static int window = 10;
static uint32_t pack_size_limit, pack_size_limit_cfg;
static int depth = 50;
-static int delta_search_threads = 1;
+static int delta_search_threads;
static int pack_to_stdout;
static int num_preferred_base;
static struct progress *progress_state;
int st;
memset(&stream, 0, sizeof(stream));
- inflateInit(&stream);
+ git_inflate_init(&stream);
do {
in = use_pack(p, w_curs, offset, &stream.avail_in);
stream.next_in = in;
stream.next_out = fakebuf;
stream.avail_out = sizeof(fakebuf);
- st = inflate(&stream, Z_FINISH);
+ st = git_inflate(&stream, Z_FINISH);
offset += stream.next_in - in;
} while (st == Z_OK || st == Z_BUF_ERROR);
- inflateEnd(&stream);
+ git_inflate_end(&stream);
return (st == Z_STREAM_END &&
stream.total_out == expect &&
stream.total_in == len) ? 0 : -1;
*/
if (!to_reuse) {
+ no_reuse:
if (!usable_delta) {
buf = read_sha1_file(entry->idx.sha1, &type, &size);
if (!buf)
struct revindex_entry *revidx;
off_t offset;
- if (entry->delta) {
+ if (entry->delta)
type = (allow_ofs_delta && entry->delta->idx.offset) ?
OBJ_OFS_DELTA : OBJ_REF_DELTA;
- reused_delta++;
- }
hdrlen = encode_header(type, entry->size, header);
+
offset = entry->in_pack_offset;
revidx = find_pack_revindex(p, offset);
datalen = revidx[1].offset - offset;
if (!pack_to_stdout && p->index_version > 1 &&
- check_pack_crc(p, &w_curs, offset, datalen, revidx->nr))
- die("bad packed object CRC for %s", sha1_to_hex(entry->idx.sha1));
+ check_pack_crc(p, &w_curs, offset, datalen, revidx->nr)) {
+ error("bad packed object CRC for %s", sha1_to_hex(entry->idx.sha1));
+ unuse_pack(&w_curs);
+ goto no_reuse;
+ }
+
offset += entry->in_pack_header_size;
datalen -= entry->in_pack_header_size;
+ if (!pack_to_stdout && p->index_version == 1 &&
+ check_pack_inflate(p, &w_curs, offset, datalen, entry->size)) {
+ error("corrupt packed object for %s", sha1_to_hex(entry->idx.sha1));
+ unuse_pack(&w_curs);
+ goto no_reuse;
+ }
+
if (type == OBJ_OFS_DELTA) {
off_t ofs = entry->idx.offset - entry->delta->idx.offset;
unsigned pos = sizeof(dheader) - 1;
dheader[pos] = ofs & 127;
while (ofs >>= 7)
dheader[--pos] = 128 | (--ofs & 127);
- if (limit && hdrlen + sizeof(dheader) - pos + datalen + 20 >= limit)
+ if (limit && hdrlen + sizeof(dheader) - pos + datalen + 20 >= limit) {
+ unuse_pack(&w_curs);
return 0;
+ }
sha1write(f, header, hdrlen);
sha1write(f, dheader + pos, sizeof(dheader) - pos);
hdrlen += sizeof(dheader) - pos;
+ reused_delta++;
} else if (type == OBJ_REF_DELTA) {
- if (limit && hdrlen + 20 + datalen + 20 >= limit)
+ if (limit && hdrlen + 20 + datalen + 20 >= limit) {
+ unuse_pack(&w_curs);
return 0;
+ }
sha1write(f, header, hdrlen);
sha1write(f, entry->delta->idx.sha1, 20);
hdrlen += 20;
+ reused_delta++;
} else {
- if (limit && hdrlen + datalen + 20 >= limit)
+ if (limit && hdrlen + datalen + 20 >= limit) {
+ unuse_pack(&w_curs);
return 0;
+ }
sha1write(f, header, hdrlen);
}
-
- if (!pack_to_stdout && p->index_version == 1 &&
- check_pack_inflate(p, &w_curs, offset, datalen, entry->size))
- die("corrupt packed object for %s", sha1_to_hex(entry->idx.sha1));
copy_pack_data(f, p, &w_curs, offset, datalen);
unuse_pack(&w_curs);
reused++;
} else {
char tmpname[PATH_MAX];
int fd;
- snprintf(tmpname, sizeof(tmpname),
- "%s/pack/tmp_pack_XXXXXX", get_object_directory());
- fd = xmkstemp(tmpname);
+ fd = odb_mkstemp(tmpname, sizeof(tmpname),
+ "pack/tmp_pack_XXXXXX");
pack_tmp_name = xstrdup(tmpname);
f = sha1fd(fd, pack_tmp_name);
}
* We want in_pack_type even if we do not reuse delta
* since non-delta representations could still be reused.
