[PATCHv3 2/3] git-p4: fix handling of multi-word P4EDITOR

[Luke Diamand <luke@diamand.org>]

This teaches git-p4 to pass the P4EDITOR variable to the
shell for expansion, so that any command-line arguments are
correctly handled. Without this, git-p4 can only launch the
editor if P4EDITOR is solely the path to the binary, without
any arguments.

This also adjusts t9805, which relied on the previous behaviour.

Suggested-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Luke Diamand <luke@diamand.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
 git-p4.py                          | 2 +-
 t/t9805-git-p4-skip-submit-edit.sh | 2 +-
 t/t9820-git-p4-editor-handling.sh  | 1 -
 3 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/git-p4.py b/git-p4.py
index ff132b2..de06046 100755
--- a/git-p4.py
+++ b/git-p4.py
@@ -1220,7 +1220,7 @@ class P4Submit(Command, P4UserMap):
             editor = os.environ.get("P4EDITOR")
         else:
             editor = read_pipe("git var GIT_EDITOR").strip()
-        system([editor, template_file])
+        system(["sh", "-c", ('%s "$@"' % editor), editor, template_file])
 
         # If the file was not saved, prompt to see if this patch should
         # be skipped.  But skip this verification step if configured so.
diff --git a/t/t9805-git-p4-skip-submit-edit.sh b/t/t9805-git-p4-skip-submit-edit.sh
index 8931188..5fbf904 100755
--- a/t/t9805-git-p4-skip-submit-edit.sh
+++ b/t/t9805-git-p4-skip-submit-edit.sh
@@ -90,7 +90,7 @@ test_expect_success 'no config, edited' '
 		cd "$git" &&
 		echo line >>file1 &&
 		git commit -a -m "change 5" &&
-		P4EDITOR="$TRASH_DIRECTORY/ed.sh" &&
+		P4EDITOR="\"$TRASH_DIRECTORY/ed.sh\"" &&
 		export P4EDITOR &&
 		git p4 submit &&
 		p4 changes //depot/... >wc &&
diff --git a/t/t9820-git-p4-editor-handling.sh b/t/t9820-git-p4-editor-handling.sh
index af924bb..7026ef9 100755
--- a/t/t9820-git-p4-editor-handling.sh
+++ b/t/t9820-git-p4-editor-handling.sh
@@ -17,7 +17,6 @@ test_expect_success 'init depot' '
 	)
 '
 
-test_expect_failure 'EDITOR has options' '
 # Check that the P4EDITOR argument can be given command-line
 # options, which git-p4 will then pass through to the shell.
 test_expect_success 'EDITOR has options' '
-- 
2.4.1.502.gb11c5ab