summaryrefslogtreecommitdiff
path: root/diff.c
diff options
context:
space:
mode:
Diffstat (limited to 'diff.c')
-rw-r--r--diff.c217
1 files changed, 132 insertions, 85 deletions
diff --git a/diff.c b/diff.c
index e9d0e38123..4c59f5f5d3 100644
--- a/diff.c
+++ b/diff.c
@@ -1504,7 +1504,7 @@ struct diff_words_style_elem {
struct diff_words_style {
enum diff_words_type type;
- struct diff_words_style_elem new, old, ctx;
+ struct diff_words_style_elem new_word, old_word, ctx;
const char *newline;
};
@@ -1655,12 +1655,12 @@ static void fn_out_diff_words_aux(void *priv, char *line, unsigned long len)
}
if (minus_begin != minus_end) {
fn_out_diff_words_write_helper(diff_words->opt,
- &style->old, style->newline,
+ &style->old_word, style->newline,
minus_end - minus_begin, minus_begin);
}
if (plus_begin != plus_end) {
fn_out_diff_words_write_helper(diff_words->opt,
- &style->new, style->newline,
+ &style->new_word, style->newline,
plus_end - plus_begin, plus_begin);
}
@@ -1758,7 +1758,7 @@ static void diff_words_show(struct diff_words_data *diff_words)
emit_diff_symbol(diff_words->opt, DIFF_SYMBOL_WORD_DIFF,
line_prefix, strlen(line_prefix), 0);
fn_out_diff_words_write_helper(diff_words->opt,
- &style->old, style->newline,
+ &style->old_word, style->newline,
diff_words->minus.text.size,
diff_words->minus.text.ptr);
diff_words->minus.text.size = 0;
@@ -1883,8 +1883,8 @@ static void init_diff_words_data(struct emit_callback *ecbdata,
}
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->old_word.color = diff_get_color_opt(o, DIFF_FILE_OLD);
+ st->new_word.color = diff_get_color_opt(o, DIFF_FILE_NEW);
st->ctx.color = diff_get_color_opt(o, DIFF_CONTEXT);
}
}
@@ -2045,11 +2045,10 @@ static void fn_out_consume(void *priv, char *line, unsigned long len)
}
}
-static char *pprint_rename(const char *a, const char *b)
+static void pprint_rename(struct strbuf *name, const char *a, const char *b)
{
- const char *old = a;
- const char *new = b;
- struct strbuf name = STRBUF_INIT;
+ const char *old_name = a;
+ const char *new_name = b;
int pfx_length, sfx_length;
int pfx_adjust_for_slash;
int len_a = strlen(a);
@@ -2059,24 +2058,24 @@ static char *pprint_rename(const char *a, const char *b)
int qlen_b = quote_c_style(b, NULL, NULL, 0);
if (qlen_a || qlen_b) {
- quote_c_style(a, &name, NULL, 0);
- strbuf_addstr(&name, " => ");
- quote_c_style(b, &name, NULL, 0);
- return strbuf_detach(&name, NULL);
+ quote_c_style(a, name, NULL, 0);
+ strbuf_addstr(name, " => ");
+ quote_c_style(b, name, NULL, 0);
+ return;
}
/* Find common prefix */
pfx_length = 0;
- while (*old && *new && *old == *new) {
- if (*old == '/')
- pfx_length = old - a + 1;
- old++;
- new++;
+ while (*old_name && *new_name && *old_name == *new_name) {
+ if (*old_name == '/')
+ pfx_length = old_name - a + 1;
+ old_name++;
+ new_name++;
}
/* Find common suffix */
- old = a + len_a;
- new = b + len_b;
+ old_name = a + len_a;
+ new_name = b + len_b;
sfx_length = 0;
/*
* If there is a common prefix, it must end in a slash. In
@@ -2087,13 +2086,13 @@ static char *pprint_rename(const char *a, const char *b)
* underrun the input strings.
