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PATCH: _path_commands
- X-seq: zsh-workers 23782
- From: Clint Adams <clint@xxxxxxx>
- To: zsh-workers@xxxxxxxxxx
- Subject: PATCH: _path_commands
- Date: Sun, 19 Aug 2007 18:58:21 -0400
- Mail-followup-to: zsh-workers@xxxxxxxxxx
- Mailing-list: contact zsh-workers-help@xxxxxxxxxx; run by ezmlm
This is a slightly-rearranged version of _path_commands from R.Ramkumar,
to be used for completion commands with descriptions.
Index: Completion/Unix/Type/_path_commands
===================================================================
RCS file: Completion/Unix/Type/_path_commands
diff -N Completion/Unix/Type/_path_commands
--- /dev/null 1 Jan 1970 00:00:00 -0000
+++ Completion/Unix/Type/_path_commands 19 Aug 2007 22:36:51 -0000
@@ -0,0 +1,77 @@
+#autoload
+
+(( $+functions[_path_commands_caching_policy] )) ||
+_path_commands_caching_policy() {
+
+local oldp file
+typeset -a dbfiles
+
+# rebuild if cache is more than a week old
+oldp=( "$1"(Nmw+1) )
+(( $#oldp )) && return 0
+
+dbfiles=(/usr/share/man/index.(bt|db|dir|pag)(N) \
+ /usr/man/index.(bt|db|dir|pag)(N) \
+ /var/cache/man/index.(bt|db|dir|pag)(N) \
+ /var/catman/index.(bt|db|dir|pag)(N) \
+ /usr/share/man/*/whatis(N))
+
+for file in $dbfiles; do
+ [[ $file -nt $1 ]] && return 0
+done
+
+return 1
+}
+
+_path_commands() {
+local need_desc expl ret=1
+
+if zstyle -T ":completion:${curcontext}:" verbose; then
+ local update_policy first
+ if [[ $+_command_descriptions -eq 0 ]]; then
+ first=yes
+ typeset -A -g _command_descriptions
+ fi
+ zstyle -s ":completion:${curcontext}:" cache-policy update_policy
+ [[ -z "$update_policy" ]] && zstyle ":completion:${curcontext}:" \
+ cache-policy _path_commands_caching_policy
+ if ( [[ -n $first ]] || _cache_invalid command-descriptions ) && \
+ ! _retrieve_cache command-descriptions; then
+ local line
+ for line in "${(f)$(_call_program command-descriptions whatis -s 1 -r .\\\*\; whatis -s 6 -r .\\\* 2> /dev/null)}"; do
+ [[ -n ${line:#(#b)([^ ]#) #\([^ ]#\)( #\[[^ ]#\]|)[ -]#(*)} ]] && continue;
+ [[ -z $match[1] || -z $match[3] || -z ${${match[1]}:#*:*} ]] && continue;
+ _command_descriptions[$match[1]]=$match[3]
+ done
+ _store_cache command-descriptions _command_descriptions
+ fi
+
+ (( $#_command_descriptions )) && need_desc=yes
+fi
+
+if [[ -n $need_desc ]]; then
+ typeset -a dcmds descs cmds
+ local desc cmd sep
+ for cmd in ${(@)commands[(I)$PREFIX*]}; do
+ desc=$_command_descriptions[$cmd]
+ if [[ -z $desc ]]; then
+ cmds+=$cmd
+ else
+ dcmds+=$cmd
+ descs+="$cmd:$desc"
+ fi
+ done
+ zstyle -s ":completion:${curcontext}:" list-separator sep || sep=--
+ zformat -a descs " $sep " $descs
+ descs=("${(@r:COLUMNS-1:)descs}")
+ _wanted commands expl 'external command' \
+ compadd "$@" -ld descs -a dcmds && ret=0
+ _wanted commands expl 'external command' compadd "$@" -a cmds && ret=0
+else
+ _wanted commands expl 'external command' compadd "$@" -k commands && ret=0
+fi
+
+return $ret
+}
+
+_path_commands "$@"
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