gulpfile.js

const gulp = require('gulp');
const rename = require('gulp-rename');
const cp = require('child_process');

const helidonServerExtDir = '../helidon-build-tools/lsp4helidon/ls-extension'
const helidonServerExt = 'ls-extension';

const helidonJDTExtDir = '../helidon-build-tools/lsp4helidon/jdt-extension';
const helidonExtension = 'jdt-extension-core';

gulp.task('buildLsServerExt', (done) => {
  cp.execSync('mvn clean verify -DskipTests', { cwd: helidonServerExtDir , stdio: 'inherit' });
  gulp.src(helidonServerExtDir + '/target/' + helidonServerExt + '-!(*sources).jar')
    .pipe(rename(helidonServerExt + '.jar'))
    .pipe(gulp.dest('./server'));
  gulp.src(helidonServerExtDir + '/target/lib/*.jar')
    .pipe(gulp.dest('./server'));
  done();
});

gulp.task('buildJdtExtension', (done) => {
  cp.execSync('mvn -pl "' + helidonExtension + '" clean verify -DskipTests', { cwd: helidonJDTExtDir, stdio: 'inherit' });
  gulp.src(helidonJDTExtDir + '/' + helidonExtension + '/target/' + helidonExtension + '-!(*sources).jar')
    .pipe(rename(helidonExtension + '.jar'))
    .pipe(gulp.dest('./jars'));
  done();
});

gulp.task('build', gulp.series('buildLsServerExt', 'buildJdtExtension'));