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git p4: catch p4 errors when streaming file contents

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Error messages that arise during the "p4 print" phase of
generating commits were silently ignored.  Catch them,
abort the fast-import, and exit.

Without this fix, the sync/clone appears to work, but files that
are inaccessible by the p4d server will still be imported to git,
although without the proper contents.  Instead the errant files
will contain a p4 error message, such as "Librarian checkout
//depot/path failed".

Signed-off-by: Pete Wyckoff <pw@padd.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Pete Wyckoff 2012-11-23 17:35:36 -05:00 committed by Junio C Hamano
parent 249da4c0dc
commit 78189bead3
2 changed files with 43 additions and 8 deletions
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38
git-p4.py
View File

@ -2139,6 +2139,29 @@ class P4Sync(Command, P4UserMap):
# handle another chunk of streaming data
def streamP4FilesCb(self, marshalled):
# catch p4 errors and complain
err = None
if "code" in marshalled:
if marshalled["code"] == "error":
if "data" in marshalled:
err = marshalled["data"].rstrip()
if err:
f = None
if self.stream_have_file_info:
if "depotFile" in self.stream_file:
f = self.stream_file["depotFile"]
# force a failure in fast-import, else an empty
# commit will be made
self.gitStream.write("\n")
self.gitStream.write("die-now\n")
self.gitStream.close()
# ignore errors, but make sure it exits first
self.importProcess.wait()
if f:
die("Error from p4 print for %s: %s" % (f, err))
else:
die("Error from p4 print: %s" % err)
if marshalled.has_key('depotFile') and self.stream_have_file_info:
# start of a new file - output the old one first
self.streamOneP4File(self.stream_file, self.stream_contents)
@ -2900,12 +2923,13 @@ class P4Sync(Command, P4UserMap):
self.tz = "%+03d%02d" % (- time.timezone / 3600, ((- time.timezone % 3600) / 60))
importProcess = subprocess.Popen(["git", "fast-import"],
stdin=subprocess.PIPE, stdout=subprocess.PIPE,
stderr=subprocess.PIPE);
self.gitOutput = importProcess.stdout
self.gitStream = importProcess.stdin
self.gitError = importProcess.stderr
self.importProcess = subprocess.Popen(["git", "fast-import"],
stdin=subprocess.PIPE,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE);
self.gitOutput = self.importProcess.stdout
self.gitStream = self.importProcess.stdin
self.gitError = self.importProcess.stderr
if revision:
self.importHeadRevision(revision)
@ -2965,7 +2989,7 @@ class P4Sync(Command, P4UserMap):
self.importP4Labels(self.gitStream, missingP4Labels)
self.gitStream.close()
if importProcess.wait() != 0:
if self.importProcess.wait() != 0:
die("fast-import failed: %s" % self.gitError.read())
self.gitOutput.close()
self.gitError.close()

13
t/t9800-git-p4-basic.sh
View File

@ -143,7 +143,18 @@ test_expect_success 'exit when p4 fails to produce marshaled output' '
! test_i18ngrep Traceback errs
'
test_expect_success 'clone bare' '
# Hide a file from p4d, make sure we catch its complaint. This won't fail in
# p4 changes, files, or describe; just in p4 print. If P4CLIENT is unset, the
# message will include "Librarian checkout".
test_expect_success 'exit gracefully for p4 server errors' '
test_when_finished "mv \"$db\"/depot/file1,v,hidden \"$db\"/depot/file1,v" &&
mv "$db"/depot/file1,v "$db"/depot/file1,v,hidden &&
test_when_finished cleanup_git &&
test_expect_code 1 git p4 clone --dest="$git" //depot@1 >out 2>err &&
test_i18ngrep "Error from p4 print" err
'
test_expect_success 'clone --bare should make a bare repository' '
rm -rf "$git" &&
git p4 clone --dest="$git" --bare //depot &&
test_when_finished cleanup_git &&