setlocalversion 4.6 KB

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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. usage() {
  13. echo "Usage: $0 [--save-scmversion] [srctree]" >&2
  14. exit 1
  15. }
  16. scm_only=false
  17. srctree=.
  18. if test "$1" = "--save-scmversion"; then
  19. scm_only=true
  20. shift
  21. fi
  22. if test $# -gt 0; then
  23. srctree=$1
  24. shift
  25. fi
  26. if test $# -gt 0 -o ! -d "$srctree"; then
  27. usage
  28. fi
  29. scm_version()
  30. {
  31. local short
  32. short=false
  33. cd "$srctree"
  34. if test -e .scmversion; then
  35. cat .scmversion
  36. return
  37. fi
  38. if test "$1" = "--short"; then
  39. short=true
  40. fi
  41. # Check for git and a git repo.
  42. if test -z "$(git rev-parse --show-cdup 2>/dev/null)" &&
  43. head=$(git rev-parse --verify --short HEAD 2>/dev/null); then
  44. # If we are at a tagged commit (like "v2.6.30-rc6"), we ignore
  45. # it, because this version is defined in the top level Makefile.
  46. if [ -z "$(git describe --exact-match 2>/dev/null)" ]; then
  47. # If only the short version is requested, don't bother
  48. # running further git commands
  49. if $short; then
  50. echo "+"
  51. return
  52. fi
  53. # If we are past a tagged commit (like
  54. # "v2.6.30-rc5-302-g72357d5"), we pretty print it.
  55. if atag="$(git describe 2>/dev/null)"; then
  56. echo "$atag" | awk -F- '{printf("-%05d-%s", $(NF-1),$(NF))}'
  57. # If we don't have a tag at all we print -g{commitish}.
  58. else
  59. printf '%s%s' -g $head
  60. fi
  61. fi
  62. # Is this git on svn?
  63. if git config --get svn-remote.svn.url >/dev/null; then
  64. printf -- '-svn%s' "$(git svn find-rev $head)"
  65. fi
  66. # Check for uncommitted changes.
  67. # First, with git-status, but --no-optional-locks is only
  68. # supported in git >= 2.14, so fall back to git-diff-index if
  69. # it fails. Note that git-diff-index does not refresh the
  70. # index, so it may give misleading results. See
  71. # git-update-index(1), git-diff-index(1), and git-status(1).
  72. if {
  73. git --no-optional-locks status -uno --porcelain 2>/dev/null ||
  74. git diff-index --name-only HEAD
  75. } | grep -qvE '^(.. )?scripts/package'; then
  76. printf '%s' -dirty
  77. fi
  78. # All done with git
  79. return
  80. fi
  81. # Check for mercurial and a mercurial repo.
  82. if test -d .hg && hgid=$(hg id 2>/dev/null); then
  83. # Do we have an tagged version? If so, latesttagdistance == 1
  84. if [ "$(hg log -r . --template '{latesttagdistance}')" = "1" ]; then
  85. id=$(hg log -r . --template '{latesttag}')
  86. printf '%s%s' -hg "$id"
  87. else
  88. tag=$(printf '%s' "$hgid" | cut -d' ' -f2)
  89. if [ -z "$tag" -o "$tag" = tip ]; then
  90. id=$(printf '%s' "$hgid" | sed 's/[+ ].*//')
  91. printf '%s%s' -hg "$id"
  92. fi
  93. fi
  94. # Are there uncommitted changes?
  95. # These are represented by + after the changeset id.
  96. case "$hgid" in
  97. *+|*+\ *) printf '%s' -dirty ;;
  98. esac
  99. # All done with mercurial
  100. return
  101. fi
  102. # Check for svn and a svn repo.
  103. if rev=$(LANG= LC_ALL= LC_MESSAGES=C svn info 2>/dev/null | grep '^Last Changed Rev'); then
  104. rev=$(echo $rev | awk '{print $NF}')
  105. printf -- '-svn%s' "$rev"
  106. # All done with svn
  107. return
  108. fi
  109. }
  110. collect_files()
  111. {
  112. local file res=
  113. for file; do
  114. case "$file" in
  115. *\~*)
  116. continue
  117. ;;
  118. esac
  119. if test -e "$file"; then
  120. res="$res$(cat "$file")"
  121. fi
  122. done
  123. echo "$res"
  124. }
  125. if $scm_only; then
  126. if test ! -e .scmversion; then
  127. res=$(scm_version)
  128. echo "$res" >.scmversion
  129. fi
  130. exit
  131. fi
  132. if test -e include/config/auto.conf; then
  133. # We are interested only in CONFIG_LOCALVERSION and
  134. # CONFIG_LOCALVERSION_AUTO, so extract these in a safe
  135. # way (i.e. w/o sourcing auto.conf)
  136. CONFIG_LOCALVERSION=`cat include/config/auto.conf | awk -F '=' '/^CONFIG_LOCALVERSION=/ {print $2}'`
  137. CONFIG_LOCALVERSION_AUTO=`cat include/config/auto.conf | awk -F '=' '/^CONFIG_LOCALVERSION_AUTO=/ {print $2}'`
  138. else
  139. echo "Error: kernelrelease not valid - run 'make prepare' to update it" >&2
  140. exit 1
  141. fi
  142. # localversion* files in the build and source directory
  143. res="$(collect_files localversion*)"
  144. if test ! "$srctree" -ef .; then
  145. res="$res$(collect_files "$srctree"/localversion*)"
  146. fi
  147. # CONFIG_LOCALVERSION and LOCALVERSION (if set)
  148. res="${res}${CONFIG_LOCALVERSION}${LOCALVERSION}"
  149. # scm version string if not at a tagged commit
  150. if test "$CONFIG_LOCALVERSION_AUTO" = "y"; then
  151. # full scm version string
  152. res="$res$(scm_version)"
  153. else
  154. # append a plus sign if the repository is not in a clean
  155. # annotated or signed tagged state (as git describe only
  156. # looks at signed or annotated tags - git tag -a/-s) and
  157. # LOCALVERSION= is not specified
  158. if test "${LOCALVERSION+set}" != "set"; then
  159. scm=$(scm_version --short)
  160. res="$res${scm:++}"
  161. fi
  162. fi
  163. echo "$res"