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authorJohn Keeping <john@keeping.me.uk>2013-01-26 16:40:06 -0800
committerJunio C Hamano <gitster@pobox.com>2013-01-27 18:33:16 -0800
commit62957bea0c7637ae1db4452fc165c59d9408585b (patch)
tree223b59e3ba2339401b62cbb079be6a6eeba2a6ee /git-mergetool--lib.sh
parent88d3406ad77dbab4d8ea76756822531228332b1b (diff)
downloadgit-62957bea0c7637ae1db4452fc165c59d9408585b.tar.gz
mergetool--lib: don't call "exit" in setup_tool
This will make it easier to use setup_tool in places where we expect that the selected tool will not support the current mode. We need to introduce a new return code for setup_tool to differentiate between the case of "the selected tool is invalid" and "the selected tool is not a built-in" since we must call setup_tool when a custom 'merge.<tool>.path' is configured for a built-in tool but avoid failing when the configured tool is not a built-in. Signed-off-by: John Keeping <john@keeping.me.uk> Signed-off-by: David Aguilar <davvid@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'git-mergetool--lib.sh')
-rw-r--r--git-mergetool--lib.sh23
1 files changed, 20 insertions, 3 deletions
diff --git a/git-mergetool--lib.sh b/git-mergetool--lib.sh
index aa38bd18bf..f1bb372b6b 100644
--- a/git-mergetool--lib.sh
+++ b/git-mergetool--lib.sh
@@ -58,7 +58,11 @@ setup_tool () {
. "$mergetools/defaults"
if ! test -f "$mergetools/$tool"
then
- return 1
+ # Use a special return code for this case since we want to
+ # source "defaults" even when an explicit tool path is
+ # configured since the user can use that to override the
+ # default path in the scriptlet.
+ return 2
fi
# Load the redefined functions
@@ -67,11 +71,11 @@ setup_tool () {
if merge_mode && ! can_merge
then
echo "error: '$tool' can not be used to resolve merges" >&2
- exit 1
+ return 1
elif diff_mode && ! can_diff
then
echo "error: '$tool' can only be used to resolve merges" >&2
- exit 1
+ return 1
fi
return 0
}
@@ -101,6 +105,19 @@ run_merge_tool () {
# Bring tool-specific functions into scope
setup_tool "$1"
+ exitcode=$?
+ case $exitcode in
+ 0)
+ :
+ ;;
+ 2)
+ # The configured tool is not a built-in tool.
+ test -n "$merge_tool_path" || return 1
+ ;;
+ *)
+ return $exitcode
+ ;;
+ esac
if merge_mode
then