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codereview: more attempts at robustness in the face of unexpected exceptions

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R=r
https://golang.org/cl/156062
This commit is contained in:
Russ Cox 2009-11-17 23:23:18 -08:00
parent 01677dab31
commit 7db2c799ce
1 changed files with 38 additions and 35 deletions
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73
lib/codereview/codereview.py
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@ -38,7 +38,7 @@ For example, if change 123456 contains the files x.go and y.go,
from mercurial import cmdutil, commands, hg, util, error, match
from mercurial.node import nullrev, hex, nullid, short
import os, re
import os, re, time
import stat
import subprocess
import threading
@ -1031,24 +1031,28 @@ def submit(ui, repo, *pats, **opts):
if not node:
return "nothing changed"
log = repo.changelog
rev = log.rev(node)
parents = log.parentrevs(rev)
if (rev-1 not in parents and
(parents == (nullrev, nullrev) or
len(log.heads(log.node(parents[0]))) > 1 and
(parents[1] == nullrev or len(log.heads(log.node(parents[1]))) > 1))):
repo.rollback()
return "local repository out of date (created new head); must sync before submit"
# push to remote; if it fails for any reason, roll back
try:
log = repo.changelog
rev = log.rev(node)
parents = log.parentrevs(rev)
if (rev-1 not in parents and
(parents == (nullrev, nullrev) or
len(log.heads(log.node(parents[0]))) > 1 and
(parents[1] == nullrev or len(log.heads(log.node(parents[1]))) > 1))):
# created new head
raise util.Abort("local repository out of date; must sync before submit")
# push changes to remote.
# if it works, we're committed.
# if not, roll back
other = getremote(ui, repo, opts)
r = repo.push(other, False, None)
if r == 0:
# push changes to remote.
# if it works, we're committed.
# if not, roll back
other = getremote(ui, repo, opts)
r = repo.push(other, False, None)
if r == 0:
raise util.Abort("local repository out of date; must sync before submit")
except:
repo.rollback()
return "local repository out of date; must sync before submit"
raise
# we're committed. upload final patch, close review, add commit message
changeURL = short(node)
@ -1376,10 +1380,25 @@ def DownloadCL(ui, repo, clname):
return cl, diffdata, ""
def MySend(request_path, payload=None,
content_type="application/octet-stream",
timeout=None, force_auth=True,
**kwargs):
"""Run MySend1 maybe twice, because Rietveld is unreliable."""
try:
return MySend1(request_path, payload, content_type, timeout, force_auth, **kwargs)
except Exception, e:
if type(e) == urllib2.HTTPError and e.code == 403: # forbidden, it happens
raise
print >>sys.stderr, "Loading "+request_path+": "+ExceptionDetail()+"; trying again in 2 seconds."
time.sleep(2)
return MySend1(request_path, payload, content_type, timeout, force_auth, **kwargs)
# Like upload.py Send but only authenticates when the
# redirect is to www.google.com/accounts. This keeps
# unnecessary redirects from happening during testing.
def MySend(request_path, payload=None,
def MySend1(request_path, payload=None,
content_type="application/octet-stream",
timeout=None, force_auth=True,
**kwargs):
@ -1523,23 +1542,7 @@ def PostMessage1(issue, message, reviewers=None, cc=None, send_mail=None, subjec
sys.exit(2)
def PostMessage(ui, issue, message, reviewers=None, cc=None, send_mail=None, subject=None):
# When Rietveld is busy, it seems to throw off a lot of HTTP Error 500: Internal Server Error.
# Rather than abort, sleep and try again.
# Even if the second time fails, let the overall hg command keep going.
try:
PostMessage1(issue, message, reviewers, cc, send_mail, subject)
return
except:
pass
ui.warn("error posting to "+server+" log; sleep 2 and try again.")
os.sleep(2)
try:
PostMessage1(issue, message, reviewers, cc, send_mail, subject)
return
except:
pass
ui.warn("error posting to "+server+" twice; log not updated.")
PostMessage1(issue, message, reviewers, cc, send_mail, subject)
class opt(object):
pass