[ \--min-age=timestamp ]
[ \--sparse ]
[ \--no-merges ]
+ [ \--remove-empty ]
[ \--all ]
[ [ \--merge-order [ \--show-breaks ] ] | [ \--topo-order ] ]
[ \--parents ]
(still subject to count and age limitation), but apply
merge simplification nevertheless.
+--remove-empty::
+ Stop when a given path disappears from the tree.
+
--all::
Pretend as if all the refs in `$GIT_DIR/refs/` are
listed on the command line as <commit>.
extern int has_pack_index(const unsigned char *sha1);
/* Convert to/from hex/sha1 representation */
+#define MINIMUM_ABBREV 4
+#define DEFAULT_ABBREV 7
+
extern int get_sha1(const char *str, unsigned char *sha1);
extern int get_sha1_hex(const char *hex, unsigned char *sha1);
extern char *sha1_to_hex(const unsigned char *sha1); /* static buffer result! */
return !len;
}
-static int add_parent_info(enum cmit_fmt fmt, char *buf, const char *line, int parents)
+static int add_merge_info(enum cmit_fmt fmt, char *buf, const struct commit *commit, int abbrev)
{
- int offset = 0;
+ struct commit_list *parent = commit->parents;
+ int offset;
- if (fmt == CMIT_FMT_ONELINE)
- return offset;
- switch (parents) {
- case 1:
- break;
- case 2:
- /* Go back to the previous line: 40 characters of previous parent, and one '\n' */
- offset = sprintf(buf, "Merge: %.40s\n", line-41);
- /* Fallthrough */
- default:
- /* Replace the previous '\n' with a space */
- buf[offset-1] = ' ';
- offset += sprintf(buf + offset, "%.40s\n", line+7);
+ if ((fmt == CMIT_FMT_ONELINE) || !parent || !parent->next)
+ return 0;
+
+ offset = sprintf(buf, "Merge:");
+
+ while (parent) {
+ struct commit *p = parent->item;
+ parent = parent->next;
+
+ offset += sprintf(buf + offset,
+ abbrev ? " %s..." : " %s",
+ abbrev
+ ? find_unique_abbrev(p->object.sha1, abbrev)
+ : sha1_to_hex(p->object.sha1));
}
+ buf[offset++] = '\n';
return offset;
}
-unsigned long pretty_print_commit(enum cmit_fmt fmt, const char *msg, unsigned long len, char *buf, unsigned long space)
+unsigned long pretty_print_commit(enum cmit_fmt fmt, const struct commit *commit, unsigned long len, char *buf, unsigned long space, int abbrev)
{
int hdr = 1, body = 0;
unsigned long offset = 0;
- int parents = 0;
int indent = (fmt == CMIT_FMT_ONELINE) ? 0 : 4;
+ int parents_shown = 0;
+ const char *msg = commit->buffer;
for (;;) {
const char *line = msg;
if (!memcmp(line, "parent ", 7)) {
if (linelen != 48)
die("bad parent line in commit");
- offset += add_parent_info(fmt, buf + offset, line, ++parents);
+ continue;
}
+ if (!parents_shown) {
+ offset += add_merge_info(fmt, buf + offset,
+ commit, abbrev);
+ parents_shown = 1;
+ continue;
+ }
/*
* MEDIUM == DEFAULT shows only author with dates.
* FULL shows both authors but not dates.
