summaryrefslogtreecommitdiff
path: root/diff.c
diff options
context:
space:
mode:
Diffstat (limited to 'diff.c')
-rw-r--r--diff.c1007
1 files changed, 721 insertions, 286 deletions
diff --git a/diff.c b/diff.c
index 43835d756c..502b301670 100644
--- a/diff.c
+++ b/diff.c
@@ -13,6 +13,8 @@
#include "utf8.h"
#include "userdiff.h"
#include "sigchain.h"
+#include "submodule.h"
+#include "ll-merge.h"
#ifdef NO_FAST_WORKING_DIRECTORY
#define FAST_WORKING_DIRECTORY 0
@@ -38,10 +40,12 @@ static char diff_colors[][COLOR_MAXLEN] = {
GIT_COLOR_GREEN, /* NEW */
GIT_COLOR_YELLOW, /* COMMIT */
GIT_COLOR_BG_RED, /* WHITESPACE */
+ GIT_COLOR_NORMAL, /* FUNCINFO */
};
static void diff_filespec_load_driver(struct diff_filespec *one);
-static char *run_textconv(const char *, struct diff_filespec *, size_t *);
+static size_t fill_textconv(struct userdiff_driver *driver,
+ struct diff_filespec *df, char **outbuf);
static int parse_diff_color_slot(const char *var, int ofs)
{
@@ -59,7 +63,9 @@ static int parse_diff_color_slot(const char *var, int ofs)
return DIFF_COMMIT;
if (!strcasecmp(var+ofs, "whitespace"))
return DIFF_WHITESPACE;
- die("bad config variable '%s'", var);
+ if (!strcasecmp(var+ofs, "func"))
+ return DIFF_FUNCINFO;
+ return -1;
}
static int git_config_rename(const char *var, const char *value)
@@ -118,6 +124,8 @@ int git_diff_basic_config(const char *var, const char *value, void *cb)
if (!prefixcmp(var, "diff.color.") || !prefixcmp(var, "color.diff.")) {
int slot = parse_diff_color_slot(var, 11);
+ if (slot < 0)
+ return 0;
if (!value)
return config_error_nonbool(var);
color_parse(value, var, diff_colors[slot]);
@@ -174,6 +182,213 @@ static struct diff_tempfile {
char tmp_path[PATH_MAX];
} diff_temp[2];
+typedef unsigned long (*sane_truncate_fn)(char *line, unsigned long len);
+
+struct emit_callback {
+ int color_diff;
+ unsigned ws_rule;
+ int blank_at_eof_in_preimage;
+ int blank_at_eof_in_postimage;
+ int lno_in_preimage;
+ int lno_in_postimage;
+ sane_truncate_fn truncate;
+ const char **label_path;
+ struct diff_words_data *diff_words;
+ int *found_changesp;
+ FILE *file;
+ struct strbuf *header;
+};
+
+static int count_lines(const char *data, int size)
+{
+ int count, ch, completely_empty = 1, nl_just_seen = 0;
+ count = 0;
+ while (0 < size--) {
+ ch = *data++;
+ if (ch == '\n') {
+ count++;
+ nl_just_seen = 1;
+ completely_empty = 0;
+ }
+ else {
+ nl_just_seen = 0;
+ completely_empty = 0;
+ }
+ }
+ if (completely_empty)
+ return 0;
+ if (!nl_just_seen)
+ count++; /* no trailing newline */
+ return count;
+}
+
+static int fill_mmfile(mmfile_t *mf, struct diff_filespec *one)
+{
+ if (!DIFF_FILE_VALID(one)) {
+ mf->ptr = (char *)""; /* does not matter */
+ mf->size = 0;
+ return 0;
+ }
+ else if (diff_populate_filespec(one, 0))
+ return -1;
+
+ mf->ptr = one->data;
+ mf->size = one->size;
+ return 0;
+}
+
+static int count_trailing_blank(mmfile_t *mf, unsigned ws_rule)
+{
+ char *ptr = mf->ptr;
+ long size = mf->size;
+ int cnt = 0;
+
+ if (!size)
+ return cnt;
+ ptr += size - 1; /* pointing at the very end */
+ if (*ptr != '\n')
+ ; /* incomplete line */
+ else
+ ptr--; /* skip the last LF */
+ while (mf->ptr < ptr) {
+ char *prev_eol;
+ for (prev_eol = ptr; mf->ptr <= prev_eol; prev_eol--)
+ if (*prev_eol == '\n')
+ break;
+ if (!ws_blank_line(prev_eol + 1, ptr - prev_eol, ws_rule))
+ break;
+ cnt++;
+ ptr = prev_eol - 1;
+ }
+ return cnt;
+}
+
+static void check_blank_at_eof(mmfile_t *mf1, mmfile_t *mf2,
+ struct emit_callback *ecbdata)
+{
+ int l1, l2, at;
+ unsigned ws_rule = ecbdata->ws_rule;
+ l1 = count_trailing_blank(mf1, ws_rule);
+ l2 = count_trailing_blank(mf2, ws_rule);
+ if (l2 <= l1) {
+ ecbdata->blank_at_eof_in_preimage = 0;
+ ecbdata->blank_at_eof_in_postimage = 0;
+ return;
+ }
+ at = count_lines(mf1->ptr, mf1->size);
+ ecbdata->blank_at_eof_in_preimage = (at - l1) + 1;
+
+ at = count_lines(mf2->ptr, mf2->size);
+ ecbdata->blank_at_eof_in_postimage = (at - l2) + 1;
+}
+
+static void emit_line_0(FILE *file, const char *set, const char *reset,
+ int first, const char *line, int len)
+{
+ int has_trailing_newline, has_trailing_carriage_return;
+ int nofirst;
+
+ if (len == 0) {
+ has_trailing_newline = (first == '\n');
+ has_trailing_carriage_return = (!has_trailing_newline &&
+ (first == '\r'));
+ nofirst = has_trailing_newline || has_trailing_carriage_return;
+ } else {
+ has_trailing_newline = (len > 0 && line[len-1] == '\n');
+ if (has_trailing_newline)
+ len--;
+ has_trailing_carriage_return = (len > 0 && line[len-1] == '\r');
+ if (has_trailing_carriage_return)
+ len--;
+ nofirst = 0;
+ }
+
+ if (len || !nofirst) {
+ fputs(set, file);
+ if (!nofirst)
+ fputc(first, file);
+ fwrite(line, len, 1, file);
+ fputs(reset, file);
+ }
+ if (has_trailing_carriage_return)
+ fputc('\r', file);
+ if (has_trailing_newline)
+ fputc('\n', file);
+}
+
+static void emit_line(FILE *file, const char *set, const char *reset,
+ const char *line, int len)
+{
+ emit_line_0(file, set, reset, line[0], line+1, len-1);
+}
+
+static int new_blank_line_at_eof(struct emit_callback *ecbdata, const char *line, int len)
+{
+ if (!((ecbdata->ws_rule & WS_BLANK_AT_EOF) &&
+ ecbdata->blank_at_eof_in_preimage &&
+ ecbdata->blank_at_eof_in_postimage &&
+ ecbdata->blank_at_eof_in_preimage <= ecbdata->lno_in_preimage &&
+ ecbdata->blank_at_eof_in_postimage <= ecbdata->lno_in_postimage))
+ return 0;
+ return ws_blank_line(line, len, ecbdata->ws_rule);
+}
+
+static void emit_add_line(const char *reset,
+ struct emit_callback *ecbdata,
+ const char *line, int len)
+{
+ const char *ws = diff_get_color(ecbdata->color_diff, DIFF_WHITESPACE);
+ const char *set = diff_get_color(ecbdata->color_diff, DIFF_FILE_NEW);
+
+ if (!*ws)
+ emit_line_0(ecbdata->file, set, reset, '+', line, len);
+ else if (new_blank_line_at_eof(ecbdata, line, len))
+ /* Blank line at EOF - paint '+' as well */
+ emit_line_0(ecbdata->file, ws, reset, '+', line, len);
+ else {
+ /* Emit just the prefix, then the rest. */
+ emit_line_0(ecbdata->file, set, reset, '+', "", 0);
+ ws_check_emit(line, len, ecbdata->ws_rule,
+ ecbdata->file, set, reset, ws);
+ }
+}
+
+static void emit_hunk_header(struct emit_callback *ecbdata,
+ const char *line, int len)
+{
+ const char *plain = diff_get_color(ecbdata->color_diff, DIFF_PLAIN);
+ const char *frag = diff_get_color(ecbdata->color_diff, DIFF_FRAGINFO);
+ const char *func = diff_get_color(ecbdata->color_diff, DIFF_FUNCINFO);
+ const char *reset = diff_get_color(ecbdata->color_diff, DIFF_RESET);
+ static const char atat[2] = { '@', '@' };
+ const char *cp, *ep;
+
+ /*
+ * As a hunk header must begin with "@@ -<old>, +<new> @@",
+ * it always is at least 10 bytes long.
