Additional endpoint for themes API for getting file info about a file in a theme

Former-commit-id: 09f020329e

ccm-core/src/main/java/org/libreccm/api/themes/Themes.java

@@ -412,6 +412,44 @@ public class Themes implements Serializable {
         }
     }
 
+    /**
+     * Gets the {@link ThemeFileInfo} for a file from the theme.
+     *
+     * @param themeName The name of the theme.
+     * @param path      The path of the file to retrieve.
+     *
+     * @return The content of the requsted file.
+     */
+    @GET
+    @Path("/themes/{theme}/files/{path:.+}/@info")
+    @AuthorizationRequired
+    @RequiresPrivilege(ThemingPrivileges.EDIT_THEME)
+    public ThemeFileInfo getThemeFileInfo(
+        @PathParam("theme") final String themeName,
+        @PathParam("path") final String path
+    ) {
+        final ThemeProvider provider = findProvider(themeName)
+            .orElseThrow(
+                () -> new NotFoundException(
+                    String.format(
+                        "Theme \"%s\" does not exist.", themeName
+                    )
+                )
+            );
+
+        return provider
+            .getThemeFileInfo(themeName, ThemeVersion.DRAFT, path)
+            .orElseThrow(
+                () -> new NotFoundException(
+                    String.format(
+                        "File \"%s\" does not exist in theme %s.",
+                        path,
+                        themeName
+                    )
+                )
+            );
+    }
+
     /**
      * Creates or updates a file in a theme.
      *