gulp-head.js

last commit hash and tag without installing git

install

npm install basis-company/gulp-head.js

gulpfile.js

var head = require('gulp-head');

gulp.task('head', () =>
  gulp.src('.git/HEAD')
    .pipe(head())
    .pipe(gulp.dest('build'))
);

result

build/revision.txt

fc526b6c7f9ea0a8148f144e430e9f3593ba5a1b

build/version.txt

2.5.8