Updated with new Task

.gitattributes

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+# default behavior to automatically normalize line endings
+* text=auto

.gitignore

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+node_modules/
+*.vsix
+_build/
+_packages/

GitVersion.yml

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+assembly-versioning-scheme: MajorMinorPatch
+mode: ContinuousDeployment
+continuous-delivery-fallback-tag: ''
+next-version: 0.1.0
+branches:
+  master:
+    mode: ContinuousDeployment
+    tag: ''
+  ((?!master).):
+     tag: 'Preview'
+ignore:
+  sha: []

LICENSE.txt

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+The MIT License (MIT)
+
+Copyright (c) 2016 naked Agility Limited - Martin Hinshelwood
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

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+# Variable (de|re)Hydration Tasks
+
+Visual Studio Team Services Build and Release Management extensions that help you make use of your build variables in your Release workflows.
+
+Learn more about this extension on the wiki!
+
+##Tasks included
+
+- **Variable Dehydration Task** - During your build you can save the variables to a json file stored with your other build assets
+- **Variable Rehydration Task** - During your Release you can load the saved variables and gain access to them.
+
+##Steps
+
+After installing the extension, you can add one (or more) of the tasks to a new or existing build definition or release definition
+
+Full documentation is available on [http://vsts-variable-hydration.readthedocs.io](http://vsts-variable-dehydration.readthedocs.io)

docs/index.md

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+# Variable (de|re)Hydration Tasks
+
+Visual Studio Team Services Build and Release Management extensions that help you make use of your build variables in your Release workflows.
+
+Get the [Variable (de|re)Hydration Tasks](https://marketplace.visualstudio.com/items?itemName=nkdagility.variablehydration) extensions for VSTS from the Marketplace.
+
+Learn more about this extension on the wiki!
+
+##Tasks included
+
+- **Variable Dehydration Task** - During your build you can save the variables to a json file stored with your other build assets
+- **Variable Rehydration Task** - During your Release you can load the saved variables and gain access to them.
+
+##Steps
+
+After installing the extension, you can add one (or more) of the tasks to a new or existing build definition or release definition
+
+Full documentation is available on [http://vsts-variable-hydration.readthedocs.io](http://vsts-variable-dehydration.readthedocs.io)

gulpfile.js

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+var gulp = require('gulp');
+var gutil = require('gulp-util');
+var debug = require('gulp-debug');
+var del = require('del');
+var merge = require('merge-stream');
+var path = require('path');
+var shell = require('shelljs');
+var minimist = require('minimist');
+var semver = require('semver');
+var fs = require('fs');
+
+var _buildRoot = path.join(__dirname, '_build');
+var _packagesRoot = path.join(__dirname, '_packages');
+
+gulp.task('default', ['build']);
+
+gulp.task('build', ['clean'], function () {
+    var extension = gulp.src(['README.md', 'LICENSE.txt', 'images/**/*', '!images/**/*.pdn', 'vss-extension.json'], { base: '.' })
+        .pipe(debug({title: 'extension:'}))
+        .pipe(gulp.dest(_buildRoot));
+    var task = gulp.src('task/**/*', { base: '.' })
+        .pipe(debug({title: 'task:'}))
+        .pipe(gulp.dest(_buildRoot));
+
+    return merge(extension, task);
+});
+
+gulp.task('clean', function() {
+   return del([_buildRoot]);
+});
+
+gulp.task('test', ['build'], function() {
+});
+
+gulp.task('package', ['build'], function() {
+    var args = minimist(process.argv.slice(2), {});
+    var options = {
+        version: args.version,
+        stage: args.stage,
+        public: args.public,
+        private: args.private,
+        taskId: args.taskId
+    }
+
+    if (options.version) {
+        if (options.version === 'auto') {
+            var ref = new Date(2000, 1, 1);
+            var now = new Date();
+            var major = 0
+            var minor = Math.floor((now - ref) / 86400000);
+            var patch = Math.floor(Math.floor(now.getSeconds() + (60 * (now.getMinutes() + (60 * now.getHours())))) * 0.5)
+            options.version = major + '.' + minor + '.' + patch
+        }
+
+        if (!semver.valid(options.version)) {
+            throw new gutil.PluginError('package', 'Invalid semver version: ' + options.version);
+        }
+    }
+
+    switch (options.stage) {
+        case 'dev':
+            options.taskId = '0664FF86-F509-4392-A33C-B2D9239B9AE5';
+            options.public = false;
+            options.private = false;
+            break;
+    }
+
+    updateExtensionManifest(options);
+    updateTaskManifest(options);
+
+    shell.exec('tfx extension create --root "' + _buildRoot + '" --output-path "' + _packagesRoot +'"')
+});
+
+updateExtensionManifest = function(options) {
+    var manifestPath = path.join(_buildRoot, 'vss-extension.json')
+    var manifest = JSON.parse(fs.readFileSync(manifestPath));
+
+    if (options.version) {
+        manifest.version = options.version;
+    }
+
+    if (options.stage) {
+        manifest.id = manifest.id + '-' + options.stage
+        manifest.name = manifest.name + ' (' + options.stage + ')'
+    }
+
+    manifest.public = options.public;
+
+    fs.writeFileSync(manifestPath, JSON.stringify(manifest, null, 4));
+}
+
+updateTaskManifest = function(options) {
+    var manifestPath = path.join(_buildRoot, 'task', 'task.json')
+    var manifest = JSON.parse(fs.readFileSync(manifestPath));
+
+    if (options.version) {
+        manifest.version.Major = semver.major(options.version);
+        manifest.version.Minor = semver.minor(options.version);
+        manifest.version.Patch = semver.patch(options.version);
+    }
+
+    if (options.stage) {
+        manifest.friendlyName = manifest.friendlyName + ' (' + options.stage
+
+        if (options.version) {
+            manifest.friendlyName = manifest.friendlyName + ' ' + options.version
+        }
+
+        manifest.friendlyName = manifest.friendlyName + ')'
+    }
+
+    if (options.taskId) {
+        manifest.id = options.taskId
+    }
+
+    fs.writeFileSync(manifestPath, JSON.stringify(manifest, null, 4));
+}

