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"""Functions to manage the installation of dependencies.""" |
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import os |
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import functools |
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import logging |
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from . import common |
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from .config import load |
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log = logging.getLogger(__name__) |
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def restore_cwd(func): |
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@functools.wraps(func) |
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def wrapped(*args, **kwargs): |
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cwd = os.getcwd() |
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result = func(*args, **kwargs) |
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os.chdir(cwd) |
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return result |
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return wrapped |
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@restore_cwd |
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def install(*names, root=None, depth=None, |
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force=False, fetch=False, clean=True): |
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"""Install dependencies for a project. |
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Optional arguments: |
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- `*names`: optional list of dependency directory names to filter on |
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- `root`: specifies the path to the root working tree |
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- `depth`: number of levels of dependencies to traverse |
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- `force`: indicates uncommitted changes can be overwritten |
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- `fetch`: indicates the latest branches should always be fetched |
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- `clean`: indicates untracked files should be deleted from dependencies |
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""" |
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log.info("%sInstalling dependencies: %s", |
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'force-' if force else '', |
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', '.join(names) if names else '<all>') |
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count = None |
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root = _find_root(root) |
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config = load(root) |
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if config: |
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common.show("Installing dependencies...", log=False) |
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common.show() |
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count = config.install_deps(*names, update=False, depth=depth, |
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force=force, fetch=fetch, clean=clean) |
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return _display_result("install", "Installed", count) |
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@restore_cwd |
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def update(*names, root=None, depth=None, |
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recurse=False, force=False, clean=True, lock=None): # pylint: disable=redefined-outer-name |
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"""Update dependencies for a project. |
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Optional arguments: |
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- `*names`: optional list of dependency directory names to filter on |
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- `root`: specifies the path to the root working tree |
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- `depth`: number of levels of dependencies to traverse |
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- `recurse`: indicates nested dependencies should also be updated |
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- `force`: indicates uncommitted changes can be overwritten |
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- `clean`: indicates untracked files should be deleted from dependencies |
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- `lock`: indicates actual dependency versions should be recorded |
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""" |
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log.info("%s dependencies%s: %s", |
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'Force updating' if force else 'Updating', |
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', recursively' if recurse else '', |
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', '.join(names) if names else '<all>') |
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count = None |
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root = _find_root(root) |
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config = load(root) |
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if config: |
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common.show("Updating dependencies...", log=False) |
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common.show() |
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count = config.install_deps( |
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*names, update=True, depth=depth, |
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recurse=recurse, force=force, fetch=True, clean=clean) |
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common.dedent(level=0) |
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if count and lock is not False: |
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common.show("Recording installed versions...", log=False) |
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common.show() |
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config.lock_deps(*names, obey_existing=lock is None) |
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return _display_result("update", "Updated", count) |
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@restore_cwd |
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def display(root=None, depth=None, allow_dirty=True): |
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"""Display installed dependencies for a project. |
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Optional arguments: |
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- `root`: specifies the path to the root working tree |
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- `depth`: number of levels of dependencies to traverse |
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- `allow_dirty`: causes uncommitted changes to be ignored |
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""" |
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log.info("Displaying dependencies...") |
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count = None |
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root = _find_root(root) |
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config = load(root) |
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if config: |
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common.show("Displaying current dependency versions...", log=False) |
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common.show() |
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count = len(list(config.get_deps(depth=depth, allow_dirty=allow_dirty))) |
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return _display_result("display", "Displayed", count) |
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@restore_cwd |
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def lock(*names, root=None): |
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"""Lock current dependency versions for a project. |
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Optional arguments: |
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- `*names`: optional list of dependency directory names to filter on |
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- `root`: specifies the path to the root working tree |
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""" |
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log.info("Locking dependencies...") |
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count = None |
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root = _find_root(root) |
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config = load(root) |
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if config: |
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common.show("Locking dependencies...", log=False) |
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common.show() |
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count = config.lock_deps(*names, obey_existing=False) |
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common.dedent(level=0) |
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return _display_result("lock", "Locked", count) |
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@restore_cwd |
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def delete(root=None, force=False): |
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"""Delete dependencies for a project. |
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Optional arguments: |
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- `root`: specifies the path to the root working tree |
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- `force`: indicates uncommitted changes can be overwritten |
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""" |
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log.info("Deleting dependencies...") |
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count = None |
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root = _find_root(root) |
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config = load(root) |
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if config: |
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common.show("Checking for uncommitted changes...", log=False) |
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common.show() |
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count = len(list(config.get_deps(allow_dirty=force))) |
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common.dedent(level=0) |
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common.show("Deleting all dependencies...", log=False) |
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common.show() |
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config.uninstall_deps() |
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return _display_result("delete", "Deleted", count, allow_zero=True) |
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def _find_root(root, cwd=None): |
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if cwd is None: |
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cwd = os.getcwd() |
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log.info("Current directory: %s", cwd) |
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if root: |
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root = os.path.abspath(root) |
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log.info("Specified root: %s", root) |
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else: |
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path = cwd |
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prev = None |
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log.info("Searching for root...") |
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while path != prev: |
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log.debug("Checking path: %s", path) |
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if '.git' in os.listdir(path): |
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root = path |
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break |
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prev = path |
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path = os.path.dirname(path) |
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if root: |
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log.info("Found root: %s", root) |
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else: |
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root = cwd |
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log.warning("No root found, default: %s", root) |
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return root |
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def _display_result(present, past, count, allow_zero=False): |
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"""Convert a command's dependency count to a return status. |
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>>> _display_result("sample", "Sampled", 1) |
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True |
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>>> _display_result("sample", "Sampled", None) |
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False |
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>>> _display_result("sample", "Sampled", 0) |
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False |
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>>> _display_result("sample", "Sampled", 0, allow_zero=True) |
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True |
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""" |
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if count is None: |
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log.warning("No dependencies to %s", present) |
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elif count == 1: |
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log.info("%s 1 dependency", past) |
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else: |
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log.info("%s %s dependencies", past, count) |
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if count: |
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return True |
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elif count is None: |
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return False |
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else: |
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assert count == 0 |
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return allow_zero |
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jacebrowning /
gdm
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The coding style of this project requires that you add a docstring to this code element. Below, you find an example for methods:
If you would like to know more about docstrings, we recommend to read PEP-257: Docstring Conventions.