scons: use python3-compatible print()

[mesa.git] / src / SConscript

diff --git a/src/SConscript b/src/SConscript
index 4ba0a32d66925440b72e718547a4fe25334c7a27..a277e8b79254588e8fd4dc5e1d8fad2e4ef340a3 100644 (file)
--- a/src/SConscript
+++ b/src/SConscript
@@ -1,9 +1,14 @@
-Import('*')
+import filecmp
+import os
+import subprocess
+from sys import executable as python_cmd
 
+Import('*')
 
 if env['platform'] == 'windows':
     SConscript('getopt/SConscript')
 
+SConscript('util/xmlpool/SConscript')
 SConscript('util/SConscript')
 SConscript('compiler/SConscript')
 
@@ -12,6 +17,38 @@ 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."""
+
+    tempfile = "git_sha1.h.tmp"
+    with open(tempfile, "w") as f:
+        args = [ python_cmd, Dir('#').abspath + '/bin/git_sha1_gen.py' ]
+        try:
+            subprocess.Popen(args, stdout=f).wait()
+        except:
+            print("Warning: exception in write_git_sha1_h_file()")
+            return
+
+    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')