#include "diffcore.h"
#include "quote.h"
#include "xdiff-interface.h"
-
-static int uninteresting(struct diff_filepair *p)
-{
- if (diff_unmodified_pair(p))
- return 1;
- return 0;
-}
+#include "log-tree.h"
+#include "refs.h"
+#include "userdiff.h"
+#include "sha1-array.h"
static struct combine_diff_path *intersect_paths(struct combine_diff_path *curr, int n, int num_parent)
{
for (i = 0; i < q->nr; i++) {
int len;
const char *path;
- if (uninteresting(q->queue[i]))
+ if (diff_unmodified_pair(q->queue[i]))
continue;
path = q->queue[i]->two->path;
len = strlen(path);
p = xmalloc(combine_diff_path_size(num_parent, len));
- p->path = (char*) &(p->parent[num_parent]);
+ p->path = (char *) &(p->parent[num_parent]);
memcpy(p->path, path, len);
p->path[len] = 0;
p->len = len;
memset(p->parent, 0,
sizeof(p->parent[0]) * num_parent);
- memcpy(p->sha1, q->queue[i]->two->sha1, 20);
+ hashcpy(p->sha1, q->queue[i]->two->sha1);
p->mode = q->queue[i]->two->mode;
- memcpy(p->parent[n].sha1, q->queue[i]->one->sha1, 20);
+ hashcpy(p->parent[n].sha1, q->queue[i]->one->sha1);
p->parent[n].mode = q->queue[i]->one->mode;
p->parent[n].status = q->queue[i]->status;
*tail = p;
const char *path;
int len;
- if (uninteresting(q->queue[i]))
+ if (diff_unmodified_pair(q->queue[i]))
continue;
path = q->queue[i]->two->path;
len = strlen(path);
if (len == p->len && !memcmp(path, p->path, len)) {
found = 1;
- memcpy(p->parent[n].sha1,
- q->queue[i]->one->sha1, 20);
+ hashcpy(p->parent[n].sha1, q->queue[i]->one->sha1);
p->parent[n].mode = q->queue[i]->one->mode;
p->parent[n].status = q->queue[i]->status;
break;
/* Lines surviving in the merge result */
struct sline {
struct lline *lost_head, **lost_tail;
+ struct lline *next_lost;
char *bol;
int len;
/* bit 0 up to (N-1) are on if the parent has this line (i.e.
* we did not change it).
* bit N is used for "interesting" lines, including context.
+ * bit (N+1) is used for "do not show deletion before this".
*/
unsigned long flag;
unsigned long *p_lno;
};
-static char *grab_blob(const unsigned char *sha1, unsigned long *size)
+static char *grab_blob(const unsigned char *sha1, unsigned int mode,
+ unsigned long *size, struct userdiff_driver *textconv,
+ const char *path)
{
char *blob;
- char type[20];
- if (!memcmp(sha1, null_sha1, 20)) {
+ enum object_type type;
+
+ if (S_ISGITLINK(mode)) {
+ blob = xmalloc(100);
+ *size = snprintf(blob, 100,
+ "Subproject commit %s\n", sha1_to_hex(sha1));
+ } else if (is_null_sha1(sha1)) {
/* deleted blob */
*size = 0;
return xcalloc(1, 1);
+ } else if (textconv) {
+ struct diff_filespec *df = alloc_filespec(path);
+ fill_filespec(df, sha1, mode);
+ *size = fill_textconv(textconv, df, &blob);
+ free_filespec(df);
+ } else {
+ blob = read_sha1_file(sha1, &type, size);
+ if (type != OBJ_BLOB)
+ die("object '%s' is not a blob!", sha1_to_hex(sha1));
}
- blob = read_sha1_file(sha1, type, size);
- if (strcmp(type, blob_type))
- die("object '%s' is not a blob!", sha1_to_hex(sha1));
return blob;
}
/* Check to see if we can squash things */
if (sline->lost_head) {
- struct lline *last_one = NULL;
- /* We cannot squash it with earlier one */
- for (lline = sline->lost_head;
- lline;
- lline = lline->next)
- if (lline->parent_map & this_mask)
- last_one = lline;
- lline = last_one ? last_one->next : sline->lost_head;
+ lline = sline->next_lost;
while (lline) {
if (lline->len == len &&
!memcmp(lline->line, line, len)) {
lline->parent_map |= this_mask;
+ sline->next_lost = lline->next;
return;
}
lline = lline->next;
lline->line[len] = 0;
*sline->lost_tail = lline;
sline->lost_tail = &lline->next;
+ sline->next_lost = NULL;
}
struct combine_diff_state {
- struct xdiff_emit_state xm;
-
unsigned int lno;
int ob, on, nb, nn;
unsigned long nmask;
&state->nb, &state->nn))
return;
state->lno = state->nb;
- if (!state->nb)
- /* @@ -1,2 +0,0 @@ to remove the
- * first two lines...
