mirror of
https://github.com/facebook/sapling.git
synced 2024-10-06 23:07:18 +03:00
ab3a7cb21f
Summary: In preparation for merging fb-mercurial sources to the Eden repository, move everything from the top-level directory into an `eden/scm` subdirectory.
832 lines
21 KiB
Python
832 lines
21 KiB
Python
from __future__ import absolute_import
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import errno
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import os
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import re
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import socket
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import stat
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import subprocess
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import sys
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import tempfile
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tempprefix = "hg-hghave-"
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checks = {
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"true": (lambda: True, "yak shaving"),
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"false": (lambda: False, "nail clipper"),
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}
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def check(name, desc):
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"""Registers a check function for a feature."""
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def decorator(func):
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checks[name] = (func, desc)
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return func
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return decorator
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def checkvers(name, desc, vers):
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"""Registers a check function for each of a series of versions.
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vers can be a list or an iterator"""
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def decorator(func):
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def funcv(v):
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def f():
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return func(v)
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return f
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for v in vers:
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v = str(v)
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f = funcv(v)
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checks["%s%s" % (name, v.replace(".", ""))] = (f, desc % v)
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return func
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return decorator
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def checkfeatures(features):
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result = {"error": [], "missing": [], "skipped": []}
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for feature in features:
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negate = feature.startswith("no-")
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if negate:
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feature = feature[3:]
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if feature not in checks:
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result["missing"].append(feature)
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continue
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check, desc = checks[feature]
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try:
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available = check()
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except Exception:
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result["error"].append("hghave check failed: %s" % feature)
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continue
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if not negate and not available:
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result["skipped"].append("missing feature: %s" % desc)
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elif negate and available:
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result["skipped"].append("system supports %s" % desc)
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return result
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def require(features):
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"""Require that features are available, exiting if not."""
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result = checkfeatures(features)
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for missing in result["missing"]:
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sys.stderr.write("skipped: unknown feature: %s\n" % missing)
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for msg in result["skipped"]:
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sys.stderr.write("skipped: %s\n" % msg)
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for msg in result["error"]:
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sys.stderr.write("%s\n" % msg)
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if result["missing"]:
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sys.exit(2)
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if result["skipped"] or result["error"]:
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sys.exit(1)
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def matchoutput(cmd, regexp, ignorestatus=False):
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"""Return the match object if cmd executes successfully and its output
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is matched by the supplied regular expression.
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"""
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r = re.compile(regexp)
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try:
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p = subprocess.Popen(
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cmd, shell=True, stdout=subprocess.PIPE, stderr=subprocess.STDOUT
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)
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except OSError as e:
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if e.errno != errno.ENOENT:
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raise
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ret = -1
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ret = p.wait()
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s = p.stdout.read()
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return (ignorestatus or not ret) and r.search(s)
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@check("baz", "GNU Arch baz client")
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def has_baz():
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return matchoutput("baz --version 2>&1", br"baz Bazaar version")
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@check("bzr", "Canonical's Bazaar client")
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def has_bzr():
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try:
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import bzrlib
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import bzrlib.bzrdir
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import bzrlib.errors
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import bzrlib.revision
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import bzrlib.revisionspec
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bzrlib.revisionspec.RevisionSpec
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return bzrlib.__doc__ is not None
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except (AttributeError, ImportError):
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return False
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@checkvers("bzr", "Canonical's Bazaar client >= %s", (1.14,))
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def has_bzr_range(v):
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major, minor = v.split(".")[0:2]
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try:
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import bzrlib
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return bzrlib.__doc__ is not None and bzrlib.version_info[:2] >= (
