Mercurial > hg
view mercurial/hgweb/webutil.py @ 42707:3cffc7bbec26
copies: extract an explicit `computechangesetcopie` method from context
Right now, the logic around changeset centric copies data are buried into the
"changectx" code. We extract this code in a dedicated method (in the copies
module) for clarity. This clarity will help to explicitly compute and caches
these data in the future.
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
---|---|
date | Tue, 06 Aug 2019 03:17:40 +0200 |
parents | 832c59d1196e |
children | 6ccf539aec71 |
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# hgweb/webutil.py - utility library for the web interface. # # Copyright 21 May 2005 - (c) 2005 Jake Edge <jake@edge2.net> # Copyright 2005-2007 Matt Mackall <mpm@selenic.com> # # 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 import copy import difflib import os import re from ..i18n import _ from ..node import hex, nullid, short from .common import ( ErrorResponse, HTTP_BAD_REQUEST, HTTP_NOT_FOUND, paritygen, ) from .. import ( context, diffutil, error, match, mdiff, obsutil, patch, pathutil, pycompat, scmutil, templatefilters, templatekw, templateutil, ui as uimod, util, ) from ..utils import ( stringutil, ) archivespecs = util.sortdict(( ('zip', ('application/zip', 'zip', '.zip', None)), ('gz', ('application/x-gzip', 'tgz', '.tar.gz', None)), ('bz2', ('application/x-bzip2', 'tbz2', '.tar.bz2', None)), )) def archivelist(ui, nodeid, url=None): allowed = ui.configlist('web', 'allow-archive', untrusted=True) archives = [] for typ, spec in archivespecs.iteritems(): if typ in allowed or ui.configbool('web', 'allow' + typ, untrusted=True): archives.append({ 'type': typ, 'extension': spec[2], 'node': nodeid, 'url': url, }) return templateutil.mappinglist(archives) def up(p): if p[0:1] != "/": p = "/" + p if p[-1:] == "/": p = p[:-1] up = os.path.dirname(p) if up == "/": return "/" return up + "/" def _navseq(step, firststep=None): if firststep: yield firststep if firststep >= 20 and firststep <= 40: firststep = 50 yield firststep assert step > 0 assert firststep > 0 while step <= firststep: step *= 10 while True: yield 1 * step yield 3 * step step *= 10 class revnav(object): def __init__(self, repo): """Navigation generation object :repo: repo object we generate nav for """ # used for hex generation self._revlog = repo.changelog def __nonzero__(self): """return True if any revision to navigate over""" return self._first() is not None __bool__ = __nonzero__ def _first(self): """return the minimum non-filtered changeset or None""" try: return next(iter(self._revlog)) except StopIteration: return None def hex(self, rev): return hex(self._revlog.node(rev)) def gen(self, pos, pagelen, limit): """computes label and revision id for navigation link :pos: is the revision relative to which we generate navigation. :pagelen: the size of each navigation page :limit: how far shall we link The return is: - a single element mappinglist - containing a dictionary with a `before` and `after` key - values are dictionaries with `label` and `node` keys """ if not self: # empty repo return templateutil.mappinglist([ {'before': templateutil.mappinglist([]), 'after': templateutil.mappinglist([])}, ]) targets = [] for f in _navseq(1, pagelen): if f > limit: break targets.append(pos + f) targets.append(pos - f) targets.sort() first = self._first() navbefore = [{'label': '(%i)' % first, 'node': self.hex(first)}] navafter = [] for rev in targets: if rev not in self._revlog: continue if pos < rev < limit: navafter.append({'label': '+%d' % abs(rev - pos), 'node': self.hex(rev)}) if 0 < rev < pos: navbefore.append({'label': '-%d' % abs(rev - pos), 'node': self.hex(rev)}) navafter.append({'label': 'tip', 'node': 'tip'}) # TODO: maybe this can be a scalar object supporting tomap() return templateutil.mappinglist([ {'before': templateutil.mappinglist(navbefore), 'after': templateutil.mappinglist(navafter)}, ]) class filerevnav(revnav): def __init__(self, repo, path): """Navigation generation object :repo: repo object we generate nav for :path: path of the file we generate nav for """ # used for iteration self._changelog = repo.unfiltered().changelog # used for hex generation self._revlog = repo.file(path) def hex(self, rev): return hex(self._changelog.node(self._revlog.linkrev(rev))) # TODO: maybe this can be a wrapper class for changectx/filectx list, which # yields {'ctx': ctx} def _ctxsgen(context, ctxs): for s in ctxs: d = { 'node': s.hex(), 'rev': s.rev(), 'user': s.user(), 'date': s.date(), 'description': s.description(), 'branch': s.branch(), } if util.safehasattr(s, 'path'): d['file'] = s.path() yield d def _siblings(siblings=None, hiderev=None): if siblings is None: siblings = [] siblings = [s for s in siblings if s.node() != nullid] if len(siblings) == 1 and siblings[0].rev() == hiderev: siblings = [] return templateutil.mappinggenerator(_ctxsgen, args=(siblings,)) def difffeatureopts(req, ui, section): diffopts = diffutil.difffeatureopts(ui, untrusted=True, section=section, whitespace=True) for k in ('ignorews', 'ignorewsamount', 'ignorewseol', 'ignoreblanklines'): v = req.qsparams.get(k) if v is not None: v = stringutil.parsebool(v) setattr(diffopts, k, v if v is not None else True) return diffopts def annotate(req, fctx, ui): diffopts = difffeatureopts(req, ui, 'annotate') return fctx.annotate(follow=True, diffopts=diffopts) def parents(ctx, hide=None): if isinstance(ctx, context.basefilectx): introrev = ctx.introrev() if ctx.changectx().rev() != introrev: return _siblings([ctx.repo()[introrev]], hide) return _siblings(ctx.parents(), hide) def children(ctx, hide=None): return _siblings(ctx.children(), hide) def renamelink(fctx): r = fctx.renamed() if r: return templateutil.mappinglist([{'file': r[0], 'node': hex(r[1])}]) return templateutil.mappinglist([]) def nodetagsdict(repo, node): return templateutil.hybridlist(repo.nodetags(node), name='name') def nodebookmarksdict(repo, node): return templateutil.hybridlist(repo.nodebookmarks(node), name='name') def nodebranchdict(repo, ctx): branches = [] branch = ctx.branch() # If this is an empty repo, ctx.node() == nullid, # ctx.branch() == 'default'. try: branchnode = repo.branchtip(branch) except error.RepoLookupError: branchnode = None if branchnode == ctx.node(): branches.append(branch) return templateutil.hybridlist(branches, name='name') def nodeinbranch(repo, ctx): branches = [] branch = ctx.branch() try: branchnode = repo.branchtip(branch) except error.RepoLookupError: branchnode = None if branch != 'default' and branchnode != ctx.node(): branches.append(branch) return templateutil.hybridlist(branches, name='name') def nodebranchnodefault(ctx): branches = [] branch = ctx.branch() if branch != 'default': branches.append(branch) return templateutil.hybridlist(branches, name='name') def _nodenamesgen(context, f, node, name): for t in f(node): yield {name: t} def showtag(repo, t1, node=nullid): args = (repo.nodetags, node, 'tag') return templateutil.mappinggenerator(_nodenamesgen, args=args, name=t1) def showbookmark(repo, t1, node=nullid): args = (repo.nodebookmarks, node, 'bookmark') return templateutil.mappinggenerator(_nodenamesgen, args=args, name=t1) def branchentries(repo, stripecount, limit=0): tips = [] heads = repo.heads() parity = paritygen(stripecount) sortkey = lambda item: (not item[1], item[0].rev()) def entries(context): count = 0 if not tips: for tag, hs, tip, closed in repo.branchmap().iterbranches(): tips.append((repo[tip], closed)) for ctx, closed in sorted(tips, key=sortkey, reverse=True): if limit > 0 and count >= limit: return count += 1 if closed: status = 'closed' elif ctx.node() not in heads: status = 'inactive' else: status = 'open' yield { 'parity': next(parity), 'branch': ctx.branch(), 'status': status, 'node': ctx.hex(), 'date': ctx.date() } return templateutil.mappinggenerator(entries) def cleanpath(repo, path): path = path.lstrip('/') auditor = pathutil.pathauditor(repo.root, realfs=False) return pathutil.canonpath(repo.root, '', path, auditor=auditor) def changectx(repo, req): changeid = "tip" if 'node' in req.qsparams: changeid = req.qsparams['node'] ipos = changeid.find(':') if ipos != -1: changeid = changeid[(ipos + 1):] return scmutil.revsymbol(repo, changeid) def basechangectx(repo, req): if 'node' in req.qsparams: changeid = req.qsparams['node'] ipos = changeid.find(':') if ipos != -1: changeid = changeid[:ipos] return scmutil.revsymbol(repo, changeid) return None def filectx(repo, req): if 'file' not in req.qsparams: raise ErrorResponse(HTTP_NOT_FOUND, 'file not given') path = cleanpath(repo, req.qsparams['file']) if 'node' in req.qsparams: changeid = req.qsparams['node'] elif 'filenode' in req.qsparams: changeid = req.qsparams['filenode'] else: raise ErrorResponse(HTTP_NOT_FOUND, 'node or filenode not given') try: fctx = scmutil.revsymbol(repo, changeid)[path] except error.RepoError: fctx = repo.filectx(path, fileid=changeid) return fctx def linerange(req): linerange = req.qsparams.getall('linerange') if not linerange: return None if len(linerange) > 1: raise ErrorResponse(HTTP_BAD_REQUEST, 'redundant linerange parameter') try: fromline, toline = map(int, linerange[0].split(':', 1)) except ValueError: raise ErrorResponse(HTTP_BAD_REQUEST, 'invalid linerange parameter') try: return util.processlinerange(fromline, toline) except error.ParseError as exc: raise ErrorResponse(HTTP_BAD_REQUEST, pycompat.bytestr(exc)) def formatlinerange(fromline, toline): return '%d:%d' % (fromline + 1, toline) def _succsandmarkersgen(context, mapping): repo = context.resource(mapping, 'repo') itemmappings = templatekw.showsuccsandmarkers(context, mapping) for item in itemmappings.tovalue(context, mapping): item['successors'] = _siblings(repo[successor] for successor in item['successors']) yield item def succsandmarkers(context, mapping): return templateutil.mappinggenerator(_succsandmarkersgen, args=(mapping,)) # teach templater succsandmarkers is switched to (context, mapping) API succsandmarkers._requires = {'repo', 'ctx'} def _whyunstablegen(context, mapping): repo = context.resource(mapping, 'repo') ctx = context.resource(mapping, 'ctx') entries = obsutil.whyunstable(repo, ctx) for entry in entries: if entry.get('divergentnodes'): entry['divergentnodes'] = _siblings(entry['divergentnodes']) yield entry def whyunstable(context, mapping): return templateutil.mappinggenerator(_whyunstablegen, args=(mapping,)) whyunstable._requires = {'repo', 'ctx'} def commonentry(repo, ctx): node = scmutil.binnode(ctx) return { # TODO: perhaps ctx.changectx() should be assigned if ctx is a # filectx, but I'm not pretty sure if that would always work because # fctx.parents() != fctx.changectx.parents() for example. 