Installing mern-cli with Yarn results in mern-init(1) does not exist, try --help

[palcisto]

When installing mern-cli via Yarn, the package successfully installs
yet am unable to run any of the CLI commands.

The same issue has been found with the vue-cli package and documented in the following issues:
vuejs/vue-cli#193 and vuejs/vue-cli#205

The issue was resolved in the following respective PR: vuejs/vue-cli#206

I am accompanying this issue with a proposed PR (#22) that resolves the issue similarly to the the vue-cli solution and would like your feedback on whether this would be an appropriate solution for mern-cli.

Below is a comparison of installing the package via Yarn and NPM followed by my environment details.

Yarn install process:

___________________________________________________
~/Sites 9:38 AM
=> yarn global add mern-cli
yarn global v0.18.1
warning No license field
[1/4] 🔍  Resolving packages...
[2/4] 🚚  Fetching packages...
[3/4] 🔗  Linking dependencies...
[4/4] 📃  Building fresh packages...
success Installed [email protected] with binaries:
      - mern
      - merng
warning No license field
✨  Done in 25.01s.
___________________________________________________
~/Sites 9:38 AM
=> mern init myApp

  mern-init(1) does not exist, try --help

___________________________________________________
~/Sites 9:39 AM
=> mern list

  mern-list(1) does not exist, try --help

___________________________________________________
~/Sites 9:39 AM
=> mern search starter

  mern-search(1) does not exist, try --help

___________________________________________________
~/Sites 9:39 AM
=> mern info

  mern-info(1) does not exist, try --help

___________________________________________________
~/Sites 9:40 AM
=> mern --help

  Usage: mern [options] [command]


  Commands:

    init [name]    Initialize a MERN project.
    list           List MERN variants
    search [term]  Search for MERN variant
    info [term]    View details of a MERN variant
    help [cmd]     display help for [cmd]

  Initialize a MERN powered project

  Options:

    -h, --help     output usage information
    -V, --version  output the version number
    -v, --version  check version

NPM install attempt:

___________________________________________________
~/Sites 10:43 AM
=> npm install -g mern-cli

> [email protected] prepublish /Users/patrick/Sites/mern-cli
> npm run compile


> [email protected] compile /Users/patrick/Sites/mern-cli
> babel --presets es2015,stage-0 -d lib/ src/

src/commands/generate.js -> lib/commands/generate.js
src/commands/main-info.js -> lib/commands/main-info.js
src/commands/main-init.js -> lib/commands/main-init.js
src/commands/main-list.js -> lib/commands/main-list.js
src/commands/main-search.js -> lib/commands/main-search.js
src/commands/main.js -> lib/commands/main.js
src/tasks/generate.js -> lib/tasks/generate.js
src/tasks/getMernConfig.js -> lib/tasks/getMernConfig.js
src/tasks/readAndRenderTemplate.js -> lib/tasks/readAndRenderTemplate.js
src/tasks/renderTargetPath.js -> lib/tasks/renderTargetPath.js
src/util/ejsHelpers.js -> lib/util/ejsHelpers.js
src/util/fileExists.js -> lib/util/fileExists.js
src/util/ui.js -> lib/util/ui.js
/Users/patrick/.nvm/versions/node/v6.9.1/bin/mern-init -> /Users/patrick/.nvm/versions/node/v6.9.1/lib/node_modules/mern-cli/bin/mern-init.js
/Users/patrick/.nvm/versions/node/v6.9.1/bin/mern-list -> /Users/patrick/.nvm/versions/node/v6.9.1/lib/node_modules/mern-cli/bin/mern-list.js
/Users/patrick/.nvm/versions/node/v6.9.1/bin/mern-info -> /Users/patrick/.nvm/versions/node/v6.9.1/lib/node_modules/mern-cli/bin/mern-info.js
/Users/patrick/.nvm/versions/node/v6.9.1/bin/mern-search -> /Users/patrick/.nvm/versions/node/v6.9.1/lib/node_modules/mern-cli/bin/mern-search.js
/Users/patrick/.nvm/versions/node/v6.9.1/bin/merng -> /Users/patrick/.nvm/versions/node/v6.9.1/lib/node_modules/mern-cli/bin/merng.js
/Users/patrick/.nvm/versions/node/v6.9.1/bin/mern -> /Users/patrick/.nvm/versions/node/v6.9.1/lib/node_modules/mern-cli/bin/mern.js
/Users/patrick/.nvm/versions/node/v6.9.1/lib
└─┬ [email protected]
  ├─┬ [email protected]
  │ ├── [email protected]
  │ ├── [email protected]
  │ ├─┬ [email protected]
  │ │ └── [email protected]
  │ ├── [email protected]
  │ └── [email protected]
  ├─┬ [email protected]
  │ └── [email protected]
  ├─┬ [email protected]
  │ └── [email protected]
  ├── [email protected]
  ├── [email protected]
  ├─┬ [email protected]
  │ ├── [email protected]
  │ └─┬ [email protected]
  │   └─┬ [email protected]
  │     ├── [email protected]
  │     └── [email protected]
  ├── [email protected]
  └─┬ [email protected]
    ├─┬ [email protected]
    │ └─┬ [email protected]
    │   └─┬ [email protected]
    │     └── [email protected]  (git://github.com/timoxley/next-tick.git#6f25f8c2d25697dead7e49e978ae4c31703f7490)
    ├─┬ [email protected]
    │ └── [email protected]
    └── [email protected]

___________________________________________________
~/Sites 10:43 AM
=> mern init myApp
Initialized empty Git repository in /Users/patrick/Sites/myApp/.git/
Fetching the boilerplate...⠋
From https://github.com/Hashnode/mern-starter
Completed.....You are good to go!
___________________________________________________
~/Sites 10:44 AM
=> mern-list
MERN Variants
-------------
┌──────────────┬──────────────────────┬──────────┐
│ Name         │ Description          │ Author   │
├──────────────┼──────────────────────┼──────────┤
│ mern-starter │ Default Mern Starter │ Hashnode │
└──────────────┴──────────────────────┴──────────┘
For more info, execute "mern info <variant_name>"
___________________________________________________
~/Sites 10:45 AM
=> mern search starter
Search results for starter
-------------
┌──────────────┬──────────────────────┬──────────┐
│ Name         │ Description          │ Author   │
├──────────────┼──────────────────────┼──────────┤
│ mern-starter │ Default Mern Starter │ Hashnode │
└──────────────┴──────────────────────┴──────────┘
For more info, execute "mern info <variant_name>"
___________________________________________________
~/Sites 10:45 AM
=> mern info

  Usage: mern-info [options]

  Options:

    -h, --help  output usage information

___________________________________________________
~/Sites 10:45 AM
=> mern --help

  Usage: mern [options] [command]


  Commands:

    init [name]    Initialize a MERN project.
    list           List MERN variants
    search [term]  Search for MERN variant
    info [term]    View details of a MERN variant
    help [cmd]     display help for [cmd]

  Initialize a MERN powered project

  Options:

    -h, --help     output usage information
    -V, --version  output the version number
    -v, --version  check version

Environment Details:

Node version: v6.9.1 
Yarn version: v0.18.1
mern-cli version: v3.0
OS: macOS Sierra / 10.12.2

[houssem-yahiaoui]

I know that the fix done something, but the error is still showing, install mern-cli with :

yarn global add mern-cli 

Is not working and keep showing the same result.

[palcisto]

Ok, I look forward to this being resolve soon.