95 lines
3.6 KiB
Python
95 lines
3.6 KiB
Python
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from git import Repo
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from git.exc import GitError
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import hashlib
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import re
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from SCons.Script import *
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Import('env')
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def _clone(env: Environment, repo_name: str, remote_url: str):
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repo_dir = os.path.join(env['CLONE_DIR'], 'git', repo_name, '_bare')
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try:
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repo = Repo(repo_dir)
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origin = repo.remotes['origin']
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except GitError:
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print(f'Initializing git repository at {repo_dir}.')
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repo = Repo.init(repo_dir, bare=True)
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origin = repo.create_remote('origin', remote_url)
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return repo, origin
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def _git_branch(env: Environment, repo_name: str, remote_url: str, git_ref: str = 'main') -> dict:
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repo, origin = _clone(env, repo_name, remote_url)
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worktree_dir = os.path.join(env['CLONE_DIR'], 'git', repo_name, hashlib.shake_128(git_ref.encode('utf-8')).hexdigest(6)) # TODO: commit hash would be better, right? -> not if it's a branch!
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if not os.path.exists(worktree_dir):
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print(f'Checking out into {worktree_dir}.')
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origin.fetch(tags=True)
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os.makedirs(worktree_dir)
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repo.git.worktree('add', worktree_dir, git_ref)
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elif env['UPDATE_REPOSITORIES']:
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worktree_repo = Repo(worktree_dir)
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if not worktree_repo.head.is_detached:
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print(f'Updating git repository at {worktree_dir}')
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worktree_origin = worktree_repo.remotes['origin']
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worktree_origin.pull()
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else:
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print(f'Not updating git repository {worktree_dir} as it is not on a branch.')
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return {
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'checkout_root': worktree_dir
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}
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def _git_tags(env: Environment, repo_name: str, remote_url: str, force_fetch: bool = False) -> 'list[str]':
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repo, origin = _clone(env, repo_name, remote_url)
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if force_fetch or env['UPDATE_REPOSITORIES']:
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origin.fetch(tags=True)
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return [t.name for t in repo.tags]
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def _make_callable(val):
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if callable(val):
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return val
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else:
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return lambda env: val
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def _git_recipe(env: Environment, globals: dict, repo_name, repo_url, cook_fn, versions = None, tag_pattern = None, tag_fn = None, ref_fn = None, dependencies: dict = {}) -> None:
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_repo_name = _make_callable(repo_name)
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_repo_url = _make_callable(repo_url)
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_tag_pattern = _make_callable(tag_pattern)
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versions_cb = versions and _make_callable(versions)
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def _versions(env: Environment, update: bool = False):
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pattern = _tag_pattern(env)
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if pattern:
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tags = env.GitTags(repo_name = _repo_name(env), remote_url = _repo_url(env), force_fetch=update)
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result = []
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for tag in tags:
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match = pattern.match(tag)
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if match:
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result.append(tuple(int(part) for part in match.groups() if part is not None))
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if len(result) == 0 and not update:
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return _versions(env, update=True)
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return result
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elif versions_cb:
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return versions_cb(env)
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else:
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return [(0, 0, 0)]
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def _dependencies(env: Environment, version) -> 'dict':
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return dependencies
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def _cook(env: Environment, version) -> dict:
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if tag_fn:
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git_ref = f'refs/tags/{tag_fn(version)}'
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else:
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assert ref_fn
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git_ref = ref_fn(env, version)
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repo = env.GitBranch(repo_name = _repo_name(env), remote_url = _repo_url(env), git_ref = git_ref)
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return cook_fn(env, repo)
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globals['versions'] = _versions
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globals['dependencies'] = _dependencies
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globals['cook'] = _cook
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env.AddMethod(_git_branch, 'GitBranch')
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env.AddMethod(_git_tags, 'GitTags')
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env.AddMethod(_git_recipe, 'GitRecipe')
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Return('env') |