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replaced i3status with i3blocks-gaps

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toerd 6 years ago
parent 7474a25386
commit 15a8f7e908
34 changed files with 3603 additions and 1 deletions
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4
pack.csv
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@ -14,6 +14,7 @@ A,P,intel-ucode,Microcode update files for Intel CPUs
L,P,acpi,Client for battery power and thermal readings
L,P,acpid,A daemon for delivering ACPI power management events with netlink support
A,P,openssh,Premier connectivity tool for remote login with the SSH protocol
A,P,smbclient,sambaclient to access network shares
# Package management
A,P,reflector,A script to retrieve and filter the latest Pacman mirror list.
@ -37,7 +38,8 @@ A,M,st,Terminal Emulator compiled manually from dotfiles repo
# Window Management and eyecandy
A,P,i3-gaps,A fork of i3wm tiling window manager with more features including gaps
A,P,i3bar,statusbar which comes with i3
A,P,i3status,sends systeminformation to the i3bar
# A,P,i3status,sends systeminformation to the i3bar
A,M,i3blocks-gaps,sends systeminformation to the i3bar
A,P,dmenu,Generic menu for X
A,P,feh,Image toolbelt

1 # First column: A = All, L = Laptop, D = Desktop
14 L,P,acpid,A daemon for delivering ACPI power management events with netlink support
15 A,P,openssh,Premier connectivity tool for remote login with the SSH protocol
16 # Package management A,P,smbclient,sambaclient to access network shares
17 # Package management
18 A,P,reflector,A script to retrieve and filter the latest Pacman mirror list.
19 # Fonts
20 A,A,nerd-fonts-hack,Systemfont
38 # Display management A,P,feh,Image toolbelt
39 A,P,arandr,Provide a simple visual front end for XRandR 1.2. # Display management
40 # File browser A,P,arandr,Provide a simple visual front end for XRandR 1.2.
41 A,P,ranger,A simple vim-like file manager # File browser
42 A,P,ranger,A simple vim-like file manager
43 A,P,w3m,Terminal webbrowser used to preview images in ranger
44 A,P,imlib2,Required lib to preview images in st + ranger
45 # Text editing

11
packages/i3blocks-gaps/.travis.yml
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language: c
env:
- TARGET=all
- TARGET=debug
compiler:
- gcc
script:
- make $TARGET

37
packages/i3blocks-gaps/CHANGELOG.md
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# CHANGELOG
## master
## 1.4
* Several scripts improvements and additions.
* Add support for the "markup" property (GH #94).
* Merge contrib scripts into the defaults (GH #36).
* Add support for persistent blocks (GH #85).
* Add support for JSON output format (GH #85).
## 1.3
* Fix click checking (GH #34).
* Use an alarm (if needed), which is more accurate.
* Use real-time signals (SIGRTMIN+1 to SIGRTMAX) for blocks, deprecate
SIGUSR1 and SIGUSR2.
* Implement asynchronous block updates (GH #23).
* Now check for config file ~/.config/i3blocks/config (or
$XDG_CONFIG_HOME/i3blocks/config if set) before ~/.i3blocks.conf (GH #32),
and similar with $XDG_CONFIG_DIRS.
* Add a cpu usage script (GH #11).
## 1.2
* Always define env variables related to clicks. Thus, set them to an empty
string when no click happened (GH #9).
## 1.1
* Change return code for urgency to 33 (GH #8).
* Do not setup stdin if it refers to a tty (GH #7).
## 1.0
Initial release

674
packages/i3blocks-gaps/COPYING
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PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
16. Limitation of Liability.
IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
SUCH DAMAGES.
17. Interpretation of Sections 15 and 16.
If the disclaimer of warranty and limitation of liability provided
above cannot be given local legal effect according to their terms,
reviewing courts shall apply local law that most closely approximates
an absolute waiver of all civil liability in connection with the
Program, unless a warranty or assumption of liability accompanies a
copy of the Program in return for a fee.
END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.
To do so, attach the following notices to the program. It is safest
to attach them to the start of each source file to most effectively
state the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
<one line to give the program's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
Also add information on how to contact you by electronic and paper mail.
If the program does terminal interaction, make it output a short
notice like this when it starts in an interactive mode:
<program> Copyright (C) <year> <name of author>
This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, your program's commands
might be different; for a GUI interface, you would use an "about box".
You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU GPL, see
<http://www.gnu.org/licenses/>.
The GNU General Public License does not permit incorporating your program
into proprietary programs. If your program is a subroutine library, you
may consider it more useful to permit linking proprietary applications with
the library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License. But first, please read
<http://www.gnu.org/philosophy/why-not-lgpl.html>.

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RELEASE_VERSION = 1.4
ifndef PREFIX
PREFIX=/usr/local
endif
ifndef SYSCONFDIR
ifeq ($(PREFIX),/usr)
SYSCONFDIR=/etc
else
SYSCONFDIR=$(PREFIX)/etc
endif
endif
ifndef DATAROOTDIR
DATAROOTDIR=$(PREFIX)/share
endif
ifndef LIBEXECDIR
LIBEXECDIR=$(PREFIX)/libexec
endif
ifndef VERSION
VERSION = $(shell git describe --tags --always 2> /dev/null)
ifeq ($(strip $(VERSION)),)
VERSION = $(RELEASE_VERSION)
endif
endif
PROGRAM = i3blocks
CPPFLAGS += -DSYSCONFDIR=\"$(SYSCONFDIR)\"
CPPFLAGS += -DVERSION=\"${VERSION}\"
CFLAGS += -std=gnu99 -Iinclude -Wall -Werror=format-security
OBJS := $(sort $(wildcard src/*.c))
OBJS := $(OBJS:.c=.o)
%.o: %.c %.h
$(CC) $(CPPFLAGS) $(CFLAGS) -c -o $@ $<
@echo " CC $<"
all: $(PROGRAM)
debug: CPPFLAGS += -DDEBUG
debug: CFLAGS += -g
debug: $(PROGRAM)
$(PROGRAM): ${OBJS}
$(CC) $(LDFLAGS) -o $@ $^
@echo " LD $@"
man: $(PROGRAM).1
$(PROGRAM).1: $(PROGRAM).1.md
pandoc --to man --standalone --output $@ $<
clean:
rm -f src/*.o $(PROGRAM)
install: all
install -m 755 -d $(DESTDIR)$(PREFIX)/bin
install -m 755 -d $(DESTDIR)$(SYSCONFDIR)
install -m 755 -d $(DESTDIR)$(LIBEXECDIR)/$(PROGRAM)
install -m 755 $(PROGRAM) $(DESTDIR)$(PREFIX)/bin/$(PROGRAM)
sed 's,$$SCRIPT_DIR,$(LIBEXECDIR)/$(PROGRAM),' $(PROGRAM).conf > $(DESTDIR)$(SYSCONFDIR)/$(PROGRAM).conf
chmod 644 $(DESTDIR)$(SYSCONFDIR)/$(PROGRAM).conf
install -m 755 scripts/* $(DESTDIR)$(LIBEXECDIR)/$(PROGRAM)/
install-man: man
install -m 755 -d $(DESTDIR)$(DATAROOTDIR)/man/man1
install -m 644 $(PROGRAM).1 $(DESTDIR)$(DATAROOTDIR)/man/man1
uninstall:
rm -f $(DESTDIR)$(PREFIX)/bin/$(PROGRAM)
rm -f $(DESTDIR)$(SYSCONFDIR)/$(PROGRAM).conf
rm -rf $(DESTDIR)$(LIBEXECDIR)/$(PROGRAM)
uninstall-man:
rm -f $(DESTDIR)$(DATAROOTDIR)/man/man1/$(PROGRAM).1
dist: clean man
( git ls-files * ; ls $(PROGRAM).1 ) | \
tar -czT - --transform 's,^,$(PROGRAM)-$(VERSION)/,' \
-f $(PROGRAM)-$(VERSION).tar.gz
distclean: clean
rm -f $(PROGRAM).1 $(PROGRAM)-*.tar.gz
.PHONY: all clean install uninstall install-man uninstall-man

