#include "xdiff-interface.h"
#include "color.h"
#include "attr.h"
+#include "run-command.h"
+#include "utf8.h"
#ifdef NO_FAST_WORKING_DIRECTORY
#define FAST_WORKING_DIRECTORY 0
static int diff_detect_rename_default;
static int diff_rename_limit_default = 100;
-static int diff_use_color_default;
+int diff_use_color_default = -1;
+static const char *external_diff_cmd_cfg;
int diff_auto_refresh_index = 1;
static char diff_colors[][COLOR_MAXLEN] = {
static struct ll_diff_driver {
const char *name;
struct ll_diff_driver *next;
- char *cmd;
+ const char *cmd;
} *user_diff, **user_diff_tail;
-static void read_config_if_needed(void)
-{
- if (!user_diff_tail) {
- user_diff_tail = &user_diff;
- git_config(git_diff_ui_config);
- }
-}
-
/*
* Currently there is only "diff.<drivername>.command" variable;
* because there are "diff.color.<slot>" variables, we are parsing
if (!strncmp(drv->name, name, namelen) && !drv->name[namelen])
break;
if (!drv) {
- char *namebuf;
drv = xcalloc(1, sizeof(struct ll_diff_driver));
- namebuf = xmalloc(namelen + 1);
- memcpy(namebuf, name, namelen);
- namebuf[namelen] = 0;
- drv->name = namebuf;
- drv->next = NULL;
+ drv->name = xmemdupz(name, namelen);
if (!user_diff_tail)
user_diff_tail = &user_diff;
*user_diff_tail = drv;
user_diff_tail = &(drv->next);
}
- if (!value)
- return error("%s: lacks value", var);
- drv->cmd = strdup(value);
- return 0;
+ return git_config_string(&(drv->cmd), var, value);
}
/*
if (!strncmp(pp->name, name, namelen) && !pp->name[namelen])
break;
if (!pp) {
- char *namebuf;
pp = xcalloc(1, sizeof(*pp));
- namebuf = xmalloc(namelen + 1);
- memcpy(namebuf, name, namelen);
- namebuf[namelen] = 0;
- pp->name = namebuf;
+ pp->name = xmemdupz(name, namelen);
pp->next = funcname_pattern_list;
funcname_pattern_list = pp;
}
- if (pp->pattern)
- free(pp->pattern);
+ free(pp->pattern);
pp->pattern = xstrdup(value);
return 0;
}
return 0;
}
if (!strcmp(var, "diff.color") || !strcmp(var, "color.diff")) {
- diff_use_color_default = git_config_colorbool(var, value);
+ diff_use_color_default = git_config_colorbool(var, value, -1);
return 0;
}
if (!strcmp(var, "diff.renames")) {
diff_auto_refresh_index = git_config_bool(var, value);
return 0;
}
+ if (!strcmp(var, "diff.external")) {
+ if (!value)
+ return config_error_nonbool(var);
+ external_diff_cmd_cfg = xstrdup(value);
+ return 0;
+ }
if (!prefixcmp(var, "diff.")) {
const char *ep = strrchr(var, '.');
- if (ep != var + 4) {
- if (!strcmp(ep, ".command"))
- return parse_lldiff_command(var, ep, value);
- if (!strcmp(ep, ".funcname"))
- return parse_funcname_pattern(var, ep, value);
- }
+ if (ep != var + 4 && !strcmp(ep, ".command"))
+ return parse_lldiff_command(var, ep, value);
}
+
+ return git_diff_basic_config(var, value);
+}
+
+int git_diff_basic_config(const char *var, const char *value)
+{
if (!prefixcmp(var, "diff.color.") || !prefixcmp(var, "color.diff.")) {
int slot = parse_diff_color_slot(var, 11);
+ if (!value)
+ return config_error_nonbool(var);
color_parse(value, var, diff_colors[slot]);
return 0;
}
- return git_default_config(var, value);
-}
-
-static char *quote_one(const char *str)
-{
- int needlen;
- char *xp;
+ if (!prefixcmp(var, "diff.")) {
+ const char *ep = strrchr(var, '.');
+ if (ep != var + 4) {
+ if (!strcmp(ep, ".funcname")) {
+ if (!value)
+ return config_error_nonbool(var);
+ return parse_funcname_pattern(var, ep, value);
+ }
+ }
+ }
- if (!str)
- return NULL;
- needlen = quote_c_style(str, NULL, NULL, 0);
- if (!needlen)
- return xstrdup(str);
- xp = xmalloc(needlen + 1);
- quote_c_style(str, xp, NULL, 0);
- return xp;
+ return git_color_default_config(var, value);
}
static char *quote_two(const char *one, const char *two)
{
int need_one = quote_c_style(one, NULL, NULL, 1);
int need_two = quote_c_style(two, NULL, NULL, 1);
- char *xp;
+ struct strbuf res;
+ strbuf_init(&res, 0);
if (need_one + need_two) {
- if (!need_one) need_one = strlen(one);
- if (!need_two) need_one = strlen(two);
-
- xp = xmalloc(need_one + need_two + 3);
- xp[0] = '"';
- quote_c_style(one, xp + 1, NULL, 1);
- quote_c_style(two, xp + need_one + 1, NULL, 1);
- strcpy(xp + need_one + need_two + 1, "\"");
- return xp;
+ strbuf_addch(&res, '"');
+ quote_c_style(one, &res, NULL, 1);
+ quote_c_style(two, &res, NULL, 1);
+ strbuf_addch(&res, '"');
+ } else {
+ strbuf_addstr(&res, one);
+ strbuf_addstr(&res, two);
}
- need_one = strlen(one);
- need_two = strlen(two);
- xp = xmalloc(need_one + need_two + 1);
- strcpy(xp, one);
- strcpy(xp + need_one, two);
- return xp;
+ return strbuf_detach(&res, NULL);
}
static const char *external_diff(void)
if (done_preparing)
return external_diff_cmd;
external_diff_cmd = getenv("GIT_EXTERNAL_DIFF");
+ if (!external_diff_cmd)
+ external_diff_cmd = external_diff_cmd_cfg;
done_preparing = 1;
return external_diff_cmd;
}
return count;
}
-static void print_line_count(int count)
+static void print_line_count(FILE *file, int count)
{
switch (count) {
case 0:
- printf("0,0");
+ fprintf(file, "0,0");
break;
case 1:
- printf("1");
+ fprintf(file, "1");
break;
default:
- printf("1,%d", count);
+ fprintf(file, "1,%d", count);
break;
}
}
-static void copy_file(int prefix, const char *data, int size,
- const char *set, const char *reset)
+static void copy_file_with_prefix(FILE *file,
+ int prefix, const char *data, int size,
+ const char *set, const char *reset)
{
int ch, nl_just_seen = 1;
while (0 < size--) {
ch = *data++;
if (nl_just_seen) {
- fputs(set, stdout);
- putchar(prefix);
+ fputs(set, file);
+ putc(prefix, file);
}
if (ch == '\n') {
nl_just_seen = 1;
- fputs(reset, stdout);
+ fputs(reset, file);
} else
nl_just_seen = 0;
- putchar(ch);
+ putc(ch, file);
}
if (!nl_just_seen)
- printf("%s\n\\ No newline at end of file\n", reset);
+ fprintf(file, "%s\n\\ No newline at end of file\n", reset);
}
static void emit_rewrite_diff(const char *name_a,
const char *name_b,
struct diff_filespec *one,
struct diff_filespec *two,
- int color_diff)
+ struct diff_options *o)
{
int lc_a, lc_b;
+ int color_diff = DIFF_OPT_TST(o, COLOR_DIFF);
const char *name_a_tab, *name_b_tab;
const char *metainfo = diff_get_color(color_diff, DIFF_METAINFO);
const char *fraginfo = diff_get_color(color_diff, DIFF_FRAGINFO);
const char *old = diff_get_color(color_diff, DIFF_FILE_OLD);
const char *new = diff_get_color(color_diff, DIFF_FILE_NEW);
const char *reset = diff_get_color(color_diff, DIFF_RESET);
+ static struct strbuf a_name = STRBUF_INIT, b_name = STRBUF_INIT;
name_a += (*name_a == '/');
name_b += (*name_b == '/');
name_a_tab = strchr(name_a, ' ') ? "\t" : "";
name_b_tab = strchr(name_b, ' ') ? "\t" : "";
+ strbuf_reset(&a_name);
+ strbuf_reset(&b_name);
+ quote_two_c_style(&a_name, o->a_prefix, name_a, 0);
+ quote_two_c_style(&b_name, o->b_prefix, name_b, 0);
+
diff_populate_filespec(one, 0);
diff_populate_filespec(two, 0);
lc_a = count_lines(one->data, one->size);
lc_b = count_lines(two->data, two->size);
- printf("%s--- a/%s%s%s\n%s+++ b/%s%s%s\n%s@@ -",
- metainfo, name_a, name_a_tab, reset,
- metainfo, name_b, name_b_tab, reset, fraginfo);
- print_line_count(lc_a);
- printf(" +");
- print_line_count(lc_b);
- printf(" @@%s\n", reset);
+ fprintf(o->file,
+ "%s--- %s%s%s\n%s+++ %s%s%s\n%s@@ -",
+ metainfo, a_name.buf, name_a_tab, reset,
+ metainfo, b_name.buf, name_b_tab, reset, fraginfo);
+ print_line_count(o->file, lc_a);
+ fprintf(o->file, " +");
+ print_line_count(o->file, lc_b);
+ fprintf(o->file, " @@%s\n", reset);
if (lc_a)
- copy_file('-', one->data, one->size, old, reset);
+ copy_file_with_prefix(o->file, '-', one->data, one->size, old, reset);
if (lc_b)
- copy_file('+', two->data, two->size, new, reset);
+ copy_file_with_prefix(o->file, '+', two->data, two->size, new, reset);
}
static int fill_mmfile(mmfile_t *mf, struct diff_filespec *one)
struct diff_words_data {
struct xdiff_emit_state xm;
struct diff_words_buffer minus, plus;
+ FILE *file;
};
-static void print_word(struct diff_words_buffer *buffer, int len, int color,
+static void print_word(FILE *file, struct diff_words_buffer *buffer, int len, int color,
int suppress_newline)
{
const char *ptr;
len--;
}
- fputs(diff_get_color(1, color), stdout);
- fwrite(ptr, len, 1, stdout);
- fputs(diff_get_color(1, DIFF_RESET), stdout);
+ fputs(diff_get_color(1, color), file);
+ fwrite(ptr, len, 1, file);
+ fputs(diff_get_color(1, DIFF_RESET), file);
if (eol) {
if (suppress_newline)
buffer->suppressed_newline = 1;
else
- putchar('\n');
+ putc('\n', file);
}
}
if (diff_words->minus.suppressed_newline) {
if (line[0] != '+')
- putchar('\n');
+ putc('\n', diff_words->file);
diff_words->minus.suppressed_newline = 0;
}
len--;
switch (line[0]) {
case '-':
- print_word(&diff_words->minus, len, DIFF_FILE_OLD, 1);
+ print_word(diff_words->file,
+ &diff_words->minus, len, DIFF_FILE_OLD, 1);
break;
case '+':
- print_word(&diff_words->plus, len, DIFF_FILE_NEW, 0);
+ print_word(diff_words->file,
+ &diff_words->plus, len, DIFF_FILE_NEW, 0);
break;
case ' ':
- print_word(&diff_words->plus, len, DIFF_PLAIN, 0);
+ print_word(diff_words->file,
+ &diff_words->plus, len, DIFF_PLAIN, 0);
diff_words->minus.current += len;
break;
}
ecb.outf = xdiff_outf;
ecb.priv = diff_words;
diff_words->xm.consume = fn_out_diff_words_aux;
- xdl_diff(&minus, &plus, &xpp, &xecfg, &ecb);
+ xdi_diff(&minus, &plus, &xpp, &xecfg, &ecb);
free(minus.ptr);
free(plus.ptr);
diff_words->minus.text.size = diff_words->plus.text.size = 0;
if (diff_words->minus.suppressed_newline) {
- putchar('\n');
+ putc('\n', diff_words->file);
diff_words->minus.suppressed_newline = 0;
}
}
+typedef unsigned long (*sane_truncate_fn)(char *line, unsigned long len);
+
struct emit_callback {
struct xdiff_emit_state xm;
int nparents, color_diff;
+ unsigned ws_rule;
+ sane_truncate_fn truncate;
const char **label_path;
struct diff_words_data *diff_words;
int *found_changesp;
+ FILE *file;
};
static void free_diff_words_data(struct emit_callback *ecbdata)
ecbdata->diff_words->plus.text.size)
diff_words_show(ecbdata->diff_words);
- if (ecbdata->diff_words->minus.text.ptr)
- free (ecbdata->diff_words->minus.text.ptr);
- if (ecbdata->diff_words->plus.text.ptr)
- free (ecbdata->diff_words->plus.text.ptr);
+ free (ecbdata->diff_words->minus.text.ptr);
+ free (ecbdata->diff_words->plus.text.ptr);
free(ecbdata->diff_words);
ecbdata->diff_words = NULL;
}
return "";
}
-static void emit_line(const char *set, const char *reset, const char *line, int len)
+static void emit_line(FILE *file, const char *set, const char *reset, const char *line, int len)
{
- if (len > 0 && line[len-1] == '\n')
- len--;
- fputs(set, stdout);
- fwrite(line, len, 1, stdout);
- puts(reset);
-}
-
-static void emit_line_with_ws(int nparents,
- const char *set, const char *reset, const char *ws,
- const char *line, int len)
-{
- int col0 = nparents;
- int last_tab_in_indent = -1;
- int last_space_in_indent = -1;
- int i;
- int tail = len;
- int need_highlight_leading_space = 0;
- /* The line is a newly added line. Does it have funny leading
- * whitespaces? In indent, SP should never precede a TAB.
