Track providers in the official repositories

Maintain a list of virtual provisions of packages from the official
binary package repositories. The list can be updated using the aurblup
script, e.g. via a cronjob.

This allows for adding proper links to package dependencies: If an AUR
package depends on a package from the official repositories (or on a
name provided by a package from the official repositories), add a link
to the corresponding archweb package details page. If an AUR package
depends on another AUR package (or on a name provided by another AUR
package), add a link to the corresponding aurweb package details page.
Otherwise, just display the name and do not add a link at all.

Fixes FS#46549.

Signed-off-by: Lukas Fleischer <lfleischer@archlinux.org>

1 files changed, 13 insertions, 0 deletions

diff --git a/scripts/aurblup.py b/scripts/aurblup.py
index d6d0c3c..5397528 100755
--- a/scripts/aurblup.py
+++ b/scripts/aurblup.py
@@ -18,6 +18,7 @@ sync_dbs = config.get('aurblup', 'sync-dbs').split(' ')
 servers = config.get('aurblup', 'servers').split(' ')
 
 blacklist = set()
+providers = set()
 
 h = pyalpm.Handle("/", db_path)
 for sync_db in sync_dbs:
@@ -30,6 +31,8 @@ for sync_db in sync_dbs:
     for pkg in repo.pkgcache:
         blacklist.add(pkg.name)
         [blacklist.add(x) for x in pkg.replaces]
+        providers.add((pkg.name, pkg.name))
+        [providers.add((pkg.name, x)) for x in pkg.provides]
 
 db = mysql.connector.connect(host=aur_db_host, user=aur_db_user,
                              passwd=aur_db_pass, db=aur_db_name,
@@ -44,5 +47,15 @@ for pkg in blacklist.difference(oldblacklist):
 for pkg in oldblacklist.difference(blacklist):
     cur.execute("DELETE FROM PackageBlacklist WHERE Name = %s", [pkg])
 
+cur.execute("SELECT Name, Provides FROM OfficialProviders")
+oldproviders = set(cur.fetchall())
+
+for pkg, provides in providers.difference(oldproviders):
+    cur.execute("INSERT INTO OfficialProviders (Name, Provides) "
+                "VALUES (%s, %s)", [pkg, provides])
+for pkg, provides in oldproviders.difference(providers):
+    cur.execute("DELETE FROM OfficialProviders "
+                "WHERE Name = %s AND Provides = %s", [pkg, provides])
+
 db.commit()
 db.close()