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13c825d200
Summary: If the user specifies a revision using `-r`, along with `--since-last-arc-diff`, then show the differences for that revision, rather than the working copy parent. Differential Revision: D7068359 fbshipit-source-id: feffadeb45eed4e1d8bb9d8fc7040932ada31736
79 lines
2.5 KiB
Python
79 lines
2.5 KiB
Python
# arcdiff.py - extension adding an option to the diff command to show changes
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# since the last arcanist diff
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#
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# Copyright 2016 Facebook, Inc.
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#
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# This software may be used and distributed according to the terms of the
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# GNU General Public License version 2 or any later version.
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import os
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from mercurial import commands, error, extensions
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from mercurial.i18n import _
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from .extlib.phabricator import (
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arcconfig,
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graphql,
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diffprops,
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)
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def extsetup(ui):
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entry = extensions.wrapcommand(commands.table, 'diff', _diff)
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options = entry[1]
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options.append(('', 'since-last-arc-diff', None,
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_('show changes since last `arc diff`')))
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def _differentialhash(ui, repo, phabrev):
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timeout = repo.ui.configint('ssl', 'timeout', 5)
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ca_certs = repo.ui.configpath('web', 'cacerts')
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try:
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client = graphql.Client(
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repodir=repo.root, ca_bundle=ca_certs, repo=repo)
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info = client.getrevisioninfo(timeout, [phabrev]).get(str(phabrev))
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if not info:
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return None
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return info
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except graphql.ClientError as e:
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ui.warn(_('Error calling graphql: %s\n') % str(e))
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return None
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except arcconfig.ArcConfigError as e:
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raise error.Abort(str(e))
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def _diff(orig, ui, repo, *pats, **opts):
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if not opts.get('since_last_arc_diff'):
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return orig(ui, repo, *pats, **opts)
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if len(opts['rev']) > 1:
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mess = _('cannot specify --since-last-arc-diff with multiple revisions')
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raise error.Abort(mess)
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try:
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targetrev = opts['rev'][0]
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except IndexError:
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targetrev = '.'
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ctx = repo[targetrev]
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phabrev = diffprops.parserevfromcommitmsg(ctx.description())
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if phabrev is None:
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mess = _('local changeset is not associated with a differential '
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'revision')
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raise error.Abort(mess)
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rev = _differentialhash(ui, repo, phabrev)
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if rev is None or not isinstance(rev, dict) or "hash" not in rev:
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mess = _('unable to determine previous changeset hash')
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raise error.Abort(mess)
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rev = str(rev['hash'])
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opts['rev'] = [rev, targetrev]
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# if patterns aren't provided, restrict diff to files in both changesets
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# this prevents performing a diff on rebased changes
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if len(pats) == 0:
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prev = set(repo.unfiltered()[rev].files())
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curr = set(repo[targetrev].files())
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pats = tuple(os.path.join(repo.root, p) for p in prev | curr)
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return orig(ui, repo, *pats, **opts)
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