- */
- for (i = col0; i < len; i++) {
- if (line[i] == '\t') {
- last_tab_in_indent = i;
- if (0 <= last_space_in_indent)
- need_highlight_leading_space = 1;
- }
- else if (line[i] == ' ')
- last_space_in_indent = i;
- else
- break;
- }
- fputs(set, stdout);
- fwrite(line, col0, 1, stdout);
- fputs(reset, stdout);
- if (((i == len) || line[i] == '\n') && i != col0) {
- /* The whole line was indent */
- emit_line(ws, reset, line + col0, len - col0);
- return;
- }
- i = col0;
- if (need_highlight_leading_space) {
- while (i < last_tab_in_indent) {
- if (line[i] == ' ') {
- fputs(ws, stdout);
- putchar(' ');
- fputs(reset, stdout);
- }
- else
- putchar(line[i]);
- i++;
- }
- }
- tail = len - 1;
- if (line[tail] == '\n' && i < tail)
- tail--;
- while (i < tail) {
- if (!isspace(line[tail]))
- break;
- tail--;
- }
- if ((i < tail && line[tail + 1] != '\n')) {
- /* This has whitespace between tail+1..len */
- fputs(set, stdout);
- fwrite(line + i, tail - i + 1, 1, stdout);
- fputs(reset, stdout);
- emit_line(ws, reset, line + tail + 1, len - tail - 1);
- }
- else
- emit_line(set, reset, line + i, len - i);
+ fputs(set, file);
+ fwrite(line, len, 1, file);
+ fputs(reset, file);
}
static void emit_add_line(const char *reset, struct emit_callback *ecbdata, const char *line, int len)
const char *set = diff_get_color(ecbdata->color_diff, DIFF_FILE_NEW);
if (!*ws)
- emit_line(set, reset, line, len);
- else
- emit_line_with_ws(ecbdata->nparents, set, reset, ws,
- line, len);
+ emit_line(ecbdata->file, set, reset, line, len);
+ else {
+ /* Emit just the prefix, then the rest. */
+ emit_line(ecbdata->file, set, reset, line, ecbdata->nparents);
+ (void)check_and_emit_line(line + ecbdata->nparents,
+ len - ecbdata->nparents, ecbdata->ws_rule,
+ ecbdata->file, set, reset, ws);
+ }
+}
+
+static unsigned long sane_truncate_line(struct emit_callback *ecb, char *line, unsigned long len)
+{
+ const char *cp;
+ unsigned long allot;
+ size_t l = len;
+
+ if (ecb->truncate)
+ return ecb->truncate(line, len);
+ cp = line;
+ allot = l;
+ while (0 < l) {
+ (void) utf8_width(&cp, &l);
+ if (!cp)
+ break; /* truncated in the middle? */
+ }
+ return allot - l;
}
static void fn_out_consume(void *priv, char *line, unsigned long len)
int i;
int color;
struct emit_callback *ecbdata = priv;
- const char *set = diff_get_color(ecbdata->color_diff, DIFF_METAINFO);
+ const char *meta = diff_get_color(ecbdata->color_diff, DIFF_METAINFO);
+ const char *plain = diff_get_color(ecbdata->color_diff, DIFF_PLAIN);
const char *reset = diff_get_color(ecbdata->color_diff, DIFF_RESET);
*(ecbdata->found_changesp) = 1;
name_a_tab = strchr(ecbdata->label_path[0], ' ') ? "\t" : "";
name_b_tab = strchr(ecbdata->label_path[1], ' ') ? "\t" : "";
- printf("%s--- %s%s%s\n",
- set, ecbdata->label_path[0], reset, name_a_tab);
- printf("%s+++ %s%s%s\n",
- set, ecbdata->label_path[1], reset, name_b_tab);
+ fprintf(ecbdata->file, "%s--- %s%s%s\n",
+ meta, ecbdata->label_path[0], reset, name_a_tab);
+ fprintf(ecbdata->file, "%s+++ %s%s%s\n",
+ meta, ecbdata->label_path[1], reset, name_b_tab);
ecbdata->label_path[0] = ecbdata->label_path[1] = NULL;
}
;
if (2 <= i && i < len && line[i] == ' ') {
ecbdata->nparents = i - 1;
- emit_line(diff_get_color(ecbdata->color_diff, DIFF_FRAGINFO),
+ len = sane_truncate_line(ecbdata, line, len);
+ emit_line(ecbdata->file,
+ diff_get_color(ecbdata->color_diff, DIFF_FRAGINFO),
reset, line, len);
+ if (line[len-1] != '\n')
+ putc('\n', ecbdata->file);
return;
}
if (len < ecbdata->nparents) {
- set = reset;
- emit_line(reset, reset, line, len);
+ emit_line(ecbdata->file, reset, reset, line, len);
return;
}
diff_words_show(ecbdata->diff_words);
line++;
len--;
- emit_line(set, reset, line, len);
+ emit_line(ecbdata->file, plain, reset, line, len);
return;
}
for (i = 0; i < ecbdata->nparents && len; i++) {
}
if (color != DIFF_FILE_NEW) {
- emit_line(diff_get_color(ecbdata->color_diff, color),
+ emit_line(ecbdata->file,
+ diff_get_color(ecbdata->color_diff, color),
reset, line, len);
return;
}
{
const char *old = a;
const char *new = b;
- char *name = NULL;
+ struct strbuf name;
int pfx_length, sfx_length;
int len_a = strlen(a);
int len_b = strlen(b);
+ int a_midlen, b_midlen;
int qlen_a = quote_c_style(a, NULL, NULL, 0);
int qlen_b = quote_c_style(b, NULL, NULL, 0);
+ strbuf_init(&name, 0);
if (qlen_a || qlen_b) {
- if (qlen_a) len_a = qlen_a;
- if (qlen_b) len_b = qlen_b;
- name = xmalloc( len_a + len_b + 5 );
- if (qlen_a)
- quote_c_style(a, name, NULL, 0);
- else
- memcpy(name, a, len_a);
- memcpy(name + len_a, " => ", 4);
- if (qlen_b)
- quote_c_style(b, name + len_a + 4, NULL, 0);
- else
- memcpy(name + len_a + 4, b, len_b + 1);
- return name;
+ quote_c_style(a, &name, NULL, 0);
+ strbuf_addstr(&name, " => ");
+ quote_c_style(b, &name, NULL, 0);
+ return strbuf_detach(&name, NULL);
}
/* Find common prefix */
* pfx{sfx-a => sfx-b}
* name-a => name-b
*/
+ a_midlen = len_a - pfx_length - sfx_length;
+ b_midlen = len_b - pfx_length - sfx_length;
+ if (a_midlen < 0)
+ a_midlen = 0;
+ if (b_midlen < 0)
+ b_midlen = 0;
+
+ strbuf_grow(&name, pfx_length + a_midlen + b_midlen + sfx_length + 7);
if (pfx_length + sfx_length) {
- int a_midlen = len_a - pfx_length - sfx_length;
- int b_midlen = len_b - pfx_length - sfx_length;
- if (a_midlen < 0) a_midlen = 0;
- if (b_midlen < 0) b_midlen = 0;
-
- name = xmalloc(pfx_length + a_midlen + b_midlen + sfx_length + 7);
- sprintf(name, "%.*s{%.*s => %.*s}%s",
- pfx_length, a,
- a_midlen, a + pfx_length,
- b_midlen, b + pfx_length,
- a + len_a - sfx_length);
+ strbuf_add(&name, a, pfx_length);
+ strbuf_addch(&name, '{');
}
- else {
- name = xmalloc(len_a + len_b + 5);
- sprintf(name, "%s => %s", a, b);
+ strbuf_add(&name, a + pfx_length, a_midlen);
+ strbuf_addstr(&name, " => ");
+ strbuf_add(&name, b + pfx_length, b_midlen);
+ if (pfx_length + sfx_length) {
+ strbuf_addch(&name, '}');
+ strbuf_add(&name, a + len_a - sfx_length, sfx_length);
}
- return name;
+ return strbuf_detach(&name, NULL);
}
struct diffstat_t {
int nr;
int alloc;
struct diffstat_file {
+ char *from_name;
char *name;
+ char *print_name;
unsigned is_unmerged:1;
unsigned is_binary:1;
unsigned is_renamed:1;
}
diffstat->files[diffstat->nr++] = x;
if (name_b) {
- x->name = pprint_rename(name_a, name_b);
+ x->from_name = xstrdup(name_a);
+ x->name = xstrdup(name_b);
x->is_renamed = 1;
}
- else
+ else {
+ x->from_name = NULL;
x->name = xstrdup(name_a);
+ }
return x;
}
return ((it - 1) * (width - 1) + max_change - 1) / (max_change - 1);
}
-static void show_name(const char *prefix, const char *name, int len,
+static void show_name(FILE *file,
+ const char *prefix, const char *name, int len,
const char *reset, const char *set)
{
- printf(" %s%s%-*s%s |", set, prefix, len, name, reset);
+ fprintf(file, " %s%s%-*s%s |", set, prefix, len, name, reset);
}
-static void show_graph(char ch, int cnt, const char *set, const char *reset)
