]>
Commit | Line | Data |
---|---|---|
b33e9666 LT |
1 | #!/bin/sh |
2 | # | |
ae2b0f15 JH |
3 | # This is included in commands that either have to be run from the toplevel |
4 | # of the repository, or with GIT_DIR environment variable properly. | |
5 | # If the GIT_DIR does not look like the right correct git-repository, | |
6 | # it dies. | |
b33e9666 | 7 | |
365527ad | 8 | # Having this variable in your environment would break scripts because |
e598c517 | 9 | # you would cause "cd" to be taken to unexpected places. If you |
365527ad JH |
10 | # like CDPATH, define it for your interactive shell sessions without |
11 | # exporting it. | |
785063e0 | 12 | # But we protect ourselves from such a user mistake nevertheless. |
365527ad JH |
13 | unset CDPATH |
14 | ||
393050c3 JH |
15 | # Similarly for IFS, but some shells (e.g. FreeBSD 7.2) are buggy and |
16 | # do not equate an unset IFS with IFS with the default, so here is | |
17 | # an explicit SP HT LF. | |
18 | IFS=' | |
19 | ' | |
785063e0 | 20 | |
61dbb3c4 JH |
21 | git_broken_path_fix () { |
22 | case ":$PATH:" in | |
23 | *:$1:*) : ok ;; | |
24 | *) | |
25 | PATH=$( | |
26 | SANE_TOOL_PATH="$1" | |
27 | IFS=: path= sep= | |
28 | set x $PATH | |
29 | shift | |
30 | for elem | |
31 | do | |
32 | case "$SANE_TOOL_PATH:$elem" in | |
33 | (?*:/bin | ?*:/usr/bin) | |
34 | path="$path$sep$SANE_TOOL_PATH" | |
35 | sep=: | |
36 | SANE_TOOL_PATH= | |
37 | esac | |
38 | path="$path$sep$elem" | |
39 | sep=: | |
40 | done | |
41 | echo "$path" | |
42 | ) | |
43 | ;; | |
44 | esac | |
45 | } | |
46 | ||
47 | # @@BROKEN_PATH_FIX@@ | |
0e0aea5a | 48 | |
adb231cf FG |
49 | die () { |
50 | die_with_status 1 "$@" | |
51 | } | |
52 | ||
53 | die_with_status () { | |
54 | status=$1 | |
55 | shift | |
89b0230a | 56 | printf >&2 '%s\n' "$*" |
adb231cf | 57 | exit "$status" |
b33e9666 LT |
58 | } |
59 | ||
e064c170 SB |
60 | GIT_QUIET= |
61 | ||
62 | say () { | |
63 | if test -z "$GIT_QUIET" | |
64 | then | |
65 | printf '%s\n' "$*" | |
66 | fi | |
67 | } | |
68 | ||
bac199b7 PH |
69 | if test -n "$OPTIONS_SPEC"; then |
70 | usage() { | |
5d292756 JH |
71 | "$0" -h |
72 | exit 1 | |
bac199b7 PH |
73 | } |
74 | ||
e817e3e8 PH |
75 | parseopt_extra= |
76 | [ -n "$OPTIONS_KEEPDASHDASH" ] && | |
77 | parseopt_extra="--keep-dashdash" | |
78 | ||
79 | eval "$( | |
cbea86fd | 80 | echo "$OPTIONS_SPEC" | |
e817e3e8 PH |
81 | git rev-parse --parseopt $parseopt_extra -- "$@" || |
82 | echo exit $? | |
83 | )" | |
bac199b7 | 84 | else |
1b1dd23f | 85 | dashless=$(basename "$0" | sed -e 's/-/ /') |
bac199b7 | 86 | usage() { |
0b54366c | 87 | die "usage: $dashless $USAGE" |
bac199b7 PH |
88 | } |
89 | ||
90 | if [ -z "$LONG_USAGE" ] | |
91 | then | |
0b54366c | 92 | LONG_USAGE="usage: $dashless $USAGE" |
bac199b7 | 93 | else |
0b54366c | 94 | LONG_USAGE="usage: $dashless $USAGE |
bac199b7 PH |
95 | |
96 | $LONG_USAGE" | |
97 | fi | |
98 | ||
99 | case "$1" in | |
87182b17 | 100 | -h) |
bac199b7 PH |
101 | echo "$LONG_USAGE" |
102 | exit | |
103 | esac | |
104 | fi | |
d025524d | 105 | |
f9474132 SP |
106 | set_reflog_action() { |
107 | if [ -z "${GIT_REFLOG_ACTION:+set}" ] | |
108 | then | |
109 | GIT_REFLOG_ACTION="$*" | |
110 | export GIT_REFLOG_ACTION | |
111 | fi | |
112 | } | |
113 | ||
ef0c2abf | 114 | git_editor() { |
b4479f07 JN |
115 | if test -z "${GIT_EDITOR:+set}" |
116 | then | |
117 | GIT_EDITOR="$(git var GIT_EDITOR)" || return $? | |
