[ALOY-1652] CLI: Improve handling of missing directories and files in alloy new

GitHub Issue	n/a
Type	Improvement
Priority	Medium
Status	Closed
Resolution	Fixed
Resolution Date	2019-06-19T15:22:49.000+0000
Affected Version/s	n/a
Fix Version/s	CLI Release 7.1.0, Alloy 1.14.0
Components	Tooling
Labels	n/a
Reporter	Ewan Harris
Assignee	Samuel Haig
Created	2019-03-14T17:47:17.000+0000
Updated	2019-06-19T15:22:50.000+0000

Description

Currently if an expected directory or file doesn't exist the alloy new command doesn't handle this very well and will just throw an error directly from node. We should handle these errors properly and log errors informing a user what file is missing. For example (this is just one example, there are probably more) 1. Create a titanium project using ti create or appc new --classic 2. cd into that dir 3. Call alloy new . ~/Documents

fs.js:119
    throw err;
    ^

Error: ENOENT: no such file or directory, lstat '/Users/eharris/Documents/app'
    at Object.lstatSync (fs.js:861:3)
    at /Users/eharris/Documents/git/alloy/node_modules/graceful-fs/polyfills.js:297:22
    at getStats (/Users/eharris/Documents/git/alloy/node_modules/fs-extra/lib/copy-sync/copy-sync.js:46:14)
    at startCopy (/Users/eharris/Documents/git/alloy/node_modules/fs-extra/lib/copy-sync/copy-sync.js:41:10)
    at Object.copySync (/Users/eharris/Documents/git/alloy/node_modules/fs-extra/lib/copy-sync/copy-sync.js:36:10)
    at module.exports (/Users/eharris/Documents/git/alloy/Alloy/commands/new/index.js:113:5)
    at Object.<anonymous> (/Users/eharris/Documents/git/alloy/Alloy/alloy.js:112:46)
    at Module._compile (internal/modules/cjs/loader.js:799:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:810:10)
    at Module.load (internal/modules/cjs/loader.js:666:32)
    at tryModuleLoad (internal/modules/cjs/loader.js:606:12)
    at Function.Module._load (internal/modules/cjs/loader.js:598:3)
    at Module.require (internal/modules/cjs/loader.js:705:19)
    at require (internal/modules/cjs/helpers.js:14:16)
    at Object.<anonymous> (/Users/eharris/Documents/git/alloy/bin/alloy:3:1)
    at Module._compile (internal/modules/cjs/loader.js:799:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:810:10)
    at Module.load (internal/modules/cjs/loader.js:666:32)
    at tryModuleLoad (internal/modules/cjs/loader.js:606:12)
    at Function.Module._load (internal/modules/cjs/loader.js:598:3)
    at Function.Module.runMain (internal/modules/cjs/loader.js:862:12)
    at internal/main/run_main_module.js:21:11

That error should be handled correctly and we should log an error informing the user what is missing. We might wish to have a canned message on all messages saying something to the effect of "your template must have x, y and x". It would also be good to clear up the app directory created so that a user doesn't have to do this manually

Comments

Samir Mohammed 2019-06-19 *Closing ticket*, Fix verified in CLI Version 7.1.0-master.21 Able to see better handling of missing directories and files in alloy new. Tested using the the test steps in the description and able to see the following error:

   [ERROR] Project creation failed. 
   [ERROR] Project template "/Users/Samir/Documents" not found at "/usr/local/lib/node_modules/alloy/templates/Users/Samir/Documents"

*Test Environment*

   SDK: 8.0.2.GA
   Operating System
     Name                        = Mac OS X
     Version                     = 10.14.4
     Architecture                = 64bit
     CPUs                      = 8
     Memory                      = 16.0GB
   Node.js
     Node.js Version             = 10.13.0
     npm Version                 = 6.4.1
   Appcelerator CLI
     Installer                   = 4.2.14-3
     Core Package                = 7.1.0-master.21
   Titanium CLI
     CLI Version                 = 5.2.1
     node-appc Version           = 0.2.49

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