mirror of
https://github.com/git/git.git
synced 2024-11-24 18:33:43 +08:00
11d62145b9
In a shell snippet meant to be sourced by other shell scripts, an
opening #! line does more harm than good.
The harm:
- When the shell library is sourced, the interpreter and options from
the #! line are not used. Specifying a particular shell can
confuse the reader into thinking it is safe for the shell library
to rely on idiosyncrasies of that shell.
- Using #! instead of a plain comment drops a helpful visual clue
that this is a shell library and not a self-contained script.
- Tools such as lintian can use a #! line to tell when an
installation script has failed by forgetting to set a script
executable. This check does not work if shell libraries also start
with a #! line.
The good:
- Text editors notice the #! line and use it for syntax highlighting
if you try to edit the installed scripts (without ".sh" suffix) in
place.
The use of the #! for file type detection is not needed because Git's
shell libraries are meant to be edited in source form (with ".sh"
suffix). Replace the opening #! lines with comments.
This involves tweaking the test harness's valgrind support to find
shell libraries by looking for "# " in the first line instead of "#!"
(see v1.7.6-rc3~7, 2011-06-17).
Suggested by Russ Allbery through lintian. Thanks to Jeff King and
Clemens Buchacher for further analysis.
Tested by searching for non-executable scripts with #! line:
find . -name .git -prune -o -type f -not -executable |
while read file
do
read line <"$file"
case $line in
'#!'*)
echo "$file"
;;
esac
done
The only remaining scripts found are templates for shell scripts
(unimplemented.sh, wrap-for-bin.sh) and sample input used in tests
(t/t4034/perl/{pre,post}).
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
154 lines
3.1 KiB
Bash
154 lines
3.1 KiB
Bash
# This shell script fragment is sourced by git-rebase to implement
|
|
# its merge-based non-interactive mode that copes well with renamed
|
|
# files.
|
|
#
|
|
# Copyright (c) 2010 Junio C Hamano.
|
|
#
|
|
|
|
prec=4
|
|
|
|
read_state () {
|
|
onto_name=$(cat "$state_dir"/onto_name) &&
|
|
end=$(cat "$state_dir"/end) &&
|
|
msgnum=$(cat "$state_dir"/msgnum)
|
|
}
|
|
|
|
continue_merge () {
|
|
test -d "$state_dir" || die "$state_dir directory does not exist"
|
|
|
|
unmerged=$(git ls-files -u)
|
|
if test -n "$unmerged"
|
|
then
|
|
echo "You still have unmerged paths in your index"
|
|
echo "did you forget to use git add?"
|
|
die "$resolvemsg"
|
|
fi
|
|
|
|
cmt=`cat "$state_dir/current"`
|
|
if ! git diff-index --quiet --ignore-submodules HEAD --
|
|
then
|
|
if ! git commit --no-verify -C "$cmt"
|
|
then
|
|
echo "Commit failed, please do not call \"git commit\""
|
|
echo "directly, but instead do one of the following: "
|
|
die "$resolvemsg"
|
|
fi
|
|
if test -z "$GIT_QUIET"
|
|
then
|
|
printf "Committed: %0${prec}d " $msgnum
|
|
fi
|
|
echo "$cmt $(git rev-parse HEAD^0)" >> "$state_dir/rewritten"
|
|
else
|
|
if test -z "$GIT_QUIET"
|
|
then
|
|
printf "Already applied: %0${prec}d " $msgnum
|
|
fi
|
|
fi
|
|
test -z "$GIT_QUIET" &&
|
|
GIT_PAGER='' git log --format=%s -1 "$cmt"
|
|
|
|
# onto the next patch:
|
|
msgnum=$(($msgnum + 1))
|
|
echo "$msgnum" >"$state_dir/msgnum"
|
|
}
|
|
|
|
call_merge () {
|
|
cmt="$(cat "$state_dir/cmt.$1")"
|
|
echo "$cmt" > "$state_dir/current"
|
|
hd=$(git rev-parse --verify HEAD)
|
|
cmt_name=$(git symbolic-ref HEAD 2> /dev/null || echo HEAD)
|
|
msgnum=$(cat "$state_dir/msgnum")
|
|
eval GITHEAD_$cmt='"${cmt_name##refs/heads/}~$(($end - $msgnum))"'
|
|
eval GITHEAD_$hd='$onto_name'
|
|
export GITHEAD_$cmt GITHEAD_$hd
|
|
if test -n "$GIT_QUIET"
|
|
then
|
|
GIT_MERGE_VERBOSITY=1 && export GIT_MERGE_VERBOSITY
|
|
fi
|
|
test -z "$strategy" && strategy=recursive
|
|
eval 'git-merge-$strategy' $strategy_opts '"$cmt^" -- "$hd" "$cmt"'
|
|
rv=$?
|
|
case "$rv" in
|
|
0)
|
|
unset GITHEAD_$cmt GITHEAD_$hd
|
|
return
|
|
;;
|
|
1)
|
|
git rerere $allow_rerere_autoupdate
|
|
die "$resolvemsg"
|
|
;;
|
|
2)
|
|
echo "Strategy: $strategy failed, try another" 1>&2
|
|
die "$resolvemsg"
|
|
;;
|
|
*)
|
|
die "Unknown exit code ($rv) from command:" \
|
|
"git-merge-$strategy $cmt^ -- HEAD $cmt"
|
|
;;
|
|
esac
|
|
}
|
|
|
|
finish_rb_merge () {
|
|
move_to_original_branch
|
|
if test -s "$state_dir"/rewritten
|
|
then
|
|
git notes copy --for-rewrite=rebase <"$state_dir"/rewritten
|
|
if test -x "$GIT_DIR"/hooks/post-rewrite
|
|
then
|
|
"$GIT_DIR"/hooks/post-rewrite rebase <"$state_dir"/rewritten
|
|
fi
|
|
fi
|
|
say All done.
|
|
}
|
|
|
|
case "$action" in
|
|
continue)
|
|
read_state
|
|
continue_merge
|
|
while test "$msgnum" -le "$end"
|
|
do
|
|
call_merge "$msgnum"
|
|
continue_merge
|
|
done
|
|
finish_rb_merge
|
|
return
|
|
;;
|
|
skip)
|
|
read_state
|
|
git rerere clear
|
|
msgnum=$(($msgnum + 1))
|
|
while test "$msgnum" -le "$end"
|
|
do
|
|
call_merge "$msgnum"
|
|
continue_merge
|
|
done
|
|
finish_rb_merge
|
|
return
|
|
;;
|
|
esac
|
|
|
|
mkdir -p "$state_dir"
|
|
echo "$onto_name" > "$state_dir/onto_name"
|
|
write_basic_state
|
|
|
|
msgnum=0
|
|
for cmt in `git rev-list --reverse --no-merges "$revisions"`
|
|
do
|
|
msgnum=$(($msgnum + 1))
|
|
echo "$cmt" > "$state_dir/cmt.$msgnum"
|
|
done
|
|
|
|
echo 1 >"$state_dir/msgnum"
|
|
echo $msgnum >"$state_dir/end"
|
|
|
|
end=$msgnum
|
|
msgnum=1
|
|
|
|
while test "$msgnum" -le "$end"
|
|
do
|
|
call_merge "$msgnum"
|
|
continue_merge
|
|
done
|
|
|
|
finish_rb_merge
|