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index 2464238ccd6c94a53a0a73de476e33f7cc935ab9..f14288bb8a100c43c6709f658b9a9ca44832fd7f 100644 (file)
--- a/diff.c
+++ b/diff.c
/*
* Copyright (C) 2005 Junio C Hamano
*/
-#include <sys/types.h>
-#include <sys/wait.h>
-#include <signal.h>
#include "cache.h"
#include "quote.h"
#include "diff.h"
#include "xdiff-interface.h"
#include "color.h"
+#ifdef NO_FAST_WORKING_DIRECTORY
+#define FAST_WORKING_DIRECTORY 0
+#else
+#define FAST_WORKING_DIRECTORY 1
+#endif
+
static int use_size_cache;
static int diff_detect_rename_default;
diff_rename_limit_default = git_config_int(var, value);
return 0;
}
- if (!strcmp(var, "diff.color")) {
+ if (!strcmp(var, "diff.color") || !strcmp(var, "color.diff")) {
diff_use_color_default = git_config_colorbool(var, value);
return 0;
}
diff_detect_rename_default = DIFF_DETECT_RENAME;
return 0;
}
- if (!strncmp(var, "diff.color.", 11)) {
+ if (!strncmp(var, "diff.color.", 11) || !strncmp(var, "color.diff.", 11)) {
int slot = parse_diff_color_slot(var, 11);
color_parse(value, var, diff_colors[slot]);
return 0;
diff_populate_filespec(two, 0);
lc_a = count_lines(one->data, one->size);
lc_b = count_lines(two->data, two->size);
- printf("--- %s\n+++ %s\n@@ -", name_a, name_b);
+ printf("--- a/%s\n+++ b/%s\n@@ -", name_a, name_b);
print_line_count(lc_a);
printf(" +");
print_line_count(lc_b);
x->deleted++;
}
-static const char pluses[] = "++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++";
-static const char minuses[]= "----------------------------------------------------------------------";
const char mime_boundary_leader[] = "------------";
-static void show_stats(struct diffstat_t* data)
+static int scale_linear(int it, int width, int max_change)
+{
+ /*
+ * make sure that at least one '-' is printed if there were deletions,
+ * and likewise for '+'.
+ */
+ if (max_change < 2)
+ return it;
+ return ((it - 1) * (width - 1) + max_change - 1) / (max_change - 1);
+}
+
+static void show_name(const char *prefix, const char *name, int len,
+ const char *reset, const char *set)
+{
+ printf(" %s%s%-*s%s |", set, prefix, len, name, reset);
+}
+
+static void show_graph(char ch, int cnt, const char *set, const char *reset)
+{
+ if (cnt <= 0)
+ return;
+ printf("%s", set);
+ while (cnt--)
+ putchar(ch);
+ printf("%s", reset);
+}
+
+static void show_stats(struct diffstat_t* data, struct diff_options *options)
{
int i, len, add, del, total, adds = 0, dels = 0;
- int max, max_change = 0, max_len = 0;
+ int max_change = 0, max_len = 0;
int total_files = data->nr;
+ int width, name_width;
+ const char *reset, *set, *add_c, *del_c;
if (data->nr == 0)
return;
+ width = options->stat_width ? options->stat_width : 80;
+ name_width = options->stat_name_width ? options->stat_name_width : 50;
+
+ /* Sanity: give at least 5 columns to the graph,
+ * but leave at least 10 columns for the name.
+ */
+ if (width < name_width + 15) {
+ if (name_width <= 25)
+ width = name_width + 15;
+ else
+ name_width = width - 15;
+ }
+
+ /* Find the longest filename and max number of changes */
+ reset = diff_get_color(options->color_diff, DIFF_RESET);
+ set = diff_get_color(options->color_diff, DIFF_PLAIN);
+ add_c = diff_get_color(options->color_diff, DIFF_FILE_NEW);
+ del_c = diff_get_color(options->color_diff, DIFF_FILE_OLD);
+
for (i = 0; i < data->nr; i++) {
struct diffstat_file *file = data->files[i];
+ int change = file->added + file->deleted;
+
+ len = quote_c_style(file->name, NULL, NULL, 0);
+ if (len) {
+ char *qname = xmalloc(len + 1);
+ quote_c_style(file->name, qname, NULL, 0);
+ free(file->name);
+ file->name = qname;
+ }
len = strlen(file->name);
if (max_len < len)
if (file->is_binary || file->is_unmerged)
continue;
- if (max_change < file->added + file->deleted)
- max_change = file->added + file->deleted;
+ if (max_change < change)
+ max_change = change;
}
+ /* Compute the width of the graph part;
+ * 10 is for one blank at the beginning of the line plus
+ * " | count " between the name and the graph.
+ *
+ * From here on, name_width is the width of the name area,
+ * and width is the width of the graph area.