118 | fi | |
119 | ||
120 | eval "$GIT_EDITOR" '"$@"' | |
ef0c2abf AR |
121 | } |
122 | ||
f6dff119 JN |
123 | git_pager() { |
124 | if test -t 1 | |
125 | then | |
126 | GIT_PAGER=$(git var GIT_PAGER) | |
127 | else | |
128 | GIT_PAGER=cat | |
129 | fi | |
130 | : ${LESS=-FRSX} | |
131 | export LESS | |
132 | ||
133 | eval "$GIT_PAGER" '"$@"' | |
134 | } | |
135 | ||
e1622bfc JH |
136 | sane_grep () { |
137 | GREP_OPTIONS= LC_ALL=C grep "$@" | |
138 | } | |
139 | ||
140 | sane_egrep () { | |
141 | GREP_OPTIONS= LC_ALL=C egrep "$@" | |
142 | } | |
143 | ||
4b441f47 | 144 | is_bare_repository () { |
5be60078 | 145 | git rev-parse --is-bare-repository |
4b441f47 JH |
146 | } |
147 | ||
9fde9401 | 148 | cd_to_toplevel () { |
91dc602d SD |
149 | cdup=$(git rev-parse --show-toplevel) && |
150 | cd "$cdup" || { | |
151 | echo >&2 "Cannot chdir to $cdup, the toplevel of the working tree" | |
152 | exit 1 | |
153 | } | |
9fde9401 JH |
154 | } |
155 | ||
e2eb5273 JH |
156 | require_work_tree_exists () { |
157 | if test "z$(git rev-parse --is-bare-repository)" != zfalse | |
158 | then | |
159 | die "fatal: $0 cannot be used without a working tree." | |
160 | fi | |
161 | } | |
162 | ||
7eff28a9 | 163 | require_work_tree () { |
ab62677b | 164 | test "$(git rev-parse --is-inside-work-tree 2>/dev/null)" = true || |
7eff28a9 SP |
165 | die "fatal: $0 cannot be used without a working tree." |
166 | } | |
167 | ||
92c62a3f RR |
168 | require_clean_work_tree () { |
169 | git rev-parse --verify HEAD >/dev/null || exit 1 | |
170 | git update-index -q --ignore-submodules --refresh | |
171 | err=0 | |
172 | ||
173 | if ! git diff-files --quiet --ignore-submodules | |
174 | then | |
175 | echo >&2 "Cannot $1: You have unstaged changes." | |
176 | err=1 | |
177 | fi | |
178 | ||
179 | if ! git diff-index --cached --quiet --ignore-submodules HEAD -- | |
180 | then | |
181 | if [ $err = 0 ] | |
182 | then | |
183 | echo >&2 "Cannot $1: Your index contains uncommitted changes." | |
184 | else | |
185 | echo >&2 "Additionally, your index contains uncommitted changes." | |
186 | fi | |
187 | err=1 | |
188 | fi | |
189 | ||
190 | if [ $err = 1 ] | |
191 | then | |
192 | test -n "$2" && echo >&2 "$2" | |
193 | exit 1 | |
194 | fi | |
195 | } | |
196 | ||
ce80ca56 JK |
197 | # Generate a sed script to parse identities from a commit. |
198 | # | |
199 | # Reads the commit from stdin, which should be in raw format (e.g., from | |
200 | # cat-file or "--pretty=raw"). | |
201 | # | |
202 | # The first argument specifies the ident line to parse (e.g., "author"), and | |
203 | # the second specifies the environment variable to put it in (e.g., "AUTHOR" | |
204 | # for "GIT_AUTHOR_*"). Multiple pairs can be given to parse author and | |
205 | # committer. | |
206 | pick_ident_script () { | |
207 | while test $# -gt 0 | |
208 | do | |
209 | lid=$1; shift | |
210 | uid=$1; shift | |
211 | printf '%s' " | |
212 | /^$lid /{ | |
213 | s/'/'\\\\''/g | |
214 | h | |
215 | s/^$lid "'\([^<]*\) <[^>]*> .*$/\1/'" | |
216 | s/.*/GIT_${uid}_NAME='&'/p | |
217 | ||
218 | g | |
219 | s/^$lid "'[^<]* <\([^>]*\)> .*$/\1/'" | |
220 | s/.*/GIT_${uid}_EMAIL='&'/p | |
221 | ||
222 | g | |
223 | s/^$lid "'[^<]* <[^>]*> \(.*\)$/@\1/'" | |
224 | s/.*/GIT_${uid}_DATE='&'/p | |
225 | } | |
226 | " | |
227 | done | |
228 | echo '/^$/q' | |
229 | } | |
230 | ||
