hledger/bin/README.md
2021-01-12 15:11:20 -08:00

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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Things in this directory can be unfinished or out of date.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
[add-on commands]: http://hledger.org/hledger.html#add-on-commands
[stack]: https://www.fpcomplete.com/haskell/get-started
[cabal]: https://www.haskell.org/cabal
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>