1 #!/bin/sh 1 #!/bin/sh
2 # SPDX-License-Identifier: GPL-2.0 2 # SPDX-License-Identifier: GPL-2.0
3 # 3 #
4 # This scripts adds local version information 4 # This scripts adds local version information from the version
5 # control system git. !! 5 # control systems git, mercurial (hg) and subversion (svn).
6 # 6 #
7 # If something goes wrong, send a mail the ker 7 # If something goes wrong, send a mail the kernel build mailinglist
8 # (see MAINTAINERS) and CC Nico Schottelius 8 # (see MAINTAINERS) and CC Nico Schottelius
9 # <nico-linuxsetlocalversion -at- schottelius. 9 # <nico-linuxsetlocalversion -at- schottelius.org>.
10 # 10 #
11 # 11 #
12 12
13 usage() { 13 usage() {
14 echo "Usage: $0 [--no-local] [srctree] !! 14 echo "Usage: $0 [--save-scmversion] [srctree]" >&2
15 exit 1 15 exit 1
16 } 16 }
17 17
18 no_local=false !! 18 scm_only=false
19 if test "$1" = "--no-local"; then !! 19 srctree=.
20 no_local=true !! 20 if test "$1" = "--save-scmversion"; then
>> 21 scm_only=true
21 shift 22 shift
22 fi 23 fi
23 <<
24 srctree=. <<
25 if test $# -gt 0; then 24 if test $# -gt 0; then
26 srctree=$1 25 srctree=$1
27 shift 26 shift
28 fi 27 fi
29 if test $# -gt 0 -o ! -d "$srctree"; then 28 if test $# -gt 0 -o ! -d "$srctree"; then
30 usage 29 usage
31 fi 30 fi
32 31
33 scm_version() 32 scm_version()
34 { 33 {
35 local short=false !! 34 local short
36 local no_dirty=false !! 35 short=false
37 local tag <<
38 <<
39 while [ $# -gt 0 ]; <<
40 do <<
41 case "$1" in <<
42 --short) <<
43 short=true;; <<
44 --no-dirty) <<
45 no_dirty=true;; <<
46 esac <<
47 shift <<
48 done <<
49 36
50 cd "$srctree" 37 cd "$srctree"
51 !! 38 if test -e .scmversion; then
52 if test -n "$(git rev-parse --show-cdu !! 39 cat .scmversion
53 return <<
54 fi <<
55 <<
56 if ! head=$(git rev-parse --verify HEA <<
57 return 40 return
58 fi 41 fi
59 !! 42 if test "$1" = "--short"; then
60 # mainline kernel: 6.2.0-rc5 -> v6. !! 43 short=true
61 # stable kernel: 6.1.7 -> v6. <<
62 version_tag=v$(echo "${KERNELVERSION}" <<
63 <<
64 # If a localversion* file exists, and <<
65 # annotated tag exists and is an ances <<
66 # it. This is the case in linux-next. <<
67 tag=${file_localversion#-} <<
68 desc= <<
69 if [ -n "${tag}" ]; then <<
70 desc=$(git describe --match=$t <<
71 fi <<
72 <<
73 # Otherwise, if a localversion* file e <<
74 # obtained by appending it to the tag <<
75 # KERNELVERSION exists and is an ances <<
76 # it. This is e.g. the case in linux-r <<
77 if [ -z "${desc}" ] && [ -n "${file_lo <<
78 tag="${version_tag}${file_loca <<
79 desc=$(git describe --match=$t <<
80 fi 44 fi
81 45
82 # Otherwise, default to the annotated !! 46 # Check for git and a git repo.
83 if [ -z "${desc}" ]; then !! 47 if test -z "$(git rev-parse --show-cdup 2>/dev/null)" &&
84 tag="${version_tag}" !! 48 head=$(git rev-parse --verify HEAD 2>/dev/null); then
85 desc=$(git describe --match=$t !! 49
86 fi !! 50 # If we are at a tagged commit (like "v2.6.30-rc6"), we ignore
>> 51 # it, because this version is defined in the top level Makefile.
>> 52 if [ -z "$(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", $(NF-1))}'
>> 64 fi
87 65
88 # If we are at the tagged commit, we i !! 66 # Add -g and exactly 12 hex chars.
89 # well-defined. !! 67 printf '%s%s' -g "$(echo $head | cut -c1-12)"
90 if [ "${tag}" != "${desc}" ]; then <<
91 <<
92 # If only the short version is <<
93 # running further git commands <<
94 if $short; then <<
95 echo "+" <<
96 return <<
97 fi <<
98 # If we are past the tagged co <<
99 # (like 6.1.0-14595-g292a089d7 <<
100 if [ -n "${desc}" ]; then <<
101 echo "${desc}" | awk - <<
102 fi 68 fi
103 69
104 # Add -g and exactly 12 hex ch !! 70 # Check for uncommitted changes.
105 printf '%s%s' -g "$(echo $head !! 71 # This script must avoid any write attempt to the source tree,
106 fi !! 72 # which might be read-only.
