Ejemplo n.º 1
0
    def RunCommand(self):
        """Command entry point for the ls command."""
        got_nomatch_errors = False
        got_bucket_nomatch_errors = False
        listing_style = ListingStyle.SHORT
        get_bucket_info = False
        self.recursion_requested = False
        self.all_versions = False
        self.include_etag = False
        self.human_readable = False
        if self.sub_opts:
            for o, a in self.sub_opts:
                if o == '-a':
                    self.all_versions = True
                elif o == '-e':
                    self.include_etag = True
                elif o == '-b':
                    get_bucket_info = True
                elif o == '-h':
                    self.human_readable = True
                elif o == '-l':
                    listing_style = ListingStyle.LONG
                elif o == '-L':
                    listing_style = ListingStyle.LONG_LONG
                elif o == '-p':
                    self.project_id = a
                elif o == '-r' or o == '-R':
                    self.recursion_requested = True

        if not self.args:
            # default to listing all gs buckets
            self.args = ['gs://']

        total_objs = 0
        total_bytes = 0

        def MaybePrintBucketHeader(blr):
            if len(self.args) > 1:
                print '%s:' % blr.url_string.encode(UTF8)

        print_bucket_header = MaybePrintBucketHeader

        for url_str in self.args:
            storage_url = StorageUrlFromString(url_str)
            if storage_url.IsFileUrl():
                raise CommandException('Only cloud URLs are supported for %s' %
                                       self.command_name)
            bucket_fields = None
            if (listing_style == ListingStyle.SHORT
                    or listing_style == ListingStyle.LONG):
                bucket_fields = ['id']
            elif listing_style == ListingStyle.LONG_LONG:
                bucket_fields = [
                    'location', 'storageClass', 'versioning', 'acl',
                    'defaultObjectAcl', 'website', 'logging', 'cors',
                    'lifecycle'
                ]
            if storage_url.IsProvider():
                # Provider URL: use bucket wildcard to list buckets.
                for blr in self.WildcardIterator(
                        '%s://*' % storage_url.scheme).IterBuckets(
                            bucket_fields=bucket_fields):
                    self._PrintBucketInfo(blr, listing_style)
            elif storage_url.IsBucket() and get_bucket_info:
                # ls -b bucket listing request: List info about bucket(s).
                total_buckets = 0
                for blr in self.WildcardIterator(url_str).IterBuckets(
                        bucket_fields=bucket_fields):
                    if not ContainsWildcard(url_str) and not blr.root_object:
                        # Iterator does not make an HTTP call for non-wildcarded
                        # listings with fields=='id'. Ensure the bucket exists by calling
                        # GetBucket.
                        self.gsutil_api.GetBucket(blr.storage_url.bucket_name,
                                                  fields=['id'],
                                                  provider=storage_url.scheme)
                    self._PrintBucketInfo(blr, listing_style)
                    total_buckets += 1
                if not ContainsWildcard(url_str) and not total_buckets:
                    got_bucket_nomatch_errors = True
            else:
                # URL names a bucket, object, or object subdir ->
                # list matching object(s) / subdirs.
                def _PrintPrefixLong(blr):
                    print '%-33s%s' % ('', blr.url_string.encode(UTF8))

                if listing_style == ListingStyle.SHORT:
                    # ls helper by default readies us for a short listing.
                    ls_helper = LsHelper(
                        self.WildcardIterator,
                        self.logger,
                        all_versions=self.all_versions,
                        print_bucket_header_func=print_bucket_header,
                        should_recurse=self.recursion_requested)
                elif listing_style == ListingStyle.LONG:
                    bucket_listing_fields = ['name', 'updated', 'size']
                    if self.all_versions:
                        bucket_listing_fields.extend(
                            ['generation', 'metageneration'])
                    if self.include_etag:
                        bucket_listing_fields.append('etag')

                    ls_helper = LsHelper(
                        self.WildcardIterator,
                        self.logger,
                        print_object_func=self._PrintLongListing,
                        print_dir_func=_PrintPrefixLong,
                        print_bucket_header_func=print_bucket_header,
                        all_versions=self.all_versions,
                        should_recurse=self.recursion_requested,
                        fields=bucket_listing_fields)

                elif listing_style == ListingStyle.LONG_LONG:
                    # List all fields
                    bucket_listing_fields = None
                    ls_helper = LsHelper(
                        self.WildcardIterator,
                        self.logger,
                        print_object_func=PrintFullInfoAboutObject,
                        print_dir_func=_PrintPrefixLong,
                        print_bucket_header_func=print_bucket_header,
                        all_versions=self.all_versions,
                        should_recurse=self.recursion_requested,
                        fields=bucket_listing_fields)
                else:
                    raise CommandException('Unknown listing style: %s' %
                                           listing_style)

