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Diffstat (limited to 'diff.c')
-rw-r--r--diff.c179
1 files changed, 137 insertions, 42 deletions
diff --git a/diff.c b/diff.c
index 208094f6b7..a04a34d048 100644
--- a/diff.c
+++ b/diff.c
@@ -669,7 +669,7 @@ static void emit_rewrite_diff(const char *name_a,
memset(&ecbdata, 0, sizeof(ecbdata));
ecbdata.color_diff = want_color(o->use_color);
ecbdata.found_changesp = &o->found_changes;
- ecbdata.ws_rule = whitespace_rule(name_b ? name_b : name_a);
+ ecbdata.ws_rule = whitespace_rule(name_b);
ecbdata.opt = o;
if (ecbdata.ws_rule & WS_BLANK_AT_EOF) {
mmfile_t mf1, mf2;
@@ -1683,9 +1683,7 @@ static void show_stats(struct diffstat_t *data, struct diff_options *options)
del = deleted;
if (graph_width <= max_change) {
- int total = add + del;
-
- total = scale_linear(add + del, graph_width, max_change);
+ int total = scale_linear(add + del, graph_width, max_change);
if (total < 2 && add && del)
/* width >= 2 due to the sanity check */
total = 2;
@@ -2254,7 +2252,7 @@ static void builtin_diff(const char *name_a,
(!two->mode || S_ISGITLINK(two->mode))) {
const char *del = diff_get_color_opt(o, DIFF_FILE_OLD);
const char *add = diff_get_color_opt(o, DIFF_FILE_NEW);
- show_submodule_summary(o->file, one ? one->path : two->path,
+ show_submodule_summary(o->file, one->path ? one->path : two->path,
line_prefix,
one->sha1, two->sha1, two->dirty_submodule,
meta, del, add, reset);
@@ -2374,7 +2372,7 @@ static void builtin_diff(const char *name_a,
ecbdata.label_path = lbl;
ecbdata.color_diff = want_color(o->use_color);
ecbdata.found_changesp = &o->found_changes;
- ecbdata.ws_rule = whitespace_rule(name_b ? name_b : name_a);
+ ecbdata.ws_rule = whitespace_rule(name_b);
if (ecbdata.ws_rule & WS_BLANK_AT_EOF)
check_blank_at_eof(&mf1, &mf2, &ecbdata);
ecbdata.opt = o;
@@ -2586,7 +2584,7 @@ void fill_filespec(struct diff_filespec *spec, const unsigned char *sha1,
*/
static int reuse_worktree_file(const char *name, const unsigned char *sha1, int want_file)
{
- struct cache_entry *ce;
+ const struct cache_entry *ce;
struct stat st;
int pos, len;
@@ -2677,6 +2675,14 @@ static int diff_populate_gitlink(struct diff_filespec *s, int size_only)
int diff_populate_filespec(struct diff_filespec *s, int size_only)
{
int err = 0;
+ /*
+ * 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 (!DIFF_FILE_VALID(s))
die("internal error: asking to populate invalid file.");
if (S_ISDIR(s->mode))
@@ -2732,7 +2738,7 @@ int diff_populate_filespec(struct diff_filespec *s, int size_only)
/*
* Convert from working tree format to canonical git format
*/
- if (convert_to_git(s->path, s->data, s->size, &buf, safe_crlf)) {
+ if (convert_to_git(s->path, s->data, s->size, &buf, crlf_warn)) {
size_t size = 0;
munmap(s->data, s->size);
s->should_munmap = 0;
@@ -3497,6 +3503,93 @@ static int parse_submodule_opt(struct diff_options *options, const char *value)
return 1;
}
+static const char diff_status_letters[] = {
+ DIFF_STATUS_ADDED,
+ DIFF_STATUS_COPIED,
+ DIFF_STATUS_DELETED,
+ DIFF_STATUS_MODIFIED,
+ DIFF_STATUS_RENAMED,
+ DIFF_STATUS_TYPE_CHANGED,
+ DIFF_STATUS_UNKNOWN,
+ DIFF_STATUS_UNMERGED,
+ DIFF_STATUS_FILTER_AON,
+ DIFF_STATUS_FILTER_BROKEN,
+ '\0',
+};
+
+static unsigned int filter_bit['Z' + 1];
+
+static void prepare_filter_bits(void)
+{
+ int i;
+
+ if (!filter_bit[DIFF_STATUS_ADDED]) {
+ for (i = 0; diff_status_letters[i]; i++)
+ filter_bit[(int) diff_status_letters[i]] = (1 << i);
+ }
+}
+
+static unsigned filter_bit_tst(char status, const struct diff_options *opt)
+{
+ return opt->filter & filter_bit[(int) status];
+}
+
+static int parse_diff_filter_opt(const char *optarg, struct diff_options *opt)
+{
+ int i, optch;
+
+ prepare_filter_bits();
+
+ /*
+ * If there is a negation e.g. 'd' in the input, and we haven't
+ * initialized the filter field with another --diff-filter, start
+ * from full set of bits, except for AON.
