https://github.com/koraa/defer.sh
Delay the execution of a programm with signals
https://github.com/koraa/defer.sh
Last synced: about 2 months ago
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Delay the execution of a programm with signals
- Host: GitHub
- URL: https://github.com/koraa/defer.sh
- Owner: koraa
- License: gpl-3.0
- Created: 2013-09-12T00:16:28.000Z (over 11 years ago)
- Default Branch: master
- Last Pushed: 2013-09-12T10:44:03.000Z (over 11 years ago)
- Last Synced: 2025-01-30T18:23:25.073Z (4 months ago)
- Language: Shell
- Size: 125 KB
- Stars: 1
- Watchers: 3
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: COPYING
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README
# Defer.sh
## NAME
defer - Delay the execution of a programm with signals
## INVOKE
defer timeout script
## DESCRIPTIION
On the first call, a defer creates a fork
that runs the script after the _timeout_.
Each successive call to defer delays the execution of the _script_.
Please note, that these calls are not delaying the invocation by
a specific duration. Think of it more like of a keepalive:
If _defer_ has not been called since _timeout_, the _script_ will
be executed.
Also note, that each defer is identified by all its argumeents
(more precise: "$0 $@").
This means, that each ooof the following calls are completely individual:
```bash
defer 0.1 "echo a" "echo b"
defer 0.2 "echo a" "echo b"
defer 0.2 "echo a" "echo b"
```
## EXAMPLES
My motivation for writing this, was to display mmmy tmux status bar
only when holding down a key, so I added this to my config::
```bash
bind -nr ^ run-shell -b "defer 0.15 'tmux set -g status off' 'tmux set -g status on' 2>/dev/null >/dev/null"
```
This means: While circumflex is pressed invoke the comand given in regular
intervals.
## VERION
defer.sh version 0.0.1 from 09/12/2013.
## AUTHOR
defer.sh has been written by Karolin Varner .
## REPORTING BUGS
You can file bug reports and feature requests on github:
https://github.com/koraa/defer.sh/pulls
## TODO
* Options: nofork, tmpdir, signature, tmpfile, hashf
* Accumulate mode
* Timeout mode (force delay between invocations)
* Signal sources: SIGUSR1, fifo, pipe
* On-defer-block
* On-start-block
* Expire file
* Query
* Version info in script
* Support --help/-h (inject manpage?)
* Silent mode for commands
## COPYING
Copyright © 2013 Free Software Foundation, Inc. License GPLv3+:
GNU GPL version 3 or later .
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.