soc:msm8k refactorized
[htc-msm-2-6-32:leviathan-incoming.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 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 $head`"
72                 fi
73
74                 # Update index only on r/w media
75                 [ -w . ] && git update-index --refresh --unmerged > /dev/null
76
77                 # Check for uncommitted changes
78                 if git diff-index --name-only HEAD | grep -v "^scripts/package" \
79                     | read dummy; then
80                         printf '%s' -dirty
81                 fi
82
83                 # All done with git
84                 return
85         fi
86
87         # Check for mercurial and a mercurial repo.
88         if hgid=`hg id 2>/dev/null`; then
89                 tag=`printf '%s' "$hgid" | cut -d' ' -f2`
90
91                 # Do we have an untagged version?
92                 if [ -z "$tag" -o "$tag" = tip ]; then
93                         id=`printf '%s' "$hgid" | sed 's/[+ ].*//'`
94                         printf '%s%s' -hg "$id"
95                 fi
96
97                 # Are there uncommitted changes?
98                 # These are represented by + after the changeset id.
99                 case "$hgid" in
100                         *+|*+\ *) printf '%s' -dirty ;;
101                 esac
102
103                 # All done with mercurial
104                 return
105         fi
106
107         # Check for svn and a svn repo.
108         if rev=`svn info 2>/dev/null | grep '^Last Changed Rev'`; then
109                 rev=`echo $rev | awk '{print $NF}'`
110                 printf -- '-svn%s' "$rev"
111
112                 # All done with svn
113                 return
114         fi
115 }
116
117 collect_files()
118 {
119         local file res
120
121         for file; do
122                 case "$file" in
123                 *\~*)
124                         continue
125                         ;;
126                 esac
127                 if test -e "$file"; then
128                         res="$res$(cat "$file")"
129                 fi
130         done
131         echo "$res"
132 }
133
134 if $scm_only; then
135         if test ! -e .scmversion; then
136                 res=$(scm_version)
137                 echo "$res" >.scmversion
138         fi
139         exit
140 fi
141
142 if test -e include/config/auto.conf; then
143         . include/config/auto.conf
144 else
145         echo "Error: kernelrelease not valid - run 'make prepare' to update it"
146         exit 1
147 fi
148
149 # localversion* files in the build and source directory
150 res="$(collect_files localversion*)"
151 if test ! "$srctree" -ef .; then
152         res="$res$(collect_files "$srctree"/localversion*)"
153 fi
154
155 # CONFIG_LOCALVERSION and LOCALVERSION (if set)
156 res="${res}${CONFIG_LOCALVERSION}${LOCALVERSION}"
157
158 # scm version string if not at a tagged commit
159 if test "$CONFIG_LOCALVERSION_AUTO" = "y"; then
160         # full scm version string
161         res="$res$(scm_version)"
162 fi
163
164 echo "$res"