Make root path an init option

Author: doesdev

README.md

@@ -17,6 +17,10 @@ set options to use in analysis (this step is optional)
     - type: Number
     - default: `null`
     - description: Limit number of files to output analysis of, sorted by DESC size
+  - **root** - *optional*
+    - type: String
+    - default: `process.cwd()`
+    - description: Application directory, used to display file paths relatively
 
 ### formatted(bundle)
 returns Promise which resolves with well formatted analysis string (for CLI printing)

index-es6.js

@@ -4,6 +4,8 @@
 const buf = ' '
 const tab = '  '
 const borderX = `${Array(30).join('-')}\n`
+let proc = process
+let root = proc && proc.cwd ? proc.cwd() : null
 let limit
 
 // Helpers
@@ -23,6 +25,7 @@ export {init, analyze, formatted}
 function init (opts) {
   opts = opts || {}
   limit = opts.limit
+  root = opts.root || root
 }
 
 function formatted (bndl) { return analyze(bndl, true) }
@@ -31,9 +34,9 @@ function analyze (bundle, format) {
   let deps = {}
   return new Promise((resolve, reject) => {
     let modules = bundle.modules.map((m, i) => {
-      let id = m.id.replace(__dirname, '')
+      let id = m.id.replace(root, '')
       m.dependencies.forEach((d) => {
-        d = d.replace(__dirname, '')
+        d = d.replace(root, '')
         deps[d] = deps[d] || []
         deps[d].push(id)
       })
@@ -50,7 +53,7 @@ function analyze (bundle, format) {
       formatted += `size:${buf}${formatBytes(m.size)}\n`
       formatted += `dependents:${buf}${m.dependents.length}\n`
       m.dependents.forEach((d) => {
-        formatted += `${tab}-${buf}${d.replace(__dirname, '')}\n`
+        formatted += `${tab}-${buf}${d.replace(root, '')}\n`
       })
       formatted += `${borderX}`
     })