+static void show_graph(FILE *file, char ch, int cnt, const char *set, const char *reset)
{
if (cnt <= 0)
return;
- printf("%s", set);
+ fprintf(file, "%s", set);
while (cnt--)
- putchar(ch);
- printf("%s", reset);
+ putc(ch, file);
+ fprintf(file, "%s", reset);
+}
+
+static void fill_print_name(struct diffstat_file *file)
+{
+ char *pname;
+
+ if (file->print_name)
+ return;
+
+ if (!file->is_renamed) {
+ struct strbuf buf;
+ strbuf_init(&buf, 0);
+ if (quote_c_style(file->name, &buf, NULL, 0)) {
+ pname = strbuf_detach(&buf, NULL);
+ } else {
+ pname = file->name;
+ strbuf_release(&buf);
+ }
+ } else {
+ pname = pprint_rename(file->from_name, file->name);
+ }
+ file->print_name = pname;
}
static void show_stats(struct diffstat_t* data, struct diff_options *options)
}
/* 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);
+ reset = diff_get_color_opt(options, DIFF_RESET);
+ set = diff_get_color_opt(options, DIFF_PLAIN);
+ add_c = diff_get_color_opt(options, DIFF_FILE_NEW);
+ del_c = diff_get_color_opt(options, DIFF_FILE_OLD);
for (i = 0; i < data->nr; i++) {
struct diffstat_file *file = data->files[i];
int change = file->added + file->deleted;
-
- if (!file->is_renamed) { /* renames are already quoted by pprint_rename */
- 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);
+ fill_print_name(file);
+ len = strlen(file->print_name);
if (max_len < len)
max_len = len;
for (i = 0; i < data->nr; i++) {
const char *prefix = "";
- char *name = data->files[i]->name;
+ char *name = data->files[i]->print_name;
int added = data->files[i]->added;
int deleted = data->files[i]->deleted;
int name_len;
}
if (data->files[i]->is_binary) {
- show_name(prefix, name, len, reset, set);
- printf(" Bin ");
- printf("%s%d%s", del_c, deleted, reset);
- printf(" -> ");
- printf("%s%d%s", add_c, added, reset);
- printf(" bytes");
- printf("\n");
- goto free_diffstat_file;
+ show_name(options->file, prefix, name, len, reset, set);
+ fprintf(options->file, " Bin ");
+ fprintf(options->file, "%s%d%s", del_c, deleted, reset);
+ fprintf(options->file, " -> ");
+ fprintf(options->file, "%s%d%s", add_c, added, reset);
+ fprintf(options->file, " bytes");
+ fprintf(options->file, "\n");
+ continue;
}
else if (data->files[i]->is_unmerged) {
- show_name(prefix, name, len, reset, set);
- printf(" Unmerged\n");
- goto free_diffstat_file;
+ show_name(options->file, prefix, name, len, reset, set);
+ fprintf(options->file, " Unmerged\n");
+ continue;
}
else if (!data->files[i]->is_renamed &&
(added + deleted == 0)) {
total_files--;
- goto free_diffstat_file;
+ continue;
}
/*
del = scale_linear(del, width, max_change);
total = add + del;
}
- 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",
+ show_name(options->file, prefix, name, len, reset, set);
+ fprintf(options->file, "%5d ", added + deleted);
+ show_graph(options->file, '+', add, add_c, reset);
+ show_graph(options->file, '-', del, del_c, reset);
+ fprintf(options->file, "\n");
+ }
+ fprintf(options->file,
+ "%s %d files changed, %d insertions(+), %d deletions(-)%s\n",
set, total_files, adds, dels, reset);
}
-static void show_shortstats(struct diffstat_t* data)
+static void show_shortstats(struct diffstat_t* data, struct diff_options *options)
{
int i, adds = 0, dels = 0, total_files = data->nr;
dels += deleted;
}
}
- free(data->files[i]->name);
- free(data->files[i]);
}
- free(data->files);
-
- printf(" %d files changed, %d insertions(+), %d deletions(-)\n",
+ fprintf(options->file, " %d files changed, %d insertions(+), %d deletions(-)\n",
total_files, adds, dels);
}
{
int i;
+ if (data->nr == 0)
+ return;
+
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 && !file->is_renamed &&
- quote_c_style(file->name, NULL, NULL, 0))
- quote_c_style(file->name, NULL, stdout, 0);
+ fprintf(options->file, "-\t-\t");
else
- fputs(file->name, stdout);
- putchar(options->line_termination);
+ fprintf(options->file,
+ "%d\t%d\t", file->added, file->deleted);
+ if (options->line_termination) {
+ fill_print_name(file);
+ if (!file->is_renamed)
+ write_name_quoted(file->name, options->file,
+ options->line_termination);
+ else {
+ fputs(file->print_name, options->file);
+ putc(options->line_termination, options->file);
+ }
+ } else {
+ if (file->is_renamed) {
+ putc('\0', options->file);
+ write_name_quoted(file->from_name, options->file, '\0');
+ }
+ write_name_quoted(file->name, options->file, '\0');
+ }
}
}
+struct dirstat_file {
+ const char *name;
+ unsigned long changed;
+};
+
+struct dirstat_dir {
+ struct dirstat_file *files;
+ int alloc, nr, percent, cumulative;
+};
+
+static long gather_dirstat(FILE *file, struct dirstat_dir *dir, unsigned long changed, const char *base, int baselen)
+{
+ unsigned long this_dir = 0;
+ unsigned int sources = 0;
+
+ while (dir->nr) {
+ struct dirstat_file *f = dir->files;
+ int namelen = strlen(f->name);
+ unsigned long this;
+ char *slash;
+
+ if (namelen < baselen)
+ break;
+ if (memcmp(f->name, base, baselen))
+ break;
+ slash = strchr(f->name + baselen, '/');
+ if (slash) {
+ int newbaselen = slash + 1 - f->name;
+ this = gather_dirstat(file, dir, changed, f->name, newbaselen);
+ sources++;
+ } else {
+ this = f->changed;
+ dir->files++;
+ dir->nr--;
+ sources += 2;
+ }
+ this_dir += this;
+ }
+
+ /*
+ * We don't report dirstat's for
+ * - the top level
+ * - or cases where everything came from a single directory
+ * under this directory (sources == 1).
+ */
+ if (baselen && sources != 1) {
+ int permille = this_dir * 1000 / changed;
+ if (permille) {
+ int percent = permille / 10;
+ if (percent >= dir->percent) {
+ fprintf(file, "%4d.%01d%% %.*s\n", percent, permille % 10, baselen, base);
+ if (!dir->cumulative)
+ return 0;
+ }
+ }
+ }
+ return this_dir;
+}
+
+static void show_dirstat(struct diff_options *options)
+{
+ int i;
+ unsigned long changed;
+ struct dirstat_dir dir;
+ struct diff_queue_struct *q = &diff_queued_diff;
+
+ dir.files = NULL;
+ dir.alloc = 0;
+ dir.nr = 0;
+ dir.percent = options->dirstat_percent;
+ dir.cumulative = options->output_format & DIFF_FORMAT_CUMULATIVE;
+
+ changed = 0;
+ for (i = 0; i < q->nr; i++) {
+ struct diff_filepair *p = q->queue[i];
+ const char *name;
+ unsigned long copied, added, damage;
+
+ name = p->one->path ? p->one->path : p->two->path;
+
+ if (DIFF_FILE_VALID(p->one) && DIFF_FILE_VALID(p->two)) {
+ diff_populate_filespec(p->one, 0);
+ diff_populate_filespec(p->two, 0);
+ diffcore_count_changes(p->one, p->two, NULL, NULL, 0,
+ &copied, &added);
+ diff_free_filespec_data(p->one);
+ diff_free_filespec_data(p->two);
+ } else if (DIFF_FILE_VALID(p->one)) {
+ diff_populate_filespec(p->one, 1);
+ copied = added = 0;
+ diff_free_filespec_data(p->one);
+ } else if (DIFF_FILE_VALID(p->two)) {
+ diff_populate_filespec(p->two, 1);
+ copied = 0;
+ added = p->two->size;
+ diff_free_filespec_data(p->two);
+ } else
+ continue;
+
+ /*
+ * Original minus copied is the removed material,
+ * added is the new material. They are both damages
+ * made to the preimage.
