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-rw-r--r--diff.c83
1 files changed, 53 insertions, 30 deletions
diff --git a/diff.c b/diff.c
index af9b952886..d76bb937c1 100644
--- a/diff.c
+++ b/diff.c
@@ -21,6 +21,7 @@
#include "string-list.h"
#include "argv-array.h"
#include "graph.h"
+#include "packfile.h"
#ifdef NO_FAST_WORKING_DIRECTORY
#define FAST_WORKING_DIRECTORY 0
@@ -357,9 +358,6 @@ int git_diff_ui_config(const char *var, const char *value, void *cb)
return 0;
}
- if (git_color_config(var, value, cb) < 0)
- return -1;
-
return git_diff_basic_config(var, value, cb);
}
@@ -404,9 +402,6 @@ int git_diff_basic_config(const char *var, const char *value, void *cb)
return 0;
}
- if (starts_with(var, "submodule."))
- return parse_submodule_config_option(var, value);
-
if (git_diff_heuristic_config(var, value, cb) < 0)
return -1;
@@ -464,11 +459,9 @@ static struct diff_tempfile {
* If this diff_tempfile instance refers to a temporary file,
* this tempfile object is used to manage its lifetime.
*/
- struct tempfile tempfile;
+ struct tempfile *tempfile;
} diff_temp[2];
-typedef unsigned long (*sane_truncate_fn)(char *line, unsigned long len);
-
struct emit_callback {
int color_diff;
unsigned ws_rule;
@@ -476,7 +469,6 @@ struct emit_callback {
int blank_at_eof_in_postimage;
int lno_in_preimage;
int lno_in_postimage;
- sane_truncate_fn truncate;
const char **label_path;
struct diff_words_data *diff_words;
struct diff_options *opt;
@@ -863,6 +855,38 @@ static int shrink_potential_moved_blocks(struct moved_entry **pmb,
return rp + 1;
}
+/*
+ * If o->color_moved is COLOR_MOVED_PLAIN, this function does nothing.
+ *
+ * Otherwise, if the last block has fewer alphanumeric characters than
+ * COLOR_MOVED_MIN_ALNUM_COUNT, unset DIFF_SYMBOL_MOVED_LINE on all lines in
+ * that block.
+ *
+ * The last block consists of the (n - block_length)'th line up to but not
+ * including the nth line.
+ *
+ * NEEDSWORK: This uses the same heuristic as blame_entry_score() in blame.c.
+ * Think of a way to unify them.
+ */
+static void adjust_last_block(struct diff_options *o, int n, int block_length)
+{
+ int i, alnum_count = 0;
+ if (o->color_moved == COLOR_MOVED_PLAIN)
+ return;
+ for (i = 1; i < block_length + 1; i++) {
+ const char *c = o->emitted_symbols->buf[n - i].line;
+ for (; *c; c++) {
+ if (!isalnum(*c))
+ continue;
+ alnum_count++;
+ if (alnum_count >= COLOR_MOVED_MIN_ALNUM_COUNT)
+ return;
+ }
+ }
+ for (i = 1; i < block_length + 1; i++)
+ o->emitted_symbols->buf[n - i].flags &= ~DIFF_SYMBOL_MOVED_LINE;
+}
+
/* Find blocks of moved code, delegate actual coloring decision to helper */
static void mark_color_as_moved(struct diff_options *o,
struct hashmap *add_lines,
@@ -898,20 +922,13 @@ static void mark_color_as_moved(struct diff_options *o,
}
if (!match) {
- if (block_length < COLOR_MOVED_MIN_BLOCK_LENGTH &&
- o->color_moved != COLOR_MOVED_PLAIN) {
- for (i = 0; i < block_length + 1; i++) {
- l = &o->emitted_symbols->buf[n - i];
- l->flags &= ~DIFF_SYMBOL_MOVED_LINE;
- }
- }
+ adjust_last_block(o, n, block_length);
pmb_nr = 0;
block_length = 0;
continue;
}
l->flags |= DIFF_SYMBOL_MOVED_LINE;
- block_length++;
if (o->color_moved == COLOR_MOVED_PLAIN)
continue;
@@ -941,11 +958,17 @@ static void mark_color_as_moved(struct diff_options *o,
}
flipped_block = (flipped_block + 1) % 2;
+
+ adjust_last_block(o, n, block_length);
+ block_length = 0;
}
+ block_length++;
+
if (flipped_block)
l->flags |= DIFF_SYMBOL_MOVED_LINE_ALT;
}