'ctx': ctx, 'rev': ctx.rev(), 'node': hex(node), 'author': ctx.user(), 'desc': ctx.description(), 'date': ctx.date(), 'extra': ctx.extra(), 'phase': ctx.phasestr(), 'obsolete': ctx.obsolete(), 'succsandmarkers': succsandmarkers, 'instabilities': templateutil.hybridlist(ctx.instabilities(), name='instability'), 'whyunstable': whyunstable, 'branch': nodebranchnodefault(ctx), 'inbranch': nodeinbranch(repo, ctx), 'branches': nodebranchdict(repo, ctx), 'tags': nodetagsdict(repo, node), 'bookmarks': nodebookmarksdict(repo, node), 'parent': lambda context, mapping: parents(ctx), 'child': lambda context, mapping: children(ctx), } def changelistentry(web, ctx): '''Obtain a dictionary to be used for entries in a changelist. This function is called when producing items for the "entries" list passed to the "shortlog" and "changelog" templates. ''' repo = web.repo rev = ctx.rev() n = scmutil.binnode(ctx) showtags = showtag(repo, 'changelogtag', n) files = listfilediffs(ctx.files(), n, web.maxfiles) entry = commonentry(repo, ctx) entry.update({ 'allparents': lambda context, mapping: parents(ctx), 'parent': lambda context, mapping: parents(ctx, rev - 1), 'child': lambda context, mapping: children(ctx, rev + 1), 'changelogtag': showtags, 'files': files, }) return entry def changelistentries(web, revs, maxcount, parityfn): """Emit up to N records for an iterable of revisions.""" repo = web.repo count = 0 for rev in revs: if count >= maxcount: break count += 1 entry = changelistentry(web, repo[rev]) entry['parity'] = next(parityfn) yield entry def symrevorshortnode(req, ctx): if 'node' in req.qsparams: return templatefilters.revescape(req.qsparams['node']) else: return short(scmutil.binnode(ctx)) def _listfilesgen(context, ctx, stripecount): parity = paritygen(stripecount) for blockno, f in enumerate(ctx.files()): template = 'filenodelink' if f in ctx else 'filenolink' yield context.process(template, { 'node': ctx.hex(), 'file': f, 'blockno': blockno + 1, 'parity': next(parity), }) def changesetentry(web, ctx): '''Obtain a dictionary to be used to render the "changeset" template.''' showtags = showtag(web.repo, 'changesettag', scmutil.binnode(ctx)) showbookmarks = showbookmark(web.repo, 'changesetbookmark', scmutil.binnode(ctx)) showbranch = nodebranchnodefault(ctx) basectx = basechangectx(web.repo, web.req) if basectx is None: basectx = ctx.p1() style = web.config('web', 'style') if 'style' in web.req.qsparams: style = web.req.qsparams['style'] diff = diffs(web, ctx, basectx, None, style) parity = paritygen(web.stripecount) diffstatsgen = diffstatgen(web.repo.ui, ctx, basectx) diffstats = diffstat(ctx, diffstatsgen, parity) return dict( diff=diff, symrev=symrevorshortnode(web.req, ctx), basenode=basectx.hex(), changesettag=showtags, changesetbookmark=showbookmarks, changesetbranch=showbranch, files=templateutil.mappedgenerator(_listfilesgen, args=(ctx, web.stripecount)), diffsummary=lambda context, mapping: diffsummary(diffstatsgen), diffstat=diffstats, archives=web.archivelist(ctx.hex()), **pycompat.strkwargs(commonentry(web.repo, ctx))) def _listfilediffsgen(context, files, node, max): for f in files[:max]: yield context.process('filedifflink', {'node': hex(node), 'file': f}) if len(files) > max: yield context.process('fileellipses', {}) def listfilediffs(files, node, max): return templateutil.mappedgenerator(_listfilediffsgen, args=(files, node, max)) def _prettyprintdifflines(context, lines, blockno, lineidprefix): for lineno, l in enumerate(lines, 1): difflineno = "%d.