*/
- used = unpack_object_header_gently(buf, avail,
+ used = unpack_object_header_buffer(buf, avail,
&entry->in_pack_type,
&entry->size);
+ if (used == 0)
+ goto give_up;
/*
* Determine if this is a delta and if so whether we can
/* Not a delta hence we've already got all we need. */
entry->type = entry->in_pack_type;
entry->in_pack_header_size = used;
+ if (entry->type < OBJ_COMMIT || entry->type > OBJ_BLOB)
+ goto give_up;
unuse_pack(&w_curs);
return;
case OBJ_REF_DELTA:
ofs = c & 127;
while (c & 128) {
ofs += 1;
- if (!ofs || MSB(ofs, 7))
- die("delta base offset overflow in pack for %s",
- sha1_to_hex(entry->idx.sha1));
+ if (!ofs || MSB(ofs, 7)) {
+ error("delta base offset overflow in pack for %s",
+ sha1_to_hex(entry->idx.sha1));
+ goto give_up;
+ }
c = buf[used_0++];
ofs = (ofs << 7) + (c & 127);
}
- if (ofs >= entry->in_pack_offset)
- die("delta base offset out of bound for %s",
- sha1_to_hex(entry->idx.sha1));
ofs = entry->in_pack_offset - ofs;
+ if (ofs <= 0 || ofs >= entry->in_pack_offset) {
+ error("delta base offset out of bound for %s",
+ sha1_to_hex(entry->idx.sha1));
+ goto give_up;
+ }
if (reuse_delta && !entry->preferred_base) {
struct revindex_entry *revidx;
revidx = find_pack_revindex(p, ofs);
+ if (!revidx)
+ goto give_up;
base_ref = nth_packed_object_sha1(p, revidx->nr);
}
entry->in_pack_header_size = used + used_0;
*/
entry->type = entry->in_pack_type;
entry->delta = base_entry;
+ entry->delta_size = entry->size;
entry->delta_sibling = base_entry->delta_child;
base_entry->delta_child = entry;
unuse_pack(&w_curs);
*/
entry->size = get_size_from_delta(p, &w_curs,
entry->in_pack_offset + entry->in_pack_header_size);
+ if (entry->size == 0)
+ goto give_up;
unuse_pack(&w_curs);
return;
}
* with sha1_object_info() to find about the object type
* at this point...
*/
+ give_up:
unuse_pack(&w_curs);
}
int window, int depth, unsigned *processed)
{
uint32_t i, idx = 0, count = 0;
- unsigned int array_size = window * sizeof(struct unpacked);
struct unpacked *array;
unsigned long mem_usage = 0;
- array = xmalloc(array_size);
- memset(array, 0, array_size);
+ array = xcalloc(window, sizeof(struct unpacked));
for (;;) {
struct object_entry *entry;
find_deltas(list, &list_size, window, depth, processed);
return;
}
+ if (progress > pack_to_stdout)
+ fprintf(stderr, "Delta compression using up to %d threads.\n",
+ delta_search_threads);
/* Partition the work amongst work threads. */
for (i = 0; i < delta_search_threads; i++) {
unsigned sub_size = list_size / (delta_search_threads - i);
+ /* don't use too small segments or no deltas will be found */
+ if (sub_size < 2*window && i+1 < delta_search_threads)
+ sub_size = 0;
+
p[i].window = window;
p[i].depth = depth;
p[i].processed = processed;
get_object_details();
+ /*
+ * If we're locally repacking then we need to be doubly careful
+ * from now on in order to make sure no stealth corruption gets
+ * propagated to the new pack. Clients receiving streamed packs
+ * should validate everything they get anyway so no need to incur
+ * the additional cost here in that case.
+ */
+ if (!pack_to_stdout)
+ do_check_packed_object_crc = 1;
+
if (!nr_objects || !window || !depth)
return;
if (entry->type < 0)
die("unable to get type of object %s",
sha1_to_hex(entry->idx.sha1));
+ } else {
+ if (entry->type < 0) {
+ /*
+ * This object is not found, but we
+ * don't have to include it anyway.