+ */
+ damage = (p->one->size - copied) + added;
+
+ ALLOC_GROW(dir.files, dir.nr + 1, dir.alloc);
+ dir.files[dir.nr].name = name;
+ dir.files[dir.nr].changed = damage;
+ changed += damage;
+ dir.nr++;
+ }
+
+ /* This can happen even with many files, if everything was renames */
+ if (!changed)
+ return;
+
+ /* Show all directories with more than x% of the changes */
+ gather_dirstat(options->file, &dir, changed, "", 0);
+}
+
+static void free_diffstat_info(struct diffstat_t *diffstat)
+{
+ int i;
+ for (i = 0; i < diffstat->nr; i++) {
+ struct diffstat_file *f = diffstat->files[i];
+ if (f->name != f->print_name)
+ free(f->print_name);
+ free(f->name);
+ free(f->from_name);
+ free(f);
+ }
+ free(diffstat->files);
+}
+
struct checkdiff_t {
struct xdiff_emit_state xm;
const char *filename;
int lineno, color_diff;
+ unsigned ws_rule;
+ unsigned status;
+ FILE *file;
};
static void checkdiff_consume(void *priv, char *line, unsigned long len)
const char *ws = diff_get_color(data->color_diff, DIFF_WHITESPACE);
const char *reset = diff_get_color(data->color_diff, DIFF_RESET);
const char *set = diff_get_color(data->color_diff, DIFF_FILE_NEW);
+ char *err;
if (line[0] == '+') {
- int i, spaces = 0, space_before_tab = 0, white_space_at_end = 0;
-
- /* check space before tab */
- for (i = 1; i < len && (line[i] == ' ' || line[i] == '\t'); i++)
- if (line[i] == ' ')
- spaces++;
- if (line[i - 1] == '\t' && spaces)
- space_before_tab = 1;
-
- /* check white space at line end */
- if (line[len - 1] == '\n')
- len--;
- if (isspace(line[len - 1]))
- white_space_at_end = 1;
-
- if (space_before_tab || white_space_at_end) {
- printf("%s:%d: %s", data->filename, data->lineno, ws);
- if (space_before_tab) {
- printf("space before tab");
- if (white_space_at_end)
- putchar(',');
- }
- if (white_space_at_end)
- printf("white space at end");
- printf(":%s ", reset);
- emit_line_with_ws(1, set, reset, ws, line, len);
- }
-
data->lineno++;
+ data->status = check_and_emit_line(line + 1, len - 1,
+ data->ws_rule, NULL, NULL, NULL, NULL);
+ if (!data->status)
+ return;
+ err = whitespace_error_string(data->status);
+ fprintf(data->file, "%s:%d: %s.\n", data->filename, data->lineno, err);
+ free(err);
+ emit_line(data->file, set, reset, line, 1);
+ (void)check_and_emit_line(line + 1, len - 1, data->ws_rule,
+ data->file, set, reset, ws);
} else if (line[0] == ' ')
data->lineno++;
else if (line[0] == '@') {
char *plus = strchr(line, '+');
if (plus)
- data->lineno = strtol(plus, NULL, 10);
+ data->lineno = strtol(plus, NULL, 10) - 1;
else
die("invalid diff");
}
return deflated;
}
-static void emit_binary_diff_body(mmfile_t *one, mmfile_t *two)
+static void emit_binary_diff_body(FILE *file, mmfile_t *one, mmfile_t *two)
{
void *cp;
void *delta;
}
if (delta && delta_size < deflate_size) {
- printf("delta %lu\n", orig_size);
+ fprintf(file, "delta %lu\n", orig_size);
free(deflated);
data = delta;
data_size = delta_size;
}
else {
- printf("literal %lu\n", two->size);
+ fprintf(file, "literal %lu\n", two->size);
free(delta);
data = deflated;
data_size = deflate_size;
line[0] = bytes - 26 + 'a' - 1;
encode_85(line + 1, cp, bytes);
cp = (char *) cp + bytes;
- puts(line);
+ fputs(line, file);
+ fputc('\n', file);
}
- printf("\n");
+ fprintf(file, "\n");
free(data);
}
-static void emit_binary_diff(mmfile_t *one, mmfile_t *two)
+static void emit_binary_diff(FILE *file, mmfile_t *one, mmfile_t *two)
{
- printf("GIT binary patch\n");
- emit_binary_diff_body(one, two);
- emit_binary_diff_body(two, one);
+ fprintf(file, "GIT binary patch\n");
+ emit_binary_diff_body(file, one, two);
+ emit_binary_diff_body(file, two, one);
}
static void setup_diff_attr_check(struct git_attr_check *check)
{
struct funcname_pattern *pp;
- read_config_if_needed();
for (pp = funcname_pattern_list; pp; pp = pp->next)
if (!strcmp(ident, pp->name))
return pp->pattern;
"new\\|return\\|switch\\|throw\\|while\\)\n"
"^[ ]*\\(\\([ ]*"
"[A-Za-z_][A-Za-z_0-9]*\\)\\{2,\\}"
- "[ ]*([^;]*$\\)" },
+ "[ ]*([^;]*\\)$" },
{ "tex", "^\\(\\\\\\(sub\\)*section{.*\\)$" },
};
/*
* And define built-in fallback patterns here. Note that
- * these can be overriden by the user's config settings.
+ * these can be overridden by the user's config settings.
*/
for (i = 0; i < ARRAY_SIZE(builtin_funcname_pattern); i++)
if (!strcmp(ident, builtin_funcname_pattern[i].name))
mmfile_t mf1, mf2;
const char *lbl[2];
char *a_one, *b_two;
- const char *set = diff_get_color(o->color_diff, DIFF_METAINFO);
- const char *reset = diff_get_color(o->color_diff, DIFF_RESET);
+ const char *set = diff_get_color_opt(o, DIFF_METAINFO);
+ const char *reset = diff_get_color_opt(o, DIFF_RESET);
- a_one = quote_two("a/", name_a + (*name_a == '/'));
- b_two = quote_two("b/", name_b + (*name_b == '/'));
+ a_one = quote_two(o->a_prefix, name_a + (*name_a == '/'));
+ b_two = quote_two(o->b_prefix, name_b + (*name_b == '/'));
lbl[0] = DIFF_FILE_VALID(one) ? a_one : "/dev/null";
lbl[1] = DIFF_FILE_VALID(two) ? b_two : "/dev/null";
- printf("%sdiff --git %s %s%s\n", set, a_one, b_two, reset);
+ fprintf(o->file, "%sdiff --git %s %s%s\n", set, a_one, b_two, reset);
if (lbl[0][0] == '/') {
/* /dev/null */
- printf("%snew file mode %06o%s\n", set, two->mode, reset);
+ fprintf(o->file, "%snew file mode %06o%s\n", set, two->mode, reset);
if (xfrm_msg && xfrm_msg[0])
- printf("%s%s%s\n", set, xfrm_msg, reset);
+ fprintf(o->file, "%s%s%s\n", set, xfrm_msg, reset);
}
else if (lbl[1][0] == '/') {
- printf("%sdeleted file mode %06o%s\n", set, one->mode, reset);
+ fprintf(o->file, "%sdeleted file mode %06o%s\n", set, one->mode, reset);
if (xfrm_msg && xfrm_msg[0])
- printf("%s%s%s\n", set, xfrm_msg, reset);
+ fprintf(o->file, "%s%s%s\n", set, xfrm_msg, reset);
}
else {
if (one->mode != two->mode) {
- printf("%sold mode %06o%s\n", set, one->mode, reset);
- printf("%snew mode %06o%s\n", set, two->mode, reset);
+ fprintf(o->file, "%sold mode %06o%s\n", set, one->mode, reset);
+ fprintf(o->file, "%snew mode %06o%s\n", set, two->mode, reset);
}
if (xfrm_msg && xfrm_msg[0])
- printf("%s%s%s\n", set, xfrm_msg, reset);
+ fprintf(o->file, "%s%s%s\n", set, xfrm_msg, reset);
/*
* we do not run diff between different kind
* of objects.
if ((one->mode ^ two->mode) & S_IFMT)
goto free_ab_and_return;
if (complete_rewrite) {
- emit_rewrite_diff(name_a, name_b, one, two,
- o->color_diff);
+ emit_rewrite_diff(name_a, name_b, one, two, o);
o->found_changes = 1;
goto free_ab_and_return;
}
if (fill_mmfile(&mf1, one) < 0 || fill_mmfile(&mf2, two) < 0)
die("unable to read files to diff");
- if (!o->text &&
+ if (!DIFF_OPT_TST(o, TEXT) &&
(diff_filespec_is_binary(one) || diff_filespec_is_binary(two))) {
/* Quite common confusing case */
if (mf1.size == mf2.size &&
!memcmp(mf1.ptr, mf2.ptr, mf1.size))
goto free_ab_and_return;
- if (o->binary)
- emit_binary_diff(&mf1, &mf2);
+ if (DIFF_OPT_TST(o, BINARY))
+ emit_binary_diff(o->file, &mf1, &mf2);
else
- printf("Binary files %s and %s differ\n",
- lbl[0], lbl[1]);
+ fprintf(o->file, "Binary files %s and %s differ\n",
+ lbl[0], lbl[1]);
o->found_changes = 1;
}
else {
memset(&xecfg, 0, sizeof(xecfg));
memset(&ecbdata, 0, sizeof(ecbdata));
ecbdata.label_path = lbl;
- ecbdata.color_diff = o->color_diff;
+ ecbdata.color_diff = DIFF_OPT_TST(o, COLOR_DIFF);
ecbdata.found_changesp = &o->found_changes;
+ ecbdata.ws_rule = whitespace_rule(name_b ? name_b : name_a);
+ ecbdata.file = o->file;
xpp.flags = XDF_NEED_MINIMAL | o->xdl_opts;
xecfg.ctxlen = o->context;
xecfg.flags = XDL_EMIT_FUNCNAMES;
ecb.outf = xdiff_outf;
ecb.priv = &ecbdata;
ecbdata.xm.consume = fn_out_consume;
- if (o->color_diff_words)
+ if (DIFF_OPT_TST(o, COLOR_DIFF_WORDS)) {
ecbdata.diff_words =
xcalloc(1, sizeof(struct diff_words_data));
- xdl_diff(&mf1, &mf2, &xpp, &xecfg, &ecb);
- if (o->color_diff_words)
+ ecbdata.diff_words->file = o->file;
+ }
+ xdi_diff(&mf1, &mf2, &xpp, &xecfg, &ecb);
+ if (DIFF_OPT_TST(o, COLOR_DIFF_WORDS))
free_diff_words_data(&ecbdata);
}
xpp.flags = XDF_NEED_MINIMAL | o->xdl_opts;
ecb.outf = xdiff_outf;
ecb.priv = diffstat;
- xdl_diff(&mf1, &mf2, &xpp, &xecfg, &ecb);
+ xdi_diff(&mf1, &mf2, &xpp, &xecfg, &ecb);
}
free_and_return:
}
static void builtin_checkdiff(const char *name_a, const char *name_b,
+ const char *attr_path,
struct diff_filespec *one,
struct diff_filespec *two, struct diff_options *o)
{
data.xm.consume = checkdiff_consume;
data.filename = name_b ? name_b : name_a;
data.lineno = 0;
- data.color_diff = o->color_diff;
+ data.color_diff = DIFF_OPT_TST(o, COLOR_DIFF);
+ data.ws_rule = whitespace_rule(attr_path);
+ data.file = o->file;
if (fill_mmfile(&mf1, one) < 0 || fill_mmfile(&mf2, two) < 0)
die("unable to read files to diff");
xpp.flags = XDF_NEED_MINIMAL;
ecb.outf = xdiff_outf;
ecb.priv = &data;
- xdl_diff(&mf1, &mf2, &xpp, &xecfg, &ecb);
+ xdi_diff(&mf1, &mf2, &xpp, &xecfg, &ecb);
}
free_and_return:
diff_free_filespec_data(one);
diff_free_filespec_data(two);
+ if (data.status)
+ DIFF_OPT_SET(o, CHECK_FAILED);
}
struct diff_filespec *alloc_filespec(const char *path)
memset(spec, 0, sizeof(*spec));
spec->path = (char *)(spec + 1);
memcpy(spec->path, path, namelen+1);
+ spec->count = 1;
return spec;
}
+void free_filespec(struct diff_filespec *spec)
+{
+ if (!--spec->count) {
+ diff_free_filespec_data(spec);
+ free(spec);
+ }
+}
+
void fill_filespec(struct diff_filespec *spec, const unsigned char *sha1,
unsigned short mode)
{
if (pos < 0)
return 0;
ce = active_cache[pos];
- if ((lstat(name, &st) < 0) ||
- !S_ISREG(st.st_mode) || /* careful! */
- ce_match_stat(ce, &st, 0) ||
- hashcmp(sha1, ce->sha1))
+
+ /*
+ * This is not the sha1 we are looking for, or
+ * unreusable because it is not a regular file.
