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https://github.com/git/git
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![Christopher Warrington](/assets/img/avatar_default.png)
We advertise that the bisect log can be corrected in your editor before being fed to "git bisect replay", but some editors may turn the line endings to CRLF. Update the parser of the input lines so that the CR at the end of the line gets ignored. Were anyone to intentionally be using terms/revs with embedded CRs, replaying such bisects will no longer work with this change. I suspect that this is incredibly rare. Signed-off-by: Christopher Warrington <chwarr@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
351 lines
8.1 KiB
Bash
Executable file
351 lines
8.1 KiB
Bash
Executable file
#!/bin/sh
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USAGE='[help|start|bad|good|new|old|terms|skip|next|reset|visualize|view|replay|log|run]'
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LONG_USAGE='git bisect help
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print this long help message.
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git bisect start [--term-{old,good}=<term> --term-{new,bad}=<term>]
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[--no-checkout] [<bad> [<good>...]] [--] [<pathspec>...]
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reset bisect state and start bisection.
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git bisect (bad|new) [<rev>]
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mark <rev> a known-bad revision/
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a revision after change in a given property.
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git bisect (good|old) [<rev>...]
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mark <rev>... known-good revisions/
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revisions before change in a given property.
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git bisect terms [--term-good | --term-bad]
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show the terms used for old and new commits (default: bad, good)
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git bisect skip [(<rev>|<range>)...]
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mark <rev>... untestable revisions.
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git bisect next
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find next bisection to test and check it out.
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git bisect reset [<commit>]
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finish bisection search and go back to commit.
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git bisect (visualize|view)
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show bisect status in gitk.
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git bisect replay <logfile>
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replay bisection log.
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git bisect log
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show bisect log.
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git bisect run <cmd>...
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use <cmd>... to automatically bisect.
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Please use "git help bisect" to get the full man page.'
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OPTIONS_SPEC=
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. git-sh-setup
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_x40='[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]'
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_x40="$_x40$_x40$_x40$_x40$_x40$_x40$_x40$_x40"
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TERM_BAD=bad
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TERM_GOOD=good
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bisect_head()
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{
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if test -f "$GIT_DIR/BISECT_HEAD"
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then
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echo BISECT_HEAD
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else
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echo HEAD
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fi
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}
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bisect_autostart() {
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test -s "$GIT_DIR/BISECT_START" || {
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gettextln "You need to start by \"git bisect start\"" >&2
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if test -t 0
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then
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# TRANSLATORS: Make sure to include [Y] and [n] in your
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# translation. The program will only accept English input
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# at this point.
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gettext "Do you want me to do it for you [Y/n]? " >&2
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read yesno
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case "$yesno" in
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[Nn]*)
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exit ;;
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esac
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bisect_start
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else
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exit 1
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fi
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}
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}
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bisect_start() {
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git bisect--helper --bisect-start $@ || exit
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#
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# Change state.
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# In case of mistaken revs or checkout error, or signals received,
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# "bisect_auto_next" below may exit or misbehave.
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# We have to trap this to be able to clean up using
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# "bisect_clean_state".
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#
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trap 'git bisect--helper --bisect-clean-state' 0
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trap 'exit 255' 1 2 3 15
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#
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# Check if we can proceed to the next bisect state.
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#
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get_terms
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bisect_auto_next
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trap '-' 0
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}
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bisect_skip() {
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all=''
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for arg in "$@"
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do
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case "$arg" in
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*..*)
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revs=$(git rev-list "$arg") || die "$(eval_gettext "Bad rev input: \$arg")" ;;
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*)
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revs=$(git rev-parse --sq-quote "$arg") ;;
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esac
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all="$all $revs"
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done
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eval bisect_state 'skip' $all
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}
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bisect_state() {
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bisect_autostart
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state=$1
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git bisect--helper --check-and-set-terms $state $TERM_GOOD $TERM_BAD || exit
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get_terms
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case "$#,$state" in
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0,*)
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die "Please call 'bisect_state' with at least one argument." ;;
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1,"$TERM_BAD"|1,"$TERM_GOOD"|1,skip)
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bisected_head=$(bisect_head)
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rev=$(git rev-parse --verify "$bisected_head") ||
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die "$(eval_gettext "Bad rev input: \$bisected_head")"
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git bisect--helper --bisect-write "$state" "$rev" "$TERM_GOOD" "$TERM_BAD" || exit
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git bisect--helper --check-expected-revs "$rev" ;;
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2,"$TERM_BAD"|*,"$TERM_GOOD"|*,skip)
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shift
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hash_list=''
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for rev in "$@"
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do
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sha=$(git rev-parse --verify "$rev^{commit}") ||
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die "$(eval_gettext "Bad rev input: \$rev")"
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hash_list="$hash_list $sha"
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done
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for rev in $hash_list
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do
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git bisect--helper --bisect-write "$state" "$rev" "$TERM_GOOD" "$TERM_BAD" || exit
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done
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git bisect--helper --check-expected-revs $hash_list ;;
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*,"$TERM_BAD")
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die "$(eval_gettext "'git bisect \$TERM_BAD' can take only one argument.")" ;;
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*)
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usage ;;
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esac
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bisect_auto_next
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}
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bisect_auto_next() {
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git bisect--helper --bisect-next-check $TERM_GOOD $TERM_BAD && bisect_next || :
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}
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bisect_next() {
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case "$#" in 0) ;; *) usage ;; esac
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bisect_autostart
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git bisect--helper --bisect-next-check $TERM_GOOD $TERM_BAD $TERM_GOOD|| exit
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# Perform all bisection computation, display and checkout
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git bisect--helper --next-all $(test -f "$GIT_DIR/BISECT_HEAD" && echo --no-checkout)
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res=$?
