#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)
{
unsigned long *p_lno;
};
-static char *grab_blob(const unsigned char *sha1, unsigned int mode, 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;
enum object_type type;
/* 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)
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)
+ int num_parent, int result_deleted,
+ struct userdiff_driver *textconv,
+ const char *path)
{
unsigned int p_lno, lno;
unsigned long nmask = (1UL << n);
if (result_deleted)
return; /* result deleted */
- parent_file.ptr = grab_blob(parent, mode, &sz);
+ parent_file.ptr = grab_blob(parent, mode, &sz, textconv, path);
parent_file.size = sz;
memset(&xpp, 0, sizeof(xpp));
xpp.flags = 0;
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;
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/";
- 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);
+ 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;
}
static void show_patch_diff(struct combine_diff_path *elem, int num_parent,
- int dense, struct rev_info *rev)
+ int dense, int working_tree_file,
+ struct rev_info *rev)
{
struct diff_options *opt = &rev->diffopt;
unsigned long result_size, cnt, lno;
struct sline *sline; /* survived lines */
int mode_differs = 0;
int i, show_hunks;
- int working_tree_file = is_null_sha1(elem->sha1);
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, elem->mode, &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;
} 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);
+ result = grab_blob(elem->sha1, elem->mode,
+ &result_size, NULL, NULL);
else
- result = grab_blob(sha1, elem->mode, &result_size);
+ 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;
}
}
- if (userdiff->binary != -1)
+ if (textconv)
+ is_binary = 0;
+ else if (userdiff->binary != -1)
is_binary = userdiff->binary;
else {
is_binary = buffer_is_binary(result, result_size);
unsigned long size;
buf = grab_blob(elem->parent[i].sha1,
elem->parent[i].mode,
- &size);
+ &size, NULL, NULL);
if (buffer_is_binary(buf, size))
is_binary = 1;
free(buf);
combine_diff(elem->parent[i].sha1,
elem->parent[i].mode,
&result_file, sline,
- cnt, i, num_parent, result_deleted);
+ cnt, i, num_parent, result_deleted,
+ textconv, elem->path);
}
show_hunks = make_hunks(sline, cnt, num_parent, dense);
show_combined_header(elem, num_parent, dense, rev,
mode_differs, 1);
dump_sline(sline, cnt, num_parent,
- DIFF_OPT_TST(opt, COLOR_DIFF), result_deleted);
+ opt->use_color, result_deleted);
}
free(result);
write_name_quoted(p->path, stdout, line_termination);
}
+/*
+ * 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,
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, rev);
+ show_patch_diff(p, num_parent, dense, 1, rev);
+}
+
+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;
+}
+
+static void handle_combined_callback(struct diff_options *opt,
+ struct combine_diff_path *paths,
+ int num_parent,
+ int num_paths)
+{
+ 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 unsigned char parent[][20],
- int num_parent,
+ const struct sha1_array *parents,
int dense,
struct rev_info *rev)
{
struct diff_options *opt = &rev->diffopt;
struct diff_options diffopts;
struct combine_diff_path *p, *paths = NULL;
- int i, num_paths, needsep, show_log_first;
+ int i, num_paths, needsep, show_log_first, num_parent = parents->nr;
diffopts = *opt;
diffopts.output_format = DIFF_FORMAT_NO_OUTPUT;
diffopts.output_format = stat_opt;
else
diffopts.output_format = DIFF_FORMAT_NO_OUTPUT;
- diff_tree_sha1(parent[i], sha1, "", &diffopts);
+ diff_tree_sha1(parents->sha1[i], sha1, "", &diffopts);
diffcore_std(&diffopts);
paths = intersect_paths(paths, i, num_parent);
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,
- rev);
+ 0, rev);
}
}
}
}
}
-void diff_tree_combined_merge(const unsigned char *sha1,
- int dense, struct rev_info *rev)
+void diff_tree_combined_merge(const struct commit *commit, int dense,
+ struct rev_info *rev)
{
- int num_parent;
- const unsigned char (*parent)[20];
- struct commit *commit = lookup_commit(sha1);
- struct commit_list *parents;
-
- /* count parents */
- for (parents = commit->parents, num_parent = 0;
- parents;
- parents = parents->next, num_parent++)
- ; /* nothing */
-
- parent = xmalloc(num_parent * sizeof(*parent));
- for (parents = commit->parents, num_parent = 0;
- parents;
- parents = parents->next, num_parent++)
- hashcpy((unsigned char *)(parent + num_parent),
- parents->item->object.sha1);
- diff_tree_combined(sha1, parent, num_parent, dense, 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);
}