int diff_auto_refresh_index = 1;
static int diff_mnemonic_prefix;
static int diff_no_prefix;
+static int diff_stat_graph_width;
static int diff_dirstat_permille_default = 30;
static struct diff_options default_diff_options;
diff_no_prefix = git_config_bool(var, value);
return 0;
}
+ if (!strcmp(var, "diff.statgraphwidth")) {
+ diff_stat_graph_width = git_config_int(var, value);
+ return 0;
+ }
if (!strcmp(var, "diff.external"))
return git_config_string(&external_diff_cmd_cfg, var, value);
if (!strcmp(var, "diff.wordregex"))
return 0;
}
- switch (userdiff_config(var, value)) {
- case 0: break;
- case -1: return -1;
- default: return 0;
- }
+ if (userdiff_config(var, value) < 0)
+ return -1;
if (!prefixcmp(var, "diff.color.") || !prefixcmp(var, "color.diff.")) {
int slot = parse_diff_color_slot(var, 11);
diff_words_show(ecbdata->diff_words);
}
+static void diff_filespec_load_driver(struct diff_filespec *one)
+{
+ /* Use already-loaded driver */
+ if (one->driver)
+ return;
+
+ if (S_ISREG(one->mode))
+ one->driver = userdiff_find_by_path(one->path);
+
+ /* Fallback to default settings */
+ if (!one->driver)
+ one->driver = userdiff_find_by_name("default");
+}
+
+static const char *userdiff_word_regex(struct diff_filespec *one)
+{
+ diff_filespec_load_driver(one);
+ return one->driver->word_regex;
+}
+
+static void init_diff_words_data(struct emit_callback *ecbdata,
+ struct diff_options *orig_opts,
+ struct diff_filespec *one,
+ struct diff_filespec *two)
+{
+ int i;
+ struct diff_options *o = xmalloc(sizeof(struct diff_options));
+ memcpy(o, orig_opts, sizeof(struct diff_options));
+
+ ecbdata->diff_words =
+ xcalloc(1, sizeof(struct diff_words_data));
+ ecbdata->diff_words->type = o->word_diff;
+ ecbdata->diff_words->opt = o;
+ if (!o->word_regex)
+ o->word_regex = userdiff_word_regex(one);
+ if (!o->word_regex)
+ o->word_regex = userdiff_word_regex(two);
+ if (!o->word_regex)
+ o->word_regex = diff_word_regex_cfg;
+ if (o->word_regex) {
+ ecbdata->diff_words->word_regex = (regex_t *)
+ xmalloc(sizeof(regex_t));
+ if (regcomp(ecbdata->diff_words->word_regex,
+ o->word_regex,
+ REG_EXTENDED | REG_NEWLINE))
+ die ("Invalid regular expression: %s",
+ o->word_regex);
+ }
+ for (i = 0; i < ARRAY_SIZE(diff_words_styles); i++) {
+ if (o->word_diff == diff_words_styles[i].type) {
+ ecbdata->diff_words->style =
+ &diff_words_styles[i];
+ break;
+ }
+ }
+ if (want_color(o->use_color)) {
+ struct diff_words_style *st = ecbdata->diff_words->style;
+ st->old.color = diff_get_color_opt(o, DIFF_FILE_OLD);
+ st->new.color = diff_get_color_opt(o, DIFF_FILE_NEW);
+ st->ctx.color = diff_get_color_opt(o, DIFF_PLAIN);
+ }
+}
+
static void free_diff_words_data(struct emit_callback *ecbdata)
{
if (ecbdata->diff_words) {
diff_words_flush(ecbdata);
+ free (ecbdata->diff_words->opt);
free (ecbdata->diff_words->minus.text.ptr);
free (ecbdata->diff_words->minus.orig);
free (ecbdata->diff_words->plus.text.ptr);
static int scale_linear(int it, int width, int max_change)
{
+ if (!it)
+ return 0;
/*
- * make sure that at least one '-' is printed if there were deletions,
- * and likewise for '+'.
+ * make sure that at least one '-' or '+' is printed if
+ * there is any change to this path. The easiest way is to
+ * scale linearly as if the alloted width is one column shorter
+ * than it is, and then add 1 to the result.
