setup: detect Python DLL filename from loaded DLL
Attempting to build Mercurial from source using MinGW from
msys2 on Windows produces a hg.exe that attempts to load e.g.
python27.dll. MinGW prefixes its library name with "lib" and
adds a period between the major and minor versions. e.g.
"libpython2.7.dll."
Before this patch, hg.exe files in a MinGW environment would
either fail to find a Python DLL or would attempt to load a
non-MinGW DLL, which would summarily explode. Either way,
hg.exe wouldn't work.
This patch improves the code that determines the Python DLL
filename to actually use the loaded Python DLL instead of
inferring it. Basically we take the handle of the loaded DLL
from sys.dllhandle and call a Windows API to try to resolve
that handle to a filename.
# templatekw.py - common changeset template keywords
#
# Copyright 2005-2009 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
from .node import hex, nullid
from . import (
encoding,
error,
hbisect,
patch,
registrar,
scmutil,
util,
)
# This helper class allows us to handle both:
# "{files}" (legacy command-line-specific list hack) and
# "{files % '{file}\n'}" (hgweb-style with inlining and function support)
# and to access raw values:
# "{ifcontains(file, files, ...)}", "{ifcontains(key, extras, ...)}"
# "{get(extras, key)}"
class _hybrid(object):
def __init__(self, gen, values, makemap, joinfmt=None):
self.gen = gen
self.values = values
self._makemap = makemap
if joinfmt:
self.joinfmt = joinfmt
else:
self.joinfmt = lambda x: x.values()[0]
def __iter__(self):
return self.gen
def itermaps(self):
makemap = self._makemap
for x in self.values:
yield makemap(x)
def __contains__(self, x):
return x in self.values
def __len__(self):
return len(self.values)
def __getattr__(self, name):
if name != 'get':
raise AttributeError(name)
return getattr(self.values, name)
def showlist(name, values, plural=None, element=None, separator=' ', **args):
if not element:
element = name
f = _showlist(name, values, plural, separator, **args)
return _hybrid(f, values, lambda x: {element: x})
def _showlist(name, values, plural=None, separator=' ', **args):
'''expand set of values.
name is name of key in template map.
values is list of strings or dicts.
plural is plural of name, if not simply name + 's'.
separator is used to join values as a string
expansion works like this, given name 'foo'.
if values is empty, expand 'no_foos'.
if 'foo' not in template map, return values as a string,
joined by 'separator'.
expand 'start_foos'.
for each value, expand 'foo'. if 'last_foo' in template
map, expand it instead of 'foo' for last key.
expand 'end_foos'.
'''
templ = args['templ']
if plural:
names = plural
else: names = name + 's'
if not values:
noname = 'no_' + names
if noname in templ:
yield templ(noname, **args)
return
if name not in templ:
if isinstance(values[0], str):
yield separator.join(values)
else:
for v in values:
yield dict(v, **args)
return
startname = 'start_' + names
if startname in templ:
yield templ(startname, **args)
vargs = args.copy()
def one(v, tag=name):
try:
vargs.update(v)
except (AttributeError, ValueError):
try:
for a, b in v:
vargs[a] = b
except ValueError:
vargs[name] = v
return templ(tag, **vargs)
lastname = 'last_' + name
if lastname in templ:
last = values.pop()
else:
last = None
for v in values:
yield one(v)
if last is not None:
yield one(last, tag=lastname)
endname = 'end_' + names
if endname in templ:
yield templ(endname, **args)
def getfiles(repo, ctx, revcache):
if 'files' not in revcache:
revcache['files'] = repo.status(ctx.p1(), ctx)[:3]
return revcache['files']
def getlatesttags(repo, ctx, cache, pattern=None):
'''return date, distance and name for the latest tag of rev'''
cachename = 'latesttags'
if pattern is not None:
cachename += '-' + pattern
match = util.stringmatcher(pattern)[2]
else:
match = util.always
if cachename not in cache:
# Cache mapping from rev to a tuple with tag date, tag
# distance and tag name
cache[cachename] = {-1: (0, 0, ['null'])}
latesttags = cache[cachename]
rev = ctx.rev()
todo = [rev]
while todo:
rev = todo.pop()
if rev in latesttags:
continue
ctx = repo[rev]
tags = [t for t in ctx.tags()
if (repo.tagtype(t) and repo.tagtype(t) != 'local'
and match(t))]
if tags:
latesttags[rev] = ctx.date()[0], 0, [t for t in sorted(tags)]
continue
try:
# The tuples are laid out so the right one can be found by
# comparison.
pdate, pdist, ptag = max(
latesttags[p.rev()] for p in ctx.parents())
except KeyError:
# Cache miss - recurse
todo.append(rev)
todo.extend(p.rev() for p in ctx.parents())
continue
latesttags[rev] = pdate, pdist + 1, ptag
return latesttags[rev]
def getrenamedfn(repo, endrev=None):
rcache = {}
if endrev is None:
endrev = len(repo)
def getrenamed(fn, rev):
'''looks up all renames for a file (up to endrev) the first
time the file is given. It indexes on the changerev and only
parses the manifest if linkrev != changerev.
