Refresh the packages in multiple threads

lib/db_revision.py

@@ -111,13 +111,18 @@ class DBRevision:
             return DBRevision(db, row)
 
     @staticmethod
-    def latest_revision(db, project, package):
+    def max_rev(db, project, package):
         with db.cursor() as cur:
             cur.execute(
                 "SELECT MAX(rev) FROM revisions where project=%s and package=%s",
                 (project, package),
             )
-            max = cur.fetchone()[0]
+            return cur.fetchone()[0]
+        return None
+
+    @staticmethod
+    def latest_revision(db, project, package):
+        max = DBRevision.max_rev(db, project, package)
         if max:
             return DBRevision.fetch_revision(db, project, package, max)
         return None

lib/git_exporter.py

@@ -60,6 +60,7 @@ class GitExporter:
 
         gc_cnt = self.gc_interval
         if len(left_to_commit) > 0:
+            logging.info(f"Commiting into {self.git.path}")
             self.git.gc()
         for flat in left_to_commit:
             gc_cnt -= 1

lib/importer.py

@@ -1,3 +1,4 @@
+import concurrent.futures
 import logging
 import xml.etree.ElementTree as ET
 
@@ -8,26 +9,42 @@ from lib.obs_revision import OBSRevision
 from lib.user import User
 
 
+def refresh_package(importer, project, package):
+    importer.refresh_package(project, package)
+
+
+def import_request(importer, number):
+    importer.import_request(number)
+
+
+def import_rev(importer, rev):
+    importer.import_rev(rev)
+
+
 class Importer:
     def __init__(self, api_url, project, packages):
         # Import multiple Factory packages into the database
         self.packages = packages
         self.project = project
 
+        self.db = DB()
         self.obs = OBS()
         assert project == "openSUSE:Factory"
         self.obs.change_url(api_url)
         self.refreshed_packages = set()
 
-    def update_db_package(self, db, project, package):
+    def import_request(self, number):
+        self.obs.request(number).import_into_db(self.db)
+
+    def update_db_package(self, project, package):
         root = self.obs._history(project, package)
         if root is None:
             return
-        latest = DBRevision.latest_revision(db, project, package)
+        latest = DBRevision.max_rev(self.db, project, package)
         for r in root.findall("revision"):
             rev = OBSRevision(self.obs, project, package).parse(r)
-            if not latest or rev.rev > latest.rev:
-                dbrev = DBRevision.import_obs_rev(db, rev)
+            if not latest or rev.rev > latest:
+                dbrev = DBRevision.import_obs_rev(self.db, rev)
                 try:
                     root = rev.read_link()
                 except ET.ParseError:
@@ -38,15 +55,15 @@ class Importer:
                     tpkg = root.get("package") or package
                     dbrev.links_to(tprj, tpkg)
 
-    def find_linked_revs(self, db):
-        with db.cursor() as cur:
+    def find_linked_revs(self):
+        with self.db.cursor() as cur:
             cur.execute(
                 """SELECT * from revisions WHERE id in (SELECT l.revision_id FROM links l
                             LEFT JOIN linked_revs lrevs ON lrevs.revision_id=l.revision_id
                             WHERE lrevs.id IS NULL) and broken is FALSE;"""
             )
             for row in cur.fetchall():
-                rev = DBRevision(db, row)
+                rev = DBRevision(self.db, row)
                 linked_rev = rev.linked_rev()
                 if not linked_rev:
                     logging.debug(f"No link {rev}")
@@ -57,8 +74,8 @@ class Importer:
                     (rev.dbid, linked_rev.dbid),
                 )
 
-    def fetch_all_linked_packages(self, db, project, package):
-        with db.cursor() as cur:
+    def fetch_all_linked_packages(self, project, package):
+        with self.db.cursor() as cur:
             cur.execute(
                 """SELECT DISTINCT l.project, l.package from links l JOIN revisions r
                     on r.id=l.revision_id WHERE r.project=%s AND r.package=%s""",
@@ -67,26 +84,26 @@ class Importer:
             for row in cur.fetchall():
                 (lproject, lpackage) = row
                 # recurse
-                self.refresh_package(db, lproject, lpackage)
+                self.refresh_package(lproject, lpackage)
 
-    def find_fake_revisions(self, db):
-        with db.cursor() as cur:
+    def find_fake_revisions(self):
+        with self.db.cursor() as cur:
             cur.execute(
                 "SELECT * from revisions WHERE id in (SELECT linked_id from linked_revs WHERE considered=FALSE)"
             )
             for row in cur.fetchall():
-                self._find_fake_revision(db, DBRevision(db, row))
+                self._find_fake_revision(DBRevision(self.db, row))
 
-    def _find_fake_revision(self, db, rev):
+    def _find_fake_revision(self, rev):
         prev = rev.previous_commit()
         if not prev:
-            with db.cursor() as cur:
+            with self.db.cursor() as cur:
                 cur.execute(
                     "UPDATE linked_revs SET considered=TRUE where linked_id=%s",
                     (rev.dbid,),
                 )
             return
-        with db.cursor() as cur:
+        with self.db.cursor() as cur:
             cur.execute(
                 """SELECT * FROM revisions WHERE id IN
                             (SELECT revision_id from linked_revs WHERE linked_id=%s) 
@@ -95,7 +112,7 @@ class Importer:
             )
             last_linked = None
             for linked in cur.fetchall():
-                linked = DBRevision(db, linked)
+                linked = DBRevision(self.db, linked)
                 nextrev = linked.next_commit()
                 if nextrev and nextrev.commit_time < rev.commit_time:
                     continue
@@ -107,7 +124,7 @@ class Importer:
         if not last_linked:
             return
 