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# i3blocks-gaps
This repository is a fork of [i3blocks](https://github.com/vivien/i3blocks) made to be compatible with [i3-gaps](https://github.com/Airblader/i3), itself a fork of i3wm.
***
i3blocks is a highly flexible **status line** for the [i3](http://i3wm.org)
window manager. It handles *clicks*, *signals* and *language-agnostic* user
*scripts*.
The content of each *block* (e.g. time, battery status, network state, ...) is
the output of a *command* provided by the user. Blocks are updated on *click*,
at a given *interval* of time or on a given *signal*, also specified by the
user.
It aims to respect the
[i3bar protocol](http://i3wm.org/docs/i3bar-protocol.html), providing
customization such as text alignment, urgency, color, and more.
- - -
Here is an example of status line, showing the time updated every 5 seconds,
the volume updated only when i3blocks receives a SIGRTMIN+1, and click events.
```` ini
[volume]
label=Volume:
command=amixer get Master | grep -E -o '[0-9]{1,3}?%' | head -1
interval=once
signal=1
# use 'pkill -RTMIN+1 i3blocks' after changing the volume
[time]
command=date '+%D %T'
interval=5
[clickme]
full_text=Click me!
command=echo button=$BLOCK_BUTTON x=$BLOCK_X y=$BLOCK_Y
min_width=button=1 x=1366 y=768
align=left
````
You can use your own scripts, or the
[ones](https://github.com/Airblader/i3blocks-gaps/tree/master/scripts) provided with
i3blocks. Many [community-contributed scripts](https://github.com/vivien/i3blocks-contrib) are also available. Feel free to contribute and improve them!
The default config will look like this:
![](http://i.imgur.com/p3d6MeK.png)
The scripts provided by default may use external tools:
* `mpstat` (often provided by the *sysstat* package) used by `cpu_usage`.
* `acpi` (often provided by a package of the same name) used by `battery`.
The user contributed scripts may also use external tools:
* `playerctl` (available [here](https://github.com/acrisci/playerctl)) used by `mediaplayer`.
* `sensors` (often provided by the *lm-sensors* package) used by `temperature`.
## Documentation
For more information about how it works, please refer to the
[**manpage**](http://vivien.github.io/i3blocks).
You can also take a look at the
[i3bar protocol](http://i3wm.org/docs/i3bar-protocol.html) to see what
possibilities it offers you.
Take a look at the [wiki](https://github.com/vivien/i3blocks/wiki) for examples
of blocks and screenshots. If you want to share your ideas and status line,
feel free to edit it!
## Installation
Install i3blocks-gaps from source:
$ git clone https://github.com/Airblader/i3blocks-gaps i3blocks
$ cd i3blocks
$ make clean debug # or make clean all
# make install
Note: the generation of the manpage requires the `pandoc` utility, packaged in
common distributions as `pandoc`.
### Usage
* Set your `status_command` in a bar block of your i3 config file:
bar {
status_command i3blocks
}
* For customization, copy the default i3blocks.conf into ~/.i3blocks.conf
(e.g. `cp /etc/i3blocks.conf ~/.i3blocks.conf`)
* Restart i3 (e.g. `i3-msg restart`)
## Copying
i3blocks is Copyright (C) 2014 Vivien Didelot<br />
See the file COPYING for information of licensing and distribution.

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% I3BLOCKS(1)
# NAME
i3blocks - A flexible scheduler for your i3bar blocks
# SYNOPSIS
i3blocks [*options*]
# DESCRIPTION
**i3blocks** allows one to easily describe blocks in a simple format, and
generate a status line for i3bar(1). It handles clicks, signals and time
interval for user scripts.
#OPTIONS
-c <configfile>
: Specifies an alternate configuration file path. By default, i3blocks looks
for configuration files in the following order (note that /etc may be
prefixed with /usr/local depending on the compilation flags):
1. ~/.config/i3blocks/config (or $XDG_CONFIG_HOME/i3blocks/config if set)
2. ~/.i3blocks.conf
3. /etc/xdg/i3blocks/config (or $XDG_CONFIG_DIRS/i3blocks/config if set)
4. /etc/i3blocks.conf
-v
: Log level. This option is cumulative. By default, error messages are
displayed on stderr. Passed once, a failure during an update is shown
within the block. Passed twice enables the debug messages on stderr.
-V
: Print the version and exit.
-h
: Print the help message and exit.
# CONFIGURATION
The configuration file is an ini file. Each section describes a new block.
A line beginning with a `#` sign is a comment, and empty lines are ignored.
A property is a `key=value` pair per line, with no space around the equal sign.
Properties declared outside a block (i.e. at the beginning of the file)
describe global settings.
Here is an example config file:
# This is a comment
interval=5
color=#00FF00
[weather]
command=~/bin/weather.pl
interval=1800
[time]
command=date +%T
To use i3blocks as your status line, define it in a *bar* block of your
`~/i3/config` file:
bar {
status_command i3blocks
}
# BLOCK
The properties used to describe a block are the keys specified in the i3bar
protocol http://i3wm.org/docs/i3bar-protocol.html , plus additional properties
used by **i3blocks** to describe when and how to update a block.
All the supported properties are described below.
The following keys are standard, see
http://i3wm.org/docs/i3bar-protocol.html
for details.
- `full_text`
- `short_text`
- `color`
- `background`
- `border`
- `min_width`
- `align`
- `name`
- `instance`
- `urgent`
- `separator`
- `separator_block_width`
- `markup`
The following keys are specific to **i3blocks**.
`command`
: The command executed by a shell, used to update the block. The expected
behavior is described below, in the **COMMAND** section.
`interval`
: If it is a positive integer, then the block is spawned on startup and the
value is used as a time interval in seconds to schedule future updates.
If unspecified or 0, the block won't be executed on startup (which is
useful to simulate buttons).
If "*once*" (or -1), the block will be executed only on startup (note that a
click or signal will still trigger an update).
If "*repeat*" (or -2), the block will be spawned on startup, and as soon as
it terminates (useful to repeat blocking commands). Use with caution!
If "*persist*" (or -3), the block will be executed only on startup, and
updated as soon as it outputs a line. Thus limited to single line updates.
`signal`
: The signal number used to update the block. All the real-time (think
prioritized and queueable) signals are available to the user. The number is
valid between 1 and N, where SIGRTMIN+N = SIGRTMAX. (Note: there are 31
real-time signals in Linux.) For instance, `signal=10` means that this
block will be updated when **i3blocks** receives SIGRTMIN+10.
`label`
: An optional label to preprend to the `full_text` after an update.
`format`
: This property specifies the format of the output text. The default format
is plain text, as described in the **COMMAND** section.
If "json" (or 1) is used, the block output is parsed as JSON.
# COMMAND
The value of the `command` key will be passed and executed as is by a shell.
The standard output of the command line is used to update the block content.
Each non-empty line of the output will overwrite the corresponding property:
1. full_text
2. short_text
3. color
For example, this script sets the `full_text` in blue but no `short_text`:
echo "Here's my label"
echo
echo \#0000FF
If the command line returns 0 or 33, the block is updated. Otherwise, it is
considered a failure and the first line (if any) is still displayed. Note that
stderr is ignored. A return code of 33 will set the `urgent` flag to true.
For example, this script prints the battery percentage and sets the urgent flag
if it is below 10%:
BAT=`acpi -b | grep -E -o '[0-9][0-9]?%'`
echo "BAT: $BAT"
test ${BAT%?} -le 10 && exit 33 || exit 0
When forking a block command, **i3blocks** will set the environment with some
`BLOCK_*` variables. The following variables are always provided, with
eventually an empty string as the value.
`BLOCK_NAME`
: The name of the block (usually the section name).
`BLOCK_INSTANCE`
: An optional argument to the script.
`BLOCK_BUTTON`
: Mouse button (1, 2 or 3) if the block was clicked.
`BLOCK_X` and `BLOCK_Y`
: Coordinates where the click occurred, if the block was clicked.
Here is an example using the environment:
[block]
command=echo name=$BLOCK_NAME instance=$BLOCK_INSTANCE
interval=1
[clickme]
full_text=Click me!
command=echo button=$BLOCK_BUTTON x=$BLOCK_X y=$BLOCK_Y
min_width=button=1 x=1366 y=768
align=left
Note that **i3blocks** provides a set of optional scripts for convenience, such
as network status, battery check, cpu load, volume, etc.
# EXAMPLES
As an example, here is a close configuration to i3status(1) default settings:
**TODO**
interval=5
signal=10
[ipv6]
[free]
[dhcp]
[vpn]
[wifi]
[ethernet]
min_width=E: 255.255.255.255 (1000 Mbit/s)
[battery]
[cpu]
[datetime]
The following block shows the usage of `signal` with some i3(1) bindings
which adjust the volume, before issuing a `pkill -RTMIN+1 i3blocks`:
[volume]
command=echo -n 'Volume: '; amixer get Master | grep -E -o '[0-9][0-9]?%'
interval=once
signal=1
# no interval, only check on SIGRTMIN+1
Here is an example of a very minimalist config, assuming you have a bunch of
scripts under `~/bin/blocks/` with the same name as the blocks:
command=~/bin/blocks/$BLOCK_NAME
interval=1
[free]
[wifi]
[ethernet]
[battery]
[cpu]
[datetime]
# SEE ALSO
The development of i3blocks takes place on [Github](https://github.com/vivien/i3blocks).
The [wiki](https://github.com/vivien/i3blocks/wiki) is a good
source of examples for blocks and screenshots.
`i3` (1), `i3bar` (1), `i3status` (1)
# Reporting Bugs
Please report bugs on the [issue tracker](https://github.com/vivien/i3blocks/issues).
# Known Bugs
None.
# AUTHOR
Written by Vivien Didelot <vivien.didelot@gmail.com>.
# COPYRIGHT
Copyright (C) 2014 Vivien Didelot <vivien.didelot@gmail.com>
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it. There is NO
WARRANTY, to the extent permitted by law.

