Add ability to downrank some folders in the results (#350)

* add downrankedFoldersFilters to settings

* use downrankedFoldersFilters to downrank some files without excluding them in obsidian, which also prevents tags from being indexed

* change hotkey for toggling excerpts to ctrl-g

* change var to let for proper scoping

* trim folders after splitting them

* only log downranking when we actually do it

* format with Prettier

* make prompt-instruction-command still ctrl g for now

src/search/omnisearch.ts

@@ -252,6 +252,40 @@ export class Omnisearch {
       })
     }
 
+    logDebug(
+      'searching with downranked folders',
+      settings.downrankedFoldersFilters
+    )
+    // downrank files that are in folders listed in the downrankedFoldersFilters
+    if (settings.downrankedFoldersFilters.length > 0) {
+      results.forEach(result => {
+        const path = result.id
+        let downrankingFolder = false
+        settings.downrankedFoldersFilters.forEach(filter => {
+          if (path.startsWith(filter)) {
+            // we don't want the filter to match the folder sources, e.g.
+            // it needs to match a whole folder name
+            if (path === filter || path.startsWith(filter + '/')) {
+              logDebug('searching with downranked folders in path: ', path)
+              downrankingFolder = true
+            }
+          }
+        })
+        if (downrankingFolder) {
+          result.score /= 10
+        }
+        const pathParts = path.split('/')
+        const pathPartsLength = pathParts.length
+        for (let i = 0; i < pathPartsLength; i++) {
+          const pathPart = pathParts[i]
+          if (settings.downrankedFoldersFilters.includes(pathPart)) {
+            result.score /= 10
+            break
+          }
+        }
+      })
+    }
+
     // Extract tags from the query
     const tags = query.getTags()