mmap_limit: introduce GIT_MMAP_LIMIT to allow testing expected mmap size

diff --git a/line-log.c b/line-log.c
index 717638b333b680da7a3a5acefcb73db9d956a00f..1008e722584c882ac86b936307ace701b9225aaf 100644 (file)
--- a/line-log.c
+++ b/line-log.c
@@ -766,27 +766,6 @@ void line_log_init(struct rev_info *rev, const char *prefix, struct string_list
        }
 }
 
-static void load_tree_desc(struct tree_desc *desc, void **tree,
-                          const unsigned char *sha1)
-{
-       unsigned long size;
-       *tree = read_object_with_reference(sha1, tree_type, &size, NULL);
-       if (!*tree)
-               die("Unable to read tree (%s)", sha1_to_hex(sha1));
-       init_tree_desc(desc, *tree, size);
-}
-
-static int count_parents(struct commit *commit)
-{
-       struct commit_list *parents = commit->parents;
-       int count = 0;
-       while (parents) {
-               count++;
-               parents = parents->next;
-       }
-       return count;
-}
-
 static void move_diff_queue(struct diff_queue_struct *dst,
                            struct diff_queue_struct *src)
 {
@@ -842,18 +821,11 @@ static void queue_diffs(struct line_log_data *range,
                        struct diff_queue_struct *queue,
                        struct commit *commit, struct commit *parent)
 {
-       void *tree1 = NULL, *tree2 = NULL;
-       struct tree_desc desc1, desc2;
-
        assert(commit);
-       load_tree_desc(&desc2, &tree2, commit->tree->object.sha1);
-       if (parent)
-               load_tree_desc(&desc1, &tree1, parent->tree->object.sha1);
-       else
-               init_tree_desc(&desc1, "", 0);
 
        DIFF_QUEUE_CLEAR(&diff_queued_diff);
-       diff_tree(&desc1, &desc2, "", opt);
+       diff_tree_sha1(parent ? parent->tree->object.sha1 : NULL,
+                       commit->tree->object.sha1, "", opt);
        if (opt->detect_rename) {
                filter_diffs_for_paths(range, 1);
                if (diff_might_be_rename())
@@ -861,11 +833,6 @@ static void queue_diffs(struct line_log_data *range,
                filter_diffs_for_paths(range, 0);
        }
        move_diff_queue(queue, &diff_queued_diff);
-
-       if (tree1)
-               free(tree1);
-       if (tree2)
-               free(tree2);
 }
 
 static char *get_nth_line(long line, unsigned long *ends, void *data)
@@ -1172,7 +1139,7 @@ static int process_ranges_merge_commit(struct rev_info *rev, struct commit *comm
        struct commit **parents;
        struct commit_list *p;
        int i;
-       int nparents = count_parents(commit);
+       int nparents = commit_list_count(commit->parents);
 
        diffqueues = xmalloc(nparents * sizeof(*diffqueues));
        cand = xmalloc(nparents * sizeof(*cand));
@@ -1196,9 +1163,7 @@ static int process_ranges_merge_commit(struct rev_info *rev, struct commit *comm
                         */
                        add_line_range(rev, parents[i], cand[i]);
                        clear_commit_line_range(rev, commit);
-                       commit->parents = xmalloc(sizeof(struct commit_list));
-                       commit->parents->item = parents[i];
-                       commit->parents->next = NULL;
+                       commit_list_append(parents[i], &commit->parents);
                        free(parents);
                        free(cand);
                        free_diffqueues(nparents, diffqueues);