We rely completely on zlib to do the right thing in detecting gzipped input. Since our dump format is chosen to be 7 bit ascii, this should be fine. --- notmuch-restore.c | 37 +++++++++++++++++++++---------------- test/T240-dump-restore.sh | 14 ++++++++++++++ 2 files changed, 35 insertions(+), 16 deletions(-)
diff --git a/notmuch-restore.c b/notmuch-restore.c index c54d513..86bce20 100644 --- a/notmuch-restore.c +++ b/notmuch-restore.c @@ -22,6 +22,7 @@ #include "hex-escape.h" #include "tag-util.h" #include "string-util.h" +#include "zlib-extra.h" static regex_t regex; @@ -128,7 +129,7 @@ notmuch_restore_command (notmuch_config_t *config, int argc, char *argv[]) tag_op_list_t *tag_ops; char *input_file_name = NULL; - FILE *input = stdin; + gzFile input; char *line = NULL; void *line_ctx = NULL; size_t line_size; @@ -163,13 +164,15 @@ notmuch_restore_command (notmuch_config_t *config, int argc, char *argv[]) if (! accumulate) flags |= TAG_FLAG_REMOVE_ALL; - if (input_file_name) { - input = fopen (input_file_name, "r"); - if (input == NULL) { - fprintf (stderr, "Error opening %s for reading: %s\n", - input_file_name, strerror (errno)); - return EXIT_FAILURE; - } + if (input_file_name) + input = gzopen (input_file_name, "r"); + else + input = gzdopen (fileno (stdin), "r"); + + if (input == NULL) { + fprintf (stderr, "Error opening %s for (gzip) reading: %s\n", + input_file_name ? input_file_name : "stdin", strerror (errno)); + return EXIT_FAILURE; } if (opt_index < argc) { @@ -184,12 +187,17 @@ notmuch_restore_command (notmuch_config_t *config, int argc, char *argv[]) } do { - line_len = getline (&line, &line_size, input); + util_status_t status; + + status = gz_getline (line_ctx, &line, &line_size, &line_len, input); /* empty input file not considered an error */ - if (line_len < 0) + if (status == UTIL_EOF) return EXIT_SUCCESS; + if (status) + return EXIT_FAILURE; + } while ((line_len == 0) || (line[0] == '#') || /* the cast is safe because we checked about for line_len < 0 */ @@ -254,7 +262,7 @@ notmuch_restore_command (notmuch_config_t *config, int argc, char *argv[]) if (ret) break; - } while ((line_len = getline (&line, &line_size, input)) != -1); + } while (gz_getline (line_ctx, &line, &line_size, &line_len, input) == UTIL_SUCCESS); if (line_ctx != NULL) talloc_free (line_ctx); @@ -262,13 +270,10 @@ notmuch_restore_command (notmuch_config_t *config, int argc, char *argv[]) if (input_format == DUMP_FORMAT_SUP) regfree (®ex); - if (line) - free (line); - notmuch_database_destroy (notmuch); - if (input != stdin) - fclose (input); + if (input_file_name != NULL) + gzclose_r (input); return ret ? EXIT_FAILURE : EXIT_SUCCESS; } diff --git a/test/T240-dump-restore.sh b/test/T240-dump-restore.sh index d79aca8..50d4d48 100755 --- a/test/T240-dump-restore.sh +++ b/test/T240-dump-restore.sh @@ -80,6 +80,20 @@ notmuch dump --gzip --output=dump-gzip-outfile.gz gunzip dump-gzip-outfile.gz test_expect_equal_file dump.expected dump-gzip-outfile +test_begin_subtest "restoring gzipped stdin" +notmuch dump --gzip --output=backup.gz +notmuch tag +new_tag '*' +notmuch restore < backup.gz +notmuch dump --output=dump.actual +test_expect_equal_file dump.expected dump.actual + +test_begin_subtest "restoring gzipped file" +notmuch dump --gzip --output=backup.gz +notmuch tag +new_tag '*' +notmuch restore --input=backup.gz +notmuch dump --output=dump.actual +test_expect_equal_file dump.expected dump.actual + # Note, we assume all messages from cworth have a message-id # containing cworth.org -- 1.9.0