+ */
+ if (hashcmp(sha1, ce->sha1) || !S_ISREG(ce->ce_mode))
return 0;
- /* we return 1 only when we can stat, it is a regular file,
- * stat information matches, and sha1 recorded in the cache
- * matches. I.e. we know the file in the work tree really is
- * the same as the <name, sha1> pair.
+
+ /*
+ * If ce matches the file in the work tree, we can reuse it.
*/
- return 1;
+ if (ce_uptodate(ce) ||
+ (!lstat(name, &st) && !ce_match_stat(ce, &st, 0)))
+ return 1;
+
+ return 0;
}
static int populate_from_stdin(struct diff_filespec *s)
{
-#define INCREMENT 1024
- char *buf;
- unsigned long size;
- ssize_t got;
-
- size = 0;
- buf = NULL;
- while (1) {
- buf = xrealloc(buf, size + INCREMENT);
- got = xread(0, buf + size, INCREMENT);
- if (!got)
- break; /* EOF */
- if (got < 0)
- return error("error while reading from stdin %s",
+ struct strbuf buf;
+ size_t size = 0;
+
+ strbuf_init(&buf, 0);
+ if (strbuf_read(&buf, 0, 0) < 0)
+ return error("error while reading from stdin %s",
strerror(errno));
- size += got;
- }
+
s->should_munmap = 0;
- s->data = buf;
+ s->data = strbuf_detach(&buf, &size);
s->size = size;
s->should_free = 1;
return 0;
if (!s->sha1_valid ||
reuse_worktree_file(s->path, s->sha1, 0)) {
+ struct strbuf buf;
struct stat st;
int fd;
- char *buf;
- unsigned long size;
if (!strcmp(s->path, "-"))
return populate_from_stdin(s);
/*
* Convert from working tree format to canonical git format
*/
- size = s->size;
- buf = convert_to_git(s->path, s->data, &size);
- if (buf) {
+ strbuf_init(&buf, 0);
+ if (convert_to_git(s->path, s->data, s->size, &buf, safe_crlf)) {
+ size_t size = 0;
munmap(s->data, s->size);
s->should_munmap = 0;
- s->data = buf;
+ s->data = strbuf_detach(&buf, &size);
s->size = size;
s->should_free = 1;
}
raise(signo);
}
-static int spawn_prog(const char *pgm, const char **arg)
-{
- pid_t pid;
- int status;
-
- fflush(NULL);
- pid = fork();
- if (pid < 0)
- die("unable to fork");
- if (!pid) {
- execvp(pgm, (char *const*) arg);
- exit(255);
- }
-
- while (waitpid(pid, &status, 0) < 0) {
- if (errno == EINTR)
- continue;
- return -1;
- }
-
- /* Earlier we did not check the exit status because
- * diff exits non-zero if files are different, and
- * we are not interested in knowing that. It was a
- * mistake which made it harder to quit a diff-*
- * session that uses the git-apply-patch-script as
- * the GIT_EXTERNAL_DIFF. A custom GIT_EXTERNAL_DIFF
- * should also exit non-zero only when it wants to
- * abort the entire diff-* session.
- */
- if (WIFEXITED(status) && !WEXITSTATUS(status))
- return 0;
- return -1;
-}
-
/* An external diff command takes:
*
* diff-cmd name infile1 infile1-sha1 infile1-mode \
*arg++ = name;
}
*arg = NULL;
- retval = spawn_prog(pgm, spawn_arg);
+ fflush(NULL);
+ retval = run_command_v_opt(spawn_arg, 0);
remove_tempfile();
if (retval) {
fprintf(stderr, "external diff died, stopping at %s.\n", name);
{
struct git_attr_check attr_diff_check;
+ if (!name)
+ return NULL;
+
setup_diff_attr_check(&attr_diff_check);
if (!git_checkattr(name, 1, &attr_diff_check)) {
const char *value = attr_diff_check.value;
!ATTR_UNSET(value)) {
struct ll_diff_driver *drv;
- read_config_if_needed();
for (drv = user_diff; drv; drv = drv->next)
if (!strcmp(drv->name, value))
return drv->cmd;
static void run_diff_cmd(const char *pgm,
const char *name,
const char *other,
+ const char *attr_path,
struct diff_filespec *one,
struct diff_filespec *two,
const char *xfrm_msg,
struct diff_options *o,
int complete_rewrite)
{
- if (!o->allow_external)
+ if (!DIFF_OPT_TST(o, ALLOW_EXTERNAL))
pgm = NULL;
else {
- const char *cmd = external_diff_attr(name);
+ const char *cmd = external_diff_attr(attr_path);
if (cmd)
pgm = cmd;
}
builtin_diff(name, other ? other : name,
one, two, xfrm_msg, o, complete_rewrite);
else
- printf("* Unmerged path %s\n", name);
+ fprintf(o->file, "* Unmerged path %s\n", name);
}
static void diff_fill_sha1_info(struct diff_filespec *one)
return p->score * 100 / MAX_SCORE;
}
+static void strip_prefix(int prefix_length, const char **namep, const char **otherp)
+{
+ /* Strip the prefix but do not molest /dev/null and absolute paths */
+ if (*namep && **namep != '/')
+ *namep += prefix_length;
+ if (*otherp && **otherp != '/')
+ *otherp += prefix_length;
+}
+
static void run_diff(struct diff_filepair *p, struct diff_options *o)
{
const char *pgm = external_diff();
- char msg[PATH_MAX*2+300], *xfrm_msg;
- struct diff_filespec *one;
- struct diff_filespec *two;
+ struct strbuf msg;
+ char *xfrm_msg;
+ struct diff_filespec *one = p->one;
+ struct diff_filespec *two = p->two;
const char *name;
const char *other;
- char *name_munged, *other_munged;
+ const char *attr_path;
int complete_rewrite = 0;
- int len;
+
+ name = p->one->path;
+ other = (strcmp(name, p->two->path) ? p->two->path : NULL);
+ attr_path = name;
+ if (o->prefix_length)
+ strip_prefix(o->prefix_length, &name, &other);
if (DIFF_PAIR_UNMERGED(p)) {
- /* unmerged */
- run_diff_cmd(pgm, p->one->path, NULL, NULL, NULL, NULL, o, 0);
+ run_diff_cmd(pgm, name, NULL, attr_path,
+ NULL, NULL, NULL, o, 0);
return;
}
- name = p->one->path;
- other = (strcmp(name, p->two->path) ? p->two->path : NULL);
- name_munged = quote_one(name);
- other_munged = quote_one(other);
- one = p->one; two = p->two;
-
diff_fill_sha1_info(one);
diff_fill_sha1_info(two);
- len = 0;
+ strbuf_init(&msg, PATH_MAX * 2 + 300);
switch (p->status) {
case DIFF_STATUS_COPIED:
- len += snprintf(msg + len, sizeof(msg) - len,
- "similarity index %d%%\n"
- "copy from %s\n"
- "copy to %s\n",
- similarity_index(p), name_munged, other_munged);
+ strbuf_addf(&msg, "similarity index %d%%", similarity_index(p));
+ strbuf_addstr(&msg, "\ncopy from ");
+ quote_c_style(name, &msg, NULL, 0);
+ strbuf_addstr(&msg, "\ncopy to ");
+ quote_c_style(other, &msg, NULL, 0);
+ strbuf_addch(&msg, '\n');
break;
case DIFF_STATUS_RENAMED:
- len += snprintf(msg + len, sizeof(msg) - len,
- "similarity index %d%%\n"
- "rename from %s\n"
- "rename to %s\n",
- similarity_index(p), name_munged, other_munged);
+ strbuf_addf(&msg, "similarity index %d%%", similarity_index(p));
+ strbuf_addstr(&msg, "\nrename from ");
+ quote_c_style(name, &msg, NULL, 0);
+ strbuf_addstr(&msg, "\nrename to ");
+ quote_c_style(other, &msg, NULL, 0);
+ strbuf_addch(&msg, '\n');
break;
case DIFF_STATUS_MODIFIED:
if (p->score) {
- len += snprintf(msg + len, sizeof(msg) - len,
- "dissimilarity index %d%%\n",
+ strbuf_addf(&msg, "dissimilarity index %d%%\n",
similarity_index(p));
complete_rewrite = 1;
break;
}
if (hashcmp(one->sha1, two->sha1)) {
- int abbrev = o->full_index ? 40 : DEFAULT_ABBREV;
+ int abbrev = DIFF_OPT_TST(o, FULL_INDEX) ? 40 : DEFAULT_ABBREV;
- if (o->binary) {
+ if (DIFF_OPT_TST(o, BINARY)) {
mmfile_t mf;
if ((!fill_mmfile(&mf, one) && diff_filespec_is_binary(one)) ||
(!fill_mmfile(&mf, two) && diff_filespec_is_binary(two)))
abbrev = 40;
}
- len += snprintf(msg + len, sizeof(msg) - len,
- "index %.*s..%.*s",
+ strbuf_addf(&msg, "index %.*s..%.*s",
abbrev, sha1_to_hex(one->sha1),
abbrev, sha1_to_hex(two->sha1));
if (one->mode == two->mode)
- len += snprintf(msg + len, sizeof(msg) - len,
- " %06o", one->mode);
- len += snprintf(msg + len, sizeof(msg) - len, "\n");
+ strbuf_addf(&msg, " %06o", one->mode);
+ strbuf_addch(&msg, '\n');
}
- if (len)
- msg[--len] = 0;
- xfrm_msg = len ? msg : NULL;
+ if (msg.len)
+ strbuf_setlen(&msg, msg.len - 1);
+ xfrm_msg = msg.len ? msg.buf : NULL;
if (!pgm &&
DIFF_FILE_VALID(one) && DIFF_FILE_VALID(two) &&
* needs to be split into deletion and creation.
