javascript - gulp-rev generating new file name for same code base -

working on codebase has used yeoman angular generator (1.4.x).

gulp-rev getting used , it's generating new file (hash) name every single time same code base, how can keep same file hash?

here's main task that's building (i suppose),

gulp.task('html', ['inject', 'partials'], function () {   var partialsinjectfile = gulp.src(path.join(conf.paths.tmp, '/partials/templatecachehtml.js'), { read: false });   var partialsinjectoptions = {     starttag: '<!-- inject:partials -->',     ignorepath: path.join(conf.paths.tmp, '/partials'),     addrootslash: false   };    var htmlfilter = $.filter('*.html', { restore: true });   var jsfilter = $.filter('**/*.js', { restore: true });   var cssfilter = $.filter('**/*.css', { restore: true });    return gulp.src(path.join(conf.paths.tmp, '/serve/*.html'))     .pipe($.inject(partialsinjectfile, partialsinjectoptions))     .pipe($.useref())     .pipe(jsfilter)     .pipe($.sourcemaps.init())     .pipe($.ngannotate())     .pipe($.uglify({ preservecomments: $.uglifysavelicense })).on('error', conf.errorhandler('uglify'))     .pipe($.rev())     .pipe($.sourcemaps.write('maps'))     .pipe(jsfilter.restore)     .pipe(cssfilter)     // .pipe($.sourcemaps.init())     .pipe($.replace('../../bower_components/bootstrap-sass/assets/fonts/bootstrap/', '../fonts/'))     .pipe($.cssnano())     .pipe($.rev())     // .pipe($.sourcemaps.write('maps'))     .pipe(cssfilter.restore)     .pipe($.revreplace())     .pipe(htmlfilter)     .pipe($.htmlmin({       removeemptyattributes: true,       removeattributequotes: true,       collapsebooleanattributes: true,       collapsewhitespace: true     }))     .pipe(htmlfilter.restore)     .pipe(gulp.dest(path.join(conf.paths.dist, '/')))     .pipe($.size({ title: path.join(conf.paths.dist, '/'), showfiles: true })); }); 

styles task

'use strict';  var path = require('path'); var gulp = require('gulp'); var conf = require('./conf');  var browsersync = require('browser-sync');  var $ = require('gulp-load-plugins')();  var wiredep = require('wiredep').stream; var _ = require('lodash');  gulp.task('styles-reload', ['styles'], function() {   return buildstyles()     .pipe(browsersync.stream()); });  gulp.task('styles', function() {   return buildstyles(); });  var buildstyles = function() {   var sassoptions = {     outputstyle: 'expanded',     precision: 10   };    var injectfiles = gulp.src([     path.join(conf.paths.src, '/app/**/*.scss'),     path.join('!' + conf.paths.src, '/app/app.scss')   ], { read: false });    var injectoptions = {     transform: function(filepath) {       filepath = filepath.replace(conf.paths.src + '/app/', '');       return '@import "' + filepath + '";';     },     starttag: '// injector',     endtag: '// endinjector',     addrootslash: false   };     return gulp.src([     path.join(conf.paths.src, '/app/app.scss')   ])     .pipe($.inject(injectfiles, injectoptions))     .pipe(wiredep(_.extend({}, conf.wiredep)))     .pipe($.sourcemaps.init())     .pipe($.sass(sassoptions)).on('error', conf.errorhandler('sass'))     .pipe($.autoprefixer()).on('error', conf.errorhandler('autoprefixer'))     .pipe($.sourcemaps.write())     .pipe(gulp.dest(path.join(conf.paths.tmp, '/serve/app/'))); }; 

scripts task

'use strict';  var path = require('path'); var gulp = require('gulp'); var conf = require('./conf');  var browsersync = require('browser-sync');  var $ = require('gulp-load-plugins')();   gulp.task('scripts-reload', function() {   return buildscripts()     .pipe(browsersync.stream()); });  gulp.task('scripts', function() {   return buildscripts(); });  function buildscripts() {   return gulp.src(path.join(conf.paths.src, '/app/**/*.js'))     .pipe($.eslint())     .pipe($.eslint.format())     .pipe($.size()) }; 

found piece on gulp-rev github page but, i'm not @ gulp, don't know change , in task here.

the stated purpose of gulp-rev this:

static asset revisioning appending content hash filenames unicorn.css → unicorn-d41d8cd98f.css

the idea able cache these static files, still deliver latest code user. if didn't want revision assets, can take out pipeline:

return gulp.src(path.join(conf.paths.tmp, '/serve/*.html')) .pipe($.inject(partialsinjectfile, partialsinjectoptions)) .pipe($.useref()) .pipe(jsfilter) .pipe($.sourcemaps.init()) .pipe($.ngannotate()) .pipe($.uglify({ preservecomments: $.uglifysavelicense })).on('error', conf.errorhandler('uglify')) .pipe($.sourcemaps.write('maps')) .pipe(jsfilter.restore) .pipe(cssfilter) // .pipe($.sourcemaps.init()) .pipe($.replace('../../bower_components/bootstrap-sass/assets/fonts/bootstrap/', '../fonts/')) .pipe($.cssnano()) // .pipe($.sourcemaps.write('maps')) .pipe(cssfilter.restore) .pipe(htmlfilter) .pipe($.htmlmin({   removeemptyattributes: true,   removeattributequotes: true,   collapsebooleanattributes: true,   collapsewhitespace: true })) .pipe(htmlfilter.restore) .pipe(gulp.dest(path.join(conf.paths.dist, '/'))) .pipe($.size({ title: path.join(conf.paths.dist, '/'), showfiles: true  }));