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-rw-r--r--python/clidef.py2
-rw-r--r--python/clippy/__init__.py15
2 files changed, 13 insertions, 4 deletions
diff --git a/python/clidef.py b/python/clidef.py
index 8e3c7595b..aa6cd18b8 100644
--- a/python/clidef.py
+++ b/python/clidef.py
@@ -257,4 +257,4 @@ if __name__ == '__main__':
process_file(args.cfile, ofd, dumpfd, args.all_defun)
if args.o is not None:
- clippy.wrdiff(args.o, ofd)
+ clippy.wrdiff(args.o, ofd, [args.cfile, os.path.realpath(__file__)])
diff --git a/python/clippy/__init__.py b/python/clippy/__init__.py
index 82aa9495d..41aeae6b4 100644
--- a/python/clippy/__init__.py
+++ b/python/clippy/__init__.py
@@ -16,6 +16,7 @@
# with this program; see the file COPYING; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+import os, stat
import _clippy
from _clippy import parse, Graph, GraphNode
@@ -47,7 +48,7 @@ def dump(graph):
for i, depth in graph_iterate(graph):
print('\t%s%s %r' % (' ' * (depth * 2), i.type, i.text))
-def wrdiff(filename, buf):
+def wrdiff(filename, buf, reffiles = []):
'''write buffer to file if contents changed'''
expl = ''
@@ -57,8 +58,16 @@ def wrdiff(filename, buf):
try: old = open(filename, 'r').read()
except: pass
if old == buf:
+ for reffile in reffiles:
+ # ensure output timestamp is newer than inputs, for make
+ reftime = os.stat(reffile)[stat.ST_MTIME]
+ outtime = os.stat(filename)[stat.ST_MTIME]
+ if outtime <= reftime:
+ os.utime(filename, (reftime + 1, reftime + 1))
# sys.stderr.write('%s unchanged, not written\n' % (filename))
return
- with open('.new.' + filename, 'w') as out:
+
+ newname = '%s.new-%d' % (filename, os.getpid())
+ with open(newname, 'w') as out:
out.write(buf)
- os.rename('.new.' + filename, filename)
+ os.rename(newname, filename)