%d" % (blockno, lineno) if l.startswith('+'): ltype = "difflineplus" elif l.startswith('-'): ltype = "difflineminus" elif l.startswith('@'): ltype = "difflineat" else: ltype = "diffline" yield context.process(ltype, { 'line': l, 'lineno': lineno, 'lineid': lineidprefix + "l%s" % difflineno, 'linenumber': "% 8s" % difflineno, }) def _diffsgen(context, repo, ctx, basectx, files, style, stripecount, linerange, lineidprefix): if files: m = match.exact(files) else: m = match.always() diffopts = patch.diffopts(repo.ui, untrusted=True) parity = paritygen(stripecount) diffhunks = patch.diffhunks(repo, basectx, ctx, m, opts=diffopts) for blockno, (fctx1, fctx2, header, hunks) in enumerate(diffhunks, 1): if style != 'raw': header = header[1:] lines = [h + '\n' for h in header] for hunkrange, hunklines in hunks: if linerange is not None and hunkrange is not None: s1, l1, s2, l2 = hunkrange if not mdiff.hunkinrange((s2, l2), linerange): continue lines.extend(hunklines) if lines: l = templateutil.mappedgenerator(_prettyprintdifflines, args=(lines, blockno, lineidprefix)) yield { 'parity': next(parity), 'blockno': blockno, 'lines': l, } def diffs(web, ctx, basectx, files, style, linerange=None, lineidprefix=''): args = (web.repo, ctx, basectx, files, style, web.stripecount, linerange, lineidprefix) return templateutil.mappinggenerator(_diffsgen, args=args, name='diffblock') def _compline(type, leftlineno, leftline, rightlineno, rightline): lineid = leftlineno and ("l%d" % leftlineno) or '' lineid += rightlineno and ("r%d" % rightlineno) or '' llno = '%d' % leftlineno if leftlineno else '' rlno = '%d' % rightlineno if rightlineno else '' return { 'type': type, 'lineid': lineid, 'leftlineno': leftlineno, 'leftlinenumber': "% 6s" % llno, 'leftline': leftline or '', 'rightlineno': rightlineno, 'rightlinenumber': "% 6s" % rlno, 'rightline': rightline or '', } def _getcompblockgen(context, leftlines, rightlines, opcodes): for type, llo, lhi, rlo, rhi in opcodes: type = pycompat.sysbytes(type) len1 = lhi - llo len2 = rhi - rlo count = min(len1, len2) for i in pycompat.xrange(count): yield _compline(type=type, leftlineno=llo + i + 1, leftline=leftlines[llo + i], rightlineno=rlo + i + 1, rightline=rightlines[rlo + i]) if len1 > len2: for i in pycompat.xrange(llo + count, lhi): yield _compline(type=type, leftlineno=i + 1, leftline=leftlines[i], rightlineno=None, rightline=None) elif len2 > len1: for i in pycompat.xrange(rlo + count, rhi): yield _compline(type=type, leftlineno=None, leftline=None, rightlineno=i + 1, rightline=rightlines[i]) def _getcompblock(leftlines, rightlines, opcodes): args = (leftlines, rightlines, opcodes) return templateutil.mappinggenerator(_getcompblockgen, args=args, name='comparisonline') def _comparegen(context, contextnum, leftlines, rightlines): '''Generator function that provides side-by-side comparison data.''' s = difflib.SequenceMatcher(None, leftlines, rightlines) if contextnum < 0: l = _getcompblock(leftlines, rightlines, s.get_opcodes()) yield {'lines': l} else: for oc in s.get_grouped_opcodes(n=contextnum): l = _getcompblock(leftlines, rightlines, oc) yield {'lines': l} def compare(contextnum, leftlines, rightlines): args = (contextnum, leftlines, rightlines) return templateutil.mappinggenerator(_comparegen, args=args, name='comparisonblock') def diffstatgen(ui, ctx, basectx): '''Generator function that provides the diffstat data.''' diffopts = patch.diffopts(ui, {'noprefix': False}) stats = patch.diffstatdata( util.iterlines(ctx.diff(basectx, opts=diffopts))) maxname, maxtotal, addtotal, removetotal, binary = patch.diffstatsum(stats) while True: yield stats, maxname, maxtotal, addtotal, removetotal, binary def diffsummary(statgen): '''Return a short summary of the diff.''' stats, maxname, maxtotal, addtotal, removetotal, binary = next(statgen) return _(' %d files