Revert "scripts/setlocalversion: git: Make -dirty check more robust"
[muen/linux.git] / scripts / setlocalversion
1 #!/bin/sh
2 # SPDX-License-Identifier: GPL-2.0
3 #
4 # This scripts adds local version information from the version
5 # control systems git, mercurial (hg) and subversion (svn).
6 #
7 # If something goes wrong, send a mail the kernel build mailinglist
8 # (see MAINTAINERS) and CC Nico Schottelius
9 # <nico-linuxsetlocalversion -at- schottelius.org>.
10 #
11 #
12
13 usage() {
14         echo "Usage: $0 [--save-scmversion] [srctree]" >&2
15         exit 1
16 }
17
18 scm_only=false
19 srctree=.
20 if test "$1" = "--save-scmversion"; then
21         scm_only=true
22         shift
23 fi
24 if test $# -gt 0; then
25         srctree=$1
26         shift
27 fi
28 if test $# -gt 0 -o ! -d "$srctree"; then
29         usage
30 fi
31
32 scm_version()
33 {
34         local short
35         short=false
36
37         cd "$srctree"
38         if test -e .scmversion; then
39                 cat .scmversion
40                 return
41         fi
42         if test "$1" = "--short"; then
43                 short=true
44         fi
45
46         # Check for git and a git repo.
47         if test -z "$(git rev-parse --show-cdup 2>/dev/null)" &&
48            head=`git rev-parse --verify --short HEAD 2>/dev/null`; then
49
50                 # If we are at a tagged commit (like "v2.6.30-rc6"), we ignore
51                 # it, because this version is defined in the top level Makefile.
52                 if [ -z "`git describe --exact-match 2>/dev/null`" ]; then
53
54                         # If only the short version is requested, don't bother
55                         # running further git commands
56                         if $short; then
57                                 echo "+"
58                                 return
59                         fi
60                         # If we are past a tagged commit (like
61                         # "v2.6.30-rc5-302-g72357d5"), we pretty print it.
62                         if atag="`git describe 2>/dev/null`"; then
63                                 echo "$atag" | awk -F- '{printf("-%05d-%s", $(NF-1),$(NF))}'
64
65                         # If we don't have a tag at all we print -g{commitish}.
66                         else
67                                 printf '%s%s' -g $head
68                         fi
69                 fi
70
71                 # Is this git on svn?
72                 if git config --get svn-remote.svn.url >/dev/null; then
73                         printf -- '-svn%s' "`git svn find-rev $head`"
74                 fi
75
76                 # Check for uncommitted changes
77                 if git diff-index --name-only HEAD | grep -qv "^scripts/package"; then
78                         printf '%s' -dirty
79                 fi
80
81                 # All done with git
82                 return
83         fi
84
85         # Check for mercurial and a mercurial repo.
86         if test -d .hg && hgid=`hg id 2>/dev/null`; then
87                 # Do we have an tagged version?  If so, latesttagdistance == 1
88                 if [ "`hg log -r . --template '{latesttagdistance}'`" == "1" ]; then
89                         id=`hg log -r . --template '{latesttag}'`
90                         printf '%s%s' -hg "$id"
91                 else
92                         tag=`printf '%s' "$hgid" | cut -d' ' -f2`
93                         if [ -z "$tag" -o "$tag" = tip ]; then
94                                 id=`printf '%s' "$hgid" | sed 's/[+ ].*//'`
95                                 printf '%s%s' -hg "$id"
96                         fi
97                 fi
98
99                 # Are there uncommitted changes?
100                 # These are represented by + after the changeset id.
101                 case "$hgid" in
102                         *+|*+\ *) printf '%s' -dirty ;;
103                 esac
104
105                 # All done with mercurial
106                 return
107         fi
108
109         # Check for svn and a svn repo.
110         if rev=`LANG= LC_ALL= LC_MESSAGES=C svn info 2>/dev/null | grep '^Last Changed Rev'`; then
111                 rev=`echo $rev | awk '{print $NF}'`
112                 printf -- '-svn%s' "$rev"
113
114                 # All done with svn
115                 return
116         fi
117 }
118
119 collect_files()
120 {
121         local file res
122
123         for file; do
124                 case "$file" in
125                 *\~*)
126                         continue
127                         ;;
128                 esac
129                 if test -e "$file"; then
130                         res="$res$(cat "$file")"
131                 fi
132         done
133         echo "$res"
134 }
135
136 if $scm_only; then
137         if test ! -e .scmversion; then
138                 res=$(scm_version)
139                 echo "$res" >.scmversion
140         fi
141         exit
142 fi
143
144 if test -e include/config/auto.conf; then
145         . include/config/auto.conf
146 else
147         echo "Error: kernelrelease not valid - run 'make prepare' to update it" >&2
148         exit 1
149 fi
150
151 # localversion* files in the build and source directory
152 res="$(collect_files localversion*)"
153 if test ! "$srctree" -ef .; then
154         res="$res$(collect_files "$srctree"/localversion*)"
155 fi
156
157 # CONFIG_LOCALVERSION and LOCALVERSION (if set)
158 res="${res}${CONFIG_LOCALVERSION}${LOCALVERSION}"
159
160 # scm version string if not at a tagged commit
161 if test "$CONFIG_LOCALVERSION_AUTO" = "y"; then
162         # full scm version string
163         res="$res$(scm_version)"
164 else
165         # append a plus sign if the repository is not in a clean
166         # annotated or signed tagged state (as git describe only
167         # looks at signed or annotated tags - git tag -a/-s) and
168         # LOCALVERSION= is not specified
169         if test "${LOCALVERSION+set}" != "set"; then
170                 scm=$(scm_version --short)
171                 res="$res${scm:++}"
172         fi
173 fi
174
175 echo "$res"