+ */
+ if (len < 10 ||
+ memcmp(line, atat, 2) ||
+ !(ep = memmem(line + 2, len - 2, atat, 2))) {
+ emit_line(ecbdata->file, plain, reset, line, len);
+ return;
+ }
+ ep += 2; /* skip over @@ */
+
+ /* The hunk header in fraginfo color */
+ emit_line(ecbdata->file, frag, reset, line, ep - line);
+
+ /* blank before the func header */
+ for (cp = ep; ep - line < len; ep++)
+ if (*ep != ' ' && *ep != '\t')
+ break;
+ if (ep != cp)
+ emit_line(ecbdata->file, plain, reset, cp, ep - cp);
+
+ if (ep < line + len)
+ emit_line(ecbdata->file, func, reset, ep, line + len - ep);
+}
+
static struct diff_tempfile *claim_diff_tempfile(void) {
int i;
for (i = 0; i < ARRAY_SIZE(diff_temp); i++)
@@ -201,29 +416,6 @@ static void remove_tempfile_on_signal(int signo)
raise(signo);
}
-static int count_lines(const char *data, int size)
-{
- int count, ch, completely_empty = 1, nl_just_seen = 0;
- count = 0;
- while (0 < size--) {
- ch = *data++;
- if (ch == '\n') {
- count++;
- nl_just_seen = 1;
- completely_empty = 0;
- }
- else {
- nl_just_seen = 0;
- completely_empty = 0;
- }
- }
- if (completely_empty)
- return 0;
- if (!nl_just_seen)
- count++; /* no trailing newline */
- return count;
-}
-
static void print_line_count(FILE *file, int count)
{
switch (count) {
@@ -239,34 +431,44 @@ static void print_line_count(FILE *file, int count)
}
}
-static void copy_file_with_prefix(FILE *file,
- int prefix, const char *data, int size,
- const char *set, const char *reset)
+static void emit_rewrite_lines(struct emit_callback *ecb,
+ int prefix, const char *data, int size)
{
- int ch, nl_just_seen = 1;
- while (0 < size--) {
- ch = *data++;
- if (nl_just_seen) {
- fputs(set, file);
- putc(prefix, file);
+ const char *endp = NULL;
+ static const char *nneof = " No newline at end of file\n";
+ const char *old = diff_get_color(ecb->color_diff, DIFF_FILE_OLD);
+ const char *reset = diff_get_color(ecb->color_diff, DIFF_RESET);
+
+ while (0 < size) {
+ int len;
+
+ endp = memchr(data, '\n', size);
+ len = endp ? (endp - data + 1) : size;
+ if (prefix != '+') {
+ ecb->lno_in_preimage++;
+ emit_line_0(ecb->file, old, reset, '-',
+ data, len);
+ } else {
+ ecb->lno_in_postimage++;
+ emit_add_line(reset, ecb, data, len);
}
- if (ch == '\n') {
- nl_just_seen = 1;
- fputs(reset, file);
- } else
- nl_just_seen = 0;
- putc(ch, file);
+ size -= len;
+ data += len;
+ }
+ if (!endp) {
+ const char *plain = diff_get_color(ecb->color_diff,
+ DIFF_PLAIN);
+ emit_line_0(ecb->file, plain, reset, '\\',
+ nneof, strlen(nneof));
}
- if (!nl_just_seen)
- 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,
- const char *textconv_one,
- const char *textconv_two,
+ struct userdiff_driver *textconv_one,
+ struct userdiff_driver *textconv_two,
struct diff_options *o)
{
int lc_a, lc_b;
@@ -274,13 +476,12 @@ static void emit_rewrite_diff(const char *name_a,
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;
const char *a_prefix, *b_prefix;
- const char *data_one, *data_two;
+ char *data_one, *data_two;
size_t size_one, size_two;
+ struct emit_callback ecbdata;
if (diff_mnemonic_prefix && DIFF_OPT_TST(o, REVERSE_DIFF)) {
a_prefix = o->b_prefix;
@@ -300,26 +501,24 @@ static void emit_rewrite_diff(const char *name_a,
quote_two_c_style(&a_name, a_prefix, name_a, 0);
quote_two_c_style(&b_name, b_prefix, name_b, 0);
- diff_populate_filespec(one, 0);
- diff_populate_filespec(two, 0);
- if (textconv_one) {
- data_one = run_textconv(textconv_one, one, &size_one);
- if (!data_one)
- die("unable to read files to diff");
- }
- else {
- data_one = one->data;
- size_one = one->size;
- }
- if (textconv_two) {
- data_two = run_textconv(textconv_two, two, &size_two);
- if (!data_two)
- die("unable to read files to diff");
- }
- else {
- data_two = two->data;
- size_two = two->size;
+ size_one = fill_textconv(textconv_one, one, &data_one);
+ size_two = fill_textconv(textconv_two, two, &data_two);
+
+ memset(&ecbdata, 0, sizeof(ecbdata));
+ ecbdata.color_diff = color_diff;
+ ecbdata.found_changesp = &o->found_changes;
+ ecbdata.ws_rule = whitespace_rule(name_b ? name_b : name_a);
+ ecbdata.file = o->file;
+ if (ecbdata.ws_rule & WS_BLANK_AT_EOF) {
+ mmfile_t mf1, mf2;
+ mf1.ptr = (char *)data_one;
+ mf2.ptr = (char *)data_two;
+ mf1.size = size_one;
+ mf2.size = size_two;
+ check_blank_at_eof(&mf1, &mf2, &ecbdata);
}
+ ecbdata.lno_in_preimage = 1;
+ ecbdata.lno_in_postimage = 1;
lc_a = count_lines(data_one, size_one);
lc_b = count_lines(data_two, size_two);
@@ -332,24 +531,13 @@ static void emit_rewrite_diff(const char *name_a,
print_line_count(o->file, lc_b);
fprintf(o->file, " @@%s\n", reset);
if (lc_a)
- copy_file_with_prefix(o->file, '-', data_one, size_one, old, reset);
+ emit_rewrite_lines(&ecbdata, '-', data_one, size_one);
if (lc_b)
- copy_file_with_prefix(o->file, '+', data_two, size_two, new, reset);
-}
-
-static int fill_mmfile(mmfile_t *mf, struct diff_filespec *one)
-{
- if (!DIFF_FILE_VALID(one)) {
- mf->ptr = (char *)""; /* does not matter */
- mf->size = 0;
- return 0;
- }
- else if (diff_populate_filespec(one, 0))
- return -1;
-
- mf->ptr = one->data;
- mf->size = one->size;
- return 0;
+ emit_rewrite_lines(&ecbdata, '+', data_two, size_two);
+ if (textconv_one)
+ free((char *)data_one);
+ if (textconv_two)
+ free((char *)data_two);
}
struct diff_words_buffer {
@@ -372,16 +560,68 @@ static void diff_words_append(char *line, unsigned long len,
buffer->text.ptr[buffer->text.size] = '\0';
}
+struct diff_words_style_elem
+{
+ const char *prefix;
+ const char *suffix;
+ const char *color; /* NULL; filled in by the setup code if
+ * color is enabled */
+};
+
+struct diff_words_style
+{
+ enum diff_words_type type;
+ struct diff_words_style_elem new, old, ctx;
+ const char *newline;
+};
+
+struct diff_words_style diff_words_styles[] = {
+ { DIFF_WORDS_PORCELAIN, {"+", "\n"}, {"-", "\n"}, {" ", "\n"}, "~\n" },
+ { DIFF_WORDS_PLAIN, {"{+", "+}"}, {"[-", "-]"}, {"", ""}, "\n" },
+ { DIFF_WORDS_COLOR, {"", ""}, {"", ""}, {"", ""}, "\n" }
+};
+
struct diff_words_data {
struct diff_words_buffer minus, plus;
const char *current_plus;
FILE *file;
regex_t *word_regex;
+ enum diff_words_type type;
+ struct diff_words_style *style;