- */
- state->nb = 1;
- if (state->nn == 0)
+ if (state->nn == 0) {
/* @@ -X,Y +N,0 @@ removed Y lines
* that would have come *after* line N
* in the result. Our lost buckets hang
* to the line after the removed lines,
+ *
+ * Note that this is correct even when N == 0,
+ * in which case the hunk removes the first
+ * line in the file.
*/
state->lost_bucket = &state->sline[state->nb];
- else
+ if (!state->nb)
+ state->nb = 1;
+ } else {
state->lost_bucket = &state->sline[state->nb-1];
+ }
if (!state->sline[state->nb-1].p_lno)
state->sline[state->nb-1].p_lno =
xcalloc(state->num_parent,
sizeof(unsigned long));
state->sline[state->nb-1].p_lno[state->n] = state->ob;
+ state->lost_bucket->next_lost = state->lost_bucket->lost_head;
return;
}
if (!state->lost_bucket)
}
}
-static void combine_diff(const unsigned char *parent, mmfile_t *result_file,
- struct sline *sline, int cnt, int n, int num_parent)
+static void combine_diff(const unsigned char *parent, unsigned int mode,
+ mmfile_t *result_file,
+ struct sline *sline, unsigned int cnt, int n,
+ int num_parent, int result_deleted,
+ struct userdiff_driver *textconv,
+ const char *path)
{
unsigned int p_lno, lno;
unsigned long nmask = (1UL << n);
xpparam_t xpp;
xdemitconf_t xecfg;
mmfile_t parent_file;
- xdemitcb_t ecb;
struct combine_diff_state state;
unsigned long sz;
- if (!cnt)
+ if (result_deleted)
return; /* result deleted */
- parent_file.ptr = grab_blob(parent, &sz);
+ parent_file.ptr = grab_blob(parent, mode, &sz, textconv, path);
parent_file.size = sz;
- xpp.flags = XDF_NEED_MINIMAL;
- xecfg.ctxlen = 0;
- xecfg.flags = 0;
- ecb.outf = xdiff_outf;
- ecb.priv = &state;
+ memset(&xpp, 0, sizeof(xpp));
+ xpp.flags = 0;
+ memset(&xecfg, 0, sizeof(xecfg));
memset(&state, 0, sizeof(state));
- state.xm.consume = consume_line;
state.nmask = nmask;
state.sline = sline;
state.lno = 1;
state.num_parent = num_parent;
state.n = n;
- xdl_diff(&parent_file, result_file, &xpp, &xecfg, &ecb);
+ xdi_diff_outf(&parent_file, result_file, consume_line, &state,
+ &xpp, &xecfg);
free(parent_file.ptr);
/* Assign line numbers for this parent.
unsigned long mark,
unsigned long i,
unsigned long cnt,
- int uninteresting)
+ int look_for_uninteresting)
{
/* We have examined up to i-1 and are about to look at i.
* Find next interesting or uninteresting line. Here,
* that are surrounded by interesting() ones.
*/
while (i <= cnt)
- if (uninteresting
+ if (look_for_uninteresting
? !(sline[i].flag & mark)
: (sline[i].flag & mark))
return i;
{
unsigned long all_mask = (1UL<<num_parent) - 1;
unsigned long mark = (1UL<<num_parent);
+ unsigned long no_pre_delete = (2UL<<num_parent);
unsigned long i;
/* Two groups of interesting lines may have a short gap of
- * unintersting lines. Connect such groups to give them a
+ * uninteresting lines. Connect such groups to give them a
* bit of context.
*
* We first start from what the interesting() function says,
/* Paint a few lines before the first interesting line. */
while (j < i)
- sline[j++].flag |= mark;
+ sline[j++].flag |= mark | no_pre_delete;
again:
/* we know up to i is to be included. where does the
hunk_begin, j);
la = (la + context < cnt + 1) ?
