bin/extract_git_sha1

   1 #!/bin/sh
   2 if [ ! -f src/mesa/main/git_sha1.h ]; then
   3         touch src/mesa/main/git_sha1.h
   4 fi
   5
   6 if [ ! -d .git ]; then
   7         exit
   8 fi
   9
  10 if which git > /dev/null; then
  11     # Extract the 7-digit "short" SHA1 for the current HEAD, convert
  12     # it to a string, and wrap it in a #define.  This is used in
  13     # src/mesa/main/version.c to put the GIT SHA1 in the GL_VERSION string.
  14     git log -n 1 --oneline |\
  15         sed 's/^\([^ ]*\) .*/#define MESA_GIT_SHA1 "git-\1"/' \
  16         > src/mesa/main/git_sha1.h.tmp
  17     if ! cmp -s src/mesa/main/git_sha1.h.tmp src/mesa/main/git_sha1.h; then
  18         mv src/mesa/main/git_sha1.h.tmp src/mesa/main/git_sha1.h
  19     fi
  20 fi