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