]>
Commit | Line | Data |
---|---|---|
8cc6a083 | 1 | #!/bin/sh |
d025524d | 2 | |
4ef40cdb | 3 | USAGE='[start|bad|good|next|reset|visualize|replay|log]' |
d025524d FK |
4 | LONG_USAGE='git bisect start [<pathspec>] reset bisect state and start bisection. |
5 | git bisect bad [<rev>] mark <rev> a known-bad revision. | |
6 | git bisect good [<rev>...] mark <rev>... known-good revisions. | |
7 | git bisect next find next bisection to test and check it out. | |
8 | git bisect reset [<branch>] finish bisection search and go back to branch. | |
9 | git bisect visualize show bisect status in gitk. | |
10 | git bisect replay <logfile> replay bisection log | |
11 | git bisect log show bisect log.' | |
12 | ||
ae2b0f15 | 13 | . git-sh-setup |
4c550686 | 14 | require_work_tree |
8cc6a083 | 15 | |
e9a45d75 | 16 | sq() { |
d9bffc08 | 17 | @@PERL@@ -e ' |
e9a45d75 JH |
18 | for (@ARGV) { |
19 | s/'\''/'\'\\\\\'\''/g; | |
20 | print " '\''$_'\''"; | |
21 | } | |
22 | print "\n"; | |
23 | ' "$@" | |
24 | } | |
25 | ||
8cc6a083 LT |
26 | bisect_autostart() { |
27 | test -d "$GIT_DIR/refs/bisect" || { | |
28 | echo >&2 'You need to start by "git bisect start"' | |
29 | if test -t 0 | |
30 | then | |
31 | echo >&2 -n 'Do you want me to do it for you [Y/n]? ' | |
32 | read yesno | |
33 | case "$yesno" in | |
34 | [Nn]*) | |
35 | exit ;; | |
36 | esac | |
37 | bisect_start | |
38 | else | |
39 | exit 1 | |
40 | fi | |
41 | } | |
42 | } | |
43 | ||
44 | bisect_start() { | |
8cc6a083 LT |
45 | # |
46 | # Verify HEAD. If we were bisecting before this, reset to the | |
47 | # top-of-line master first! | |
48 | # | |
8098a178 JH |
49 | head=$(GIT_DIR="$GIT_DIR" git-symbolic-ref HEAD) || |
50 | die "Bad HEAD - I need a symbolic ref" | |
8cc6a083 LT |
51 | case "$head" in |
52 | refs/heads/bisect*) | |
810255fd PB |
53 | if [ -s "$GIT_DIR/head-name" ]; then |
54 | branch=`cat "$GIT_DIR/head-name"` | |
55 | else | |
56 | branch=master | |
57 | fi | |
58 | git checkout $branch || exit | |
8cc6a083 LT |
59 | ;; |
60 | refs/heads/*) | |
810255fd PB |
61 | [ -s "$GIT_DIR/head-name" ] && die "won't bisect on seeked tree" |
62 | echo "$head" | sed 's#^refs/heads/##' >"$GIT_DIR/head-name" | |
8cc6a083 LT |
63 | ;; |
64 | *) | |
8098a178 | 65 | die "Bad HEAD - strange symbolic ref" |
8cc6a083 LT |
66 | ;; |
67 | esac | |
68 | ||
69 | # | |
70 | # Get rid of any old bisect state | |
71 | # | |
72 | rm -f "$GIT_DIR/refs/heads/bisect" | |
73 | rm -rf "$GIT_DIR/refs/bisect/" | |
74 | mkdir "$GIT_DIR/refs/bisect" | |
e9a45d75 | 75 | { |
9754563c | 76 | printf "git-bisect start" |
e9a45d75 JH |
77 | sq "$@" |
78 | } >"$GIT_DIR/BISECT_LOG" | |
79 | sq "$@" >"$GIT_DIR/BISECT_NAMES" | |
8cc6a083 LT |
80 | } |
81 | ||
82 | bisect_bad() { | |
83 | bisect_autostart | |
cc9f24d0 JH |
84 | case "$#" in |
