b9ccc5e2b4
Finishing touches. * al/bisect-first-parent: bisect: add first-parent option to documentation
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] [--first-parent] [<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 git rev-parse --verify -q BISECT_HEAD > /dev/null
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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 $TERM_GOOD|| exit
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# Perform all bisection computation, display and checkout
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git bisect--helper --next-all
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res=$?
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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 tail
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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 $tail"
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eval "$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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