};
+static int fn_out_diff_words_write_helper(FILE *fp,
+ struct diff_words_style_elem *st_el,
+ const char *newline,
+ size_t count, const char *buf)
+{
+ while (count) {
+ char *p = memchr(buf, '\n', count);
+ if (p != buf) {
+ if (st_el->color && fputs(st_el->color, fp) < 0)
+ return -1;
+ if (fputs(st_el->prefix, fp) < 0 ||
+ fwrite(buf, p ? p - buf : count, 1, fp) != 1 ||
+ fputs(st_el->suffix, fp) < 0)
+ return -1;
+ if (st_el->color && *st_el->color
+ && fputs(GIT_COLOR_RESET, fp) < 0)
+ return -1;
+ }
+ if (!p)
+ return 0;
+ if (fputs(newline, fp) < 0)
+ return -1;
+ count -= p + 1 - buf;
+ buf = p + 1;
+ }
+ return 0;
+}
+
static void fn_out_diff_words_aux(void *priv, char *line, unsigned long len)
{
struct diff_words_data *diff_words = priv;
+ struct diff_words_style *style = diff_words->style;
int minus_first, minus_len, plus_first, plus_len;
const char *minus_begin, *minus_end, *plus_begin, *plus_end;
@@ -405,16 +645,17 @@ static void fn_out_diff_words_aux(void *priv, char *line, unsigned long len)
plus_begin = plus_end = diff_words->plus.orig[plus_first].end;
if (diff_words->current_plus != plus_begin)
- fwrite(diff_words->current_plus,
- plus_begin - diff_words->current_plus, 1,
- diff_words->file);
+ fn_out_diff_words_write_helper(diff_words->file,
+ &style->ctx, style->newline,
+ plus_begin - diff_words->current_plus,
+ diff_words->current_plus);
if (minus_begin != minus_end)
- color_fwrite_lines(diff_words->file,
- diff_get_color(1, DIFF_FILE_OLD),
+ fn_out_diff_words_write_helper(diff_words->file,
+ &style->old, style->newline,
minus_end - minus_begin, minus_begin);
if (plus_begin != plus_end)
- color_fwrite_lines(diff_words->file,
- diff_get_color(1, DIFF_FILE_NEW),
+ fn_out_diff_words_write_helper(diff_words->file,
+ &style->new, style->newline,
plus_end - plus_begin, plus_begin);
diff_words->current_plus = plus_end;
@@ -495,13 +736,13 @@ static void diff_words_show(struct diff_words_data *diff_words)
{
xpparam_t xpp;
xdemitconf_t xecfg;
- xdemitcb_t ecb;
mmfile_t minus, plus;
+ struct diff_words_style *style = diff_words->style;
/* special case: only removal */
if (!diff_words->plus.text.size) {
- color_fwrite_lines(diff_words->file,
- diff_get_color(1, DIFF_FILE_OLD),
+ fn_out_diff_words_write_helper(diff_words->file,
+ &style->old, style->newline,
diff_words->minus.text.size, diff_words->minus.text.ptr);
diff_words->minus.text.size = 0;
return;
@@ -517,38 +758,30 @@ static void diff_words_show(struct diff_words_data *diff_words)
/* as only the hunk header will be parsed, we need a 0-context */
xecfg.ctxlen = 0;
xdi_diff_outf(&minus, &plus, fn_out_diff_words_aux, diff_words,
- &xpp, &xecfg, &ecb);
+ &xpp, &xecfg);
free(minus.ptr);
free(plus.ptr);
if (diff_words->current_plus != diff_words->plus.text.ptr +
diff_words->plus.text.size)
- fwrite(diff_words->current_plus,
+ fn_out_diff_words_write_helper(diff_words->file,
+ &style->ctx, style->newline,
diff_words->plus.text.ptr + diff_words->plus.text.size
- - diff_words->current_plus, 1,
- diff_words->file);
+ - diff_words->current_plus, diff_words->current_plus);
diff_words->minus.text.size = diff_words->plus.text.size = 0;
}
-typedef unsigned long (*sane_truncate_fn)(char *line, unsigned long len);
-
-struct emit_callback {
- 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;
-};
+/* In "color-words" mode, show word-diff of words accumulated in the buffer */
+static void diff_words_flush(struct emit_callback *ecbdata)
+{
+ if (ecbdata->diff_words->minus.text.size ||
+ ecbdata->diff_words->plus.text.size)
+ diff_words_show(ecbdata->diff_words);
+}
static void free_diff_words_data(struct emit_callback *ecbdata)
{
if (ecbdata->diff_words) {
- /* flush buffers */
- if (ecbdata->diff_words->minus.text.size ||
- ecbdata->diff_words->plus.text.size)
- diff_words_show(ecbdata->diff_words);
-
+ diff_words_flush(ecbdata);
free (ecbdata->diff_words->minus.text.ptr);
free (ecbdata->diff_words->minus.orig);
free (ecbdata->diff_words->plus.text.ptr);
@@ -566,42 +799,6 @@ const char *diff_get_color(int diff_use_color, enum color_diff ix)
return "";
}
-static void emit_line(FILE *file, const char *set, const char *reset, const char *line, int len)
-{
- int has_trailing_newline, has_trailing_carriage_return;
-
- has_trailing_newline = (len > 0 && line[len-1] == '\n');
- if (has_trailing_newline)
- len--;
- has_trailing_carriage_return = (len > 0 && line[len-1] == '\r');
- if (has_trailing_carriage_return)
- len--;
-
- fputs(set, file);
- fwrite(line, len, 1, file);
- fputs(reset, file);
- if (has_trailing_carriage_return)
- fputc('\r', file);
- if (has_trailing_newline)
- fputc('\n', file);
-}
-
-static void emit_add_line(const char *reset, struct emit_callback *ecbdata, const char *line, int len)
-{
- const char *ws = diff_get_color(ecbdata->color_diff, DIFF_WHITESPACE);
- const char *set = diff_get_color(ecbdata->color_diff, DIFF_FILE_NEW);
-
- if (!*ws)
- 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);
- ws_check_emit(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;
@@ -620,15 +817,33 @@ static unsigned long sane_truncate_line(struct emit_callback *ecb, char *line, u
return allot - l;
}
+static void find_lno(const char *line, struct emit_callback *ecbdata)
+{
+ const char *p;
+ ecbdata->lno_in_preimage = 0;
+ ecbdata->lno_in_postimage = 0;
+ p = strchr(line, '-');
+ if (!p)
+ return; /* cannot happen */
+ ecbdata->lno_in_preimage = strtol(p + 1, NULL, 10);
+ p = strchr(p, '+');
+ if (!p)
+ return; /* cannot happen */
+ ecbdata->lno_in_postimage = strtol(p + 1, NULL, 10);
+}
+
static void fn_out_consume(void *priv, char *line, unsigned long len)
{
- int i;
- int color;
struct emit_callback *ecbdata = priv;
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);
+ if (ecbdata->header) {
+ fprintf(ecbdata->file, "%s", ecbdata->header->buf);
+ strbuf_reset(ecbdata->header);
+ ecbdata->header = NULL;
+ }
*(ecbdata->found_changesp) = 1;
if (ecbdata->label_path[0]) {
@@ -650,31 +865,25 @@ static void fn_out_consume(void *priv, char *line, unsigned long len)
len = 1;
}
- /* This is not really necessary for now because
- * this codepath only deals with two-way diffs.
