export async function zeroCoverageDisplay()

in frontend/src/zero_coverage_report.js [130:198]

• 39 lines of code
• 7 McCabe index (conditional complexity)

export async function zeroCoverageDisplay(data, dir) {
  hide("output");
  hide("history");
  message(
    "loading",
    "Loading zero coverage report for " + (dir || "mozilla-central"),
  );

  while (dir.endsWith("/")) {
    dir = dir.substring(0, dir.length - 1);
  }
  dir += "/";
  if (dir === "/") {
    dir = "";
  }

  let files = data.files.filter((file) => file.name.startsWith(dir));
  // TODO: Do this in the backend directly!
  files.forEach((file) => {
    file.path = file.name;
  });
  files = await filterThirdParty(files);
  files = filterLanguages(files);
  files = filterHeaders(files);
  files = filterCompletelyUncovered(files);
  files = filterLastPushDate(files);

  const map = new Map();

  for (const file of files) {
    let rest = file.path.substring(dir.lastIndexOf("/") + 1);

    if (rest.includes("/")) {
      rest = rest.substring(0, rest.indexOf("/"));
      if (map.has(rest)) {
        cumStats(map.get(rest), file);
      } else {
        map.set(rest, getBaseStats(file, 1));
      }
    } else {
      if (map.has(rest)) {
        console.warn(rest + " is already in map.");
      }
      map.set(rest, getBaseStats(file, 0));
    }
  }

  const revision = data.hg_revision;
  const context = {
    current_dir: dir,
    entries: sortEntries(Array.from(map.entries())),
    entry_url() {
      const path = dir + this.dir;
      if (this.stats.children !== 0) {
        return buildRoute({
          view: "zero",
          path,
        });
      }
      // Fully reset the url when moving back to file view
      return `#view=file&revision=${revision}&path=${path}`;
    },
    navbar: buildNavbar(dir),
    total: files.length,
  };

  hide("message");
  render("zerocoverage", context, "output");
}