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int(major),
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int(minor),
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)
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except ImportError:
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return False
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@check("chg", "running with chg")
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def has_chg():
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return "CHGHG" in os.environ
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_zlibsamples = {
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"c7667dad766d": "789c4b363733334f494c01522900160b036e",
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"36a25358b7f16835db5a8e4ecc68328f42": "789c33364b34323536b548324f3"
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"334b330364d49324db44835494d4e06f28c2cd24c8c009b180907",
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"1e0ed22dfcf821b7368535f0d41099f35a139451aec6dfde551a4808c8fc5f": "789c0dc6c901c0300803b095b89cc23829e0fd4768f592aeec980d9b69fa3e"
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"7e120eca844a151d57bd027ab7cf70167f23253bd9e007160f1121",
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}
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@check("common-zlib", "common zlib that produces consistent result")
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def has_common_zlib():
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import binascii
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import zlib
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return all(
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zlib.compress(k) == binascii.unhexlify(v) for k, v in _zlibsamples.items()
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)
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@check("cvs", "cvs client/server")
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def has_cvs():
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re = br"Concurrent Versions System.*?server"
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return matchoutput("cvs --version 2>&1", re) and not has_msys()
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@check("cvs112", "cvs client/server 1.12.* (not cvsnt)")
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def has_cvs112():
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re = br"Concurrent Versions System \(CVS\) 1.12.*?server"
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return matchoutput("cvs --version 2>&1", re) and not has_msys()
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@check("cvsnt", "cvsnt client/server")
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def has_cvsnt():
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re = br"Concurrent Versions System \(CVSNT\) (\d+).(\d+).*\(client/server\)"
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return matchoutput("cvsnt --version 2>&1", re)
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@check("darcs", "darcs client")
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def has_darcs():
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return matchoutput("darcs --version", br"\b2\.([2-9]|\d{2})", True)
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@check("mtn", "monotone client (>= 1.0)")
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def has_mtn():
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return matchoutput("mtn --version", br"monotone", True) and not matchoutput(
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"mtn --version", br"monotone 0\.", True
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)
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@check("eol-in-paths", "end-of-lines in paths")
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def has_eol_in_paths():
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try:
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fd, path = tempfile.mkstemp(dir=".", prefix=tempprefix, suffix="\n\r")
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os.close(fd)
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os.remove(path)
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return True
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except (IOError, OSError):
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return False
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@check("execbit", "executable bit")
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def has_executablebit():
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try:
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EXECFLAGS = stat.S_IXUSR | stat.S_IXGRP | stat.S_IXOTH
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fh, fn = tempfile.mkstemp(dir=".", prefix=tempprefix)
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try:
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os.close(fh)
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m = os.stat(fn).st_mode & 0o777
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new_file_has_exec = m & EXECFLAGS
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os.chmod(fn, m ^ EXECFLAGS)
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exec_flags_cannot_flip = (os.stat(fn).st_mode & 0o777) == m
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finally:
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os.unlink(fn)
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except (IOError, OSError):
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# we don't care, the user probably won't be able to commit anyway
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return False
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return not (new_file_has_exec or exec_flags_cannot_flip)
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@check("icasefs", "case insensitive file system")
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def has_icasefs():
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# Stolen from edenscm.mercurial.util
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fd, path = tempfile.mkstemp(dir=".", prefix=tempprefix)
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os.close(fd)
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try:
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s1 = os.stat(path)
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d, b = os.path.split(path)
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p2 = os.path.join(d, b.upper())
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if path == p2:
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p2 = os.path.join(d, b.lower())
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try:
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s2 = os.stat(p2)
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return s2 == s1
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except OSError:
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return False
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finally:
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os.remove(path)
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@check("fifo", "named pipes")
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def has_fifo():
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if getattr(os, "mkfifo", None) is None:
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return False
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name = tempfile.mktemp(dir=".", prefix=tempprefix)
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try:
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os.mkfifo(name)
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os.unlink(name)
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return True
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except OSError:
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return False
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@check("normal-layout", "common file layout that hg is not a packed binary")
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def has_normal_layout():
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# Cannot test this reliably. So test an environment variable set by the
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# test runner.