(la + context) : cnt + 1;
- while (j <= --la) {
+ while (la && j <= --la) {
if (sline[la].flag & mark) {
contin = 1;
break;
return has_interesting;
}
-static void show_parent_lno(struct sline *sline, unsigned long l0, unsigned long l1, unsigned long cnt, int n)
+static void show_parent_lno(struct sline *sline, unsigned long l0, unsigned long l1, int n, unsigned long null_context)
{
l0 = sline[l0].p_lno[n];
l1 = sline[l1].p_lno[n];
- printf(" -%lu,%lu", l0, l1-l0);
+ printf(" -%lu,%lu", l0, l1-l0-null_context);
+}
+
+static int hunk_comment_line(const char *bol)
+{
+ int ch;
+
+ if (!bol)
+ return 0;
+ ch = *bol & 0xff;
+ return (isalpha(ch) || ch == '_' || ch == '$');
+}
+
+static void show_line_to_eol(const char *line, int len, const char *reset)
+{
+ int saw_cr_at_eol = 0;
+ if (len < 0)
+ len = strlen(line);
+ saw_cr_at_eol = (len && line[len-1] == '\r');
+
+ printf("%.*s%s%s\n", len - saw_cr_at_eol, line,
+ reset,
+ saw_cr_at_eol ? "\r" : "");
}
-static void dump_sline(struct sline *sline, unsigned long cnt, int num_parent)
+static void dump_sline(struct sline *sline, unsigned long cnt, int num_parent,
+ int use_color, int result_deleted)
{
unsigned long mark = (1UL<<num_parent);
+ unsigned long no_pre_delete = (2UL<<num_parent);
int i;
unsigned long lno = 0;
-
- if (!cnt)
+ const char *c_frag = diff_get_color(use_color, DIFF_FRAGINFO);
+ const char *c_func = diff_get_color(use_color, DIFF_FUNCINFO);
+ const char *c_new = diff_get_color(use_color, DIFF_FILE_NEW);
+ const char *c_old = diff_get_color(use_color, DIFF_FILE_OLD);
+ const char *c_plain = diff_get_color(use_color, DIFF_PLAIN);
+ const char *c_reset = diff_get_color(use_color, DIFF_RESET);
+
+ if (result_deleted)
return; /* result deleted */
while (1) {
- struct sline *sl = &sline[lno];
unsigned long hunk_end;
unsigned long rlines;
- while (lno <= cnt && !(sline[lno].flag & mark))
+ const char *hunk_comment = NULL;
+ unsigned long null_context = 0;
+
+ while (lno <= cnt && !(sline[lno].flag & mark)) {
+ if (hunk_comment_line(sline[lno].bol))
+ hunk_comment = sline[lno].bol;
lno++;
+ }
if (cnt < lno)
break;
else {
rlines = hunk_end - lno;
if (cnt < hunk_end)
rlines--; /* pointing at the last delete hunk */
+
+ if (!context) {
+ /*
+ * Even when running with --unified=0, all
+ * lines in the hunk needs to be processed in
+ * the loop below in order to show the
+ * deletion recorded in lost_head. However,
+ * we do not want to show the resulting line
+ * with all blank context markers in such a
+ * case. Compensate.
+ */
+ unsigned long j;
+ for (j = lno; j < hunk_end; j++)
+ if (!(sline[j].flag & (mark-1)))
+ null_context++;
+ rlines -= null_context;
+ }
+
+ fputs(c_frag, stdout);
for (i = 0; i <= num_parent; i++) putchar(combine_marker);
for (i = 0; i < num_parent; i++)
- show_parent_lno(sline, lno, hunk_end, cnt, i);
+ show_parent_lno(sline, lno, hunk_end, i, null_context);
printf(" +%lu,%lu ", lno+1, rlines);
for (i = 0; i <= num_parent; i++) putchar(combine_marker);
- putchar('\n');
+
+ if (hunk_comment) {
+ int comment_end = 0;
+ for (i = 0; i < 40; i++) {
+ int ch = hunk_comment[i] & 0xff;
+ if (!ch || ch == '\n')
+ break;
+ if (!isspace(ch))
+ comment_end = i;
+ }
+ if (comment_end)
+ printf("%s%s %s%s", c_reset,
+ c_plain, c_reset,
+ c_func);
+ for (i = 0; i < comment_end; i++)
+ putchar(hunk_comment[i]);
+ }
+
+ printf("%s\n", c_reset);
while (lno < hunk_end) {
struct lline *ll;
int j;
unsigned long p_mask;
- sl = &sline[lno++];
- ll = sl->lost_head;
+ struct sline *sl = &sline[lno++];
+ ll = (sl->flag & no_pre_delete) ? NULL : sl->lost_head;
while (ll) {
+ fputs(c_old, stdout);
for (j = 0; j < num_parent; j++) {
if (ll->parent_map & (1UL<<j))
putchar('-');
else
putchar(' ');
}
- puts(ll->line);
+ show_line_to_eol(ll->line, -1, c_reset);
ll = ll->next;
}
if (cnt < lno)
break;
p_mask = 1;
+ if (!(sl->flag & (mark-1))) {
+ /*
+ * This sline was here to hang the
+ * lost lines in front of it.
