Fix rule partial path on production

Blockdown.coffee

@@ -398,8 +398,10 @@ class Blockdown
 					parsedFilePath = (path.parse file)
 					# console.log(parsedFilePath)
 
+					# On development, the cache folder is at /users/<name>/better.fyi/.private/cache/…
+					# In production, it is accessed via /app/better.fyi/.private/cache/…
+					# So choose the start index of the file path accordingly.
 					indexToStartFrom = if app.isRunningInProduction then 4 else 5
-
 					filePathKey = path.join parsedFilePath.dir.split('/')[indexToStartFrom..].join('/'), parsedFilePath.base
 
 					# console.log(filePathKey)
@@ -718,7 +720,7 @@ Better is a Safari content blocker for <a href='https://itunes.apple.com/us/app/
 		#
 
 		console.log("\t✓ Saving new blockerList.json and metadata.json files.")
-		
+
 		blockerListJSONFilePath = path.join dataDirectory, 'blockerList.json'
 		metadataFilePath = path.join dataDirectory, 'metadata.json'
 
@@ -849,7 +851,12 @@ Better is a Safari content blocker for <a href='https://itunes.apple.com/us/app/
 			# Determine where to store the partial rule (used in caching so that we
 			# can create the blocker list without having to render every rule every time).
 			parsedPathOfOriginalFile = path.parse pathOfOriginalFile
-			partialRuleFileRelativePath = parsedPathOfOriginalFile.dir.split('/')[5..].join('/')
+
+			# On development, the cache folder is at /users/<name>/better.fyi/.private/cache/…
+			# In production, it is accessed via /app/better.fyi/.private/cache/…
+			# So choose the start index of the file path accordingly.
+			indexToStartFrom = if app.isRunningInProduction then 4 else 5
+			partialRuleFileRelativePath = parsedPathOfOriginalFile.dir.split('/')[indexToStartFrom..].join('/')
 			partialRuleFilePath = path.join app.rulePartialsDirectory, partialRuleFileRelativePath
 
 			fs.ensureDirSync partialRuleFilePath