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# i3blocks config file
#
# Please see man i3blocks for a complete reference!
# The man page is also hosted at http://vivien.github.io/i3blocks
#
# List of valid properties:
#
# align
# color
# background
# border
# command
# full_text
# instance
# interval
# label
# min_width
# name
# separator
# separator_block_width
# short_text
# signal
# urgent
# Global properties
#
# The top properties below are applied to every block, but can be overridden.
# Each block command defaults to the script name to avoid boilerplate.
command=$SCRIPT_DIR/$BLOCK_NAME
separator_block_width=15
markup=none
# Volume indicator
#
# The first parameter sets the step (and units to display)
# The second parameter overrides the mixer selection
# See the script for details.
[volume]
label=VOL
#label=♪
instance=Master
#instance=PCM
interval=once
signal=10
# Memory usage
#
# The type defaults to "mem" if the instance is not specified.
[memory]
label=MEM
separator=false
interval=30
[memory]
label=SWAP
instance=swap
separator=false
interval=30
# Disk usage
#
# The directory defaults to $HOME if the instance is not specified.
# The script may be called with a optional argument to set the alert
# (defaults to 10 for 10%).
[disk]
label=HOME
#instance=/mnt/data
interval=30
# Network interface monitoring
#
# If the instance is not specified, use the interface used for default route.
# The address can be forced to IPv4 or IPv6 with -4 or -6 switches.
[iface]
#instance=wlan0
color=#00FF00
interval=10
separator=false
[wifi]
#instance=wlp3s0
interval=10
separator=false
[bandwidth]
#instance=eth0
interval=5
# CPU usage
#
# The script may be called with -w and -c switches to specify thresholds,
# see the script for details.
[cpu_usage]
label=CPU
interval=10
min_width=CPU: 100.00%
#separator=false
#[load_average]
#interval=10
# Battery indicator
#
# The battery instance defaults to 0.
[battery]
label=BAT
#label=⚡
#instance=1
interval=30
# Date Time
#
[time]
command=date '+%Y-%m-%d %H:%M:%S'
interval=5

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/*
* bar.h - definition of a status line handling functions
* Copyright (C) 2014 Vivien Didelot
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _BAR_H
#define _BAR_H
struct bar {
struct block *blocks;
unsigned int num;
};
void bar_poll_timed(struct bar *);
void bar_poll_clicked(struct bar *);
void bar_poll_outdated(struct bar *);
void bar_poll_signaled(struct bar *, int);
void bar_poll_exited(struct bar *);
void bar_poll_readable(struct bar *, int);
#endif /* _BAR_H */

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/*
* block.h - definition of a block
* Copyright (C) 2014 Vivien Didelot
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _BLOCK_H
#define _BLOCK_H
#include <sys/types.h>
#include "click.h"
#include "log.h"
#define PROP_I3BAR 1 /* See http://i3wm.org/docs/i3bar-protocol.html */
#define PROP_GAPS 1 /* See https://github.com/Airblader/i3/blob/gaps/docs/i3bar-protocol */
#define PROP_STRING 2
#define PROP_NUMBER 4
#define PROP_BOOLEAN 8
#define INTER_ONCE -1
#define INTER_REPEAT -2
#define INTER_PERSIST -3
#define FORMAT_PLAIN 0
#define FORMAT_JSON 1
/* Block command exit codes */
#define EXIT_URGENT '!' /* 33 */
#define EXIT_ERR_INTERNAL 66
#define PROPERTIES(_) \
_(full_text, 1024, PROP_I3BAR | PROP_STRING) \
_(short_text, 512, PROP_I3BAR | PROP_STRING) \
_(color, 10, PROP_I3BAR | PROP_STRING) \
_(background, 10, PROP_I3BAR | PROP_STRING) \
_(border, 10, PROP_I3BAR | PROP_STRING) \
_(min_width, 1024, PROP_I3BAR | PROP_STRING | PROP_NUMBER) \
_(align, 8, PROP_I3BAR | PROP_STRING) \
_(name, 32, PROP_I3BAR | PROP_STRING) \
_(instance, 256, PROP_I3BAR | PROP_STRING) \
_(urgent, 8, PROP_I3BAR | PROP_BOOLEAN) \
_(separator, 8, PROP_I3BAR | PROP_BOOLEAN) \
_(separator_block_width, 8, PROP_I3BAR | PROP_NUMBER) \
_(markup, 8, PROP_I3BAR | PROP_STRING) \
_(command, 1024, PROP_STRING) \
_(interval, 8, PROP_STRING | PROP_NUMBER) \
_(signal, 8, PROP_NUMBER) \
_(label, 32, PROP_STRING) \
_(format, 8, PROP_STRING | PROP_NUMBER) \
_(border_top, 8, PROP_GAPS | PROP_NUMBER) \
_(border_bottom, 8, PROP_GAPS | PROP_NUMBER) \
_(border_left, 8, PROP_GAPS | PROP_NUMBER) \
_(border_right, 8, PROP_GAPS | PROP_NUMBER) \
struct properties {
#define DEFINE(_name, _size, _flags) char _name[_size];
PROPERTIES(DEFINE);
#undef DEFINE
};
struct block {
struct properties default_props;
struct properties updated_props;
/* Shortcuts */
int interval;
unsigned signal;
unsigned format;
/* Runtime info */
unsigned long timestamp;
pid_t pid;
int out, err;
};
/* Shortcuts to config */
#define NAME(_block) (_block->default_props.name)
#define INSTANCE(_block) (_block->default_props.instance)
#define COMMAND(_block) (_block->default_props.command)
#define LABEL(_block) (_block->default_props.label)
#define INTERVAL(_block) (_block->default_props.interval)
/* Shortcuts to update */
#define FULL_TEXT(_block) (_block->updated_props.full_text)
#define bdebug(block, msg, ...) \
debug("[%s] " msg, NAME(block), ##__VA_ARGS__)
#define berror(block, msg, ...) \
error("[%s] " msg, NAME(block), ##__VA_ARGS__)
#define berrorx(block, msg, ...) \
errorx("[%s] " msg, NAME(block), ##__VA_ARGS__)
void block_setup(struct block *);
void block_spawn(struct block *, struct click *);
void block_reap(struct block *);
void block_update(struct block *);
#endif /* _BLOCK_H */

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/*
* click.h - definition of click parsing functions
* Copyright (C) 2014 Vivien Didelot
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _CLICK_H
#define _CLICK_H
struct click {
char *name;
char *instance;
char *button;
char *x;
char *y;
};
void click_parse(char *, struct click *);
#endif /* _CLICK_H */

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/*
* ini.h - INI parsing header
* Copyright (C) 2014 Vivien Didelot
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _INI_H
#define _INI_H
#include "bar.h"
struct bar *ini_load(const char *);
#endif /* _INI_H */

25
packages/i3blocks-gaps/include/io.h
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/*
* io.h - header for non-blocking I/O operations
* Copyright (C) 2015 Vivien Didelot
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _IO_H
#define _IO_H
int io_signal(int, int);
int io_readline(int, char *, size_t);
#endif /* _IO_H */

29
packages/i3blocks-gaps/include/json.h
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/*
* json.h - JSON manipulation header
* Copyright (C) 2014 Vivien Didelot
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _JSON_H
#define _JSON_H
#include "bar.h"
#include "block.h"
void json_parse(const char *json, const char *name, int *start, int *len);
void json_print_bar(struct bar *);
#endif /* _JSON_H */

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packages/i3blocks-gaps/include/log.h
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/*
* log.h - debug and error printing macros
* Copyright (C) 2014 Vivien Didelot
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _LOG_H
#define _LOG_H
#include <errno.h>
#include <stdio.h>
#include <string.h>
extern unsigned log_level;
enum log_level {
LOG_NORMAL,
LOG_WARN,
LOG_DEBUG,
};
#define debug(msg, ...) \
if (log_level >= LOG_DEBUG) { \
fprintf(stderr, "DEBUG %s:%d: " msg "\n", __func__, __LINE__, ##__VA_ARGS__); \
}
#define error(msg, ...) \
fprintf(stderr, "ERROR %s:%d: " msg "\n", __func__, __LINE__, ##__VA_ARGS__)
#define errorx(msg, ...) \
error(msg ": %s", ##__VA_ARGS__, strerror(errno))
#endif /* _LOG_H */

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packages/i3blocks-gaps/include/sched.h
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/*
* sched.h - scheduling header
* Copyright (C) 2014 Vivien Didelot
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _SCHED_H
#define _SCHED_H
int sched_init(struct bar *);
void sched_start(struct bar *);
#endif /* _SCHED_H */