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return os.environ.get("HGTEST_NORMAL_LAYOUT", "1") == "1"
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@check("killdaemons", "killdaemons.py support")
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def has_killdaemons():
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return True
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@check("lsprof", "python lsprof module")
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def has_lsprof():
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try:
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import _lsprof
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_lsprof.Profiler # silence unused import warning
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return True
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except ImportError:
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return False
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@check("lz4", "lz4 compress module")
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def has_lz4():
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try:
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import lz4
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lz4.compress # silence unused import warning
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return True
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except ImportError:
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return False
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except AttributeError:
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pass
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# modern lz4 has "compress" defined in lz4.block
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try:
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from lz4 import block as lz4block
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lz4block.compress # silence unused import warning
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return True
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except (ImportError, AttributeError):
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return False
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def gethgversion():
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m = matchoutput("hg --version --quiet 2>&1", br"(\d+)\.(\d+)")
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if not m:
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return (0, 0)
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return (int(m.group(1)), int(m.group(2)))
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@checkvers("hg", "Mercurial >= %s", list([(1.0 * x) / 10 for x in range(9, 99)]))
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def has_hg_range(v):
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major, minor = v.split(".")[0:2]
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return gethgversion() >= (int(major), int(minor))
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@check("hg08", "Mercurial >= 0.8")
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def has_hg08():
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if checks["hg09"][0]():
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return True
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return matchoutput("hg help annotate 2>&1", "--date")
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@check("hg07", "Mercurial >= 0.7")
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def has_hg07():
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if checks["hg08"][0]():
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return True
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return matchoutput("hg --version --quiet 2>&1", "Mercurial Distributed SCM")
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@check("hg06", "Mercurial >= 0.6")
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def has_hg06():
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if checks["hg07"][0]():
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return True
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return matchoutput("hg --version --quiet 2>&1", "Mercurial version")
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@check("gettext", "GNU Gettext (msgfmt)")
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def has_gettext():
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return matchoutput("msgfmt --version", br"GNU gettext-tools")
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@check("git", "git command line client")
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def has_git():
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return matchoutput("git --version 2>&1", br"^git version")
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def getgitversion():
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m = matchoutput("git --version 2>&1", br"git version (\d+)\.(\d+)")
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if not m:
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return (0, 0)
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return (int(m.group(1)), int(m.group(2)))
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# https://github.com/git-lfs/lfs-test-server
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@check("lfs-test-server", "git-lfs test server")
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def has_lfsserver():
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exe = "lfs-test-server"
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if has_windows():
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exe = "lfs-test-server.exe"
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return any(
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os.access(os.path.join(path, exe), os.X_OK)
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for path in os.environ["PATH"].split(os.pathsep)
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)
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@checkvers("git", "git client (with ext::sh support) version >= %s", (1.9,))
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def has_git_range(v):
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major, minor = v.split(".")[0:2]
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return getgitversion() >= (int(major), int(minor))
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@check("docutils", "Docutils text processing library")
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def has_docutils():
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try:
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import docutils.core
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docutils.core.publish_cmdline # silence unused import
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return True
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except ImportError:
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return False
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@check("p4", "Perforce server and client")
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def has_p4():
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return matchoutput("p4 -V", br"Rev\. P4/") and matchoutput("p4d -V", br"Rev\. P4D/")
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@check("jq", "json processing tool")
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def has_jq():
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return matchoutput("jq --help", br"Usage: jq .*")
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@check("symlink", "symbolic links")
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def has_symlink():
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if getattr(os, "symlink", None) is None:
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return False
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name = tempfile.mktemp(dir=".", prefix=tempprefix)
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try:
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os.symlink(".", name)
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os.unlink(name)
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return True
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except (OSError, AttributeError):
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return False
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@check("hardlink", "hardlinks")
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def has_hardlink():
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from edenscm.mercurial import util
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fh, fn = tempfile.mkstemp(dir=".", prefix=tempprefix)
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os.close(fh)
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name = tempfile.mktemp(dir=".", prefix=tempprefix)
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try:
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util.oslink(fn, name)
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os.unlink(name)
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return True
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except OSError:
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return False
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finally:
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os.unlink(fn)
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@check("hardlink-whitelisted", "hardlinks on whitelisted filesystems")
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def has_hardlink_whitelisted():
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from edenscm.mercurial import fscap, util
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try:
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fstype = util.getfstype(".")
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except OSError:
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return False
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return bool(fscap.getfscap(fstype, fscap.HARDLINK))
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@check("rmcwd", "can remove current working directory")
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def has_rmcwd():
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ocwd = os.getcwd()
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temp = tempfile.mkdtemp(dir=".", prefix=tempprefix)
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try:
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os.chdir(temp)
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# On Linux, 'rmdir .' isn't allowed, but the other names are okay.
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# On Solaris and Windows, the cwd can't be removed by any names.
