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-rw-r--r--diff.c44
1 files changed, 30 insertions, 14 deletions
diff --git a/diff.c b/diff.c
index 2136b6970b..fa78fc189c 100644
--- a/diff.c
+++ b/diff.c
@@ -26,6 +26,7 @@
#endif
static int diff_detect_rename_default;
+static int diff_compaction_heuristic; /* experimental */
static int diff_rename_limit_default = 400;
static int diff_suppress_blank_empty;
static int diff_use_color_default = -1;
@@ -168,6 +169,11 @@ long parse_algorithm_value(const char *value)
* never be affected by the setting of diff.renames
* the user happens to have in the configuration file.
*/
+void init_diff_ui_defaults(void)
+{
+ diff_detect_rename_default = 1;
+}
+
int git_diff_ui_config(const char *var, const char *value, void *cb)
{
if (!strcmp(var, "diff.color") || !strcmp(var, "color.diff")) {
@@ -184,6 +190,10 @@ int git_diff_ui_config(const char *var, const char *value, void *cb)
diff_detect_rename_default = git_config_rename(var, value);
return 0;
}
+ if (!strcmp(var, "diff.compactionheuristic")) {
+ diff_compaction_heuristic = git_config_bool(var, value);
+ return 0;
+ }
if (!strcmp(var, "diff.autorefreshindex")) {
diff_auto_refresh_index = git_config_bool(var, value);
return 0;
@@ -2607,12 +2617,9 @@ static void builtin_checkdiff(const char *name_a, const char *name_b,
struct diff_filespec *alloc_filespec(const char *path)
{
- int namelen = strlen(path);
- struct diff_filespec *spec = xmalloc(sizeof(*spec) + namelen + 1);
+ struct diff_filespec *spec;
- memset(spec, 0, sizeof(*spec));
- spec->path = (char *)(spec + 1);
- memcpy(spec->path, path, namelen+1);
+ FLEXPTR_ALLOC_STR(spec, path, path);
spec->count = 1;
spec->is_binary = -1;
return spec;
@@ -2707,21 +2714,21 @@ static int reuse_worktree_file(const char *name, const unsigned char *sha1, int
static int diff_populate_gitlink(struct diff_filespec *s, int size_only)
{
- int len;
- char *data = xmalloc(100), *dirty = "";
+ struct strbuf buf = STRBUF_INIT;
+ char *dirty = "";
/* Are we looking at the work tree? */
if (s->dirty_submodule)
dirty = "-dirty";
- len = snprintf(data, 100,
- "Subproject commit %s%s\n", sha1_to_hex(s->sha1), dirty);
- s->data = data;
- s->size = len;
- s->should_free = 1;
+ strbuf_addf(&buf, "Subproject commit %s%s\n", sha1_to_hex(s->sha1), dirty);
+ s->size = buf.len;
if (size_only) {
s->data = NULL;
- free(data);
+ strbuf_release(&buf);
+ } else {
+ s->data = strbuf_detach(&buf, NULL);
+ s->should_free = 1;
}
return 0;
}
@@ -3276,6 +3283,8 @@ void diff_setup(struct diff_options *options)
options->use_color = diff_use_color_default;
options->detect_rename = diff_detect_rename_default;
options->xdl_opts |= diff_algorithm;
+ if (diff_compaction_heuristic)
+ DIFF_XDL_SET(options, COMPACTION_HEURISTIC);
options->orderfile = diff_order_file_cfg;
@@ -3796,6 +3805,10 @@ int diff_opt_parse(struct diff_options *options,
DIFF_XDL_SET(options, IGNORE_WHITESPACE_AT_EOL);
else if (!strcmp(arg, "--ignore-blank-lines"))
DIFF_XDL_SET(options, IGNORE_BLANK_LINES);
+ else if (!strcmp(arg, "--compaction-heuristic"))
+ DIFF_XDL_SET(options, COMPACTION_HEURISTIC);
+ else if (!strcmp(arg, "--no-compaction-heuristic"))
+ DIFF_XDL_CLR(options, COMPACTION_HEURISTIC);
else if (!strcmp(arg, "--patience"))
options->xdl_opts = DIFF_WITH_ALG(options, PATIENCE_DIFF);
else if (!strcmp(arg, "--histogram"))
@@ -5085,7 +5098,7 @@ size_t fill_textconv(struct userdiff_driver *driver,
{
size_t size;
- if (!driver || !driver->textconv) {
+ if (!driver) {
if (!DIFF_FILE_VALID(df)) {
*outbuf = "";
return 0;
@@ -5096,6 +5109,9 @@ size_t fill_textconv(struct userdiff_driver *driver,
return df->size;
}
+ if (!driver->textconv)
+ die("BUG: fill_textconv called with non-textconv driver");
+
if (driver->textconv_cache && df->sha1_valid) {
*outbuf = notes_cache_get(driver->textconv_cache, df->sha1,
&size);