With parse(), no way to print help for subcommand

[iffy]

var p = newParser:
  command "foo":
    flag("-a")
  command "bar":
    flag("-b")
try:
  var opts = p.parse(@["foo", "--help"])
except ShortCircuit as e:
  if e.flag == "argparse_help":
    echo p.help # how do I get p.fooParser.help or know that they passed in foo?

[amaank404]

This has been really bugging me out, just asking for status on this issue please. If it is not gonna get fixed anytime soon, please let me know

[iffy]

Turns out it was easy -- thanks for letting me know it was bugging you.

[iffy]

There's now a .help field on the ShortCircuit error object so this should work:

try:
  var opts = p.parse()
except ShortCircuit as err:
  if err.flag == "argparse_help":
    echo err.help

https://github.com/iffy/nim-argparse#parse

[amaank404]

OMG! You are a legend! Thank you so much

[yaroslav-gwit]

Just wanted to say thank you. Before you implemented the change, I had to use this monkey patch 🙈:

if opts.command == "vm":
    var vmList = vmList()
else:
    echo execCmdEx(os.getAppFilename() & " vm --help")[0].strip

Essentially executing a shell sub-command, and calling --help on it.