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os.rmdir(os.getcwd())
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return True
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except OSError:
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return False
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finally:
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os.chdir(ocwd)
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# clean up temp dir on platforms where cwd can't be removed
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try:
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os.rmdir(temp)
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except OSError:
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pass
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@check("tla", "GNU Arch tla client")
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def has_tla():
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return matchoutput("tla --version 2>&1", br"The GNU Arch Revision")
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@check("gpg", "gpg client")
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def has_gpg():
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return matchoutput("gpg --version 2>&1", br"GnuPG")
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@check("gpg2", "gpg client v2")
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def has_gpg2():
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return matchoutput("gpg --version 2>&1", br"GnuPG[^0-9]+2\.")
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@check("gpg21", "gpg client v2.1+")
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def has_gpg21():
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return matchoutput("gpg --version 2>&1", br"GnuPG[^0-9]+2\.(?!0)")
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@check("unix-permissions", "unix-style permissions")
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def has_unix_permissions():
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d = tempfile.mkdtemp(dir=".", prefix=tempprefix)
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try:
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fname = os.path.join(d, "foo")
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for umask in (0o77, 0o07, 0o22):
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os.umask(umask)
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f = open(fname, "w")
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f.close()
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mode = os.stat(fname).st_mode
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os.unlink(fname)
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if mode & 0o777 != ~umask & 0o666:
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return False
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return True
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finally:
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os.rmdir(d)
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@check("unix-socket", "AF_UNIX socket family")
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def has_unix_socket():
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return getattr(socket, "AF_UNIX", None) is not None
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@check("root", "root permissions")
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def has_root():
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return getattr(os, "geteuid", None) and os.geteuid() == 0
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@check("pyflakes", "Pyflakes python linter")
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def has_pyflakes():
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pyflakespath = os.environ.get("HGTEST_PYFLAKES_PATH", "pyflakes")
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return matchoutput(
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"sh -c \"echo 'import re' 2>&1 | %s\"" % pyflakespath,
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br"<stdin>:1: 're' imported but unused",
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True,
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)
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@check("pylint", "Pylint python linter")
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def has_pylint():
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return matchoutput("pylint --help", br"Usage: pylint", True)
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@check("clang-format", "clang-format C code formatter")
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def has_clang_format():
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return matchoutput(
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"clang-format --help", br"^OVERVIEW: A tool to format C/C\+\+[^ ]+ code."