107
packages/i3blocks-gaps/scripts/bandwidth
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#!/bin/bash
# Copyright (C) 2012 Stefan Breunig <stefan+measure-net-speed@mathphys.fsk.uni-heidelberg.de>
# Copyright (C) 2014 kaueraal
# Copyright (C) 2015 Thiago Perrotta <perrotta dot thiago at poli dot ufrj dot br>
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
# Get custom IN and OUT labels if provided by command line arguments
while [[ $# -gt 1 ]]; do
key="$1"
case "$key" in
-i|--inlabel)
INLABEL="$2"
shift;;
-o|--outlabel)
OUTLABEL="$2"
shift;;
esac
shift
done
[[ -z $INLABEL ]] && INLABEL="IN "
[[ -z $OUTLABEL ]] && OUTLABEL="OUT "
# Use the provided interface, otherwise the device used for the default route.
if [[ -n $BLOCK_INSTANCE ]]; then
INTERFACE=$BLOCK_INSTANCE
else
INTERFACE=$(ip route | awk '/^default/ { print $5 ; exit }')
fi
# Issue #36 compliant.
if ! [ -e "/sys/class/net/${INTERFACE}/operstate" ] || ! [ "`cat /sys/class/net/${INTERFACE}/operstate`" = "up" ]
then
echo "$INTERFACE down"
echo "$INTERFACE down"
echo "#FF0000"
exit 0
fi
# path to store the old results in
path="/dev/shm/$(basename $0)-${INTERFACE}"
# grabbing data for each adapter.
read rx < "/sys/class/net/${INTERFACE}/statistics/rx_bytes"
read tx < "/sys/class/net/${INTERFACE}/statistics/tx_bytes"
# get time
time=$(date +%s)
# write current data if file does not exist. Do not exit, this will cause
# problems if this file is sourced instead of executed as another process.
if ! [[ -f "${path}" ]]; then
echo "${time} ${rx} ${tx}" > "${path}"
chmod 0666 "${path}"
fi
# read previous state and update data storage
read old < "${path}"
echo "${time} ${rx} ${tx}" > "${path}"
# parse old data and calc time passed
old=(${old//;/ })
time_diff=$(( $time - ${old[0]} ))
# sanity check: has a positive amount of time passed
[[ "${time_diff}" -gt 0 ]] || exit
# calc bytes transferred, and their rate in byte/s
rx_diff=$(( $rx - ${old[1]} ))
tx_diff=$(( $tx - ${old[2]} ))
rx_rate=$(( $rx_diff / $time_diff ))
tx_rate=$(( $tx_diff / $time_diff ))
# shift by 10 bytes to get KiB/s. If the value is larger than
# 1024^2 = 1048576, then display MiB/s instead
# incoming
echo -n "$INLABEL"
rx_kib=$(( $rx_rate >> 10 ))
if hash bc 2>/dev/null && [[ "$rx_rate" -gt 1048576 ]]; then
printf '%sM' "`echo "scale=1; $rx_kib / 1024" | bc`"
else
echo -n "${rx_kib}K"
fi
echo -n " "
# outgoing
echo -n "$OUTLABEL"
tx_kib=$(( $tx_rate >> 10 ))
if hash bc 2>/dev/null && [[ "$tx_rate" -gt 1048576 ]]; then
printf '%sM' "`echo "scale=1; $tx_kib / 1024" | bc`"
else
echo -n "${tx_kib}K"
fi

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packages/i3blocks-gaps/scripts/battery
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#!/usr/bin/perl
#
# Copyright 2014 Pierre Mavro <deimos@deimos.fr>
# Copyright 2014 Vivien Didelot <vivien@didelot.org>
#
# Licensed under the terms of the GNU GPL v3, or any later version.
#
# This script is meant to use with i3blocks. It parses the output of the "acpi"
# command (often provided by a package of the same name) to read the status of
# the battery, and eventually its remaining time (to full charge or discharge).
#
# The color will gradually change for a percentage below 85%, and the urgency
# (exit code 33) is set if there is less that 5% remaining.
use strict;
use warnings;
use utf8;
my $acpi;
my $status;
my $percent;
my $ac_adapt;
my $full_text;
my $short_text;
my $bat_number = $ENV{BLOCK_INSTANCE} || 0;
# read the first line of the "acpi" command output
open (ACPI, "acpi -b | grep 'Battery $bat_number' |") or die;
$acpi = <ACPI>;
close(ACPI);
# fail on unexpected output
if ($acpi !~ /: (\w+), (\d+)%/) {
die "$acpi\n";
}
$status = $1;
$percent = $2;
$full_text = "$percent%";
if ($status eq 'Discharging') {
$full_text .= ' DIS';
} elsif ($status eq 'Charging') {
$full_text .= ' CHR';
} elsif ($status eq 'Unknown') {
open (AC_ADAPTER, "acpi -a |") or die;
$ac_adapt = <AC_ADAPTER>;
close(AC_ADAPTER);
if ($ac_adapt =~ /: ([\w-]+)/) {
$ac_adapt = $1;
if ($ac_adapt eq 'on-line') {
$full_text .= ' CHR';
} elsif ($ac_adapt eq 'off-line') {
$full_text .= ' DIS';
}
}
}
$short_text = $full_text;
if ($acpi =~ /(\d\d:\d\d):/) {
$full_text .= " ($1)";
}
# print text
print "$full_text\n";
print "$short_text\n";
# consider color and urgent flag only on discharge
if ($status eq 'Discharging') {
if ($percent < 20) {
print "#FF0000\n";
} elsif ($percent < 40) {
print "#FFAE00\n";
} elsif ($percent < 60) {
print "#FFF600\n";
} elsif ($percent < 85) {
print "#A8FF00\n";
}
if ($percent < 5) {
exit(33);
}
}
exit(0);

59
packages/i3blocks-gaps/scripts/cpu_usage
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#!/usr/bin/perl
#
# Copyright 2014 Pierre Mavro <deimos@deimos.fr>
# Copyright 2014 Vivien Didelot <vivien@didelot.org>
# Copyright 2014 Andreas Guldstrand <andreas.guldstrand@gmail.com>
#
# Licensed under the terms of the GNU GPL v3, or any later version.
use strict;
use warnings;
use utf8;
use Getopt::Long;
# default values
my $t_warn = 50;
my $t_crit = 80;
my $cpu_usage = -1;
my $decimals = 2;
sub help {
print "Usage: cpu_usage [-w <warning>] [-c <critical>] [-d <decimals>]\n";
print "-w <percent>: warning threshold to become yellow\n";
print "-c <percent>: critical threshold to become red\n";
print "-d <decimals>: Use <decimals> decimals for percentage (default is $decimals) \n";
exit 0;
}
GetOptions("help|h" => \&help,
"w=i" => \$t_warn,
"c=i" => \$t_crit,
"d=i" => \$decimals,
);
# Get CPU usage
$ENV{LC_ALL}="en_US"; # if mpstat is not run under en_US locale, things may break, so make sure it is
open (MPSTAT, 'mpstat 1 1 |') or die;
while (<MPSTAT>) {
if (/^.*\s+(\d+\.\d+)\s+$/) {
$cpu_usage = 100 - $1; # 100% - %idle
last;
}
}
close(MPSTAT);
$cpu_usage eq -1 and die 'Can\'t find CPU information';
# Print short_text, full_text
printf "%.${decimals}f%%\n", $cpu_usage;
printf "%.${decimals}f%%\n", $cpu_usage;
# Print color, if needed
if ($cpu_usage >= $t_crit) {
print "#FF0000\n";
exit 33;
} elsif ($cpu_usage >= $t_warn) {
print "#FFFC00\n";
}
exit 0;

41
packages/i3blocks-gaps/scripts/disk
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#!/bin/sh
# Copyright (C) 2014 Julien Bonjean <julien@bonjean.info>
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
DIR="${BLOCK_INSTANCE:-$HOME}"
ALERT_LOW="${1:-10}" # color will turn red under this value (default: 10%)
df -h -P -l "$DIR" | awk -v alert_low=$ALERT_LOW '
/\/.*/ {
# full text
print $4
# short text
print $4
use=$5
# no need to continue parsing
exit 0
}
END {
gsub(/%$/,"",use)
if (100 - use < alert_low) {
# color
print "#FF0000"
}
}
'

61
packages/i3blocks-gaps/scripts/iface
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#!/bin/bash
# Copyright (C) 2014 Julien Bonjean <julien@bonjean.info>
# Copyright (C) 2014 Alexander Keller <github@nycroth.com>
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#------------------------------------------------------------------------
# Use the provided interface, otherwise the device used for the default route.
if [[ -n $BLOCK_INSTANCE ]]; then
IF=$BLOCK_INSTANCE
else
IF=$(ip route | awk '/^default/ { print $5 ; exit }')
fi
#------------------------------------------------------------------------
# As per #36 -- It is transparent: e.g. if the machine has no battery or wireless
# connection (think desktop), the corresponding block should not be displayed.
[[ ! -d /sys/class/net/${IF} ]] && exit
#------------------------------------------------------------------------
if [[ "$(cat /sys/class/net/$IF/operstate)" = 'down' ]]; then
echo down # full text
echo down # short text
echo \#FF0000 # color
exit
fi
case $1 in
-4)
AF=inet ;;
-6)
AF=inet6 ;;
*)
AF=inet6? ;;
esac
# if no interface is found, use the first device with a global scope
IPADDR=$(ip addr show $IF | perl -n -e "/$AF ([^\/]+).* scope global/ && print \$1 and exit")
case $BLOCK_BUTTON in
3) echo -n "$IPADDR" | xclip -q -se c ;;
esac
#------------------------------------------------------------------------
echo "$IPADDR" # full text
echo "$IPADDR" # short text