+ */
+ continue;
+ }
}
delta_list[n++] = entry;
#define OBJECT_ADDED (1u<<20)
-static void show_commit(struct commit *commit)
+static void show_commit(struct commit *commit, void *data)
{
add_object_entry(commit->object.sha1, OBJ_COMMIT, NULL, 0);
commit->object.flags |= OBJECT_ADDED;
}
- static void show_object(struct object_array_entry *p, void *data)
+ static void show_object(struct object *obj, const struct name_path *path, const char *last)
{
- add_preferred_base_object(p->name);
- add_object_entry(p->item->sha1, p->item->type, p->name, 0);
- p->item->flags |= OBJECT_ADDED;
- free((char *)p->name);
- p->name = NULL;
+ char *name = path_name(path, last);
+
+ add_preferred_base_object(name);
+ add_object_entry(obj->sha1, obj->type, name, 0);
+ obj->flags |= OBJECT_ADDED;
+
+ /*
+ * We will have generated the hash from the name,
+ * but not saved a pointer to it - we can free it
+ */
+ free((char *)name);
}
static void show_edge(struct commit *commit)
const unsigned char *sha1;
struct object *o;
- for (i = 0; i < revs->num_ignore_packed; i++) {
- if (matches_pack_name(p, revs->ignore_packed[i]))
- break;
- }
- if (revs->num_ignore_packed <= i)
+ if (!p->pack_local || p->pack_keep)
continue;
if (open_pack_index(p))
die("cannot open pack index");
free(in_pack.array);
}
+static int has_sha1_pack_kept_or_nonlocal(const unsigned char *sha1)
+{
+ static struct packed_git *last_found = (void *)1;
+ struct packed_git *p;
+
+ p = (last_found != (void *)1) ? last_found : packed_git;
+
+ while (p) {
+ if ((!p->pack_local || p->pack_keep) &&
+ find_pack_entry_one(sha1, p)) {
+ last_found = p;
+ return 1;
+ }
+ if (p == last_found)
+ p = packed_git;
+ else
+ p = p->next;
+ if (p == last_found)
+ p = p->next;
+ }
+ return 0;
+}
+
static void loosen_unused_packed_objects(struct rev_info *revs)
{
struct packed_git *p;
const unsigned char *sha1;
for (p = packed_git; p; p = p->next) {
- for (i = 0; i < revs->num_ignore_packed; i++) {
- if (matches_pack_name(p, revs->ignore_packed[i]))
- break;
- }
- if (revs->num_ignore_packed <= i)
+ if (!p->pack_local || p->pack_keep)
continue;
if (open_pack_index(p))
for (i = 0; i < p->num_objects; i++) {
sha1 = nth_packed_object_sha1(p, i);
- if (!locate_object_entry(sha1))
+ if (!locate_object_entry(sha1) &&
+ !has_sha1_pack_kept_or_nonlocal(sha1))
if (force_object_loose(sha1, p->mtime))
die("unable to force loose object");
}
if (prepare_revision_walk(&revs))
die("revision walk setup failed");
mark_edges_uninteresting(revs.commits, &revs, show_edge);
- traverse_commit_list(&revs, show_commit, show_object);
+ traverse_commit_list(&revs, show_commit, show_object, NULL);
if (keep_unreachable)
add_objects_in_unpacked_packs(&revs);
continue;
}
if (!strcmp("--unpacked", arg) ||
- !prefixcmp(arg, "--unpacked=") ||
!strcmp("--reflog", arg) ||
!strcmp("--all", arg)) {
use_internal_rev_list = 1;
#include "cache.h"
-#include "refs.h"
-#include "tag.h"
#include "commit.h"
-#include "tree.h"
-#include "blob.h"
-#include "tree-walk.h"
#include "diff.h"
#include "revision.h"
#include "list-objects.h"
#include "builtin.h"
#include "log-tree.h"
#include "graph.h"
-
-/* bits #0-15 in revision.h */
-
-#define COUNTED (1u<<16)
+#include "bisect.h"
static const char rev_list_usage[] =
"git rev-list [OPTION] <commit-id>... [ -- paths... ]\n"
" --bisect-all"
;
-static struct rev_info revs;
-
-static int bisect_list;
-static int show_timestamp;
-static int hdr_termination;
-static const char *header_prefix;
-
-static void finish_commit(struct commit *commit);
-static void show_commit(struct commit *commit)
+static void finish_commit(struct commit *commit, void *data);
+static void show_commit(struct commit *commit, void *data)
{
- graph_show_commit(revs.graph);
+ struct rev_list_info *info = data;
+ struct rev_info *revs = info->revs;
+
+ graph_show_commit(revs->graph);
- if (show_timestamp)
+ if (info->show_timestamp)
printf("%lu ", commit->date);
- if (header_prefix)
- fputs(header_prefix, stdout);
+ if (info->header_prefix)
+ fputs(info->header_prefix, stdout);
- if (!revs.graph) {
+ if (!revs->graph) {
if (commit->object.flags & BOUNDARY)
putchar('-');
else if (commit->object.flags & UNINTERESTING)
putchar('^');
- else if (revs.left_right) {
+ else if (revs->left_right) {
if (commit->object.flags & SYMMETRIC_LEFT)
putchar('<');
else
putchar('>');
}
}
- if (revs.abbrev_commit && revs.abbrev)
- fputs(find_unique_abbrev(commit->object.sha1, revs.abbrev),
+ if (revs->abbrev_commit && revs->abbrev)
+ fputs(find_unique_abbrev(commit->object.sha1, revs->abbrev),
stdout);
else
fputs(sha1_to_hex(commit->object.sha1), stdout);
- if (revs.print_parents) {
+ if (revs->print_parents) {
struct commit_list *parents = commit->parents;
while (parents) {
printf(" %s", sha1_to_hex(parents->item->object.sha1));
parents = parents->next;
}
}
- if (revs.children.name) {
+ if (revs->children.name) {
struct commit_list *children;
- children = lookup_decoration(&revs.children, &commit->object);
+ children = lookup_decoration(&revs->children, &commit->object);
while (children) {
printf(" %s", sha1_to_hex(children->item->object.sha1));
children = children->next;
}
}
- show_decorations(commit);
- if (revs.commit_format == CMIT_FMT_ONELINE)
+ show_decorations(revs, commit);
+ if (revs->commit_format == CMIT_FMT_ONELINE)
putchar(' ');
else
putchar('\n');
- if (revs.verbose_header && commit->buffer) {
- struct strbuf buf;
- strbuf_init(&buf, 0);
- pretty_print_commit(revs.commit_format, commit,
- &buf, revs.abbrev, NULL, NULL,
- revs.date_mode, 0);
- if (revs.graph) {
+ if (revs->verbose_header && commit->buffer) {
+ struct strbuf buf = STRBUF_INIT;
+ pretty_print_commit(revs->commit_format, commit,
+ &buf, revs->abbrev, NULL, NULL,
+ revs->date_mode, 0);
+ if (revs->graph) {
if (buf.len) {
- if (revs.commit_format != CMIT_FMT_ONELINE)
- graph_show_oneline(revs.graph);
+ if (revs->commit_format != CMIT_FMT_ONELINE)
+ graph_show_oneline(revs->graph);
- graph_show_commit_msg(revs.graph, &buf);
+ graph_show_commit_msg(revs->graph, &buf);
/*
* Add a newline after the commit message.
