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

From: Luke Diamand <[email-masked]>
Date: Thu, 07 May 2015 20:27:58 +0100

On 07/05/15 19:11, Junio C Hamano wrote:
> Luke Diamand <[email-masked]> writes:
>
>
> 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.

On Linux:

$ export P4EDITOR="gvim -f"
$ p4 submit
-- works as you would hope --

$ export P4EDITOR="/home/lgd/My Programs/editor.sh"
$ p4 submit
sh: 1: /home/lgd/My: not found

$ export P4EDITOR="/home/lgd/My\ Programs/editor.sh"
-- works fine --

I don't know what happens on Windows. But I think the "sh -c" code would 
break on that platform, whereas the current code works fine (*)

Luke

(*) I should probably get a Windows test environment going somehow so I 
can check this stuff.

>
>>
>> Suggested-by: Jonathan Nieder <[email-masked]>
>> Signed-off-by: Luke Diamand <[email-masked]>
>> ---
>>   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 &&
>>   	(