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Hide stderr when probing for previous tags

Probing for a -v0 tag is likely to fail.  Hide the git stderr output so
the user is not alarmed.

Signed-off-by: Stefan Hajnoczi <>
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commit c978b51b0ab4537a6ad0375c103bf5e94243a865 1 parent cae3095
@stefanha authored
Showing with 10 additions and 1 deletion.
  1. +10 −1 git-publish
11 git-publish
@@ -37,6 +37,14 @@ def _git(*args):
cmd = subprocess.Popen(['git'] + list(args), stdout=subprocess.PIPE)
return cmd.communicate()[0].split(os.linesep)[:-1]
+def _git_with_stderr(*args):
+ '''Run a git command and return a list of lines for stdout and stderr'''
+ if DEBUG:
+ print 'git ' + ' '.join(args)
+ cmd = subprocess.Popen(['git'] + list(args), stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+ stdout, stderr = cmd.communicate()
+ return stdout.split(os.linesep)[:-1], stderr.split(os.linesep)[:-1]
def git_get_current_branch():
for line in _git('branch', '--no-color'):
if '*' in line:
@@ -51,7 +59,8 @@ def git_get_tags(pattern=None):
def git_get_tag_message(tag):
message = []
- for line in _git('show', '--raw', '--no-color', tag)[4:]:
+ # Hide stderr when tag does not exist
+ for line in _git_with_stderr('show', '--raw', '--no-color', tag)[0][4:]:
if line.startswith('commit '):
return message
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