* format doesn't explicitly end in a newline.)
*/
if (buf.len && buf.buf[buf.len - 1] == '\n')
- graph_show_padding(revs.graph);
+ graph_show_padding(revs->graph);
putchar('\n');
} else {
/*
* the rest of the graph output for this
* commit.
*/
- if (graph_show_remainder(revs.graph))
+ if (graph_show_remainder(revs->graph))
putchar('\n');
}
} else {
if (buf.len)
- printf("%s%c", buf.buf, hdr_termination);
+ printf("%s%c", buf.buf, info->hdr_termination);
}
strbuf_release(&buf);
} else {
- if (graph_show_remainder(revs.graph))
+ if (graph_show_remainder(revs->graph))
putchar('\n');
}
maybe_flush_or_die(stdout, "stdout");
- finish_commit(commit);
+ finish_commit(commit, data);
}
-static void finish_commit(struct commit *commit)
+static void finish_commit(struct commit *commit, void *data)
{
if (commit->parents) {
free_commit_list(commit->parents);
commit->buffer = NULL;
}
- static void finish_object(struct object_array_entry *p, void *data)
+ static void finish_object(struct object *obj, const struct name_path *path, const char *name)
{
- if (p->item->type == OBJ_BLOB && !has_sha1_file(p->item->sha1))
- die("missing blob object '%s'", sha1_to_hex(p->item->sha1));
+ if (obj->type == OBJ_BLOB && !has_sha1_file(obj->sha1))
+ die("missing blob object '%s'", sha1_to_hex(obj->sha1));
}
- static void show_object(struct object_array_entry *p, void *data)
+ static void show_object(struct object *obj, const struct name_path *path, const char *component)
{
+ char *name = path_name(path, component);
/* An object with name "foo\n0000000..." can be used to
* confuse downstream "git pack-objects" very badly.
*/
- const char *ep = strchr(p->name, '\n');
+ const char *ep = strchr(name, '\n');
- finish_object(p, data);
+ finish_object(obj, path, name);
if (ep) {
- printf("%s %.*s\n", sha1_to_hex(p->item->sha1),
- (int) (ep - p->name),
- p->name);
+ printf("%s %.*s\n", sha1_to_hex(obj->sha1),
+ (int) (ep - name),
+ name);
}
else
- printf("%s %s\n", sha1_to_hex(p->item->sha1), p->name);
+ printf("%s %s\n", sha1_to_hex(obj->sha1), name);
+ free(name);
}
static void show_edge(struct commit *commit)
printf("-%s\n", sha1_to_hex(commit->object.sha1));
}
-/*
- * This is a truly stupid algorithm, but it's only
- * used for bisection, and we just don't care enough.
- *
- * We care just barely enough to avoid recursing for
- * non-merge entries.
- */
-static int count_distance(struct commit_list *entry)
-{
- int nr = 0;
-
- while (entry) {
- struct commit *commit = entry->item;
- struct commit_list *p;
-
- if (commit->object.flags & (UNINTERESTING | COUNTED))
- break;
- if (!(commit->object.flags & TREESAME))
- nr++;
- commit->object.flags |= COUNTED;
- p = commit->parents;
- entry = p;
- if (p) {
- p = p->next;
- while (p) {
- nr += count_distance(p);
- p = p->next;
- }
- }
- }
-
- return nr;
-}
-
-static void clear_distance(struct commit_list *list)
+static inline int log2i(int n)
{
- while (list) {
- struct commit *commit = list->item;
- commit->object.flags &= ~COUNTED;
- list = list->next;
- }
-}
+ int log2 = 0;
-#define DEBUG_BISECT 0
+ for (; n > 1; n >>= 1)
+ log2++;
-static inline int weight(struct commit_list *elem)
-{
- return *((int*)(elem->item->util));
+ return log2;
}
-static inline void weight_set(struct commit_list *elem, int weight)
+static inline int exp2i(int n)
{
- *((int*)(elem->item->util)) = weight;
+ return 1 << n;
}
-static int count_interesting_parents(struct commit *commit)
+/*
+ * Estimate the number of bisect steps left (after the current step)
+ *
+ * For any x between 0 included and 2^n excluded, the probability for
+ * n - 1 steps left looks like:
+ *
+ * P(2^n + x) == (2^n - x) / (2^n + x)
+ *
+ * and P(2^n + x) < 0.5 means 2^n < 3x
+ */
+static int estimate_bisect_steps(int all)
{
- struct commit_list *p;
- int count;
+ int n, x, e;
- for (count = 0, p = commit->parents; p; p = p->next) {
- if (p->item->object.flags & UNINTERESTING)
- continue;
- count++;
- }
- return count;
-}
-
-static inline int halfway(struct commit_list *p, int nr)
-{
- /*
- * Don't short-cut something we are not going to return!
