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"""Wrappers for the dependency configuration files.""" |
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import os |
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import logging |
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import yorm |
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from yorm.types import String, AttributeDictionary |
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from .. import common |
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from .. import git |
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from .. import shell |
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from ..exceptions import InvalidConfig, InvalidRepository, UncommittedChanges |
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log = logging.getLogger(__name__) |
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@yorm.attr(dir=String) |
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@yorm.attr(repo=String) |
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@yorm.attr(link=String) |
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@yorm.attr(rev=String) |
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class Source(AttributeDictionary): |
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"""A dictionary of `git` and `ln` arguments.""" |
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DIRTY = '<dirty>' |
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UNKNOWN = '<unknown>' |
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def __init__(self, repo, name, rev='master', link=None): |
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super().__init__() |
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self.repo = repo |
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self.dir = name |
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self.rev = rev |
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self.link = link |
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if not self.repo: |
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raise InvalidConfig("'repo' missing on {}".format(repr(self))) |
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if not self.dir: |
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raise InvalidConfig("'dir' missing on {}".format(repr(self))) |
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def __repr__(self): |
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return "<source {}>".format(self) |
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def __str__(self): |
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fmt = "'{r}' @ '{v}' in '{d}'" |
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if self.link: |
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fmt += " <- '{s}'" |
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return fmt.format(r=self.repo, v=self.rev, d=self.dir, s=self.link) |
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def __eq__(self, other): |
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return self.dir == other.dir |
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def __ne__(self, other): |
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return self.dir != other.dir |
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def __lt__(self, other): |
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return self.dir < other.dir |
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def update_files(self, force=False, fetch=False, clean=True): |
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"""Ensure the source matches the specified revision.""" |
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log.info("Updating source files...") |
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# Enter the working tree |
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if not os.path.exists(self.dir): |
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log.debug("Creating a new repository...") |
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git.clone(self.repo, self.dir) |
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shell.cd(self.dir) |
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# Check for uncommitted changes |
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if not force: |
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log.debug("Confirming there are no uncommitted changes...") |
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if git.changes(include_untracked=clean): |
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common.show() |
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msg = "Uncommitted changes: {}".format(os.getcwd()) |
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raise UncommittedChanges(msg) |
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# Fetch the desired revision |
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if fetch or self.rev not in (git.get_branch(), |
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git.get_hash(), |
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git.get_tag()): |
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git.fetch(self.repo, self.rev) |
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# Update the working tree to the desired revision |
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git.update(self.rev, fetch=fetch, clean=clean) |
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def create_link(self, root, force=False): |
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"""Create a link from the target name to the current directory.""" |
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if self.link: |
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log.info("Creating a symbolic link...") |
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target = os.path.join(root, self.link) |
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source = os.path.relpath(os.getcwd(), os.path.dirname(target)) |
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if os.path.islink(target): |
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os.remove(target) |
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elif os.path.exists(target): |
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if force: |
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shell.rm(target) |
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else: |
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common.show() |
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msg = "Preexisting link location: {}".format(target) |
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raise UncommittedChanges(msg) |
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shell.ln(source, target) |
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def identify(self, allow_dirty=True, allow_missing=True): |
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"""Get the path and current repository URL and hash.""" |
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if os.path.isdir(self.dir): |
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shell.cd(self.dir) |
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path = os.getcwd() |
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url = git.get_url() |
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if git.changes(display_status=not allow_dirty, _show=True): |
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revision = self.DIRTY |
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if not allow_dirty: |
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common.show() |
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msg = "Uncommitted changes: {}".format(os.getcwd()) |
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raise UncommittedChanges(msg) |
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else: |
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revision = git.get_hash(_show=True) |
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common.show(revision, log=False) |
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return path, url, revision |
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elif allow_missing: |
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return os.getcwd(), '<missing>', self.UNKNOWN |
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else: |
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path = os.path.join(os.getcwd(), self.dir) |
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msg = "Not a valid repository: {}".format(path) |
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raise InvalidRepository(msg) |
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def lock(self): |
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"""Return a locked version of the current source.""" |
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_, _, revision = self.identify(allow_missing=False) |
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source = self.__class__(self.repo, self.dir, revision, self.link) |
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return source |
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jacebrowning /
gitman
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Cyclic imports may cause partly loaded modules to be returned. This might lead to unexpected runtime behavior which is hard to debug.