fast-export: mark strings for translation

Some error or warning messages in "builtin/fast-export.c" are marked
for translation, but many are not.

To be more consistent and provide a better experience to people using a
translated version, let's mark all the remaining error or warning
messages for translation.

While at it:

  - improve how some arguments to some error functions are indented,
  - remove "Error:" at the start of an error message,
  - downcase error and warning messages that start with an uppercase.

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

Author: chriscool

builtin/fast-export.c

@@ -65,7 +65,7 @@ static int parse_opt_sign_mode(const struct option *opt,
 		return 0;
 
 	if (parse_sign_mode(arg, val))
-		return error("Unknown %s mode: %s", opt->long_name, arg);
+		return error(_("unknown %s mode: %s"), opt->long_name, arg);
 
 	return 0;
 }
@@ -82,7 +82,7 @@ static int parse_opt_tag_of_filtered_mode(const struct option *opt,
 	else if (!strcmp(arg, "rewrite"))
 		*val = REWRITE;
 	else
-		return error("Unknown tag-of-filtered mode: %s", arg);
+		return error(_("unknown tag-of-filtered mode: %s"), arg);
 	return 0;
 }
 
@@ -107,7 +107,7 @@ static int parse_opt_reencode_mode(const struct option *opt,
 		if (!strcasecmp(arg, "abort"))
 			*val = REENCODE_ABORT;
 		else
-			return error("Unknown reencoding mode: %s", arg);
+			return error(_("unknown reencoding mode: %s"), arg);
 	}
 
 	return 0;
@@ -318,16 +318,16 @@ static void export_blob(const struct object_id *oid)
 	} else {
 		buf = odb_read_object(the_repository->objects, oid, &type, &size);
 		if (!buf)
-			die("could not read blob %s", oid_to_hex(oid));
+			die(_("could not read blob %s"), oid_to_hex(oid));
 		if (check_object_signature(the_repository, oid, buf, size,
 					   type) < 0)
-			die("oid mismatch in blob %s", oid_to_hex(oid));
+			die(_("oid mismatch in blob %s"), oid_to_hex(oid));
 		object = parse_object_buffer(the_repository, oid, type,
 					     size, buf, &eaten);
 	}
 
 	if (!object)
-		die("Could not read blob %s", oid_to_hex(oid));
+		die(_("could not read blob %s"), oid_to_hex(oid));
 
 	mark_next_object(object);
 
@@ -336,7 +336,7 @@ static void export_blob(const struct object_id *oid)
 		printf("original-oid %s\n", oid_to_hex(oid));
 	printf("data %"PRIuMAX"\n", (uintmax_t)size);
 	if (size && fwrite(buf, size, 1, stdout) != 1)
-		die_errno("could not write blob '%s'", oid_to_hex(oid));
+		die_errno(_("could not write blob '%s'"), oid_to_hex(oid));
 	printf("\n");
 
 	show_progress();
@@ -499,10 +499,10 @@ static void show_filemodify(struct diff_queue_struct *q,
 			break;
 
 		default:
-			die("Unexpected comparison status '%c' for %s, %s",
-				q->queue[i]->status,
-				ospec->path ? ospec->path : "none",
-				spec->path ? spec->path : "none");
+			die(_("unexpected comparison status '%c' for %s, %s"),
+			    q->queue[i]->status,
+			    ospec->path ? ospec->path : _("none"),
+			    spec->path ? spec->path : _("none"));
 		}
 	}
 }
@@ -699,14 +699,14 @@ static void handle_commit(struct commit *commit, struct rev_info *rev,
 
 	author = strstr(commit_buffer_cursor, "\nauthor ");
 	if (!author)
-		die("could not find author in commit %s",
+		die(_("could not find author in commit %s"),
 		    oid_to_hex(&commit->object.oid));
 	author++;
 	commit_buffer_cursor = author_end = strchrnul(author, '\n');
 
