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1 | #!/bin/sh | |
2 | # | |
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. | |
7 | ||
8 | # Having this variable in your environment would break scripts because | |
9 | # you would cause "cd" to be taken to unexpected places. If you | |
10 | # like CDPATH, define it for your interactive shell sessions without | |
11 | # exporting it. | |
12 | unset CDPATH | |
13 | ||
14 | git_broken_path_fix () { | |
15 | case ":$PATH:" in | |
16 | *:$1:*) : ok ;; | |
17 | *) | |
18 | PATH=$( | |
19 | SANE_TOOL_PATH="$1" | |
20 | IFS=: path= sep= | |
21 | set x $PATH | |
22 | shift | |
23 | for elem | |
24 | do | |
25 | case "$SANE_TOOL_PATH:$elem" in | |
26 | (?*:/bin | ?*:/usr/bin) | |
27 | path="$path$sep$SANE_TOOL_PATH" | |
28 | sep=: | |
29 | SANE_TOOL_PATH= | |
30 | esac | |
31 | path="$path$sep$elem" | |
32 | sep=: | |
33 | done | |
34 | echo "$path" | |
35 | ) | |
36 | ;; | |
37 | esac | |
38 | } | |
39 | ||
40 | # @@BROKEN_PATH_FIX@@ | |
41 | ||
42 | die() { | |
43 | echo >&2 "$@" | |
44 | exit 1 | |
45 | } | |
46 | ||
47 | GIT_QUIET= | |
48 | ||
49 | say () { | |
50 | if test -z "$GIT_QUIET" | |
51 | then | |
52 | printf '%s\n' "$*" | |
53 | fi | |
54 | } | |
55 | ||
56 | if test -n "$OPTIONS_SPEC"; then | |
57 | usage() { | |
58 | "$0" -h | |
59 | exit 1 | |
60 | } | |
61 | ||
62 | parseopt_extra= | |
63 | [ -n "$OPTIONS_KEEPDASHDASH" ] && | |
64 | parseopt_extra="--keep-dashdash" | |
65 | ||
66 | eval "$( | |
67 | echo "$OPTIONS_SPEC" | | |
68 | git rev-parse --parseopt $parseopt_extra -- "$@" || | |
69 | echo exit $? | |
70 | )" | |
71 | else | |
72 | dashless=$(basename "$0" | sed -e 's/-/ /') | |
73 | usage() { | |
74 | die "Usage: $dashless $USAGE" | |
75 | } | |
76 | ||
77 | if [ -z "$LONG_USAGE" ] | |
78 | then | |
79 | LONG_USAGE="Usage: $dashless $USAGE" | |
80 | else | |
81 | LONG_USAGE="Usage: $dashless $USAGE | |
82 | ||
83 | $LONG_USAGE" | |
84 | fi | |
85 | ||
86 | case "$1" in | |
87 | -h|--h|--he|--hel|--help) | |
88 | echo "$LONG_USAGE" | |
89 | exit | |
90 | esac | |
91 | fi | |
92 | ||
93 | set_reflog_action() { | |
94 | if [ -z "${GIT_REFLOG_ACTION:+set}" ] | |
95 | then | |
96 | GIT_REFLOG_ACTION="$*" | |
97 | export GIT_REFLOG_ACTION | |
98 | fi | |
99 | } | |
100 | ||
101 | git_editor() { | |
102 | if test -z "${GIT_EDITOR:+set}" | |
103 | then | |
104 | GIT_EDITOR="$(git var GIT_EDITOR)" || return $? | |
105 | fi | |
106 | ||
107 | eval "$GIT_EDITOR" '"$@"' | |
108 | } | |
109 | ||
110 | git_pager() { | |
111 | if test -t 1 | |
112 | then | |
113 | GIT_PAGER=$(git var GIT_PAGER) | |
114 | else | |
115 | GIT_PAGER=cat | |
116 | fi | |
117 | : ${LESS=-FRSX} | |
118 | export LESS | |
119 | ||
120 | eval "$GIT_PAGER" '"$@"' | |
121 | } | |
122 | ||
123 | sane_grep () { | |
124 | GREP_OPTIONS= LC_ALL=C grep "$@" | |
125 | } | |
126 | ||
127 | sane_egrep () { | |
128 | GREP_OPTIONS= LC_ALL=C egrep "$@" | |
129 | } | |
130 | ||
131 | is_bare_repository () { | |
132 | git rev-parse --is-bare-repository | |
133 | } | |
134 | ||
135 | cd_to_toplevel () { | |
136 | cdup=$(git rev-parse --show-toplevel) && | |
137 | cd "$cdup" || { | |
138 | echo >&2 "Cannot chdir to $cdup, the toplevel of the working tree" | |
139 | exit 1 | |
140 | } | |
141 | } | |
142 | ||
143 | require_work_tree () { | |
