Commit | Line | Data |
---|---|---|
117a93db | 1 | #!/bin/sh |
b2441318 | 2 | # SPDX-License-Identifier: GPL-2.0 |
33252572 NS |
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 | # | |
aaebf433 | 12 | |
117a93db | 13 | usage() { |
b003afe3 | 14 | echo "Usage: $0 [--save-scmversion] [srctree]" >&2 |
117a93db | 15 | exit 1 |
aaebf433 RA |
16 | } |
17 | ||
09155120 MM |
18 | scm_only=false |
19 | srctree=. | |
b003afe3 | 20 | if test "$1" = "--save-scmversion"; then |
09155120 MM |
21 | scm_only=true |
22 | shift | |
23 | fi | |
24 | if test $# -gt 0; then | |
25 | srctree=$1 | |
26 | shift | |
27 | fi | |
28 | if test $# -gt 0 -o ! -d "$srctree"; then | |
29 | usage | |
30 | fi | |
aaebf433 | 31 | |
09155120 MM |
32 | scm_version() |
33 | { | |
6dc0c2f3 MG |
34 | local short |
35 | short=false | |
33252572 | 36 | |
09155120 MM |
37 | cd "$srctree" |
38 | if test -e .scmversion; then | |
6dc0c2f3 | 39 | cat .scmversion |
09155120 MM |
40 | return |
41 | fi | |
42 | if test "$1" = "--short"; then | |
43 | short=true | |
44 | fi | |
33252572 | 45 | |
09155120 | 46 | # Check for git and a git repo. |
7593e090 | 47 | if test -z "$(git rev-parse --show-cdup 2>/dev/null)" && |
548b8b51 | 48 | head=$(git rev-parse --verify HEAD 2>/dev/null); then |
09155120 MM |
49 | |
50 | # If we are at a tagged commit (like "v2.6.30-rc6"), we ignore | |
51 | # it, because this version is defined in the top level Makefile. | |
3c96bdd0 | 52 | if [ -z "$(git describe --exact-match 2>/dev/null)" ]; then |
09155120 MM |
53 | |
54 | # If only the short version is requested, don't bother | |
55 | # running further git commands | |
56 | if $short; then | |
57 | echo "+" | |
58 | return | |
59 | fi | |
60 | # If we are past a tagged commit (like | |
61 | # "v2.6.30-rc5-302-g72357d5"), we pretty print it. | |
630ff0fa MY |
62 | if atag="$(git describe 2>/dev/null)"; then |
63 | echo "$atag" | awk -F- '{printf("-%05d", $(NF-1))}' | |
09155120 | 64 | fi |
630ff0fa MY |
65 | |
66 | # Add -g and exactly 12 hex chars. | |
67 | printf '%s%s' -g "$(echo $head | cut -c1-12)" | |
09155120 | 68 | fi |
33252572 | 69 | |
ff64dd48 | 70 | # Check for uncommitted changes. |
ffaf62a8 MY |
71 | # This script must avoid any write attempt to the source tree, |
72 | # which might be read-only. | |
73 | # You cannot use 'git describe --dirty' because it tries to | |
74 | # create .git/index.lock . | |
ff64dd48 BN |
75 | # First, with git-status, but --no-optional-locks is only |
76 | # supported in git >= 2.14, so fall back to git-diff-index if | |
77 | # it fails. Note that git-diff-index does not refresh the | |
78 | # index, so it may give misleading results. See | |
79 | # git-update-index(1), git-diff-index(1), and git-status(1). | |
80 | if { | |
81 | git --no-optional-locks status -uno --porcelain 2>/dev/null || | |
82 | git diff-index --name-only HEAD | |
a2be76a3 | 83 | } | read dummy; then |
09155120 MM |
84 | printf '%s' -dirty |
85 | fi | |
09155120 MM |
86 | fi |
87 | } | |
88 | ||
89 | collect_files() | |
90 | { | |
7a82e3fa | 91 | local file res= |
09155120 MM |
92 | |
93 | for file; do | |
94 | case "$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 | ||
106 | if $scm_only; then | |
b003afe3 MM |
107 | if test ! -e .scmversion; then |
108 | res=$(scm_version) | |
109 | echo "$res" >.scmversion | |
110 | fi | |
3dce174c | 111 | exit |
117a93db | 112 | fi |
ba3d05fb | 113 | |
7d153696 | 114 | if ! test -e include/config/auto.conf; then |
78283edf | 115 | echo "Error: kernelrelease not valid - run 'make prepare' to update it" >&2 |
09155120 MM |
116 | exit 1 |
117 | fi | |
ba3d05fb | 118 | |
09155120 MM |
119 | # localversion* files in the build and source directory |
120 | res="$(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) | |
129ab0d2 | 126 | config_localversion=$(sed -n 's/^CONFIG_LOCALVERSION=\(.*\)$/\1/p' include/config/auto.conf) |
7d153696 | 127 | res="${res}${config_localversion}${LOCALVERSION}" |
09155120 MM |
128 | |
129 | # scm version string if not at a tagged commit | |
7d153696 | 130 | if grep -q "^CONFIG_LOCALVERSION_AUTO=y$" include/config/auto.conf; then |
09155120 MM |
131 | # full scm version string |
132 | res="$res$(scm_version)" | |
5df99bec MP |
133 | elif [ "${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. | |
042da426 MY |
141 | scm=$(scm_version --short) |
142 | res="$res${scm:++}" | |
ba3d05fb | 143 | fi |
09155120 MM |
144 | |
145 | echo "$res" |