+ adjust_last_block(o, n, block_length);
free(pmb);
}
@@ -1393,7 +1416,7 @@ static void remove_tempfile(void)
{
int i;
for (i = 0; i < ARRAY_SIZE(diff_temp); i++) {
- if (is_tempfile_active(&diff_temp[i].tempfile))
+ if (is_tempfile_active(diff_temp[i].tempfile))
delete_tempfile(&diff_temp[i].tempfile);
diff_temp[i].name = NULL;
}
@@ -1520,7 +1543,7 @@ static void emit_rewrite_diff(const char *name_a,
struct diff_words_buffer {
mmfile_t text;
- long alloc;
+ unsigned long alloc;
struct diff_words_orig {
const char *begin, *end;
} *orig;
@@ -1973,8 +1996,6 @@ static unsigned long sane_truncate_line(struct emit_callback *ecb, char *line, u
unsigned long allot;
size_t l = len;
- if (ecb->truncate)
- return ecb->truncate(line, len);
cp = line;
allot = l;
while (0 < l) {
@@ -2564,6 +2585,7 @@ static void show_stats(struct diffstat_t *data, struct diff_options *options)
}
print_stat_summary_inserts_deletes(options, total_files, adds, dels);
+ strbuf_release(&out);
}
static void show_shortstats(struct diffstat_t *data, struct diff_options *options)
@@ -2819,7 +2841,7 @@ static void show_dirstat_by_line(struct diffstat_t *data, struct diff_options *o
* bytes per "line".
* This is stupid and ugly, but very cheap...
*/
- damage = (damage + 63) / 64;
+ damage = DIV_ROUND_UP(damage, 64);
ALLOC_GROW(dir.files, dir.nr + 1, dir.alloc);
dir.files[dir.nr].name = file->name;
dir.files[dir.nr].changed = damage;
@@ -3701,7 +3723,6 @@ static void prep_temp_blob(const char *path, struct diff_tempfile *temp,
const struct object_id *oid,
int mode)
{
- int fd;
struct strbuf buf = STRBUF_INIT;
struct strbuf template = STRBUF_INIT;
char *path_dup = xstrdup(path);
@@ -3711,18 +3732,18 @@ static void prep_temp_blob(const char *path, struct diff_tempfile *temp,
strbuf_addstr(&template, "XXXXXX_");
strbuf_addstr(&template, base);
- fd = mks_tempfile_ts(&temp->tempfile, template.buf, strlen(base) + 1);
- if (fd < 0)
+ temp->tempfile = mks_tempfile_ts(template.buf, strlen(base) + 1);
+ if (!temp->tempfile)
die_errno("unable to create temp-file");
if (convert_to_working_tree(path,
(const char *)blob, (size_t)size, &buf)) {
blob = buf.buf;
size = buf.len;
}
- if (write_in_full(fd, blob, size) != size)
+ if (write_in_full(temp->tempfile->fd, blob, size) < 0 ||
+ close_tempfile_gently(temp->tempfile))
die_errno("unable to write temp-file");
- close_tempfile(&temp->tempfile);
- temp->name = get_tempfile_path(&temp->tempfile);
+ temp->name = get_tempfile_path(temp->tempfile);
oid_to_hex_r(temp->hex, oid);
xsnprintf(temp->mode, sizeof(temp->mode), "%06o", mode);
strbuf_release(&buf);
@@ -3990,7 +4011,7 @@ static void diff_fill_oid_info(struct diff_filespec *one)
}
if (lstat(one->path, &st) < 0)
die_errno("stat '%s'", one->path);
- if (index_path(one->oid.hash, one->path, &st, 0))
+ if (index_path(&one->oid, one->path, &st, 0))
die("cannot hash %s", one->path);
}
}
@@ -5271,6 +5292,7 @@ static void show_rename_copy(struct diff_options *opt, const char *renamecopy,
emit_diff_symbol(opt, DIFF_SYMBOL_SUMMARY,
sb.buf, sb.len, 0);
show_mode_change(opt, p, 0);
+ strbuf_release(&sb);
}
static void diff_summary(struct diff_options *opt, struct diff_filepair *p)
@@ -5296,6 +5318,7 @@ static void diff_summary(struct diff_options *opt, struct diff_filepair *p)
strbuf_addf(&sb, " (%d%%)\n", similarity_index(p));
emit_diff_symbol(opt, DIFF_SYMBOL_SUMMARY,
sb.buf, sb.len, 0);
+ strbuf_release(&sb);
}
show_mode_change(opt, p, !p->score);
break;
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