git / git-bisect.sh

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Christian Couder 5413812 
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Anders Kaseorg 6b87ce2 

Christian Couder 38a47fd 






Christian Couder 243a60f 


Fredrik Kuivinen d025524 
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Junio C Hamano 4c55068 
Linus Torvalds 8cc6a08 
Johannes Schinde… ce32660 


Linus Torvalds 8cc6a08 
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Linus Torvalds 8cc6a08 

















Christian Couder 634f246 
Linus Torvalds 8cc6a08 
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Johannes Schinde… ce32660 

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Christian Couder 634f246 


Christian Couder 9d0cd91 
Christian Couder f3a186f 
Christian Couder 634f246 















Linus Torvalds 8cc6a08 

Christian Couder 634f246 
Linus Torvalds 8cc6a08 
Christian Couder 823ea12 
Christian Couder 38a47fd 







Christian Couder de52f5a 
Christian Couder 38a47fd 
Christian Couder d3e54c8 
Christian Couder 38a47fd 



Christian Couder 8fe26f4 
Christian Couder 38a47fd 


Christian Couder 634f246 
Christian Couder 38a47fd 



Christian Couder 737c74e 



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Christian Couder 8fe26f4 
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Christian Couder ba963de 













Christian Couder de52f5a 
Christian Couder ba963de 
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Christian Couder ba963de 


Christian Couder 38a47fd 
Christian Couder ba963de 

Linus Torvalds 8cc6a08 

Christian Couder 55624f9 


Christian Couder 737c74e 
Christian Couder 55624f9 




Christian Couder ba963de 
Johannes Schinde… f454cdc 
Miklos Vajna 6c98c05 
Christian Couder 55624f9 

Christian Couder c9c4e2d 














Christian Couder ee2314f 







Christian Couder de52f5a 
Christian Couder ee2314f 


Christian Couder 1a66a48 
Christian Couder ee2314f 

Christian Couder 155fc79 
Linus Torvalds 8cc6a08 
Christian Couder 155fc79 






Christian Couder c9c4e2d 

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Christian Couder 155fc79 
Christian Couder d3e54c8 
Christian Couder e338907 
Christian Couder 155fc79 
Christian Couder a179a30 
Christian Couder e338907 
Christian Couder d3e54c8 

Christian Couder c9c4e2d 

Christian Couder e338907 

Junio C Hamano cc9f24d 

Linus Torvalds 8cc6a08 
Christian Couder 97e1c51 


Linus Torvalds 8cc6a08 
Junio C Hamano 0a5280a 


Junio C Hamano 6fecf19 
Junio C Hamano 0a5280a 














Francis Moreau e5d3afd 

Junio C Hamano 0a5280a 


Linus Torvalds 8cc6a08 
Junio C Hamano 0a5280a 
Christian Couder 823ea12 
Junio C Hamano 0a5280a 







Linus Torvalds 8cc6a08 



Junio C Hamano 434d036 
Linus Torvalds 8cc6a08 


Christian Couder 8fe26f4 
Linus Torvalds 8cc6a08 
Junio C Hamano 0a5280a 

Christian Couder 0871984 

Christian Couder 5a1d31c 
Junio C Hamano 0a5280a 
Christian Couder 5a1d31c 

Junio C Hamano 0a5280a 
Christian Couder 5a1d31c 



Linus Torvalds 8cc6a08 

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Junio C Hamano 235997c 


Jeff King c4e4644 





Junio C Hamano 235997c 







Christian Couder fc13aa3 
Junio C Hamano cc9f24d 

Linus Torvalds 8cc6a08 
Christian Couder 823ea12 
Christian Couder fce0499 


Linus Torvalds 8cc6a08 
Christian Couder 823ea12 
Anders Kaseorg 6b87ce2 

Linus Torvalds 8cc6a08 
Christian Couder 8fe26f4 
Linus Torvalds 8cc6a08 

SZEDER Gábor 3bb8cf8 





Junio C Hamano e204de2 

Christian Couder 38a47fd 
Christian Couder 947a604 
Christian Couder 634f246 
Christian Couder 947a604 

