diff options
Diffstat (limited to 'src/SConscript')
| -rw-r--r-- | src/SConscript | 49 |
1 files changed, 48 insertions, 1 deletions
diff --git a/src/SConscript b/src/SConscript index 4ba0a32d669..d861af8e4d7 100644 --- a/src/SConscript +++ b/src/SConscript @@ -1,5 +1,8 @@ -Import('*') +import filecmp +import os +import subprocess +Import('*') if env['platform'] == 'windows': SConscript('getopt/SConscript') @@ -12,6 +15,50 @@ if env['hostonly']: # compilation Return() + +def write_git_sha1_h_file(filename): + """Mesa looks for a git_sha1.h file at compile time in order to display + the current git hash id in the GL_VERSION string. This function tries + to retrieve the git hashid and write the header file. An empty file + will be created if anything goes wrong.""" + + args = [ 'git', 'rev-parse', '--short=10', 'HEAD' ] + try: + (commit, foo) = subprocess.Popen(args, stdout=subprocess.PIPE).communicate() + except: + print "Warning: exception in write_git_sha1_h_file()" + # git log command didn't work + if not os.path.exists(filename): + dirname = os.path.dirname(filename) + if dirname and not os.path.exists(dirname): + os.makedirs(dirname) + # create an empty file if none already exists + f = open(filename, "w") + f.close() + return + + # note that commit[:-1] removes the trailing newline character + commit = '#define MESA_GIT_SHA1 "git-%s"\n' % commit[:-1] + tempfile = "git_sha1.h.tmp" + f = open(tempfile, "w") + f.write(commit) + f.close() + if not os.path.exists(filename) or not filecmp.cmp(tempfile, filename): + # The filename does not exist or it's different from the new file, + # so replace old file with new. + if os.path.exists(filename): + os.remove(filename) + os.rename(tempfile, filename) + return + + +# Create the git_sha1.h header file +write_git_sha1_h_file("git_sha1.h") +# and update CPPPATH so the git_sha1.h header can be found +env.Append(CPPPATH = ["#" + env['build_dir']]) + + + if env['platform'] != 'windows': SConscript('loader/SConscript') |