*/
- if (max_change < 2)
- return it;
- return ((it - 1) * (width - 1) + max_change - 1) / (max_change - 1);
+ return 1 + (it * (width - 1) / max_change);
}
static void show_name(FILE *file,
if (!files) {
assert(insertions == 0 && deletions == 0);
- return fputs(_(" 0 files changed\n"), fp);
+ return fprintf(fp, "%s\n", _(" 0 files changed"));
}
strbuf_addf(&sb,
{
int i, len, add, del, adds = 0, dels = 0;
uintmax_t max_change = 0, max_len = 0;
- int total_files = data->nr;
- int width, name_width, count;
+ int total_files = data->nr, count;
+ int width, name_width, graph_width, number_width = 0, bin_width = 0;
const char *reset, *add_c, *del_c;
const char *line_prefix = "";
int extra_shown = 0;
line_prefix = msg->buf;
}
- width = options->stat_width ? options->stat_width : 80;
- name_width = options->stat_name_width ? options->stat_name_width : 50;
count = options->stat_count ? options->stat_count : data->nr;
- /* Sanity: give at least 5 columns to the graph,
- * but leave at least 10 columns for the name.
- */
- if (width < 25)
- width = 25;
- if (name_width < 10)
- name_width = 10;
- else if (width < name_width + 15)
- name_width = width - 15;
-
- /* Find the longest filename and max number of changes */
reset = diff_get_color_opt(options, DIFF_RESET);
add_c = diff_get_color_opt(options, DIFF_FILE_NEW);
del_c = diff_get_color_opt(options, DIFF_FILE_OLD);
+ /*
+ * Find the longest filename and max number of changes
+ */
for (i = 0; (i < count) && (i < data->nr); i++) {
struct diffstat_file *file = data->files[i];
uintmax_t change = file->added + file->deleted;
if (max_len < len)
max_len = len;
- if (file->is_binary || file->is_unmerged)
+ if (file->is_unmerged) {
+ /* "Unmerged" is 8 characters */
+ bin_width = bin_width < 8 ? 8 : bin_width;
+ continue;
+ }
+ if (file->is_binary) {
+ /* "Bin XXX -> YYY bytes" */
+ int w = 14 + decimal_width(file->added)
+ + decimal_width(file->deleted);
+ bin_width = bin_width < w ? w : bin_width;
+ /* Display change counts aligned with "Bin" */
+ number_width = 3;
continue;
+ }
+
if (max_change < change)
max_change = change;
}
count = i; /* min(count, data->nr) */
- /* 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.
+ /*
+ * We have width = stat_width or term_columns() columns total.
+ * We want a maximum of min(max_len, stat_name_width) for the name part.
+ * We want a maximum of min(max_change, stat_graph_width) for the +- part.
+ * We also need 1 for " " and 4 + decimal_width(max_change)
+ * for " | NNNN " and one the empty column at the end, altogether
+ * 6 + decimal_width(max_change).
+ *
+ * If there's not enough space, we will use the smaller of
+ * stat_name_width (if set) and 5/8*width for the filename,
+ * and the rest for constant elements + graph part, but no more
+ * than stat_graph_width for the graph part.
+ * (5/8 gives 50 for filename and 30 for the constant parts + graph
+ * for the standard terminal size).
*
- * From here on, name_width is the width of the name area,
- * and width is the width of the graph area.
+ * In other words: stat_width limits the maximum width, and
+ * stat_name_width fixes the maximum width of the filename,
+ * and is also used to divide available columns if there
+ * aren't enough.
+ *
+ * Binary files are displayed with "Bin XXX -> YYY bytes"
+ * instead of the change count and graph. This part is treated
+ * similarly to the graph part, except that it is not
+ * "scaled". If total width is too small to accomodate the
+ * guaranteed minimum width of the filename part and the
+ * separators and this message, this message will "overflow"
+ * making the line longer than the maximum width.
*/
- name_width = (name_width < max_len) ? name_width : max_len;
- if (width < (name_width + 10) + max_change)
- width = width - (name_width + 10);
+
+ if (options->stat_width == -1)
+ width = term_columns() - options->output_prefix_length;
else
- width = max_change;
+ width = options->stat_width ? options->stat_width : 80;
+ number_width = decimal_width(max_change) > number_width ?