Christian Couder 823ea12 
Christian Couder 947a604 
Christian Couder c9c4e2d 

Christian Couder 823ea12 


Christian Couder 9d0cd91 
Christian Couder 823ea12 


Christian Couder 38a47fd 

Junio C Hamano e204de2 
SZEDER Gábor 2c7c387 
Christian Couder 737c74e 
Junio C Hamano e204de2 
Miklos Vajna 6c98c05 
Junio C Hamano e204de2 
Miklos Vajna 6c98c05 




Junio C Hamano e204de2 

Junio C Hamano e9a45d7 
Christian Couder 737c74e 


Junio C Hamano e204de2 
Christian Couder 737c74e 
Junio C Hamano e204de2 


Linus Torvalds 8cc6a08 

Christian Couder a17c410 
Christian Couder 8302012 

Christian Couder a17c410 












Christian Couder 155fc79 
Christian Couder 71b0251 



Christian Couder 155fc79 
Christian Couder a17c410 
Christian Couder 155fc79 
Christian Couder a17c410 

Christian Couder 155fc79 

Christian Couder a17c410 



Junio C Hamano e1622bf 
Christian Couder 71b0251 




Christian Couder a17c410 

Christian Couder 155fc79 
Christian Couder a17c410 


Junio C Hamano e1622bf 
Christian Couder a17c410 






SZEDER Gábor 412ff73 



Christian Couder a17c410 
Linus Torvalds 8cc6a08 






Christian Couder 243a60f 

Linus Torvalds 8cc6a08 

Christian Couder ee2314f 
Christian Couder 155fc79 
Christian Couder ee2314f 

Linus Torvalds 8cc6a08 


Junio C Hamano 235997c 
Junio C Hamano cc9f24d 
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Junio C Hamano e204de2 


SZEDER Gábor 412ff73 
Christian Couder a17c410 

Linus Torvalds 8cc6a08 


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#!/bin/sh

USAGE='[help|start|bad|good|skip|next|reset|visualize|replay|log|run]'
LONG_USAGE='git bisect help
        print this long help message.
git bisect start [<bad> [<good>...]] [--] [<pathspec>...]
        reset bisect state and start bisection.
git bisect bad [<rev>]
        mark <rev> a known-bad revision.
git bisect good [<rev>...]
        mark <rev>... known-good revisions.
git bisect skip [(<rev>|<range>)...]
        mark <rev>... untestable revisions.
git bisect next
        find next bisection to test and check it out.
git bisect reset [<commit>]
        finish bisection search and go back to commit.
git bisect visualize
        show bisect status in gitk.
git bisect replay <logfile>
        replay bisection log.
git bisect log
        show bisect log.
git bisect run <cmd>...
        use <cmd>... to automatically bisect.

Please use "git help bisect" to get the full man page.'

OPTIONS_SPEC=
. git-sh-setup
require_work_tree

_x40='[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]'
_x40="$_x40$_x40$_x40$_x40$_x40$_x40$_x40$_x40"

bisect_autostart() {
	test -s "$GIT_DIR/BISECT_START" || {
		echo >&2 'You need to start by "git bisect start"'
		if test -t 0
		then
			echo >&2 -n 'Do you want me to do it for you [Y/n]? '
			read yesno
			case "$yesno" in
			[Nn]*)
				exit ;;
			esac
			bisect_start
		else
			exit 1
		fi
	}
}

bisect_start() {
	#
	# Verify HEAD.
	#
	head=$(GIT_DIR="$GIT_DIR" git symbolic-ref -q HEAD) ||
	head=$(GIT_DIR="$GIT_DIR" git rev-parse --verify HEAD) ||
	die "Bad HEAD - I need a HEAD"

