Commit | Line | Data |
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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() { |
f6e09b07 | 14 | echo "Usage: $0 [srctree]" >&2 |
117a93db | 15 | exit 1 |
aaebf433 RA |
16 | } |
17 | ||
09155120 | 18 | srctree=. |
09155120 MM |
19 | if test $# -gt 0; then |
20 | srctree=$1 | |
21 | shift | |
22 | fi | |
23 | if test $# -gt 0 -o ! -d "$srctree"; then | |
24 | usage | |
25 | fi | |
aaebf433 | 26 | |
09155120 MM |
27 | scm_version() |
28 | { | |
6dc0c2f3 MG |
29 | local short |
30 | short=false | |
33252572 | 31 | |
09155120 | 32 | cd "$srctree" |
09155120 MM |
33 | if test "$1" = "--short"; then |
34 | short=true | |
35 | fi | |
33252572 | 36 | |
75280bdf MY |
37 | if test -n "$(git rev-parse --show-cdup 2>/dev/null)"; then |
38 | return | |
39 | fi | |
09155120 | 40 | |
75280bdf MY |
41 | if ! head=$(git rev-parse --verify HEAD 2>/dev/null); then |
42 | return | |
43 | fi | |
09155120 | 44 | |
75280bdf MY |
45 | # If we are at a tagged commit (like "v2.6.30-rc6"), we ignore it |
46 | # because this version is defined in the top level Makefile. | |
47 | if [ -z "$(git describe --exact-match 2>/dev/null)" ]; then | |
630ff0fa | 48 | |
75280bdf MY |
49 | # If only the short version is requested, don't bother |
50 | # running further git commands | |
51 | if $short; then | |
52 | echo "+" | |
53 | return | |
09155120 | 54 | fi |
75280bdf MY |
55 | # If we are past a tagged commit (like |
56 | # "v2.6.30-rc5-302-g72357d5"), we pretty print it. | |
57 | if atag="$(git describe 2>/dev/null)"; then | |
58 | echo "$atag" | awk -F- '{printf("-%05d", $(NF-1))}' | |
09155120 | 59 | fi |
75280bdf MY |
60 | |
61 | # Add -g and exactly 12 hex chars. | |
62 | printf '%s%s' -g "$(echo $head | cut -c1-12)" | |
63 | fi | |
64 | ||
65 | # Check for uncommitted changes. | |
66 | # This script must avoid any write attempt to the source tree, which | |
67 | # might be read-only. | |
68 | # You cannot use 'git describe --dirty' because it tries to create | |
69 | # .git/index.lock . | |
70 | # First, with git-status, but --no-optional-locks is only supported in | |
71 | # git >= 2.14, so fall back to git-diff-index if it fails. Note that | |
72 | # git-diff-index does not refresh the index, so it may give misleading | |
73 | # results. | |
74 | # See git-update-index(1), git-diff-index(1), and git-status(1). | |
75 | if { | |
76 | git --no-optional-locks status -uno --porcelain 2>/dev/null || | |
77 | git diff-index --name-only HEAD | |
78 | } | read dummy; then | |
79 | printf '%s' -dirty | |
09155120 MM |
80 | fi |
81 | } | |
82 | ||
83 | collect_files() | |
84 | { | |
7a82e3fa | 85 | local file res= |
09155120 MM |
86 | |
87 | for file; do | |
88 | case "$file" in | |
89 | *\~*) | |
90 | continue | |
91 | ;; | |
92 | esac | |
93 | if test -e "$file"; then | |
94 | res="$res$(cat "$file")" | |
95 | fi | |
96 | done | |
97 | echo "$res" | |
98 | } | |
99 | ||
7d153696 | 100 | if ! test -e include/config/auto.conf; then |
78283edf | 101 | echo "Error: kernelrelease not valid - run 'make prepare' to update it" >&2 |
09155120 MM |
102 | exit 1 |
103 | fi | |
ba3d05fb | 104 | |
09155120 MM |
105 | # localversion* files in the build and source directory |
106 | res="$(collect_files localversion*)" | |
107 | if test ! "$srctree" -ef .; then | |
108 | res="$res$(collect_files "$srctree"/localversion*)" | |
109 | fi | |
110 | ||
111 | # CONFIG_LOCALVERSION and LOCALVERSION (if set) | |
129ab0d2 | 112 | config_localversion=$(sed -n 's/^CONFIG_LOCALVERSION=\(.*\)$/\1/p' include/config/auto.conf) |
7d153696 | 113 | res="${res}${config_localversion}${LOCALVERSION}" |
09155120 MM |
114 | |
115 | # scm version string if not at a tagged commit | |
7d153696 | 116 | if grep -q "^CONFIG_LOCALVERSION_AUTO=y$" include/config/auto.conf; then |
09155120 MM |
117 | # full scm version string |
118 | res="$res$(scm_version)" | |
5df99bec MP |
119 | elif [ "${LOCALVERSION+set}" != "set" ]; then |
120 | # If the variable LOCALVERSION is not set, append a plus | |
121 | # sign if the repository is not in a clean annotated or | |
122 | # signed tagged state (as git describe only looks at signed | |
123 | # or annotated tags - git tag -a/-s). | |
124 | # | |
125 | # If the variable LOCALVERSION is set (including being set | |
126 | # to an empty string), we don't want to append a plus sign. | |
992ebfab | 127 | res="$res$(scm_version --short)" |
ba3d05fb | 128 | fi |
09155120 MM |
129 | |
130 | echo "$res" |