static char *grab_blob(const unsigned char *sha1, unsigned long *size)
{
char *blob;
- char type[20];
+ enum object_type type;
if (is_null_sha1(sha1)) {
/* deleted blob */
*size = 0;
return xcalloc(1, 1);
}
- blob = read_sha1_file(sha1, type, size);
- if (strcmp(type, blob_type))
+ blob = read_sha1_file(sha1, &type, size);
+ if (type != OBJ_BLOB)
die("object '%s' is not a blob!", sha1_to_hex(sha1));
return blob;
}
parent_file.ptr = grab_blob(parent, &sz);
parent_file.size = sz;
xpp.flags = XDF_NEED_MINIMAL;
- xecfg.ctxlen = 0;
- xecfg.flags = 0;
+ memset(&xecfg, 0, sizeof(xecfg));
ecb.outf = xdiff_outf;
ecb.priv = &state;
memset(&state, 0, sizeof(state));
state.num_parent = num_parent;
state.n = n;
- xdl_diff(&parent_file, result_file, &xpp, &xecfg, &ecb);
+ xdi_diff(&parent_file, result_file, &xpp, &xecfg, &ecb);
free(parent_file.ptr);
/* Assign line numbers for this parent.
return has_interesting;
}
-static void show_parent_lno(struct sline *sline, unsigned long l0, unsigned long l1, 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)
unsigned long hunk_end;
unsigned long rlines;
const char *hunk_comment = NULL;
+ unsigned long null_context = 0;
while (lno <= cnt && !(sline[lno].flag & mark)) {
if (hunk_comment_line(sline[lno].bol))
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, 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);
if (cnt < lno)
break;
p_mask = 1;
- if (!(sl->flag & (mark-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++) {
sline->p_lno[i] = sline->p_lno[j];
}
-static void dump_quoted_path(const char *prefix, const char *path,
+static void dump_quoted_path(const char *head,
+ const char *prefix,
+ const char *path,
const char *c_meta, const char *c_reset)
{
- printf("%s%s", c_meta, prefix);
- if (quote_c_style(path, NULL, NULL, 0))
- quote_c_style(path, NULL, stdout, 0);
- else
- printf("%s", path);
- printf("%s\n", 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_patch_diff(struct combine_diff_path *elem, int num_parent,
int mode_differs = 0;
int i, show_hunks;
int working_tree_file = is_null_sha1(elem->sha1);
- int abbrev = opt->full_index ? 40 : DEFAULT_ABBREV;
+ int abbrev = DIFF_OPT_TST(opt, FULL_INDEX) ? 40 : DEFAULT_ABBREV;
mmfile_t result_file;
context = opt->context;
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 sz = 0;
+ int fd = -1;
+
+ if (lstat(elem->path, &st) < 0)
+ goto deleted_file;
+
+ if (S_ISLNK(st.st_mode)) {
+ size_t len = xsize_t(st.st_size);
+ result_size = len;
+ result = xmalloc(len + 1);
+ if (result_size != readlink(elem->path, result, len)) {
+ error("readlink(%s): %s", elem->path,
+ strerror(errno));
+ return;
+ }
+ result[len] = 0;
+ elem->mode = canon_mode(st.st_mode);
+ }
+ else if (0 <= (fd = open(elem->path, O_RDONLY)) &&
+ !fstat(fd, &st)) {
+ size_t len = xsize_t(st.st_size);
+ size_t sz = 0;
+ 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 (sz < len) {
- int done = xread(fd, result+sz, len-sz);
+ ssize_t done = xread(fd, result+sz, len-sz);
if (done == 0)
break;
if (done < 0)
result[len] = 0;
}
else {
- /* deleted file */
+ deleted_file:
result_size = 0;
elem->mode = 0;
result = xcalloc(1, 1);
}
+
if (0 <= fd)
close(fd);
}
if (show_hunks || mode_differs || working_tree_file) {
const char *abb;
- int use_color = opt->color_diff;
+ int use_color = DIFF_OPT_TST(opt, COLOR_DIFF);
const char *c_meta = diff_get_color(use_color, DIFF_METAINFO);
const char *c_reset = diff_get_color(use_color, DIFF_RESET);
int added = 0;
if (rev->loginfo && !rev->no_commit_id)
show_log(rev, opt->msg_sep);
dump_quoted_path(dense ? "diff --cc " : "diff --combined ",
- elem->path, c_meta, c_reset);
+ "", 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,
printf("%s\n", c_reset);
}
if (added)
- dump_quoted_path("--- /dev/", "null", c_meta, c_reset);
+ dump_quoted_path("--- ", "", "/dev/null",
+ c_meta, c_reset);
else
- dump_quoted_path("--- a/", elem->path, c_meta, c_reset);
+ dump_quoted_path("--- ", opt->a_prefix, elem->path,
+ c_meta, c_reset);
if (deleted)
- dump_quoted_path("+++ /dev/", "null", c_meta, c_reset);
+ dump_quoted_path("+++ ", "", "/dev/null",
+ c_meta, c_reset);
else
- dump_quoted_path("+++ b/", elem->path, c_meta, c_reset);
- dump_sline(sline, cnt, num_parent, opt->color_diff);
+ dump_quoted_path("+++ ", opt->b_prefix, elem->path,
+ c_meta, c_reset);
+ dump_sline(sline, cnt, num_parent,
+ DIFF_OPT_TST(opt, COLOR_DIFF));
}
free(result);
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);
}
void show_combined_diff(struct combine_diff_path *p,
diffopts = *opt;
diffopts.output_format = DIFF_FORMAT_NO_OUTPUT;
- diffopts.recursive = 1;
+ DIFF_OPT_SET(&diffopts, RECURSIVE);
+ DIFF_OPT_CLR(&diffopts, ALLOW_EXTERNAL);
show_log_first = !!rev->loginfo && !rev->no_commit_id;
needsep = 0;
/* show stat against the first parent even
* when doing combined diff.
*/
- if (i == 0 && opt->output_format & DIFF_FORMAT_DIFFSTAT)
- diffopts.output_format = DIFF_FORMAT_DIFFSTAT;
+ 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(parent[i], sha1, "", &diffopts);
}
needsep = 1;
}
- else if (opt->output_format & DIFF_FORMAT_DIFFSTAT)
+ else if (opt->output_format &
+ (DIFF_FORMAT_NUMSTAT|DIFF_FORMAT_DIFFSTAT))
needsep = 1;
if (opt->output_format & DIFF_FORMAT_PATCH) {
if (needsep)