+ */
+ if (!opt->filter) {
+ for (i = 0; (optch = optarg[i]) != '\0'; i++) {
+ if (optch < 'a' || 'z' < optch)
+ continue;
+ opt->filter = (1 << (ARRAY_SIZE(diff_status_letters) - 1)) - 1;
+ opt->filter &= ~filter_bit[DIFF_STATUS_FILTER_AON];
+ break;
+ }
+ }
+
+ for (i = 0; (optch = optarg[i]) != '\0'; i++) {
+ unsigned int bit;
+ int negate;
+
+ if ('a' <= optch && optch <= 'z') {
+ negate = 1;
+ optch = toupper(optch);
+ } else {
+ negate = 0;
+ }
+
+ bit = (0 <= optch && optch <= 'Z') ? filter_bit[optch] : 0;
+ if (!bit)
+ return optarg[i];
+ if (negate)
+ opt->filter &= ~bit;
+ else
+ opt->filter |= bit;
+ }
+ return 0;
+}
+
+/* Used only by "diff-files" and "diff --no-index" */
+void handle_deprecated_show_diff_q(struct diff_options *opt)
+{
+ warning("'diff -q' and 'diff-files -q' are deprecated.");
+ warning("Use 'diff --diff-filter=d' instead to ignore deleted filepairs.");
+ parse_diff_filter_opt("d", opt);
+}
+
+static void enable_patch_output(int *fmt) {
+ *fmt &= ~DIFF_FORMAT_NO_OUTPUT;
+ *fmt |= DIFF_FORMAT_PATCH;
+}
+
int diff_opt_parse(struct diff_options *options, const char **av, int ac)
{
const char *arg = av[0];
@@ -3504,15 +3597,15 @@ int diff_opt_parse(struct diff_options *options, const char **av, int ac)
int argcount;
/* Output format options */
- if (!strcmp(arg, "-p") || !strcmp(arg, "-u") || !strcmp(arg, "--patch"))
- options->output_format |= DIFF_FORMAT_PATCH;
- else if (opt_arg(arg, 'U', "unified", &options->context))
- options->output_format |= DIFF_FORMAT_PATCH;
+ if (!strcmp(arg, "-p") || !strcmp(arg, "-u") || !strcmp(arg, "--patch")
+ || opt_arg(arg, 'U', "unified", &options->context))
+ enable_patch_output(&options->output_format);
else if (!strcmp(arg, "--raw"))
options->output_format |= DIFF_FORMAT_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, "--patch-with-raw")) {
+ enable_patch_output(&options->output_format);
+ options->output_format |= DIFF_FORMAT_RAW;
+ } else if (!strcmp(arg, "--numstat"))
options->output_format |= DIFF_FORMAT_NUMSTAT;
else if (!strcmp(arg, "--shortstat"))
options->output_format |= DIFF_FORMAT_SHORTSTAT;
@@ -3534,13 +3627,14 @@ int diff_opt_parse(struct diff_options *options, const char **av, int ac)
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"))
+ else if (!strcmp(arg, "--patch-with-stat")) {
+ enable_patch_output(&options->output_format);
+ options->output_format |= 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"))
+ else if (!strcmp(arg, "-s") || !strcmp(arg, "--no-patch"))
options->output_format |= DIFF_FORMAT_NO_OUTPUT;
else if (!prefixcmp(arg, "--stat"))
/* --stat, --stat-width, --stat-name-width, or --stat-count */
@@ -3613,7 +3707,7 @@ int diff_opt_parse(struct diff_options *options, const char **av, int ac)
/* flags options */
else if (!strcmp(arg, "--binary")) {
- options->output_format |= DIFF_FORMAT_PATCH;
+ enable_patch_output(&options->output_format);
DIFF_OPT_SET(options, BINARY);
}