};
extern enum cmit_fmt get_commit_format(const char *arg);
-extern unsigned long pretty_print_commit(enum cmit_fmt fmt, const char *msg, unsigned long len, char *buf, unsigned long space);
+extern unsigned long pretty_print_commit(enum cmit_fmt fmt, const struct commit *, unsigned long len, char *buf, unsigned long space, int abbrev);
/** Removes the first commit from a list sorted by date, and adds all
* of its parents.
static int all = 0; /* Default to annotated tags only */
static int tags = 0; /* But allow any tags if --tags is specified */
-#define DEFAULT_ABBREV 8 /* maybe too many */
static int abbrev = DEFAULT_ABBREV;
static int names = 0, allocs = 0;
tags = 1;
else if (!strncmp(arg, "--abbrev=", 9)) {
abbrev = strtoul(arg + 9, NULL, 10);
- if (abbrev < 4 || 40 <= abbrev)
+ if (abbrev < MINIMUM_ABBREV || 40 <= abbrev)
abbrev = DEFAULT_ABBREV;
}
else
static const char *generate_header(const unsigned char *commit_sha1,
const unsigned char *parent_sha1,
- const char *msg)
+ const struct commit *commit)
{
static char this_header[16384];
int offset;
unsigned long len;
int abbrev = diff_options.abbrev;
+ const char *msg = commit->buffer;
if (!verbose_header)
return sha1_to_hex(commit_sha1);
: "root");
else
offset += sprintf(this_header + offset, "(from parents)\n");
- offset += pretty_print_commit(commit_format, msg, len,
+ offset += pretty_print_commit(commit_format, commit, len,
this_header + offset,
- sizeof(this_header) - offset);
+ sizeof(this_header) - offset, abbrev);
return this_header;
}
/* Root commit? */
if (show_root_diff && !commit->parents) {
- header = generate_header(sha1, NULL, commit->buffer);
+ header = generate_header(sha1, NULL, commit);
diff_root_tree(commit_sha1, "");
}
if (ignore_merges)
return 0;
else if (combine_merges) {
- header = generate_header(sha1, sha1,
- commit->buffer);
+ header = generate_header(sha1, sha1, commit);
return diff_tree_combined_merge(sha1, header,
show_empty_combined,
dense_combined_merges);
for (parents = commit->parents; parents; parents = parents->next) {
struct commit *parent = parents->item;
- header = generate_header(sha1,
- parent->object.sha1,
- commit->buffer);
+ header = generate_header(sha1, parent->object.sha1, commit);
diff_tree_sha1_top(parent->object.sha1, commit_sha1, "");
if (!header && verbose_header) {
header_prefix = "\ndiff-tree ";
if (memcmp(one->sha1, two->sha1, 20)) {
char one_sha1[41];
- int abbrev = o->full_index ? 40 : DIFF_DEFAULT_INDEX_ABBREV;
+ int abbrev = o->full_index ? 40 : DEFAULT_ABBREV;
memcpy(one_sha1, sha1_to_hex(one->sha1), 41);
len += snprintf(msg + len, sizeof(msg) - len,
else if (!strcmp(arg, "--find-copies-harder"))
options->find_copies_harder = 1;
else if (!strcmp(arg, "--abbrev"))
- options->abbrev = DIFF_DEFAULT_ABBREV;
- else if (!strncmp(arg, "--abbrev=", 9))
+ options->abbrev = DEFAULT_ABBREV;
+ else if (!strncmp(arg, "--abbrev=", 9)) {
options->abbrev = strtoul(arg + 9, NULL, 10);
+ if (options->abbrev < MINIMUM_ABBREV)
+ options->abbrev = MINIMUM_ABBREV;
+ else if (40 < options->abbrev)
+ options->abbrev = 40;
+ }
else
return 0;
return 1;
#define DIFF_PICKAXE_ALL 1
-#define DIFF_DEFAULT_INDEX_ABBREV 7 /* hex digits */
-#define DIFF_DEFAULT_ABBREV 7 /* hex digits */
-
extern void diffcore_std(struct diff_options *);
extern void diffcore_std_no_resolve(struct diff_options *);
" --min-age=epoch\n"
" --sparse\n"
" --no-merges\n"
+" --remove-empty\n"
" --all\n"
" ordering output:\n"
" --merge-order [ --show-breaks ]\n"
static int topo_order = 0;
static int no_merges = 0;
static const char **paths = NULL;
+static int remove_empty_trees = 0;
static void show_commit(struct commit *commit)
{
if (verbose_header) {
static char pretty_header[16384];
- pretty_print_commit(commit_format, commit->buffer, ~0, pretty_header, sizeof(pretty_header));
+ pretty_print_commit(commit_format, commit, ~0, pretty_header, sizeof(pretty_header), 0);
printf("%s%c", pretty_header, hdr_termination);
}
fflush(stdout);
}
}
-static int is_different = 0;
+#define TREE_SAME 0
+#define TREE_NEW 1
+#define TREE_DIFFERENT 2
+static int tree_difference = TREE_SAME;
static void file_add_remove(struct diff_options *options,
int addremove, unsigned mode,
const unsigned char *sha1,
const char *base, const char *path)
{
- is_different = 1;
+ int diff = TREE_DIFFERENT;
+
+ /*
+ * Is it an add of a new file? It means that
+ * the old tree didn't have it at all, so we
+ * will turn "TREE_SAME" -> "TREE_NEW", but
+ * leave any "TREE_DIFFERENT" alone (and if
+ * it already was "TREE_NEW", we'll keep it
+ * "TREE_NEW" of course).