*/
pfx_adjust_for_slash = (pfx_length ? 1 : 0);
- while (a + pfx_length - pfx_adjust_for_slash <= old &&
- b + pfx_length - pfx_adjust_for_slash <= new &&
- *old == *new) {
- if (*old == '/')
- sfx_length = len_a - (old - a);
- old--;
- new--;
+ while (a + pfx_length - pfx_adjust_for_slash <= old_name &&
+ b + pfx_length - pfx_adjust_for_slash <= new_name &&
+ *old_name == *new_name) {
+ if (*old_name == '/')
+ sfx_length = len_a - (old_name - a);
+ old_name--;
+ new_name--;
}
/*
@@ -2109,19 +2108,18 @@ static char *pprint_rename(const char *a, const char *b)
if (b_midlen < 0)
b_midlen = 0;
- strbuf_grow(&name, pfx_length + a_midlen + b_midlen + sfx_length + 7);
+ strbuf_grow(name, pfx_length + a_midlen + b_midlen + sfx_length + 7);
if (pfx_length + sfx_length) {
- strbuf_add(&name, a, pfx_length);
- strbuf_addch(&name, '{');
+ strbuf_add(name, a, pfx_length);
+ strbuf_addch(name, '{');
}
- strbuf_add(&name, a + pfx_length, a_midlen);
- strbuf_addstr(&name, " => ");
- strbuf_add(&name, b + pfx_length, b_midlen);
+ 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);
+ strbuf_addch(name, '}');
+ strbuf_add(name, a + len_a - sfx_length, sfx_length);
}
- return strbuf_detach(&name, NULL);
}
struct diffstat_t {
@@ -2131,6 +2129,7 @@ struct diffstat_t {
char *from_name;
char *name;
char *print_name;
+ const char *comments;
unsigned is_unmerged:1;
unsigned is_binary:1;
unsigned is_renamed:1;
@@ -2197,23 +2196,20 @@ static void show_graph(struct strbuf *out, char ch, int cnt,
static void fill_print_name(struct diffstat_file *file)
{
- char *pname;
+ struct strbuf pname = STRBUF_INIT;
if (file->print_name)
return;
- if (!file->is_renamed) {
- struct strbuf buf = STRBUF_INIT;
- 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;
+ if (file->is_renamed)
+ pprint_rename(&pname, file->from_name, file->name);
+ else
+ quote_c_style(file->name, &pname, NULL, 0);
+
+ if (file->comments)
+ strbuf_addf(&pname, " (%s)", file->comments);
+
+ file->print_name = strbuf_detach(&pname, NULL);
}
static void print_stat_summary_inserts_deletes(struct diff_options *options,
@@ -2594,14 +2590,14 @@ struct dirstat_dir {
static long gather_dirstat(struct diff_options *opt, struct dirstat_dir *dir,
unsigned long changed, const char *base, int baselen)
{
- unsigned long this_dir = 0;
+ unsigned long sum_changes = 0;
unsigned int sources = 0;
const char *line_prefix = diff_line_prefix(opt);
while (dir->nr) {
struct dirstat_file *f = dir->files;
int namelen = strlen(f->name);
- unsigned long this;
+ unsigned long changes;
char *slash;
if (namelen < baselen)
@@ -2611,15 +2607,15 @@ static long gather_dirstat(struct diff_options *opt, struct dirstat_dir *dir,
slash = strchr(f->name + baselen, '/');
if (slash) {
int newbaselen = slash + 1 - f->name;
- this = gather_dirstat(opt, dir, changed, f->name, newbaselen);
+ changes = gather_dirstat(opt, dir, changed, f->name, newbaselen);
sources++;
} else {
- this = f->changed;
+ changes = f->changed;
dir->files++;
dir->nr--;
sources += 2;
}
- this_dir += this;
+ sum_changes += changes;
}
/*
@@ -2629,8 +2625,8 @@ static long gather_dirstat(struct diff_options *opt, struct dirstat_dir *dir,
* under this directory (sources == 1).