 	committer = strstr(commit_buffer_cursor, "\ncommitter ");
 	if (!committer)
-		die("could not find committer in commit %s",
+		die(_("could not find committer in commit %s"),
 		    oid_to_hex(&commit->object.oid));
 	committer++;
 	commit_buffer_cursor = committer_end = strchrnul(committer, '\n');
@@ -781,8 +781,8 @@ static void handle_commit(struct commit *commit, struct rev_info *rev,
 		case REENCODE_NO:
 			break;
 		case REENCODE_ABORT:
-			die("Encountered commit-specific encoding %.*s in commit "
-			    "%s; use --reencode=[yes|no] to handle it",
+			die(_("encountered commit-specific encoding %.*s in commit "
+			      "%s; use --reencode=[yes|no] to handle it"),
 			    (int)encoding_len, encoding,
 			    oid_to_hex(&commit->object.oid));
 		}
@@ -798,11 +798,11 @@ static void handle_commit(struct commit *commit, struct rev_info *rev,
 	if (signatures.nr) {
 		switch (signed_commit_mode) {
 		case SIGN_ABORT:
-			die("encountered signed commit %s; use "
-			    "--signed-commits=<mode> to handle it",
+			die(_("encountered signed commit %s; use "
+			      "--signed-commits=<mode> to handle it"),
 			    oid_to_hex(&commit->object.oid));
 		case SIGN_WARN_VERBATIM:
-			warning("exporting %"PRIuMAX" signature(s) for commit %s",
+			warning(_("exporting %"PRIuMAX" signature(s) for commit %s"),
 				(uintmax_t)signatures.nr, oid_to_hex(&commit->object.oid));
 			/* fallthru */
 		case SIGN_VERBATIM:
@@ -812,7 +812,7 @@ static void handle_commit(struct commit *commit, struct rev_info *rev,
 			}
 			break;
 		case SIGN_WARN_STRIP:
-			warning("stripping signature(s) from commit %s",
+			warning(_("stripping signature(s) from commit %s"),
 				oid_to_hex(&commit->object.oid));
 			/* fallthru */
 		case SIGN_STRIP:
@@ -890,15 +890,16 @@ static void handle_tag(const char *name, struct tag *tag)
 		tagged = ((struct tag *)tagged)->tagged;
 	}
 	if (tagged->type == OBJ_TREE) {
-		warning("Omitting tag %s,\nsince tags of trees (or tags of tags of trees, etc.) are not supported.",
+		warning(_("omitting tag %s,\nsince tags of trees (or tags "
+			  "of tags of trees, etc.) are not supported."),
 			oid_to_hex(&tag->object.oid));
 		return;
 	}
 
 	buf = odb_read_object(the_repository->objects, &tag->object.oid,
 			      &type, &size);
 	if (!buf)
-		die("could not read tag %s", oid_to_hex(&tag->object.oid));
+		die(_("could not read tag %s"), oid_to_hex(&tag->object.oid));
 	message = memmem(buf, size, "\n\n", 2);
 	if (message) {
 		message += 2;
@@ -936,17 +937,17 @@ static void handle_tag(const char *name, struct tag *tag)
 		if (signature)
 			switch (signed_tag_mode) {
 			case SIGN_ABORT:
-				die("encountered signed tag %s; use "
-				    "--signed-tags=<mode> to handle it",
+				die(_("encountered signed tag %s; use "
+				      "--signed-tags=<mode> to handle it"),
 				    oid_to_hex(&tag->object.oid));
 			case SIGN_WARN_VERBATIM:
-				warning("exporting signed tag %s",
+				warning(_("exporting signed tag %s"),
 					oid_to_hex(&tag->object.oid));
 				/* fallthru */
 			case SIGN_VERBATIM:
 				break;
 			case SIGN_WARN_STRIP:
-				warning("stripping signature from tag %s",
+				warning(_("stripping signature from tag %s"),
 					oid_to_hex(&tag->object.oid));
 				/* fallthru */
 			case SIGN_STRIP:
@@ -961,16 +962,16 @@ static void handle_tag(const char *name, struct tag *tag)
 	if (!tagged_mark) {
 		switch (tag_of_filtered_mode) {
 		case TAG_FILTERING_ABORT:
-			die("tag %s tags unexported object; use "
-			    "--tag-of-filtered-object=<mode> to handle it",
+			die(_("tag %s tags unexported object; use "
+			      "--tag-of-filtered-object=<mode> to handle it"),
 			    oid_to_hex(&tag->object.oid));
 		case DROP:
 			/* Ignore this tag altogether */
 			free(buf);
 			return;
 		case REWRITE:
 			if (tagged->type == OBJ_TAG && !mark_tags) {
-				die(_("Error: Cannot export nested tags unless --mark-tags is specified."));
+				die(_("cannot export nested tags unless --mark-tags is specified."));
 			} else if (tagged->type == OBJ_COMMIT) {
 				p = rewrite_commit((struct commit *)tagged);
 				if (!p) {
@@ -1026,7 +1027,7 @@ static struct commit *get_commit(struct rev_cmdline_entry *e, const char *full_n
 			tag = (struct tag *)tag->tagged;
 		}
 		if (!tag)
-			die("Tag %s points nowhere?", e->name);
+			die(_("tag %s points nowhere?"), e->name);
 		return (struct commit *)tag;
 	}
 	default:
@@ -1064,7 +1065,7 @@ static void get_tags_and_duplicates(struct rev_cmdline_info *info)
 