Returns rename info for fn at changerev rev.'''
if fn not in rcache:
rcache[fn] = {}
fl = repo.file(fn)
for i in fl:
lr = fl.linkrev(i)
renamed = fl.renamed(fl.node(i))
rcache[fn][lr] = renamed
if lr >= endrev:
break
if rev in rcache[fn]:
return rcache[fn][rev]
# If linkrev != rev (i.e. rev not found in rcache) fallback to
# filectx logic.
try:
return repo[rev][fn].renamed()
except error.LookupError:
return None
return getrenamed
# keywords are callables like:
# fn(repo, ctx, templ, cache, revcache, **args)
# with:
# repo - current repository instance
# ctx - the changectx being displayed
# templ - the templater instance
# cache - a cache dictionary for the whole templater run
# revcache - a cache dictionary for the current revision
keywords = {}
templatekeyword = registrar.templatekeyword(keywords)
@templatekeyword('author')
def showauthor(repo, ctx, templ, **args):
"""String. The unmodified author of the changeset."""
return ctx.user()
@templatekeyword('bisect')
def showbisect(repo, ctx, templ, **args):
"""String. The changeset bisection status."""
return hbisect.label(repo, ctx.node())
@templatekeyword('branch')
def showbranch(**args):
"""String. The name of the branch on which the changeset was
committed.
"""
return args['ctx'].branch()
@templatekeyword('branches')
def showbranches(**args):
"""List of strings. The name of the branch on which the
changeset was committed. Will be empty if the branch name was
default. (DEPRECATED)
"""
branch = args['ctx'].branch()
if branch != 'default':
return showlist('branch', [branch], plural='branches', **args)
return showlist('branch', [], plural='branches', **args)
@templatekeyword('bookmarks')
def showbookmarks(**args):
"""List of strings. Any bookmarks associated with the
changeset. Also sets 'active', the name of the active bookmark.
"""
repo = args['ctx']._repo
bookmarks = args['ctx'].bookmarks()
active = repo._activebookmark
makemap = lambda v: {'bookmark': v, 'active': active, 'current': active}
f = _showlist('bookmark', bookmarks, **args)
return _hybrid(f, bookmarks, makemap, lambda x: x['bookmark'])
@templatekeyword('children')
def showchildren(**args):
"""List of strings. The children of the changeset."""
ctx = args['ctx']
childrevs = ['%d:%s' % (cctx, cctx) for cctx in ctx.children()]
return showlist('children', childrevs, element='child', **args)
# Deprecated, but kept alive for help generation a purpose.
@templatekeyword('currentbookmark')
def showcurrentbookmark(**args):
"""String. The active bookmark, if it is
associated with the changeset (DEPRECATED)"""
return showactivebookmark(**args)
@templatekeyword('activebookmark')
def showactivebookmark(**args):
"""String. The active bookmark, if it is
associated with the changeset"""
active = args['repo']._activebookmark
if active and active in args['ctx'].bookmarks():
return active
return ''
@templatekeyword('date')
def showdate(repo, ctx, templ, **args):
"""Date information. The date when the changeset was committed."""
return ctx.date()
@templatekeyword('desc')
def showdescription(repo, ctx, templ, **args):
"""String. The text of the changeset description."""
s = ctx.description()
if isinstance(s, encoding.localstr):
# try hard to preserve utf-8 bytes
return encoding.tolocal(encoding.fromlocal(s).strip())
else:
return s.strip()
@templatekeyword('diffstat')
def showdiffstat(repo, ctx, templ, **args):
"""String. Statistics of changes with the following format:
"modified files: +added/-removed lines"
"""
stats = patch.diffstatdata(util.iterlines(ctx.diff()))
maxname, maxtotal, adds, removes, binary = patch.diffstatsum(stats)
return '%s: +%s/-%s' % (len(stats), adds, removes)
@templatekeyword('extras')
def showextras(**args):
"""List of dicts with key, value entries of the 'extras'
field of this changeset."""
extras = args['ctx'].extra()
extras = util.sortdict((k, extras[k]) for k in sorted(extras))
makemap = lambda k: {'key': k, 'value': extras[k]}
c = [makemap(k) for k in extras]
f = _showlist('extra', c, plural='extras', **args)
return _hybrid(f, extras, makemap,
lambda x: '%s=%s' % (x['key'], x['value']))
@templatekeyword('file_adds')
def showfileadds(**args):
"""List of strings. Files added by this changeset."""
repo, ctx, revcache = args['repo'], args['ctx'], args['revcache']
return showlist('file_add', getfiles(repo, ctx, revcache)[1],
element='file', **args)
@templatekeyword('file_copies')
def showfilecopies(**args):
"""List of strings. Files copied in this changeset with
their sources.
