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