	#
	# Check if we are bisecting.
	#
	start_head=''
	if test -s "$GIT_DIR/BISECT_START"
	then
		# Reset to the rev from where we started.
		start_head=$(cat "$GIT_DIR/BISECT_START")
		git checkout "$start_head" -- || exit
	else
		# Get rev from where we start.
		case "$head" in
		refs/heads/*|$_x40)
			# This error message should only be triggered by
			# cogito usage, and cogito users should understand
			# it relates to cg-seek.
			[ -s "$GIT_DIR/head-name" ] &&
				die "won't bisect on seeked tree"
			start_head="${head#refs/heads/}"
			;;
		*)
			die "Bad HEAD - strange symbolic ref"
			;;
		esac
	fi

	#
	# Get rid of any old bisect state.
	#
	bisect_clean_state || exit

	#
	# Check for one bad and then some good revisions.
	#
	has_double_dash=0
	for arg; do
	    case "$arg" in --) has_double_dash=1; break ;; esac
	done
	orig_args=$(git rev-parse --sq-quote "$@")
	bad_seen=0
	eval=''
	while [ $# -gt 0 ]; do
	    arg="$1"
	    case "$arg" in
	    --)
		shift
		break
		;;
	    *)
		rev=$(git rev-parse -q --verify "$arg^{commit}") || {
		    test $has_double_dash -eq 1 &&
		        die "'$arg' does not appear to be a valid revision"
		    break
		}
		case $bad_seen in
		0) state='bad' ; bad_seen=1 ;;
		*) state='good' ;;
		esac
		eval="$eval bisect_write '$state' '$rev' 'nolog'; "
		shift
		;;
	    esac
	done

	#
	# Change state.
	# In case of mistaken revs or checkout error, or signals received,
	# "bisect_auto_next" below may exit or misbehave.
	# We have to trap this to be able to clean up using
	# "bisect_clean_state".
	#
	trap 'bisect_clean_state' 0
	trap 'exit 255' 1 2 3 15

	#
	# Write new start state.
	#
	echo "$start_head" >"$GIT_DIR/BISECT_START" &&
	git rev-parse --sq-quote "$@" >"$GIT_DIR/BISECT_NAMES" &&
	eval "$eval" &&
	echo "git bisect start$orig_args" >>"$GIT_DIR/BISECT_LOG" || exit
	#
	# Check if we can proceed to the next bisect state.
	#
	bisect_auto_next

	trap '-' 0
}

bisect_write() {
	state="$1"
	rev="$2"
	nolog="$3"
	case "$state" in
		bad)		tag="$state" ;;
		good|skip)	tag="$state"-"$rev" ;;
		*)		die "Bad bisect_write argument: $state" ;;
	esac
	git update-ref "refs/bisect/$tag" "$rev" || exit
	echo "# $state: $(git show-branch $rev)" >>"$GIT_DIR/BISECT_LOG"
	test -n "$nolog" || echo "git bisect $state $rev" >>"$GIT_DIR/BISECT_LOG"
}

is_expected_rev() {
	test -f "$GIT_DIR/BISECT_EXPECTED_REV" &&
	test "$1" = $(cat "$GIT_DIR/BISECT_EXPECTED_REV")
}

check_expected_revs() {
	for _rev in "$@"; do
		if ! is_expected_rev "$_rev"; then
			rm -f "$GIT_DIR/BISECT_ANCESTORS_OK"
			rm -f "$GIT_DIR/BISECT_EXPECTED_REV"
			return
		fi
	done
}

bisect_skip() {
        all=''
	for arg in "$@"
	do
	    case "$arg" in
            *..*)
                revs=$(git rev-list "$arg") || die "Bad rev input: $arg" ;;
            *)
                revs=$(git rev-parse --sq-quote "$arg") ;;
	    esac
            all="$all $revs"
        done
        eval bisect_state 'skip' $all
}

