forked from importers/git-importer
171 lines
6.1 KiB
Python
171 lines
6.1 KiB
Python
import logging
|
|
import os
|
|
from pathlib import Path
|
|
|
|
import yaml
|
|
|
|
from lib.binary import is_binary_or_large
|
|
from lib.db import DB
|
|
from lib.git import Git
|
|
from lib.obs import OBS
|
|
from lib.proxy_sha256 import ProxySHA256, md5
|
|
from lib.tree_builder import TreeBuilder
|
|
|
|
|
|
class GitExporter:
|
|
def __init__(self, api_url, project, package, repodir):
|
|
self.obs = OBS()
|
|
self.project = project
|
|
self.package = package
|
|
# TODO: Store the api url in the revision
|
|
self.obs.change_url(api_url)
|
|
self.proxy_sha256 = ProxySHA256(self.obs, enabled=True)
|
|
self.git = Git(
|
|
repodir,
|
|
committer="Git OBS Bridge",
|
|
committer_email="obsbridge@suse.de",
|
|
).create()
|
|
self.state_file = os.path.join(self.git.path, ".git", "_flat_state.yaml")
|
|
self.gc_interval = 200
|
|
|
|
def download(self, revision):
|
|
obs_files = self.obs.files(revision.project, revision.package, revision.srcmd5)
|
|
git_files = {
|
|
(f.name, f.stat().st_size, md5(f))
|
|
for f in self.git.path.iterdir()
|
|
if f.is_file() and f.name not in (".gitattributes")
|
|
}
|
|
|
|
# Overwrite ".gitattributes" with the
|
|
self.git.add_default_lfs_gitattributes(force=True)
|
|
|
|
# Download each file in OBS if it is not a binary (or large)
|
|
# file
|
|
for (name, size, file_md5) in obs_files:
|
|
# this file creates easily 100k commits and is just useless data :(
|
|
# unfortunately it's stored in the same meta package as the project config
|
|
if revision.package == "_project" and name == "_staging_workflow":
|
|
continue
|
|
# have such files been detected as text mimetype before?
|
|
is_text = self.proxy_sha256.is_text(name)
|
|
if not is_text and is_binary_or_large(name, size):
|
|
file_sha256 = self.proxy_sha256.get_or_put(
|
|
revision.project,
|
|
revision.package,
|
|
name,
|
|
revision.srcmd5,
|
|
file_md5,
|
|
size,
|
|
)
|
|
self.git.add_lfs(name, file_sha256["sha256"], size)
|
|
else:
|
|
if (name, size, file_md5) not in git_files:
|
|
logging.debug(f"Download {name}")
|
|
self.obs.download(
|
|
revision.project,
|
|
revision.package,
|
|
name,
|
|
revision.srcmd5,
|
|
self.git.path,
|
|
file_md5=file_md5,
|
|
)
|
|
# Validate the MD5 of the downloaded file
|
|
if md5(self.git.path / name) != file_md5:
|
|
raise Exception(f"Download error in {name}")
|
|
self.git.add(name)
|
|
|
|
# Remove extra files
|
|
obs_names = {n for (n, _, _) in obs_files}
|
|
git_names = {n for (n, _, _) in git_files}
|
|
for name in git_names - obs_names:
|
|
logging.debug(f"Remove {name}")
|
|
self.git.remove(name)
|
|
|
|
def set_gc_interval(self, gc):
|
|
self.gc_interval = gc
|
|
|
|
def export_as_git(self):
|
|
db = DB()
|
|
tree = TreeBuilder(db).build(self.project, self.package)
|
|
flats = tree.as_flat_list()
|
|
|
|
branch_state = {"factory": None, "devel": None}
|
|
state_data = dict()
|
|
if os.path.exists(self.state_file):
|
|
with open(self.state_file, "r") as f:
|
|
state_data = yaml.safe_load(f)
|
|
if type(state_data) != dict:
|
|
state_data = {}
|
|
left_to_commit = []
|
|
for flat in reversed(flats):
|
|
found_state = False
|
|
for branch in ["factory", "devel"]:
|
|
if flat.commit.dbid == state_data.get(branch):
|
|
branch_state[branch] = flat.commit
|
|
flat.commit.git_commit = self.git.branch_head(branch)
|
|
logging.debug(
|
|
f"Found {self.git.path}'s {branch} branch in state {flat}"
|
|
)
|
|
left_to_commit = []
|
|
found_state = True
|
|
if not found_state:
|
|
left_to_commit.append(flat)
|
|
|
|
gc_cnt = self.gc_interval
|
|
if len(left_to_commit) > 0:
|
|
self.git.gc()
|
|
for flat in left_to_commit:
|
|
gc_cnt -= 1
|
|
if gc_cnt <= 0 and self.gc_interval:
|
|
self.git.gc()
|
|
gc_cnt = self.gc_interval
|
|
logging.debug(f"Committing {flat}")
|
|
self.commit_flat(flat, branch_state)
|
|
|
|
def limit_download(self, file: Path):
|
|
return file.suffix in (".spec", ".changes")
|
|
|
|
def commit_flat(self, flat, branch_state):
|
|
parents = []
|
|
self.git.checkout(flat.branch)
|
|
if flat.parent1:
|
|
parents.append(flat.parent1.git_commit)
|
|
if flat.parent2:
|
|
parents.append(flat.parent2.git_commit)
|
|
to_download, to_delete = flat.commit.calc_delta(branch_state[flat.branch])
|
|
for file in to_delete:
|
|
if not self.limit_download(file):
|
|
continue
|
|
self.git.remove(file)
|
|
for file, md5 in to_download:
|
|
if not self.limit_download(file):
|
|
continue
|
|
self.obs.download(
|
|
flat.commit.project,
|
|
flat.commit.package,
|
|
file.name,
|
|
flat.commit.expanded_srcmd5,
|
|
self.git.path,
|
|
file_md5=md5,
|
|
)
|
|
self.git.add(file)
|
|
|
|
commit = self.git.commit(
|
|
f"OBS User {flat.commit.userid}",
|
|
"null@suse.de",
|
|
flat.commit.commit_time,
|
|
# TODO: Normalize better the commit message
|
|
f"{flat.commit.comment}\n\n{flat.commit}",
|
|
allow_empty=True,
|
|
parents=parents,
|
|
)
|
|
flat.commit.git_commit = commit
|
|
branch_state[flat.branch] = flat.commit
|
|
with open(self.state_file, "w") as f:
|
|
data = {}
|
|
for branch in ["factory", "devel"]:
|
|
commit = branch_state[branch]
|
|
if commit:
|
|
data[branch] = commit.dbid
|
|
yaml.dump(data, f)
|