107 !! 73 # You cannot use 'git describe --dirty' because it tries to
108 if ${no_dirty}; then !! 74 # create .git/index.lock .
109 return !! 75 # First, with git-status, but --no-optional-locks is only
110 fi !! 76 # supported in git >= 2.14, so fall back to git-diff-index if
111 !! 77 # it fails. Note that git-diff-index does not refresh the
112 # Check for uncommitted changes. !! 78 # index, so it may give misleading results. See
113 # This script must avoid any write att !! 79 # git-update-index(1), git-diff-index(1), and git-status(1).
114 # might be read-only. !! 80 if {
115 # You cannot use 'git describe --dirty !! 81 git --no-optional-locks status -uno --porcelain 2>/dev/null ||
116 # .git/index.lock . !! 82 git diff-index --name-only HEAD
117 # First, with git-status, but --no-opt !! 83 } | read dummy; then
118 # git >= 2.14, so fall back to git-dif !! 84 printf '%s' -dirty
119 # git-diff-index does not refresh the !! 85 fi
120 # results. <<
121 # See git-update-index(1), git-diff-in <<
122 if { <<
123 git --no-optional-locks status <<
124 git diff-index --name-only HEA <<
125 } | read dummy; then <<
126 printf '%s' -dirty <<
127 fi 86 fi
128 } 87 }
129 88
130 collect_files() 89 collect_files()
131 { 90 {
132 local file res= 91 local file res=
133 92
134 for file; do 93 for file; do
135 case "$file" in 94 case "$file" in
136 *\~*) 95 *\~*)
137 continue 96 continue
138 ;; 97 ;;
139 esac 98 esac
140 if test -e "$file"; then 99 if test -e "$file"; then
141 res="$res$(cat "$file" 100 res="$res$(cat "$file")"
142 fi 101 fi
143 done 102 done
144 echo "$res" 103 echo "$res"
145 } 104 }
146 105
147 if [ -z "${KERNELVERSION}" ]; then !! 106 if $scm_only; then
148 echo "KERNELVERSION is not set" >&2 !! 107 if test ! -e .scmversion; then
149 exit 1 !! 108 res=$(scm_version)
150 fi !! 109 echo "$res" >.scmversion
151 !! 110 fi
152 # localversion* files in the build and source !! 111 exit
153 file_localversion="$(collect_files localversio <<
154 if test ! "$srctree" -ef .; then <<
155 file_localversion="${file_localversion <<
156 fi <<
157 <<
158 if ${no_local}; then <<
159 echo "${KERNELVERSION}$(scm_version -- <<
160 exit 0 <<
161 fi 112 fi
162 113
163 if ! test -e include/config/auto.conf; then 114 if ! test -e include/config/auto.conf; then
164 echo "Error: kernelrelease not valid - 115 echo "Error: kernelrelease not valid - run 'make prepare' to update it" >&2
165 exit 1 116 exit 1
166 fi 117 fi
167 118
168 # version string from CONFIG_LOCALVERSION !! 119 # localversion* files in the build and source directory
>> 120 res="$(collect_files localversion*)"
>> 121 if test ! "$srctree" -ef .; then
>> 122 res="$res$(collect_files "$srctree"/localversion*)"
>> 123 fi
>> 124
>> 125 # CONFIG_LOCALVERSION and LOCALVERSION (if set)
169 config_localversion=$(sed -n 's/^CONFIG_LOCALV 126 config_localversion=$(sed -n 's/^CONFIG_LOCALVERSION=\(.*\)$/\1/p' include/config/auto.conf)
>> 127 res="${res}${config_localversion}${LOCALVERSION}"
170 128
171 # scm version string if not at the kernel vers !! 129 # scm version string if not at a tagged commit
172 if grep -q "^CONFIG_LOCALVERSION_AUTO=y$" incl 130 if grep -q "^CONFIG_LOCALVERSION_AUTO=y$" include/config/auto.conf; then
173 # full scm version string 131 # full scm version string
174 scm_version="$(scm_version)" !! 132 res="$res$(scm_version)"
175 elif [ "${LOCALVERSION+set}" != "set" ]; then 133 elif [ "${LOCALVERSION+set}" != "set" ]; then
176 # If the variable LOCALVERSION is not 134 # If the variable LOCALVERSION is not set, append a plus
177 # sign if the repository is not in a c 135 # sign if the repository is not in a clean annotated or
178 # signed tagged state (as git describe 136 # signed tagged state (as git describe only looks at signed
179 # or annotated tags - git tag -a/-s). 137 # or annotated tags - git tag -a/-s).
180 # 138 #
181 # If the variable LOCALVERSION is set 139 # If the variable LOCALVERSION is set (including being set
182 # to an empty string), we don't want t 140 # to an empty string), we don't want to append a plus sign.
183 scm_version="$(scm_version --short)" !! 141 scm=$(scm_version --short)
>> 142 res="$res${scm:++}"
184 fi 143 fi
185 144
186 echo "${KERNELVERSION}${file_localversion}${co !! 145 echo "$res"
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