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[CS2] Add #! support for executable scripts on Linux. (#3946)

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* Add #! support for executable scripts on Linux.

Pass arguments to executable script unchanged if using "#!/usr/bin/env
coffee". (Previously, "./test.coffee -abck" would be turned into "-a -b -c -k",
for example.)

Fixes #1752.

* refactor option parsing

clean up parsing code and in the process fix oustanding bug where coffeescript
modified arguments meant for an executable script

* address comments

* intermediate save

* add note saying where OptionParser is used in coffee command

* add some more work

* fix flatten functions

* refactor tests

* make argument processing less confusing

* add basic test

* remove unused file

* compilation now hangs

* remove unnecessary changes

* add tests!!!

* add/fix some tests

* clarify a test

* fix helpers

* fix opt parsing

* fix infinite loop

* make rule building easier to read

* add tests for flag overlap

* revamp argument parsing again and add more thorough testing

* add tests, comment, clean unused method

* address review comments

* add test for direct invocation of shebang scripts

* move shebang parsing test to separate file and check for browser

* remove TODO

* example backwards compatible warnings

* add correct tests for warning 1

* add tests for warnings

* commit output js libs and update docs

* respond to review comments

also add tests for help text

* respond to review comments

* fix example output

* Rewrite argument parsing documentation to be more concise; add it to sidebar and body; add new output

* Don’t mention deprecated syntax; clean up variable names
This commit is contained in:
Danny McClanahan
2017-07-19 18:25:06 -05:00
committed by Geoffrey Booth
parent d287a798cc
commit 4e57ca6833
22 changed files with 672 additions and 213 deletions
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15
src/coffeescript.coffee
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@@ -73,6 +73,8 @@ exports.compile = compile = withPrettyErrors (code, options) ->
generateSourceMap = options.sourceMap or options.inlineMap or not options.filename?
filename = options.filename or '<anonymous>'
checkShebangLine filename, code
sources[filename] = code
map = new SourceMap if generateSourceMap
@@ -295,3 +297,16 @@ Error.prepareStackTrace = (err, stack) ->
" at #{formatSourcePosition frame, getSourceMapping}"
"#{err.toString()}\n#{frames.join '\n'}\n"
checkShebangLine = (file, input) ->
firstLine = input.split(/$/m)[0]
rest = firstLine?.match(/^#!\s*([^\s]+\s*)(.*)/)
args = rest?[2]?.split(/\s/).filter (s) -> s isnt ''
if args?.length > 1
console.error '''
The script to be run begins with a shebang line with more than one
argument. This script will fail on platforms such as Linux which only
allow a single argument.
'''
console.error "The shebang line was: '#{firstLine}' in file '#{file}'"
console.error "The arguments were: #{JSON.stringify args}"