rebase: add boolean config item rebase.store-source
This allows to use rebase without recording a rebase_source extra
field. This is useful for example to build a mirror converted from
another SCM (such as svn) by converting only new revisions, and
then incrementally add them to the destination by pulling from the
newly converted (unrelated) repo and rebasing the new revisions
onto the last old already stored changeset. Without this patch the
rebased changesets would always receive some rebase_source that
would depend on the particular history of the conversion process,
instead of only depending on the original source revisions.
This is used to implement a hg mirror repo of SvarDOS (a partially
nonfree but completely redistributable DOS distribution) in the
scripts at https://hg.pushbx.org/ecm/svardos.scr/
In particular, cre.sh creates an svn mirror, upd.sh recreates an
entire hg repo from the svn mirror (which takes too long to do in a
regular job), and akt.sh uses hg convert with the config item
convert.svn.startrev to incrementally convert only the two most
recent revisions already found in the mirror destination plus any
possible new revisions. If any are found, the temporary repo's
changesets are pulled into the destination (as changesets from an
unrelated repository). Then the changesets corresponding to the new
revisions are rebased onto the prior final changeset. (Finally, the
two remaining duplicates of the prior head and its parent are
stripped from the destination repository.)
Without this patch, the particular rebase_source extra field would
depend on the order and times at which akt.sh was used, instead of
only depending on the source repository. In other words, whatever
sequence of upd.sh and akt.sh is used at whatever times, it is
desired that the final output repositories always match each other
exactly.
#!/usr/bin/env python3
#
# A small script to automatically reject idle Diffs
#
# you need to set the PHABBOT_USER and PHABBOT_TOKEN environment variable for authentication
import datetime
import os
import sys
import phabricator
MESSAGE = """There seems to have been no activities on this Diff for the past 3 Months.
By policy, we are automatically moving it out of the `need-review` state.
Please, move it back to `need-review` without hesitation if this diff should still be discussed.
:baymax:need-review-idle:
"""
PHAB_URL = "https://phab.mercurial-scm.org/api/"
USER = os.environ.get("PHABBOT_USER", "baymax")
TOKEN = os.environ.get("PHABBOT_TOKEN")
NOW = datetime.datetime.now()
# 3 months in seconds
DELAY = 60 * 60 * 24 * 30 * 3
def get_all_diff(phab):
"""Fetch all the diff that the need review"""
return phab.differential.query(
status="status-needs-review",
order="order-modified",
paths=[('HG', None)],
)
def filter_diffs(diffs, older_than):
"""filter diffs to only keep the one unmodified sin <older_than> seconds"""
olds = []
for d in diffs:
modified = int(d['dateModified'])
modified = datetime.datetime.fromtimestamp(modified)
d["idleFor"] = idle_for = NOW - modified
if idle_for.total_seconds() > older_than:
olds.append(d)
return olds
def nudge_diff(phab, diff):
"""Comment on the idle diff and reject it"""
diff_id = int(d['id'])
phab.differential.createcomment(
revision_id=diff_id, message=MESSAGE, action="reject"
)
if not USER:
print(
"not user specified please set PHABBOT_USER and PHABBOT_TOKEN",
file=sys.stderr,
)
elif not TOKEN:
print(
"not api-token specified please set PHABBOT_USER and PHABBOT_TOKEN",
file=sys.stderr,
)
sys.exit(1)
phab = phabricator.Phabricator(USER, host=PHAB_URL, token=TOKEN)
phab.connect()
phab.update_interfaces()
print('Hello "%s".' % phab.user.whoami()['realName'])
diffs = get_all_diff(phab)
print("Found %d Diffs" % len(diffs))
olds = filter_diffs(diffs, DELAY)
print("Found %d old Diffs" % len(olds))
for d in olds:
diff_id = d['id']
status = d['statusName']
modified = int(d['dateModified'])
idle_for = d["idleFor"]
msg = 'nudging D%s in "%s" state for %s'
print(msg % (diff_id, status, idle_for))
# uncomment to actually affect phab
nudge_diff(phab, d)