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Differential D5452

tests: update printenv.py argument parsing
ClosedPublic

Authored by lothiraldan on Dec 19 2018, 11:25 AM.

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Group Reviewers
hg-reviewers
Commits
rHG3c5aaea9638f: tests: update printenv.py argument parsing
rHG07b15f64e560: tests: update printenv.py argument parsing
Summary

We are about to introduce a new flag for printing the HG environment variables
one per line and it's easier to do when using the argparse module for argument
parsing.

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Repository
rHG Mercurial
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Unit
Unit Tests Skipped

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Mtests/printenv.py (31 lines)

Diff 12899

tests/printenv.py

#!/usr/bin/env python #!/usr/bin/env python
# #
# simple script to be used in hooks # simple script to be used in hooks
# #
# put something like this in the repo .hg/hgrc: # put something like this in the repo .hg/hgrc:
# #
# [hooks] # [hooks]
# changegroup = python "$TESTDIR/printenv.py" <hookname> [exit] [output] # changegroup = python "$TESTDIR/printenv.py" <hookname> [exit] [output]
# #
# - <hookname> is a mandatory argument (e.g. "changegroup") # - <hookname> is a mandatory argument (e.g. "changegroup")
# - [exit] is the exit code of the hook (default: 0) # - [exit] is the exit code of the hook (default: 0)
# - [output] is the name of the output file (default: use sys.stdout) # - [output] is the name of the output file (default: use sys.stdout)
# the file will be opened in append mode. # the file will be opened in append mode.
# #
from __future__ import absolute_import from __future__ import absolute_import
import argparse
import os import os
import sys import sys
try: try:
import msvcrt import msvcrt
msvcrt.setmode(sys.stdin.fileno(), os.O_BINARY) msvcrt.setmode(sys.stdin.fileno(), os.O_BINARY)
msvcrt.setmode(sys.stdout.fileno(), os.O_BINARY) msvcrt.setmode(sys.stdout.fileno(), os.O_BINARY)
msvcrt.setmode(sys.stderr.fileno(), os.O_BINARY) msvcrt.setmode(sys.stderr.fileno(), os.O_BINARY)
except ImportError: except ImportError:
pass pass
exitcode = 0 parser = argparse.ArgumentParser()
out = sys.stdout parser.add_argument("name", help="the hook name, used for display")
out = getattr(out, 'buffer', out) 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"
)
args = parser.parse_args()
name = sys.argv[1] if args.out is None:
if len(sys.argv) > 2: out = sys.stdout
exitcode = int(sys.argv[2]) out = getattr(out, "buffer", out)
if len(sys.argv) > 3: else:
out = open(sys.argv[3], "ab") out = open(args.out, "ab")
# variables with empty values may not exist on all platforms, filter # variables with empty values may not exist on all platforms, filter
# them now for portability sake. # them now for portability sake.
env = [(k, v) for k, v in os.environ.items() env = [(k, v) for k, v in os.environ.items()
if k.startswith("HG_") and v] if k.startswith("HG_") and v]
env.sort() env.sort()
out.write(b"%s hook: " % name.encode('ascii')) out.write(b"%s hook: " % args.name.encode('ascii'))
if os.name == 'nt': if os.name == 'nt':
filter = lambda x: x.replace('\\', '/') filter = lambda x: x.replace('\\', '/')
else: else:
filter = lambda x: x filter = lambda x: x
vars = [b"%s=%s" % (k.encode('ascii'), filter(v).encode('ascii')) vars = [b"%s=%s" % (k.encode('ascii'), filter(v).encode('ascii'))
for k, v in env] for k, v in env]
out.write(b" ".join(vars)) out.write(b" ".join(vars))
out.write(b"\n") out.write(b"\n")
out.close() out.close()
sys.exit(exitcode) sys.exit(args.exitcode)