- */
- for (i = 0; i < len && line[i] == '@'; i++)
- ;
- if (2 <= i && i < len && line[i] == ' ') {
- ecbdata->nparents = i - 1;
+ if (line[0] == '@') {
+ if (ecbdata->diff_words)
+ diff_words_flush(ecbdata);
len = sane_truncate_line(ecbdata, line, len);
- emit_line(ecbdata->file,
- diff_get_color(ecbdata->color_diff, DIFF_FRAGINFO),
- reset, line, len);
+ find_lno(line, ecbdata);
+ emit_hunk_header(ecbdata, line, len);
if (line[len-1] != '\n')
putc('\n', ecbdata->file);
return;
}
- if (len < ecbdata->nparents) {
+ if (len < 1) {
emit_line(ecbdata->file, reset, reset, line, len);
+ if (ecbdata->diff_words
+ && ecbdata->diff_words->type == DIFF_WORDS_PORCELAIN)
+ fputs("~\n", ecbdata->file);
return;
}
- color = DIFF_PLAIN;
- if (ecbdata->diff_words && ecbdata->nparents != 1)
- /* fall back to normal diff */
- free_diff_words_data(ecbdata);
if (ecbdata->diff_words) {
if (line[0] == '-') {
diff_words_append(line, len,
@@ -685,28 +894,29 @@ static void fn_out_consume(void *priv, char *line, unsigned long len)
&ecbdata->diff_words->plus);
return;
}
- if (ecbdata->diff_words->minus.text.size ||
- ecbdata->diff_words->plus.text.size)
- diff_words_show(ecbdata->diff_words);
- line++;
- len--;
- emit_line(ecbdata->file, plain, reset, line, len);
+ diff_words_flush(ecbdata);
+ if (ecbdata->diff_words->type == DIFF_WORDS_PORCELAIN) {
+ emit_line(ecbdata->file, plain, reset, line, len);
+ fputs("~\n", ecbdata->file);
+ } else {
+ /* don't print the prefix character */
+ emit_line(ecbdata->file, plain, reset, line+1, len-1);
+ }
return;
}
- for (i = 0; i < ecbdata->nparents && len; i++) {
- if (line[i] == '-')
- color = DIFF_FILE_OLD;
- else if (line[i] == '+')
- color = DIFF_FILE_NEW;
- }
- if (color != DIFF_FILE_NEW) {
- emit_line(ecbdata->file,
- diff_get_color(ecbdata->color_diff, color),
- reset, line, len);
- return;
+ if (line[0] != '+') {
+ const char *color =
+ diff_get_color(ecbdata->color_diff,
+ line[0] == '-' ? DIFF_FILE_OLD : DIFF_PLAIN);
+ ecbdata->lno_in_preimage++;
+ if (line[0] == ' ')
+ ecbdata->lno_in_postimage++;
+ emit_line(ecbdata->file, color, reset, line, len);
+ } else {
+ ecbdata->lno_in_postimage++;
+ emit_add_line(reset, ecbdata, line + 1, len - 1);
}
- emit_add_line(reset, ecbdata, line, len);
}
static char *pprint_rename(const char *a, const char *b)
@@ -786,7 +996,7 @@ struct diffstat_t {
unsigned is_unmerged:1;
unsigned is_binary:1;
unsigned is_renamed:1;
- unsigned int added, deleted;
+ uintmax_t added, deleted;
} **files;
};
@@ -878,7 +1088,7 @@ static void fill_print_name(struct diffstat_file *file)
static void show_stats(struct diffstat_t *data, struct diff_options *options)
{
int i, len, add, del, adds = 0, dels = 0;
- int max_change = 0, max_len = 0;
+ uintmax_t max_change = 0, max_len = 0;
int total_files = data->nr;
int width, name_width;
const char *reset, *set, *add_c, *del_c;
@@ -907,7 +1117,7 @@ static void show_stats(struct diffstat_t *data, struct diff_options *options)
for (i = 0; i < data->nr; i++) {
struct diffstat_file *file = data->files[i];
- int change = file->added + file->deleted;
+ uintmax_t change = file->added + file->deleted;
fill_print_name(file);
len = strlen(file->print_name);
if (max_len < len)
@@ -935,8 +1145,8 @@ static void show_stats(struct diffstat_t *data, struct diff_options *options)
for (i = 0; i < data->nr; i++) {
const char *prefix = "";
char *name = data->files[i]->print_name;
- int added = data->files[i]->added;
- int deleted = data->files[i]->deleted;
+ uintmax_t added = data->files[i]->added;
+ uintmax_t deleted = data->files[i]->deleted;
int name_len;
/*
@@ -957,9 +1167,11 @@ static void show_stats(struct diffstat_t *data, struct diff_options *options)
if (data->files[i]->is_binary) {
show_name(options->file, prefix, name, len);
fprintf(options->file, " Bin ");
- fprintf(options->file, "%s%d%s", del_c, deleted, reset);
+ fprintf(options->file, "%s%"PRIuMAX"%s",
+ del_c, deleted, reset);
fprintf(options->file, " -> ");
- fprintf(options->file, "%s%d%s", add_c, added, reset);
+ fprintf(options->file, "%s%"PRIuMAX"%s",
+ add_c, added, reset);
fprintf(options->file, " bytes");
fprintf(options->file, "\n");
continue;
@@ -988,7 +1200,7 @@ static void show_stats(struct diffstat_t *data, struct diff_options *options)
del = scale_linear(del, width, max_change);
}
show_name(options->file, prefix, name, len);
- fprintf(options->file, "%5d%s", added + deleted,
+ fprintf(options->file, "%5"PRIuMAX"%s", added + deleted,
added + deleted ? " " : "");
show_graph(options->file, '+', add, add_c, reset);
show_graph(options->file, '-', del, del_c, reset);
@@ -999,7 +1211,7 @@ static void show_stats(struct diffstat_t *data, struct diff_options *options)
total_files, adds, dels);
}
-static void show_shortstats(struct diffstat_t* data, struct diff_options *options)
+static void show_shortstats(struct diffstat_t *data, struct diff_options *options)
{
int i, adds = 0, dels = 0, total_files = data->nr;
@@ -1038,7 +1250,8 @@ static void show_numstat(struct diffstat_t *data, struct diff_options *options)
fprintf(options->file, "-\t-\t");
else
fprintf(options->file,
- "%d\t%d\t", file->added, file->deleted);
+ "%"PRIuMAX"\t%"PRIuMAX"\t",
+ file->added, file->deleted);
if (options->line_termination) {
fill_print_name(file);
if (!file->is_renamed)
@@ -1208,38 +1421,32 @@ static void free_diffstat_info(struct diffstat_t *diffstat)
struct checkdiff_t {
const char *filename;
int lineno;
+ int conflict_marker_size;
struct diff_options *o;
unsigned ws_rule;
unsigned status;
- int trailing_blanks_start;
};
-static int is_conflict_marker(const char *line, unsigned long len)
+static int is_conflict_marker(const char *line, int marker_size, unsigned long len)
{
char firstchar;
int cnt;
- if (len < 8)
+ if (len < marker_size + 1)
return 0;
firstchar = line[0];
switch (firstchar) {
- case '=': case '>': case '<':
+ case '=': case '>': case '<': case '|':
break;
default:
return 0;
}
- for (cnt = 1; cnt < 7; cnt++)
+ for (cnt = 1; cnt < marker_size; cnt++)
if (line[cnt] != firstchar)
return 0;
- /* line[0] thru line[6] are same as firstchar */
- if (firstchar == '=') {
- /* divider between ours and theirs? */
- if (len != 8 || line[7] != '\n')
- return 0;
- } else if (len < 8 || !isspace(line[7])) {
- /* not divider before ours nor after theirs */
