commit-graph: improve & i18n error messages

Change the error emitted when a commit-graph file is corrupt so that
we actually mention the commit-graph, e.g. change errors like:

    error: improper chunk offset 0000000000385e0c

To:

    error: commit-graph improper chunk offset 0000000000385e0c

As discussed in the commits leading up to this one the commit-graph
machinery is now used by common commands like "status". If the graph
was corrupt we'd often emit some error that gave no indication what
was wrong. Now some of them are still cryptic, but they'll at least
mention "commit-graph" to give the user a hint as to where to look.

While I'm at it mark some of the strings that hadn't been marked for
translation. It's clear from the commit history and the code that this
was merely forgotten at the time, and wasn't intentional.p5

Signed-off-by: Ævar Arnfjörð Bjarmason <[email protected]>
Signed-off-by: Junio C Hamano <[email protected]>

Author: avar

commit-graph.c

@@ -167,21 +167,21 @@ struct commit_graph *parse_commit_graph(void *graph_map, int fd,
 
 	graph_signature = get_be32(data);
 	if (graph_signature != GRAPH_SIGNATURE) {
-		error(_("graph signature %X does not match signature %X"),
+		error(_("commit-graph signature %X does not match signature %X"),
 		      graph_signature, GRAPH_SIGNATURE);
 		return NULL;
 	}
 
 	graph_version = *(unsigned char*)(data + 4);
 	if (graph_version != GRAPH_VERSION) {
-		error(_("graph version %X does not match version %X"),
+		error(_("commit-graph version %X does not match version %X"),
 		      graph_version, GRAPH_VERSION);
 		return NULL;
 	}
 
 	hash_version = *(unsigned char*)(data + 5);
 	if (hash_version != oid_version()) {
-		error(_("hash version %X does not match version %X"),
+		error(_("commit-graph hash version %X does not match version %X"),
 		      hash_version, oid_version());
 		return NULL;
 	}
@@ -204,7 +204,7 @@ struct commit_graph *parse_commit_graph(void *graph_map, int fd,
 
 		if (data + graph_size - chunk_lookup <
 		    GRAPH_CHUNKLOOKUP_WIDTH) {
-			error(_("chunk lookup table entry missing; graph file may be incomplete"));
+			error(_("commit-graph chunk lookup table entry missing; file may be incomplete"));
 			free(graph);
 			return NULL;
 		}
@@ -215,7 +215,7 @@ struct commit_graph *parse_commit_graph(void *graph_map, int fd,
 		chunk_lookup += GRAPH_CHUNKLOOKUP_WIDTH;
 
 		if (chunk_offset > graph_size - the_hash_algo->rawsz) {
-			error(_("improper chunk offset %08x%08x"), (uint32_t)(chunk_offset >> 32),
+			error(_("commit-graph improper chunk offset %08x%08x"), (uint32_t)(chunk_offset >> 32),
 			      (uint32_t)chunk_offset);
 			free(graph);
 			return NULL;
@@ -252,7 +252,7 @@ struct commit_graph *parse_commit_graph(void *graph_map, int fd,
 		}
 
 		if (chunk_repeated) {
-			error(_("chunk id %08x appears multiple times"), chunk_id);
+			error(_("commit-graph chunk id %08x appears multiple times"), chunk_id);
 			free(graph);
 			return NULL;
 		}
@@ -1162,7 +1162,7 @@ int verify_commit_graph(struct repository *r, struct commit_graph *g)
 		hashcpy(cur_oid.hash, g->chunk_oid_lookup + g->hash_len * i);
 
 		if (i && oidcmp(&prev_oid, &cur_oid) >= 0)
-			graph_report("commit-graph has incorrect OID order: %s then %s",
+			graph_report(_("commit-graph has incorrect OID order: %s then %s"),
 				     oid_to_hex(&prev_oid),
 				     oid_to_hex(&cur_oid));
 
@@ -1172,22 +1172,22 @@ int verify_commit_graph(struct repository *r, struct commit_graph *g)
 			uint32_t fanout_value = get_be32(g->chunk_oid_fanout + cur_fanout_pos);
 
 			if (i != fanout_value)
-				graph_report("commit-graph has incorrect fanout value: fanout[%d] = %u != %u",
+				graph_report(_("commit-graph has incorrect fanout value: fanout[%d] = %u != %u"),
 					     cur_fanout_pos, fanout_value, i);
 			cur_fanout_pos++;
 		}
 
