Embed 'alias' functionality into 'vendor\bin' and Load User Lua files

[daxgames]

Fix #1862 - 1.3.6: Error on start path with trailing slash in quotes.

Enable/Disable Cmder features by detected comspec

• Add vendor\lib\lib_base function cmder_shell that sets 3 new env vars"

  • CMDER_SHELL = [cmd|tcc|tccle]
  • CMDER_CLINK = [1|0] Default = 1 or On
  • CMDER_ALIASES = [1|0] Default = 1 or On

• vendor\init.bat uses the new variables to determine whether to configure/load certain features at startup.

Move bin\alias.bat to vendor\bin\alias.cmd

• Move %CMDER_ROOT%\config\user-aliases.bat to %CMDER_ROOT%\config\user_aliases.cmd related to Fix #1806 #1675 #1870, Cmder and TCC incompatibility (init.bat startup error)? #1806, and %user-aliases% should be %user_aliases% #1675
• Move bin\alias.bat to vendor\bin\alias.cmd to embed its functionality into cmder so %CMDER_ROOT%\bin becomes a completely user controlled folder like %CMDER_ROOT%\config
• Adds %CMDER_ROOT%\bin;%CMDER_ROOT%\vendor\bin to the path.
• Starting cmder with the old %CMDER_ROOT%\bin\alias.bat and %CMDER_ROOT%\vendor\bin\alias.cmd displays the following message:

Cmder's 'alias' command has been moved into '%CMDER_ROOT%\vendor\bin\alias.cmd'
to get rid of this message either:

Delete the file '%CMDER_ROOT%\bin\alias.bat'

or

If you have customized it and want to continue using it instead of the included version
  * Rename '%CMDER_ROOT%\bin\alias.bat' to '%CMDER_ROOT%\bin\alias.cmd'.
  * Search for 'user-aliases' and replace it with 'user_aliases'. 
)

Loads user *.lua files after %cmder_root%/vendor/clink.lua

• Loads *.lua from the following sources in order:

  • %cmder_root%/vendor/clink.lua
    • %cmder_root%/vendor/clink-completions/*.lua
    • %cmder_root%/config/*.lua
    • [cmder_user_config_root]/*.lua If specified at launch using -c [cmder_user_config_root]

• Allows user more control over clink settings. %cmder_root%/config/prompt.lua example:

function my_prompt_filter()
    cwd = clink.get_cwd()
    prompt = "\x1b[1;32;40m{cwd}{git}{hg}\x1b[1;30;40m{lamb} \x1b[0m"
    new_value = string.gsub(prompt, "{cwd}", cwd)
    clink.prompt.value = string.gsub(new_value, "{lamb}", "λ")
end

clink.prompt.register_filter(my_prompt_filter, 1)

Produces a prompt like:

C:\Users\dtgam\cmderdev(user_lua -> origin)λ

instead of:

C:\Users\dtgam\cmderdev (user_lua -> origin)
λ

• Completes dicussion in How to store configuration #1695
• Allows user editing of the prompt for cmd sessions solves or enables a solution for How to edit prompt for {cmd::CMDER}} ??? #1425, display current directory without full path #1400, It seems that cmder can't customize the prompt #1328,
• Allows single line prompt Command Promp not a same line #1673

[Stanzilla]

Very nice, especially the prompt stuff, that was requested pretty often, should probably be on the wiki somewhere as well after this has been merged. Have not tested it yet but the code looks fine

[daxgames]

I actually wrote the lua stuff months ago. I've just been having fun this weekend working on stuff that's not work.

[daxgames]

I also figured out how to fix the clink prompt defaulting ot origin as a remote when its a local only repo.

Think I'm gonna working the git prompt colors thing next. This was merged into clink-completions

[DRSDavidSoft]

What's this for?

[daxgames]

DOH! Should be removed

[DRSDavidSoft]

Nice work on fixing #1862, and thanks for completing #1695's discussion!

[Stanzilla]

@daxgames how done are you with this PR?

[daxgames]

Yes