+ */
+ if (addremove == '+') {
+ diff = tree_difference;
+ if (diff != TREE_SAME)
+ return;
+ diff = TREE_NEW;
+ }
+ tree_difference = diff;
}
static void file_change(struct diff_options *options,
const unsigned char *new_sha1,
const char *base, const char *path)
{
- is_different = 1;
+ tree_difference = TREE_DIFFERENT;
}
static struct diff_options diff_opt = {
.change = file_change,
};
-static int same_tree(struct tree *t1, struct tree *t2)
+static int compare_tree(struct tree *t1, struct tree *t2)
{
- is_different = 0;
+ if (!t1)
+ return TREE_NEW;
+ if (!t2)
+ return TREE_DIFFERENT;
+ tree_difference = TREE_SAME;
if (diff_tree_sha1(t1->object.sha1, t2->object.sha1, "", &diff_opt) < 0)
- return 0;
- return !is_different;
+ return TREE_DIFFERENT;
+ return tree_difference;
}
static int same_tree_as_empty(struct tree *t1)
empty.buf = "";
empty.size = 0;
- is_different = 0;
+ tree_difference = 0;
retval = diff_tree(&empty, &real, "", &diff_opt);
free(tree);
- return retval >= 0 && !is_different;
+ return retval >= 0 && !tree_difference;
}
-static struct commit *try_to_simplify_merge(struct commit *commit, struct commit_list *parent)
+static void try_to_simplify_commit(struct commit *commit)
{
+ struct commit_list **pp, *parent;
+
if (!commit->tree)
- return NULL;
+ return;
- while (parent) {
+ if (!commit->parents) {
+ if (!same_tree_as_empty(commit->tree))
+ commit->object.flags |= TREECHANGE;
+ return;
+ }
+
+ pp = &commit->parents;
+ while ((parent = *pp) != NULL) {
struct commit *p = parent->item;
- parent = parent->next;
+
+ if (p->object.flags & UNINTERESTING) {
+ pp = &parent->next;
+ continue;
+ }
+
parse_commit(p);
- if (!p->tree)
+ switch (compare_tree(p->tree, commit->tree)) {
+ case TREE_SAME:
+ parent->next = NULL;
+ commit->parents = parent;
+ return;
+
+ case TREE_NEW:
+ if (remove_empty_trees && same_tree_as_empty(p->tree)) {
+ *pp = parent->next;
+ continue;
+ }
+ /* fallthrough */
+ case TREE_DIFFERENT:
+ pp = &parent->next;
continue;
- if (same_tree(commit->tree, p->tree))
- return p;
+ }
+ die("bad tree compare for commit %s", sha1_to_hex(commit->object.sha1));
}
- return NULL;
+ commit->object.flags |= TREECHANGE;
}
static void add_parents_to_list(struct commit *commit, struct commit_list **list)
}
/*
- * Ok, the commit wasn't uninteresting. If it
- * is a merge, try to find the parent that has
- * no differences in the path set if one exists.