+ */
+ if (!context)
+ continue;
+ fputs(c_plain, stdout);
+ }
+ else
+ fputs(c_new, stdout);
for (j = 0; j < num_parent; j++) {
if (p_mask & sl->flag)
putchar('+');
putchar(' ');
p_mask <<= 1;
}
- printf("%.*s\n", sl->len, sl->bol);
+ show_line_to_eol(sl->bol, sl->len, c_reset);
}
}
}
sline->p_lno[i] = sline->p_lno[j];
}
-static int show_patch_diff(struct combine_diff_path *elem, int num_parent,
- int dense, const char *header,
- struct diff_options *opt)
+static void dump_quoted_path(const char *head,
+ const char *prefix,
+ const char *path,
+ const char *c_meta, const char *c_reset)
{
+ static struct strbuf buf = STRBUF_INIT;
+
+ strbuf_reset(&buf);
+ strbuf_addstr(&buf, c_meta);
+ strbuf_addstr(&buf, head);
+ quote_two_c_style(&buf, prefix, path, 0);
+ strbuf_addstr(&buf, c_reset);
+ puts(buf.buf);
+}
+
+static void show_combined_header(struct combine_diff_path *elem,
+ int num_parent,
+ int dense,
+ struct rev_info *rev,
+ int mode_differs,
+ int show_file_header)
+{
+ struct diff_options *opt = &rev->diffopt;
+ int abbrev = DIFF_OPT_TST(opt, FULL_INDEX) ? 40 : DEFAULT_ABBREV;
+ const char *a_prefix = opt->a_prefix ? opt->a_prefix : "a/";
+ const char *b_prefix = opt->b_prefix ? opt->b_prefix : "b/";
+ const char *c_meta = diff_get_color_opt(opt, DIFF_METAINFO);
+ const char *c_reset = diff_get_color_opt(opt, DIFF_RESET);
+ const char *abb;
+ int added = 0;
+ int deleted = 0;
+ int i;
+
+ if (rev->loginfo && !rev->no_commit_id)
+ show_log(rev);
+
+ dump_quoted_path(dense ? "diff --cc " : "diff --combined ",
+ "", elem->path, c_meta, c_reset);
+ printf("%sindex ", c_meta);
+ for (i = 0; i < num_parent; i++) {
+ abb = find_unique_abbrev(elem->parent[i].sha1,
+ abbrev);
+ printf("%s%s", i ? "," : "", abb);
+ }
+ abb = find_unique_abbrev(elem->sha1, abbrev);
+ printf("..%s%s\n", abb, c_reset);
+
+ if (mode_differs) {
+ deleted = !elem->mode;
+
+ /* We say it was added if nobody had it */
+ added = !deleted;
+ for (i = 0; added && i < num_parent; i++)
+ if (elem->parent[i].status !=
+ DIFF_STATUS_ADDED)
+ added = 0;
+ if (added)
+ printf("%snew file mode %06o",
+ c_meta, elem->mode);
+ else {
+ if (deleted)
+ printf("%sdeleted file ", c_meta);
+ printf("mode ");
+ for (i = 0; i < num_parent; i++) {
+ printf("%s%06o", i ? "," : "",
+ elem->parent[i].mode);
+ }
+ if (elem->mode)
+ printf("..%06o", elem->mode);
+ }
+ printf("%s\n", c_reset);
+ }
+
+ if (!show_file_header)
+ return;
+
+ if (added)
+ dump_quoted_path("--- ", "", "/dev/null",
+ c_meta, c_reset);
+ else
+ dump_quoted_path("--- ", a_prefix, elem->path,
+ c_meta, c_reset);
+ if (deleted)
+ dump_quoted_path("+++ ", "", "/dev/null",
+ c_meta, c_reset);
+ else
+ dump_quoted_path("+++ ", b_prefix, elem->path,
+ c_meta, c_reset);
+}
+
+static void show_patch_diff(struct combine_diff_path *elem, int num_parent,
+ int dense, int working_tree_file,
+ struct rev_info *rev)
+{
+ struct diff_options *opt = &rev->diffopt;
unsigned long result_size, cnt, lno;
+ int result_deleted = 0;
char *result, *cp;
struct sline *sline; /* survived lines */
int mode_differs = 0;
- int i, show_hunks, shown_header = 0;
- int working_tree_file = !memcmp(elem->sha1, null_sha1, 20);
- int abbrev = opt->full_index ? 40 : DEFAULT_ABBREV;
+ int i, show_hunks;
mmfile_t result_file;
+ struct userdiff_driver *userdiff;
+ struct userdiff_driver *textconv = NULL;
+ int is_binary;
+
+ context = opt->context;
+ userdiff = userdiff_find_by_path(elem->path);
+ if (!userdiff)
+ userdiff = userdiff_find_by_name("default");
+ if (DIFF_OPT_TST(opt, ALLOW_TEXTCONV))
+ textconv = userdiff_get_textconv(userdiff);
/* Read the result of merge first */
if (!working_tree_file)
