Merge pull request #2774 from harfbuzz/misc-doc
Doc fixes
diff --git a/src/gen-hb-version.py b/src/gen-hb-version.py
index bf16f88..879811f 100755
--- a/src/gen-hb-version.py
+++ b/src/gen-hb-version.py
@@ -2,7 +2,7 @@
"This tool is intended to be used from meson"
-import os, sys, shutil
+import os, sys, shutil, re
if len (sys.argv) < 4:
sys.exit(__doc__)
@@ -14,6 +14,15 @@
INPUT = sys.argv[3]
CURRENT_SOURCE_DIR = os.path.dirname(INPUT)
+try:
+ with open (OUTPUT, "r") as old_output:
+ for line in old_output:
+ old_version = re.match (r"#define HB_VERSION_STRING \"(\d.\d.\d)\"", line)
+ if old_version and old_version[1] == version:
+ sys.exit ()
+except IOError:
+ pass
+
with open (INPUT, "r", encoding='utf-8') as template:
with open (OUTPUT, "wb") as output:
output.write (template.read ()
