* [PATCH] completion: bash: improve alias loop detection
@ 2020-11-12 22:34 Felipe Contreras
2020-11-17 18:56 ` Junio C Hamano
0 siblings, 1 reply; 3+ messages in thread
From: Felipe Contreras @ 2020-11-12 22:34 UTC (permalink / raw)
To: git; +Cc: Junio C Hamano, SZEDER Gábor, Felipe Contreras
It is possible for the name of an alias to end with the name of another
alias, in which case the code will incorrectly detect a loop.
We can fix that by adding an extra space between words.
Suggested-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
---
contrib/completion/git-completion.bash | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/contrib/completion/git-completion.bash b/contrib/completion/git-completion.bash
index ce0dc1e0f8..cd2a02bafd 100644
--- a/contrib/completion/git-completion.bash
+++ b/contrib/completion/git-completion.bash
@@ -1121,16 +1121,17 @@ __git_pretty_aliases ()
# __git_aliased_command requires 1 argument
__git_aliased_command ()
{
- local cur=$1 list word cmdline
+ local cur=$1 last list word cmdline
while [[ -n "$cur" ]]; do
- if [[ "$list" == *"$cur "* ]]; then
+ if [[ "$list" == *" $cur "* ]]; then
# loop detected
return
fi
cmdline=$(__git config --get "alias.$cur")
- list="$cur $list"
+ list=" $cur $list"
+ last=$cur
cur=
for word in $cmdline; do
@@ -1154,7 +1155,7 @@ __git_aliased_command ()
done
done
- cur="${list%% *}"
+ cur=$last
if [[ "$cur" != "$1" ]]; then
echo "$cur"
fi
--
2.29.2
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH] completion: bash: improve alias loop detection
2020-11-12 22:34 [PATCH] completion: bash: improve alias loop detection Felipe Contreras
@ 2020-11-17 18:56 ` Junio C Hamano
2020-11-17 19:52 ` Felipe Contreras
0 siblings, 1 reply; 3+ messages in thread
From: Junio C Hamano @ 2020-11-17 18:56 UTC (permalink / raw)
To: Felipe Contreras; +Cc: git, SZEDER Gábor
Felipe Contreras <felipe.contreras@gmail.com> writes:
> It is possible for the name of an alias to end with the name of another
> alias, in which case the code will incorrectly detect a loop.
>
> We can fix that by adding an extra space between words.
>
> Suggested-by: SZEDER Gábor <szeder.dev@gmail.com>
> Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
> ---
> contrib/completion/git-completion.bash | 9 +++++----
> 1 file changed, 5 insertions(+), 4 deletions(-)
OK. An extra local variable would not hurt and makes the code
easier to read.
Will queue.
> diff --git a/contrib/completion/git-completion.bash b/contrib/completion/git-completion.bash
> index ce0dc1e0f8..cd2a02bafd 100644
> --- a/contrib/completion/git-completion.bash
> +++ b/contrib/completion/git-completion.bash
> @@ -1121,16 +1121,17 @@ __git_pretty_aliases ()
> # __git_aliased_command requires 1 argument
> __git_aliased_command ()
> {
> - local cur=$1 list word cmdline
> + local cur=$1 last list word cmdline
>
> while [[ -n "$cur" ]]; do
> - if [[ "$list" == *"$cur "* ]]; then
> + if [[ "$list" == *" $cur "* ]]; then
> # loop detected
> return
> fi
>
> cmdline=$(__git config --get "alias.$cur")
> - list="$cur $list"
> + list=" $cur $list"
> + last=$cur
> cur=
>
> for word in $cmdline; do
> @@ -1154,7 +1155,7 @@ __git_aliased_command ()
> done
> done
>
> - cur="${list%% *}"
> + cur=$last
> if [[ "$cur" != "$1" ]]; then
> echo "$cur"
> fi
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH] completion: bash: improve alias loop detection
2020-11-17 18:56 ` Junio C Hamano
@ 2020-11-17 19:52 ` Felipe Contreras
0 siblings, 0 replies; 3+ messages in thread
From: Felipe Contreras @ 2020-11-17 19:52 UTC (permalink / raw)
To: Junio C Hamano; +Cc: Git, SZEDER Gábor
On Tue, Nov 17, 2020 at 12:57 PM Junio C Hamano <gitster@pobox.com> wrote:
>
> Felipe Contreras <felipe.contreras@gmail.com> writes:
>
> > It is possible for the name of an alias to end with the name of another
> > alias, in which case the code will incorrectly detect a loop.
> >
> > We can fix that by adding an extra space between words.
> >
> > Suggested-by: SZEDER Gábor <szeder.dev@gmail.com>
> > Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
> > ---
> > contrib/completion/git-completion.bash | 9 +++++----
> > 1 file changed, 5 insertions(+), 4 deletions(-)
>
> OK. An extra local variable would not hurt and makes the code
> easier to read.
It was there on v2. Which now may be a more reasonable sequence.
--
Felipe Contreras
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2020-11-17 19:52 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-11-12 22:34 [PATCH] completion: bash: improve alias loop detection Felipe Contreras
2020-11-17 18:56 ` Junio C Hamano
2020-11-17 19:52 ` Felipe Contreras
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).