*/
struct diff_filespec *null = alloc_filespec(two->path);
- run_diff_cmd(NULL, name, other, one, null, xfrm_msg, o, 0);
+ run_diff_cmd(NULL, name, other, attr_path,
+ one, null, xfrm_msg, o, 0);
free(null);
null = alloc_filespec(one->path);
- run_diff_cmd(NULL, name, other, null, two, xfrm_msg, o, 0);
+ run_diff_cmd(NULL, name, other, attr_path,
+ null, two, xfrm_msg, o, 0);
free(null);
}
else
- run_diff_cmd(pgm, name, other, one, two, xfrm_msg, o,
- complete_rewrite);
+ run_diff_cmd(pgm, name, other, attr_path,
+ one, two, xfrm_msg, o, complete_rewrite);
- free(name_munged);
- free(other_munged);
+ strbuf_release(&msg);
}
static void run_diffstat(struct diff_filepair *p, struct diff_options *o,
name = p->one->path;
other = (strcmp(name, p->two->path) ? p->two->path : NULL);
+ if (o->prefix_length)
+ strip_prefix(o->prefix_length, &name, &other);
+
diff_fill_sha1_info(p->one);
diff_fill_sha1_info(p->two);
{
const char *name;
const char *other;
+ const char *attr_path;
if (DIFF_PAIR_UNMERGED(p)) {
/* unmerged */
name = p->one->path;
other = (strcmp(name, p->two->path) ? p->two->path : NULL);
+ attr_path = other ? other : name;
+
+ if (o->prefix_length)
+ strip_prefix(o->prefix_length, &name, &other);
diff_fill_sha1_info(p->one);
diff_fill_sha1_info(p->two);
- builtin_checkdiff(name, other, p->one, p->two, o);
+ builtin_checkdiff(name, other, attr_path, p->one, p->two, o);
}
void diff_setup(struct diff_options *options)
{
memset(options, 0, sizeof(*options));
+
+ options->file = stdout;
+
options->line_termination = '\n';
options->break_opt = -1;
options->rename_limit = -1;
+ options->dirstat_percent = 3;
options->context = 3;
options->msg_sep = "";
options->change = diff_change;
options->add_remove = diff_addremove;
- options->color_diff = diff_use_color_default;
+ if (diff_use_color_default > 0)
+ DIFF_OPT_SET(options, COLOR_DIFF);
+ else
+ DIFF_OPT_CLR(options, COLOR_DIFF);
options->detect_rename = diff_detect_rename_default;
+
+ options->a_prefix = "a/";
+ options->b_prefix = "b/";
}
int diff_setup_done(struct diff_options *options)
if (count > 1)
die("--name-only, --name-status, --check and -s are mutually exclusive");
- if (options->find_copies_harder)
+ if (DIFF_OPT_TST(options, FIND_COPIES_HARDER))
options->detect_rename = DIFF_DETECT_COPY;
+ if (!DIFF_OPT_TST(options, RELATIVE_NAME))
+ options->prefix = NULL;
+ if (options->prefix)
+ options->prefix_length = strlen(options->prefix);
+ else
+ options->prefix_length = 0;
+
if (options->output_format & (DIFF_FORMAT_NAME |
DIFF_FORMAT_NAME_STATUS |
DIFF_FORMAT_CHECKDIFF |
DIFF_FORMAT_NUMSTAT |
DIFF_FORMAT_DIFFSTAT |
DIFF_FORMAT_SHORTSTAT |
+ DIFF_FORMAT_DIRSTAT |
DIFF_FORMAT_SUMMARY |
DIFF_FORMAT_PATCH);
DIFF_FORMAT_NUMSTAT |
DIFF_FORMAT_DIFFSTAT |
DIFF_FORMAT_SHORTSTAT |
+ DIFF_FORMAT_DIRSTAT |
DIFF_FORMAT_SUMMARY |
DIFF_FORMAT_CHECKDIFF))
- options->recursive = 1;
+ DIFF_OPT_SET(options, RECURSIVE);
/*
* Also pickaxe would not work very well if you do not say recursive
*/
if (options->pickaxe)
- options->recursive = 1;
+ DIFF_OPT_SET(options, RECURSIVE);
if (options->detect_rename && options->rename_limit < 0)
options->rename_limit = diff_rename_limit_default;
* to have found. It does not make sense not to return with
* exit code in such a case either.
*/
- if (options->quiet) {
+ if (DIFF_OPT_TST(options, QUIET)) {
options->output_format = DIFF_FORMAT_NO_OUTPUT;
- options->exit_with_status = 1;
+ DIFF_OPT_SET(options, EXIT_WITH_STATUS);
}
/*
* upon the first hit. We need to run diff as usual.
*/
if (options->pickaxe || options->filter)
- options->quiet = 0;
+ DIFF_OPT_CLR(options, QUIET);
return 0;
}
int diff_opt_parse(struct diff_options *options, const char **av, int ac)
{
const char *arg = av[0];
+
+ /* Output format options */
if (!strcmp(arg, "-p") || !strcmp(arg, "-u"))
options->output_format |= DIFF_FORMAT_PATCH;
else if (opt_arg(arg, 'U', "unified", &options->context))
options->output_format |= DIFF_FORMAT_PATCH;
else if (!strcmp(arg, "--raw"))
options->output_format |= DIFF_FORMAT_RAW;
- else if (!strcmp(arg, "--patch-with-raw")) {
+ else if (!strcmp(arg, "--patch-with-raw"))
options->output_format |= DIFF_FORMAT_PATCH | DIFF_FORMAT_RAW;
- }
- else if (!strcmp(arg, "--numstat")) {
+ else if (!strcmp(arg, "--numstat"))
options->output_format |= DIFF_FORMAT_NUMSTAT;
- }
- else if (!strcmp(arg, "--shortstat")) {
+ else if (!strcmp(arg, "--shortstat"))
options->output_format |= DIFF_FORMAT_SHORTSTAT;
- }
+ else if (opt_arg(arg, 'X', "dirstat", &options->dirstat_percent))
+ options->output_format |= DIFF_FORMAT_DIRSTAT;
+ else if (!strcmp(arg, "--cumulative"))
+ options->output_format |= DIFF_FORMAT_CUMULATIVE;
+ else if (!strcmp(arg, "--check"))
+ options->output_format |= DIFF_FORMAT_CHECKDIFF;
+ else if (!strcmp(arg, "--summary"))
+ options->output_format |= DIFF_FORMAT_SUMMARY;
+ else if (!strcmp(arg, "--patch-with-stat"))
+ options->output_format |= DIFF_FORMAT_PATCH | DIFF_FORMAT_DIFFSTAT;
+ else if (!strcmp(arg, "--name-only"))
+ options->output_format |= DIFF_FORMAT_NAME;
+ else if (!strcmp(arg, "--name-status"))
+ options->output_format |= DIFF_FORMAT_NAME_STATUS;
+ else if (!strcmp(arg, "-s"))
+ options->output_format |= DIFF_FORMAT_NO_OUTPUT;
else if (!prefixcmp(arg, "--stat")) {
char *end;
int width = options->stat_width;
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"))
- options->output_format |= DIFF_FORMAT_SUMMARY;
- else if (!strcmp(arg, "--patch-with-stat")) {
- options->output_format |= DIFF_FORMAT_PATCH | DIFF_FORMAT_DIFFSTAT;
- }
- else if (!strcmp(arg, "-z"))
- options->line_termination = 0;
- else if (!prefixcmp(arg, "-l"))
- options->rename_limit = strtoul(arg+2, NULL, 10);
- else if (!strcmp(arg, "--full-index"))
- options->full_index = 1;
- else if (!strcmp(arg, "--binary")) {
- options->output_format |= DIFF_FORMAT_PATCH;
- options->binary = 1;
- }
- else if (!strcmp(arg, "-a") || !strcmp(arg, "--text")) {
- options->text = 1;
- }
- else if (!strcmp(arg, "--name-only"))
- options->output_format |= DIFF_FORMAT_NAME;
- else if (!strcmp(arg, "--name-status"))
- options->output_format |= DIFF_FORMAT_NAME_STATUS;
- else if (!strcmp(arg, "-R"))
- options->reverse_diff = 1;
- else if (!prefixcmp(arg, "-S"))
- options->pickaxe = arg + 2;
- else if (!strcmp(arg, "-s")) {
- options->output_format |= DIFF_FORMAT_NO_OUTPUT;
- }
- else if (!prefixcmp(arg, "-O"))
- options->orderfile = arg + 2;
- else if (!prefixcmp(arg, "--diff-filter="))
- options->filter = arg + 14;
- else if (!strcmp(arg, "--pickaxe-all"))
- options->pickaxe_opts = DIFF_PICKAXE_ALL;
- else if (!strcmp(arg, "--pickaxe-regex"))
- options->pickaxe_opts = DIFF_PICKAXE_REGEX;
+
+ /* renames options */
else if (!prefixcmp(arg, "-B")) {
- if ((options->break_opt =
- diff_scoreopt_parse(arg)) == -1)
+ if ((options->break_opt = diff_scoreopt_parse(arg)) == -1)
return -1;
}
else if (!prefixcmp(arg, "-M")) {
- if ((options->rename_score =
- diff_scoreopt_parse(arg)) == -1)
+ if ((options->rename_score = diff_scoreopt_parse(arg)) == -1)
return -1;
options->detect_rename = DIFF_DETECT_RENAME;
}
else if (!prefixcmp(arg, "-C")) {
if (options->detect_rename == DIFF_DETECT_COPY)
- options->find_copies_harder = 1;
- if ((options->rename_score =
- diff_scoreopt_parse(arg)) == -1)
+ DIFF_OPT_SET(options, FIND_COPIES_HARDER);
+ if ((options->rename_score = diff_scoreopt_parse(arg)) == -1)
return -1;
options->detect_rename = DIFF_DETECT_COPY;
}
- else if (!strcmp(arg, "--find-copies-harder"))
- options->find_copies_harder = 1;
- else if (!strcmp(arg, "--follow"))
- options->follow_renames = 1;
- else if (!strcmp(arg, "--abbrev"))
- options->abbrev = DEFAULT_ABBREV;
- else if (!prefixcmp(arg, "--abbrev=")) {
- options->abbrev = strtoul(arg + 9, NULL, 10);
- if (options->abbrev < MINIMUM_ABBREV)
- options->abbrev = MINIMUM_ABBREV;
- else if (40 < options->abbrev)
- options->abbrev = 40;
+ else if (!strcmp(arg, "--no-renames"))
+ options->detect_rename = 0;
+ else if (!strcmp(arg, "--relative"))
+ DIFF_OPT_SET(options, RELATIVE_NAME);
+ else if (!prefixcmp(arg, "--relative=")) {