mkdocs.yaml

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+site_name: VSTS Variable (de|re)Hydration Tasks
+pages:
+- Home: index.md
+theme: readthedocs

package.json

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+{
+  "name": "nkdAgility.vsts-variable-hydration-task",
+  "version": "#{GitVersion.Major}#.#{GitVersion.Minor}#.#{GitVersion.Patch}#",
+  "description": "Build and release tasks for passing build veriables to a release. ",
+  "author": "Martin Hinshelwood",
+  "license": "MIT",
+  "homepage": "https://github.com/nkdAgility/vsts-variable-hydration-tasks#readme",
+  "bugs": {
+    "url": "https://github.com/nkdAgility/vsts-variable-hydration-tasks/issues"
+  },
+  "keywords": [
+    "VSTS",
+    "release",
+    "build",
+    "token",
+    "json",
+    "variable",
+    "hydration"
+  ],
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/nkdAgility/vsts-variable-hydration-tasks.git"
+  },
+  "devDependencies": {
+    "del": "^2.0.0",
+    "gulp": "^3.9.1",
+    "gulp-debug": "^2.1.2",
+    "gulp-util": "^3.0.0",
+    "merge-stream": "^1.0.0",
+    "shelljs": "^0.3.0",
+    "minimist": "1.1.1",
+    "semver": "4.3.3"
+  }
+}

tests/debug-variabledehydration-task.ps1

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+#Save-Module -Name VstsTaskSdk -Path ..\processtemplate-task\ps_modules\
+
+
+#Import-Module ..\variabledehydration-task\ps_modules\VstsTaskSdk
+
+
+Invoke-VstsTaskScript -ScriptBlock ([scriptblock]::Create('. ..\variabledehydration-task\dehydrate-veriables.ps1')) -Verbose

variabledehydration-task/dehydrate-veriables.ps1

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+[CmdletBinding()]
+param(
+    [string] $prefixes,
+    [string] $outpath
+)
+$prefixes = Get-VstsInput -Name prefixes -Require 
+$outpath = Get-VstsInput -Name outpath -Require
+
+Write-VstsTaskVerbose "prefixes: $prefixes" 
+Write-VstsTaskVerbose "outpath: $outpath" 
+
+$prefixesList = $prefixes -split ","
+
+
+foreach ($prefix in $prefixesList)
+{
+    Write-Output "Saving meta data for $prefix"
+    $path = join-path -path $outpath "meta-$($prefix.ToLower()).json"
+    Write-VstsTaskVerbose "Save Path: $path"
+    $PrefixSearch = "Env:$prefix*"
+    Write-VstsTaskVerbose "Search Prefix: $PrefixSearch"
+    Get-Childitem -Path $PrefixSearch | select Name,Value
+
+    Try
+    {
+
+        $result = Get-Childitem -Path $PrefixSearch | select Name,Value | ConvertTo-Json | Out-File $path
+        Write-Output "created $result"
+    }
+    Catch
+    {
+        $ErrorMessage = $_.Exception.Message
+        $FailedItem = $_.Exception.ItemName
+        Write-VstsTaskError "Did not get a result retunred from the upload, twas not even JSON!"
+        Write-VstsTaskError $ErrorMessage
+        Write-VstsTaskError $result
+        exit 666
+    }
+
+}