*/
if (baselen && sources != 1) {
- if (this_dir) {
- int permille = this_dir * 1000 / changed;
+ if (sum_changes) {
+ int permille = sum_changes * 1000 / changed;
if (permille >= dir->permille) {
fprintf(opt->file, "%s%4d.%01d%% %.*s\n", line_prefix,
permille / 10, permille % 10, baselen, base);
@@ -2639,7 +2635,7 @@ static long gather_dirstat(struct diff_options *opt, struct dirstat_dir *dir,
}
}
}
- return this_dir;
+ return sum_changes;
}
static int dirstat_compare(const void *_a, const void *_b)
@@ -2797,8 +2793,7 @@ 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->print_name);
free(f->name);
free(f->from_name);
free(f);
@@ -3248,6 +3243,32 @@ static void builtin_diff(const char *name_a,
return;
}
+static char *get_compact_summary(const struct diff_filepair *p, int is_renamed)
+{
+ if (!is_renamed) {
+ if (p->status == DIFF_STATUS_ADDED) {
+ if (S_ISLNK(p->two->mode))
+ return "new +l";
+ else if ((p->two->mode & 0777) == 0755)
+ return "new +x";
+ else
+ return "new";
+ } else if (p->status == DIFF_STATUS_DELETED)
+ return "gone";
+ }
+ if (S_ISLNK(p->one->mode) && !S_ISLNK(p->two->mode))
+ return "mode -l";
+ else if (!S_ISLNK(p->one->mode) && S_ISLNK(p->two->mode))
+ return "mode +l";
+ else if ((p->one->mode & 0777) == 0644 &&
+ (p->two->mode & 0777) == 0755)
+ return "mode +x";
+ else if ((p->one->mode & 0777) == 0755 &&
+ (p->two->mode & 0777) == 0644)
+ return "mode -x";
+ return NULL;
+}
+
static void builtin_diffstat(const char *name_a, const char *name_b,
struct diff_filespec *one,
struct diff_filespec *two,
@@ -3267,6 +3288,8 @@ static void builtin_diffstat(const char *name_a, const char *name_b,
data = diffstat_add(diffstat, name_a, name_b);
data->is_interesting = p->status != DIFF_STATUS_UNKNOWN;
+ if (o->flags.stat_with_summary)
+ data->comments = get_compact_summary(p, data->is_renamed);
if (!one || !two) {
data->is_unmerged = 1;
@@ -3520,13 +3543,13 @@ int diff_populate_filespec(struct diff_filespec *s, unsigned int flags)
{
int size_only = flags & CHECK_SIZE_ONLY;
int err = 0;
+ int conv_flags = global_conv_flags_eol;
/*
* demote FAIL to WARN to allow inspecting the situation
* instead of refusing.
*/
- enum safe_crlf crlf_warn = (safe_crlf == SAFE_CRLF_FAIL
- ? SAFE_CRLF_WARN
- : safe_crlf);
+ if (conv_flags & CONV_EOL_RNDTRP_DIE)
+ conv_flags = CONV_EOL_RNDTRP_WARN;
if (!DIFF_FILE_VALID(s))
die("internal error: asking to populate invalid file.");
@@ -3603,7 +3626,7 @@ int diff_populate_filespec(struct diff_filespec *s, unsigned int flags)
/*
* Convert from working tree format to canonical git format
*/
- if (convert_to_git(&the_index, s->path, s->data, s->size, &buf, crlf_warn)) {
+ if (convert_to_git(&the_index, s->path, s->data, s->size, &buf, conv_flags)) {
size_t size = 0;
munmap(s->data, s->size);
s->should_munmap = 0;
@@ -3660,15 +3683,15 @@ static void prep_temp_blob(const char *path, struct diff_tempfile *temp,
int mode)
{
struct strbuf buf = STRBUF_INIT;
- struct strbuf template = STRBUF_INIT;
+ struct strbuf tempfile = STRBUF_INIT;
char *path_dup = xstrdup(path);
const char *base = basename(path_dup);
/* Generate "XXXXXX_basename.ext" */
- strbuf_addstr(&template, "XXXXXX_");
- strbuf_addstr(&template, base);
+ strbuf_addstr(&tempfile, "XXXXXX_");
+ strbuf_addstr(&tempfile, base);
- temp->tempfile = mks_tempfile_ts(template.buf, strlen(base) + 1);
+ temp->tempfile = mks_tempfile_ts(tempfile.buf, strlen(base) + 1);
if (!temp->tempfile)
die_errno("unable to create temp-file");
if (convert_to_working_tree(path,
@@ -3683,7 +3706,7 @@ static void prep_temp_blob(const char *path, struct diff_tempfile *temp,
oid_to_hex_r(temp->hex, oid);
xsnprintf(temp->mode, sizeof(temp->mode), "%06o", mode);
strbuf_release(&buf);
- strbuf_release(&template);
+ strbuf_release(&tempfile);
free(path_dup);
}
@@ -4086,6 +4109,7 @@ void diff_setup(struct diff_options *options)
options->interhunkcontext = diff_interhunk_context_default;