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# Check if we should exit because bisection is finished
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if test $res -eq 10
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then
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bad_rev=$(git show-ref --hash --verify refs/bisect/$TERM_BAD)
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bad_commit=$(git show-branch $bad_rev)
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echo "# first $TERM_BAD commit: $bad_commit" >>"$GIT_DIR/BISECT_LOG"
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exit 0
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elif test $res -eq 2
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then
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echo "# only skipped commits left to test" >>"$GIT_DIR/BISECT_LOG"
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good_revs=$(git for-each-ref --format="%(objectname)" "refs/bisect/$TERM_GOOD-*")
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for skipped in $(git rev-list refs/bisect/$TERM_BAD --not $good_revs)
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do
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skipped_commit=$(git show-branch $skipped)
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echo "# possible first $TERM_BAD commit: $skipped_commit" >>"$GIT_DIR/BISECT_LOG"
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done
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exit $res
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fi
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# Check for an error in the bisection process
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test $res -ne 0 && exit $res
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return 0
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}
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bisect_visualize() {
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git bisect--helper --bisect-next-check $TERM_GOOD $TERM_BAD fail || exit
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if test $# = 0
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then
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if test -n "${DISPLAY+set}${SESSIONNAME+set}${MSYSTEM+set}${SECURITYSESSIONID+set}" &&
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type gitk >/dev/null 2>&1
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then
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set gitk
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else
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set git log
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fi
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else
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case "$1" in
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git*|tig) ;;
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-*) set git log "$@" ;;
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*) set git "$@" ;;
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esac
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fi
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eval '"$@"' --bisect -- $(cat "$GIT_DIR/BISECT_NAMES")
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}
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bisect_replay () {
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file="$1"
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test "$#" -eq 1 || die "$(gettext "No logfile given")"
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test -r "$file" || die "$(eval_gettext "cannot read \$file for replaying")"
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git bisect--helper --bisect-reset || exit
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oIFS="$IFS" IFS="$IFS$(printf '\015')"
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while read git bisect command rev
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do
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test "$git $bisect" = "git bisect" || test "$git" = "git-bisect" || continue
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if test "$git" = "git-bisect"
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then
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rev="$command"
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command="$bisect"
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fi
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get_terms
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git bisect--helper --check-and-set-terms "$command" "$TERM_GOOD" "$TERM_BAD" || exit
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get_terms
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case "$command" in
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start)
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cmd="bisect_start $rev"
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eval "$cmd" ;;
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"$TERM_GOOD"|"$TERM_BAD"|skip)
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git bisect--helper --bisect-write "$command" "$rev" "$TERM_GOOD" "$TERM_BAD" || exit;;
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terms)
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git bisect--helper --bisect-terms $rev || exit;;
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*)
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die "$(gettext "?? what are you talking about?")" ;;
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esac
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done <"$file"
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IFS="$oIFS"
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bisect_auto_next
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}
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bisect_run () {
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git bisect--helper --bisect-next-check $TERM_GOOD $TERM_BAD fail || exit
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test -n "$*" || die "$(gettext "bisect run failed: no command provided.")"
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while true
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do
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command="$@"
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eval_gettextln "running \$command"
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"$@"
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res=$?
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# Check for really bad run error.
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if [ $res -lt 0 -o $res -ge 128 ]
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then
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eval_gettextln "bisect run failed:
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exit code \$res from '\$command' is < 0 or >= 128" >&2
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exit $res
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fi
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# Find current state depending on run success or failure.
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# A special exit code of 125 means cannot test.
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if [ $res -eq 125 ]
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then
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state='skip'
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elif [ $res -gt 0 ]
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then
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state="$TERM_BAD"
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else
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state="$TERM_GOOD"
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fi
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# We have to use a subshell because "bisect_state" can exit.
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( bisect_state $state >"$GIT_DIR/BISECT_RUN" )
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res=$?
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cat "$GIT_DIR/BISECT_RUN"
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if sane_grep "first $TERM_BAD commit could be any of" "$GIT_DIR/BISECT_RUN" \
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>/dev/null
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then
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gettextln "bisect run cannot continue any more" >&2
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exit $res
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fi
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if [ $res -ne 0 ]
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then
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eval_gettextln "bisect run failed:
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'bisect_state \$state' exited with error code \$res" >&2
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exit $res
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fi
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if sane_grep "is the first $TERM_BAD commit" "$GIT_DIR/BISECT_RUN" >/dev/null
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then
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gettextln "bisect run success"
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exit 0;
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fi
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done
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}
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bisect_log () {
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test -s "$GIT_DIR/BISECT_LOG" || die "$(gettext "We are not bisecting.")"
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cat "$GIT_DIR/BISECT_LOG"
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}
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get_terms () {
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if test -s "$GIT_DIR/BISECT_TERMS"
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then
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{
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read TERM_BAD
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read TERM_GOOD
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} <"$GIT_DIR/BISECT_TERMS"
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fi
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}
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case "$#" in
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0)
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usage ;;
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*)
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cmd="$1"
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get_terms
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shift
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case "$cmd" in
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help)
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git bisect -h ;;
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start)
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bisect_start "$@" ;;
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bad|good|new|old|"$TERM_BAD"|"$TERM_GOOD")
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bisect_state "$cmd" "$@" ;;
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skip)
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bisect_skip "$@" ;;
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next)
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# Not sure we want "next" at the UI level anymore.
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bisect_next "$@" ;;
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visualize|view)
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bisect_visualize "$@" ;;
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reset)
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git bisect--helper --bisect-reset "$@" ;;
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replay)
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bisect_replay "$@" ;;
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log)
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bisect_log ;;
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run)
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bisect_run "$@" ;;
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terms)
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git bisect--helper --bisect-terms "$@" || exit;;
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*)
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usage ;;
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esac
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esac
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