                exp_dirs, exp_objs, exp_bytes = ls_helper.ExpandUrlAndPrint(
                    storage_url)
                if storage_url.IsObject() and exp_objs == 0 and exp_dirs == 0:
                    got_nomatch_errors = True
                total_bytes += exp_bytes
                total_objs += exp_objs

        if total_objs and listing_style != ListingStyle.SHORT:
            print('TOTAL: %d objects, %d bytes (%s)' %
                  (total_objs, total_bytes,
                   MakeHumanReadable(float(total_bytes))))
        if got_nomatch_errors:
            raise CommandException('One or more URLs matched no objects.')
        if got_bucket_nomatch_errors:
            raise NotFoundException(
                'One or more bucket URLs matched no buckets.')

        return 0
Ejemplo n.º 2
0
    def RunCommand(self):
        """Command entry point for the du command."""
        self.line_ending = '\n'
        self.all_versions = False
        self.produce_total = False
        self.human_readable = False
        self.summary_only = False
        self.exclude_patterns = []
        if self.sub_opts:
            for o, a in self.sub_opts:
                if o == '-0':
                    self.line_ending = '\0'
                elif o == '-a':
                    self.all_versions = True
                elif o == '-c':
                    self.produce_total = True
                elif o == '-e':
                    self.exclude_patterns.append(a)
                elif o == '-h':
                    self.human_readable = True
                elif o == '-s':
                    self.summary_only = True
                elif o == '-X':
                    if a == '-':
                        f = sys.stdin
                    else:
                        f = open(a, 'r')
                    try:
                        for line in f:
                            line = line.strip()
                            if line:
                                self.exclude_patterns.append(line)
                    finally:
                        f.close()

        if not self.args:
            # Default to listing all gs buckets.
            self.args = ['gs://']

        total_bytes = 0
        got_nomatch_errors = False

        def _PrintObjectLong(blr):
            return self._PrintInfoAboutBucketListingRef(blr)

        def _PrintNothing(unused_blr=None):
            pass

        def _PrintDirectory(num_bytes, name):
            if not self.summary_only:
                self._PrintSummaryLine(num_bytes, name)

        for url_arg in self.args:
            top_level_storage_url = StorageUrlFromString(url_arg)
            if top_level_storage_url.IsFileUrl():
                raise CommandException('Only cloud URLs are supported for %s' %
                                       self.command_name)
            bucket_listing_fields = ['size']

            ls_helper = LsHelper(self.WildcardIterator,
                                 self.logger,
                                 print_object_func=_PrintObjectLong,
                                 print_dir_func=_PrintNothing,
                                 print_dir_header_func=_PrintNothing,
                                 print_dir_summary_func=_PrintDirectory,
                                 print_newline_func=_PrintNothing,
                                 all_versions=self.all_versions,
                                 should_recurse=True,
                                 exclude_patterns=self.exclude_patterns,
                                 fields=bucket_listing_fields)

            # ls_helper expands to objects and prefixes, so perform a top-level
            # expansion first.
            if top_level_storage_url.IsProvider():
                # Provider URL: use bucket wildcard to iterate over all buckets.
                top_level_iter = self.WildcardIterator(
                    '%s://*' % top_level_storage_url.scheme).IterBuckets(
                        bucket_fields=['id'])
            elif top_level_storage_url.IsBucket():
                top_level_iter = self.WildcardIterator(
                    '%s://%s' %
                    (top_level_storage_url.scheme,
                     top_level_storage_url.bucket_name)).IterBuckets(
                         bucket_fields=['id'])
            else:
                top_level_iter = [BucketListingObject(top_level_storage_url)]

            for blr in top_level_iter:
                storage_url = blr.storage_url
                if storage_url.IsBucket() and self.summary_only:
                    storage_url = StorageUrlFromString(
                        storage_url.CreatePrefixUrl(wildcard_suffix='**'))
                _, exp_objs, exp_bytes = ls_helper.ExpandUrlAndPrint(
                    storage_url)
                if (storage_url.IsObject() and exp_objs == 0
                        and ContainsWildcard(url_arg)
                        and not self.exclude_patterns):
                    got_nomatch_errors = True
                total_bytes += exp_bytes

                if self.summary_only:
                    self._PrintSummaryLine(exp_bytes,
                                           blr.url_string.rstrip('/'))

        if self.produce_total:
            self._PrintSummaryLine(total_bytes, 'total')

        if got_nomatch_errors:
            raise CommandException('One or more URLs matched no objects.')

        return 0