Upgrading Mesa to 9.0.3

third_party/mesa/generate_git_sha1.py

Index: third_party/mesa/generate_git_sha1.py
diff --git a/third_party/mesa/generate_git_sha1.py b/third_party/mesa/generate_git_sha1.py
new file mode 100644
index 0000000000000000000000000000000000000000..c50e8715f68a71f4addaf42553333f452a24c5fc
--- /dev/null
+++ b/third_party/mesa/generate_git_sha1.py
@@ -0,0 +1,31 @@
+import os
+import os.path
+import sys
+
+output = sys.argv[1]
+parentdir = os.path.abspath(os.path.join(output, os.pardir))
+
+#The original body of this file is generated by this bash script:
+#
+#touch "${DIR}/git_sha1.h.tmp"
+#if test -d .git; then \
+#		if which git > /dev/null; then \
+#		    git log -n 1 --oneline | \
+#			sed 's/^\([^ ]*\) .*/#define MESA_GIT_SHA1 "git-\1"/' \
+#			> "${DIR}/git_sha1.h.tmp" ; \
+#		fi \
+#	fi
+#if ! cmp -s "${DIR}/git_sha1.h.tmp" "${DIR}/git_sha1.h"; then \
+#		mv "${DIR}/git_sha1.h.tmp" "${DIR}/git_sha1.h" ;\
+#	else \
+#		rm "${DIR}/git_sha1.h.tmp" ;\
+#	fi
+#
+#However, Chromium shouldn't depend on Bash, and this preprocessor macro isn't
+#neccessary in the first place
+
+if not os.path.isdir(parentdir):
+  os.makedirs(parentdir)
+
+with open(output, "w") as f:
+  pass