Customize git command for installations that lack certain commands.

When the platform lacks certain git subcommands, omit them from the
list of subcommands that are available from "git" wrapper.

Noticed by Geert Bosch.
Signed-off-by: NJunio C Hamano <junkio@cox.net>

Makefile

@@ -122,6 +122,8 @@ PROGRAMS = \
 # Backward compatibility -- to be removed after 1.0
 PROGRAMS += git-ssh-pull git-ssh-push
 
+GIT_LIST_TWEAK =
+
 PYMODULES = \
 	gitMergeCommon.py
 
@@ -131,6 +133,8 @@ endif
 
 ifdef WITH_SEND_EMAIL
 	SCRIPT_PERL += git-send-email.perl
+else
+	GIT_LIST_TWEAK += -e '/^send-email$$/d'
 endif
 
 LIB_FILE=libgit.a
@@ -282,7 +286,8 @@ all:
 git: git.sh Makefile
 	rm -f $@+ $@
 	sed -e '1s|#!.*/sh|#!$(SHELL_PATH)|' \
-	    -e 's/@@GIT_VERSION@@/$(GIT_VERSION)/g' <$@.sh >$@+
+	    -e 's/@@GIT_VERSION@@/$(GIT_VERSION)/g' \
+	    $(GIT_LIST_TWEAK) <$@.sh >$@+
 	chmod +x $@+
 	mv $@+ $@
 

git.sh

@@ -16,17 +16,50 @@ esac
 
 echo "Usage: git COMMAND [OPTIONS] [TARGET]"
 if [ -n "$cmd" ]; then
-    echo " git command '$cmd' not found: commands are:"
-else
-    echo " git commands are:"
+    echo "git command '$cmd' not found."
 fi
+echo "git commands are:"
 
-cat <<\EOF
-    add apply archimport bisect branch checkout cherry clone
-    commit count-objects cvsimport diff fetch format-patch
-    fsck-cache get-tar-commit-id init-db log ls-remote octopus
-    pack-objects parse-remote patch-id prune pull push rebase
-    relink rename repack request-pull reset resolve revert
-    send-email shortlog show-branch status tag verify-tag
-    whatchanged
+fmt <<\EOF | sed -e 's/^/    /'
+add
+apply
+archimport
+bisect
+branch
+checkout
+cherry
+clone
+commit
+count-objects
+cvsimport
+diff
+fetch
+format-patch
+fsck-objects
+get-tar-commit-id
+init-db
+log
+ls-remote
+octopus
+pack-objects
+parse-remote
+patch-id
+prune
+pull
+push
+rebase
+relink
+rename
+repack
+request-pull
+reset
+resolve
+revert
+send-email
+shortlog
+show-branch
+status
+tag
+verify-tag
+whatchanged
 EOF