+ decimal_width(max_change) : number_width;
+ if (options->stat_graph_width == -1)
+ options->stat_graph_width = diff_stat_graph_width;
+
+ /*
+ * Guarantee 3/8*16==6 for the graph part
+ * and 5/8*16==10 for the filename part
+ */
+ if (width < 16 + 6 + number_width)
+ width = 16 + 6 + number_width;
+
+ /*
+ * First assign sizes that are wanted, ignoring available width.
+ * strlen("Bin XXX -> YYY bytes") == bin_width, and the part
+ * starting from "XXX" should fit in graph_width.
+ */
+ graph_width = max_change + 4 > bin_width ? max_change : bin_width - 4;
+ if (options->stat_graph_width &&
+ options->stat_graph_width < graph_width)
+ graph_width = options->stat_graph_width;
+
+ name_width = (options->stat_name_width > 0 &&
+ options->stat_name_width < max_len) ?
+ options->stat_name_width : max_len;
+
+ /*
+ * Adjust adjustable widths not to exceed maximum width
+ */
+ if (name_width + number_width + 6 + graph_width > width) {
+ if (graph_width > width * 3/8 - number_width - 6) {
+ graph_width = width * 3/8 - number_width - 6;
+ if (graph_width < 6)
+ graph_width = 6;
+ }
+
+ if (options->stat_graph_width &&
+ graph_width > options->stat_graph_width)
+ graph_width = options->stat_graph_width;
+ if (name_width > width - number_width - 6 - graph_width)
+ name_width = width - number_width - 6 - graph_width;
+ else
+ graph_width = width - number_width - 6 - name_width;
+ }
+
+ /*
+ * From here name_width is the width of the name area,
+ * and graph_width is the width of the graph area.
+ * max_change is used to scale graph properly.
+ */
for (i = 0; i < count; i++) {
const char *prefix = "";
char *name = data->files[i]->print_name;
if (data->files[i]->is_binary) {
fprintf(options->file, "%s", line_prefix);
show_name(options->file, prefix, name, len);
- fprintf(options->file, " Bin ");
- fprintf(options->file, "%s%"PRIuMAX"%s",
+ fprintf(options->file, " %*s", number_width, "Bin");
+ if (!added && !deleted) {
+ putc('\n', options->file);
+ continue;
+ }
+ fprintf(options->file, " %s%"PRIuMAX"%s",
del_c, deleted, reset);
fprintf(options->file, " -> ");
fprintf(options->file, "%s%"PRIuMAX"%s",
else if (data->files[i]->is_unmerged) {
fprintf(options->file, "%s", line_prefix);
show_name(options->file, prefix, name, len);
- fprintf(options->file, " Unmerged\n");
+ fprintf(options->file, " Unmerged\n");
continue;
}
adds += add;
dels += del;
- if (width <= max_change) {
- add = scale_linear(add, width, max_change);
- del = scale_linear(del, width, max_change);
+ if (graph_width <= max_change) {
+ int total = add + del;
+
+ total = scale_linear(add + del, graph_width, max_change);
+ if (total < 2 && add && del)
+ /* width >= 2 due to the sanity check */
+ total = 2;
+ if (add < del) {
+ add = scale_linear(add, graph_width, max_change);
+ del = total - add;
+ } else {
+ del = scale_linear(del, graph_width, max_change);
+ add = total - del;
+ }
}
fprintf(options->file, "%s", line_prefix);
show_name(options->file, prefix, name, len);
- fprintf(options->file, "%5"PRIuMAX"%s", added + deleted,
- added + deleted ? " " : "");
+ fprintf(options->file, " %*"PRIuMAX"%s",
+ number_width, added + deleted,
+ added + deleted ? " " : "");
show_graph(options->file, '+', add, add_c, reset);
show_graph(options->file, '-', del, del_c, reset);
fprintf(options->file, "\n");
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;
- }
+ int added = data->files[i]->added;
