bin: hledger-check-tag-files2, a version using cabal's v2-run command

bin/hledger-check-tag-files2.hs

@@ -0,0 +1,35 @@
+#!/usr/bin/env cabal
+{- cabal:
+build-depends: base, directory, hledger-lib, hledger, text
+-}
+{-
+hledger-check-tag-files script (cabal version, requires cabal-install 3.0.0.0+)
+Read the default journal and give an error if any tag values
+containing '/' do not exist as file paths.
+Usage:
+
+$ hledger-check-tag-files.hs    # compiles if needed
+
+or:
+
+$ hledger check-tag-files       # compiles if there's no compiled version
+-}
+
+import Control.Monad
+import qualified Data.Text as T
+import Hledger.Cli
+import System.Directory
+import System.Exit
+
+main = withJournalDo defcliopts $ \j -> do
+  let filetags = [ (t,v)
+                 | (t',v') <- concatMap transactionAllTags $ jtxns j
+                 , let t = T.unpack t'
+                 , let v = T.unpack v'
+                 , '/' `elem` v
+                 ]
+  forM_ filetags $ \(t,f) -> do
+    exists <- doesFileExist f
+    when (not exists) $ do
+      putStrLn $ "file not found in tag: " ++ t ++ ": " ++ f
+      exitFailure