X-Git-Url: https://git.notmuchmail.org/git?p=notmuch;a=blobdiff_plain;f=notmuch-restore.c;h=9abc64fdd89e6ae7c61e84bc3d3f7f269e72c8de;hp=18cbece6442b3abbbeef636bdbbe164d8a949b6a;hb=8881a61fe7a1956534b89cd1f79984793ff694fe;hpb=13569ad6c96c3f3a653ac51274056614647ad7ef

diff --git a/notmuch-restore.c b/notmuch-restore.c
index 18cbece6..9abc64fd 100644
--- a/notmuch-restore.c
+++ b/notmuch-restore.c
@@ -19,112 +19,308 @@
  */
 
 #include "notmuch-client.h"
+#include "hex-escape.h"
+#include "tag-util.h"
+#include "string-util.h"
+#include "zlib-extra.h"
+
+static regex_t regex;
+
+/* Non-zero return indicates an error in retrieving the message,
+ * or in applying the tags.  Missing messages are reported, but not
+ * considered errors.
+ */
+static int
+tag_message (unused (void *ctx),
+	     notmuch_database_t *notmuch,
+	     const char *message_id,
+	     tag_op_list_t *tag_ops,
+	     tag_op_flag_t flags)
+{
+    notmuch_status_t status;
+    notmuch_message_t *message = NULL;
+    int ret = 0;
+
+    status = notmuch_database_find_message (notmuch, message_id, &message);
+    if (status) {
+	fprintf (stderr, "Error applying tags to message %s: %s\n",
+		 message_id, notmuch_status_to_string (status));
+	return 1;
+    }
+    if (message == NULL) {
+	fprintf (stderr, "Warning: cannot apply tags to missing message: %s\n",
+		 message_id);
+	/* We consider this a non-fatal error. */
+	return 0;
+    }
+
+    /* In order to detect missing messages, this check/optimization is
+     * intentionally done *after* first finding the message. */
+    if ((flags & TAG_FLAG_REMOVE_ALL) || tag_op_list_size (tag_ops))
+	ret = tag_op_list_apply (message, tag_ops, flags);
+
+    notmuch_message_destroy (message);
+
+    return ret;
+}
+
+/* Sup dump output is one line per message. We match a sequence of
+ * non-space characters for the message-id, then one or more
+ * spaces, then a list of space-separated tags as a sequence of
+ * characters within literal '(' and ')'. */
+
+static int
+parse_sup_line (void *ctx, char *line,
+		char **query_str, tag_op_list_t *tag_ops)
+{
+
+    regmatch_t match[3];
+    char *file_tags;
+    int rerr;
+
+    tag_op_list_reset (tag_ops);
+
+    chomp_newline (line);
+
+    /* Silently ignore blank lines */
+    if (line[0] == '\0') {
+	return 1;
+    }
+
+    rerr = xregexec (&regex, line, 3, match, 0);
+    if (rerr == REG_NOMATCH) {
+	fprintf (stderr, "Warning: Ignoring invalid sup format line: %s\n",
+		 line);
+	return 1;
+    }
+
+    *query_str = talloc_strndup_debug (ctx, line + match[1].rm_so,
+				       match[1].rm_eo - match[1].rm_so);
+
+    file_tags = talloc_strndup_debug (ctx, line + match[2].rm_so,
+				      match[2].rm_eo - match[2].rm_so);
+
+    char *tok = file_tags;
+    size_t tok_len = 0;
+
+    tag_op_list_reset (tag_ops);
+
+    while ((tok = strtok_len (tok + tok_len, " ", &tok_len)) != NULL) {
+
+	if (*(tok + tok_len) != '\0') {
+	    *(tok + tok_len) = '\0';
+	    tok_len++;
+	}
+
+	if (tag_op_list_append (tag_ops, tok, FALSE))
+	    return -1;
+    }
+
+    return 0;
+
+}
 
 int
-notmuch_restore_command (unused (void *ctx), int argc, char *argv[])
+notmuch_restore_command (notmuch_config_t *config, int argc, char *argv[])
 {
-    notmuch_config_t *config;
     notmuch_database_t *notmuch;
-    FILE *input;
+    notmuch_bool_t accumulate = FALSE;
+    tag_op_flag_t flags = 0;
+    tag_op_list_t *tag_ops;
+
+    char *input_file_name = NULL;
+    const char *name_for_error = NULL;
+    gzFile input = NULL;
     char *line = NULL;
-    size_t line_size;
+    void *line_ctx = NULL;
     ssize_t line_len;
-    regex_t regex;
-    int rerr;
 
-    config = notmuch_config_open (ctx, NULL, NULL);
-    if (config == NULL)
-	return 1;
+    int ret = 0;
+    int opt_index;
+    int input_format = DUMP_FORMAT_AUTO;
 