"""
cache, ctx = args['cache'], args['ctx']
copies = args['revcache'].get('copies')
if copies is None:
if 'getrenamed' not in cache:
cache['getrenamed'] = getrenamedfn(args['repo'])
copies = []
getrenamed = cache['getrenamed']
for fn in ctx.files():
rename = getrenamed(fn, ctx.rev())
if rename:
copies.append((fn, rename[0]))
copies = util.sortdict(copies)
makemap = lambda k: {'name': k, 'source': copies[k]}
c = [makemap(k) for k in copies]
f = _showlist('file_copy', c, plural='file_copies', **args)
return _hybrid(f, copies, makemap,
lambda x: '%s (%s)' % (x['name'], x['source']))
# showfilecopiesswitch() displays file copies only if copy records are
# provided before calling the templater, usually with a --copies
# command line switch.
@templatekeyword('file_copies_switch')
def showfilecopiesswitch(**args):
"""List of strings. Like "file_copies" but displayed
only if the --copied switch is set.
"""
copies = args['revcache'].get('copies') or []
copies = util.sortdict(copies)
makemap = lambda k: {'name': k, 'source': copies[k]}
c = [makemap(k) for k in copies]
f = _showlist('file_copy', c, plural='file_copies', **args)
return _hybrid(f, copies, makemap,
lambda x: '%s (%s)' % (x['name'], x['source']))
@templatekeyword('file_dels')
def showfiledels(**args):
"""List of strings. Files removed by this changeset."""
repo, ctx, revcache = args['repo'], args['ctx'], args['revcache']
return showlist('file_del', getfiles(repo, ctx, revcache)[2],
element='file', **args)
@templatekeyword('file_mods')
def showfilemods(**args):
"""List of strings. Files modified by this changeset."""
repo, ctx, revcache = args['repo'], args['ctx'], args['revcache']
return showlist('file_mod', getfiles(repo, ctx, revcache)[0],
element='file', **args)
@templatekeyword('files')
def showfiles(**args):
"""List of strings. All files modified, added, or removed by this
changeset.
"""
return showlist('file', args['ctx'].files(), **args)
@templatekeyword('graphnode')
def showgraphnode(repo, ctx, **args):
"""String. The character representing the changeset node in
an ASCII revision graph"""
wpnodes = repo.dirstate.parents()
if wpnodes[1] == nullid:
wpnodes = wpnodes[:1]
if ctx.node() in wpnodes:
return '@'
elif ctx.obsolete():
return 'x'
elif ctx.closesbranch():
return '_'
else:
return 'o'
@templatekeyword('latesttag')
def showlatesttag(**args):
"""List of strings. The global tags on the most recent globally
tagged ancestor of this changeset.
"""
return showlatesttags(None, **args)
def showlatesttags(pattern, **args):
"""helper method for the latesttag keyword and function"""
repo, ctx = args['repo'], args['ctx']
cache = args['cache']
latesttags = getlatesttags(repo, ctx, cache, pattern)
# latesttag[0] is an implementation detail for sorting csets on different
# branches in a stable manner- it is the date the tagged cset was created,
# not the date the tag was created. Therefore it isn't made visible here.
makemap = lambda v: {
'changes': _showchangessincetag,
'distance': latesttags[1],
'latesttag': v, # BC with {latesttag % '{latesttag}'}
'tag': v
}
tags = latesttags[2]
f = _showlist('latesttag', tags, separator=':', **args)
return _hybrid(f, tags, makemap, lambda x: x['latesttag'])
@templatekeyword('latesttagdistance')
def showlatesttagdistance(repo, ctx, templ, cache, **args):
"""Integer. Longest path to the latest tag."""
return getlatesttags(repo, ctx, cache)[1]
@templatekeyword('changessincelatesttag')
def showchangessincelatesttag(repo, ctx, templ, cache, **args):
"""Integer. All ancestors not in the latest tag."""
latesttag = getlatesttags(repo, ctx, cache)[2][0]
return _showchangessincetag(repo, ctx, tag=latesttag, **args)
def _showchangessincetag(repo, ctx, **args):
offset = 0
revs = [ctx.rev()]
tag = args['tag']
# The only() revset doesn't currently support wdir()
if ctx.rev() is None:
offset = 1
revs = [p.rev() for p in ctx.parents()]
return len(repo.revs('only(%ld, %s)', revs, tag)) + offset
@templatekeyword('manifest')
def showmanifest(**args):
repo, ctx, templ = args['repo'], args['ctx'], args['templ']
mnode = ctx.manifestnode()
if mnode is None:
# just avoid crash, we might want to use the 'ff...' hash in future
return
args = args.copy()
args.update({'rev': repo.manifest.rev(mnode), 'node': hex(mnode)})
return templ('manifest', **args)
def shownames(namespace, **args):
"""helper method to generate a template keyword for a namespace"""
ctx = args['ctx']
repo = ctx.repo()
ns = repo.names[namespace]
names = ns.names(repo, ctx.node())
return showlist(ns.templatename, names, plural=namespace, **args)
@templatekeyword('namespaces')
def shownamespaces(**args):
"""Dict of lists. Names attached to this changeset per
namespace."""