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packages/i3blocks-gaps/scripts/load_average
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#!/bin/sh
# Copyright (C) 2014 Julien Bonjean <julien@bonjean.info>
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
load="$(cut -d ' ' -f1 /proc/loadavg)"
cpus="$(nproc)"
# full text
echo "$load"
# short text
echo "$load"
# color if load is too high
awk -v cpus=$cpus -v cpuload=$load '
BEGIN {
if (cpus <= cpuload) {
print "#FF0000";
exit 33;
}
}
'

65
packages/i3blocks-gaps/scripts/memory
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#!/bin/sh
# Copyright (C) 2014 Julien Bonjean <julien@bonjean.info>
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
TYPE="${BLOCK_INSTANCE:-mem}"
awk -v type=$TYPE '
/^MemTotal:/ {
mem_total=$2
}
/^MemFree:/ {
mem_free=$2
}
/^Buffers:/ {
mem_free+=$2
}
/^Cached:/ {
mem_free+=$2
}
/^SwapTotal:/ {
swap_total=$2
}
/^SwapFree:/ {
swap_free=$2
}
END {
if (type == "swap") {
free=swap_free/1024/1024
used=(swap_total-swap_free)/1024/1024
total=swap_total/1024/1024
} else {
free=mem_free/1024/1024
used=(mem_total-mem_free)/1024/1024
total=mem_total/1024/1024
}
pct=used/total*100
# full text
printf("%.1fG/%.1fG (%.f%%)\n", used, total, pct)
# short text
printf("%.f%%\n", pct)
# color
if (pct > 90) {
print("#FF0000\n")
} else if (pct > 80) {
print("#FFAE00\n")
} else if (pct > 70) {
print("#FFF600\n")
}
}
' /proc/meminfo

70
packages/i3blocks-gaps/scripts/volume
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#!/bin/bash
# Copyright (C) 2014 Julien Bonjean <julien@bonjean.info>
# Copyright (C) 2014 Alexander Keller <github@nycroth.com>
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#------------------------------------------------------------------------
# The second parameter overrides the mixer selection
# For PulseAudio users, use "pulse"
# For Jack/Jack2 users, use "jackplug"
# For ALSA users, you may use "default" for your primary card
# or you may use hw:# where # is the number of the card desired
MIXER="default"
[ -n "$(lsmod | grep pulse)" ] && MIXER="pulse"
[ -n "$(lsmod | grep jack)" ] && MIXER="jackplug"
MIXER="${2:-$MIXER}"
# The instance option sets the control to report and configure
# This defaults to the first control of your selected mixer
# For a list of the available, use `amixer -D $Your_Mixer scontrols`
SCONTROL="${BLOCK_INSTANCE:-$(amixer -D $MIXER scontrols |
sed -n "s/Simple mixer control '\([A-Za-z ]*\)',0/\1/p" |
head -n1
)}"
# The first parameter sets the step to change the volume by (and units to display)
# This may be in in % or dB (eg. 5% or 3dB)
STEP="${1:-5%}"
#------------------------------------------------------------------------
capability() { # Return "Capture" if the device is a capture device
amixer -D $MIXER get $SCONTROL |
sed -n "s/ Capabilities:.*cvolume.*/Capture/p"
}
volume() {
amixer -D $MIXER get $SCONTROL $(capability)
}
format() {
perl_filter='if (/.*\[(\d+%)\] (\[(-?\d+.\d+dB)\] )?\[(on|off)\]/)'
perl_filter+='{CORE::say $4 eq "off" ? "MUTE" : "'
# If dB was selected, print that instead
perl_filter+=$([[ $STEP = *dB ]] && echo '$3' || echo '$1')
perl_filter+='"; exit}'
perl -ne "$perl_filter"
}
#------------------------------------------------------------------------
case $BLOCK_BUTTON in
3) amixer -q -D $MIXER sset $SCONTROL $(capability) toggle ;; # right click, mute/unmute
4) amixer -q -D $MIXER sset $SCONTROL $(capability) ${STEP}+ unmute ;; # scroll up, increase
5) amixer -q -D $MIXER sset $SCONTROL $(capability) ${STEP}- unmute ;; # scroll down, decrease
esac
volume | format

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packages/i3blocks-gaps/scripts/wifi
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#!/bin/bash
# Copyright (C) 2014 Alexander Keller <github@nycroth.com>
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#------------------------------------------------------------------------
INTERFACE="${BLOCK_INSTANCE:-wlan0}"
#------------------------------------------------------------------------
# As per #36 -- It is transparent: e.g. if the machine has no battery or wireless
# connection (think desktop), the corresponding block should not be displayed.
[[ ! -d /sys/class/net/${INTERFACE}/wireless ]] ||
[[ "$(cat /sys/class/net/$INTERFACE/operstate)" = 'down' ]] && exit
#------------------------------------------------------------------------
QUALITY=$(grep $INTERFACE /proc/net/wireless | awk '{ print int($3 * 100 / 70) }')
#------------------------------------------------------------------------
echo $QUALITY% # full text
echo $QUALITY% # short text
# color
if [[ $QUALITY -ge 80 ]]; then
echo "#00FF00"
elif [[ $QUALITY -ge 60 ]]; then
echo "#FFF600"
elif [[ $QUALITY -ge 40 ]]; then
echo "#FFAE00"
else
echo "#FF0000"
fi

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packages/i3blocks-gaps/src/.gitignore vendored
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*.o

148
packages/i3blocks-gaps/src/bar.c
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/*
* bar.c - status line handling functions
* Copyright (C) 2014 Vivien Didelot
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <errno.h>
#include <signal.h>
#include <stddef.h>
#include <string.h>
#include <sys/wait.h>
#include <time.h>
#include <unistd.h>
#include "bar.h"
#include "block.h"
#include "click.h"
#include "io.h"
#include "log.h"
void
bar_poll_timed(struct bar *bar)
{
for (int i = 0; i < bar->num; ++i) {
struct block *block = bar->blocks + i;
/* spawn unless it is only meant for click or signal */
if (block->interval != 0)
block_spawn(block, NULL);
}
}
void
bar_poll_clicked(struct bar *bar)
{
char json[1024] = { 0 };
while (io_readline(STDIN_FILENO, json, sizeof(json)) > 0) {
struct click click;
/* find the corresponding block */
click_parse(json, &click);
if (!*click.name && !*click.instance)
continue;
for (int i = 0; i < bar->num; ++i) {
struct block *block = bar->blocks + i;
if (strcmp(NAME(block), click.name) == 0 && strcmp(INSTANCE(block), click.instance) == 0) {
bdebug(block, "clicked");
block_spawn(block, &click);
break; /* Unlikely to click several blocks */
}
}
}
}
void
bar_poll_outdated(struct bar *bar)
{
for (int i = 0; i < bar->num; ++i) {
struct block *block = bar->blocks + i;
if (block->interval > 0) {
const unsigned long now = time(NULL);
const unsigned long next_update = block->timestamp + block->interval;
if (((long) (next_update - now)) <= 0) {
bdebug(block, "outdated");
block_spawn(block, NULL);
}
}
}
}
void
bar_poll_signaled(struct bar *bar, int sig)
{
for (int i = 0; i < bar->num; ++i) {
struct block *block = bar->blocks + i;
if (block->signal == sig) {
bdebug(block, "signaled");
block_spawn(block, NULL);
}
}
}
void
bar_poll_exited(struct bar *bar)
{
for (;;) {
siginfo_t infop = { 0 };
/* Non-blocking check for dead child(ren) */
if (waitid(P_ALL, 0, &infop, WEXITED | WNOHANG | WNOWAIT) == -1)
if (errno != ECHILD)
errorx("waitid");
/* Error or no (dead yet) child(ren) */
if (infop.si_pid == 0)
break;
/* Find the dead process */
for (int i = 0; i < bar->num; ++i) {
struct block *block = bar->blocks + i;
if (block->pid == infop.si_pid) {
bdebug(block, "exited");
block_reap(block);
if (block->interval == INTER_REPEAT) {
if (block->timestamp == time(NULL))
berror(block, "loop too fast");
block_spawn(block, NULL);
} else if (block->interval == INTER_PERSIST) {
bdebug(block, "unexpected exit?");
}
break;
}
}
}
}
void
bar_poll_readable(struct bar *bar, const int fd)
{
for (int i = 0; i < bar->num; ++i) {
struct block *block = bar->blocks + i;
if (block->out == fd) {
bdebug(block, "readable");
block_update(block);
break;
}
}
}