+ */
+ name_width = (name_width < max_len) ? name_width : max_len;
+ if (width < (name_width + 10) + max_change)
+ width = width - (name_width + 10);
+ else
+ width = max_change;
+
for (i = 0; i < data->nr; i++) {
const char *prefix = "";
char *name = data->files[i]->name;
int added = data->files[i]->added;
int deleted = data->files[i]->deleted;
-
- if (0 < (len = quote_c_style(name, NULL, NULL, 0))) {
- char *qname = xmalloc(len + 1);
- quote_c_style(name, qname, NULL, 0);
- free(name);
- data->files[i]->name = name = qname;
- }
+ int name_len;
/*
* "scale" the filename
*/
- len = strlen(name);
- max = max_len;
- if (max > 50)
- max = 50;
- if (len > max) {
+ len = name_width;
+ name_len = strlen(name);
+ if (name_width < name_len) {
char *slash;
prefix = "...";
- max -= 3;
- name += len - max;
+ len -= 3;
+ name += name_len - len;
slash = strchr(name, '/');
if (slash)
name = slash;
}
- len = max;
-
- /*
- * scale the add/delete
- */
- max = max_change;
- if (max + len > 70)
- max = 70 - len;
if (data->files[i]->is_binary) {
- printf(" %s%-*s | Bin\n", prefix, len, name);
+ show_name(prefix, name, len, reset, set);
+ printf(" Bin\n");
goto free_diffstat_file;
}
else if (data->files[i]->is_unmerged) {
- printf(" %s%-*s | Unmerged\n", prefix, len, name);
+ show_name(prefix, name, len, reset, set);
+ printf(" Unmerged\n");
goto free_diffstat_file;
}
else if (!data->files[i]->is_renamed &&
goto free_diffstat_file;
}
+ /*
+ * scale the add/delete
+ */
add = added;
del = deleted;
total = add + del;
adds += add;
dels += del;
- if (max_change > 0) {
- total = (total * max + max_change / 2) / max_change;
- add = (add * max + max_change / 2) / max_change;
- del = total - add;
+ if (width <= max_change) {
+ add = scale_linear(add, width, max_change);
+ del = scale_linear(del, width, max_change);
+ total = add + del;
}
- printf(" %s%-*s |%5d %.*s%.*s\n", prefix,
- len, name, added + deleted,
- add, pluses, del, minuses);
+ show_name(prefix, name, len, reset, set);
+ printf("%5d ", added + deleted);
+ show_graph('+', add, add_c, reset);
+ show_graph('-', del, del_c, reset);
+ putchar('\n');
free_diffstat_file:
free(data->files[i]->name);
free(data->files[i]);
}
free(data->files);
+ printf("%s %d files changed, %d insertions(+), %d deletions(-)%s\n",
+ set, total_files, adds, dels, reset);
+}
+
+static void show_shortstats(struct diffstat_t* data)
+{
+ int i, adds = 0, dels = 0, total_files = data->nr;
+
+ if (data->nr == 0)
+ return;
+
+ for (i = 0; i < data->nr; i++) {
+ if (!data->files[i]->is_binary &&
+ !data->files[i]->is_unmerged) {
+ int added = data->files[i]->added;
+ int deleted= data->files[i]->deleted;
+ if (!data->files[i]->is_renamed &&
+ (added + deleted == 0)) {
+ total_files--;
+ } else {
+ adds += added;
+ dels += deleted;
+ }
+ }
+ free(data->files[i]->name);
+ free(data->files[i]);
+ }
+ free(data->files);
+
printf(" %d files changed, %d insertions(+), %d deletions(-)\n",
- total_files, adds, dels);
+ total_files, adds, dels);
+}
+
+static void show_numstat(struct diffstat_t* data, struct diff_options *options)
+{
+ int i;
+
+ for (i = 0; i < data->nr; i++) {
+ struct diffstat_file *file = data->files[i];
+
+ if (file->is_binary)
+ printf("-\t-\t");
+ else
+ printf("%d\t%d\t", file->added, file->deleted);
+ if (options->line_termination &&
+ quote_c_style(file->name, NULL, NULL, 0))
+ quote_c_style(file->name, NULL, stdout, 0);
+ else
+ fputs(file->name, stdout);
+ putchar(options->line_termination);
+ }
}
struct checkdiff_t {
if (line[0] == '+') {
int i, spaces = 0;
- data->lineno++;
-
/* check space before tab */
for (i = 1; i < len && (line[i] == ' ' || line[i] == '\t'); i++)
if (line[i] == ' ')
if (isspace(line[len - 1]))
printf("%s:%d: white space at end: %.*s\n",
data->filename, data->lineno, (int)len, line);
+
+ data->lineno++;
} else if (line[0] == ' ')
data->lineno++;
else if (line[0] == '@') {
* the work tree has that object contents, return true, so that
* prepare_temp_file() does not have to inflate and extract.
