Add lint-warnings-for-guix-revision to the lint-warning module

guix-data-service/model/lint-warning.scm

@@ -2,7 +2,8 @@
   #:use-module (squee)
   #:use-module (guix-data-service model utils)
   #:export (lint-warnings-data->lint-warning-ids
-            insert-guix-revision-lint-warnings))
+            insert-guix-revision-lint-warnings
+            lint-warnings-for-guix-revision))
 
 (define (lint-warnings-data->lint-warning-ids
          conn
@@ -34,3 +35,50 @@
              guix-revision-id))
           lint-warning-ids)
      ", "))))
+
+(define* (lint-warnings-for-guix-revision conn commit-hash
+                                          #:key
+                                          package-query
+                                          linters
+                                          message-query)
+  (define query
+    (string-append "
+SELECT lint_warnings.id, lint_checkers.name, lint_checkers.description,
+       lint_checkers.network_dependent, packages.name, packages.version,
+       locations.file, locations.line, locations.column_number,
+       lint_warning_messages.message
+FROM lint_warnings
+INNER JOIN lint_checkers
+  ON lint_warnings.lint_checker_id = lint_checkers.id
+INNER JOIN packages
+  ON lint_warnings.package_id = packages.id
+INNER JOIN locations
+  ON locations.id = lint_warnings.location_id
+INNER JOIN lint_warning_message_sets
+  ON lint_warning_message_sets.id = lint_warning_message_set_id
+INNER JOIN lint_warning_messages
+  ON lint_warning_messages.locale = 'en_US.utf8'
+  AND lint_warning_messages.id = ANY (lint_warning_message_sets.message_ids)
+WHERE lint_warnings.id IN (
+  SELECT lint_warning_id
+  FROM guix_revision_lint_warnings
+  INNER JOIN guix_revisions ON guix_revision_id = guix_revisions.id
+  WHERE commit = $1
+)"
+                   (if package-query
+                       " AND to_tsvector(packages.name) @@ plainto_tsquery($2)"
+                       "")
+                   (if message-query
+                       (simple-format
+                        #f " AND to_tsvector(lint_warning_messages.message) @@ plainto_tsquery($~A)"
+                        (if package-query "3" "2"))
+                       "")
+                   " ORDER BY packages.name"))
+
+  (exec-query conn query `(,commit-hash
+                           ,@(if package-query
+                                 (list package-query)
+                                 '())
+                           ,@(if message-query
+                                 (list message-query)
+                                 '()))))