+ /* line[1] thru line[marker_size-1] are same as firstchar */
+ if (len < marker_size + 1 || !isspace(line[marker_size]))
return 0;
- }
return 1;
}
@@ -1247,6 +1454,7 @@ static void checkdiff_consume(void *priv, char *line, unsigned long len)
{
struct checkdiff_t *data = priv;
int color_diff = DIFF_OPT_TST(data->o, COLOR_DIFF);
+ int marker_size = data->conflict_marker_size;
const char *ws = diff_get_color(color_diff, DIFF_WHITESPACE);
const char *reset = diff_get_color(color_diff, DIFF_RESET);
const char *set = diff_get_color(color_diff, DIFF_FILE_NEW);
@@ -1255,11 +1463,7 @@ static void checkdiff_consume(void *priv, char *line, unsigned long len)
if (line[0] == '+') {
unsigned bad;
data->lineno++;
- if (!ws_blank_line(line + 1, len - 1, data->ws_rule))
- data->trailing_blanks_start = 0;
- else if (!data->trailing_blanks_start)
- data->trailing_blanks_start = data->lineno;
- if (is_conflict_marker(line + 1, len - 1)) {
+ if (is_conflict_marker(line + 1, marker_size, len - 1)) {
data->status |= 1;
fprintf(data->o->file,
"%s:%d: leftover conflict marker\n",
@@ -1278,14 +1482,12 @@ static void checkdiff_consume(void *priv, char *line, unsigned long len)
data->o->file, set, reset, ws);
} else if (line[0] == ' ') {
data->lineno++;
- data->trailing_blanks_start = 0;
} else if (line[0] == '@') {
char *plus = strchr(line, '+');
if (plus)
data->lineno = strtol(plus, NULL, 10) - 1;
else
die("invalid diff");
- data->trailing_blanks_start = 0;
}
}
@@ -1427,14 +1629,26 @@ void diff_set_mnemonic_prefix(struct diff_options *options, const char *a, const
options->b_prefix = b;
}
-static const char *get_textconv(struct diff_filespec *one)
+static struct userdiff_driver *get_textconv(struct diff_filespec *one)
{
if (!DIFF_FILE_VALID(one))
return NULL;
if (!S_ISREG(one->mode))
return NULL;
diff_filespec_load_driver(one);
- return one->driver->textconv;
+ if (!one->driver->textconv)
+ return NULL;
+
+ if (one->driver->textconv_want_cache && !one->driver->textconv_cache) {
+ struct notes_cache *c = xmalloc(sizeof(*c));
+ struct strbuf name = STRBUF_INIT;
+
+ strbuf_addf(&name, "textconv/%s", one->driver->name);
+ notes_cache_init(c, name.buf, one->driver->textconv);
+ one->driver->textconv_cache = c;
+ }
+
+ return one->driver;
}
static void builtin_diff(const char *name_a,
@@ -1451,7 +1665,20 @@ static void builtin_diff(const char *name_a,
const char *set = diff_get_color_opt(o, DIFF_METAINFO);
const char *reset = diff_get_color_opt(o, DIFF_RESET);
const char *a_prefix, *b_prefix;
- const char *textconv_one = NULL, *textconv_two = NULL;
+ struct userdiff_driver *textconv_one = NULL;
+ struct userdiff_driver *textconv_two = NULL;
+ struct strbuf header = STRBUF_INIT;
+
+ if (DIFF_OPT_TST(o, SUBMODULE_LOG) &&
+ (!one->mode || S_ISGITLINK(one->mode)) &&
+ (!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,
+ one->sha1, two->sha1, two->dirty_submodule,
+ del, add, reset);
+ return;
+ }
if (DIFF_OPT_TST(o, ALLOW_TEXTCONV)) {
textconv_one = get_textconv(one);
@@ -1475,25 +1702,26 @@ static void builtin_diff(const char *name_a,
b_two = quote_two(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";
- fprintf(o->file, "%sdiff --git %s %s%s\n", set, a_one, b_two, reset);
+ strbuf_addf(&header, "%sdiff --git %s %s%s\n", set, a_one, b_two, reset);
if (lbl[0][0] == '/') {
/* /dev/null */
- fprintf(o->file, "%snew file mode %06o%s\n", set, two->mode, reset);
+ strbuf_addf(&header, "%snew file mode %06o%s\n", set, two->mode, reset);
if (xfrm_msg && xfrm_msg[0])
- fprintf(o->file, "%s%s%s\n", set, xfrm_msg, reset);
+ strbuf_addf(&header, "%s%s%s\n", set, xfrm_msg, reset);
}
else if (lbl[1][0] == '/') {
- fprintf(o->file, "%sdeleted file mode %06o%s\n", set, one->mode, reset);
+ strbuf_addf(&header, "%sdeleted file mode %06o%s\n", set, one->mode, reset);
if (xfrm_msg && xfrm_msg[0])
- fprintf(o->file, "%s%s%s\n", set, xfrm_msg, reset);
+ strbuf_addf(&header, "%s%s%s\n", set, xfrm_msg, reset);
}
else {
if (one->mode != two->mode) {
- fprintf(o->file, "%sold mode %06o%s\n", set, one->mode, reset);
- fprintf(o->file, "%snew mode %06o%s\n", set, two->mode, reset);
+ strbuf_addf(&header, "%sold mode %06o%s\n", set, one->mode, reset);
+ strbuf_addf(&header, "%snew mode %06o%s\n", set, two->mode, reset);
}
if (xfrm_msg && xfrm_msg[0])
- fprintf(o->file, "%s%s%s\n", set, xfrm_msg, reset);
+ strbuf_addf(&header, "%s%s%s\n", set, xfrm_msg, reset);
+
/*
* we do not run diff between different kind
* of objects.
@@ -1503,6 +1731,8 @@ static void builtin_diff(const char *name_a,
if (complete_rewrite &&
(textconv_one || !diff_filespec_is_binary(one)) &&
(textconv_two || !diff_filespec_is_binary(two))) {
+ fprintf(o->file, "%s", header.buf);
+ strbuf_reset(&header);
emit_rewrite_diff(name_a, name_b, one, two,
textconv_one, textconv_two, o);
o->found_changes = 1;
@@ -1510,16 +1740,17 @@ static void builtin_diff(const char *name_a,
}
}
- if (fill_mmfile(&mf1, one) < 0 || fill_mmfile(&mf2, two) < 0)
- die("unable to read files to diff");
-
if (!DIFF_OPT_TST(o, TEXT) &&
- ( (diff_filespec_is_binary(one) && !textconv_one) ||
- (diff_filespec_is_binary(two) && !textconv_two) )) {
+ ( (!textconv_one && diff_filespec_is_binary(one)) ||
+ (!textconv_two && diff_filespec_is_binary(two)) )) {
+ if (fill_mmfile(&mf1, one) < 0 || fill_mmfile(&mf2, two) < 0)
+ die("unable to read files to diff");
/* Quite common confusing case */
if (mf1.size == mf2.size &&
!memcmp(mf1.ptr, mf2.ptr, mf1.size))
goto free_ab_and_return;
+ fprintf(o->file, "%s", header.buf);
+ strbuf_reset(&header);
if (DIFF_OPT_TST(o, BINARY))
emit_binary_diff(o->file, &mf1, &mf2);
else
@@ -1532,25 +1763,17 @@ static void builtin_diff(const char *name_a,
const char *diffopts = getenv("GIT_DIFF_OPTS");
xpparam_t xpp;
xdemitconf_t xecfg;
- xdemitcb_t ecb;
struct emit_callback ecbdata;
const struct userdiff_funcname *pe;
- if (textconv_one) {
- size_t size;
- mf1.ptr = run_textconv(textconv_one, one, &size);
- if (!mf1.ptr)
- die("unable to read files to diff");
- mf1.size = size;
- }
- if (textconv_two) {
- size_t size;
- mf2.ptr = run_textconv(textconv_two, two, &size);
- if (!mf2.ptr)
- die("unable to read files to diff");
- mf2.size = size;
+ if (!DIFF_XDL_TST(o, WHITESPACE_FLAGS)) {
+ fprintf(o->file, "%s", header.buf);
+ strbuf_reset(&header);
}
+ mf1.size = fill_textconv(textconv_one, one, &mf1.ptr);