+ int deleted= data->files[i]->deleted;
+
+ if (data->files[i]->is_unmerged)
+ continue;
+ if (!data->files[i]->is_renamed && (added + deleted == 0)) {
+ total_files--;
+ } else if (!data->files[i]->is_binary) { /* don't count bytes */
+ adds += added;
+ dels += deleted;
}
}
if (options->output_prefix) {
emit_binary_diff_body(file, two, one, prefix);
}
-static void diff_filespec_load_driver(struct diff_filespec *one)
-{
- /* Use already-loaded driver */
- if (one->driver)
- return;
-
- if (S_ISREG(one->mode))
- one->driver = userdiff_find_by_path(one->path);
-
- /* Fallback to default settings */
- if (!one->driver)
- one->driver = userdiff_find_by_name("default");
-}
-
int diff_filespec_is_binary(struct diff_filespec *one)
{
if (one->is_binary == -1) {
return one->driver->funcname.pattern ? &one->driver->funcname : NULL;
}
-static const char *userdiff_word_regex(struct diff_filespec *one)
-{
- diff_filespec_load_driver(one);
- return one->driver->word_regex;
-}
-
void diff_set_mnemonic_prefix(struct diff_options *options, const char *a, const char *b)
{
if (!options->a_prefix)
struct emit_callback ecbdata;
const struct userdiff_funcname *pe;
- if (!DIFF_XDL_TST(o, WHITESPACE_FLAGS) || must_show_header) {
+ if (must_show_header) {
fprintf(o->file, "%s", header.buf);
strbuf_reset(&header);
}
xecfg.ctxlen = strtoul(diffopts + 10, NULL, 10);
else if (!prefixcmp(diffopts, "-u"))
xecfg.ctxlen = strtoul(diffopts + 2, NULL, 10);
- if (o->word_diff) {
- int i;
-
- ecbdata.diff_words =
- xcalloc(1, sizeof(struct diff_words_data));
- ecbdata.diff_words->type = o->word_diff;
- ecbdata.diff_words->opt = o;
- if (!o->word_regex)
- o->word_regex = userdiff_word_regex(one);
- if (!o->word_regex)
- o->word_regex = userdiff_word_regex(two);
- if (!o->word_regex)
- o->word_regex = diff_word_regex_cfg;
- if (o->word_regex) {
- ecbdata.diff_words->word_regex = (regex_t *)
- xmalloc(sizeof(regex_t));
- if (regcomp(ecbdata.diff_words->word_regex,
- o->word_regex,
- REG_EXTENDED | REG_NEWLINE))
- die ("Invalid regular expression: %s",
- o->word_regex);
- }
- for (i = 0; i < ARRAY_SIZE(diff_words_styles); i++) {
- if (o->word_diff == diff_words_styles[i].type) {
- ecbdata.diff_words->style =
- &diff_words_styles[i];
- break;
- }
- }
- if (want_color(o->use_color)) {
- struct diff_words_style *st = ecbdata.diff_words->style;
- st->old.color = diff_get_color_opt(o, DIFF_FILE_OLD);
- st->new.color = diff_get_color_opt(o, DIFF_FILE_NEW);
- st->ctx.color = diff_get_color_opt(o, DIFF_PLAIN);
- }
- }
+ if (o->word_diff)
+ init_diff_words_data(&ecbdata, o, one, two);
xdi_diff_outf(&mf1, &mf2, fn_out_consume, &ecbdata,
&xpp, &xecfg);
if (o->word_diff)
{
mmfile_t mf1, mf2;
struct diffstat_file *data;
+ int same_contents;
data = diffstat_add(diffstat, name_a, name_b);
return;
}
+ same_contents = !hashcmp(one->sha1, two->sha1);
+
if (diff_filespec_is_binary(one) || diff_filespec_is_binary(two)) {
data->is_binary = 1;
- data->added = diff_filespec_size(two);
- data->deleted = diff_filespec_size(one);
+ if (same_contents) {
+ data->added = 0;
+ data->deleted = 0;
+ } else {
+ data->added = diff_filespec_size(two);
+ data->deleted = diff_filespec_size(one);
+ }
}
else if (complete_rewrite) {
data->added = count_lines(two->data, two->size);
}
- else {
+ else if (!same_contents) {
/* Crazy xdl interfaces.. */
xpparam_t xpp;
xdemitconf_t xecfg;
return 0;
}
-static int populate_from_stdin(struct diff_filespec *s)
-{