85 | 0) | |
86 | rev=$(git-rev-parse --verify HEAD) ;; | |
87 | 1) | |
88 | rev=$(git-rev-parse --verify "$1") ;; | |
89 | *) | |
90 | usage ;; | |
91 | esac || exit | |
e204de28 JH |
92 | echo "$rev" >"$GIT_DIR/refs/bisect/bad" |
93 | echo "# bad: "$(git-show-branch $rev) >>"$GIT_DIR/BISECT_LOG" | |
94 | echo "git-bisect bad $rev" >>"$GIT_DIR/BISECT_LOG" | |
8cc6a083 LT |
95 | bisect_auto_next |
96 | } | |
97 | ||
98 | bisect_good() { | |
99 | bisect_autostart | |
100 | case "$#" in | |
101 | 0) revs=$(git-rev-parse --verify HEAD) || exit ;; | |
cc9f24d0 JH |
102 | *) revs=$(git-rev-parse --revs-only --no-flags "$@") && |
103 | test '' != "$revs" || die "Bad rev input: $@" ;; | |
8cc6a083 LT |
104 | esac |
105 | for rev in $revs | |
106 | do | |
cc9f24d0 JH |
107 | rev=$(git-rev-parse --verify "$rev") || exit |
108 | echo "$rev" >"$GIT_DIR/refs/bisect/good-$rev" | |
e204de28 JH |
109 | echo "# good: "$(git-show-branch $rev) >>"$GIT_DIR/BISECT_LOG" |
110 | echo "git-bisect good $rev" >>"$GIT_DIR/BISECT_LOG" | |
8cc6a083 LT |
111 | done |
112 | bisect_auto_next | |
113 | } | |
114 | ||
115 | bisect_next_check() { | |
116 | next_ok=no | |
117 | test -f "$GIT_DIR/refs/bisect/bad" && | |
118 | case "$(cd "$GIT_DIR" && echo refs/bisect/good-*)" in | |
119 | refs/bisect/good-\*) ;; | |
120 | *) next_ok=yes ;; | |
121 | esac | |
122 | case "$next_ok,$1" in | |
123 | no,) false ;; | |
124 | no,fail) | |
125 | echo >&2 'You need to give me at least one good and one bad revisions.' | |
126 | exit 1 ;; | |
127 | *) | |
128 | true ;; | |
129 | esac | |
130 | } | |
131 | ||
132 | bisect_auto_next() { | |
434d036f | 133 | bisect_next_check && bisect_next || : |
8cc6a083 LT |
134 | } |
135 | ||
136 | bisect_next() { | |
137 | case "$#" in 0) ;; *) usage ;; esac | |
138 | bisect_autostart | |
139 | bisect_next_check fail | |
140 | bad=$(git-rev-parse --verify refs/bisect/bad) && | |
141 | good=$(git-rev-parse --sq --revs-only --not \ | |
142 | $(cd "$GIT_DIR" && ls refs/bisect/good-*)) && | |
b3cfd939 | 143 | rev=$(eval "git-rev-list --bisect $good $bad -- $(cat $GIT_DIR/BISECT_NAMES)") || exit |
670f5fe3 LT |
144 | if [ -z "$rev" ]; then |
145 | echo "$bad was both good and bad" | |
146 | exit 1 | |
147 | fi | |
148 | if [ "$rev" = "$bad" ]; then | |
7f47e72f JH |
149 | echo "$rev is first bad commit" |
150 | git-diff-tree --pretty $rev | |
8cc6a083 LT |
151 | exit 0 |
152 | fi | |
b3cfd939 | 153 | nr=$(eval "git-rev-list $rev $good -- $(cat $GIT_DIR/BISECT_NAMES)" | wc -l) || exit |
8cc6a083 LT |
154 | echo "Bisecting: $nr revisions left to test after this" |
155 | echo "$rev" > "$GIT_DIR/refs/heads/new-bisect" | |
08f16750 | 156 | git checkout -q new-bisect || exit |
8cc6a083 | 157 | mv "$GIT_DIR/refs/heads/new-bisect" "$GIT_DIR/refs/heads/bisect" && |