+ DIFF_OPT_SET(options, RELATIVE_NAME);
+ options->prefix = arg + 11;
}
- else if (!strcmp(arg, "--color"))
- options->color_diff = 1;
- else if (!strcmp(arg, "--no-color"))
- options->color_diff = 0;
+
+ /* xdiff options */
else if (!strcmp(arg, "-w") || !strcmp(arg, "--ignore-all-space"))
options->xdl_opts |= XDF_IGNORE_WHITESPACE;
else if (!strcmp(arg, "-b") || !strcmp(arg, "--ignore-space-change"))
options->xdl_opts |= XDF_IGNORE_WHITESPACE_CHANGE;
else if (!strcmp(arg, "--ignore-space-at-eol"))
options->xdl_opts |= XDF_IGNORE_WHITESPACE_AT_EOL;
+
+ /* flags options */
+ else if (!strcmp(arg, "--binary")) {
+ options->output_format |= DIFF_FORMAT_PATCH;
+ DIFF_OPT_SET(options, BINARY);
+ }
+ else if (!strcmp(arg, "--full-index"))
+ DIFF_OPT_SET(options, FULL_INDEX);
+ else if (!strcmp(arg, "-a") || !strcmp(arg, "--text"))
+ DIFF_OPT_SET(options, TEXT);
+ else if (!strcmp(arg, "-R"))
+ DIFF_OPT_SET(options, REVERSE_DIFF);
+ else if (!strcmp(arg, "--find-copies-harder"))
+ DIFF_OPT_SET(options, FIND_COPIES_HARDER);
+ else if (!strcmp(arg, "--follow"))
+ DIFF_OPT_SET(options, FOLLOW_RENAMES);
+ else if (!strcmp(arg, "--color"))
+ DIFF_OPT_SET(options, COLOR_DIFF);
+ else if (!strcmp(arg, "--no-color"))
+ DIFF_OPT_CLR(options, COLOR_DIFF);
else if (!strcmp(arg, "--color-words"))
- options->color_diff = options->color_diff_words = 1;
- else if (!strcmp(arg, "--no-renames"))
- options->detect_rename = 0;
+ options->flags |= DIFF_OPT_COLOR_DIFF | DIFF_OPT_COLOR_DIFF_WORDS;
else if (!strcmp(arg, "--exit-code"))
- options->exit_with_status = 1;
+ DIFF_OPT_SET(options, EXIT_WITH_STATUS);
else if (!strcmp(arg, "--quiet"))
- options->quiet = 1;
+ DIFF_OPT_SET(options, QUIET);
else if (!strcmp(arg, "--ext-diff"))
- options->allow_external = 1;
+ DIFF_OPT_SET(options, ALLOW_EXTERNAL);
else if (!strcmp(arg, "--no-ext-diff"))
- options->allow_external = 0;
- else
+ DIFF_OPT_CLR(options, ALLOW_EXTERNAL);
+
+ /* misc options */
+ else if (!strcmp(arg, "-z"))
+ options->line_termination = 0;
+ else if (!prefixcmp(arg, "-l"))
+ options->rename_limit = strtoul(arg+2, NULL, 10);
+ else if (!prefixcmp(arg, "-S"))
+ options->pickaxe = arg + 2;
+ else if (!strcmp(arg, "--pickaxe-all"))
+ options->pickaxe_opts = DIFF_PICKAXE_ALL;
+ else if (!strcmp(arg, "--pickaxe-regex"))
+ options->pickaxe_opts = DIFF_PICKAXE_REGEX;
+ else if (!prefixcmp(arg, "-O"))
+ options->orderfile = arg + 2;
+ else if (!prefixcmp(arg, "--diff-filter="))
+ options->filter = arg + 14;
+ else if (!strcmp(arg, "--abbrev"))
+ options->abbrev = DEFAULT_ABBREV;
+ else if (!prefixcmp(arg, "--abbrev=")) {
+ options->abbrev = strtoul(arg + 9, NULL, 10);
+ if (options->abbrev < MINIMUM_ABBREV)
+ options->abbrev = MINIMUM_ABBREV;
+ else if (40 < options->abbrev)
+ options->abbrev = 40;
+ }
+ else if (!prefixcmp(arg, "--src-prefix="))
+ options->a_prefix = arg + 13;
+ else if (!prefixcmp(arg, "--dst-prefix="))
+ options->b_prefix = arg + 13;
+ else if (!strcmp(arg, "--no-prefix"))
+ options->a_prefix = options->b_prefix = "";
+ else if (!prefixcmp(arg, "--output=")) {
+ options->file = fopen(arg + strlen("--output="), "w");
+ options->close_file = 1;
+ } else
return 0;
return 1;
}
void diff_free_filepair(struct diff_filepair *p)
{
- diff_free_filespec_data(p->one);
- diff_free_filespec_data(p->two);
- free(p->one);
- free(p->two);
+ free_filespec(p->one);
+ free_filespec(p->two);
free(p);
}
return sha1_to_hex(sha1);
abbrev = find_unique_abbrev(sha1, len);
- if (!abbrev)
- return sha1_to_hex(sha1);
abblen = strlen(abbrev);
if (abblen < 37) {
static char hex[41];
return sha1_to_hex(sha1);
}
-static void diff_flush_raw(struct diff_filepair *p,
- struct diff_options *options)
+static void diff_flush_raw(struct diff_filepair *p, struct diff_options *opt)
{
- int two_paths;
- char status[10];
- int abbrev = options->abbrev;
- const char *path_one, *path_two;
- int inter_name_termination = '\t';
- int line_termination = options->line_termination;
-
- if (!line_termination)
- inter_name_termination = 0;
+ int line_termination = opt->line_termination;
+ int inter_name_termination = line_termination ? '\t' : '\0';
- path_one = p->one->path;
- path_two = p->two->path;
- if (line_termination) {
- path_one = quote_one(path_one);
- path_two = quote_one(path_two);
- }
-
- if (p->score)
- sprintf(status, "%c%03d", p->status, similarity_index(p));
- else {
- status[0] = p->status;
- status[1] = 0;
+ if (!(opt->output_format & DIFF_FORMAT_NAME_STATUS)) {
+ fprintf(opt->file, ":%06o %06o %s ", p->one->mode, p->two->mode,
+ diff_unique_abbrev(p->one->sha1, opt->abbrev));
+ fprintf(opt->file, "%s ", diff_unique_abbrev(p->two->sha1, opt->abbrev));
}
- switch (p->status) {
- case DIFF_STATUS_COPIED:
- case DIFF_STATUS_RENAMED:
- two_paths = 1;
- break;
- case DIFF_STATUS_ADDED:
- case DIFF_STATUS_DELETED:
- two_paths = 0;
- break;
- default:
- two_paths = 0;
- break;
- }
- if (!(options->output_format & DIFF_FORMAT_NAME_STATUS)) {
- printf(":%06o %06o %s ",
- p->one->mode, p->two->mode,
- diff_unique_abbrev(p->one->sha1, abbrev));
- printf("%s ",
- diff_unique_abbrev(p->two->sha1, abbrev));
+ if (p->score) {
+ fprintf(opt->file, "%c%03d%c", p->status, similarity_index(p),
+ inter_name_termination);
+ } else {
+ fprintf(opt->file, "%c%c", p->status, inter_name_termination);
}
- printf("%s%c%s", status, inter_name_termination,
- two_paths || p->one->mode ? path_one : path_two);
- if (two_paths)
- printf("%c%s", inter_name_termination, path_two);
- putchar(line_termination);
- if (path_one != p->one->path)
- free((void*)path_one);
- if (path_two != p->two->path)
- free((void*)path_two);
-}
-
-static void diff_flush_name(struct diff_filepair *p, struct diff_options *opt)
-{
- char *path = p->two->path;
- if (opt->line_termination)
- path = quote_one(p->two->path);
- printf("%s%c", path, opt->line_termination);
- if (p->two->path != path)
- free(path);
+ if (p->status == DIFF_STATUS_COPIED ||
+ p->status == DIFF_STATUS_RENAMED) {
+ const char *name_a, *name_b;
+ name_a = p->one->path;
+ name_b = p->two->path;
+ strip_prefix(opt->prefix_length, &name_a, &name_b);
+ write_name_quoted(name_a, opt->file, inter_name_termination);
+ write_name_quoted(name_b, opt->file, line_termination);
+ } else {
+ const char *name_a, *name_b;
+ name_a = p->one->mode ? p->one->path : p->two->path;
+ name_b = NULL;
+ strip_prefix(opt->prefix_length, &name_a, &name_b);
+ write_name_quoted(name_a, opt->file, line_termination);
+ }
}
int diff_unmodified_pair(struct diff_filepair *p)
* let transformers to produce diff_filepairs any way they want,
* and filter and clean them up here before producing the output.
*/
- struct diff_filespec *one, *two;
+ struct diff_filespec *one = p->one, *two = p->two;
if (DIFF_PAIR_UNMERGED(p))
return 0; /* unmerged is interesting */
- one = p->one;
- two = p->two;
-
/* deletion, addition, mode or type change
* and rename are all interesting.
*/
{
diff_debug_filespec(p->one, i, "one");
diff_debug_filespec(p->two, i, "two");
- fprintf(stderr, "score %d, status %c stays %d broken %d\n",
+ fprintf(stderr, "score %d, status %c rename_used %d broken %d\n",
p->score, p->status ? p->status : '?',
- p->source_stays, p->broken_pair);
+ p->one->rename_used, p->broken_pair);
}
void diff_debug_queue(const char *msg, struct diff_queue_struct *q)
static void diff_resolve_rename_copy(void)
{
- int i, j;
- struct diff_filepair *p, *pp;
+ int i;
+ struct diff_filepair *p;
struct diff_queue_struct *q = &diff_queued_diff;
diff_debug_queue("resolve-rename-copy", q);
* either in-place edit or rename/copy edit.
*/
else if (DIFF_PAIR_RENAME(p)) {
- if (p->source_stays) {
- p->status = DIFF_STATUS_COPIED;
- continue;
- }
- /* See if there is some other filepair that
- * copies from the same source as us. If so
- * we are a copy. Otherwise we are either a
- * copy if the path stays, or a rename if it
- * does not, but we already handled "stays" case.
+ /*
+ * A rename might have re-connected a broken
+ * pair up, causing the pathnames to be the
+ * same again. If so, that's not a rename at
+ * all, just a modification..