 		graph_commit = lookup_commit(r, &cur_oid);
 		if (!parse_commit_in_graph_one(r, g, graph_commit))
-			graph_report("failed to parse %s from commit-graph",
+			graph_report(_("failed to parse commit %s from commit-graph"),
 				     oid_to_hex(&cur_oid));
 	}
 
 	while (cur_fanout_pos < 256) {
 		uint32_t fanout_value = get_be32(g->chunk_oid_fanout + cur_fanout_pos);
 
 		if (g->num_commits != fanout_value)
-			graph_report("commit-graph has incorrect fanout value: fanout[%d] = %u != %u",
+			graph_report(_("commit-graph has incorrect fanout value: fanout[%d] = %u != %u"),
 				     cur_fanout_pos, fanout_value, i);
 
 		cur_fanout_pos++;
@@ -1209,14 +1209,14 @@ int verify_commit_graph(struct repository *r, struct commit_graph *g)
 		graph_commit = lookup_commit(r, &cur_oid);
 		odb_commit = (struct commit *)create_object(r, cur_oid.hash, alloc_commit_node(r));
 		if (parse_commit_internal(odb_commit, 0, 0)) {
-			graph_report("failed to parse %s from object database",
+			graph_report(_("failed to parse commit %s from object database for commit-graph"),
 				     oid_to_hex(&cur_oid));
 			continue;
 		}
 
 		if (!oideq(&get_commit_tree_in_graph_one(r, g, graph_commit)->object.oid,
 			   get_commit_tree_oid(odb_commit)))
-			graph_report("root tree OID for commit %s in commit-graph is %s != %s",
+			graph_report(_("root tree OID for commit %s in commit-graph is %s != %s"),
 				     oid_to_hex(&cur_oid),
 				     oid_to_hex(get_commit_tree_oid(graph_commit)),
 				     oid_to_hex(get_commit_tree_oid(odb_commit)));
@@ -1226,13 +1226,13 @@ int verify_commit_graph(struct repository *r, struct commit_graph *g)
 
 		while (graph_parents) {
 			if (odb_parents == NULL) {
-				graph_report("commit-graph parent list for commit %s is too long",
+				graph_report(_("commit-graph parent list for commit %s is too long"),
 					     oid_to_hex(&cur_oid));
 				break;
 			}
 
 			if (!oideq(&graph_parents->item->object.oid, &odb_parents->item->object.oid))
-				graph_report("commit-graph parent for %s is %s != %s",
+				graph_report(_("commit-graph parent for %s is %s != %s"),
 					     oid_to_hex(&cur_oid),
 					     oid_to_hex(&graph_parents->item->object.oid),
 					     oid_to_hex(&odb_parents->item->object.oid));
@@ -1245,16 +1245,16 @@ int verify_commit_graph(struct repository *r, struct commit_graph *g)
 		}
 
 		if (odb_parents != NULL)
-			graph_report("commit-graph parent list for commit %s terminates early",
+			graph_report(_("commit-graph parent list for commit %s terminates early"),
 				     oid_to_hex(&cur_oid));
 
 		if (!graph_commit->generation) {
 			if (generation_zero == GENERATION_NUMBER_EXISTS)
-				graph_report("commit-graph has generation number zero for commit %s, but non-zero elsewhere",
+				graph_report(_("commit-graph has generation number zero for commit %s, but non-zero elsewhere"),
 					     oid_to_hex(&cur_oid));
 			generation_zero = GENERATION_ZERO_EXISTS;
 		} else if (generation_zero == GENERATION_ZERO_EXISTS)
-			graph_report("commit-graph has non-zero generation number for commit %s, but zero elsewhere",
+			graph_report(_("commit-graph has non-zero generation number for commit %s, but zero elsewhere"),
 				     oid_to_hex(&cur_oid));
 
 		if (generation_zero == GENERATION_ZERO_EXISTS)
@@ -1269,13 +1269,13 @@ int verify_commit_graph(struct repository *r, struct commit_graph *g)
 			max_generation--;
 
 		if (graph_commit->generation != max_generation + 1)
-			graph_report("commit-graph generation for commit %s is %u != %u",
+			graph_report(_("commit-graph generation for commit %s is %u != %u"),
 				     oid_to_hex(&cur_oid),
 				     graph_commit->generation,
 				     max_generation + 1);
 
 		if (graph_commit->date != odb_commit->date)
-			graph_report("commit date for commit %s in commit-graph is %"PRItime" != %"PRItime,
+			graph_report(_("commit date for commit %s in commit-graph is %"PRItime" != %"PRItime),
 				     oid_to_hex(&cur_oid),
 				     graph_commit->date,
 				     odb_commit->date);