386
packages/i3blocks-gaps/src/block.c
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/*
* block.c - update of a single status line block
* Copyright (C) 2014 Vivien Didelot
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <errno.h>
#include <signal.h>
#include <stddef.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/wait.h>
#include <time.h>
#include <unistd.h>
#include "block.h"
#include "click.h"
#include "io.h"
#include "json.h"
#include "log.h"
static void
child_setenv(struct block *block, const char *name, const char *value)
{
if (setenv(name, value, 1) == -1) {
berrorx(block, "setenv(%s=%s)", name, value);
_exit(EXIT_ERR_INTERNAL);
}
}
static void
child_setup_env(struct block *block, struct click *click)
{
child_setenv(block, "BLOCK_NAME", NAME(block));
child_setenv(block, "BLOCK_INSTANCE", INSTANCE(block));
child_setenv(block, "BLOCK_INTERVAL", INTERVAL(block));
child_setenv(block, "BLOCK_BUTTON", click ? click->button : "");
child_setenv(block, "BLOCK_X", click ? click->x : "");
child_setenv(block, "BLOCK_Y", click ? click->y : "");
}
static void
child_reset_signals(struct block *block)
{
sigset_t set;
if (sigfillset(&set) == -1) {
berrorx(block, "sigfillset");
_exit(EXIT_ERR_INTERNAL);
}
/* It should be safe to assume that all signals are unblocked by default */
if (sigprocmask(SIG_UNBLOCK, &set, NULL) == -1) {
berrorx(block, "sigprocmask");
_exit(EXIT_ERR_INTERNAL);
}
}
static void
child_redirect_write(struct block *block, int pipe[2], int fd)
{
if (close(pipe[0]) == -1) {
berrorx(block, "close pipe read end");
_exit(EXIT_ERR_INTERNAL);
}
/* Defensive check */
if (pipe[1] == fd)
return;
if (dup2(pipe[1], fd) == -1) {
berrorx(block, "dup pipe write end");
_exit(EXIT_ERR_INTERNAL);
}
if (close(pipe[1]) == -1) {
berrorx(block, "close pipe write end");
_exit(EXIT_ERR_INTERNAL);
}
}
static void
child_exec(struct block *block)
{
static const char * const shell = "/bin/sh";
execl(shell, shell, "-c", COMMAND(block), (char *) NULL);
/* Unlikely to reach this point */
berrorx(block, "exec(%s -c %s)", shell, COMMAND(block));
_exit(EXIT_ERR_INTERNAL);
}
static void
block_dump_stderr(struct block *block)
{
char buf[2048] = { 0 };
/* Note read(2) returns 0 for end-of-pipe */
if (read(block->err, buf, sizeof(buf) - 1) == -1) {
berrorx(block, "read stderr");
return;
}
if (*buf)
bdebug(block, "stderr:\n{\n%s\n}", buf);
}
static void
linecpy(char **lines, char *dest, size_t size)
{
char *newline = strchr(*lines, '\n');
/* split if there's a newline */
if (newline)
*newline = '\0';
strncpy(dest, *lines, size);
*lines += strlen(dest);
/* increment if next char is non-null */
if (*(*lines + 1))
*lines += 1;
}
static void
mark_as_failed(struct block *block, const char *reason)
{
if (log_level < LOG_WARN)
return;
struct properties *props = &block->updated_props;
memset(props, 0, sizeof(struct properties));
strcpy(props->name, NAME(block));
strcpy(props->instance, INSTANCE(block));
snprintf(props->full_text, sizeof(props->full_text), "[%s] %s", NAME(block), reason);
snprintf(props->short_text, sizeof(props->short_text), "[%s] ERROR", NAME(block));
strcpy(props->color, "#FF0000");
strcpy(props->urgent, "true");
}
static void
block_update_plain_text(struct block *block, char *buf)
{
struct properties *props = &block->updated_props;
char *lines = buf;
linecpy(&lines, props->full_text, sizeof(props->full_text) - 1);
if (block->interval == INTER_PERSIST)
return;
linecpy(&lines, props->short_text, sizeof(props->short_text) - 1);
if (*lines)
linecpy(&lines, props->color, sizeof(props->color) - 1);
}
static void
block_update_json(struct block *block, char *buf)
{
struct properties *props = &block->updated_props;
int start, length, size;
#define PARSE(_name, _size, _flags) \
if ((_flags) & PROP_I3BAR) { \
json_parse(buf, #_name, &start, &length); \
if (start > 0) { \
size = _size - 1 < length ? _size - 1 : length; \
strncpy(props->_name, buf + start, size); \
props->_name[size] = '\0'; \
} \
}
PROPERTIES(PARSE);
#undef PARSE
}
void
block_update(struct block *block)
{
struct properties *props = &block->updated_props;
char buf[2048] = { 0 };
int nr;
/* Read a single line for persistent block, everything otherwise */
if (block->interval == INTER_PERSIST) {
nr = io_readline(block->out, buf, sizeof(buf));
if (nr < 0) {
berror(block, "failed to read a line");
return mark_as_failed(block, "failed to read");
} else if (nr == 0) {
berror(block, "pipe closed");
return mark_as_failed(block, "pipe closed");
}
} else {
/* Note: read(2) returns 0 for end-of-pipe */
if (read(block->out, buf, sizeof(buf) - 1) == -1) {
berrorx(block, "read stdout");
return mark_as_failed(block, strerror(errno));
}
}
/* Reset the defaults and merge the output */
memcpy(props, &block->default_props, sizeof(struct properties));
if (block->format == FORMAT_JSON)
block_update_json(block, buf);
else
block_update_plain_text(block, buf);
if (*FULL_TEXT(block) && *LABEL(block)) {
static const size_t size = sizeof(props->full_text);
char concat[size];
snprintf(concat, size, "%s %s", LABEL(block), FULL_TEXT(block));
strcpy(props->full_text, concat);
}
bdebug(block, "updated successfully");
}
void
block_spawn(struct block *block, struct click *click)
{
const unsigned long now = time(NULL);
int out[2], err[2];
if (!*COMMAND(block)) {
bdebug(block, "no command, skipping");
return;
}
if (block->pid > 0) {
bdebug(block, "process already spawned");
return;
}
if (pipe(out) == -1 || pipe(err) == -1) {
berrorx(block, "pipe");
return mark_as_failed(block, strerror(errno));
}
if (block->interval == INTER_PERSIST) {
if (io_signal(out[0], SIGRTMIN))
return mark_as_failed(block, "event I/O impossible");
}
block->pid = fork();
if (block->pid == -1) {
berrorx(block, "fork");
return mark_as_failed(block, strerror(errno));
}
/* Child? */
if (block->pid == 0) {
/* Error messages are merged into the parent's stderr... */
child_setup_env(block, click);
child_reset_signals(block);
child_redirect_write(block, out, STDOUT_FILENO);
child_redirect_write(block, err, STDERR_FILENO);
/* ... until here */
child_exec(block);
}
/*
* Note: for non-persistent blocks, no need to set the pipe read end as
* non-blocking, since it is meant to be read once the child has exited
* (and thus the write end is closed and read is available).
*/
/* Parent */
if (close(out[1]) == -1)
berrorx(block, "close stdout");
if (close(err[1]) == -1)
berrorx(block, "close stderr");
block->out = out[0];
block->err = err[0];
if (!click)
block->timestamp = now;
bdebug(block, "forked child %d at %ld", block->pid, now);
}
void
block_reap(struct block *block)
{
int status, code;
if (block->pid <= 0) {
bdebug(block, "not spawned yet");
return;
}
if (waitpid(block->pid, &status, 0) == -1) {
berrorx(block, "waitpid(%d)", block->pid);
mark_as_failed(block, strerror(errno));
goto close;
}
code = WEXITSTATUS(status);
bdebug(block, "process %d exited with %d", block->pid, code);
/* Process successfully reaped, reset the block PID */
block->pid = 0;
block_dump_stderr(block);
if (code != 0 && code != EXIT_URGENT) {
char reason[32];
if (code == EXIT_ERR_INTERNAL)
sprintf(reason, "internal error");
else
sprintf(reason, "bad exit code %d", code);
berror(block, "%s", reason);
mark_as_failed(block, reason);
goto close;
}
/* Do not update unless it was meant to terminate */
if (block->interval == INTER_PERSIST)
goto close;
block_update(block);
/* Exit code takes precedence over the output */
if (code == EXIT_URGENT)
strcpy(block->updated_props.urgent, "true");
close:
if (close(block->out) == -1)
berrorx(block, "close stdout");
if (close(block->err) == -1)
berrorx(block, "close stderr");
/* Invalidate descriptors to avoid misdetection after reassignment */
block->out = block->err = -1;
}
void block_setup(struct block *block)
{
struct properties *defaults = &block->default_props;
struct properties *updated = &block->updated_props;
/* Convenient shortcuts */
if (strcmp(defaults->interval, "once") == 0)
block->interval = INTER_ONCE;
else if (strcmp(defaults->interval, "repeat") == 0)
block->interval = INTER_REPEAT;
else if (strcmp(defaults->interval, "persist") == 0)
block->interval = INTER_PERSIST;
else
block->interval = atoi(defaults->interval);
if (strcmp(defaults->format, "json") == 0)
block->format = FORMAT_JSON;
else
block->format = FORMAT_PLAIN;
block->signal = atoi(defaults->signal);
/* First update (for static blocks and loading labels) */
memcpy(updated, defaults, sizeof(struct properties));
#define PLACEHOLDERS(_name, _size, _flags) " %s: \"%s\"\n"
#define ARGS(_name, _size, _flags) #_name, updated->_name,
debug("\n{\n" PROPERTIES(PLACEHOLDERS) "%s", PROPERTIES(ARGS) "}");
#undef ARGS
#undef PLACEHOLDERS
}

