contrib: add a set of scripts to run pytype in Docker
Having a simple way to run pytype for developers can massively shorten
development cycle. Using the same Docker image and scripts that we use on our
CI guarantees that the result achieved locally will be very similar to (if not
the same as) the output of our CI runners.
Things to note: the Dockerfile needs to do a little dance around user
permissions inside /home/ci-runner/ because:
- on one hand, creating new files on the host (e.g. .pyi files inside .pytype/)
should use host user's uid and gid
- on the other hand, when we run the image as uid:gid of host user, it needs to
be able to read/execute files inside the image that are owned by ci-runner
Since local user's uid might be different from ci-runner's uid, we execute this
very broad chmod command inside /home/ci-runner/, but then run the image as the
host user's uid:gid.
There might be a better way to do this.
# Copyright 2005, 2006 Benoit Boissinot <benoit.boissinot@ens-lyon.org>
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.
'''commands to sign and verify changesets'''
import binascii
import os
from mercurial.i18n import _
from mercurial.node import (
bin,
hex,
short,
)
from mercurial import (
cmdutil,
error,
help,
match,
pycompat,
registrar,
)
from mercurial.utils import (
dateutil,
procutil,
)
cmdtable = {}
command = registrar.command(cmdtable)
# Note for extension authors: ONLY specify testedwith = 'ships-with-hg-core' for
# extensions which SHIP WITH MERCURIAL. Non-mainline extensions should
# be specifying the version(s) of Mercurial they are tested with, or
# leave the attribute unspecified.
testedwith = b'ships-with-hg-core'
configtable = {}
configitem = registrar.configitem(configtable)
configitem(
b'gpg',
b'cmd',
default=b'gpg',
)
configitem(
b'gpg',
b'key',
default=None,
)
configitem(
b'gpg',
b'.*',
default=None,
generic=True,
)
# Custom help category
_HELP_CATEGORY = b'gpg'
help.CATEGORY_ORDER.insert(
help.CATEGORY_ORDER.index(registrar.command.CATEGORY_HELP), _HELP_CATEGORY
)
help.CATEGORY_NAMES[_HELP_CATEGORY] = b'Signing changes (GPG)'
class gpg:
def __init__(self, path, key=None):
self.path = path
self.key = (key and b" --local-user \"%s\"" % key) or b""
def sign(self, data):
gpgcmd = b"%s --sign --detach-sign%s" % (self.path, self.key)
return procutil.filter(data, gpgcmd)
def verify(self, data, sig):
"""returns of the good and bad signatures"""
sigfile = datafile = None
try:
# create temporary files
fd, sigfile = pycompat.mkstemp(prefix=b"hg-gpg-", suffix=b".sig")
fp = os.fdopen(fd, 'wb')
fp.write(sig)
fp.close()
fd, datafile = pycompat.mkstemp(prefix=b"hg-gpg-", suffix=b".txt")
fp = os.fdopen(fd, 'wb')
fp.write(data)
fp.close()
gpgcmd = (
b"%s --logger-fd 1 --status-fd 1 --verify \"%s\" \"%s\""
% (
self.path,
sigfile,
datafile,
)
)
ret = procutil.filter(b"", gpgcmd)
finally:
for f in (sigfile, datafile):
try:
if f:
os.unlink(f)
except OSError:
pass
keys = []
key, fingerprint = None, None
for l in ret.splitlines():
# see DETAILS in the gnupg documentation
# filter the logger output
if not l.startswith(b"[GNUPG:]"):
continue
l = l[9:]
if l.startswith(b"VALIDSIG"):
# fingerprint of the primary key
fingerprint = l.split()[10]
elif l.startswith(b"ERRSIG"):
key = l.split(b" ", 3)[:2]
key.append(b"")
fingerprint = None
elif (
l.startswith(b"GOODSIG")
or l.startswith(b"EXPSIG")
or l.startswith(b"EXPKEYSIG")
or l.startswith(b"BADSIG")
):
if key is not None:
keys.append(key + [fingerprint])
key = l.split(b" ", 2)
fingerprint = None
if key is not None:
keys.append(key + [fingerprint])
return keys
def newgpg(ui, **opts):
"""create a new gpg instance"""
