Only generate fields in Sources for requested checksums

We make use of the fact that STRING_AGG ignores NULL values
when joining the values, so we do not get empty lines in there.

diff --git a/dak/generate_packages_sources2.py b/dak/generate_packages_sources2.py
index ed12e9f14a0fa2eefc968e4597c4b71b62ba3960..e44d9ceeca424c2148904c6e660916d03046260d 100755 (executable)
--- a/dak/generate_packages_sources2.py
+++ b/dak/generate_packages_sources2.py
@@ -56,9 +56,12 @@ SELECT
      STRING_AGG(
        CASE
          WHEN key = 'Source' THEN E'Package\: '
-         WHEN key = 'Files' THEN E'Files\:\n ' || f.md5sum || ' ' || f.size || ' ' || SUBSTRING(f.filename FROM E'/([^/]*)\\Z')
-         WHEN key = 'Checksums-Sha1' THEN E'Checksums-Sha1\:\n ' || f.sha1sum || ' ' || f.size || ' ' || SUBSTRING(f.filename FROM E'/([^/]*)\\Z')
-         WHEN key = 'Checksums-Sha256' THEN E'Checksums-Sha256\:\n ' || f.sha256sum || ' ' || f.size || ' ' || SUBSTRING(f.filename FROM E'/([^/]*)\\Z')
+         WHEN key = 'Files' AND sui.checksums && array['md5sum'] THEN E'Files\:\n ' || f.md5sum || ' ' || f.size || ' ' || SUBSTRING(f.filename FROM E'/([^/]*)\\Z')
+         WHEN key = 'Files' THEN NULL
+         WHEN key = 'Checksums-Sha1' AND sui.checksums && array['sha1'] THEN E'Checksums-Sha1\:\n ' || f.sha1sum || ' ' || f.size || ' ' || SUBSTRING(f.filename FROM E'/([^/]*)\\Z')
+         WHEN key = 'Checksums-Sha1' THEN NULL
+         WHEN key = 'Checksums-Sha256' AND sui.checksums && array['sha256'] THEN E'Checksums-Sha256\:\n ' || f.sha256sum || ' ' || f.size || ' ' || SUBSTRING(f.filename FROM E'/([^/]*)\\Z')
+         WHEN key = 'Checksums-Sha256' THEN NULL
          ELSE key || E'\: '
        END || value, E'\n' ORDER BY mk.ordering, mk.key)
    FROM
@@ -93,6 +96,7 @@ LEFT JOIN override o ON o.package = s.source
                      AND o.type = :dsc_type
 LEFT JOIN section sec ON o.section = sec.id
 LEFT JOIN priority pri ON o.priority = pri.id
+LEFT JOIN suite sui on sui.id = :suite
 
 ORDER BY
 s.source, s.version