- */
- if (p->item->object.flags & TREESAME)
+ if (all < 3)
return 0;
- if (DEBUG_BISECT)
- return 0;
- /*
- * 2 and 3 are halfway of 5.
- * 3 is halfway of 6 but 2 and 4 are not.
- */
- switch (2 * weight(p) - nr) {
- case -1: case 0: case 1:
- return 1;
- default:
- return 0;
- }
-}
-
-#if !DEBUG_BISECT
-#define show_list(a,b,c,d) do { ; } while (0)
-#else
-static void show_list(const char *debug, int counted, int nr,
- struct commit_list *list)
-{
- struct commit_list *p;
-
- fprintf(stderr, "%s (%d/%d)\n", debug, counted, nr);
-
- for (p = list; p; p = p->next) {
- struct commit_list *pp;
- struct commit *commit = p->item;
- unsigned flags = commit->object.flags;
- enum object_type type;
- unsigned long size;
- char *buf = read_sha1_file(commit->object.sha1, &type, &size);
- char *ep, *sp;
-
- fprintf(stderr, "%c%c%c ",
- (flags & TREESAME) ? ' ' : 'T',
- (flags & UNINTERESTING) ? 'U' : ' ',
- (flags & COUNTED) ? 'C' : ' ');
- if (commit->util)
- fprintf(stderr, "%3d", weight(p));
- else
- fprintf(stderr, "---");
- fprintf(stderr, " %.*s", 8, sha1_to_hex(commit->object.sha1));
- for (pp = commit->parents; pp; pp = pp->next)
- fprintf(stderr, " %.*s", 8,
- sha1_to_hex(pp->item->object.sha1));
-
- sp = strstr(buf, "\n\n");
- if (sp) {
- sp += 2;
- for (ep = sp; *ep && *ep != '\n'; ep++)
- ;
- fprintf(stderr, " %.*s", (int)(ep - sp), sp);
- }
- fprintf(stderr, "\n");
- }
-}
-#endif /* DEBUG_BISECT */
-
-static struct commit_list *best_bisection(struct commit_list *list, int nr)
-{
- struct commit_list *p, *best;
- int best_distance = -1;
-
- best = list;
- for (p = list; p; p = p->next) {
- int distance;
- unsigned flags = p->item->object.flags;
-
- if (flags & TREESAME)
- continue;
- distance = weight(p);
- if (nr - distance < distance)
- distance = nr - distance;
- if (distance > best_distance) {
- best = p;
- best_distance = distance;
- }
- }
-
- return best;
-}
-
-struct commit_dist {
- struct commit *commit;
- int distance;
-};
-static int compare_commit_dist(const void *a_, const void *b_)
-{
- struct commit_dist *a, *b;
+ n = log2i(all);
+ e = exp2i(n);
+ x = all - e;
- a = (struct commit_dist *)a_;
- b = (struct commit_dist *)b_;
- if (a->distance != b->distance)
- return b->distance - a->distance; /* desc sort */
- return hashcmp(a->commit->object.sha1, b->commit->object.sha1);
+ return (e < 3 * x) ? n : n - 1;
}
-static struct commit_list *best_bisection_sorted(struct commit_list *list, int nr)
+static void show_tried_revs(struct commit_list *tried, int stringed)
{
- struct commit_list *p;
- struct commit_dist *array = xcalloc(nr, sizeof(*array));
- int cnt, i;
-
- for (p = list, cnt = 0; p; p = p->next) {
- int distance;
- unsigned flags = p->item->object.flags;
-
- if (flags & TREESAME)
- continue;
- distance = weight(p);
- if (nr - distance < distance)
- distance = nr - distance;
- array[cnt].commit = p->item;
- array[cnt].distance = distance;
- cnt++;
- }
- qsort(array, cnt, sizeof(*array), compare_commit_dist);
- for (p = list, i = 0; i < cnt; i++) {
- struct name_decoration *r = xmalloc(sizeof(*r) + 100);
- struct object *obj = &(array[i].commit->object);
-
- sprintf(r->name, "dist=%d", array[i].distance);
- r->next = add_decoration(&name_decoration, obj, r);
- p->item = array[i].commit;
- p = p->next;
+ printf("bisect_tried='");
+ for (;tried; tried = tried->next) {
+ char *format = tried->next ? "%s|" : "%s";
+ printf(format, sha1_to_hex(tried->item->object.sha1));
}
- if (p)
- p->next = NULL;
- free(array);
- return list;
+ printf(stringed ? "' &&\n" : "'\n");
}
-/*
- * zero or positive weight is the number of interesting commits it can
- * reach, including itself. Especially, weight = 0 means it does not
- * reach any tree-changing commits (e.g. just above uninteresting one
- * but traversal is with pathspec).