ctx = args['ctx']
repo = ctx.repo()
namespaces = util.sortdict((k, showlist('name', ns.names(repo, ctx.node()),
**args))
for k, ns in repo.names.iteritems())
f = _showlist('namespace', list(namespaces), **args)
return _hybrid(f, namespaces,
lambda k: {'namespace': k, 'names': namespaces[k]},
lambda x: x['namespace'])
@templatekeyword('node')
def shownode(repo, ctx, templ, **args):
"""String. The changeset identification hash, as a 40 hexadecimal
digit string.
"""
return ctx.hex()
@templatekeyword('p1rev')
def showp1rev(repo, ctx, templ, **args):
"""Integer. The repository-local revision number of the changeset's
first parent, or -1 if the changeset has no parents."""
return ctx.p1().rev()
@templatekeyword('p2rev')
def showp2rev(repo, ctx, templ, **args):
"""Integer. The repository-local revision number of the changeset's
second parent, or -1 if the changeset has no second parent."""
return ctx.p2().rev()
@templatekeyword('p1node')
def showp1node(repo, ctx, templ, **args):
"""String. The identification hash of the changeset's first parent,
as a 40 digit hexadecimal string. If the changeset has no parents, all
digits are 0."""
return ctx.p1().hex()
@templatekeyword('p2node')
def showp2node(repo, ctx, templ, **args):
"""String. The identification hash of the changeset's second
parent, as a 40 digit hexadecimal string. If the changeset has no second
parent, all digits are 0."""
return ctx.p2().hex()
@templatekeyword('parents')
def showparents(**args):
"""List of strings. The parents of the changeset in "rev:node"
format. If the changeset has only one "natural" parent (the predecessor
revision) nothing is shown."""
repo = args['repo']
ctx = args['ctx']
pctxs = scmutil.meaningfulparents(repo, ctx)
prevs = [str(p.rev()) for p in pctxs] # ifcontains() needs a list of str
parents = [[('rev', p.rev()),
('node', p.hex()),
('phase', p.phasestr())]
for p in pctxs]
f = _showlist('parent', parents, **args)
return _hybrid(f, prevs, lambda x: {'ctx': repo[int(x)], 'revcache': {}})
@templatekeyword('phase')
def showphase(repo, ctx, templ, **args):
"""String. The changeset phase name."""
return ctx.phasestr()
@templatekeyword('phaseidx')
def showphaseidx(repo, ctx, templ, **args):
"""Integer. The changeset phase index."""
return ctx.phase()
@templatekeyword('rev')
def showrev(repo, ctx, templ, **args):
"""Integer. The repository-local changeset revision number."""
return scmutil.intrev(ctx.rev())
def showrevslist(name, revs, **args):
"""helper to generate a list of revisions in which a mapped template will
be evaluated"""
repo = args['ctx'].repo()
revs = [str(r) for r in revs] # ifcontains() needs a list of str
f = _showlist(name, revs, **args)
return _hybrid(f, revs,
lambda x: {name: x, 'ctx': repo[int(x)], 'revcache': {}})
@templatekeyword('subrepos')
def showsubrepos(**args):
"""List of strings. Updated subrepositories in the changeset."""
ctx = args['ctx']
substate = ctx.substate
if not substate:
return showlist('subrepo', [], **args)
psubstate = ctx.parents()[0].substate or {}
subrepos = []
for sub in substate:
if sub not in psubstate or substate[sub] != psubstate[sub]:
subrepos.append(sub) # modified or newly added in ctx
for sub in psubstate:
if sub not in substate:
subrepos.append(sub) # removed in ctx
return showlist('subrepo', sorted(subrepos), **args)
# don't remove "showtags" definition, even though namespaces will put
# a helper function for "tags" keyword into "keywords" map automatically,
# because online help text is built without namespaces initialization
@templatekeyword('tags')
def showtags(**args):
"""List of strings. Any tags associated with the changeset."""
return shownames('tags', **args)
def loadkeyword(ui, extname, registrarobj):
"""Load template keyword from specified registrarobj
"""
for name, func in registrarobj._table.iteritems():
keywords[name] = func
# tell hggettext to extract docstrings from these functions:
i18nfunctions = keywords.values()