231 | # Create a pick-script as above and feed it to sed. Stdout is suitable for | |
232 | # feeding to eval. | |
233 | parse_ident_from_commit () { | |
234 | LANG=C LC_ALL=C sed -ne "$(pick_ident_script "$@")" | |
235 | } | |
236 | ||
237 | # Parse the author from a commit given as an argument. Stdout is suitable for | |
238 | # feeding to eval to set the usual GIT_* ident variables. | |
0cae2346 | 239 | get_author_ident_from_commit () { |
0cae2346 | 240 | encoding=$(git config i18n.commitencoding || echo UTF-8) |
077b725f | 241 | git show -s --pretty=raw --encoding="$encoding" "$1" -- | |
ce80ca56 | 242 | parse_ident_from_commit author AUTHOR |
0cae2346 JS |
243 | } |
244 | ||
7d750f0e GB |
245 | # Clear repo-local GIT_* environment variables. Useful when switching to |
246 | # another repository (e.g. when entering a submodule). See also the env | |
247 | # list in git_connect() | |
248 | clear_local_git_env() { | |
249 | unset $(git rev-parse --local-env-vars) | |
250 | } | |
251 | ||
4549162e KB |
252 | # Generate a virtual base file for a two-file merge. Uses git apply to |
253 | # remove lines from $1 that are not in $2, leaving only common lines. | |
254 | create_virtual_base() { | |
255 | sz0=$(wc -c <"$1") | |
256 | @@DIFF@@ -u -La/"$1" -Lb/"$1" "$1" "$2" | git apply --no-add | |
257 | sz1=$(wc -c <"$1") | |
258 | ||
259 | # If we do not have enough common material, it is not | |
260 | # worth trying two-file merge using common subsections. | |
261 | expr $sz0 \< $sz1 \* 2 >/dev/null || : >"$1" | |
262 | } | |
263 | ||
87bddba9 | 264 | |
10587ce6 | 265 | # Platform specific tweaks to work around some commands |
87bddba9 JS |
266 | case $(uname -s) in |
267 | *MINGW*) | |
268 | # Windows has its own (incompatible) sort and find | |
269 | sort () { | |
270 | /usr/bin/sort "$@" | |
271 | } | |
272 | find () { | |
273 | /usr/bin/find "$@" | |
274 | } | |
be39048a RJ |
275 | # git sees Windows-style pwd |
276 | pwd () { | |
277 | builtin pwd -W | |
278 | } | |
5e9677cb PT |
279 | is_absolute_path () { |
280 | case "$1" in | |
281 | [/\\]* | [A-Za-z]:*) | |
282 | return 0 ;; | |
283 | esac | |
284 | return 1 | |
285 | } | |
87bddba9 | 286 | ;; |
5e9677cb PT |
287 | *) |
288 | is_absolute_path () { | |
289 | case "$1" in | |
290 | /*) | |
291 | return 0 ;; | |
292 | esac | |
293 | return 1 | |
294 | } | |
87bddba9 | 295 | esac |
10587ce6 JH |
296 | |
297 | # Make sure we are in a valid repository of a vintage we understand, | |
298 | # if we require to be in a git repository. | |
299 | if test -z "$NONGIT_OK" | |
300 | then | |
301 | GIT_DIR=$(git rev-parse --git-dir) || exit | |
302 | if [ -z "$SUBDIRECTORY_OK" ] | |
303 | then | |
304 | test -z "$(git rev-parse --show-cdup)" || { | |
305 | exit=$? | |
306 | echo >&2 "You need to run this command from the toplevel of the working tree." | |
307 | exit $exit | |
308 | } | |
309 | fi | |
310 | test -n "$GIT_DIR" && GIT_DIR=$(cd "$GIT_DIR" && pwd) || { | |
311 | echo >&2 "Unable to determine absolute path of git directory" | |
312 | exit 1 | |
313 | } | |
314 | : ${GIT_OBJECT_DIRECTORY="$GIT_DIR/objects"} | |
315 | fi | |
bac1ddd0 RR |
316 | |
317 | peel_committish () { | |
318 | case "$1" in | |
319 | :/*) | |
320 | peeltmp=$(git rev-parse --verify "$1") && | |
321 | git rev-parse --verify "${peeltmp}^0" | |
322 | ;; | |
323 | *) | |
324 | git rev-parse --verify "${1}^0" | |
325 | ;; | |
326 | esac | |
327 | } |