- *
- * weight = -1 means it has one parent and its distance is yet to
- * be computed.
- *
- * weight = -2 means it has more than one parent and its distance is
- * unknown. After running count_distance() first, they will get zero
- * or positive distance.
- */
-static struct commit_list *do_find_bisection(struct commit_list *list,
- int nr, int *weights,
- int find_all)
+int show_bisect_vars(struct rev_list_info *info, int reaches, int all)
{
- int n, counted;
- struct commit_list *p;
-
- counted = 0;
-
- for (n = 0, p = list; p; p = p->next) {
- struct commit *commit = p->item;
- unsigned flags = commit->object.flags;
-
- p->item->util = &weights[n++];
- switch (count_interesting_parents(commit)) {
- case 0:
- if (!(flags & TREESAME)) {
- weight_set(p, 1);
- counted++;
- show_list("bisection 2 count one",
- counted, nr, list);
- }
- /*
- * otherwise, it is known not to reach any
- * tree-changing commit and gets weight 0.
- */
- break;
- case 1:
- weight_set(p, -1);
- break;
- default:
- weight_set(p, -2);
- break;
- }
- }
+ int cnt, flags = info->bisect_show_flags;
+ char hex[41] = "", *format;
+ struct commit_list *tried;
+ struct rev_info *revs = info->revs;
- show_list("bisection 2 initialize", counted, nr, list);
+ if (!revs->commits && !(flags & BISECT_SHOW_TRIED))
+ return 1;
+
+ revs->commits = filter_skipped(revs->commits, &tried, flags & BISECT_SHOW_ALL);
/*
- * If you have only one parent in the resulting set
- * then you can reach one commit more than that parent
- * can reach. So we do not have to run the expensive
- * count_distance() for single strand of pearls.
- *
- * However, if you have more than one parents, you cannot
- * just add their distance and one for yourself, since
- * they usually reach the same ancestor and you would
- * end up counting them twice that way.
- *
- * So we will first count distance of merges the usual
- * way, and then fill the blanks using cheaper algorithm.
+ * revs->commits can reach "reaches" commits among
+ * "all" commits. If it is good, then there are
+ * (all-reaches) commits left to be bisected.
+ * On the other hand, if it is bad, then the set
+ * to bisect is "reaches".
+ * A bisect set of size N has (N-1) commits further
+ * to test, as we already know one bad one.
*/
- for (p = list; p; p = p->next) {
- if (p->item->object.flags & UNINTERESTING)
- continue;
- if (weight(p) != -2)
- continue;
- weight_set(p, count_distance(p));
- clear_distance(list);
-
- /* Does it happen to be at exactly half-way? */
- if (!find_all && halfway(p, nr))
- return p;
- counted++;
- }
+ cnt = all - reaches;
+ if (cnt < reaches)
+ cnt = reaches;
- show_list("bisection 2 count_distance", counted, nr, list);
+ if (revs->commits)
+ strcpy(hex, sha1_to_hex(revs->commits->item->object.sha1));
- while (counted < nr) {
- for (p = list; p; p = p->next) {
- struct commit_list *q;
- unsigned flags = p->item->object.flags;
-
- if (0 <= weight(p))
- continue;
- for (q = p->item->parents; q; q = q->next) {
- if (q->item->object.flags & UNINTERESTING)
- continue;
- if (0 <= weight(q))
- break;
- }
- if (!q)
- continue;
-
- /*
- * weight for p is unknown but q is known.
- * add one for p itself if p is to be counted,
- * otherwise inherit it from q directly.
- */
- if (!(flags & TREESAME)) {
- weight_set(p, weight(q)+1);
- counted++;
- show_list("bisection 2 count one",
- counted, nr, list);
- }
- else
- weight_set(p, weight(q));
-
- /* Does it happen to be at exactly half-way? */
- if (!find_all && halfway(p, nr))
- return p;
- }
+ if (flags & BISECT_SHOW_ALL) {
+ traverse_commit_list(revs, show_commit, show_object, info);
+ printf("------\n");
}
- show_list("bisection 2 counted all", counted, nr, list);
-
- if (!find_all)
- return best_bisection(list, nr);
- else
- return best_bisection_sorted(list, nr);
-}
-
-static struct commit_list *find_bisection(struct commit_list *list,
- int *reaches, int *all,
- int find_all)
-{
- int nr, on_list;
- struct commit_list *p, *best, *next, *last;
- int *weights;
-
- show_list("bisection 2 entry", 0, 0, list);
+ if (flags & BISECT_SHOW_TRIED)
+ show_tried_revs(tried, flags & BISECT_SHOW_STRINGED);
+ format = (flags & BISECT_SHOW_STRINGED) ?