- struct strbuf buf = STRBUF_INIT;
- size_t size = 0;
-
- if (strbuf_read(&buf, 0, 0) < 0)
- return error("error while reading from stdin %s",
- strerror(errno));
-
- s->should_munmap = 0;
- s->data = strbuf_detach(&buf, &size);
- s->size = size;
- s->should_free = 1;
- return 0;
-}
-
static int diff_populate_gitlink(struct diff_filespec *s, int size_only)
{
int len;
struct stat st;
int fd;
- if (!strcmp(s->path, "-"))
- return populate_from_stdin(s);
-
if (lstat(s->path, &st) < 0) {
if (errno == ENOENT) {
err_empty:
int complete_rewrite = (p->status == DIFF_STATUS_MODIFIED) && p->score;
int must_show_header = 0;
- if (!DIFF_OPT_TST(o, ALLOW_EXTERNAL))
- pgm = NULL;
- else {
+
+ if (DIFF_OPT_TST(o, ALLOW_EXTERNAL)) {
struct userdiff_driver *drv = userdiff_find_by_path(attr_path);
if (drv && drv->external)
pgm = drv->external;
if (DIFF_FILE_VALID(one)) {
if (!one->sha1_valid) {
struct stat st;
- if (!strcmp(one->path, "-")) {
+ if (one->is_stdin) {
hashcpy(one->sha1, null_sha1);
return;
}
if (o->prefix_length)
strip_prefix(o->prefix_length, &name, &other);
+ if (!DIFF_OPT_TST(o, ALLOW_EXTERNAL))
+ pgm = NULL;
+
if (DIFF_PAIR_UNMERGED(p)) {
run_diff_cmd(pgm, name, NULL, attr_path,
NULL, NULL, NULL, o, p);
options->rename_limit = -1;
options->dirstat_permille = diff_dirstat_permille_default;
options->context = 3;
+ DIFF_OPT_SET(options, RENAME_EMPTY);
options->change = diff_change;
options->add_remove = diff_addremove;
char *end;
int width = options->stat_width;
int name_width = options->stat_name_width;
+ int graph_width = options->stat_graph_width;
int count = options->stat_count;
int argcount = 1;
name_width = strtoul(av[1], &end, 10);
argcount = 2;
}
+ } else if (!prefixcmp(arg, "-graph-width")) {
+ arg += strlen("-graph-width");
+ if (*arg == '=')
+ graph_width = strtoul(arg + 1, &end, 10);
+ else if (!*arg && !av[1])
+ die("Option '--stat-graph-width' requires a value");
+ else if (!*arg) {
+ graph_width = strtoul(av[1], &end, 10);
+ argcount = 2;
+ }
} else if (!prefixcmp(arg, "-count")) {
arg += strlen("-count");
if (*arg == '=')
return 0;
options->output_format |= DIFF_FORMAT_DIFFSTAT;
options->stat_name_width = name_width;
+ options->stat_graph_width = graph_width;
options->stat_width = width;
options->stat_count = count;
return argcount;
}
else if (!strcmp(arg, "--no-renames"))
options->detect_rename = 0;
+ else if (!strcmp(arg, "--rename-empty"))
+ DIFF_OPT_SET(options, RENAME_EMPTY);
+ else if (!strcmp(arg, "--no-rename-empty"))
+ DIFF_OPT_CLR(options, RENAME_EMPTY);
else if (!strcmp(arg, "--relative"))
DIFF_OPT_SET(options, RELATIVE_NAME);
else if (!prefixcmp(arg, "--relative=")) {
else if (!strcmp(arg, "--ignore-space-at-eol"))
DIFF_XDL_SET(options, IGNORE_WHITESPACE_AT_EOL);
else if (!strcmp(arg, "--patience"))
- DIFF_XDL_SET(options, PATIENCE_DIFF);
+ options->xdl_opts = DIFF_WITH_ALG(options, PATIENCE_DIFF);
else if (!strcmp(arg, "--histogram"))
- DIFF_XDL_SET(options, HISTOGRAM_DIFF);
+ options->xdl_opts = DIFF_WITH_ALG(options, HISTOGRAM_DIFF);
/* flags options */
else if (!strcmp(arg, "--binary")) {
if (output_format & DIFF_FORMAT_PATCH) {
if (separator) {
+ if (options->output_prefix) {
+ struct strbuf *msg = NULL;
+ msg = options->output_prefix(options,
+ options->output_prefix_data);
+ fwrite(msg->buf, msg->len, 1, stdout);
+ }
putc(options->line_termination, options->file);
if (options->stat_sep) {
/* attach patch instead of inline */