+ mf2.size = fill_textconv(textconv_two, two, &mf2.ptr);
+
pe = diff_funcname_pattern(one);
if (!pe)
pe = diff_funcname_pattern(two);
@@ -1562,7 +1785,10 @@ static void builtin_diff(const char *name_a,
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);
+ if (ecbdata.ws_rule & WS_BLANK_AT_EOF)
+ check_blank_at_eof(&mf1, &mf2, &ecbdata);
ecbdata.file = o->file;
+ ecbdata.header = header.len ? &header : NULL;
xpp.flags = XDF_NEED_MINIMAL | o->xdl_opts;
xecfg.ctxlen = o->context;
xecfg.interhunkctxlen = o->interhunkcontext;
@@ -1575,10 +1801,13 @@ static void builtin_diff(const char *name_a,
xecfg.ctxlen = strtoul(diffopts + 10, NULL, 10);
else if (!prefixcmp(diffopts, "-u"))
xecfg.ctxlen = strtoul(diffopts + 2, NULL, 10);
- if (DIFF_OPT_TST(o, COLOR_DIFF_WORDS)) {
+ if (o->word_diff) {
+ int i;
+
ecbdata.diff_words =
xcalloc(1, sizeof(struct diff_words_data));
ecbdata.diff_words->file = o->file;
+ ecbdata.diff_words->type = o->word_diff;
if (!o->word_regex)
o->word_regex = userdiff_word_regex(one);
if (!o->word_regex)
@@ -1594,18 +1823,33 @@ static void builtin_diff(const char *name_a,
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 (DIFF_OPT_TST(o, COLOR_DIFF)) {
+ 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);
+ }
}
xdi_diff_outf(&mf1, &mf2, fn_out_consume, &ecbdata,
- &xpp, &xecfg, &ecb);
- if (DIFF_OPT_TST(o, COLOR_DIFF_WORDS))
+ &xpp, &xecfg);
+ if (o->word_diff)
free_diff_words_data(&ecbdata);
if (textconv_one)
free(mf1.ptr);
if (textconv_two)
free(mf2.ptr);
+ xdiff_clear_find_func(&xecfg);
}
free_ab_and_return:
+ strbuf_release(&header);
diff_free_filespec_data(one);
diff_free_filespec_data(two);
free(a_one);
@@ -1647,13 +1891,12 @@ static void builtin_diffstat(const char *name_a, const char *name_b,
/* Crazy xdl interfaces.. */
xpparam_t xpp;
xdemitconf_t xecfg;
- xdemitcb_t ecb;
memset(&xpp, 0, sizeof(xpp));
memset(&xecfg, 0, sizeof(xecfg));
xpp.flags = XDF_NEED_MINIMAL | o->xdl_opts;
xdi_diff_outf(&mf1, &mf2, diffstat_consume, diffstat,
- &xpp, &xecfg, &ecb);
+ &xpp, &xecfg);
}
free_and_return:
@@ -1678,6 +1921,7 @@ static void builtin_checkdiff(const char *name_a, const char *name_b,
data.lineno = 0;
data.o = o;
data.ws_rule = whitespace_rule(attr_path);
+ data.conflict_marker_size = ll_merge_marker_size(attr_path);
if (fill_mmfile(&mf1, one) < 0 || fill_mmfile(&mf2, two) < 0)
die("unable to read files to diff");
@@ -1694,20 +1938,30 @@ static void builtin_checkdiff(const char *name_a, const char *name_b,
/* Crazy xdl interfaces.. */
xpparam_t xpp;
xdemitconf_t xecfg;
- xdemitcb_t ecb;
memset(&xpp, 0, sizeof(xpp));
memset(&xecfg, 0, sizeof(xecfg));
xecfg.ctxlen = 1; /* at least one context line */
xpp.flags = XDF_NEED_MINIMAL;
xdi_diff_outf(&mf1, &mf2, checkdiff_consume, &data,
- &xpp, &xecfg, &ecb);
-
- if ((data.ws_rule & WS_TRAILING_SPACE) &&
- data.trailing_blanks_start) {
- fprintf(o->file, "%s:%d: ends with blank lines.\n",
- data.filename, data.trailing_blanks_start);
- data.status = 1; /* report errors */
+ &xpp, &xecfg);
+
+ if (data.ws_rule & WS_BLANK_AT_EOF) {
+ struct emit_callback ecbdata;
+ int blank_at_eof;
+
+ ecbdata.ws_rule = data.ws_rule;
+ check_blank_at_eof(&mf1, &mf2, &ecbdata);
+ blank_at_eof = ecbdata.blank_at_eof_in_preimage;
+
+ if (blank_at_eof) {
+ static char *err;
+ if (!err)
+ err = whitespace_error_string(WS_BLANK_AT_EOF);
+ fprintf(o->file, "%s:%d: %s.\n",
+ data.filename, blank_at_eof, err);
+ data.status = 1; /* report errors */
+ }
}
}
free_and_return:
@@ -1804,7 +2058,7 @@ static int reuse_worktree_file(const char *name, const unsigned char *sha1, int
* If ce is marked as "assume unchanged", there is no
* guarantee that work tree matches what we are looking for.
*/
- if (ce->ce_flags & CE_VALID)
+ if ((ce->ce_flags & CE_VALID) || ce_skip_worktree(ce))
return 0;
/*
@@ -1836,9 +2090,14 @@ static int populate_from_stdin(struct diff_filespec *s)
static int diff_populate_gitlink(struct diff_filespec *s, int size_only)
{
int len;
- char *data = xmalloc(100);
+ char *data = xmalloc(100), *dirty = "";
+
+ /* Are we looking at the work tree? */
+ if (s->dirty_submodule)
+ dirty = "-dirty";
+
len = snprintf(data, 100,
- "Subproject commit %s\n", sha1_to_hex(s->sha1));
+ "Subproject commit %s%s\n", sha1_to_hex(s->sha1), dirty);
s->data = data;
s->size = len;
s->should_free = 1;
@@ -1975,14 +2234,14 @@ static void prep_temp_blob(const char *path, struct diff_tempfile *temp,
fd = git_mkstemps(temp->tmp_path, PATH_MAX, template.buf,
strlen(base) + 1);
if (fd < 0)
- die("unable to create temp-file: %s", strerror(errno));
+ die_errno("unable to create temp-file");
if (convert_to_working_tree(path,
(const char *)blob, (size_t)size, &buf)) {
blob = buf.buf;
size = buf.len;
}
if (write_in_full(fd, blob, size) != size)
- die("unable to write temp-file");
+ die_errno("unable to write temp-file");
close(fd);
temp->name = temp->tmp_path;
strcpy(temp->hex, sha1_to_hex(sha1));
@@ -2021,12 +2280,12 @@ static struct diff_tempfile *prepare_temp_file(const char *name,
if (lstat(name, &st) < 0) {
if (errno == ENOENT)
goto not_a_valid_file;
- die("stat(%s): %s", name, strerror(errno));
+ die_errno("stat(%s)", name);
}
if (S_ISLNK(st.st_mode)) {
struct strbuf sb = STRBUF_INIT;
if (strbuf_readlink(&sb, name, st.st_size) < 0)
- die("readlink(%s)", name);
+ die_errno("readlink(%s)", name);
prep_temp_blob(name, temp, sb.buf, sb.len,
(one->sha1_valid ?
one->sha1 : null_sha1),
@@ -2101,7 +2360,7 @@ static void run_external_diff(const char *pgm,
}
*arg = NULL;
fflush(NULL);
- retval = run_command_v_opt(spawn_arg, 0);
+ retval = run_command_v_opt(spawn_arg, RUN_USING_SHELL);
remove_tempfile();
if (retval) {
fprintf(stderr, "external diff died, stopping at %s.\n", name);
@@ -2219,7 +2478,7 @@ static void diff_fill_sha1_info(struct diff_filespec *one)
return;
}
if (lstat(one->path, &st) < 0)
- die("stat %s", one->path);
+ die_errno("stat '%s'", one->path);
if (index_path(one->sha1, one->path, &st, 0))
die("cannot hash %s", one->path);
}
@@ -2377,6 +2636,20 @@ int diff_setup_done(struct diff_options *options)
if (count > 1)
die("--name-only, --name-status, --check and -s are mutually exclusive");
+ /*
+ * Most of the time we can say "there are changes"
+ * only by checking if there are changed paths, but
+ * --ignore-whitespace* options force us to look
+ * inside contents.
