Node - Passing variables into the GULP task

[danblack2]

My current code uses the command line argument delimiter to set a property in a gulp file

gulp --AssemblyInfoVersion "1.2.3"

I pick up the set variable inside the gulp.js with 

var version = gutil.env.AssemblyInfoVersion

Inside the Gulp build task, I tried to use the field Environment Variables to set AssemblyInfoVersion, but that does not seem to work. 

AssemblyInfoVersion="1.0.${bamboo.buildnumber}"

How do I access the Environment Variables via the build task?, or how do I pass the variables?

[rsperafico · Accepted solution]

Hello Dann,

If you look at the build log generated, you can find the command Bamboo is executing. In the log entry below, you can notice the Environment Variables under Advanced options is not appended to the command executed:

command	28-Dec-2016 14:31:12	Beginning to execute external process for build 'Project - Plan - Default Job #8 (PROJ-PLAN-JOB1-8)'\n ... running command line: \n/usr/local/bin/node node_modules/gulp/bin/gulp.js scripts\n

Instead, you need to pass the arguments directly into the Task:

command	28-Dec-2016 14:32:45	Beginning to execute external process for build 'Project - Plan - Default Job #9 (PROJ-PLAN-JOB1-9)'\n ... running command line: \n/usr/local/bin/node node_modules/gulp/bin/gulp.js scripts --env production --buildNumber 9\n

// npm install gulp yargs gulp-if gulp-uglify gulp-minify-css gulp-rename
var gulp   = require('gulp');
var args   = require('yargs').argv;
var gulpif = require('gulp-if');
var uglify = require('gulp-uglify');
var minifyCss = require("gulp-minify-css");
var rename = require('gulp-rename');
var isProduction = args.env === 'production';
var buildNumber = (args.buildNumber === "undefined") ? 0 : args.buildNumber;

// task
gulp.task('scripts', function () {
    gulp.src('./css/sample.css') // path to your file
    .pipe(gulpif(isProduction, minifyCss({keepBreaks: true})))
    .pipe(rename({
            suffix: '.' + buildNumber + '.min'
        }))
    .pipe(gulp.dest('./css/minified'));
});

body {
  background-color: white
}
div {
  width: auto;
}

image2016-12-28 14:35:0.png

scripts --env production --buildNumber ${bamboo.buildNumber}

 Please, notice the Bamboo variable must be ${bamboo.buildNumber} and not ${bamboo.buildnumber} as you mentioned.

As a result, you will have:

body{background-color:#fff}
div{width:auto}

—

Kind regards,

Rafael