[PATCH v2] zsh pidof completion

[Marko Myllynen <myllynen@redhat.com>]

Hi,

Below is zsh completions for the pidof(1) command tested with:

pidof from procps-ng 3.3.10

It would seem that pidof is Linux specific but if it's available for
other platforms then we could of course move it under Unix/Command (and
since ps(1) is horribly platform specific we'd need to handle different
ps(1) variants then).

This version now uses _sequence for -o as suggested by Daniel Shahaf.

It might also be nice to provide a generic _process_names type
completion like there's one now for _pids but I'll leave it for a
separate, future effort. _process_names would offer process names
instead of process IDs, there might few potential users for it in
the tree already (_killall, _lldb, and _pgrep).

---
 Completion/Linux/Command/_pidof | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)
 create mode 100644 Completion/Linux/Command/_pidof

diff --git a/Completion/Linux/Command/_pidof b/Completion/Linux/Command/_pidof
new file mode 100644
index 0000000..6361146
--- /dev/null
+++ b/Completion/Linux/Command/_pidof
@@ -0,0 +1,24 @@
+#compdef pidof
+
+local curcontext="$curcontext" state line expl ret=1
+typeset -A opt_args
+
+local exargs="-h --help -V --version"
+_arguments -C -s -w \
+  '(- *)'{-h,--help}'[display help information]' \
+  '(- *)'{-V,--version}'[print program version]' \
+  "(-s --single-shot $exargs)"{-s,--single-shot}'[return one PID only]' \
+  "(-c --check-root $exargs)"{-c,--check-root}'[omit processes with different root]' \
+  "(-x $exargs)"-x'[include shells running named scripts]' \
+  "($exargs)"\*{-o+,--omit-pid}'[omit processes with PIDs]:pids:_sequence -s , _pids' \
+  '*:process:->procnames' \
+  && return 0
+
+case $state in
+  procnames)
+    # Handle defunct processes and "avahi-daemon:"
+    _wanted values expl process compadd ${${${${${(@)${(f)"$(ps -N --ppid 2 -p 2 o args=)"}%% *}##*/}%:}#\[}%]} && ret=0
+  ;;
+esac
+
+return ret

Thanks,

-- 
Marko Myllynen