gpgpath = ui.config(b"gpg", b"cmd")
gpgkey = opts.get('key')
if not gpgkey:
gpgkey = ui.config(b"gpg", b"key")
return gpg(gpgpath, gpgkey)
def sigwalk(repo):
"""
walk over every sigs, yields a couple
((node, version, sig), (filename, linenumber))
"""
def parsefile(fileiter, context):
ln = 1
for l in fileiter:
if not l:
continue
yield (l.split(b" ", 2), (context, ln))
ln += 1
# read the heads
fl = repo.file(b".hgsigs")
for r in reversed(fl.heads()):
fn = b".hgsigs|%s" % short(r)
for item in parsefile(fl.read(r).splitlines(), fn):
yield item
try:
# read local signatures
fn = b"localsigs"
for item in parsefile(repo.vfs(fn), fn):
yield item
except IOError:
pass
def getkeys(ui, repo, mygpg, sigdata, context):
"""get the keys who signed a data"""
fn, ln = context
node, version, sig = sigdata
prefix = b"%s:%d" % (fn, ln)
node = bin(node)
data = node2txt(repo, node, version)
sig = binascii.a2b_base64(sig)
keys = mygpg.verify(data, sig)
validkeys = []
# warn for expired key and/or sigs
for key in keys:
if key[0] == b"ERRSIG":
ui.write(_(b"%s Unknown key ID \"%s\"\n") % (prefix, key[1]))
continue
if key[0] == b"BADSIG":
ui.write(_(b"%s Bad signature from \"%s\"\n") % (prefix, key[2]))
continue
if key[0] == b"EXPSIG":
ui.write(
_(b"%s Note: Signature has expired (signed by: \"%s\")\n")
% (prefix, key[2])
)
elif key[0] == b"EXPKEYSIG":
ui.write(
_(b"%s Note: This key has expired (signed by: \"%s\")\n")
% (prefix, key[2])
)
validkeys.append((key[1], key[2], key[3]))
return validkeys
@command(b"sigs", [], _(b'hg sigs'), helpcategory=_HELP_CATEGORY)
def sigs(ui, repo):
"""list signed changesets"""
mygpg = newgpg(ui)
revs = {}
for data, context in sigwalk(repo):
node, version, sig = data
fn, ln = context
try:
n = repo.lookup(node)
except KeyError:
ui.warn(_(b"%s:%d node does not exist\n") % (fn, ln))
continue
r = repo.changelog.rev(n)
keys = getkeys(ui, repo, mygpg, data, context)
if not keys:
continue
revs.setdefault(r, [])
revs[r].extend(keys)
for rev in sorted(revs, reverse=True):
for k in revs[rev]:
r = b"%5d:%s" % (rev, hex(repo.changelog.node(rev)))
ui.write(b"%-30s %s\n" % (keystr(ui, k), r))
@command(b"sigcheck", [], _(b'hg sigcheck REV'), helpcategory=_HELP_CATEGORY)
def sigcheck(ui, repo, rev):
"""verify all the signatures there may be for a particular revision"""
mygpg = newgpg(ui)
rev = repo.lookup(rev)
hexrev = hex(rev)
keys = []
for data, context in sigwalk(repo):
node, version, sig = data
if node == hexrev:
k = getkeys(ui, repo, mygpg, data, context)
if k:
keys.extend(k)
if not keys:
ui.write(_(b"no valid signature for %s\n") % short(rev))
return
# print summary
ui.write(_(b"%s is signed by:\n") % short(rev))
for key in keys:
ui.write(b" %s\n" % keystr(ui, key))
def keystr(ui, key):
"""associate a string to a key (username, comment)"""
keyid, user, fingerprint = key
comment = ui.config(b"gpg", fingerprint)
if comment:
return b"%s (%s)" % (user, comment)
else:
return user
@command(
b"sign",
[
(b'l', b'local', None, _(b'make the signature local')),
(b'f', b'force', None, _(b'sign even if the sigfile is modified')),
(
b'',
b'no-commit',
None,
_(b'do not commit the sigfile after signing'),
),
(b'k', b'key', b'', _(b'the key id to sign with'), _(b'ID')),
(b'm', b'message', b'', _(b'use text as commit message'), _(b'TEXT')),
(b'e', b'edit', False, _(b'invoke editor on commit messages')),
]
+ cmdutil.commitopts2,
_(b'hg sign [OPTION]... [REV]...'),
helpcategory=_HELP_CATEGORY,
)
def sign(ui, repo, *revs, **opts):
"""add a signature for the current or given revision
If no revision is given, the parent of the working directory is used,
or tip if no revision is checked out.
