git-help: add "help.format" config variable.

This config variable makes it possible to choose the default format
used to display help. This format will be used only if no option
like -a|--all|-i|--info|-m|--man|-w|--web is passed to "git-help".

The following values are possible for this variable:

	- "man"  --> "man" program is used
	- "info" --> "info" program is used
	- "web"  --> "git-browse-help" is used

By default we still show help using "man".

This patch also adds -m|--man command line option to use "man"
to allow overriding the "help.format" configuration variable.

Note that this patch also revert some recent changes in
"git-browse-help" because they prevented to look for config
variables in the global configuration file.

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 1 insertions, 6 deletions

diff --git a/git-sh-setup.sh b/git-sh-setup.sh
index b366761b97..270d559297 100755
--- a/git-sh-setup.sh
+++ b/git-sh-setup.sh
@@ -124,13 +124,8 @@ get_author_ident_from_commit () {
 
 # Make sure we are in a valid repository of a vintage we understand,
 # if we require to be in a git repository.
-if test -n "$NONGIT_OK"
+if test -z "$NONGIT_OK"
 then
-	if git rev-parse --git-dir >/dev/null 2>&1
-	then
-		: ${GIT_DIR=.git}
-	fi
-else
 	if [ -z "$SUBDIRECTORY_OK" ]
 	then
 		: ${GIT_DIR=.git}