fetch.js

const core = require('@actions/core');
const github = require('@actions/github');
const execSync = require('child_process').execSync;

try {
  var paths = new Array();
  var keyString = 'cache-openwrt';
  var restoreKeys = new Array();
  const prefix = core.getInput('prefix');
  if ( prefix != '' ){
    process.chdir(prefix);
  }

  const toolchain = core.getInput('toolchain');
  var skiptoolchain = core.getInput('skip');
  if ( toolchain == 'true' ){
    stdout = execSync('git log --pretty=tformat:"%h" -n1 tools toolchain').toString().trim();
    restoreKeys.unshift(keyString);
    keyString = keyString+'-'+stdout;
    paths.push('staging_dir/host*');
    paths.push('staging_dir/tool*');
    paths.push('build_dir/host*');
    paths.push('build_dir/tool*');
  }else{
    skiptoolchain = false;
  }

  const ccache = core.getInput('ccache');
  if ( ccache == 'true' ){
    stdout = execSync('date +%s').toString().trim();
    restoreKeys.unshift(keyString);
    keyString = keyString+'-'+stdout;
    paths.push('.ccache');
  }

  const cache = require('@actions/cache');
  const clean = core.getInput('clean');
  if ( clean == 'true' ) return;
  console.log(keyString, restoreKeys);
  const cacheKey = cache.restoreCache(paths, keyString, restoreKeys)
  .then(res =>{
    if ( typeof res !== 'undefined' && res ){
      console.log(res,' cache fetched!');
      core.setOutput("hit", '1');
      if ( skiptoolchain == 'true' ){
        console.log('skiped');
        //execSync('sed -i \'s/ $(tool.*\\/stamp-compile)//;\' Makefile');
        execSync('bash -c \'find build_dir\/{host*,toolchain-*} -name .built\\* -exec touch {} \\;; touch staging_dir\/{host*,toolchain-*}\/stamp\/.*\'');
      }
    }
  })

} catch (error) {
  core.setFailed(error.message);
}