+ "bisect_rev=%s &&\n"
+ "bisect_nr=%d &&\n"
+ "bisect_good=%d &&\n"
+ "bisect_bad=%d &&\n"
+ "bisect_all=%d &&\n"
+ "bisect_steps=%d\n"
+ :
+ "bisect_rev=%s\n"
+ "bisect_nr=%d\n"
+ "bisect_good=%d\n"
+ "bisect_bad=%d\n"
+ "bisect_all=%d\n"
+ "bisect_steps=%d\n";
+ printf(format,
+ hex,
+ cnt - 1,
+ all - reaches - 1,
+ reaches - 1,
+ all,
+ estimate_bisect_steps(all));
- /*
- * Count the number of total and tree-changing items on the
- * list, while reversing the list.
- */
- for (nr = on_list = 0, last = NULL, p = list;
- p;
- p = next) {
- unsigned flags = p->item->object.flags;
-
- next = p->next;
- if (flags & UNINTERESTING)
- continue;
- p->next = last;
- last = p;
- if (!(flags & TREESAME))
- nr++;
- on_list++;
- }
- list = last;
- show_list("bisection 2 sorted", 0, nr, list);
-
- *all = nr;
- weights = xcalloc(on_list, sizeof(*weights));
-
- /* Do the real work of finding bisection commit. */
- best = do_find_bisection(list, nr, weights, find_all);
- if (best) {
- if (!find_all)
- best->next = NULL;
- *reaches = weight(best);
- }
- free(weights);
- return best;
+ return 0;
}
int cmd_rev_list(int argc, const char **argv, const char *prefix)
{
- struct commit_list *list;
+ struct rev_info revs;
+ struct rev_list_info info;
int i;
int read_from_stdin = 0;
+ int bisect_list = 0;
int bisect_show_vars = 0;
int bisect_find_all = 0;
int quiet = 0;
revs.commit_format = CMIT_FMT_UNSPECIFIED;
argc = setup_revisions(argc, argv, &revs, NULL);
+ memset(&info, 0, sizeof(info));
+ info.revs = &revs;
+
quiet = DIFF_OPT_TST(&revs.diffopt, QUIET);
for (i = 1 ; i < argc; i++) {
const char *arg = argv[i];
continue;
}
if (!strcmp(arg, "--timestamp")) {
- show_timestamp = 1;
+ info.show_timestamp = 1;
continue;
}
if (!strcmp(arg, "--bisect")) {
if (!strcmp(arg, "--bisect-all")) {
bisect_list = 1;
bisect_find_all = 1;
+ info.bisect_show_flags = BISECT_SHOW_ALL;
+ revs.show_decorations = 1;
continue;
}
if (!strcmp(arg, "--bisect-vars")) {
}
if (revs.commit_format != CMIT_FMT_UNSPECIFIED) {
/* The command line has a --pretty */
- hdr_termination = '\n';
+ info.hdr_termination = '\n';
if (revs.commit_format == CMIT_FMT_ONELINE)
- header_prefix = "";
+ info.header_prefix = "";
else
- header_prefix = "commit ";
+ info.header_prefix = "commit ";
}
else if (revs.verbose_header)
/* Only --header was specified */
revs.commit_format = CMIT_FMT_RAW;
- list = revs.commits;
-
- if ((!list &&
+ if ((!revs.commits &&
(!(revs.tag_objects||revs.tree_objects||revs.blob_objects) &&
!revs.pending.nr)) ||
revs.diff)
revs.commits = find_bisection(revs.commits, &reaches, &all,
bisect_find_all);
- if (bisect_show_vars) {
- int cnt;
- char hex[41];
- if (!revs.commits)
- return 1;
- /*
- * revs.commits can reach "reaches" commits among
- * "all" commits. If it is good, then there are
- * (all-reaches) commits left to be bisected.
- * On the other hand, if it is bad, then the set
- * to bisect is "reaches".
- * A bisect set of size N has (N-1) commits further
- * to test, as we already know one bad one.
