Mercurial > hg
view hgext/fastannotate/support.py @ 45666:f6811e5bd994
changing-files: add clean computation of changed files for roots
The `files` field is not reliable, so we need to compute things from scratch. We
start with the simplest case root changesets. In the beginning they was nothing,
then user said "let there be files" and there were added files.
Differential Revision: https://phab.mercurial-scm.org/D9126
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
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date | Tue, 29 Sep 2020 22:38:08 +0200 |
parents | de358da72eb1 |
children | 6000f5b25c9b |
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# Copyright 2016-present Facebook. All Rights Reserved. # # support: fastannotate support for hgweb, and filectx # # This software may be used and distributed according to the terms of the # GNU General Public License version 2 or any later version. from __future__ import absolute_import from mercurial.pycompat import getattr from mercurial import ( context as hgcontext, dagop, extensions, hgweb, patch, util, ) from . import ( context, revmap, ) class _lazyfctx(object): """delegates to fctx but do not construct fctx when unnecessary""" def __init__(self, repo, node, path): self._node = node self._path = path self._repo = repo def node(self): return self._node def path(self): return self._path @util.propertycache def _fctx(self): return context.resolvefctx(self._repo, self._node, self._path) def __getattr__(self, name): return getattr(self._fctx, name) def _convertoutputs(repo, annotated, contents): """convert fastannotate outputs to vanilla annotate format""" # fastannotate returns: [(nodeid, linenum, path)], [linecontent] # convert to what fctx.annotate returns: [annotateline] results = [] fctxmap = {} annotateline = dagop.annotateline for i, (hsh, linenum, path) in enumerate(annotated): if (hsh, path) not in fctxmap: fctxmap[(hsh, path)] = _lazyfctx(repo, hsh, path) # linenum: the user wants 1-based, we have 0-based. lineno = linenum + 1 fctx = fctxmap[(hsh, path)] line = contents[i] results.append(annotateline(fctx=fctx, lineno=lineno, text=line)) return results def _getmaster(fctx): """(fctx) -> str""" return fctx._repo.ui.config(b'fastannotate', b'mainbranch') or b'default' def _doannotate(fctx, follow=True, diffopts=None): """like the vanilla fctx.annotate, but do it via fastannotate, and make the output format compatible with the vanilla fctx.annotate. may raise Exception, and always return line numbers. """ master = _getmaster(fctx) with context.fctxannotatecontext(fctx, follow, diffopts) as ac: try: annotated, contents = ac.annotate( fctx.rev(), master=master, showpath=True, showlines=True ) except Exception: ac.rebuild() # try rebuild once fctx._repo.ui.debug( b'fastannotate: %s: rebuilding broken cache\n' % fctx._path ) try: annotated, contents = ac.annotate( fctx.rev(), master=master, showpath=True, showlines=True ) except Exception: raise assert annotated and contents return _convertoutputs(fctx._repo, annotated, contents) def _hgwebannotate(orig, fctx, ui): diffopts = patch.difffeatureopts( ui, untrusted=True, section=b'annotate', whitespace=True ) return _doannotate(fctx, diffopts=diffopts) def _fctxannotate( orig, self, follow=False, linenumber=False, skiprevs=None, diffopts=None ): if skiprevs: # skiprevs is not supported yet return orig( self, follow, linenumber, skiprevs=skiprevs, diffopts=diffopts ) try: return _doannotate(self, follow, diffopts) except Exception as ex: self._repo.ui.debug( b'fastannotate: falling back to the vanilla annotate: %r\n' % ex ) return orig(self, follow=follow, skiprevs=skiprevs, diffopts=diffopts) def _remotefctxannotate(orig, self, follow=False, skiprevs=None, diffopts=None): # skipset: a set-like used to test if a fctx needs to be downloaded with context.fctxannotatecontext(self, follow, diffopts) as ac: skipset = revmap.revmap(ac.revmappath) return orig( self, follow, skiprevs=skiprevs, diffopts=diffopts, prefetchskip=skipset ) def replacehgwebannotate(): extensions.wrapfunction(hgweb.webutil, b'annotate', _hgwebannotate) def replacefctxannotate(): extensions.wrapfunction(hgcontext.basefilectx, b'annotate', _fctxannotate)