+ */
+
+ if (DIFF_XDL_TST(options, IGNORE_WHITESPACE) ||
+ DIFF_XDL_TST(options, IGNORE_WHITESPACE_CHANGE) ||
+ DIFF_XDL_TST(options, IGNORE_WHITESPACE_AT_EOL))
+ DIFF_OPT_SET(options, DIFF_FROM_CONTENTS);
+ else
+ DIFF_OPT_CLR(options, DIFF_FROM_CONTENTS);
+
if (DIFF_OPT_TST(options, FIND_COPIES_HARDER))
options->detect_rename = DIFF_DETECT_COPY;
@@ -2416,6 +2689,12 @@ int diff_setup_done(struct diff_options *options)
*/
if (options->pickaxe)
DIFF_OPT_SET(options, RECURSIVE);
+ /*
+ * When patches are generated, submodules diffed against the work tree
+ * must be checked for dirtiness too so it can be shown in the output
+ */
+ if (options->output_format & DIFF_FORMAT_PATCH)
+ DIFF_OPT_SET(options, DIRTY_SUBMODULES);
if (options->detect_rename && options->rename_limit < 0)
options->rename_limit = diff_rename_limit_default;
@@ -2437,7 +2716,7 @@ int diff_setup_done(struct diff_options *options)
* to have found. It does not make sense not to return with
* exit code in such a case either.
*/
- if (DIFF_OPT_TST(options, QUIET)) {
+ if (DIFF_OPT_TST(options, QUICK)) {
options->output_format = DIFF_FORMAT_NO_OUTPUT;
DIFF_OPT_SET(options, EXIT_WITH_STATUS);
}
@@ -2499,7 +2778,7 @@ 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"))
+ 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;
@@ -2614,21 +2893,54 @@ int diff_opt_parse(struct diff_options *options, const char **av, int ac)
DIFF_OPT_SET(options, FOLLOW_RENAMES);
else if (!strcmp(arg, "--color"))
DIFF_OPT_SET(options, COLOR_DIFF);
+ else if (!prefixcmp(arg, "--color=")) {
+ int value = git_config_colorbool(NULL, arg+8, -1);
+ if (value == 0)
+ DIFF_OPT_CLR(options, COLOR_DIFF);
+ else if (value > 0)
+ DIFF_OPT_SET(options, COLOR_DIFF);
+ else
+ return error("option `color' expects \"always\", \"auto\", or \"never\"");
+ }
else if (!strcmp(arg, "--no-color"))
DIFF_OPT_CLR(options, COLOR_DIFF);
else if (!strcmp(arg, "--color-words")) {
DIFF_OPT_SET(options, COLOR_DIFF);
- DIFF_OPT_SET(options, COLOR_DIFF_WORDS);
+ options->word_diff = DIFF_WORDS_COLOR;
}
else if (!prefixcmp(arg, "--color-words=")) {
DIFF_OPT_SET(options, COLOR_DIFF);
- DIFF_OPT_SET(options, COLOR_DIFF_WORDS);
+ options->word_diff = DIFF_WORDS_COLOR;
options->word_regex = arg + 14;
}
+ else if (!strcmp(arg, "--word-diff")) {
+ if (options->word_diff == DIFF_WORDS_NONE)
+ options->word_diff = DIFF_WORDS_PLAIN;
+ }
+ else if (!prefixcmp(arg, "--word-diff=")) {
+ const char *type = arg + 12;
+ if (!strcmp(type, "plain"))
+ options->word_diff = DIFF_WORDS_PLAIN;
+ else if (!strcmp(type, "color")) {
+ DIFF_OPT_SET(options, COLOR_DIFF);
+ options->word_diff = DIFF_WORDS_COLOR;
+ }
+ else if (!strcmp(type, "porcelain"))
+ options->word_diff = DIFF_WORDS_PORCELAIN;
+ else if (!strcmp(type, "none"))
+ options->word_diff = DIFF_WORDS_NONE;
+ else
+ die("bad --word-diff argument: %s", type);
+ }
+ else if (!prefixcmp(arg, "--word-diff-regex=")) {
+ if (options->word_diff == DIFF_WORDS_NONE)
+ options->word_diff = DIFF_WORDS_PLAIN;
+ options->word_regex = arg + 18;
+ }
else if (!strcmp(arg, "--exit-code"))
DIFF_OPT_SET(options, EXIT_WITH_STATUS);
else if (!strcmp(arg, "--quiet"))
- DIFF_OPT_SET(options, QUIET);
+ DIFF_OPT_SET(options, QUICK);
else if (!strcmp(arg, "--ext-diff"))
DIFF_OPT_SET(options, ALLOW_EXTERNAL);
else if (!strcmp(arg, "--no-ext-diff"))
@@ -2639,6 +2951,12 @@ int diff_opt_parse(struct diff_options *options, const char **av, int ac)
DIFF_OPT_CLR(options, ALLOW_TEXTCONV);
else if (!strcmp(arg, "--ignore-submodules"))
DIFF_OPT_SET(options, IGNORE_SUBMODULES);
+ else if (!strcmp(arg, "--submodule"))
+ DIFF_OPT_SET(options, SUBMODULE_LOG);
+ else if (!prefixcmp(arg, "--submodule=")) {
+ if (!strcmp(arg + 12, "log"))
+ DIFF_OPT_SET(options, SUBMODULE_LOG);
+ }
/* misc options */
else if (!strcmp(arg, "-z"))
@@ -2675,6 +2993,8 @@ int diff_opt_parse(struct diff_options *options, const char **av, int ac)
;
else if (!prefixcmp(arg, "--output=")) {
options->file = fopen(arg + strlen("--output="), "w");
+ if (!options->file)
+ die_errno("Could not open '%s'", arg + strlen("--output="));
options->close_file = 1;
} else
return 0;
@@ -2690,7 +3010,7 @@ static int parse_num(const char **cp_p)
num = 0;
scale = 1;
dot = 0;
- for(;;) {
+ for (;;) {
ch = *cp;
if ( !dot && ch == '.' ) {
scale = 1;
@@ -2857,7 +3177,8 @@ int diff_unmodified_pair(struct diff_filepair *p)
* dealing with a change.
*/
if (one->sha1_valid && two->sha1_valid &&
- !hashcmp(one->sha1, two->sha1))
+ !hashcmp(one->sha1, two->sha1) &&
+ !one->dirty_submodule && !two->dirty_submodule)
return 1; /* no change */
if (!one->sha1_valid && !two->sha1_valid)
return 1; /* both look at the same file on the filesystem. */
@@ -2992,6 +3313,8 @@ static void diff_resolve_rename_copy(void)
}
else if (hashcmp(p->one->sha1, p->two->sha1) ||
p->one->mode != p->two->mode ||
+ p->one->dirty_submodule ||
+ p->two->dirty_submodule ||
is_null_sha1(p->one->sha1))
p->status = DIFF_STATUS_MODIFIED;
else {
@@ -3140,7 +3463,6 @@ static int diff_get_patch_id(struct diff_options *options, unsigned char *sha1)
for (i = 0; i < q->nr; i++) {
xpparam_t xpp;
xdemitconf_t xecfg;
- xdemitcb_t ecb;
mmfile_t mf1, mf2;
struct diff_filepair *p = q->queue[i];
int len1, len2;
@@ -3202,7 +3524,7 @@ static int diff_get_patch_id(struct diff_options *options, unsigned char *sha1)
xecfg.ctxlen = 3;
xecfg.flags = XDL_EMIT_FUNCNAMES;
xdi_diff_outf(&mf1, &mf2, patch_id_consume, &data,
- &xpp, &xecfg, &ecb);
+ &xpp, &xecfg);
}
git_SHA1_Final(sha1, &ctx);
@@ -3302,6 +3624,29 @@ void diff_flush(struct diff_options *options)
separator++;
}
+ if (output_format & DIFF_FORMAT_NO_OUTPUT &&
+ DIFF_OPT_TST(options, EXIT_WITH_STATUS) &&
+ 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
+ * aren't supposed to produce any output anyway.
