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https://we.phorge.it/source/arcanist.git
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b1f807f7ca
Summary: Ref T13546. Ref T9948. It seems challenging to examine a remote in vanilla Mercurial. Provide an "hg arc-ls-remote" command which functions like "git ls-remote" so we can figure out if "--into X" is a bookmark, branch, both, neither, or a branch with multiple heads without mutating the working copy as a side effect. Test Plan: Ran various "arc land --into ..." commands in a Mercurial working copy, saw apparently-sensible resolution of remote marker names. Maniphest Tasks: T13546, T9948 Differential Revision: https://secure.phabricator.com/D21343
90 lines
1.9 KiB
Python
90 lines
1.9 KiB
Python
from __future__ import absolute_import
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import os
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import json
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from mercurial import (
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cmdutil,
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bookmarks,
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bundlerepo,
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error,
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hg,
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i18n,
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node,
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registrar,
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)
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_ = i18n._
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cmdtable = {}
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command = registrar.command(cmdtable)
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@command(
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"arc-ls-remote",
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[('', 'output', '',
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_('file to output refs to'), _('FILE')),
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] + cmdutil.remoteopts,
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_('[--output FILENAME] [SOURCE]'))
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def lsremote(ui, repo, source="default", **opts):
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"""list markers in a remote
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Show the current branch heads and bookmarks in a specified path/URL or the
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default pull location.
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Markers are printed to stdout in JSON.
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(This is an Arcanist extension to Mercurial.)
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Returns 0 if listing the markers succeeds, 1 otherwise.
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"""
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# Disable status output from fetching a remote.
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ui.quiet = True
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source, branches = hg.parseurl(ui.expandpath(source))
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remote = hg.peer(repo, opts, source)
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markers = []
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bundle, remotebranches, cleanup = bundlerepo.getremotechanges(
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ui,
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repo,
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remote)
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try:
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for n in remotebranches:
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ctx = bundle[n]
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markers.append({
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'type': 'branch',
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'name': ctx.branch(),
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'node': node.hex(ctx.node()),
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})
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finally:
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cleanup()
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with remote.commandexecutor() as e:
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remotemarks = bookmarks.unhexlifybookmarks(e.callcommand('listkeys', {
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'namespace': 'bookmarks',
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}).result())
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for mark in remotemarks:
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markers.append({
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'type': 'bookmark',
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'name': mark,
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'node': node.hex(remotemarks[mark]),
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})
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json_opts = {
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'indent': 2,
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'sort_keys': True,
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}
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output_file = opts.get('output')
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if output_file:
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if os.path.exists(output_file):
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raise error.Abort(_('File "%s" already exists.' % output_file))
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with open(output_file, 'w+') as f:
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json.dump(markers, f, **json_opts)
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else:
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print json.dumps(markers, output_file, **json_opts)
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return 0
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