forked from Mirror/wren
f866ee7003
Instead of dynamically downloading these as needed during a build, this checks in those two dependencies directly into the Wren repo. That's a little lame because users of Wren who aren't building the CLI don't actually need them, but they aren't too big, so it's not a huge deal. It makes builds (particularly on Travis) more reliable, because they don't have to pull down additional content over the network.
78 lines
1.8 KiB
Python
78 lines
1.8 KiB
Python
# Utility functions used by other Python files in this directory.
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from __future__ import print_function
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import os
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import os.path
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import platform
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import shutil
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import subprocess
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import sys
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def python2_binary():
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"""Tries to find a python 2 executable."""
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# Using [0] instead of .major here to support Python 2.6.
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if sys.version_info[0] == 2:
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return sys.executable or "python"
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else:
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return "python2"
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def clean_dir(dir):
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"""If dir exists, deletes it and recreates it, otherwise creates it."""
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if os.path.isdir(dir):
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remove_dir(dir)
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os.makedirs(dir)
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def ensure_dir(dir):
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"""Creates dir if not already there."""
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if os.path.isdir(dir):
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return
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os.makedirs(dir)
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def remove_dir(dir):
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"""Recursively removes dir."""
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if platform.system() == "Windows":
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# rmtree gives up on readonly files on Windows
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# rd doesn't like paths with forward slashes
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subprocess.check_call(
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['cmd', '/c', 'rd', '/s', '/q', dir.replace('/', '\\')])
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else:
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shutil.rmtree(dir)
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def replace_in_file(path, text, replace):
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"""Replaces all occurrences of `text` in the file at `path` with `replace`."""
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with open(path) as file:
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contents = file.read()
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contents = contents.replace(text, replace)
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with open(path, "w") as file:
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file.write(contents)
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def run(args, cwd=None):
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"""Spawn a process to invoke [args] and mute its output."""
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try:
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# check_output() was added in Python 2.7.
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has_check_output = (sys.version_info[0] > 2 or
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(sys.version_info[0] == 2 and sys.version_info[1] >= 7))
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if has_check_output:
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subprocess.check_output(args, cwd=cwd, stderr=subprocess.STDOUT)
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else:
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proc = subprocess.Popen(args, cwd=cwd, stdout=subprocess.PIPE)
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proc.communicate()[0].split()
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except subprocess.CalledProcessError as error:
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print(error.output)
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sys.exit(error.returncode)
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