*/
-static int work_tree_matches(const char *name, const unsigned char *sha1)
+static int reuse_worktree_file(const char *name, const unsigned char *sha1, int want_file)
{
struct cache_entry *ce;
struct stat st;
if (!active_cache)
return 0;
+ /* We want to avoid the working directory if our caller
+ * doesn't need the data in a normal file, this system
+ * is rather slow with its stat/open/mmap/close syscalls,
+ * and the object is contained in a pack file. The pack
+ * is probably already open and will be faster to obtain
+ * the data through than the working directory. Loose
+ * objects however would tend to be slower as they need
+ * to be individually opened and inflated.
+ */
+ if (!FAST_WORKING_DIRECTORY && !want_file && has_sha1_pack(sha1, NULL))
+ return 0;
+
len = strlen(name);
pos = cache_name_pos(name, len);
if (pos < 0)
if (s->data)
return err;
if (!s->sha1_valid ||
- work_tree_matches(s->path, s->sha1)) {
+ reuse_worktree_file(s->path, s->sha1, 0)) {
struct stat st;
int fd;
if (lstat(s->path, &st) < 0) {
}
if (!one->sha1_valid ||
- work_tree_matches(name, one->sha1)) {
+ reuse_worktree_file(name, one->sha1, 1)) {
struct stat st;
if (lstat(name, &st) < 0) {
if (errno == ENOENT)
DIFF_FORMAT_CHECKDIFF |
DIFF_FORMAT_NO_OUTPUT))
options->output_format &= ~(DIFF_FORMAT_RAW |
+ DIFF_FORMAT_NUMSTAT |
DIFF_FORMAT_DIFFSTAT |
+ DIFF_FORMAT_SHORTSTAT |
DIFF_FORMAT_SUMMARY |
DIFF_FORMAT_PATCH);
* recursive bits for other formats here.
*/
if (options->output_format & (DIFF_FORMAT_PATCH |
+ DIFF_FORMAT_NUMSTAT |
DIFF_FORMAT_DIFFSTAT |
+ DIFF_FORMAT_SHORTSTAT |
+ DIFF_FORMAT_SUMMARY |
DIFF_FORMAT_CHECKDIFF))
options->recursive = 1;
/*
else if (!strcmp(arg, "--patch-with-raw")) {
options->output_format |= DIFF_FORMAT_PATCH | DIFF_FORMAT_RAW;
}
- else if (!strcmp(arg, "--stat"))
+ else if (!strcmp(arg, "--numstat")) {
+ options->output_format |= DIFF_FORMAT_NUMSTAT;
+ }
+ else if (!strcmp(arg, "--shortstat")) {
+ options->output_format |= DIFF_FORMAT_SHORTSTAT;
+ }
+ else if (!strncmp(arg, "--stat", 6)) {
+ char *end;
+ int width = options->stat_width;
+ int name_width = options->stat_name_width;
+ arg += 6;
+ end = (char *)arg;
+
+ switch (*arg) {
+ case '-':
+ if (!strncmp(arg, "-width=", 7))
+ width = strtoul(arg + 7, &end, 10);
+ else if (!strncmp(arg, "-name-width=", 12))
+ name_width = strtoul(arg + 12, &end, 10);
+ break;
+ case '=':
+ width = strtoul(arg+1, &end, 10);
+ if (*end == ',')
+ name_width = strtoul(end+1, &end, 10);
+ }
+
+ /* Important! This checks all the error cases! */
+ if (*end)
+ return 0;
options->output_format |= DIFF_FORMAT_DIFFSTAT;
+ options->stat_name_width = name_width;
+ options->stat_width = width;
+ }
else if (!strcmp(arg, "--check"))
options->output_format |= DIFF_FORMAT_CHECKDIFF;
else if (!strcmp(arg, "--summary"))
separator++;
}
- if (output_format & DIFF_FORMAT_DIFFSTAT) {
+ if (output_format & (DIFF_FORMAT_DIFFSTAT|DIFF_FORMAT_SHORTSTAT|DIFF_FORMAT_NUMSTAT)) {
struct diffstat_t diffstat;
memset(&diffstat, 0, sizeof(struct diffstat_t));
if (check_pair_status(p))
diff_flush_stat(p, options, &diffstat);
}
- show_stats(&diffstat);
+ if (output_format & DIFF_FORMAT_NUMSTAT)
+ show_numstat(&diffstat, options);
+ if (output_format & DIFF_FORMAT_DIFFSTAT)
+ show_stats(&diffstat, options);
+ else if (output_format & DIFF_FORMAT_SHORTSTAT)
+ show_shortstats(&diffstat);
separator++;
}