- result = grab_blob(elem->sha1, &result_size);
+ result = grab_blob(elem->sha1, elem->mode, &result_size,
+ textconv, elem->path);
else {
/* Used by diff-tree to read from the working tree */
struct stat st;
- int fd;
- if (0 <= (fd = open(elem->path, O_RDONLY)) &&
- !fstat(fd, &st)) {
- int len = st.st_size;
- int cnt = 0;
+ int fd = -1;
+
+ if (lstat(elem->path, &st) < 0)
+ goto deleted_file;
+
+ if (S_ISLNK(st.st_mode)) {
+ struct strbuf buf = STRBUF_INIT;
+
+ if (strbuf_readlink(&buf, elem->path, st.st_size) < 0) {
+ error("readlink(%s): %s", elem->path,
+ strerror(errno));
+ return;
+ }
+ result_size = buf.len;
+ result = strbuf_detach(&buf, NULL);
+ elem->mode = canon_mode(st.st_mode);
+ } else if (S_ISDIR(st.st_mode)) {
+ unsigned char sha1[20];
+ if (resolve_gitlink_ref(elem->path, "HEAD", sha1) < 0)
+ result = grab_blob(elem->sha1, elem->mode,
+ &result_size, NULL, NULL);
+ else
+ result = grab_blob(sha1, elem->mode,
+ &result_size, NULL, NULL);
+ } else if (textconv) {
+ struct diff_filespec *df = alloc_filespec(elem->path);
+ fill_filespec(df, null_sha1, st.st_mode);
+ result_size = fill_textconv(textconv, df, &result);
+ free_filespec(df);
+ } else if (0 <= (fd = open(elem->path, O_RDONLY))) {
+ size_t len = xsize_t(st.st_size);
+ ssize_t done;
+ int is_file, i;
elem->mode = canon_mode(st.st_mode);
+ /* if symlinks don't work, assume symlink if all parents
+ * are symlinks
+ */
+ is_file = has_symlinks;
+ for (i = 0; !is_file && i < num_parent; i++)
+ is_file = !S_ISLNK(elem->parent[i].mode);
+ if (!is_file)
+ elem->mode = canon_mode(S_IFLNK);
+
result_size = len;
result = xmalloc(len + 1);
- while (cnt < len) {
- int done = xread(fd, result+cnt, len-cnt);
- if (done == 0)
- break;
- if (done < 0)
- die("read error '%s'", elem->path);
- cnt += done;
- }
+
+ done = read_in_full(fd, result, len);
+ if (done < 0)
+ die_errno("read error '%s'", elem->path);
+ else if (done < len)
+ die("early EOF '%s'", elem->path);
+
result[len] = 0;
+
+ /* If not a fake symlink, apply filters, e.g. autocrlf */
+ if (is_file) {
+ struct strbuf buf = STRBUF_INIT;
+
+ if (convert_to_git(elem->path, result, len, &buf, safe_crlf)) {
+ free(result);
+ result = strbuf_detach(&buf, &len);
+ result_size = len;
+ }
+ }
}
else {
- /* deleted file */
+ deleted_file:
+ result_deleted = 1;
result_size = 0;
elem->mode = 0;
- result = xmalloc(1);
- result[0] = 0;
+ result = xcalloc(1, 1);
}
+
if (0 <= fd)
close(fd);
}
- for (cnt = 0, cp = result; cp - result < result_size; cp++) {
+ for (i = 0; i < num_parent; i++) {
+ if (elem->parent[i].mode != elem->mode) {
+ mode_differs = 1;
+ break;
+ }
+ }
+
+ if (textconv)
+ is_binary = 0;
+ else if (userdiff->binary != -1)
+ is_binary = userdiff->binary;
+ else {
+ is_binary = buffer_is_binary(result, result_size);
+ for (i = 0; !is_binary && i < num_parent; i++) {
+ char *buf;
+ unsigned long size;
+ buf = grab_blob(elem->parent[i].sha1,
+ elem->parent[i].mode,
+ &size, NULL, NULL);
+ if (buffer_is_binary(buf, size))
+ is_binary = 1;
+ free(buf);
+ }
+ }
+ if (is_binary) {
+ show_combined_header(elem, num_parent, dense, rev,
+ mode_differs, 0);
+ printf("Binary files differ\n");
+ free(result);
+ return;
+ }
+
+ for (cnt = 0, cp = result; cp < result + result_size; cp++) {
if (*cp == '\n')
cnt++;
}
sline[lno].lost_tail = &sline[lno].lost_head;
sline[lno].flag = 0;
}
- for (lno = 0, cp = result; cp - result < result_size; cp++) {
+ for (lno = 0, cp = result; cp < result + result_size; cp++) {
if (*cp == '\n') {
sline[lno].len = cp - sline[lno].bol;
lno++;
for (i = 0; i < num_parent; i++) {
int j;
for (j = 0; j < i; j++) {
- if (!memcmp(elem->parent[i].sha1,
- elem->parent[j].sha1, 20)) {
