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setlocalversion
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#!
/bin/sh
#
#
This scripts adds local version information from the version
#
control systems git, mercurial (hg) and subversion (svn).
#
#
If something goes wrong, send a mail the kernel build mailinglist
#
(see MAINTAINERS) and CC Nico Schottelius
#
<nico-linuxsetlocalversion -at- schottelius.org>.
#
#
usage
() {
echo
"
Usage:
$0
[--save-scmversion] [srctree]
"
>&2
exit
1
}
scm_only=false
srctree=.
if
test
"
$1
"
=
"
--save-scmversion
"
;
then
scm_only=true
shift
fi
if
test
$#
-gt 0
;
then
srctree=
$1
shift
fi
if
test
$#
-gt 0 -o
!
-d
"
$srctree
"
;
then
usage
fi
scm_version
()
{
local
short
short=false
cd
"
$srctree
"
if
test
-e .scmversion
;
then
cat .scmversion
return
fi
if
test
"
$1
"
=
"
--short
"
;
then
short=true
fi
#
Check for git and a git repo.
if
test
-d .git
&&
head=
`
git rev-parse --verify --short HEAD
2>
/dev/null
`
;
then
#
If we are at a tagged commit (like "v2.6.30-rc6"), we ignore
#
it, because this version is defined in the top level Makefile.
if
atag=
"
`
git describe --exact-match --abbrev=0
2>
/dev/null
`
"
;
then
#
Make sure we're at the tag that matches the Makefile.
#
If not place the hash of the tag as well for
#
v2.6.30-rc5-g314aef
if
[
"
x
$atag
"
!=
"
x
$VERSION
"
]
;
then
#
If only the short version is requested,
#
don't bother running further git commands
if
$short
;
then
echo
"
+
"
return
fi
printf
'
%s%s
'
-g
"
`
git show-ref -s --abbrev --tags
$atag
2>
/dev/null
`
"
fi
else
#
If only the short version is requested, don't bother
#
running further git commands
if
$short
;
then
echo
"
+
"
return
fi
#
If we are past a tagged commit (like
#
"v2.6.30-rc5-302-g72357d5"), we pretty print it and
#
include the hash of any new tag on top.
if
atag=
"
`
git describe
2>
/dev/null
`
"
;
then
tag=
"
`
git describe --abbrev=0
2>
/dev/null
`
"
commit=
"
`
echo
"
$atag
"
|
awk -F-
'
{printf("-%05d-%s", $(NF-1),$(NF))}
'
`
"
printf
'
%s%s%s
'
-g
"
`
git show-ref -s --abbrev --tags
$tag
2>
/dev/null
`
"
$commit
#
If we don't have a tag at all we print -g{commitish}.
else
printf
'
%s%s
'
-g
$head
fi
fi
#
Is this git on svn?
if
git config --get svn-remote.svn.url
>
/dev/null
;
then
printf
--
'
-svn%s
'
"
`
git svn find-rev
$head
`
"
fi
#
Update index only on r/w media
[
-w
.
]
&&
git update-index --refresh --unmerged
>
/dev/null
#
Check for uncommitted changes
if
git diff-index --name-only HEAD
|
grep -qv
"
^scripts/package
"
;
then
printf
'
%s
'
-dirty
fi
#
All done with git
return
fi
#
Check for mercurial and a mercurial repo.
if
test
-d .hg
&&
hgid=
`
hg id
2>
/dev/null
`
;
then
#
Do we have an tagged version? If so, latesttagdistance == 1
if
[
"
`
hg log -r
.
--template
'
{latesttagdistance}
'
`
"
==
"
1
"
]
;
then
id=
`
hg log -r
.
--template
'
{latesttag}
'
`
printf
'
%s%s
'
-hg
"
$id
"
else
tag=
`
printf
'
%s
'
"
$hgid
"
|
cut -d
'
'
-f2
`
if
[
-z
"
$tag
"
-o
"
$tag
"
=
tip ]
;
then
id=
`
printf
'
%s
'
"
$hgid
"
|
sed
'
s/[+ ].*//
'
`
printf
'
%s%s
'
-hg
"
$id
"
fi
fi
#
Are there uncommitted changes?
#
These are represented by + after the changeset id.
case
"
$hgid
"
in
*
+|
*
+
\
*
)
printf
'
%s
'
-dirty ;;
esac
#
All done with mercurial
return
fi
#
Check for svn and a svn repo.
if
rev=
`
svn info
2>
/dev/null
|
grep
'
^Last Changed Rev
'
`
;
then
rev=
`
echo
$rev
|
awk
'
{print $NF}
'
`
printf
--
'
-svn%s
'
"
$rev
"
#
All done with svn
return
fi
}
collect_files
()
{
local
file res
for
file
;
do
case
"
$file
"
in
*
\~
*
)
continue
;;
esac
if
test
-e
"
$file
"
;
then
res=
"
$res
$(
cat
"
$file
"
)
"
fi
done
echo
"
$res
"
}
if
$scm_only
;
then
if
test
!
-e .scmversion
;
then
res=
$(
scm_version
)
echo
"
$res
"
>
.scmversion
fi
exit
fi
if
test
-e include/config/auto.conf
;
then
.
include/config/auto.conf
else
echo
"
Error: kernelrelease not valid - run 'make prepare' to update it
"
exit
1
fi
#
localversion* files in the build and source directory
res=
"
$(
collect_files localversion
*
)
"
if
test
!
"
$srctree
"
-ef
.
;
then
res=
"
$res
$(
collect_files
"
$srctree
"
/localversion
*
)
"
fi
#
CONFIG_LOCALVERSION and LOCALVERSION (if set)
res=
"
${res}${CONFIG_LOCALVERSION}${LOCALVERSION}
"
#
scm version string if not at a tagged commit
if
test
"
$CONFIG_LOCALVERSION_AUTO
"
=
"
y
"
;
then
#
full scm version string
res=
"
$res
$(
scm_version
)
"
else
#
append a plus sign if the repository is not in a clean
#
annotated or signed tagged state (as git describe only
#
looks at signed or annotated tags - git tag -a/-s) and
#
LOCALVERSION= is not specified
if
test
"
${LOCALVERSION+set}
"
!
=
"
set
"
;
then
scm=
$(
scm_version --short
)
res=
"
$res
${scm
:
++}
"
fi
fi
echo
"
$res
"
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