-    notmuch = notmuch_database_open (notmuch_config_get_database_path (config));
-    if (notmuch == NULL)
-	return 1;
+    if (notmuch_database_open (notmuch_config_get_database_path (config),
+			       NOTMUCH_DATABASE_MODE_READ_WRITE, &notmuch))
+	return EXIT_FAILURE;
+
+    if (notmuch_config_get_maildir_synchronize_flags (config))
+	flags |= TAG_FLAG_MAILDIR_SYNC;
+
+    notmuch_opt_desc_t options[] = {
+	{ NOTMUCH_OPT_KEYWORD, &input_format, "format", 'f',
+	  (notmuch_keyword_t []){ { "auto", DUMP_FORMAT_AUTO },
+				  { "batch-tag", DUMP_FORMAT_BATCH_TAG },
+				  { "sup", DUMP_FORMAT_SUP },
+				  { 0, 0 } } },
+	{ NOTMUCH_OPT_STRING, &input_file_name, "input", 'i', 0 },
+	{ NOTMUCH_OPT_BOOLEAN,  &accumulate, "accumulate", 'a', 0 },
+	{ NOTMUCH_OPT_INHERIT, (void *) &notmuch_shared_options, NULL, 0, 0 },
+	{ 0, 0, 0, 0, 0 }
+    };
+
+    opt_index = parse_arguments (argc, argv, options, 1);
+    if (opt_index < 0) {
+	ret = EXIT_FAILURE;
+	goto DONE;
+    }
+
+    notmuch_process_shared_options (argv[0]);
+    notmuch_exit_if_unmatched_db_uuid (notmuch);
+
+    name_for_error = input_file_name ? input_file_name : "stdin";
+
+    if (! accumulate)
+	flags |= TAG_FLAG_REMOVE_ALL;
 
-    if (argc) {
-	input = fopen (argv[0], "r");
-	if (input == NULL) {
-	    fprintf (stderr, "Error opening %s for reading: %s\n",
-		     argv[0], strerror (errno));
-	    return 1;
+    errno = 0;
+    if (input_file_name)
+	input = gzopen (input_file_name, "r");
+    else {
+	int infd = dup (STDIN_FILENO);
+	if (infd < 0) {
+	    fprintf (stderr, "Error duping stdin: %s\n",
+		     strerror (errno));
+	    ret = EXIT_FAILURE;
+	    goto DONE;
 	}
-    } else {
-	printf ("No filename given. Reading dump from stdin.\n");
-	input = stdin;
+	input = gzdopen (infd, "r");
+	if (! input)
+	    close (infd);
     }
 
-    /* Dump output is one line per message. We match a sequence of
-     * non-space characters for the message-id, then one or more
-     * spaces, then a list of space-separated tags as a sequence of
-     * characters within literal '(' and ')'. */
-    xregcomp (&regex,
-	      "^([^ ]+) \\(([^)]*)\\)$",
-	      REG_EXTENDED);
-
-    while ((line_len = getline (&line, &line_size, input)) != -1) {
-	regmatch_t match[3];
-	char *message_id, *tags, *tag, *next;
-	notmuch_message_t *message;
-	notmuch_status_t status;
-
-	chomp_newline (line);
-
-	rerr = xregexec (&regex, line, 3, match, 0);
-	if (rerr == REG_NOMATCH)
-	{
-	    fprintf (stderr, "Warning: Ignoring invalid input line: %s\n",
-		     line);
-	    continue;
+    if (input == NULL) {
+	fprintf (stderr, "Error opening %s for (gzip) reading: %s\n",
+		 name_for_error, strerror (errno));
+	ret = EXIT_FAILURE;
+	goto DONE;
+    }
+
+    if (opt_index < argc) {
+	fprintf (stderr, "Unused positional parameter: %s\n", argv[opt_index]);
+	ret = EXIT_FAILURE;
+	goto DONE;
+    }
+
+    tag_ops = tag_op_list_create (config);
+    if (tag_ops == NULL) {
+	fprintf (stderr, "Out of memory.\n");
+	ret = EXIT_FAILURE;
+	goto DONE;
+    }
+
+    do {
+	util_status_t status;
+
+	status = gz_getline (line_ctx, &line, &line_len, input);
+
+	/* empty input file not considered an error */
+	if (status == UTIL_EOF) {
+	    ret = EXIT_SUCCESS;
+	    goto DONE;
 	}
 