options->ws_error_highlight = ws_error_highlight_default;
options->flags.rename_empty = 1;
+ options->objfind = NULL;
/* pathchange left =NULL by default */
options->change = diff_change;
@@ -4110,22 +4134,20 @@ void diff_setup(struct diff_options *options)
void diff_setup_done(struct diff_options *options)
{
- int count = 0;
+ unsigned check_mask = DIFF_FORMAT_NAME |
+ DIFF_FORMAT_NAME_STATUS |
+ DIFF_FORMAT_CHECKDIFF |
+ DIFF_FORMAT_NO_OUTPUT;
if (options->set_default)
options->set_default(options);
- if (options->output_format & DIFF_FORMAT_NAME)
- count++;
- if (options->output_format & DIFF_FORMAT_NAME_STATUS)
- count++;
- if (options->output_format & DIFF_FORMAT_CHECKDIFF)
- count++;
- if (options->output_format & DIFF_FORMAT_NO_OUTPUT)
- count++;
- if (count > 1)
+ if (HAS_MULTI_BITS(options->output_format & check_mask))
die(_("--name-only, --name-status, --check and -s are mutually exclusive"));
+ if (HAS_MULTI_BITS(options->pickaxe_opts & DIFF_PICKAXE_KINDS_MASK))
+ die(_("-G, -S and --find-object are mutually exclusive"));
+
/*
* Most of the time we can say "there are changes"
* only by checking if there are changed paths, but
@@ -4175,7 +4197,7 @@ void diff_setup_done(struct diff_options *options)
/*
* Also pickaxe would not work very well if you do not say recursive
*/
- if (options->pickaxe)
+ if (options->pickaxe_opts & DIFF_PICKAXE_KINDS_MASK)
options->flags.recursive = 1;
/*
* When patches are generated, submodules diffed against the work tree
@@ -4489,6 +4511,23 @@ static int parse_ws_error_highlight_opt(struct diff_options *opt, const char *ar
return 1;
}
+static int parse_objfind_opt(struct diff_options *opt, const char *arg)
+{
+ struct object_id oid;
+
+ if (get_oid(arg, &oid))
+ return error("unable to resolve '%s'", arg);
+
+ if (!opt->objfind)
+ opt->objfind = xcalloc(1, sizeof(*opt->objfind));
+
+ opt->pickaxe_opts |= DIFF_PICKAXE_KIND_OBJFIND;
+ opt->flags.recursive = 1;
+ opt->flags.tree_in_recursive = 1;
+ oidset_insert(opt->objfind, &oid);
+ return 1;
+}
+
int diff_opt_parse(struct diff_options *options,
const char **av, int ac, const char *prefix)
{
@@ -4537,6 +4576,11 @@ int diff_opt_parse(struct diff_options *options,
else if (starts_with(arg, "--stat"))
/* --stat, --stat-width, --stat-name-width, or --stat-count */
return stat_opt(options, av);
+ else if (!strcmp(arg, "--compact-summary")) {
+ options->flags.stat_with_summary = 1;
+ options->output_format |= DIFF_FORMAT_DIFFSTAT;
+ } else if (!strcmp(arg, "--no-compact-summary"))
+ options->flags.stat_with_summary = 0;
/* renames options */
else if (starts_with(arg, "-B") ||
@@ -4736,7 +4780,8 @@ int diff_opt_parse(struct diff_options *options,
else if ((argcount = short_opt('O', av, &optarg))) {
options->orderfile = prefix_filename(prefix, optarg);
return argcount;
- }
+ } else if (skip_prefix(arg, "--find-object=", &arg))
+ return parse_objfind_opt(options, arg);
else if ((argcount = parse_long_opt("diff-filter", av, &optarg))) {
int offending = parse_diff_filter_opt(optarg, options);
if (offending)
@@ -5224,10 +5269,12 @@ static void show_rename_copy(struct diff_options *opt, const char *renamecopy,
struct diff_filepair *p)
{
struct strbuf sb = STRBUF_INIT;
- char *names = pprint_rename(p->one->path, p->two->path);
+ struct strbuf names = STRBUF_INIT;
+
+ pprint_rename(&names, p->one->path, p->two->path);
strbuf_addf(&sb, " %s %s (%d%%)\n",
- renamecopy, names, similarity_index(p));
- free(names);
+ renamecopy, names.buf, similarity_index(p));
+ strbuf_release(&names);
emit_diff_symbol(opt, DIFF_SYMBOL_SUMMARY,
sb.buf, sb.len, 0);
show_mode_change(opt, p, 0);
@@ -5784,7 +5831,7 @@ void diffcore_std(struct diff_options *options)
if (options->break_opt != -1)
diffcore_merge_broken();
}
- if (options->pickaxe)
+ if (options->pickaxe_opts & DIFF_PICKAXE_KINDS_MASK)
diffcore_pickaxe(options);
if (options->orderfile)
diffcore_order(options->orderfile);