Mercurial > hg
view tests/printenv.py @ 42175:cd1bede340b0 stable
setup: tweak error message for Python 3
We now have beta support for Python 3. In my opinion, it isn't
yet stable enough to allow `pip install Mercurial` to work with
Python 3 out of the box: we don't want people accidentally using
Mercurial with Python 3 just yet.
But I do think we should be more friendly about informing people
of their options.
This commit tweaks the error message that users see when running
setup.py with Python 3. We instruct them about the current level
of Python 3 support, point them at the wiki for more info, and
give them instructions on how to bypass the check.
As part of this, I also changed which version value is printed,
as we were printing a named tuple before.
author | Gregory Szorc <gregory.szorc@gmail.com> |
---|---|
date | Sun, 21 Apr 2019 08:57:01 -0700 |
parents | 73da729ccfef |
children | 2372284d9457 |
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#!/usr/bin/env python # # simple script to be used in hooks # # put something like this in the repo .hg/hgrc: # # [hooks] # changegroup = python "$TESTDIR/printenv.py" <hookname> [exit] [output] # # - <hookname> is a mandatory argument (e.g. "changegroup") # - [exit] is the exit code of the hook (default: 0) # - [output] is the name of the output file (default: use sys.stdout) # the file will be opened in append mode. # from __future__ import absolute_import import argparse import os import sys try: import msvcrt msvcrt.setmode(sys.stdin.fileno(), os.O_BINARY) msvcrt.setmode(sys.stdout.fileno(), os.O_BINARY) msvcrt.setmode(sys.stderr.fileno(), os.O_BINARY) except ImportError: pass parser = argparse.ArgumentParser() parser.add_argument("name", help="the hook name, used for display") parser.add_argument( "exitcode", nargs="?", default=0, type=int, help="the exit code for the hook", ) parser.add_argument( "out", nargs="?", default=None, help="where to write the output" ) parser.add_argument( "--line", action="store_true", help="print environment variables one per line instead of on a single line", ) args = parser.parse_args() if args.out is None: out = sys.stdout out = getattr(out, "buffer", out) else: out = open(args.out, "ab") # variables with empty values may not exist on all platforms, filter # them now for portability sake. env = [(k, v) for k, v in os.environ.items() if k.startswith("HG_") and v] env.sort() out.write(b"%s hook: " % args.name.encode('ascii')) if os.name == 'nt': filter = lambda x: x.replace('\\', '/') else: filter = lambda x: x vars = [b"%s=%s" % (k.encode('ascii'), filter(v).encode('ascii')) for k, v in env] # Print variables on out if not args.line: out.write(b" ".join(vars)) else: for var in vars: out.write(var) out.write(b"\n") out.write(b"\n") out.close() sys.exit(args.exitcode)