Merge branch 'for_3.2/gpio-cleanup' of git://gitorious.org/khilman/linux-omap-pm...
[platform/kernel/linux-rpi.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 $head`"
72                 fi
73
74                 # Update index only on r/w media
75                 [ -w . ] && git update-index --refresh --unmerged > /dev/null
76
77                 # Check for uncommitted changes
78                 if git diff-index --name-only HEAD | grep -v "^scripts/package" \
79                     | read dummy; then
80                         printf '%s' -dirty
81                 fi
82
83                 # All done with git
84                 return
85         fi
86
87         # Check for mercurial and a mercurial repo.
88         if test -d .hg && hgid=`hg id 2>/dev/null`; then
89                 # Do we have an tagged version?  If so, latesttagdistance == 1
90                 if [ "`hg log -r . --template '{latesttagdistance}'`" == "1" ]; then
91                         id=`hg log -r . --template '{latesttag}'`
92                         printf '%s%s' -hg "$id"
93                 else
94                         tag=`printf '%s' "$hgid" | cut -d' ' -f2`
95                         if [ -z "$tag" -o "$tag" = tip ]; then
96                                 id=`printf '%s' "$hgid" | sed 's/[+ ].*//'`
97                                 printf '%s%s' -hg "$id"
98                         fi
99                 fi
100
101                 # Are there uncommitted changes?
102                 # These are represented by + after the changeset id.
103                 case "$hgid" in
104                         *+|*+\ *) printf '%s' -dirty ;;
105                 esac
106
107                 # All done with mercurial
108                 return
109         fi
110
111         # Check for svn and a svn repo.
112         if rev=`svn info 2>/dev/null | grep '^Last Changed Rev'`; then
113                 rev=`echo $rev | awk '{print $NF}'`
114                 printf -- '-svn%s' "$rev"
115
116                 # All done with svn
117                 return
118         fi
119 }
120
121 collect_files()
122 {
123         local file res
124
125         for file; do
126                 case "$file" in
127                 *\~*)
128                         continue
129                         ;;
130                 esac
131                 if test -e "$file"; then
132                         res="$res$(cat "$file")"
133                 fi
134         done
135         echo "$res"
136 }
137
138 if $scm_only; then
139         if test ! -e .scmversion; then
140                 res=$(scm_version)
141                 echo "$res" >.scmversion
142         fi
143         exit
144 fi
145
146 if test -e include/config/auto.conf; then
147         . include/config/auto.conf
148 else
149         echo "Error: kernelrelease not valid - run 'make prepare' to update it"
150         exit 1
151 fi
152
153 # localversion* files in the build and source directory
154 res="$(collect_files localversion*)"
155 if test ! "$srctree" -ef .; then
156         res="$res$(collect_files "$srctree"/localversion*)"
157 fi
158
159 # CONFIG_LOCALVERSION and LOCALVERSION (if set)
160 res="${res}${CONFIG_LOCALVERSION}${LOCALVERSION}"
161
162 # scm version string if not at a tagged commit
163 if test "$CONFIG_LOCALVERSION_AUTO" = "y"; then
164         # full scm version string
165         res="$res$(scm_version)"
166 else
167         # append a plus sign if the repository is not in a clean
168         # annotated or signed tagged state (as git describe only
169         # looks at signed or annotated tags - git tag -a/-s) and
170         # LOCALVERSION= is not specified
171         if test "${LOCALVERSION+set}" != "set"; then
172                 scm=$(scm_version --short)
173                 res="$res${scm:++}"
174         fi
175 fi
176
177 echo "$res"