hledger/bin/README.md

Miscellaneous hledger add-ons, bash scripts, example make rules, etc. Things in this directory can be unfinished or out of date.

hledger scripts

The hledger-*.hs scripts here are example/experimental hledger add-on commands. See https://hledger.org/scripting.html for more about this.

They are mostly implemented as stack runghc scripts. See the comments in hledger-check-fancyassertions.hs for more about how to run or compile them. Short version: run bin/compile.sh to compile all scripts, and add this directory to your $PATH so they show up in hledger's command list.

Scripts overview, simplest first:

• hledger-check-tagfiles.hs - check that all tag values containing / exist as file paths
• hledger-check-tagfiles.cabal.hs - the above as a cabal script
• hledger-swap-dates.hs - print transactions with their date and date2 fields swapped
• hledger-print-location.hs - add file path/line number tags to the print command
• hledger-balance-as-budget.hs - use one balance report as budget goals for another one
• hledger-combine-balances.hs - show balance reports for two different periods side by side
• hledger-smooth.hs - incomplete attempt at automatically splitting infrequent/irregular transactions
• hledger-check-fancyassertions.hs - check more complex account balance assertions

How to:

Install all scripts as add-on commands

$ git clone https://github.com/simonmichael/hledger
$ hledger/bin/compile.sh
$ export PATH=$PATH:$PWD/hledger/bin

$ hledger                           # scripts now appear in commands list
$ hledger-print-location --help     # run a script directly
$ hledger print-location -- --help  # or run it via hledger. -- is needed before script options

Create a new script

The example scripts follow a template that implements hledger's standard command line options and help, so it's a good idea to use one as your starting point. The hledger- naming is not required, but it causes scripts to show up in the hledger commands list. On unix, your new script should be marked executable. This should do it:

$ cd hledger
$ cp bin/hledger-swap-dates.hs bin/hledger-foo.hs  # and edit, at least the command name and help
$ stack install string-qq     # ensure any extra script deps are installed
$ bin/hledger-cmd.hs --help
foo [OPTIONS]
  My new foo command.
  ...
$ stack ghc bin/hledger-cmd.hs
$ hledger foo -- --help
foo [OPTIONS]
  My new foo command.
  ...

Run ghcid on a script

$ stack install string-qq     # ensure any extra script deps are installed
$ stack exec -- ghcid bin/hledger-foo.hs 
...
Ok, one module loaded.
All good (1 module, at 10:50:48)

Run ghci on a script

$ stack install string-qq     # ensure any extra script deps are installed
$ stack ghci bin/hledger-foo.hs 
...
Ok, one module loaded.
...
ghci>