66
packages/i3blocks-gaps/src/click.c
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/*
* click.c - read and parse of a click
* Copyright (C) 2014 Vivien Didelot
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "click.h"
#include "json.h"
#include "log.h"
/*
* Parse a click, previous read from stdin.
*
* A click looks like this ("name" and "instance" can be absent):
*
* ',{"name":"foo","instance":"bar","button":1,"x":1186,"y":13}\n'
*
* Note that this function is non-idempotent. We need to parse from right to
* left. It's ok since the JSON layout is known and fixed.
*/
void
click_parse(char *json, struct click *click)
{
int nst, nlen;
int ist, ilen;
int bst, blen;
int xst, xlen;
int yst, ylen;
json_parse(json, "y", &yst, &ylen);
json_parse(json, "x", &xst, &xlen);
json_parse(json, "button", &bst, &blen);
json_parse(json, "instance", &ist, &ilen);
json_parse(json, "name", &nst, &nlen);
click->name = json + nst;
*(click->name + nlen) = '\0';
click->instance = json + ist;
*(click->instance + ilen) = '\0';
click->button = json + bst;
*(click->button + blen) = '\0';
click->y = json + yst;
*(click->y + ylen) = '\0';
click->x = json + xst;
*(click->x + xlen) = '\0';
debug("parsed click: name=%s instance=%s button=%s x=%s y=%s",
click->name, click->instance,
click->button, click->x, click->y);
}

247
packages/i3blocks-gaps/src/ini.c
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/*
* ini.c - parsing of the INI configuration file
* Copyright (C) 2014 Vivien Didelot
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <errno.h>
#include <limits.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "bar.h"
#include "block.h"
#include "log.h"
#ifndef SYSCONFDIR
#define SYSCONFDIR "/etc"
#endif
static struct block *
add_block(struct bar *bar)
{
struct block *block = NULL;
void *reloc;
reloc = realloc(bar->blocks, sizeof(struct block) * (bar->num + 1));
if (reloc) {
bar->blocks = reloc;
block = bar->blocks + bar->num;
bar->num++;
}
return block;
}
static int
parse_section(const char *line, char *name, unsigned int size)
{
char *closing = strchr(line, ']');
const int len = strlen(line);
/* stop if the last char is not a closing bracket */
if (!closing || line + len - 1 != closing) {
error("malformated section \"%s\"", line);
return 1;
}
if (size - 1 < len - 2) {
error("section name too long \"%s\"", line);
return 1;
}
memcpy(name, line + 1, len - 2);
name[len - 2] = '\0';
return 0;
}
static int
parse_property(const char *line, struct properties *props, bool strict)
{
char *equal = strchr(line, '=');
const char *key, *value;
if (!equal) {
error("malformated property, should be a key=value pair");
return 1;
}
/* split key and value */
*equal = '\0';
key = line;
value = equal + 1;
#define PARSE(_name, _size, _flags) \
if ((!strict || (_flags) & PROP_I3BAR) && strcmp(key, #_name) == 0) { \
strncpy(props->_name, value, _size - 1); \
return 0; \
}
PROPERTIES(PARSE);
#undef PARSE
error("unknown key: \"%s\"", key);
return 1;
}
static struct bar *
parse_bar(FILE *fp)
{
char line[2048];
struct block *block = NULL;
struct block global = {};
struct bar *bar;
bar = calloc(1, sizeof(struct bar));
if (!bar)
return NULL;
while (fgets(line, sizeof(line), fp) != NULL) {
int len = strlen(line);
if (line[len - 1] != '\n') {
error("line \"%s\" is not terminated by a newline", line);
goto free;
}
line[len - 1] = '\0';
switch (*line) {
/* Comment or empty line? */
case '#':
case '\0':
break;
/* Section? */
case '[':
/* Finalize previous block */
if (block)
block_setup(block);
block = add_block(bar);
if (!block)
goto free;
/* Init the block with default settings (if any) */
memcpy(block, &global, sizeof(struct block));
if (parse_section(line, block->default_props.name, sizeof(block->default_props.name)))
goto free;
bdebug(block, "new block");
break;
/* Property? */
case 'a' ... 'z':
if (!block) {
debug("parsing global properties");
block = &global;
}
if (parse_property(line, &block->default_props, false))
goto free;
break;
/* Syntax error */
default:
error("malformated line: %s", line);
goto free;
}
}
/* Finalize the last block */
if (block)
block_setup(block);
return bar;
free:
free(bar->blocks);
free(bar);
return NULL;
}
static struct bar *
try_parse(const char *path, bool *found)
{
struct bar *bar = NULL;
bool noent = false;
FILE *fp = fopen(path, "r");
debug("try file %s", path);
if (!fp) {
if (errno == ENOENT && found)
noent = true;
else
errorx("fopen");
} else {
bar = parse_bar(fp);
if (fclose(fp))
errorx("fclose");
}
if (found)
*found = !noent;
return bar;
}
struct bar *
ini_load(const char *inifile)
{
const char * const home = getenv("HOME");
const char * const xdg_home = getenv("XDG_CONFIG_HOME");
const char * const xdg_dirs = getenv("XDG_CONFIG_DIRS");
char buf[PATH_MAX];
struct bar *bar;
bool found;
/* command line config file? */
if (inifile)
return try_parse(inifile, NULL);
/* user config file? */
if (home) {
if (xdg_home)
snprintf(buf, PATH_MAX, "%s/i3blocks/config", xdg_home);
else
snprintf(buf, PATH_MAX, "%s/.config/i3blocks/config", home);
bar = try_parse(buf, &found);
if (found)
return bar;
snprintf(buf, PATH_MAX, "%s/.i3blocks.conf", home);
bar = try_parse(buf, &found);
if (found)
return bar;
}
/* system config file? */
if (xdg_dirs)
snprintf(buf, PATH_MAX, "%s/i3blocks/config", xdg_dirs);
else
snprintf(buf, PATH_MAX, "%s/xdg/i3blocks/config", SYSCONFDIR);
bar = try_parse(buf, &found);
if (found)
return bar;
snprintf(buf, PATH_MAX, "%s/i3blocks.conf", SYSCONFDIR);
return try_parse(buf, NULL);
}

91
packages/i3blocks-gaps/src/io.c
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/*
* io.c - non-blocking I/O operations
* Copyright (C) 2015 Vivien Didelot
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#define _GNU_SOURCE /* for F_SETSIG */
#include <fcntl.h>
#include <unistd.h>
#include "log.h"
int
io_signal(int fd, int sig)
{
int flags;
/* Assign the signal for this file descriptor */
if (fcntl(fd, F_SETSIG, sig) == -1) {
errorx("failed to set signal %d on fd %d", sig, fd);
return 1;
}
/* Set owner process that is to receive "I/O possible" signal */
if (fcntl(fd, F_SETOWN, getpid()) == -1) {
errorx("failed to set process as owner of fd %d", fd);
return 1;
}
flags = fcntl(fd, F_GETFL);
if (flags == -1) {
errorx("failed to get flags of fd %d", fd);
return 1;
}
/* Enable "I/O possible" signaling and make I/O nonblocking */
if (fcntl(fd, F_SETFL, flags | O_ASYNC | O_NONBLOCK) == -1) {
errorx("failed to enable I/O signaling for fd %d", fd);
return 1;
}
return 0;
}
static ssize_t
read_nonblock(int fd, char *buf, size_t size)
{
ssize_t nr;
nr = read(fd, buf, size);
if (nr == -1) {
if (errno == EAGAIN) {
/* no more reading */
return 0;
}
errorx("read from %d", fd);
return -1;
}
/* Note read(2) returns 0 for end-of-pipe */
return nr;
}
int
io_readline(int fd, char *buffer, size_t size)
{
int nr = 0;
char c;
while (nr < size && read_nonblock(fd, &c, 1) > 0) {
buffer[nr++] = c;
if (c == '\n')
break;
}
return nr;
}

