bin/extract_git_sha1

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