+ */
+ if (options->close_file)
+ fclose(options->file);
+ options->file = fopen("/dev/null", "w");
+ if (!options->file)
+ die_errno("Could not open /dev/null");
+ options->close_file = 1;
+ for (i = 0; i < q->nr; i++) {
+ struct diff_filepair *p = q->queue[i];
+ if (check_pair_status(p))
+ diff_flush_patch(p, options);
+ if (options->found_changes)
+ break;
+ }
+ }
+
if (output_format & DIFF_FORMAT_PATCH) {
if (separator) {
putc(options->line_termination, options->file);
@@ -3329,6 +3674,18 @@ free_queue:
q->nr = q->alloc = 0;
if (options->close_file)
fclose(options->file);
+
+ /*
+ * Report the content-level differences with HAS_CHANGES;
+ * diff_addremove/diff_change does not set the bit when
+ * DIFF_FROM_CONTENTS is in effect (e.g. with -w).
+ */
+ if (DIFF_OPT_TST(options, DIFF_FROM_CONTENTS)) {
+ if (options->found_changes)
+ DIFF_OPT_SET(options, HAS_CHANGES);
+ else
+ DIFF_OPT_CLR(options, HAS_CHANGES);
+ }
}
static void diffcore_apply_filter(const char *filter)
@@ -3412,7 +3769,7 @@ static void diffcore_skip_stat_unmatch(struct diff_options *diffopt)
struct diff_filepair *p = q->queue[i];
/*
- * 1. Entries that come from stat info dirtyness
+ * 1. Entries that come from stat info dirtiness
* always have both sides (iow, not create/delete),
* one side of the object name is unknown, with
* the same mode and size. Keep the ones that
@@ -3448,6 +3805,23 @@ static void diffcore_skip_stat_unmatch(struct diff_options *diffopt)
*q = outq;
}
+static int diffnamecmp(const void *a_, const void *b_)
+{
+ const struct diff_filepair *a = *((const struct diff_filepair **)a_);
+ const struct diff_filepair *b = *((const struct diff_filepair **)b_);
+ const char *name_a, *name_b;
+
+ name_a = a->one ? a->one->path : a->two->path;
+ name_b = b->one ? b->one->path : b->two->path;
+ return strcmp(name_a, name_b);
+}
+
+void diffcore_fix_diff_index(struct diff_options *options)
+{
+ struct diff_queue_struct *q = &diff_queued_diff;
+ qsort(q->queue, q->nr, sizeof(q->queue[0]), diffnamecmp);
+}
+
void diffcore_std(struct diff_options *options)
{
if (options->skip_stat_unmatch)
@@ -3465,7 +3839,7 @@ void diffcore_std(struct diff_options *options)
diff_resolve_rename_copy();
diffcore_apply_filter(options->filter);
- if (diff_queued_diff.nr)
+ if (diff_queued_diff.nr && !DIFF_OPT_TST(options, DIFF_FROM_CONTENTS))
DIFF_OPT_SET(options, HAS_CHANGES);
else
DIFF_OPT_CLR(options, HAS_CHANGES);
@@ -3489,7 +3863,7 @@ int diff_result_code(struct diff_options *opt, int status)
void diff_addremove(struct diff_options *options,
int addremove, unsigned mode,
const unsigned char *sha1,
- const char *concatpath)
+ const char *concatpath, unsigned dirty_submodule)
{
struct diff_filespec *one, *two;
@@ -3521,18 +3895,22 @@ void diff_addremove(struct diff_options *options,
if (addremove != '+')
fill_filespec(one, sha1, mode);
- if (addremove != '-')
+ if (addremove != '-') {
fill_filespec(two, sha1, mode);
+ two->dirty_submodule = dirty_submodule;
+ }
diff_queue(&diff_queued_diff, one, two);
- DIFF_OPT_SET(options, HAS_CHANGES);
+ if (!DIFF_OPT_TST(options, DIFF_FROM_CONTENTS))
+ DIFF_OPT_SET(options, HAS_CHANGES);
}
void diff_change(struct diff_options *options,
unsigned old_mode, unsigned new_mode,
const unsigned char *old_sha1,
const unsigned char *new_sha1,
- const char *concatpath)
+ const char *concatpath,
+ unsigned old_dirty_submodule, unsigned new_dirty_submodule)
{
struct diff_filespec *one, *two;
@@ -3545,6 +3923,8 @@ void diff_change(struct diff_options *options,
const unsigned char *tmp_c;
tmp = old_mode; old_mode = new_mode; new_mode = tmp;
tmp_c = old_sha1; old_sha1 = new_sha1; new_sha1 = tmp_c;
+ tmp = old_dirty_submodule; old_dirty_submodule = new_dirty_submodule;
+ new_dirty_submodule = tmp;
}
if (options->prefix &&
@@ -3555,9 +3935,12 @@ void diff_change(struct diff_options *options,
two = alloc_filespec(concatpath);
fill_filespec(one, old_sha1, old_mode);
fill_filespec(two, new_sha1, new_mode);
+ one->dirty_submodule = old_dirty_submodule;
+ two->dirty_submodule = new_dirty_submodule;
diff_queue(&diff_queued_diff, one, two);
- DIFF_OPT_SET(options, HAS_CHANGES);
+ if (!DIFF_OPT_TST(options, DIFF_FROM_CONTENTS))
+ DIFF_OPT_SET(options, HAS_CHANGES);
}
void diff_unmerge(struct diff_options *options,
@@ -3584,6 +3967,7 @@ static char *run_textconv(const char *pgm, struct diff_filespec *spec,
const char **arg = argv;
struct child_process child;
struct strbuf buf = STRBUF_INIT;
+ int err = 0;
temp = prepare_temp_file(spec->path, spec);
*arg++ = pgm;
@@ -3591,17 +3975,68 @@ static char *run_textconv(const char *pgm, struct diff_filespec *spec,
*arg = NULL;
memset(&child, 0, sizeof(child));
+ child.use_shell = 1;
child.argv = argv;
child.out = -1;
- if (start_command(&child) != 0 ||
- strbuf_read(&buf, child.out, 0) < 0 ||
- finish_command(&child) != 0) {
+ if (start_command(&child)) {
+ remove_tempfile();
+ return NULL;
+ }
+
+ if (strbuf_read(&buf, child.out, 0) < 0)
+ err = error("error reading from textconv command '%s'", pgm);
+ close(child.out);
+
+ if (finish_command(&child) || err) {
strbuf_release(&buf);
remove_tempfile();
- error("error running textconv command '%s'", pgm);
return NULL;
}
remove_tempfile();
return strbuf_detach(&buf, outsize);
}
+
+static size_t fill_textconv(struct userdiff_driver *driver,
+ struct diff_filespec *df,
+ char **outbuf)
+{
+ size_t size;
+
+ if (!driver || !driver->textconv) {
+ if (!DIFF_FILE_VALID(df)) {
+ *outbuf = "";
+ return 0;
+ }
+ if (diff_populate_filespec(df, 0))
+ die("unable to read files to diff");
+ *outbuf = df->data;
+ return df->size;
+ }
+
+ if (driver->textconv_cache) {
+ *outbuf = notes_cache_get(driver->textconv_cache, df->sha1,
+ &size);
+ if (*outbuf)
+ return size;
+ }
+
+ *outbuf = run_textconv(driver->textconv, df, &size);
+ if (!*outbuf)
+ die("unable to read files to diff");
+
+ if (driver->textconv_cache) {
+ /* ignore errors, as we might be in a readonly repository */
+ notes_cache_put(driver->textconv_cache, df->sha1, *outbuf,
+ size);
+ /*
+ * we could save up changes and flush them all at the end,
+ * but we would need an extra call after all diffing is done.
+ * Since generating a cache entry is the slow path anyway,
+ * this extra overhead probably isn't a big deal.
+ */
+ notes_cache_write(driver->textconv_cache);
+ }
+
+ return size;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-09-30 15:33:08 +0000