+ if (!hashcmp(elem->parent[i].sha1,
+ elem->parent[j].sha1)) {
reuse_combine_diff(sline, cnt, i, j);
break;
}
}
if (i <= j)
- combine_diff(elem->parent[i].sha1, &result_file, sline,
- cnt, i, num_parent);
- if (elem->parent[i].mode != elem->mode)
- mode_differs = 1;
+ combine_diff(elem->parent[i].sha1,
+ elem->parent[i].mode,
+ &result_file, sline,
+ cnt, i, num_parent, result_deleted,
+ textconv, elem->path);
}
show_hunks = make_hunks(sline, cnt, num_parent, dense);
if (show_hunks || mode_differs || working_tree_file) {
- const char *abb;
-
- if (header) {
- shown_header++;
- printf("%s%c", header, opt->line_termination);
- }
- printf("diff --%s ", dense ? "cc" : "combined");
- if (quote_c_style(elem->path, NULL, NULL, 0))
- quote_c_style(elem->path, NULL, stdout, 0);
- else
- printf("%s", elem->path);
- putchar('\n');
- printf("index ");
- for (i = 0; i < num_parent; i++) {
- abb = find_unique_abbrev(elem->parent[i].sha1,
- abbrev);
- printf("%s%s", i ? "," : "", abb);
- }
- abb = find_unique_abbrev(elem->sha1, abbrev);
- printf("..%s\n", abb);
-
- if (mode_differs) {
- int added = !!elem->mode;
- for (i = 0; added && i < num_parent; i++)
- if (elem->parent[i].status !=
- DIFF_STATUS_ADDED)
- added = 0;
- if (added)
- printf("new file mode %06o", elem->mode);
- else {
- if (!elem->mode)
- printf("deleted file ");
- printf("mode ");
- for (i = 0; i < num_parent; i++) {
- printf("%s%06o", i ? "," : "",
- elem->parent[i].mode);
- }
- if (elem->mode)
- printf("..%06o", elem->mode);
- }
- putchar('\n');
- }
- dump_sline(sline, cnt, num_parent);
+ show_combined_header(elem, num_parent, dense, rev,
+ mode_differs, 1);
+ dump_sline(sline, cnt, num_parent,
+ opt->use_color, result_deleted);
}
free(result);
- for (i = 0; i < cnt; i++) {
- if (sline[i].lost_head) {
- struct lline *ll = sline[i].lost_head;
+ for (lno = 0; lno < cnt; lno++) {
+ if (sline[lno].lost_head) {
+ struct lline *ll = sline[lno].lost_head;
while (ll) {
struct lline *tmp = ll;
ll = ll->next;
}
free(sline[0].p_lno);
free(sline);
- return shown_header;
}
#define COLONS "::::::::::::::::::::::::::::::::"
-static void show_raw_diff(struct combine_diff_path *p, int num_parent, const char *header, struct diff_options *opt)
+static void show_raw_diff(struct combine_diff_path *p, int num_parent, struct rev_info *rev)
{
+ struct diff_options *opt = &rev->diffopt;
int i, offset;
const char *prefix;
int line_termination, inter_name_termination;
if (!line_termination)
inter_name_termination = 0;
- if (header)
- printf("%s%c", header, line_termination);
+ if (rev->loginfo && !rev->no_commit_id)
+ show_log(rev);
- if (opt->output_format == DIFF_FORMAT_RAW) {
+ if (opt->output_format & DIFF_FORMAT_RAW) {
offset = strlen(COLONS) - num_parent;
if (offset < 0)
offset = 0;
printf(" %s ", diff_unique_abbrev(p->sha1, opt->abbrev));
}
- if (opt->output_format == DIFF_FORMAT_RAW ||
- opt->output_format == DIFF_FORMAT_NAME_STATUS) {
+ if (opt->output_format & (DIFF_FORMAT_RAW | DIFF_FORMAT_NAME_STATUS)) {
for (i = 0; i < num_parent; i++)
putchar(p->parent[i].status);
putchar(inter_name_termination);
}
- if (line_termination) {
- if (quote_c_style(p->path, NULL, NULL, 0))
- quote_c_style(p->path, NULL, stdout, 0);
- else
- printf("%s", p->path);
- putchar(line_termination);
- }
- else {
- printf("%s%c", p->path, line_termination);
- }
+ write_name_quoted(p->path, stdout, line_termination);
}
-int show_combined_diff(struct combine_diff_path *p,
+/*
+ * The result (p->elem) is from the working tree and their
+ * parents are typically from multiple stages during a merge
+ * (i.e. diff-files) or the state in HEAD and in the index
+ * (i.e. diff-index).
