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# -*- coding: utf-8 -*- |
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"""Cookiecutter repository functions.""" |
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from __future__ import unicode_literals |
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import os |
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import re |
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from .exceptions import RepositoryNotFound |
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from .vcs import clone |
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REPO_REGEX = re.compile(r""" |
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(?x) |
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((((git|hg)\+)?(git|ssh|https?):(//)?) # something like git:// ssh:// etc. |
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| # or |
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(\w+@[\w\.]+) # something like user@... |
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) |
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""") |
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def is_repo_url(value): |
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"""Return True if value is a repository URL.""" |
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return bool(REPO_REGEX.match(value)) |
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def expand_abbreviations(template, abbreviations): |
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""" |
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Expand abbreviations in a template name. |
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:param template: The project template name. |
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:param abbreviations: Abbreviation definitions. |
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""" |
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if template in abbreviations: |
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return abbreviations[template] |
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# Split on colon. If there is no colon, rest will be empty |
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# and prefix will be the whole template |
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prefix, sep, rest = template.partition(':') |
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if prefix in abbreviations: |
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return abbreviations[prefix].format(rest) |
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return template |
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def repository_has_cookiecutter_json(repo_directory): |
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"""Determines if `repo_directory` contains a `cookiecutter.json` file. |
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:param repo_directory: The candidate repository directory. |
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:return: True if the `repo_directory` is valid, else False. |
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""" |
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repo_directory_exists = os.path.isdir(repo_directory) |
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repo_config_exists = os.path.isfile( |
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os.path.join(repo_directory, 'cookiecutter.json') |
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) |
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return repo_directory_exists and repo_config_exists |
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def determine_repo_dir(template, abbreviations, clone_to_dir, checkout, |
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no_input): |
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""" |
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Locate the repository directory from a template reference. |
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Applies repository abbreviations to the template reference. |
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If the template refers to a repository URL, clone it. |
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If the template is a path to a local repository, use it. |
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:param template: A directory containing a project template directory, |
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or a URL to a git repository. |
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:param abbreviations: A dictionary of repository abbreviation |
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definitions. |
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:param clone_to_dir: The directory to clone the repository into. |
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:param checkout: The branch, tag or commit ID to checkout after clone. |
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:param no_input: Prompt the user at command line for manual configuration? |
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:return: The cookiecutter template directory |
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:raises: `RepositoryNotFound` if a repository directory could not be found. |
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""" |
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template = expand_abbreviations(template, abbreviations) |
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if is_repo_url(template): |
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repo_dir = clone( |
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repo_url=template, |
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checkout=checkout, |
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clone_to_dir=clone_to_dir, |
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no_input=no_input, |
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) |
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else: |
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# If it's a local repo, no need to clone or copy to your |
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# cookiecutters_dir |
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repo_dir = template |
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if repository_has_cookiecutter_json(repo_dir): |
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return repo_dir |
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raise RepositoryNotFound( |
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'The repository {} could not be located or does not contain ' |
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'a "cookiecutter.json" file.'.format(repo_dir) |
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) |
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