Re: [PATCH 2/2] git-p4: fix handling of multi-word P4EDITOR

[Junio C Hamano <gitster@pobox.com>]

Luke Diamand <luke@diamand.org> writes:

> 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.

Does the real Perforce, when spawning P4EDITOR, behave the same way?

If not, this patch would be breaking not just the expectation of
existing git-p4 users (which we cannot avoid and which we are
willing to do) but also breaking things for people who _will_ come
to us in the future, expecting that

	export P4EDITOR="/Users/me/My Programs/my-editor"

to work as they expect.  If they already have to do

	export P4EDITOR="'/Users/me/My Programs/my-editor'"

then there is no problem, but because I am not a P4EDITOR user, I am
merely double checking.

>
> Suggested-by: Jonathan Nieder <jrnieder@gmail.com>
> Signed-off-by: Luke Diamand <luke@diamand.org>
> ---
>  git-p4.py                         | 2 +-
>  t/t9820-git-p4-editor-handling.sh | 2 +-
>  2 files changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/git-p4.py b/git-p4.py
> index 41a77e6..ca6bb95 100755
> --- a/git-p4.py
> +++ b/git-p4.py
> @@ -1248,7 +1248,7 @@ 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 "$@"' % editor), editor, template_file])
>  
>          # If the file was not saved, prompt to see if this patch should
>          # be skipped.  But skip this verification step if configured so.
> diff --git a/t/t9820-git-p4-editor-handling.sh b/t/t9820-git-p4-editor-handling.sh
> index e0a3c52..c178bd7 100755
> --- a/t/t9820-git-p4-editor-handling.sh
> +++ b/t/t9820-git-p4-editor-handling.sh
> @@ -17,9 +17,9 @@ test_expect_success 'init depot' '
>  	)
>  '
>  
> -test_expect_failure 'EDITOR has options' '
>  # Check that the P4EDITOR argument can be given command-line
>  # options, which git-p4 will then pass through to the shell.
> +test_expect_success 'EDITOR has options' '
>  	git p4 clone --dest="$git" //depot &&
>  	test_when_finished cleanup_git &&
>  	(