forked from importers/git-importer
317 lines
11 KiB
Python
317 lines
11 KiB
Python
from __future__ import annotations
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from hashlib import md5
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from pathlib import Path
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from typing import Optional
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from lib.db import DB
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from lib.obs_revision import OBSRevision
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from lib.request import Request
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class DBRevision:
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def __init__(self, db: DB, row: tuple):
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# need to stay in sync with the schema creation in db.py
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(
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self.dbid,
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self.project,
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self.package,
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self.rev,
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self.unexpanded_srcmd5,
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self.commit_time,
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self.userid,
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self.comment,
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self.broken,
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self.expanded_srcmd5,
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self.request_number,
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self.request_id,
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self.files_hash,
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) = row
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self.rev = float(self.rev)
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self._files = None
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self.db = db
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self.git_commit = None
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def short_string(self):
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return f"{self.project}/{self.package}/{self.rev}"
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def __str__(self):
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return f"Rev {self.project}/{self.package}/{self.rev} Md5 {self.unexpanded_srcmd5} {self.commit_time} {self.userid} {self.request_number}"
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def __repr__(self):
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return f"[{self.__str__()}]"
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def __eq__(self, other):
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return self.dbid == other.dbid
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def __lt__(self, other):
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if self.project != other.project:
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return self.project < other.project
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if self.package != other.package:
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return self.package < other.package
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return self.rev < other.rev
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def git_commit_message(self):
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# TODO: Normalize better the commit message
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return f"{self.comment}\n\n{self}"
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def as_dict(self):
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"""Return a dict we can put into YAML for test cases"""
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ret = {
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"project": self.project,
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"package": self.package,
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"rev": self.rev,
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"unexpanded_srcmd5": self.unexpanded_srcmd5,
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"commit_time": self.commit_time,
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"userid": self.userid,
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"comment": self.comment,
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"broken": self.broken,
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"expanded_srcmd5": self.expanded_srcmd5,
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"files_hash": self.files_hash,
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"files": self.files_list(),
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}
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if self.request_id:
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ret["request"] = Request.find(self.db, self.request_id).as_dict()
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return ret
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def links_to(self, project: str, package: str) -> None:
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with self.db.cursor() as cur:
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cur.execute(
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"INSERT INTO links (revision_id, project, package) VALUES (%s,%s,%s)",
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(self.dbid, project, package),
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)
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@staticmethod
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def import_obs_rev(db: DB, revision: OBSRevision):
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with db.cursor() as cur:
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cur.execute(
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"""INSERT INTO revisions (project, package, rev, unexpanded_srcmd5, commit_time, userid, comment, request_number)
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VALUES(%s, %s, %s, %s, %s, %s, %s, %s)""",
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(
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revision.project,
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revision.package,
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revision.rev,
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revision.unexpanded_srcmd5,
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revision.time,
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revision.userid,
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revision.comment,
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revision.request_number,
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),
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)
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return DBRevision.fetch_revision(
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db, revision.project, revision.package, revision.rev
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)
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@staticmethod
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def fetch_revision(db, project, package, rev):
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with db.cursor() as cur:
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cur.execute(
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"SELECT * FROM revisions where project=%s and package=%s and rev=%s",
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(project, package, str(rev)),
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)
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row = cur.fetchone()
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if row:
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return DBRevision(db, row)
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@staticmethod
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def max_rev(db, project, package):
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with db.cursor() as cur:
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cur.execute(
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"SELECT MAX(rev) FROM revisions where project=%s and package=%s",
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(project, package),
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)
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return cur.fetchone()[0]
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return None
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@staticmethod
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def latest_revision(db, project, package):
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max = DBRevision.max_rev(db, project, package)
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if max:
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return DBRevision.fetch_revision(db, project, package, max)
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return None
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@staticmethod
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def all_revisions(db, project, package):
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with db.cursor() as cur:
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cur.execute(
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"SELECT * FROM revisions where project=%s and package=%s",
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(project, package),
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)
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ret = []
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for row in cur.fetchall():
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ret.append(DBRevision(db, row))
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return ret
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def linked_rev(self):
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if self.broken:
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return None
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with self.db.cursor() as cur:
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cur.execute(
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"SELECT project,package FROM links where revision_id=%s", (self.dbid,)
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)
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row = cur.fetchone()
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if not row:
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return None
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project, package = row
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cur.execute(
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"SELECT * FROM revisions where project=%s and package=%s and commit_time <= %s ORDER BY commit_time DESC LIMIT 1",
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(project, package, self.commit_time),
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)
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revisions = [DBRevision(self.db, row) for row in cur.fetchall()]
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if revisions:
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return revisions[0]
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else:
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self.set_broken()
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return None
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def set_broken(self):
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with self.db.cursor() as cur:
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cur.execute("UPDATE revisions SET broken=TRUE where id=%s", (self.dbid,))
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def import_dir_list(self, xml):
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with self.db.cursor() as cur:
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cur.execute(
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"UPDATE revisions SET expanded_srcmd5=%s where id=%s",
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(xml.get("srcmd5"), self.dbid),
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)
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for entry in xml.findall("entry"):
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# this file creates easily 100k commits and is just useless data :(
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# unfortunately it's stored in the same meta package as the project config
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if (
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entry.get("name") == "_staging_workflow"
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and self.package == "_project"
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):
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continue
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cur.execute(
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"""INSERT INTO files (name, md5, size, mtime, revision_id)
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VALUES (%s,%s,%s,%s,%s)""",
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(
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entry.get("name"),
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entry.get("md5"),
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entry.get("size"),
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entry.get("mtime"),
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self.dbid,
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),
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)
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def previous_commit(self):
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return DBRevision.fetch_revision(
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self.db, self.project, self.package, int(self.rev) - 1
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)
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def next_commit(self):
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return DBRevision.fetch_revision(
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self.db, self.project, self.package, int(self.rev) + 1
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)
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def calculate_files_hash(self):
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m = md5()
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for file_dict in self.files_list():
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m.update(
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(
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file_dict["name"]
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+ "/"
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+ file_dict["md5"]
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+ "/"
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+ str(file_dict["size"])
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).encode("utf-8")
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)
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return m.hexdigest()
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def files_list(self):
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if self._files:
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return self._files
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with self.db.cursor() as cur:
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cur.execute("SELECT * from files where revision_id=%s", (self.dbid,))
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self._files = []
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for row in cur.fetchall():
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(_, _, name, md5, size, mtime) = row
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self._files.append(
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{"md5": md5, "size": size, "mtime": mtime, "name": name}
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)
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self._files.sort(key=lambda x: x["name"])
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return self._files
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def calc_delta(self, current_rev: Optional[DBRevision]):
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"""Calculate the list of files to download and to delete.
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Param current_rev is the revision that's currently checked out.
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If it's None, the repository is empty.
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"""
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to_download = []
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if current_rev:
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old_files = {
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e["name"]: f"{e['md5']}-{e['size']}" for e in current_rev.files_list()
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}
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else:
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old_files = dict()
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for entry in self.files_list():
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if old_files.get(entry["name"]) != f"{entry['md5']}-{entry['size']}":
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to_download.append((Path(entry["name"]), entry["size"], entry["md5"]))
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old_files.pop(entry["name"], None)
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to_delete = [Path(e) for e in old_files.keys()]
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return to_download, to_delete
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@staticmethod
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def requests_to_fetch(db):
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with db.cursor() as cur:
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cur.execute(
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"""SELECT request_number FROM revisions revs LEFT JOIN requests
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reqs ON reqs.number=revs.request_number WHERE reqs.id is null AND
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revs.request_number IS NOT NULL""",
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)
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return [row[0] for row in cur.fetchall()]
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@staticmethod
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def import_fixture_dict(db, rev_dict):
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"""Used in test cases to read a revision from fixtures into the test database"""
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with db.cursor() as cur:
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cur.execute(
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"""INSERT INTO revisions (project, package, rev, unexpanded_srcmd5, expanded_srcmd5,
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commit_time, userid, comment, broken, files_hash)
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VALUES(%s, %s, %s, %s, %s, %s, %s, %s, %s, %s) RETURNING id""",
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(
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rev_dict["project"],
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rev_dict["package"],
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rev_dict["rev"],
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rev_dict["unexpanded_srcmd5"],
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rev_dict["expanded_srcmd5"],
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rev_dict["commit_time"],
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rev_dict["userid"],
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rev_dict["comment"],
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rev_dict["broken"],
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rev_dict["files_hash"],
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),
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)
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rev_id = cur.fetchone()[0]
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for file_dict in rev_dict["files"]:
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cur.execute(
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"INSERT INTO files (md5, mtime, name, size, revision_id) VALUES(%s, %s, %s, %s, %s)",
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(
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file_dict["md5"],
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file_dict["mtime"],
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file_dict["name"],
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file_dict["size"],
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rev_id,
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),
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)
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request = rev_dict.get("request")
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if request:
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cur.execute(
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"""INSERT INTO requests (creator, number, source_project, source_package,
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source_rev, state, type) VALUES (%s, %s, %s, %s, %s, %s, %s) RETURNING id""",
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(
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request["creator"],
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request["number"],
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request.get("source_project"),
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request.get("source_package"),
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request.get("source_rev"),
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request["state"],
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request["type"],
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),
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)
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request_id = cur.fetchone()[0]
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cur.execute(
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"UPDATE revisions SET request_id=%s, request_number=%s WHERE id=%s",
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(request_id, request["number"], rev_id),
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)
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