+ */
+void show_combined_diff(struct combine_diff_path *p,
int num_parent,
int dense,
- const char *header,
- struct diff_options *opt)
+ struct rev_info *rev)
{
+ struct diff_options *opt = &rev->diffopt;
if (!p->len)
- return 0;
- switch (opt->output_format) {
- case DIFF_FORMAT_RAW:
- case DIFF_FORMAT_NAME_STATUS:
- case DIFF_FORMAT_NAME:
- show_raw_diff(p, num_parent, header, opt);
- return 1;
+ return;
+ if (opt->output_format & (DIFF_FORMAT_RAW |
+ DIFF_FORMAT_NAME |
+ DIFF_FORMAT_NAME_STATUS))
+ show_raw_diff(p, num_parent, rev);
+ else if (opt->output_format & DIFF_FORMAT_PATCH)
+ show_patch_diff(p, num_parent, dense, 1, rev);
+}
- default:
- case DIFF_FORMAT_PATCH:
- return show_patch_diff(p, num_parent, dense, header, opt);
+static void free_combined_pair(struct diff_filepair *pair)
+{
+ free(pair->two);
+ free(pair);
+}
+
+/*
+ * A combine_diff_path expresses N parents on the LHS against 1 merge
+ * result. Synthesize a diff_filepair that has N entries on the "one"
+ * side and 1 entry on the "two" side.
+ *
+ * In the future, we might want to add more data to combine_diff_path
+ * so that we can fill fields we are ignoring (most notably, size) here,
+ * but currently nobody uses it, so this should suffice for now.
+ */
+static struct diff_filepair *combined_pair(struct combine_diff_path *p,
+ int num_parent)
+{
+ int i;
+ struct diff_filepair *pair;
+ struct diff_filespec *pool;
+
+ pair = xmalloc(sizeof(*pair));
+ pool = xcalloc(num_parent + 1, sizeof(struct diff_filespec));
+ pair->one = pool + 1;
+ pair->two = pool;
+
+ for (i = 0; i < num_parent; i++) {
+ pair->one[i].path = p->path;
+ pair->one[i].mode = p->parent[i].mode;
+ hashcpy(pair->one[i].sha1, p->parent[i].sha1);
+ pair->one[i].sha1_valid = !is_null_sha1(p->parent[i].sha1);
+ pair->one[i].has_more_entries = 1;
}
+ pair->one[num_parent - 1].has_more_entries = 0;
+
+ pair->two->path = p->path;
+ pair->two->mode = p->mode;
+ hashcpy(pair->two->sha1, p->sha1);
+ pair->two->sha1_valid = !is_null_sha1(p->sha1);
+ return pair;
}
-const char *diff_tree_combined_merge(const unsigned char *sha1,
- const char *header, int dense,
- struct diff_options *opt)
+static void handle_combined_callback(struct diff_options *opt,
+ struct combine_diff_path *paths,
+ int num_parent,
+ int num_paths)
{
- struct commit *commit = lookup_commit(sha1);
+ struct combine_diff_path *p;
+ struct diff_queue_struct q;
+ int i;
+
+ q.queue = xcalloc(num_paths, sizeof(struct diff_filepair *));
+ q.alloc = num_paths;
+ q.nr = num_paths;
+ for (i = 0, p = paths; p; p = p->next) {
+ if (!p->len)
+ continue;
+ q.queue[i++] = combined_pair(p, num_parent);
+ }
+ opt->format_callback(&q, opt, opt->format_callback_data);
+ for (i = 0; i < num_paths; i++)
+ free_combined_pair(q.queue[i]);
+ free(q.queue);
+}
+
+void diff_tree_combined(const unsigned char *sha1,
+ const struct sha1_array *parents,
+ int dense,
+ struct rev_info *rev)
+{
+ struct diff_options *opt = &rev->diffopt;
