tsc chokes on switches in --example=VALUE format

[ghost]

Every now and then I pick up tsc and the following type of thing happens:

$ tsc --module=commonjs ./foo.ts
error TS5023: Unknown compiler option 'module=commonjs'.
$ # arrgh!
$ tsc --module commonjs ./foo.ts
$

[DanielRosenwasser]

I'd be okay with this if the complexity of the command line parser didn't get too crazy. @mhegazy @rbuckton @RyanCavanaugh any thoughts?

[ahejlsberg]

I'm not super crazy about this idea. One problem is that that it only works if there are no blanks before or after the =. Another is that it doesn't work well for boolean options (at least not with the suggested implementation). For example, --declaration=true would become --declaration followed by true, and we'd go look for a file named true.ts.

[ghost]

it only works if there are no blanks before or after the =

The pull request isn't really going rogue and making some spectacular design decision. It's more like the opposite. See my comment in the pull request about ls et al. If there are spaces around the "=", failure is the expected outcome.

This is really about getting tsc to accept long options in the same way that most every other command-line tool on my system does--includinggit--without surprising anybody.

Another is that it doesn't work well for boolean options

Yeah, I noticed that sometime after pushing to my branch this afternoon. It's easy enough to fix.

[ghost]

For comparison:

$ ls ./bin --format= long
ls: ambiguous argument ‘’ for ‘--format’
Valid arguments are:
  - ‘verbose’, ‘long’
  - ‘commas’
  - ‘horizontal’, ‘across’
  - ‘vertical’
  - ‘single-column’
Try 'ls --help' for more information.
$ ls ./bin --format=long
total 8
-rwxrwxr-x 1 tim tim 45 Jan 30 18:26 tsc
-rwxrwxr-x 1 tim tim 50 Jan 30 18:26 tsserver
$ 

[RyanCavanaugh]

Suggestions from ghosts are too spooky. If anyone would like this, please log a new issue.