Running hasktags for plenty of .hs source files for getting CTAGS File (plain Windows)

Question

I want to produce a ETAGS file with hasktags, for that I can use it within Emacs with M-. (Find Tag).

I am using Emacs running on Windows. Since I have no MSYS/Cygwin installed, i I cannot do

find -name \*\*hs | xargs hasktags        

How may I generate hasktags ETAGS files for a plenty of .hs source files?

Best regards

Answer 1

In cmd.exe,

for /f "tokens=*" %i in ('dir /b /s *.hs') do hasktags "%i"

Change %i to %%i in a batch script (.bat/.cmd).

In PowerShell,

Get-ChildItem -Include '*.hs' -Recurse | Foreach-Object {hasktags $_}

But of course, you could have just written a simple Haskell program to do this (or used GHCi), starting from Real World Haskell - I/O case study: a library for searching the filesystem or System.FilePath.Find, and adding in system to call hasktags.