async validateThemeImage()

in src/parsers/manifestjson.js [1053:1108]
50 lines of code
9 McCabe index (conditional complexity)

  async validateThemeImage(imagePath, manifestPropName) {
    const _path = normalizePath(imagePath);
    const ext = getNormalizedExtension(imagePath);

    const fileExists = this.validateFileExistsInPackage(
      _path,
      `theme.images.${manifestPropName}`,
      messages.manifestThemeImageMissing
    );

    // No need to validate the image format if the file doesn't exist
    // on disk.
    if (!fileExists) {
      return;
    }

    if (!IMAGE_FILE_EXTENSIONS.includes(ext) || ext === 'webp') {
      this.collector.addError(
        messages.manifestThemeImageWrongExtension({ path: _path })
      );
      this.isValid = false;
      return;
    }

    try {
      const info = await getImageMetadata(this.io, _path);
      if (
        !STATIC_THEME_IMAGE_MIMES.includes(info.mime) ||
        info.mime === 'image/webp'
      ) {
        this.collector.addError(
          messages.manifestThemeImageWrongMime({
            path: _path,
            mime: info.mime,
          })
        );
        this.isValid = false;
      } else if (FILE_EXTENSIONS_TO_MIME[ext] !== info.mime) {
        this.collector.addWarning(
          messages.manifestThemeImageMimeMismatch({
            path: _path,
            mime: info.mime,
          })
        );
      }
    } catch (err) {
      log.debug(
        `Unexpected error raised while validating theme image "${_path}"`,
        err.message
      );
      this.collector.addError(
        messages.manifestThemeImageCorrupted({ path: _path })
      );
      this.isValid = false;
    }
  }