156
packages/i3blocks-gaps/src/json.c
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/*
* json.c - basic JSON parsing and printing
* Copyright (C) 2014 Vivien Didelot
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <ctype.h>
#include <stdbool.h>
#include <stddef.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "bar.h"
#include "block.h"
static inline bool
is_number(const char *str)
{
char *end;
strtoul(str, &end, 10);
/* not a valid number if end is not a null character */
return !(*str == 0 || *end != 0);
}
static inline void
escape(const char *str)
{
fprintf(stdout, "\"");
while (*str) {
switch (*str) {
case '"':
case '\\':
fprintf(stdout, "\\%c", *str);
break;
default:
fprintf(stdout, "%c", *str);
}
str++;
}
fprintf(stdout, "\"");
}
static void
print_prop(const char *key, const char *value, int flags)
{
/* Only print i3bar-specific properties */
if (!(flags & PROP_I3BAR))
return;
if (!*value)
return;
fprintf(stdout, ",\"%s\":", key);
/* Print as-is (except strings which must be escaped) */
if (flags & PROP_STRING && flags & PROP_NUMBER && is_number(value))
fprintf(stdout, "%s", value);
else if (flags & PROP_STRING)
escape(value);
else
fprintf(stdout, "%s", value);
}
static void
print_block(struct block *block)
{
#define PRINT(_name, _size, _flags) \
print_prop(#_name, block->updated_props._name, _flags); \
fprintf(stdout, ",{\"\":\"\"");
PROPERTIES(PRINT);
fprintf(stdout, "}");
#undef PRINT
}
/*
* Parse the <json> input for the key <name> and store the start of its value
* into <start> and its size into <len>.
*
* <start> set to 0 means that the key was not present.
*/
void
json_parse(const char *json, const char *name, int *start, int *len)
{
const size_t keylen = strlen(name) + 2;
char key[keylen + 1];
snprintf(key, sizeof(key), "\"%s\"", name);
*start = *len = 0;
char *here = strstr(json, key);
if (here) {
here += keylen + 1;
/* skip pre-value whitespace */
while (isspace(*here))
here++;
if (*here == '"') {
/* string */
here++;
*start = here - json;
while (*here && *here != '"')
*len += 1, here++;
/* invalidate on incomplete string */
if (*here != '"')
*start = 0;
} else {
/* number */
*start = here - json;
while (isdigit(*here++))
*len += 1;
}
}
}
void
json_print_bar(struct bar *bar)
{
fprintf(stdout, ",[{\"full_text\":\"\"}");
for (int i = 0; i < bar->num; ++i) {
struct block *block = bar->blocks + i;
/* full_text is the only mandatory key, skip if empty */
if (!*FULL_TEXT(block)) {
bdebug(block, "no text to display, skipping");
continue;
}
print_block(block);
}
fprintf(stdout, "]\n");
fflush(stdout);
}

82
packages/i3blocks-gaps/src/main.c
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/*
* i3blocks.c - main entry point, load the config and start the scheduler
* Copyright (C) 2014 Vivien Didelot
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <getopt.h>
#include <stdio.h>
#include "ini.h"
#include "log.h"
#include "sched.h"
#ifndef VERSION
#define VERSION "unknown"
#endif
unsigned log_level = LOG_NORMAL;
static void
start(void)
{
fprintf(stdout, "{\"version\":1,\"click_events\":true}\n[[]\n");
fflush(stdout);
}
int
main(int argc, char *argv[])
{
char *inifile = NULL;
struct bar *bar;
int c;
while (c = getopt(argc, argv, "c:vhV"), c != -1) {
switch (c) {
case 'c':
inifile = optarg;
break;
case 'v':
log_level++;
break;
case 'h':
printf("Usage: %s [-c <configfile>] [-h] [-V]\n", argv[0]);
return 0;
case 'V':
printf("i3blocks " VERSION " © 2014 Vivien Didelot and contributors\n");
return 0;
default:
error("Try '%s -h' for more information.", argv[0]);
return 1;
}
}
debug("log level %u", log_level);
bar = ini_load(inifile);
if (!bar) {
error("Try '%s -h' for more information.", argv[0]);
return 1;
}
if (sched_init(bar))
return 1;
start();
sched_start(bar);
//stop();
return 0;
}

221
packages/i3blocks-gaps/src/sched.c
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/*
* sched.c - scheduling of block updates (timeout, signal or click)
* Copyright (C) 2014 Vivien Didelot
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <errno.h>
#include <fcntl.h>
#include <signal.h>
#include <stdio.h>
#include <string.h>
#include <sys/time.h>
#include <sys/wait.h>
#include <unistd.h>
#include "bar.h"
#include "block.h"
#include "io.h"
#include "json.h"
#include "log.h"
static sigset_t set;
static int
gcd(int a, int b)
{
while (b != 0)
a %= b, a ^= b, b ^= a, a ^= b;
return a;
}
static unsigned int
longest_sleep(struct bar *bar)
{
unsigned int time = 0;
if (bar->num > 0 && bar->blocks->interval > 0)
time = bar->blocks->interval; /* first block's interval */
if (bar->num < 2)
return time;
/* The maximum sleep time is actually the GCD between all block intervals */
for (int i = 1; i < bar->num; ++i)
if ((bar->blocks + i)->interval > 0)
time = gcd(time, (bar->blocks + i)->interval);
return time;
}
static int
setup_timer(struct bar *bar)
{
const unsigned sleeptime = longest_sleep(bar);
if (!sleeptime) {
debug("no timer needed");
return 0;
}
struct itimerval itv = {
.it_value.tv_sec = sleeptime,
.it_interval.tv_sec = sleeptime,
};
if (setitimer(ITIMER_REAL, &itv, NULL) == -1) {
errorx("setitimer");
return 1;
}
debug("starting timer with interval of %d seconds", sleeptime);
return 0;
}
static int
setup_signals(void)
{
if (sigemptyset(&set) == -1) {
errorx("sigemptyset");
return 1;
}
#define ADD_SIG(_sig) \
if (sigaddset(&set, _sig) == -1) { errorx("sigaddset(%d)", _sig); return 1; }
/* Control signals */
ADD_SIG(SIGTERM);
ADD_SIG(SIGINT);
/* Timer signal */
ADD_SIG(SIGALRM);
/* Block updates (forks) */
ADD_SIG(SIGCHLD);
/* Deprecated signals */
ADD_SIG(SIGUSR1);
ADD_SIG(SIGUSR2);
/* Click signal */
ADD_SIG(SIGIO);
/* I/O Possible signal for persistent blocks */
ADD_SIG(SIGRTMIN);
/* Real-time signals for blocks */
for (int sig = SIGRTMIN + 1; sig <= SIGRTMAX; ++sig) {
debug("provide signal %d (%s)", sig, strsignal(sig));
ADD_SIG(sig);
}
#undef ADD_SIG
/* Block signals for which we are interested in waiting */
if (sigprocmask(SIG_SETMASK, &set, NULL) == -1) {
errorx("sigprocmask");
return 1;
}
return 0;
}
int
sched_init(struct bar *bar)
{
if (setup_signals())
return 1;
if (setup_timer(bar))
return 1;
/* Setup event I/O for stdin (clicks) */
if (!isatty(STDIN_FILENO))
if (io_signal(STDIN_FILENO, SIGIO))
return 1;
return 0;
}
void
sched_start(struct bar *bar)
{
siginfo_t siginfo;
int sig;
/*
* Initial display (for static blocks and loading labels),
* and first forks (for commands with an interval).
*/
json_print_bar(bar);
bar_poll_timed(bar);
while (1) {
sig = sigwaitinfo(&set, &siginfo);
if (sig == -1) {
/* Hiding the bar may interrupt this system call */
if (errno == EINTR)
continue;
errorx("sigwaitinfo");
break;
}
debug("received signal %d (%s)", sig, strsignal(sig));
if (sig == SIGTERM || sig == SIGINT)
break;
/* Interval tick? */
if (sig == SIGALRM) {
bar_poll_outdated(bar);
/* Child(ren) dead? */
} else if (sig == SIGCHLD) {
bar_poll_exited(bar);
json_print_bar(bar);
/* Block clicked? */
} else if (sig == SIGIO) {
bar_poll_clicked(bar);
/* Persistent block ready to be read? */
} else if (sig == SIGRTMIN) {
bar_poll_readable(bar, siginfo.si_fd);
json_print_bar(bar);
/* Blocks signaled? */
} else if (sig > SIGRTMIN && sig <= SIGRTMAX) {
bar_poll_signaled(bar, sig - SIGRTMIN);
/* Deprecated signals? */
} else if (sig == SIGUSR1 || sig == SIGUSR2) {
error("SIGUSR{1,2} are deprecated, ignoring.");
} else debug("unhandled signal %d", sig);
}
/*
* Unblock signals (so subsequent syscall can be interrupted)
* and wait for child processes termination.
*/
if (sigprocmask(SIG_UNBLOCK, &set, NULL) == -1)
errorx("sigprocmask");
while (waitpid(-1, NULL, 0) > 0)
continue;
debug("quit scheduling");
}
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