git-importer/lib/git.py

292 lines
9.3 KiB
Python

import fnmatch
import logging
import os
import pathlib
import subprocess
import requests
from lib.binary import BINARY
LFS_SUFFIX = "filter=lfs diff=lfs merge=lfs -text"
class Git:
"""Local git repository"""
def __init__(self, path, committer=None, committer_email=None):
self.path = pathlib.Path(path)
self.committer = committer
self.committer_email = committer_email
def exists(self):
"""Check if the path is a valid git repository"""
return (self.path / ".git").exists()
def create(self):
"""Create a local git repository"""
self.path.mkdir(parents=True, exist_ok=True)
self.open()
def open(self):
subprocess.run(
['git', 'init', '--object-format=sha256', '-b', 'factory'],
cwd=self.path,
check=True,
)
def is_dirty(self):
"""Check if there is something to commit"""
status_str = subprocess.run(
['git', 'status', '--porcelain=2'],
cwd=self.path,
stdout=subprocess.PIPE,
check=True
).stdout.decode('utf-8')
return len(list(filter(None, status_str.split('\n')))) > 0
def branches(self):
br=subprocess.run(
['git', 'for-each-ref', '--format=%(refname:short)', 'refs/heads/'],
cwd=self.path,
check=True,
stdout=subprocess.PIPE
).stdout.decode('utf-8').split()
if len(br) == 0:
br.append('factory') # unborn branch?
return br
def branch(self, branch, commit='HEAD'):
commit = subprocess.run(
['git', 'rev-parse', '--verify', '--end-of-options', commit + '^{commit}'],
cwd=self.path,
check=True,
stdout=subprocess.PIPE
).stdout.decode('utf-8').strip()
return subprocess.run(['git', 'branch', branch, commit], check=True)
def checkout(self, branch):
"""Checkout into the branch HEAD"""
new_branch = False
if branch not in self.branches():
subprocess.run(
['git', 'branch', '-q', branch, 'HEAD'],
cwd=self.path,
check=True
)
new_branch = True
else:
ref = f"refs/heads/{branch}"
if (self.path/'.git'/ref).exists():
subprocess.run(
['git', 'checkout', '-q', branch],
cwd=self.path,
check=True
)
return new_branch
def commit(
self,
user,
user_email,
user_time,
message,
parents=None,
committer=None,
committer_email=None,
committer_time=None,
):
"""Add all the files and create a new commit in the current HEAD"""
if not committer:
committer = self.committer if self.committer else self.user
committer_email = (
self.committer_email if self.committer_email else self.user_email
)
committer_time = committer_time if committer_time else user_time
if self.is_dirty():
subprocess.run(
["git", "add", "--all", "."],
cwd=self.path,
check=True,
)
tree_id = subprocess.run(
['git', 'write-tree'],
cwd=self.path,
check=True,
stdout=subprocess.PIPE
).stdout.decode('utf-8').strip()
parent_array = []
if isinstance(parents, list):
for parent in filter(None, parents):
parent_array = parent_array + ['-p', parent]
elif isinstance(parents, str):
parents_array = ['-p', parents]
commit_id = subprocess.run(
['git', 'commit-tree'] + parent_array + [tree_id],
cwd=self.path,
env={
"GIT_AUTHOR_NAME": user,
"GIT_AUTHOR_EMAIL": user_email,
"GIT_AUTHOR_DATE": f"{int(user_time.timestamp())} +0000",
"GIT_COMMITTER_NAME": committer,
"GIT_COMMITTER_EMAIL": committer_email,
"GIT_COMMITTER_DATE": f"{int(committer_time.timestamp())} +0000",
},
input=message.encode('utf-8'),
check=True,
stdout=subprocess.PIPE
).stdout.decode('utf-8').rstrip()
subprocess.run(
['git', 'reset', '--soft', commit_id],
cwd=self.path,
check=True,
)
return commit_id
def branch_head(self, branch='HEAD'):
return subprocess.run(
['git', 'rev-parse', '--verify', '--end-of-options', branch],
cwd=self.path,