-        with db.cursor() as cur:
+        with self.db.cursor() as cur:
             linked = last_linked
             cur.execute(
                 "SELECT 1 FROM fake_revs where revision_id=%s AND linked_id=%s",
@@ -144,77 +161,96 @@ class Importer:
                 (rev.dbid, linked.dbid),
             )
 
-    def revisions_without_files(self, db):
-        with db.cursor() as cur:
+    def revisions_without_files(self):
+        with self.db.cursor() as cur:
             cur.execute(
                 "SELECT * FROM revisions WHERE broken=FALSE AND expanded_srcmd5 IS NULL"
             )
-            return [DBRevision(db, row) for row in cur.fetchall()]
+            return [DBRevision(self.db, row) for row in cur.fetchall()]
 
-    def fill_file_lists(self, db):
-        self.find_linked_revs(db)
-
-        self.find_fake_revisions(db)
-        for rev in self.revisions_without_files(db):
-            with db.cursor() as cur:
-                cur.execute(
-                    """SELECT unexpanded_srcmd5 from revisions WHERE
-                            id=(SELECT linked_id FROM linked_revs WHERE revision_id=%s)""",
-                    (rev.dbid,),
-                )
-                linked_rev = cur.fetchone()
-            if linked_rev:
-                linked_rev = linked_rev[0]
-            list = self.obs.list(
-                rev.project, rev.package, rev.unexpanded_srcmd5, linked_rev
+    def import_rev(self, rev):
+        with self.db.cursor() as cur:
+            cur.execute(
+                """SELECT unexpanded_srcmd5 from revisions WHERE
+                        id=(SELECT linked_id FROM linked_revs WHERE revision_id=%s)""",
+                (rev.dbid,),
             )
-            if list:
-                rev.import_dir_list(list)
-                md5 = rev.calculate_files_hash()
-                with db.cursor() as cur:
-                    cur.execute(
-                        "UPDATE revisions SET files_hash=%s WHERE id=%s",
-                        (md5, rev.dbid),
-                    )
-            else:
-                rev.set_broken()
+            linked_rev = cur.fetchone()
+        if linked_rev:
+            linked_rev = linked_rev[0]
+        list = self.obs.list(
+            rev.project, rev.package, rev.unexpanded_srcmd5, linked_rev
+        )
+        if list:
+            rev.import_dir_list(list)
+            md5 = rev.calculate_files_hash()
+            with self.db.cursor() as cur:
+                cur.execute(
+                    "UPDATE revisions SET files_hash=%s WHERE id=%s",
+                    (md5, rev.dbid),
+                )
+        else:
+            rev.set_broken()
 
-    def refresh_package(self, db, project, package):
+    def fill_file_lists(self):
+        self.find_linked_revs()
+
+        self.find_fake_revisions()
+        with concurrent.futures.ThreadPoolExecutor() as executor:
+            fs = [
+                executor.submit(import_rev, self, rev)
+                for rev in self.revisions_without_files()
+            ]
+        concurrent.futures.wait(fs)
+
+    def refresh_package(self, project, package):
         key = f"{project}/{package}"
         if key in self.refreshed_packages:
             # refreshing once is good enough
             return
+        logging.info(f"Refresh {project}/{package}")
         self.refreshed_packages.add(key)
-        self.update_db_package(db, project, package)
-        self.fetch_all_linked_packages(db, project, package)
+        self.update_db_package(project, package)
+        self.fetch_all_linked_packages(project, package)
 
     def import_into_db(self):
-        db = DB()
 
-        for package in self.packages:
-            self.refresh_package(db, self.project, package)
-        db.conn.commit()
+        with concurrent.futures.ThreadPoolExecutor() as executor:
+            fs = [
+                executor.submit(refresh_package, self, self.project, package)
+                for package in self.packages
+            ]
+            concurrent.futures.wait(fs)
 
-        for number in DBRevision.requests_to_fetch(db):
-            self.obs.request(number).import_into_db(db)
-        db.conn.commit()
+            self.db.conn.commit()
 
-        with db.cursor() as cur:
-            cur.execute(
-                """SELECT DISTINCT source_project,source_package FROM requests 
-                           WHERE id IN (SELECT request_id FROM revisions WHERE project=%s and package = ANY(%s));""",
-                (self.project, self.packages),
-            )
-            for project, package in cur.fetchall():
-                self.refresh_package(db, project, package)
-        db.conn.commit()
+            fs = [
+                executor.submit(import_request, self, number)
+                for number in DBRevision.requests_to_fetch(self.db)
+            ]
+            concurrent.futures.wait(fs)
 
-        missing_users = User.missing_users(db)
+            self.db.conn.commit()
+
+            with self.db.cursor() as cur:
+                cur.execute(
+                    """SELECT DISTINCT source_project,source_package FROM requests 
+                            WHERE id IN (SELECT request_id FROM revisions WHERE project=%s and package = ANY(%s));""",
+                    (self.project, self.packages),
+                )
+                fs = [
+                    executor.submit(refresh_package, self, project, package)
+                    for project, package in cur.fetchall()
+                ]
+                concurrent.futures.wait(fs)
+        self.db.conn.commit()
+
+        missing_users = User.missing_users(self.db)
         for userid in missing_users:
             missing_user = self.obs.user(userid)
             if missing_user:
-                missing_user.import_into_db(db)
-        db.conn.commit()
+                missing_user.import_into_db(self.db)
+        self.db.conn.commit()
 
-        self.fill_file_lists(db)
-        db.conn.commit()
+        self.fill_file_lists()
+        self.db.conn.commit()