-	message_id = xstrndup (line + match[1].rm_so,
-			       match[1].rm_eo - match[1].rm_so);
-	tags = xstrndup (line + match[2].rm_so,
-			 match[2].rm_eo - match[2].rm_so);
+	if (status) {
+	    fprintf (stderr, "Error reading (gzipped) input: %s\n",
+		     gz_error_string(status, input));
+	    ret = EXIT_FAILURE;
+	    goto DONE;
+	}
+    } while ((line_len == 0) ||
+	     (line[0] == '#') ||
+	     /* the cast is safe because we checked about for line_len < 0 */
+	     (strspn (line, " \t\n") == (unsigned)line_len));
 
-	if (strlen (tags)) {
+    char *p;
+    for (p = line; (input_format == DUMP_FORMAT_AUTO) && *p; p++) {
+	if (*p == '(')
+	    input_format = DUMP_FORMAT_SUP;
+    }
 
-	    message = notmuch_database_find_message (notmuch, message_id);
-	    if (message == NULL) {
-		fprintf (stderr, "Warning: Cannot apply tags to missing message: %s\n",
-			 message_id);
-		goto NEXT_LINE;
-	    }
+    if (input_format == DUMP_FORMAT_AUTO)
+	input_format = DUMP_FORMAT_BATCH_TAG;
+
+    if (input_format == DUMP_FORMAT_SUP)
+	if ( xregcomp (&regex,
+		       "^([^ ]+) \\(([^)]*)\\)$",
+		       REG_EXTENDED) )
+	    INTERNAL_ERROR ("compile time constant regex failed.");
 
-	    notmuch_message_freeze (message);
+    do {
+	char *query_string, *prefix, *term;
 
-	    notmuch_message_remove_all_tags (message);
+	if (line_ctx != NULL)
+	    talloc_free (line_ctx);
 
-	    next = tags;
-	    while (next) {
-		tag = strsep (&next, " ");
-		if (*tag == '\0')
+	line_ctx = talloc_new (config);
+	if (input_format == DUMP_FORMAT_SUP) {
+	    ret = parse_sup_line (line_ctx, line, &query_string, tag_ops);
+	} else {
+	    ret = parse_tag_line (line_ctx, line, TAG_FLAG_BE_GENEROUS,
+				  &query_string, tag_ops);
+
+	    if (ret == 0) {
+		ret = parse_boolean_term (line_ctx, query_string,
+					  &prefix, &term);
+		if (ret && errno == EINVAL) {
+		    fprintf (stderr, "Warning: cannot parse query: %s (skipping)\n", query_string);
+		    continue;
+		} else if (ret) {
+		    /* This is more fatal (e.g., out of memory) */
+		    fprintf (stderr, "Error parsing query: %s\n",
+			     strerror (errno));
+		    ret = 1;
+		    break;
+		} else if (strcmp ("id", prefix) != 0) {
+		    fprintf (stderr, "Warning: not an id query: %s (skipping)\n", query_string);
 		    continue;
-		status = notmuch_message_add_tag (message, tag);
-		if (status) {
-		    fprintf (stderr,
-			     "Error applying tag %s to message %s:\n",
-			     tag, message_id);
-		    fprintf (stderr, "%s\n",
-			     notmuch_status_to_string (status));
 		}
+		query_string = term;
 	    }
-
-	    notmuch_message_thaw (message);
-	    notmuch_message_destroy (message);
 	}
-      NEXT_LINE:
-	free (message_id);
-	free (tags);
+
+	if (ret > 0)
+	    continue;
+
+	if (ret < 0)
+	    break;
+
+	ret = tag_message (line_ctx, notmuch, query_string,
+			   tag_ops, flags);
+	if (ret)
+	    break;
+
+    }  while (! (ret = gz_getline (line_ctx, &line, &line_len, input)));
+    
+
+    /* EOF is normal loop termination condition, UTIL_SUCCESS is
+     * impossible here */
+    if (ret == UTIL_EOF) {
+	ret = EXIT_SUCCESS;
+    } else {
+	fprintf (stderr, "Error reading (gzipped) input: %s\n",
+		 gz_error_string (ret, input));
+	ret = EXIT_FAILURE;
     }
 
-    regfree (&regex);
+    /* currently this should not be after DONE: since we don't 
+     * know if the xregcomp was reached
+     */
 
-    if (line)
-	free (line);
+    if (input_format == DUMP_FORMAT_SUP)
+	regfree (&regex);
 
-    notmuch_database_close (notmuch);
-    if (input != stdin)
-	fclose (input);
+ DONE:
+    if (line_ctx != NULL)
+	talloc_free (line_ctx);
 
-    return 0;
+    if (notmuch)
+	notmuch_database_destroy (notmuch);
+
+    if (input && gzclose_r (input)) {
+	fprintf (stderr, "Error closing %s: %s\n",
+		 name_for_error, gzerror (input, NULL));
+	ret = EXIT_FAILURE;
+    }
+
+    return ret ? EXIT_FAILURE : EXIT_SUCCESS;
 }