bisect_state() {
	bisect_autostart
	state=$1
	case "$#,$state" in
	0,*)
		die "Please call 'bisect_state' with at least one argument." ;;
	1,bad|1,good|1,skip)
		rev=$(git rev-parse --verify HEAD) ||
			die "Bad rev input: HEAD"
		bisect_write "$state" "$rev"
		check_expected_revs "$rev" ;;
	2,bad|*,good|*,skip)
		shift
		eval=''
		for rev in "$@"
		do
			sha=$(git rev-parse --verify "$rev^{commit}") ||
				die "Bad rev input: $rev"
			eval="$eval bisect_write '$state' '$sha'; "
		done
		eval "$eval"
		check_expected_revs "$@" ;;
	*,bad)
		die "'git bisect bad' can take only one argument." ;;
	*)
		usage ;;
	esac
	bisect_auto_next
}

bisect_next_check() {
	missing_good= missing_bad=
	git show-ref -q --verify refs/bisect/bad || missing_bad=t
	test -n "$(git for-each-ref "refs/bisect/good-*")" || missing_good=t

	case "$missing_good,$missing_bad,$1" in
	,,*)
		: have both good and bad - ok
		;;
	*,)
		# do not have both but not asked to fail - just report.
		false
		;;
	t,,good)
		# have bad but not good.  we could bisect although
		# this is less optimum.
		echo >&2 'Warning: bisecting only with a bad commit.'
		if test -t 0
		then
			printf >&2 'Are you sure [Y/n]? '
			read yesno
			case "$yesno" in [Nn]*) exit 1 ;; esac
		fi
		: bisect without good...
		;;
	*)
		THEN=''
		test -s "$GIT_DIR/BISECT_START" || {
			echo >&2 'You need to start by "git bisect start".'
			THEN='then '
		}
		echo >&2 'You '$THEN'need to give me at least one good' \
			'and one bad revisions.'
		echo >&2 '(You can use "git bisect bad" and' \
			'"git bisect good" for that.)'
		exit 1 ;;
	esac
}

bisect_auto_next() {
	bisect_next_check && bisect_next || :
}

bisect_next() {
	case "$#" in 0) ;; *) usage ;; esac
	bisect_autostart
	bisect_next_check good

	# Perform all bisection computation, display and checkout
	git bisect--helper --next-all
	res=$?

        # Check if we should exit because bisection is finished
	test $res -eq 10 && exit 0

	# Check for an error in the bisection process
	test $res -ne 0 && exit $res

	return 0
}

bisect_visualize() {
	bisect_next_check fail

	if test $# = 0
	then
		if test -n "${DISPLAY+set}${SESSIONNAME+set}${MSYSTEM+set}${SECURITYSESSIONID+set}" &&
		   type gitk >/dev/null 2>&1; then
			set gitk
		else
			set git log
		fi
	else
		case "$1" in
		git*|tig) ;;
		-*)	set git log "$@" ;;
		*)	set git "$@" ;;
		esac
	fi

	eval '"$@"' --bisect -- $(cat "$GIT_DIR/BISECT_NAMES")
}

bisect_reset() {
	test -s "$GIT_DIR/BISECT_START" || {
		echo "We are not bisecting."
		return
	}
	case "$#" in
	0) branch=$(cat "$GIT_DIR/BISECT_START") ;;
	1) git rev-parse --quiet --verify "$1^{commit}" > /dev/null ||
	       die "'$1' is not a valid commit"
	   branch="$1" ;;
	*)
	    usage ;;
	esac
	if git checkout "$branch" -- ; then
		bisect_clean_state
	else
		die "Could not check out original HEAD '$branch'." \
				"Try 'git bisect reset <commit>'."
	fi
}

bisect_clean_state() {
	# There may be some refs packed during bisection.
	git for-each-ref --format='%(refname) %(objectname)' refs/bisect/\* |
	while read ref hash
	do
		git update-ref -d $ref $hash || exit
	done
	rm -f "$GIT_DIR/BISECT_EXPECTED_REV" &&
	rm -f "$GIT_DIR/BISECT_ANCESTORS_OK" &&
	rm -f "$GIT_DIR/BISECT_LOG" &&
	rm -f "$GIT_DIR/BISECT_NAMES" &&
	rm -f "$GIT_DIR/BISECT_RUN" &&
	# Cleanup head-name if it got left by an old version of git-bisect
	rm -f "$GIT_DIR/head-name" &&