The ``gpg.cmd`` config setting can be used to specify the command
to run. A default key can be specified with ``gpg.key``.
See :hg:`help dates` for a list of formats valid for -d/--date.
"""
with repo.wlock():
return _dosign(ui, repo, *revs, **opts)
def _dosign(ui, repo, *revs, **opts):
mygpg = newgpg(ui, **opts)
sigver = b"0"
sigmessage = b""
date = opts.get('date')
if date:
opts['date'] = dateutil.parsedate(date)
if revs:
nodes = [repo.lookup(n) for n in revs]
else:
nodes = [
node for node in repo.dirstate.parents() if node != repo.nullid
]
if len(nodes) > 1:
raise error.Abort(
_(b'uncommitted merge - please provide a specific revision')
)
if not nodes:
nodes = [repo.changelog.tip()]
for n in nodes:
hexnode = hex(n)
ui.write(_(b"signing %d:%s\n") % (repo.changelog.rev(n), short(n)))
# build data
data = node2txt(repo, n, sigver)
sig = mygpg.sign(data)
if not sig:
raise error.Abort(_(b"error while signing"))
sig = binascii.b2a_base64(sig)
sig = sig.replace(b"\n", b"")
sigmessage += b"%s %s %s\n" % (hexnode, sigver, sig)
# write it
if opts['local']:
repo.vfs.append(b"localsigs", sigmessage)
return
msigs = match.exact([b'.hgsigs'])
if not opts["force"]:
if any(repo.status(match=msigs, unknown=True, ignored=True)):
raise error.Abort(
_(b"working copy of .hgsigs is changed "),
hint=_(b"please commit .hgsigs manually"),
)
with repo.wvfs(b".hgsigs", b"ab") as sigsfile:
sigsfile.write(sigmessage)
if b'.hgsigs' not in repo.dirstate:
with repo.dirstate.changing_files(repo):
repo[None].add([b".hgsigs"])
if opts["no_commit"]:
return
message = opts['message']
if not message:
# we don't translate commit messages
message = b"\n".join(
[b"Added signature for changeset %s" % short(n) for n in nodes]
)
try:
editor = cmdutil.getcommiteditor(editform=b'gpg.sign', **opts)
repo.commit(
message, opts['user'], opts['date'], match=msigs, editor=editor
)
except ValueError as inst:
raise error.Abort(pycompat.bytestr(inst))
def node2txt(repo, node, ver):
"""map a manifest into some text"""
if ver == b"0":
return b"%s\n" % hex(node)
else:
raise error.Abort(_(b"unknown signature version"))
def extsetup(ui):
# Add our category before "Repository maintenance".
help.CATEGORY_ORDER.insert(
help.CATEGORY_ORDER.index(command.CATEGORY_MAINTENANCE), _HELP_CATEGORY
)
help.CATEGORY_NAMES[_HELP_CATEGORY] = b'GPG signing'