144 | test "$(git rev-parse --is-inside-work-tree 2>/dev/null)" = true || | |
145 | die "fatal: $0 cannot be used without a working tree." | |
146 | } | |
147 | ||
148 | require_clean_work_tree () { | |
149 | git rev-parse --verify HEAD >/dev/null || exit 1 | |
150 | git update-index -q --ignore-submodules --refresh | |
151 | err=0 | |
152 | ||
153 | if ! git diff-files --quiet --ignore-submodules | |
154 | then | |
155 | echo >&2 "Cannot $1: You have unstaged changes." | |
156 | err=1 | |
157 | fi | |
158 | ||
159 | if ! git diff-index --cached --quiet --ignore-submodules HEAD -- | |
160 | then | |
161 | if [ $err = 0 ] | |
162 | then | |
163 | echo >&2 "Cannot $1: Your index contains uncommitted changes." | |
164 | else | |
165 | echo >&2 "Additionally, your index contains uncommitted changes." | |
166 | fi | |
167 | err=1 | |
168 | fi | |
169 | ||
170 | if [ $err = 1 ] | |
171 | then | |
172 | test -n "$2" && echo >&2 "$2" | |
173 | exit 1 | |
174 | fi | |
175 | } | |
176 | ||
177 | get_author_ident_from_commit () { | |
178 | pick_author_script=' | |
179 | /^author /{ | |
180 | s/'\''/'\''\\'\'\''/g | |
181 | h | |
182 | s/^author \([^<]*\) <[^>]*> .*$/\1/ | |
183 | s/.*/GIT_AUTHOR_NAME='\''&'\''/p | |
184 | ||
185 | g | |
186 | s/^author [^<]* <\([^>]*\)> .*$/\1/ | |
187 | s/.*/GIT_AUTHOR_EMAIL='\''&'\''/p | |
188 | ||
189 | g | |
190 | s/^author [^<]* <[^>]*> \(.*\)$/\1/ | |
191 | s/.*/GIT_AUTHOR_DATE='\''&'\''/p | |
192 | ||
193 | q | |
194 | } | |
195 | ' | |
196 | encoding=$(git config i18n.commitencoding || echo UTF-8) | |
197 | git show -s --pretty=raw --encoding="$encoding" "$1" -- | | |
198 | LANG=C LC_ALL=C sed -ne "$pick_author_script" | |
199 | } | |
200 | ||
201 | # Clear repo-local GIT_* environment variables. Useful when switching to | |
202 | # another repository (e.g. when entering a submodule). See also the env | |
203 | # list in git_connect() | |
204 | clear_local_git_env() { | |
205 | unset $(git rev-parse --local-env-vars) | |
206 | } | |
207 | ||
208 | # Make sure we are in a valid repository of a vintage we understand, | |
209 | # if we require to be in a git repository. | |
210 | if test -z "$NONGIT_OK" | |
211 | then | |
212 | GIT_DIR=$(git rev-parse --git-dir) || exit | |
213 | if [ -z "$SUBDIRECTORY_OK" ] | |
214 | then | |
215 | test -z "$(git rev-parse --show-cdup)" || { | |
216 | exit=$? | |
217 | echo >&2 "You need to run this command from the toplevel of the working tree." | |
218 | exit $exit | |
219 | } | |
220 | fi | |
221 | test -n "$GIT_DIR" && GIT_DIR=$(cd "$GIT_DIR" && pwd) || { | |
222 | echo >&2 "Unable to determine absolute path of git directory" | |
223 | exit 1 | |
224 | } | |
225 | : ${GIT_OBJECT_DIRECTORY="$GIT_DIR/objects"} | |
226 | fi | |
227 | ||
228 | # Fix some commands on Windows | |
229 | case $(uname -s) in | |
230 | *MINGW*) | |
231 | # Windows has its own (incompatible) sort and find | |
232 | sort () { | |
233 | /usr/bin/sort "$@" | |
234 | } | |
235 | find () { | |
236 | /usr/bin/find "$@" | |
237 | } | |
238 | is_absolute_path () { | |
239 | case "$1" in | |
240 | [/\\]* | [A-Za-z]:*) | |
241 | return 0 ;; | |
242 | esac | |
243 | return 1 | |
244 | } | |
245 | ;; | |
246 | *) | |
247 | is_absolute_path () { | |
248 | case "$1" in | |
249 | /*) | |
250 | return 0 ;; | |
251 | esac | |
252 | return 1 | |
253 | } | |
254 | esac |