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)
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@check("jshint", "JSHint static code analysis tool")
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def has_jshint():
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return matchoutput("jshint --version 2>&1", br"jshint v")
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@check("pygments", "Pygments source highlighting library")
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def has_pygments():
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try:
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import pygments
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|
|
pygments.highlight # silence unused import warning
|
|
return True
|
|
except ImportError:
|
|
return False
|
|
|
|
|
|
@check("outer-repo", "outer repo")
|
|
def has_outer_repo():
|
|
# failing for other reasons than 'no repo' imply that there is a repo
|
|
return not matchoutput("hg root 2>&1", br"abort: no repository found", True)
|
|
|
|
|
|
@check("ssl", "ssl module available")
|
|
def has_ssl():
|
|
try:
|
|
import ssl
|
|
|
|
ssl.CERT_NONE
|
|
return True
|
|
except ImportError:
|
|
return False
|
|
|
|
|
|
@check("sslcontext", "python >= 2.7.9 ssl")
|
|
def has_sslcontext():
|
|
try:
|
|
import ssl
|
|
|
|
ssl.SSLContext
|
|
return True
|
|
except (ImportError, AttributeError):
|
|
return False
|
|
|
|
|
|
@check("defaultcacerts", "can verify SSL certs by system's CA certs store")
|
|
def has_defaultcacerts():
|
|
from edenscm.mercurial import sslutil, ui as uimod
|
|
|
|
ui = uimod.ui.load()
|
|
return sslutil._defaultcacerts(ui) or sslutil._canloaddefaultcerts
|
|
|
|
|
|
@check("defaultcacertsloaded", "detected presence of loaded system CA certs")
|
|
def has_defaultcacertsloaded():
|
|
import ssl
|
|
from edenscm.mercurial import sslutil, ui as uimod
|
|
|
|
if not has_defaultcacerts():
|
|
return False
|
|
if not has_sslcontext():
|
|
return False
|
|
|
|
ui = uimod.ui.load()
|
|
cafile = sslutil._defaultcacerts(ui)
|
|
ctx = ssl.create_default_context()
|
|
if cafile:
|
|
ctx.load_verify_locations(cafile=cafile)
|
|
else:
|
|
ctx.load_default_certs()
|
|
|
|
return len(ctx.get_ca_certs()) > 0
|
|
|
|
|
|
@check("tls1.2", "TLS 1.2 protocol support")
|
|
def has_tls1_2():
|
|
from edenscm.mercurial import sslutil
|
|
|
|
return "tls1.2" in sslutil.supportedprotocols
|
|
|
|
|
|
@check("windows", "Windows")
|
|
def has_windows():
|
|
return os.name == "nt"
|
|
|
|
|
|
@check("system-sh", "system() uses sh")
|
|
def has_system_sh():
|
|
return os.name != "nt"
|
|
|
|
|
|
@check("serve", "platform and python can manage 'hg serve -d'")
|
|
def has_serve():
|
|
return True
|
|
|
|
|
|
@check("test-repo", "running tests from repository")
|
|
def has_test_repo():
|
|
# This used to check for the existence of a .hg folder to ensure a repo (so
|
|
# it can run `hg files`). Internally, we'll always have a repo, and
|
|
# externally we'll likely use git to publish so we'll need another solution
|
|
# there anyways.
|
|
return True
|
|
|
|
|
|
@check("tic", "terminfo compiler and curses module")
|
|
def has_tic():
|
|
try:
|
|
import curses
|
|
|
|
curses.COLOR_BLUE
|
|
return matchoutput('test -x "`which tic`"', br"")
|
|
except ImportError:
|
|
return False
|
|
|
|
|
|
@check("msys", "Windows with MSYS")
|
|
def has_msys():
|
|
return os.getenv("MSYSTEM")
|
|
|
|
|
|
@check("aix", "AIX")
|
|
def has_aix():
|
|
return sys.platform.startswith("aix")
|
|
|
|
|
|
@check("osx", "OS X")
|
|
def has_osx():
|
|
return sys.platform == "darwin"
|
|
|
|
|
|
@check("osxpackaging", "OS X packaging tools")
|
|
def has_osxpackaging():
|
|
try:
|
|
return (
|
|
matchoutput("pkgbuild", br"Usage: pkgbuild ", ignorestatus=1)
|
|
and matchoutput("productbuild", br"Usage: productbuild ", ignorestatus=1)
|
|
and matchoutput("lsbom", br"Usage: lsbom", ignorestatus=1)
|
|
and matchoutput("xar --help", br"Usage: xar", ignorestatus=1)
|
|
)
|
|
except ImportError:
|
|
return False
|
|
|
|
|
|
@check("linuxormacos", "Linux or MacOS")
|
|
def has_linuxormacos():
|
|
# This isn't a perfect test for MacOS. But it is sufficient for our needs.
|
|
return sys.platform.startswith(("linux", "darwin"))
|
|
|
|
|
|
@check("docker", "docker support")
|
|
def has_docker():
|
|
pat = br"A self-sufficient runtime for"
|
|
if matchoutput("docker --help", pat):
|
|
if "linux" not in sys.platform:
|
|
# TODO: in theory we should be able to test docker-based
|
|
# package creation on non-linux using boot2docker, but in
|
|
# practice that requires extra coordination to make sure
|
|
# $TESTTEMP is going to be visible at the same path to the
|
|
# boot2docker VM. If we figure out how to verify that, we
|
|
# can use the following instead of just saying False:
|
|
# return 'DOCKER_HOST' in os.environ
|
|
return False
|
|
|
|
return True
|
|
return False
|
|
|
|
|
|
@check("debhelper", "debian packaging tools")
|
|
def has_debhelper():
