git/list[1] front-page[2] threads[3] people[4] search[5] about
 

Re: [RFC PATCH v3 2/9] Call git_rebase__interactive from run_specific_rebase

From
Junio C Hamano <gitster@pobox.com>
Date
Mar 22, 2018, 18:27 UTC
Message-ID
<xmqqpo3wklt2.fsf@gitster-ct.c.googlers.com>
In-Reply-To
<47b224af1c22900a69d0e292935f37a719b6a9f3.1521690197.git.wink@saville.com>
Wink Saville <wink@saville.com> writes:
Show 26 quoted lines
> Instead of indirectly invoking git_rebase__interactive this invokes
> it directly after sourcing.
>
> Signed-off-by: Wink Saville <wink@saville.com>
> ---
>  git-rebase--interactive.sh | 11 -----------
>  git-rebase.sh              | 11 +++++++++--
>  2 files changed, 9 insertions(+), 13 deletions(-)
>
> diff --git a/git-rebase--interactive.sh b/git-rebase--interactive.sh
> index 561e2660e..213d75f43 100644
> --- a/git-rebase--interactive.sh
> +++ b/git-rebase--interactive.sh
> @@ -740,15 +740,6 @@ get_missing_commit_check_level () {
>  	printf '%s' "$check_level" | tr 'A-Z' 'a-z'
>  }
>  
> -# The whole contents of this file is run by dot-sourcing it from
> -# inside a shell function.  It used to be that "return"s we see
> -# below were not inside any function, and expected to return
> -# to the function that dot-sourced us.
> -#
> -# However, older (9.x) versions of FreeBSD /bin/sh misbehave on such a
> -# construct and continue to run the statements that follow such a "return".
> -# As a work-around, we introduce an extra layer of a function
> -# here, and immediately call it after defining it.

We still enclose the whole thing (including the returns that are problematic for older FreeBSD shells) in a shell function, so it's not like we are dropping the workaround for these systems. It's just the caller of the function moved.

I think the removal of this large comment is justifiable, but the structure still needs a bit of explanation, especially given that the caller in git-rebase.sh needs to treat this scriptlet a bit differently from others.

If we were not in the (longer term) process of getting rid of git-rebase.sh, it might even make sense to port the same "dot-sourced scriptlet defines a shell function to be called, and the caller calls it after dot-sourcing it" pattern to other rebase backends, so that the calling side can be unified again to become something like:

	. git-rebase--$type
	git_rebase__$type
	ret=$?
Show 31 quoted lines
>  git_rebase__interactive () {
>  
>  case "$action" in
> @@ -1029,5 +1020,3 @@ fi
>  do_rest
>  
>  }
> -# ... and then we call the whole thing.
> -git_rebase__interactive
> diff --git a/git-rebase.sh b/git-rebase.sh
> index a1f6e5de6..c4ec7c21b 100755
> --- a/git-rebase.sh
> +++ b/git-rebase.sh
> @@ -196,8 +196,15 @@ run_specific_rebase () {
>  		export GIT_EDITOR
>  		autosquash=
>  	fi
> -	. git-rebase--$type
> -	ret=$?
> +	if test "$type" = interactive
> +	then
> +		. git-rebase--interactive
> +		git_rebase__interactive
> +		ret=$?
> +	else
> +		. git-rebase--$type
> +		ret=$?
> +	fi
>  	if test $ret -eq 0
>  	then
>  		finish_rebase
Previous: Wink SavilleNext: Wink Saville
Message 4 of 20 in “rebase-interactive:”
  1. 0/9 rebase-interactive:Wink Saville, Mar 22, 2018
  2. 1/9 Simplify pick_on_preserving_mergesWink Saville, Mar 22, 2018
  3. 2/9 Call git_rebase__interactive from run_specific_rebaseWink Saville, Mar 22, 2018
  4. Junio C HamanoMar 22, 2018
  5. Wink SavilleMar 22, 2018
  6. 2/9 rebase-interactive: Do not automatically run codeWink Saville, Mar 22, 2018
  7. Junio C HamanoMar 22, 2018
  8. Wink SavilleMar 22, 2018
  9. Junio C HamanoMar 23, 2018
  10. 3/9 Indent function git_rebase__interactiveWink Saville, Mar 22, 2018
  11. Johannes SchindelinMar 23, 2018
  12. 4/9 Extract functions out of git_rebase__interactiveWink Saville, Mar 22, 2018
  13. 5/9 Use new functions in git_rebase__interactiveWink Saville, Mar 22, 2018
  14. Johannes SchindelinMar 23, 2018
  15. Junio C HamanoMar 23, 2018
  16. Wink SavilleMar 23, 2018
  17. 6/9 Add and use git_rebase__interactive__preserve_mergesWink Saville, Mar 22, 2018
  18. 8/9 Remove unused code paths from git_rebase__interactive__preserve_mergesWink Saville, Mar 22, 2018
  19. 9/9 Remove merges_option and a blank lineWink Saville, Mar 22, 2018
  20. 7/9 Remove unused code paths from git_rebase__interactiveWink Saville, Mar 22, 2018

Read the whole thread, see it on lore, or plain text.

$ cat FOOTERMessages come from the public archive at lore.kernel.org/git, fetched every hour. The front page is chosen and written each morning by an AI editor and can be wrong; the threads themselves are the record. About and API. For agents: an MCP server at https://gitlist.dev/mcp, and any thread, story or person page as Markdown by adding .md to its URL (or sending Accept: text/markdown). Details in /llms.txt.