 		commit = get_commit(e, full_name);
 		if (!commit) {
-			warning("%s: Unexpected object of type %s, skipping.",
+			warning(_("%s: unexpected object of type %s, skipping."),
 				e->name,
 				type_name(e->item->type));
 			free(full_name);
@@ -1079,7 +1080,7 @@ static void get_tags_and_duplicates(struct rev_cmdline_info *info)
 			free(full_name);
 			continue;
 		default: /* OBJ_TAG (nested tags) is already handled */
-			warning("Tag points to object of unexpected type %s, skipping.",
+			warning(_("tag points to object of unexpected type %s, skipping."),
 				type_name(commit->object.type));
 			free(full_name);
 			continue;
@@ -1175,7 +1176,7 @@ static void export_marks(char *file)
 
 	f = fopen_for_writing(file);
 	if (!f)
-		die_errno("Unable to open marks file %s for writing.", file);
+		die_errno(_("unable to open marks file %s for writing."), file);
 
 	for (i = 0; i < idnums.size; i++) {
 		if (deco->base && deco->base->type == 1) {
@@ -1192,7 +1193,7 @@ static void export_marks(char *file)
 	e |= ferror(f);
 	e |= fclose(f);
 	if (e)
-		error("Unable to write marks file %s.", file);
+		error(_("unable to write marks file %s."), file);
 }
 
 static void import_marks(char *input_file, int check_exists)
@@ -1215,33 +1216,33 @@ static void import_marks(char *input_file, int check_exists)
 
 		line_end = strchr(line, '\n');
 		if (line[0] != ':' || !line_end)
-			die("corrupt mark line: %s", line);
+			die(_("corrupt mark line: %s"), line);
 		*line_end = '\0';
 
 		mark = strtoumax(line + 1, &mark_end, 10);
 		if (!mark || mark_end == line + 1
 			|| *mark_end != ' ' || get_oid_hex(mark_end + 1, &oid))
-			die("corrupt mark line: %s", line);
+			die(_("corrupt mark line: %s"), line);
 
 		if (last_idnum < mark)
 			last_idnum = mark;
 
 		type = odb_read_object_info(the_repository->objects, &oid, NULL);
 		if (type < 0)
-			die("object not found: %s", oid_to_hex(&oid));
+			die(_("object not found: %s"), oid_to_hex(&oid));
 
 		if (type != OBJ_COMMIT)
 			/* only commits */
 			continue;
 
 		commit = lookup_commit(the_repository, &oid);
 		if (!commit)
-			die("not a commit? can't happen: %s", oid_to_hex(&oid));
+			die(_("not a commit? can't happen: %s"), oid_to_hex(&oid));
 
 		object = &commit->object;
 
 		if (object->flags & SHOWN)
-			error("Object %s already has a mark", oid_to_hex(&oid));
+			error(_("object %s already has a mark"), oid_to_hex(&oid));
 
 		mark_object(object, mark);
 
@@ -1395,7 +1396,7 @@ int cmd_fast_export(int argc,
 	get_tags_and_duplicates(&revs.cmdline);
 
 	if (prepare_revision_walk(&revs))
-		die("revision walk setup failed");
+		die(_("revision walk setup failed"));
 
 	revs.reverse = 1;
 	revs.diffopt.format_callback = show_filemodify;