8098a178 | 158 | GIT_DIR="$GIT_DIR" git-symbolic-ref HEAD refs/heads/bisect |
e204de28 | 159 | git-show-branch "$rev" |
8cc6a083 LT |
160 | } |
161 | ||
cc9f24d0 JH |
162 | bisect_visualize() { |
163 | bisect_next_check fail | |
e9a45d75 JH |
164 | not=`cd "$GIT_DIR/refs" && echo bisect/good-*` |
165 | eval gitk bisect/bad --not $not -- $(cat "$GIT_DIR/BISECT_NAMES") | |
cc9f24d0 JH |
166 | } |
167 | ||
8cc6a083 LT |
168 | bisect_reset() { |
169 | case "$#" in | |
810255fd PB |
170 | 0) if [ -s "$GIT_DIR/head-name" ]; then |
171 | branch=`cat "$GIT_DIR/head-name"` | |
172 | else | |
173 | branch=master | |
174 | fi ;; | |
8cc6a083 LT |
175 | 1) test -f "$GIT_DIR/refs/heads/$1" || { |
176 | echo >&2 "$1 does not seem to be a valid branch" | |
177 | exit 1 | |
178 | } | |
179 | branch="$1" ;; | |
180 | *) | |
181 | usage ;; | |
182 | esac | |
9b709e47 PB |
183 | if git checkout "$branch"; then |
184 | rm -fr "$GIT_DIR/refs/bisect" | |
185 | rm -f "$GIT_DIR/refs/heads/bisect" "$GIT_DIR/head-name" | |
186 | rm -f "$GIT_DIR/BISECT_LOG" | |
187 | rm -f "$GIT_DIR/BISECT_NAMES" | |
188 | fi | |
e204de28 JH |
189 | } |
190 | ||
191 | bisect_replay () { | |
192 | test -r "$1" || { | |
193 | echo >&2 "cannot read $1 for replaying" | |
194 | exit 1 | |
195 | } | |
196 | bisect_reset | |
197 | while read bisect command rev | |
198 | do | |
199 | test "$bisect" = "git-bisect" || continue | |
200 | case "$command" in | |
201 | start) | |
e9a45d75 JH |
202 | cmd="bisect_start $rev" |
203 | eval "$cmd" | |
e204de28 JH |
204 | ;; |
205 | good) | |
206 | echo "$rev" >"$GIT_DIR/refs/bisect/good-$rev" | |
207 | echo "# good: "$(git-show-branch $rev) >>"$GIT_DIR/BISECT_LOG" | |
208 | echo "git-bisect good $rev" >>"$GIT_DIR/BISECT_LOG" | |
209 | ;; | |
210 | bad) | |
211 | echo "$rev" >"$GIT_DIR/refs/bisect/bad" | |
212 | echo "# bad: "$(git-show-branch $rev) >>"$GIT_DIR/BISECT_LOG" | |
213 | echo "git-bisect bad $rev" >>"$GIT_DIR/BISECT_LOG" | |
214 | ;; | |
215 | *) | |
216 | echo >&2 "?? what are you talking about?" | |
217 | exit 1 ;; | |
218 | esac | |
219 | done <"$1" | |
220 | bisect_auto_next | |
8cc6a083 LT |
221 | } |
222 | ||
223 | case "$#" in | |
224 | 0) | |
225 | usage ;; | |
226 | *) | |
227 | cmd="$1" | |
228 | shift | |
229 | case "$cmd" in | |
230 | start) | |
231 | bisect_start "$@" ;; | |
232 | bad) | |
233 | bisect_bad "$@" ;; | |
234 | good) | |
235 | bisect_good "$@" ;; | |
236 | next) | |
237 | # Not sure we want "next" at the UI level anymore. | |
238 | bisect_next "$@" ;; | |
cc9f24d0 JH |
239 | visualize) |
240 | bisect_visualize "$@" ;; | |
8cc6a083 LT |
241 | reset) |
242 | bisect_reset "$@" ;; | |
e204de28 JH |
243 | replay) |
244 | bisect_replay "$@" ;; | |
245 | log) | |
246 | cat "$GIT_DIR/BISECT_LOG" ;; | |
8cc6a083 LT |
247 | *) |
248 | usage ;; | |
249 | esac | |
250 | esac |