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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
13usage() {
14 echo "Usage: $0 [--save-scmversion] [srctree]" >&2
15 exit 1
16}
17
18scm_only=false
19srctree=.
20if test "$1" = "--save-scmversion"; then
21 scm_only=true
22 shift
23fi
24if test $# -gt 0; then
25 srctree=$1
26 shift
27fi
28if test $# -gt 0 -o ! -d "$srctree"; then
29 usage
30fi
31
32scm_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=$(git rev-parse --verify HEAD 2>/dev/null); then
49
50 # If we are at a tagged commit (like "v2.6.30-rc6"), we ignore
51 # it, because this version is defined in the top level Makefile.
52 if [ -z "$(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", $(NF-1))}'
64 fi
65
66 # Add -g and exactly 12 hex chars.
67 printf '%s%s' -g "$(echo $head | cut -c1-12)"
68 fi
69
70 # Check for uncommitted changes.
71 # This script must avoid any write attempt to the source tree,
72 # which might be read-only.
73 # You cannot use 'git describe --dirty' because it tries to
74 # create .git/index.lock .
75 # First, with git-status, but --no-optional-locks is only
76 # supported in git >= 2.14, so fall back to git-diff-index if
77 # it fails. Note that git-diff-index does not refresh the
78 # index, so it may give misleading results. See
79 # git-update-index(1), git-diff-index(1), and git-status(1).
80 if {
81 git --no-optional-locks status -uno --porcelain 2>/dev/null ||
82 git diff-index --name-only HEAD
83 } | read dummy; then
84 printf '%s' -dirty
85 fi
86 fi
87}
88
89collect_files()
90{
91 local file res=
92
93 for file; do
94 case "$file" in
95 *\~*)
96 continue
97 ;;
98 esac
99 if test -e "$file"; then
100 res="$res$(cat "$file")"
101 fi
102 done
103 echo "$res"
104}
105
106if $scm_only; then
107 if test ! -e .scmversion; then
108 res=$(scm_version)
109 echo "$res" >.scmversion
110 fi
111 exit
112fi
113
114if ! test -e include/config/auto.conf; then
115 echo "Error: kernelrelease not valid - run 'make prepare' to update it" >&2
116 exit 1
117fi
118
119# localversion* files in the build and source directory
120res="$(collect_files localversion*)"
121if test ! "$srctree" -ef .; then
122 res="$res$(collect_files "$srctree"/localversion*)"
123fi
124
125# CONFIG_LOCALVERSION and LOCALVERSION (if set)
126config_localversion=$(sed -n 's/^CONFIG_LOCALVERSION=\(.*\)$/\1/p' include/config/auto.conf)
127res="${res}${config_localversion}${LOCALVERSION}"
128
129# scm version string if not at a tagged commit
130if grep -q "^CONFIG_LOCALVERSION_AUTO=y$" include/config/auto.conf; then
131 # full scm version string
132 res="$res$(scm_version)"
133elif [ "${LOCALVERSION+set}" != "set" ]; then
134 # If the variable LOCALVERSION is not set, append a plus
135 # sign if the repository is not in a clean annotated or
136 # signed tagged state (as git describe only looks at signed
137 # or annotated tags - git tag -a/-s).
138 #
139 # If the variable LOCALVERSION is set (including being set
140 # to an empty string), we don't want to append a plus sign.
141 scm=$(scm_version --short)
142 res="$res${scm:++}"
143fi
144
145echo "$res"
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
13usage() {
14 echo "Usage: $0 [--save-scmversion] [srctree]" >&2
15 exit 1
16}
17
18scm_only=false
19srctree=.
20if test "$1" = "--save-scmversion"; then
21 scm_only=true
22 shift
23fi
24if test $# -gt 0; then
25 srctree=$1
26 shift
27fi
28if test $# -gt 0 -o ! -d "$srctree"; then
29 usage
30fi
31
32scm_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=$(git rev-parse --verify HEAD 2>/dev/null); then
49
50 # If we are at a tagged commit (like "v2.6.30-rc6"), we ignore
51 # it, because this version is defined in the top level Makefile.
52 if [ -z "$(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", $(NF-1))}'
64 fi
65
66 # Add -g and exactly 12 hex chars.
67 printf '%s%s' -g "$(echo $head | cut -c1-12)"
68 fi
69
70 # Check for uncommitted changes.
71 # This script must avoid any write attempt to the source tree,
72 # which might be read-only.
73 # You cannot use 'git describe --dirty' because it tries to
74 # create .git/index.lock .
75 # First, with git-status, but --no-optional-locks is only
76 # supported in git >= 2.14, so fall back to git-diff-index if
77 # it fails. Note that git-diff-index does not refresh the
78 # index, so it may give misleading results. See
79 # git-update-index(1), git-diff-index(1), and git-status(1).
80 if {
81 git --no-optional-locks status -uno --porcelain 2>/dev/null ||
82 git diff-index --name-only HEAD
83 } | read dummy; then
84 printf '%s' -dirty
85 fi
86 fi
87}
88
89collect_files()
90{
91 local file res=
92
93 for file; do
94 case "$file" in
95 *\~*)
96 continue
97 ;;
98 esac
99 if test -e "$file"; then
100 res="$res$(cat "$file")"
101 fi
102 done
103 echo "$res"
104}
105
106if $scm_only; then
107 if test ! -e .scmversion; then
108 res=$(scm_version)
109 echo "$res" >.scmversion
110 fi
111 exit
112fi
113
114if test -e include/config/auto.conf; then
115 . include/config/auto.conf
116else
117 echo "Error: kernelrelease not valid - run 'make prepare' to update it" >&2
118 exit 1
119fi
120
121# localversion* files in the build and source directory
122res="$(collect_files localversion*)"
123if test ! "$srctree" -ef .; then
124 res="$res$(collect_files "$srctree"/localversion*)"
125fi
126
127# CONFIG_LOCALVERSION and LOCALVERSION (if set)
128res="${res}${CONFIG_LOCALVERSION}${LOCALVERSION}"
129
130# scm version string if not at a tagged commit
131if test "$CONFIG_LOCALVERSION_AUTO" = "y"; then
132 # full scm version string
133 res="$res$(scm_version)"
134elif [ "${LOCALVERSION+set}" != "set" ]; then
135 # If the variable LOCALVERSION is not set, append a plus
136 # sign if the repository is not in a clean annotated or
137 # signed tagged state (as git describe only looks at signed
138 # or annotated tags - git tag -a/-s).
139 #
140 # If the variable LOCALVERSION is set (including being set
141 # to an empty string), we don't want to append a plus sign.
142 scm=$(scm_version --short)
143 res="$res${scm:++}"
144fi
145
146echo "$res"