check=True,
stdout=subprocess.PIPE
).stdout.decode('utf-8').strip()
def set_branch_head(self, branch, commit):
return subprocess.run(
['git', 'branch', '-f', branch, commit],
cwd=self.path,
check=True,
)
def gc(self):
logging.debug(f"Garbage recollect and repackage {self.path}")
subprocess.run(
["git", "gc", "--auto"],
cwd=self.path,
stdout=subprocess.PIPE,
stderr=subprocess.STDOUT,
)
# def clean(self):
# for path, _ in self.repo.status().items():
# logging.debug(f"Cleaning {path}")
# try:
# (self.path / path).unlink()
# self.repo.index.remove(path)
# except Exception as e:
# logging.warning(f"Error removing file {path}: {e}")
def add(self, filename):
subprocess.run(
['git', 'add', filename],
cwd=self.path,
check=True,
)
def add_default_lfs_gitattributes(self, force=False):
if not (self.path / ".gitattributes").exists() or force:
with (self.path / ".gitattributes").open("w") as f:
content = ["## Default LFS"]
content += [f"*{b} {LFS_SUFFIX}" for b in sorted(BINARY)]
f.write("\n".join(content))
f.write("\n")
self.add(".gitattributes")
def add_specific_lfs_gitattributes(self, binaries):
self.add_default_lfs_gitattributes(force=True)
if binaries:
with (self.path / ".gitattributes").open("a") as f:
content = ["## Specific LFS patterns"]
content += [f"{b} {LFS_SUFFIX}" for b in sorted(binaries)]
f.write("\n".join(content))
f.write("\n")
self.add(".gitattributes")
def get_specific_lfs_gitattributes(self):
with (self.path / ".gitattributes").open() as f:
patterns = [
line.split()[0]
for line in f
if line.strip() and not line.startswith("#")
]
binary = {f"*{b}" for b in BINARY}
return [p for p in patterns if p not in binary]
def add_lfs(self, filename, sha256, size):
with (self.path / filename).open("w") as f:
f.write("version https://git-lfs.github.com/spec/v1\n")
f.write(f"oid sha256:{sha256}\n")
f.write(f"size {size}\n")
self.add(filename)
if not self.is_lfs_tracked(filename):
logging.debug(f"Add specific LFS file {filename}")
specific_patterns = self.get_specific_lfs_gitattributes()
specific_patterns.append(filename)
self.add_specific_lfs_gitattributes(specific_patterns)
def is_lfs_tracked(self, filename):
with (self.path / ".gitattributes").open() as f:
patterns = (
line.split()[0]
for line in f
if line.strip() and not line.startswith("#")
)
return any(fnmatch.fnmatch(filename, line) for line in patterns)
def remove(self, file: pathlib.Path):
subprocess.run(
['git', 'rm', '-q', '--ignore-unmatch', file.name],
cwd=self.path,
check=True,
)
patterns = self.get_specific_lfs_gitattributes()
if file.name in patterns:
patterns.remove(file.name)
self.add_specific_lfs_gitattributes(patterns)
def add_gitea_remote(self, package):
repo_name = package.replace("+", "_")
org_name = "rpm"
if not os.getenv("GITEA_TOKEN"):
logging.warning("Not adding a remote due to missing $GITEA_TOKEN")
return
url = f"https://src.opensuse.org/api/v1/org/{org_name}/repos"
response = requests.post(
url,
data={"name": repo_name},
headers={"Authorization": f"token {os.getenv('GITEA_TOKEN')}"},
timeout=10,
)
# 409 Conflict (Already existing)
# 201 Created
if response.status_code not in (201, 409):
print(response.data)
url = f"gitea@src.opensuse.org:{org_name}/{repo_name}.git"
subprocess.run(
['git', 'remote', 'add', 'origin', url],
cwd=self.path,
check=True,
)
def push(self, force=False):
cmd = ['git', 'push'];
if force:
cmd.append('-f')
cmd.append('origin')
cmd.append('refs/heads/factory');
cmd.append('refs/heads/devel');
subprocess.run(
cmd,
cwd=self.path,
check=True,
)