	rm -f "$GIT_DIR/BISECT_START"
}

bisect_replay () {
	test "$#" -eq 1 || die "No logfile given"
	test -r "$1" || die "cannot read $1 for replaying"
	bisect_reset
	while read git bisect command rev
	do
		test "$git $bisect" = "git bisect" -o "$git" = "git-bisect" || continue
		if test "$git" = "git-bisect"; then
			rev="$command"
			command="$bisect"
		fi
		case "$command" in
		start)
			cmd="bisect_start $rev"
			eval "$cmd" ;;
		good|bad|skip)
			bisect_write "$command" "$rev" ;;
		*)
			die "?? what are you talking about?" ;;
		esac
	done <"$1"
	bisect_auto_next
}

bisect_run () {
    bisect_next_check fail

    while true
    do
      echo "running $@"
      "$@"
      res=$?

      # Check for really bad run error.
      if [ $res -lt 0 -o $res -ge 128 ]; then
	  echo >&2 "bisect run failed:"
	  echo >&2 "exit code $res from '$@' is < 0 or >= 128"
	  exit $res
      fi

      # Find current state depending on run success or failure.
      # A special exit code of 125 means cannot test.
      if [ $res -eq 125 ]; then
	  state='skip'
      elif [ $res -gt 0 ]; then
	  state='bad'
      else
	  state='good'
      fi

      # We have to use a subshell because "bisect_state" can exit.
      ( bisect_state $state > "$GIT_DIR/BISECT_RUN" )
      res=$?

      cat "$GIT_DIR/BISECT_RUN"

      if sane_grep "first bad commit could be any of" "$GIT_DIR/BISECT_RUN" \
		> /dev/null; then
	  echo >&2 "bisect run cannot continue any more"
	  exit $res
      fi

      if [ $res -ne 0 ]; then
	  echo >&2 "bisect run failed:"
	  echo >&2 "'bisect_state $state' exited with error code $res"
	  exit $res
      fi

      if sane_grep "is the first bad commit" "$GIT_DIR/BISECT_RUN" > /dev/null; then
	  echo "bisect run success"
	  exit 0;
      fi

    done
}

bisect_log () {
	test -s "$GIT_DIR/BISECT_LOG" || die "We are not bisecting."
	cat "$GIT_DIR/BISECT_LOG"
}

case "$#" in
0)
    usage ;;
*)
    cmd="$1"
    shift
    case "$cmd" in
    help)
        git bisect -h ;;
    start)
        bisect_start "$@" ;;
    bad|good)
        bisect_state "$cmd" "$@" ;;
    skip)
        bisect_skip "$@" ;;
    next)
        # Not sure we want "next" at the UI level anymore.
        bisect_next "$@" ;;
    visualize|view)
	bisect_visualize "$@" ;;
    reset)
        bisect_reset "$@" ;;
    replay)
	bisect_replay "$@" ;;
    log)
	bisect_log ;;
    run)
        bisect_run "$@" ;;
    *)
        usage ;;
    esac
esac
Tip: Filter by directory path e.g. /media app.js to search for public/media/app.js.
Tip: Use camelCasing e.g. ProjME to search for ProjectModifiedEvent.java.
Tip: Filter by extension type e.g. /repo .js to search for all .js files in the /repo directory.
Tip: Separate your search with spaces e.g. /ssh pom.xml to search for src/ssh/pom.xml.
Tip: Use ↑ and ↓ arrow keys to navigate and return to view the file.
Tip: You can also navigate files with Ctrl+j (next) and Ctrl+k (previous) and view the file with Ctrl+o.
Tip: You can also navigate files with Alt+j (next) and Alt+k (previous) and view the file with Alt+o.