users/1097: rehash style for external commands

ChangeLog

@@ -1,3 +1,8 @@
+2006-03-06  Peter Stephenson  <pws@csr.com>
+
+	* users/1097: Completion/Zsh/Type/_command_names,
+	Doc/Zsh/compsys.yo: rehash style for external commands.
+
 2006-03-03  Peter Stephenson  <p.w.stephenson@ntlworld.com>
 
 	* 22318: Src/builtin.c: uniquifying special arrays was broken.
@@ -9,7 +14,7 @@
 	* 22317: Src/builtins.c, Src/exec.c: exiting the shell from
 	code forked from within a function doesn't maintain the
 	exit status.
-	
+
 	* 22277, 22281 plus tweaks: Src/exec.c, Src/jobs.c, Src/signals.c,
 	Test/C03traps.ztst: standardize behaviour of using wait builtin
 	with trapped signals.

Completion/Zsh/Type/_command_names

@@ -6,6 +6,8 @@
 
 local args defs
 
+zstyle -t ":completion:${curcontext}:commands" rehash && rehash
+
 defs=(
   'commands:external command:compadd -k commands'
 )

Doc/Zsh/compsys.yo

@@ -2101,6 +2101,14 @@ expanded but only in command position.  If it is set to `tt(false)',
 regular aliases will never be expanded.   If it is set to `tt(always)',
 regular aliases will be expanded even if not in command position.
 )
+kindex(rehash, completion style)
+item(tt(rehash))(
+If this is set when completing external commands, the internal
+list (hash) of commands will be updated for each search by issuing
+the tt(rehash) command.  There is a speed penalty for this which
+is only likely to be noticeable when directories in the path have
+slow file access.
+)
 kindex(remote-access, completion style)
 item(tt(remote-access))(
 If set to tt(false), certain commands will be prevented from making