gulp-sourcemap file extension issue - css

Question

Trying to create a gulp file that picks up our LESS files and generates the appropriate .css, .min.css, and .css.map files. Close, but sourcemaps is writing the map to a file with the extension .css.min.css.
/// <vs BeforeBuild='less' SolutionOpened='less' />
/// <binding BeforeBuild='less' ProjectOpened='less' />
var gulp = require('gulp');
var less = require('gulp-less');
var sourcemaps = require('gulp-sourcemaps');
var autoprefixer = require('autoprefixer');
var minifycss = require('gulp-minify-css');
var pleeease = require('gulp-pleeease');
var rename = require('gulp-rename');
var mqpacker = require('css-mqpacker');
var csswring = require('csswring');
var postcss = require('gulp-postcss');
var processors = [
autoprefixer({ browsers: ["IE >= 9, firefox > 10, last 2 Chrome versions, last 2 safari versions, last 2 ios versions"] }),
mqpacker
];
gulp.task('less', function () {
gulp.src('./itims/Content/*.less', { base: './itims/content'})
.pipe(sourcemaps.init())
.pipe(less())
.pipe(postcss(processors))
.pipe(rename({
extname: '.css'
}))
.pipe(gulp.dest('./itims/content'))
.pipe(minifycss())
.pipe(sourcemaps.write('./'))
.pipe(rename({
suffix: '.min',
extname: '.css'
}))
.pipe(gulp.dest('./itims/content'));
});

Answer 1

As you might guess, your problem comes from the rename that is after the sourcemaps.write. You want to rename only *.css files, hence the following solution should do the trick :
Add gulp-if to your dependencies if not already present
var if = require('gulp-if');
Rewrite your task as follows :
gulp.src('./itims/content/*.less', {base: './itims/content'})
.pipe(sourcemaps.init())
.pipe(less())
.pipe(postcss(processors))
.pipe(gulp.dest('./itims/content'))
.pipe(minifycss())
.pipe(sourcemaps.write('./'))
.pipe(if('*.css', rename({extname: '.min.css'}))
.pipe(gulp.dest('./itims/content'));
Notes:
I removed your first rename as the less plugin already handles the renaming of *.less to *.css
Beware of the case in the path names. You mixed './itims/Content' and './itims/content'.