|
|
# Some versions of dpkg say `dpkg', some say 'dpkg' (` vs ' on the first
|
|
# quote), so just accept anything in that spot.
|
|
dpkg = matchoutput("dpkg --version", br"Debian .dpkg' package management program")
|
|
dh = matchoutput("dh --help", br"dh is a part of debhelper.", ignorestatus=True)
|
|
dh_py2 = matchoutput("dh_python2 --help", br"other supported Python versions")
|
|
# debuild comes from the 'devscripts' package, though you might want
|
|
# the 'build-debs' package instead, which has a dependency on devscripts.
|
|
debuild = matchoutput(
|
|
"debuild --help", br"to run debian/rules with given parameter"
|
|
)
|
|
return dpkg and dh and dh_py2 and debuild
|
|
|
|
|
|
@check("demandimport", "demandimport enabled")
|
|
def has_demandimport():
|
|
# chg disables demandimport intentionally for performance wins.
|
|
return (not has_chg()) and os.environ.get("HGDEMANDIMPORT") != "disable"
|
|
|
|
|
|
@check("py3k", "running with Python 3.x")
|
|
def has_py3k():
|
|
return 3 == sys.version_info[0]
|
|
|
|
|
|
@check("py3exe", "a Python 3.x interpreter is available")
|
|
def has_python3exe():
|
|
return "PYTHON3" in os.environ
|
|
|
|
|
|
@check("py3pygments", "Pygments available on Python 3.x")
|
|
def has_py3pygments():
|
|
if has_py3k():
|
|
return has_pygments()
|
|
elif has_python3exe():
|
|
# just check exit status (ignoring output)
|
|
py3 = os.environ["PYTHON3"]
|
|
return matchoutput('%s -c "import pygments"' % py3, br"")
|
|
return False
|
|
|
|
|
|
@check("pure", "running with pure Python code")
|
|
def has_pure():
|
|
return any(
|
|
[
|
|
os.environ.get("HGMODULEPOLICY") == "py",
|
|
os.environ.get("HGTEST_RUN_TESTS_PURE") == "--pure",
|
|
]
|
|
)
|
|
|
|
|
|
@check("slow", "allow slow tests (use --allow-slow-tests)")
|
|
def has_slow():
|
|
return os.environ.get("HGTEST_SLOW") == "slow"
|
|
|
|
|
|
@check("hypothesis", "Hypothesis automated test generation")
|
|
def has_hypothesis():
|
|
try:
|
|
import hypothesis
|
|
|
|
hypothesis.given
|
|
return True
|
|
except ImportError:
|
|
return False
|
|
|
|
|
|
@check("unziplinks", "unzip(1) understands and extracts symlinks")
|
|
def unzip_understands_symlinks():
|
|
return matchoutput("unzip --help", br"Info-ZIP")
|
|
|
|
|
|
@check("zstd", "zstd Python module available")
|
|
def has_zstd():
|
|
try:
|
|
from bindings import zstd
|
|
|
|
zstd.apply
|
|
return True
|
|
except ImportError:
|
|
return False
|
|
|
|
|
|
@check("devfull", "/dev/full special file")
|
|
def has_dev_full():
|
|
return os.path.exists("/dev/full")
|
|
|
|
|
|
@check("virtualenv", "Python virtualenv support")
|
|
def has_virtualenv():
|
|
try:
|
|
import virtualenv
|
|
|
|
virtualenv.ACTIVATE_SH
|
|
return True
|
|
except ImportError:
|
|
return False
|
|
|
|
|
|
@check("fsmonitor", "running tests with fsmonitor")
|
|
def has_fsmonitor():
|
|
return "HGFSMONITOR_TESTS" in os.environ
|
|
|
|
|
|
@check("fuzzywuzzy", "Fuzzy string matching library")
|
|
def has_fuzzywuzzy():
|
|
try:
|
|
import fuzzywuzzy
|
|
|
|
fuzzywuzzy.__version__
|
|
return True
|
|
except ImportError:
|
|
return False
|
|
|
|
|
|
@check("eden", "Eden HG extension")
|
|
def has_eden():
|
|
return matchoutput(
|
|
"hg --debug --config extensions.eden= --version 2>&1",
|
|
re.compile(br"^\s*eden\s+(in|ex)ternal\s*$", re.MULTILINE),
|
|
)
|
|
|
|
|
|
@check("parso", "parso parsing library")
|
|
def has_parso():
|
|
try:
|
|
import parso
|
|
|
|
parso.parse
|
|
return True
|
|
except ImportError:
|
|
return False
|