[PATCH] _make: Better option handling of GNU make

["Jun T." <takimoto-j@xxxxxxxxxxxxxxxxx>]

Take care of mutually exclusive options.
Add _description using $state_descr.
Add completions for --debug=flag.
Fix typo (pointed out by Daniel Shahaf).

---
 Completion/Unix/Command/_make |   76 ++++++++++++++++++++++++-----------------
 1 file changed, 44 insertions(+), 32 deletions(-)

diff --git a/Completion/Unix/Command/_make b/Completion/Unix/Command/_make
index 355c68e..0c5371d 100644
--- a/Completion/Unix/Command/_make
+++ b/Completion/Unix/Command/_make
@@ -148,7 +148,7 @@ _make-findBasedir () {
 _make() {
 
   local prev="$words[CURRENT-1]" file expl tmp is_gnu dir incl match
-  local context state line
+  local context state state_descr line
   local -a option_specs
   local -A TARGETS VARIABLES opt_args
   local ret=1
@@ -159,35 +159,35 @@ _make() {
   then
     incl="(-|)include"
     option_specs=(
-      {-B,--always-make}'[Unconditionally make all targets]'
-      '*'{-C,--directory=}'[change directory first]:directory:->dir'
-      '-d[Print lots of debug information]'
-      '--debug=-[Print various types of debug information]:FLAGS'
-      {-e,--environment-overrides}'[Environment variables override makefiles]'
-      '--eval=-[Evaluate STRING as a makefile statement]:STRING'
-      {-f,--file=,--makefile=}'[Read FILE as a makefile]:file:->file'
-      '-h[Print this message and exit]'
-      {-i,--ignore-errors}'[Ignore errors from recipes]'
-      '*'{-I,--include-dir=}'[Search DIRECTORY for included makefiles]:directory:->dir'
-      {-j,--jobs=}'[Allow N jobs at once; infinite jobs with no arg]:number of jobs'
-      {-k,--keep-going}"[Keep going when some targets can't be made]"
-      {-l,--load-average=,--max-load}"[Don't start multiple jobs unless load is below N]:load"
-      {-L,--check-symlink-times}'[Use the latest mtime between symlinks and target]'
-      {-n,--just-print,--dry-run,--recon}"[Don't actually run any recipe; just print them]"
-      '*'{-o,--old-file=,--assume-old=}"[Consider FILE to be very old and don't remake it]:file not to remake:->file"
-      {-p,--print-data-base}'[Print makes internal database]'
-      {-q,--question}'[Run no recipe; exit status says if up to date]'
-      {-r,--no-builtin-rules}'[Disable the built-in implicit rules]'
-      {-R,--no-builtin-variables}'[Disable the built-in variable settings]'
-      {-s,--silent,--quiet}"[Don't echo recipes]"
-      {-S,--no-keep-going,--stop}'[Turns off -k]'
-      {-t,--touch}'[Touch targets instead of remaking them]'
-      {-v,--version}'[Print the version number of make and exit]'
-      {-w,--print-directory}'[Print the current directory]'
-      '--no-print-directory[Turn off -w, even if it was turned on implicitly]'
-      '*'{-W,--what-if=,--new-file=,--asume-new=}'[Consider FILE to be infinitely new]:file to treat as modified:->file'
-      '--warn-undefined-variables[Warn when an undefined variable is referenced]'
-      '--warn-undefined-functions[Warn when an undefined user function is called]'
+      '(-B --always-make)'{-B,--always-make}'[unconditionally make all targets]'
+      '*'{-C,--directory=}'[change directory first]:change to directory:->dir'
+      '-d[print lots of debug information]'
+      '--debug=-[print various types of debug information]:debug options:->debug'
+      '(-e --environment-overrides)'{-e,--environment-overrides}'[environment variables override makefiles]'
+      '--eval=-[evaluate STRING as a makefile statement]:STRING'
+      '(-f --file --makefile)'{-f,--file=,--makefile=}'[read FILE as a makefile]:makefile:->file'
+      '(- *)'{-h,--help}'[print help message and exit]'
+      '(-i --ignore-errors)'{-i,--ignore-errors}'[ignore errors from recipes]'
+      '*'{-I,--include-dir=}'[search DIRECTORY for included makefiles]:search path for included makefile:->dir'
+      '(-j --jobs)'{-j,--jobs=}'[allow N jobs at once; infinite jobs with no arg]:number of jobs'
+      '(-k --keep-going)'{-k,--keep-going}"[keep going when some targets can't be made]"
+      '(-l --load-average --max-load)'{-l,--load-average=,--max-load}"[don't start multiple jobs unless load is below N]:load"
+      '(-L --check-symlik-times)'{-L,--check-symlink-times}'[use the latest mtime between symlinks and target]'
+      '(-n --just-print --dry-run --recon)'{-n,--just-print,--dry-run,--recon}"[don't actually run any recipe; just print them]"
+      '*'{-o,--old-file=,--assume-old=}"[consider FILE to be very old and don't remake it]:file not to remake:->file"
+      '(-p --print-data-base)'{-p,--print-data-base}'[print makes internal database]'
+      '(-q --question)'{-q,--question}'[run no recipe; exit status says if up to date]'
+      '(-r --no-builtin-rules)'{-r,--no-builtin-rules}'[disable the built-in implicit rules]'
+      '(-R --no-builtin-variables)'{-R,--no-builtin-variables}'[disable the built-in variable settings]'
+      '(-s --silent --quiet)'{-s,--silent,--quiet}"[don't echo recipes]"
+      '(-S --no-keep-going --stop)'{-S,--no-keep-going,--stop}'[turns off -k]'
+      '(-t --touch)'{-t,--touch}'[touch targets instead of remaking them]'
+      '(- *)'{-v,--version}'[print the version number of make and exit]'
+      '(-w --print-directory)'{-w,--print-directory}'[print the current directory]'
+      '--no-print-directory[turn off -w, even if it was turned on implicitly]'
+      '*'{-W,--what-if=,--new-file=,--assume-new=}'[consider FILE to be infinitely new]:file to treat as modified:->file'
+      '--warn-undefined-variables[warn when an undefined variable is referenced]'
+      '--warn-undefined-functions[warn when an undefined user function is called]'
     )
   else
     # Basic make options only.
@@ -206,11 +206,23 @@ _make() {
 
   case $state in
     (dir)
-    _files -W ${(q)$(_make-findBasedir ${words[1,CURRENT-1]})} -/ && ret=0
+    _description directories expl "$state_descr"
+    _files "$expl[@]" -W ${(q)$(_make-findBasedir ${words[1,CURRENT-1]})} -/ && ret=0
     ;;
 
     (file)
-    _files -W ${(q)$(_make-findBasedir $words)} && ret=0
+    _description files expl "$state_descr"
+    _files "$expl[@]" -W ${(q)$(_make-findBasedir $words)} && ret=0
+    ;;
+
+    (debug)
+    _values -s , 'debug options' \
+      '(b v i j m)a[all debugging output]' \
+      'b[basic debugging output]' \
+      '(b)v[one level above basic]' \
+      '(b)i[describe implicit rule searches (implies b)]' \
+      'j[show details on invocation of subcommands]' \
+      'm[enable debugging while remaking makefiles]' && ret=0
     ;;
 
     (target)
-- 
1.7.9.6 (Apple Git-31.1)