changed, %d insertions(+), %d deletions(-)\n') % ( len(stats), addtotal, removetotal) def _diffstattmplgen(context, ctx, statgen, parity): stats, maxname, maxtotal, addtotal, removetotal, binary = next(statgen) files = ctx.files() def pct(i): if maxtotal == 0: return 0 return (float(i) / maxtotal) * 100 fileno = 0 for filename, adds, removes, isbinary in stats: template = 'diffstatlink' if filename in files else 'diffstatnolink' total = adds + removes fileno += 1 yield context.process(template, { 'node': ctx.hex(), 'file': filename, 'fileno': fileno, 'total': total, 'addpct': pct(adds), 'removepct': pct(removes), 'parity': next(parity), }) def diffstat(ctx, statgen, parity): '''Return a diffstat template for each file in the diff.''' args = (ctx, statgen, parity) return templateutil.mappedgenerator(_diffstattmplgen, args=args) class sessionvars(templateutil.wrapped): def __init__(self, vars, start='?'): self._start = start self._vars = vars def __getitem__(self, key): return self._vars[key] def __setitem__(self, key, value): self._vars[key] = value def __copy__(self): return sessionvars(copy.copy(self._vars), self._start) def contains(self, context, mapping, item): item = templateutil.unwrapvalue(context, mapping, item) return item in self._vars def getmember(self, context, mapping, key): key = templateutil.unwrapvalue(context, mapping, key) return self._vars.get(key) def getmin(self, context, mapping): raise error.ParseError(_('not comparable')) def getmax(self, context, mapping): raise error.ParseError(_('not comparable')) def filter(self, context, mapping, select): # implement if necessary raise error.ParseError(_('not filterable')) def itermaps(self, context): separator = self._start for key, value in sorted(self._vars.iteritems()): yield {'name': key, 'value': pycompat.bytestr(value), 'separator': separator, } separator = '&' def join(self, context, mapping, sep): # could be '{separator}{name}={value|urlescape}' raise error.ParseError(_('not displayable without template')) def show(self, context, mapping): return self.join(context, '') def tobool(self, context, mapping): return bool(self._vars) def tovalue(self, context, mapping): return self._vars class wsgiui(uimod.ui): # default termwidth breaks under mod_wsgi def termwidth(self): return 80 def getwebsubs(repo): websubtable = [] websubdefs = repo.ui.configitems('websub') # we must maintain interhg backwards compatibility websubdefs += repo.ui.configitems('interhg') for key, pattern in websubdefs: # grab the delimiter from the character after the "s" unesc = pattern[1:2] delim = stringutil.reescape(unesc) # identify portions of the pattern, taking care to avoid escaped # delimiters. the replace format and flags are optional, but # delimiters are required. match = re.match( br'^s%s(.+)(?:(?<=\\\\)|(?<!\\))%s(.*)%s([ilmsux])*$' % (delim, delim, delim), pattern) if not match: repo.ui.warn(_("websub: invalid pattern for %s: %s\n") % (key, pattern)) continue # we need to unescape the delimiter for regexp and format delim_re = re.compile(br'(?<!\\)\\%s' % delim) regexp = delim_re.sub(unesc, match.group(1)) format = delim_re.sub(unesc, match.group(2)) # the pattern allows for 6 regexp flags, so set them if necessary flagin = match.group(3) flags = 0 if flagin: for flag in flagin.upper(): flags |= re.__dict__[flag] try: regexp = re.compile(regexp, flags) websubtable.append((regexp, format)) except re.error: repo.ui.warn(_("websub: invalid regexp for %s: %s\n") % (key, regexp)) return websubtable def getgraphnode(repo, ctx): return (templatekw.getgraphnodecurrent(repo, ctx) + templatekw.getgraphnodesymbol(ctx))