struct diff_options diffopts;
- struct commit_list *parents;
struct combine_diff_path *p, *paths = NULL;
- int num_parent, i, num_paths;
+ int i, num_paths, needsep, show_log_first, num_parent = parents->nr;
diffopts = *opt;
diffopts.output_format = DIFF_FORMAT_NO_OUTPUT;
- diffopts.with_raw = 0;
- diffopts.recursive = 1;
-
- /* count parents */
- for (parents = commit->parents, num_parent = 0;
- parents;
- parents = parents->next, num_parent++)
- ; /* nothing */
+ DIFF_OPT_SET(&diffopts, RECURSIVE);
+ DIFF_OPT_CLR(&diffopts, ALLOW_EXTERNAL);
+ show_log_first = !!rev->loginfo && !rev->no_commit_id;
+ needsep = 0;
/* find set of paths that everybody touches */
- for (parents = commit->parents, i = 0;
- parents;
- parents = parents->next, i++) {
- struct commit *parent = parents->item;
- diff_tree_sha1(parent->object.sha1, commit->object.sha1, "",
- &diffopts);
+ for (i = 0; i < num_parent; i++) {
+ /* show stat against the first parent even
+ * when doing combined diff.
+ */
+ int stat_opt = (opt->output_format &
+ (DIFF_FORMAT_NUMSTAT|DIFF_FORMAT_DIFFSTAT));
+ if (i == 0 && stat_opt)
+ diffopts.output_format = stat_opt;
+ else
+ diffopts.output_format = DIFF_FORMAT_NO_OUTPUT;
+ diff_tree_sha1(parents->sha1[i], sha1, "", &diffopts);
diffcore_std(&diffopts);
paths = intersect_paths(paths, i, num_parent);
+
+ if (show_log_first && i == 0) {
+ show_log(rev);
+ if (rev->verbose_header && opt->output_format)
+ putchar(opt->line_termination);
+ }
diff_flush(&diffopts);
}
num_paths++;
}
if (num_paths) {
- if (opt->with_raw) {
- int saved_format = opt->output_format;
- opt->output_format = DIFF_FORMAT_RAW;
+ if (opt->output_format & (DIFF_FORMAT_RAW |
+ DIFF_FORMAT_NAME |
+ DIFF_FORMAT_NAME_STATUS)) {
for (p = paths; p; p = p->next) {
- if (show_combined_diff(p, num_parent, dense,
- header, opt))
- header = NULL;
+ if (p->len)
+ show_raw_diff(p, num_parent, rev);
}
- opt->output_format = saved_format;
- putchar(opt->line_termination);
+ needsep = 1;
}
- for (p = paths; p; p = p->next) {
- if (show_combined_diff(p, num_parent, dense,
- header, opt))
- header = NULL;
+ else if (opt->output_format &
+ (DIFF_FORMAT_NUMSTAT|DIFF_FORMAT_DIFFSTAT))
+ needsep = 1;
+ else if (opt->output_format & DIFF_FORMAT_CALLBACK)
+ handle_combined_callback(opt, paths, num_parent, num_paths);
+
+ if (opt->output_format & DIFF_FORMAT_PATCH) {
+ if (needsep)
+ putchar(opt->line_termination);
+ for (p = paths; p; p = p->next) {
+ if (p->len)
+ show_patch_diff(p, num_parent, dense,
+ 0, rev);
+ }
}
}
paths = paths->next;
free(tmp);
}
- return header;
+}
+
+void diff_tree_combined_merge(const struct commit *commit, int dense,
+ struct rev_info *rev)
+{
+ struct commit_list *parent = commit->parents;
+ struct sha1_array parents = SHA1_ARRAY_INIT;
+
+ while (parent) {
+ sha1_array_append(&parents, parent->item->object.sha1);
+ parent = parent->next;
+ }
+ diff_tree_combined(commit->object.sha1, &parents, dense, rev);
+ sha1_array_clear(&parents);
}