+ * Ok, the commit wasn't uninteresting. Try to
+ * simplify the commit history and find the parent
+ * that has no differences in the path set if one exists.
*/
- if (paths && parent && parent->next) {
- struct commit *preferred;
-
- preferred = try_to_simplify_merge(commit, parent);
- if (preferred) {
- parent->item = preferred;
- parent->next = NULL;
- }
- }
+ if (paths)
+ try_to_simplify_commit(commit);
+ parent = commit->parents;
while (parent) {
struct commit *p = parent->item;
}
}
-static void compress_list(struct commit_list *list)
-{
- while (list) {
- struct commit *commit = list->item;
- struct commit_list *parent = commit->parents;
- list = list->next;
-
- if (!parent) {
- if (!same_tree_as_empty(commit->tree))
- commit->object.flags |= TREECHANGE;
- continue;
- }
-
- /*
- * Exactly one parent? Check if it leaves the tree
- * unchanged
- */
- if (!parent->next) {
- struct tree *t1 = commit->tree;
- struct tree *t2 = parent->item->tree;
- if (!t1 || !t2 || same_tree(t1, t2))
- continue;
- }
- commit->object.flags |= TREECHANGE;
- }
-}
-
static struct commit_list *limit_list(struct commit_list *list)
{
struct commit_list *newlist = NULL;
}
if (tree_objects)
mark_edges_uninteresting(newlist);
- if (paths && dense)
- compress_list(newlist);
if (bisect_list)
newlist = find_bisection(newlist);
return newlist;
dense = 0;
continue;
}
+ if (!strcmp(arg, "--remove-empty")) {
+ remove_empty_trees = 1;
+ continue;
+ }
if (!strcmp(arg, "--")) {
i++;
break;
#define REVERSED 1
static int show_type = NORMAL;
static int symbolic = 0;
+static int abbrev = 0;
static int output_sq = 0;
static int revs_count = 0;
putchar('^');
if (symbolic && name)
show(name);
+ else if (abbrev)
+ show(find_unique_abbrev(sha1, abbrev));
else
show(sha1_to_hex(sha1));
}
verify = 1;
continue;
}
+ if (!strcmp(arg, "--short") ||
+ !strncmp(arg, "--short=", 9)) {
+ filter &= ~(DO_FLAGS|DO_NOREV);
+ verify = 1;
+ abbrev = DEFAULT_ABBREV;
+ if (arg[8] == '=')
+ abbrev = strtoul(arg + 9, NULL, 10);
+ if (abbrev < MINIMUM_ABBREV)
+ abbrev = MINIMUM_ABBREV;
+ else if (40 <= abbrev)
+ abbrev = 40;
+ continue;
+ }
if (!strcmp(arg, "--sq")) {
output_sq = 1;
continue;
}
if (verify)
die("Needed a single revision");
- if (lstat(arg, &st) < 0)
+ if ((filter & DO_REVS) &&
+ (filter & DO_NONFLAGS) && /* !def && */
+ lstat(arg, &st) < 0)
die("'%s': %s", arg, strerror(errno));
as_is = 1;
show_file(arg);
char canonical[40];
unsigned char res[20];
- if (len < 4)
+ if (len < MINIMUM_ABBREV)
return -1;
memset(res, 0, 20);
memset(canonical, 'x', 40);
char pretty[256], *cp;
struct commit_name *name = commit->object.util;
if (commit->object.parsed)
- pretty_print_commit(CMIT_FMT_ONELINE, commit->buffer, ~0,
- pretty, sizeof(pretty));
+ pretty_print_commit(CMIT_FMT_ONELINE, commit, ~0,
+ pretty, sizeof(pretty), 0);
else
strcpy(pretty, "(unavailable)");
if (!strncmp(pretty, "[PATCH] ", 8))
projects / git.git / commitdiff