else if (!strcmp(arg, "--full-index"))
@@ -3720,7 +3814,10 @@ int diff_opt_parse(struct diff_options *options, const char **av, int ac)
return argcount;
}
else if ((argcount = parse_long_opt("diff-filter", av, &optarg))) {
- options->filter = optarg;
+ int offending = parse_diff_filter_opt(optarg, options);
+ if (offending)
+ die("unknown change class '%c' in --diff-filter=%s",
+ offending, optarg);
return argcount;
}
else if (!strcmp(arg, "--abbrev"))
@@ -4452,7 +4549,7 @@ void diff_flush(struct diff_options *options)
DIFF_OPT_TST(options, DIFF_FROM_CONTENTS)) {
/*
* run diff_flush_patch for the exit status. setting
- * options->file to /dev/null should be safe, becaue we
+ * options->file to /dev/null should be safe, because we
* aren't supposed to produce any output anyway.
*/
if (options->close_file)
@@ -4512,27 +4609,32 @@ free_queue:
}
}
-static void diffcore_apply_filter(const char *filter)
+static int match_filter(const struct diff_options *options, const struct diff_filepair *p)
+{
+ return (((p->status == DIFF_STATUS_MODIFIED) &&
+ ((p->score &&
+ filter_bit_tst(DIFF_STATUS_FILTER_BROKEN, options)) ||
+ (!p->score &&
+ filter_bit_tst(DIFF_STATUS_MODIFIED, options)))) ||
+ ((p->status != DIFF_STATUS_MODIFIED) &&
+ filter_bit_tst(p->status, options)));
+}
+
+static void diffcore_apply_filter(struct diff_options *options)
{
int i;
struct diff_queue_struct *q = &diff_queued_diff;
struct diff_queue_struct outq;
+
DIFF_QUEUE_CLEAR(&outq);
- if (!filter)
+ if (!options->filter)
return;
- if (strchr(filter, DIFF_STATUS_FILTER_AON)) {
+ if (filter_bit_tst(DIFF_STATUS_FILTER_AON, options)) {
int found;
for (i = found = 0; !found && i < q->nr; i++) {
- struct diff_filepair *p = q->queue[i];
- if (((p->status == DIFF_STATUS_MODIFIED) &&
- ((p->score &&
- strchr(filter, DIFF_STATUS_FILTER_BROKEN)) ||
- (!p->score &&
- strchr(filter, DIFF_STATUS_MODIFIED)))) ||
- ((p->status != DIFF_STATUS_MODIFIED) &&
- strchr(filter, p->status)))
+ if (match_filter(options, q->queue[i]))
found++;
}
if (found)
@@ -4550,14 +4652,7 @@ static void diffcore_apply_filter(const char *filter)
/* Only the matching ones */
for (i = 0; i < q->nr; i++) {
struct diff_filepair *p = q->queue[i];
-
- if (((p->status == DIFF_STATUS_MODIFIED) &&
- ((p->score &&
- strchr(filter, DIFF_STATUS_FILTER_BROKEN)) ||
- (!p->score &&
- strchr(filter, DIFF_STATUS_MODIFIED)))) ||
- ((p->status != DIFF_STATUS_MODIFIED) &&
- strchr(filter, p->status)))
+ if (match_filter(options, p))
diff_q(&outq, p);
else
diff_free_filepair(p);
@@ -4664,7 +4759,7 @@ void diffcore_std(struct diff_options *options)
if (!options->found_follow)
/* See try_to_follow_renames() in tree-diff.c */
diff_resolve_rename_copy();
- diffcore_apply_filter(options->filter);
+ diffcore_apply_filter(options);
if (diff_queued_diff.nr && !DIFF_OPT_TST(options, DIFF_FROM_CONTENTS))
DIFF_OPT_SET(options, HAS_CHANGES);
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-01 18:15:35 +0000