Merge pull request #40 from anc95/feat-default-param

feat: add default support

README.md

@@ -22,6 +22,7 @@ inquirer.prompt({
 
 ### Options
 Takes `type`, `name`, `message`, [`filter`, `validate`, `transformer`, `default`, `pageSize`, `onlyShowDir`, `onlyShowValid`, `hideChildrenOfValid`, `root`, `hideRoot`, `multiple`] properties.
+
 The extra options that this plugin provides are:
 - `onlyShowDir`:  (Boolean) if true, will only show directory. Default: false.
 - `root`: (String) it is the root of file tree. Default: process.cwd(). 
@@ -30,6 +31,8 @@ The extra options that this plugin provides are:
 - `transformer`: (Function) a hook function to transform the display of directory or file name.
 - `multiple`: (Boolean) if true, will enable to select multiple files. Default: false.
 
+When `multiple` is enabled, `default` should be `string[]` type, otherwise it's `string` type.
+
 ### Example
 ```
 const inquirer = require('inquirer')

example/custom.js

@@ -10,6 +10,7 @@ inquirer
     {
       type: 'file-tree-selection',
       name: 'file',
+      default: '/Users/anchao/code/inquirer-file-tree-selection/example/multiple.js',
       message: 'choose a file',
       transformer: (input) => {
         const name = input.split(path.sep).pop();

example/default.js

@@ -0,0 +1,40 @@
+const inquirer = require('inquirer')
+const inquirerFileTreeSelection = require('../index')
+const path = require('path');
+const chalk = require('chalk');
+
+inquirer.registerPrompt('file-tree-selection', inquirerFileTreeSelection)
+
+inquirer
+  .prompt([
+    {
+      type: 'file-tree-selection',
+      name: 'file',
+      default: __filename,
+      message: 'choose a file',
+      transformer: (input) => {
+        const name = input.split(path.sep).pop();
+        if (name[0] == ".") {
+          return chalk.grey(name);
+        }
+        return name;
+      }
+    },
+    {
+        type: 'file-tree-selection',
+        name: 'files',  
+        default: [__dirname],
+        multiple: true,
+        message: 'choose mutiple file',
+        transformer: (input) => {
+          const name = input.split(path.sep).pop();
+          if (name[0] == ".") {
+            return chalk.grey(name);
+          }
+          return name;
+        }
+      }
+  ])
+  .then(answers => {
+    console.log(JSON.stringify(answers))
+  });

index.js

@@ -45,15 +45,16 @@ class FileTreeSelectionPrompt extends Base {
         onlyShowDir: false,
         multiple: false,
         states: false,
-        selectedList: false,
       },
-      ...this.opt
+      ...this.opt,
+      selectedList: this.opt.selectedList || this.opt.default,
     }
 
     // Make sure no default is set (so it won't be printed)
-    this.opt.default = null;
-    if (this.opt.selectedList) {
-      this.selectedList = this.opt.selectedList
+    // this.opt.default = null;
+    this.selectedList = this.opt.selectedList;
+    if (this.selectedList) {
+      !Array.isArray(this.selectedList) && (this.selectedList = [this.selectedList])
     } else {
       if (this.opt.states) {
         this.selectedList = {};
@@ -117,11 +118,12 @@ class FileTreeSelectionPrompt extends Base {
       rootNode.open = true;
       if (this.opt.hideRoot) {
         this.fileTree.children = rootNode.children;
-        this.active = this.fileTree.children[0];
+        this.active = this.active || this.fileTree.children[0];
       } else {
-        this.active = rootNode.children[0];
+        this.active = this.active || rootNode.children[0];
       }
       this.render();
+      this.prepareChildren(this.active);
     }
 
     return this;
@@ -251,7 +253,41 @@ class FileTreeSelectionPrompt extends Base {
       await addValidity(node);
     }
 
-    !node._rootNode && this.render();
+    // When it's single selection and has default value, we should expand to the default file.
+    if (this.firstRender && this.opt.default && !this.opt.multiple) {
+      const defaultPath = this.opt.default;
+      const exists = fs.existsSync(defaultPath);
+
+      if (exists) {
+        const founded = node.children.find(item => {
+          if (item.path === defaultPath) {
+            return true;
+          }
+
+          if (defaultPath.includes(`${item.path}${path.sep}`)) {
+            return true;
+          }
+        });
+
+        if (founded) {
+          if (founded.path === defaultPath) {
+            this.active = founded;
+
+            let parent = founded.parent;
+
+            while (parent && !parent._rootNode) {
+              parent.open = true;
+              parent = parent.parent;
+            }
+          }
+          else {
+            return await this.prepareChildren(founded);
+          }
+        }
+      }
+    }
+
+    !this.firstRender && this.render();
   }
 
   /**

package.json

@@ -1,6 +1,6 @@
 {
   "name": "inquirer-file-tree-selection-prompt",
-  "version": "1.0.14",
+  "version": "1.0.15",
   "repository": "https://github.com/anc95/inquirer-file-tree-selection",
   "description": "inquerer file tree selection prompt",
   "main": "index.js",