+ *
+ * Otherwise, see if this source was used for
+ * multiple renames, in which case we decrement
+ * the count, and call it a copy.
*/
- for (j = i + 1; j < q->nr; j++) {
- pp = q->queue[j];
- if (strcmp(pp->one->path, p->one->path))
- continue; /* not us */
- if (!DIFF_PAIR_RENAME(pp))
- continue; /* not a rename/copy */
- /* pp is a rename/copy from the same source */
+ if (!strcmp(p->one->path, p->two->path))
+ p->status = DIFF_STATUS_MODIFIED;
+ else if (--p->one->rename_used > 0)
p->status = DIFF_STATUS_COPIED;
- break;
- }
- if (!p->status)
+ else
p->status = DIFF_STATUS_RENAMED;
}
else if (hashcmp(p->one->sha1, p->two->sha1) ||
diff_flush_checkdiff(p, opt);
else if (fmt & (DIFF_FORMAT_RAW | DIFF_FORMAT_NAME_STATUS))
diff_flush_raw(p, opt);
- else if (fmt & DIFF_FORMAT_NAME)
- diff_flush_name(p, opt);
+ else if (fmt & DIFF_FORMAT_NAME) {
+ const char *name_a, *name_b;
+ name_a = p->two->path;
+ name_b = NULL;
+ strip_prefix(opt->prefix_length, &name_a, &name_b);
+ write_name_quoted(name_a, opt->file, opt->line_termination);
+ }
}
-static void show_file_mode_name(const char *newdelete, struct diff_filespec *fs)
+static void show_file_mode_name(FILE *file, const char *newdelete, struct diff_filespec *fs)
{
- char *name = quote_one(fs->path);
if (fs->mode)
- printf(" %s mode %06o %s\n", newdelete, fs->mode, name);
+ fprintf(file, " %s mode %06o ", newdelete, fs->mode);
else
- printf(" %s %s\n", newdelete, name);
- free(name);
+ fprintf(file, " %s ", newdelete);
+ write_name_quoted(fs->path, file, '\n');
}
-static void show_mode_change(struct diff_filepair *p, int show_name)
+static void show_mode_change(FILE *file, struct diff_filepair *p, int show_name)
{
if (p->one->mode && p->two->mode && p->one->mode != p->two->mode) {
+ fprintf(file, " mode change %06o => %06o%c", p->one->mode, p->two->mode,
+ show_name ? ' ' : '\n');
if (show_name) {
- char *name = quote_one(p->two->path);
- printf(" mode change %06o => %06o %s\n",
- p->one->mode, p->two->mode, name);
- free(name);
+ write_name_quoted(p->two->path, file, '\n');
}
- else
- printf(" mode change %06o => %06o\n",
- p->one->mode, p->two->mode);
}
}
-static void show_rename_copy(const char *renamecopy, struct diff_filepair *p)
+static void show_rename_copy(FILE *file, const char *renamecopy, struct diff_filepair *p)
{
char *names = pprint_rename(p->one->path, p->two->path);
- printf(" %s %s (%d%%)\n", renamecopy, names, similarity_index(p));
+ fprintf(file, " %s %s (%d%%)\n", renamecopy, names, similarity_index(p));
free(names);
- show_mode_change(p, 0);
+ show_mode_change(file, p, 0);
}
-static void diff_summary(struct diff_filepair *p)
+static void diff_summary(FILE *file, struct diff_filepair *p)
{
switch(p->status) {
case DIFF_STATUS_DELETED:
- show_file_mode_name("delete", p->one);
+ show_file_mode_name(file, "delete", p->one);
break;
case DIFF_STATUS_ADDED:
- show_file_mode_name("create", p->two);
+ show_file_mode_name(file, "create", p->two);
break;
case DIFF_STATUS_COPIED:
- show_rename_copy("copy", p);
+ show_rename_copy(file, "copy", p);
break;
case DIFF_STATUS_RENAMED:
- show_rename_copy("rename", p);
+ show_rename_copy(file, "rename", p);
break;
default:
if (p->score) {
- char *name = quote_one(p->two->path);
- printf(" rewrite %s (%d%%)\n", name,
- similarity_index(p));
- free(name);
- show_mode_change(p, 0);
- } else show_mode_change(p, 1);
+ fputs(" rewrite ", file);
+ write_name_quoted(p->two->path, file, ' ');
+ fprintf(file, "(%d%%)\n", similarity_index(p));
+ }
+ show_mode_change(file, p, !p->score);
break;
}
}
static int remove_space(char *line, int len)
{
int i;
- char *dst = line;
- unsigned char c;
+ char *dst = line;
+ unsigned char c;
- for (i = 0; i < len; i++)
- if (!isspace((c = line[i])))
- *dst++ = c;
+ for (i = 0; i < len; i++)
+ if (!isspace((c = line[i])))
+ *dst++ = c;
- return dst - line;
+ return dst - line;
}
static void patch_id_consume(void *priv, char *line, unsigned long len)
xecfg.flags = XDL_EMIT_FUNCNAMES;
ecb.outf = xdiff_outf;
ecb.priv = &data;
- xdl_diff(&mf1, &mf2, &xpp, &xecfg, &ecb);
+ xdi_diff(&mf1, &mf2, &xpp, &xecfg, &ecb);
}
SHA1_Final(sha1, &ctx);
show_numstat(&diffstat, options);
if (output_format & DIFF_FORMAT_DIFFSTAT)
show_stats(&diffstat, options);
- else if (output_format & DIFF_FORMAT_SHORTSTAT)
- show_shortstats(&diffstat);
+ if (output_format & DIFF_FORMAT_SHORTSTAT)
+ show_shortstats(&diffstat, options);
+ free_diffstat_info(&diffstat);
separator++;
}
+ if (output_format & DIFF_FORMAT_DIRSTAT)
+ show_dirstat(options);
if (output_format & DIFF_FORMAT_SUMMARY && !is_summary_empty(q)) {
for (i = 0; i < q->nr; i++)
- diff_summary(q->queue[i]);
+ diff_summary(options->file, q->queue[i]);
separator++;
}
if (separator) {
if (options->stat_sep) {
/* attach patch instead of inline */
- fputs(options->stat_sep, stdout);
+ fputs(options->stat_sep, options->file);
} else {
- putchar(options->line_termination);
+ putc(options->line_termination, options->file);
}
}
free(q->queue);
q->queue = NULL;
q->nr = q->alloc = 0;
+ if (options->close_file)
+ fclose(options->file);
}
static void diffcore_apply_filter(const char *filter)
static int diff_filespec_is_identical(struct diff_filespec *one,
struct diff_filespec *two)
{
- if (S_ISGITLINK(one->mode)) {
- diff_fill_sha1_info(one);
- diff_fill_sha1_info(two);
- return !hashcmp(one->sha1, two->sha1);
- }
+ if (S_ISGITLINK(one->mode))
+ return 0;
if (diff_populate_filespec(one, 0))
return 0;
if (diff_populate_filespec(two, 0))
* to determine how many paths were dirty only
* due to stat info mismatch.
*/
- if (!diffopt->no_index)
+ if (!DIFF_OPT_TST(diffopt, NO_INDEX))
diffopt->skip_stat_unmatch++;
diff_free_filepair(p);
}
void diffcore_std(struct diff_options *options)
{
- if (options->quiet)
+ if (DIFF_OPT_TST(options, QUIET))
return;
- if (options->skip_stat_unmatch && !options->find_copies_harder)
+ if (options->skip_stat_unmatch && !DIFF_OPT_TST(options, FIND_COPIES_HARDER))
diffcore_skip_stat_unmatch(options);
if (options->break_opt != -1)
diffcore_break(options->break_opt);
diff_resolve_rename_copy();
diffcore_apply_filter(options->filter);
- options->has_changes = !!diff_queued_diff.nr;
+ if (diff_queued_diff.nr)
+ DIFF_OPT_SET(options, HAS_CHANGES);
+ else
+ DIFF_OPT_CLR(options, HAS_CHANGES);
}
+int diff_result_code(struct diff_options *opt, int status)
+{
+ int result = 0;
+ if (!DIFF_OPT_TST(opt, EXIT_WITH_STATUS) &&
+ !(opt->output_format & DIFF_FORMAT_CHECKDIFF))
+ return status;
+ if (DIFF_OPT_TST(opt, EXIT_WITH_STATUS) &&
+ DIFF_OPT_TST(opt, HAS_CHANGES))
+ result |= 01;
+ if ((opt->output_format & DIFF_FORMAT_CHECKDIFF) &&
+ DIFF_OPT_TST(opt, CHECK_FAILED))
+ result |= 02;
+ return result;
+}
void diff_addremove(struct diff_options *options,
int addremove, unsigned mode,
* Before the final output happens, they are pruned after
* merged into rename/copy pairs as appropriate.
*/
- if (options->reverse_diff)
+ if (DIFF_OPT_TST(options, REVERSE_DIFF))
addremove = (addremove == '+' ? '-' :
addremove == '-' ? '+' : addremove);
if (!path) path = "";
sprintf(concatpath, "%s%s", base, path);
+
+ if (options->prefix &&
+ strncmp(concatpath, options->prefix, options->prefix_length))
+ return;
+
one = alloc_filespec(concatpath);
two = alloc_filespec(concatpath);
fill_filespec(two, sha1, mode);
diff_queue(&diff_queued_diff, one, two);
- options->has_changes = 1;
+ DIFF_OPT_SET(options, HAS_CHANGES);
}
void diff_change(struct diff_options *options,
char concatpath[PATH_MAX];
struct diff_filespec *one, *two;
- if (options->reverse_diff) {
+ if (DIFF_OPT_TST(options, REVERSE_DIFF)) {
unsigned tmp;
const unsigned char *tmp_c;
tmp = old_mode; old_mode = new_mode; new_mode = tmp;
}
if (!path) path = "";
sprintf(concatpath, "%s%s", base, path);
+
+ if (options->prefix &&
+ strncmp(concatpath, options->prefix, options->prefix_length))
+ return;
+
one = alloc_filespec(concatpath);
two = alloc_filespec(concatpath);
fill_filespec(one, old_sha1, old_mode);
fill_filespec(two, new_sha1, new_mode);
diff_queue(&diff_queued_diff, one, two);
- options->has_changes = 1;
+ DIFF_OPT_SET(options, HAS_CHANGES);
}
void diff_unmerge(struct diff_options *options,
unsigned mode, const unsigned char *sha1)
{
struct diff_filespec *one, *two;
+
+ if (options->prefix &&
+ strncmp(path, options->prefix, options->prefix_length))
+ return;
+
one = alloc_filespec(path);
two = alloc_filespec(path);
fill_filespec(one, sha1, mode);