Node.js 14 compatibility

[AndrewKvalheim]

Under Node.js 14 this is affected by shelljs/shelljs#991:

$ npm run test

> git-rev-sync@2.0.0 test ~/src/git-rev-sync-js
> node tests/index

tests passed
(node:143612) Warning: Accessing non-existent property 'cat' of module exports inside circular dependency
(node:143612) Warning: Accessing non-existent property 'cd' of module exports inside circular dependency
(node:143612) Warning: Accessing non-existent property 'chmod' of module exports inside circular dependency
(node:143612) Warning: Accessing non-existent property 'cp' of module exports inside circular dependency
(node:143612) Warning: Accessing non-existent property 'dirs' of module exports inside circular dependency
(node:143612) Warning: Accessing non-existent property 'pushd' of module exports inside circular dependency
(node:143612) Warning: Accessing non-existent property 'popd' of module exports inside circular dependency
(node:143612) Warning: Accessing non-existent property 'echo' of module exports inside circular dependency
(node:143612) Warning: Accessing non-existent property 'tempdir' of module exports inside circular dependency
(node:143612) Warning: Accessing non-existent property 'pwd' of module exports inside circular dependency
(node:143612) Warning: Accessing non-existent property 'exec' of module exports inside circular dependency
(node:143612) Warning: Accessing non-existent property 'ls' of module exports inside circular dependency
(node:143612) Warning: Accessing non-existent property 'find' of module exports inside circular dependency
(node:143612) Warning: Accessing non-existent property 'grep' of module exports inside circular dependency
(node:143612) Warning: Accessing non-existent property 'head' of module exports inside circular dependency
(node:143612) Warning: Accessing non-existent property 'ln' of module exports inside circular dependency
(node:143612) Warning: Accessing non-existent property 'mkdir' of module exports inside circular dependency
(node:143612) Warning: Accessing non-existent property 'rm' of module exports inside circular dependency
(node:143612) Warning: Accessing non-existent property 'mv' of module exports inside circular dependency
(node:143612) Warning: Accessing non-existent property 'sed' of module exports inside circular dependency
(node:143612) Warning: Accessing non-existent property 'set' of module exports inside circular dependency
(node:143612) Warning: Accessing non-existent property 'sort' of module exports inside circular dependency
(node:143612) Warning: Accessing non-existent property 'tail' of module exports inside circular dependency
(node:143612) Warning: Accessing non-existent property 'test' of module exports inside circular dependency
(node:143612) Warning: Accessing non-existent property 'to' of module exports inside circular dependency
(node:143612) Warning: Accessing non-existent property 'toEnd' of module exports inside circular dependency
(node:143612) Warning: Accessing non-existent property 'touch' of module exports inside circular dependency
(node:143612) Warning: Accessing non-existent property 'uniq' of module exports inside circular dependency
(node:143612) Warning: Accessing non-existent property 'which' of module exports inside circular dependency

Proposed changes:

• Update ShellJS.
• Test against Node.js 14 in Travis CI.

[Filipoliko]

Hi, this MR would be really useful for our projects, this is one of the last dependencies causing us some trouble with our Node 14 update. It seems, that this MR breaks support for older version of Node (0.10 - 0.12), maybe its time to drop their support?

It would be great if some of the maintainers took a look at this :)

[kdipippo]

Bumping this to also add the official life dates for Node versions, for those who are curious:
https://github.com/nodejs/Release#end-of-life-releases
0.12 and earlier reached End-of-Life December 2016, if that instills confidence that those three can be pruned out.

[timarandras]

+1

[adam-lynch]

Published as @adam-lynch/git-rev-sync@3.0.0-0 for the time being (saves me installing the package via GitHub).

[kurttheviking]

published as v3.0.0; feel free to take a look and let me know if there are any open issues