- */
- cnt = all - reaches;
- if (cnt < reaches)
- cnt = reaches;
- strcpy(hex, sha1_to_hex(revs.commits->item->object.sha1));
-
- if (bisect_find_all) {
- traverse_commit_list(&revs, show_commit, show_object);
- printf("------\n");
- }
- printf("bisect_rev=%s\n"
- "bisect_nr=%d\n"
- "bisect_good=%d\n"
- "bisect_bad=%d\n"
- "bisect_all=%d\n",
- hex,
- cnt - 1,
- all - reaches - 1,
- reaches - 1,
- all);
- return 0;
- }
+ if (bisect_show_vars)
+ return show_bisect_vars(&info, reaches, all);
}
traverse_commit_list(&revs,
- quiet ? finish_commit : show_commit,
- quiet ? finish_object : show_object);
+ quiet ? finish_commit : show_commit,
+ quiet ? finish_object : show_object,
+ &info);
return 0;
}
static void process_blob(struct rev_info *revs,
struct blob *blob,
- struct object_array *p,
+ show_object_fn show,
struct name_path *path,
const char *name)
{
if (obj->flags & (UNINTERESTING | SEEN))
return;
obj->flags |= SEEN;
- add_object(obj, p, path, name);
+ show(obj, path, name);
}
/*
*/
static void process_gitlink(struct rev_info *revs,
const unsigned char *sha1,
- struct object_array *p,
+ show_object_fn show,
struct name_path *path,
const char *name)
{
static void process_tree(struct rev_info *revs,
struct tree *tree,
- struct object_array *p,
+ show_object_fn show,
struct name_path *path,
const char *name)
{
if (parse_tree(tree) < 0)
die("bad tree object %s", sha1_to_hex(obj->sha1));
obj->flags |= SEEN;
- add_object(obj, p, path, name);
+ show(obj, path, name);
me.up = path;
me.elem = name;
me.elem_len = strlen(name);
if (S_ISDIR(entry.mode))
process_tree(revs,
lookup_tree(entry.sha1),
- p, &me, entry.path);
+ show, &me, entry.path);
else if (S_ISGITLINK(entry.mode))
process_gitlink(revs, entry.sha1,
- p, &me, entry.path);
+ show, &me, entry.path);
else
process_blob(revs,
lookup_blob(entry.sha1),
- p, &me, entry.path);
+ show, &me, entry.path);
}
free(tree->buffer);
tree->buffer = NULL;
}
}
+ static void add_pending_tree(struct rev_info *revs, struct tree *tree)
+ {
+ add_pending_object(revs, &tree->object, "");
+ }
+
void traverse_commit_list(struct rev_info *revs,
show_commit_fn show_commit,
- show_object_fn show_object)
+ show_object_fn show_object,
+ void *data)
{
int i;
struct commit *commit;
- struct object_array objects = { 0, 0, NULL };
while ((commit = get_revision(revs)) != NULL) {
- process_tree(revs, commit->tree, &objects, NULL, "");
+ add_pending_tree(revs, commit->tree);
- show_commit(commit);
+ show_commit(commit, data);
}
for (i = 0; i < revs->pending.nr; i++) {
struct object_array_entry *pending = revs->pending.objects + i;
continue;
if (obj->type == OBJ_TAG) {
obj->flags |= SEEN;
- add_object_array(obj, name, &objects);
+ show_object(obj, NULL, name);
continue;
}
if (obj->type == OBJ_TREE) {
- process_tree(revs, (struct tree *)obj, &objects,
+ process_tree(revs, (struct tree *)obj, show_object,
NULL, name);
continue;
}
if (obj->type == OBJ_BLOB) {
- process_blob(revs, (struct blob *)obj, &objects,
+ process_blob(revs, (struct blob *)obj, show_object,
NULL, name);
continue;
}
die("unknown pending object %s (%s)",
sha1_to_hex(obj->sha1), name);
}
- for (i = 0; i < objects.nr; i++)
- show_object(&objects.objects[i], data);
- free(objects.objects);
if (revs->pending.nr) {
free(revs->pending.objects);
revs->pending.nr = 0;
#ifndef LIST_OBJECTS_H
#define LIST_OBJECTS_H
-typedef void (*show_commit_fn)(struct commit *);
+typedef void (*show_commit_fn)(struct commit *, void *);
- typedef void (*show_object_fn)(struct object_array_entry *, void *);
+ typedef void (*show_object_fn)(struct object *, const struct name_path *, const char *);
typedef void (*show_edge_fn)(struct commit *);
-void traverse_commit_list(struct rev_info *revs, show_commit_fn, show_object_fn);
+void traverse_commit_list(struct rev_info *, show_commit_fn, show_object_fn, void *);
void mark_edges_uninteresting(struct commit_list *, struct rev_info *, show_edge_fn);
#include "reflog-walk.h"
#include "patch-ids.h"
#include "decorate.h"
+#include "log-tree.h"
volatile show_early_output_fn_t show_early_output;
- static char *path_name(struct name_path *path, const char *name)
+ char *path_name(const struct name_path *path, const char *name)
{
- struct name_path *p;
+ const struct name_path *p;
char *n, *m;
int nlen = strlen(name);
int len = nlen + 1;
if (!tag->tagged)
die("bad tag");
object = parse_object(tag->tagged->sha1);
- if (!object)
+ if (!object) {
+ if (flags & UNINTERESTING)
+ return NULL;
die("bad object %s", sha1_to_hex(tag->tagged->sha1));
+ }
}
/*
mark_parents_uninteresting(commit);
revs->limited = 1;
}
+ if (revs->show_source && !commit->util)
+ commit->util = (void *) name;
return commit;
}
DIFF_OPT_SET(options, HAS_CHANGES);
}
-static int rev_compare_tree(struct rev_info *revs, struct tree *t1, struct tree *t2)
+static int rev_compare_tree(struct rev_info *revs, struct commit *parent, struct commit *commit)
{
+ struct tree *t1 = parent->tree;
+ struct tree *t2 = commit->tree;
+
if (!t1)
return REV_TREE_NEW;
+
+ if (revs->simplify_by_decoration) {
+ /*
+ * If we are simplifying by decoration, then the commit
+ * is worth showing if it has a tag pointing at it.
+ */
+ if (lookup_decoration(&name_decoration, &commit->object))
+ return REV_TREE_DIFFERENT;
+ /*
+ * A commit that is not pointed by a tag is uninteresting
+ * if we are not limited by path. This means that you will
+ * see the usual "commits that touch the paths" plus any
+ * tagged commit by specifying both --simplify-by-decoration
+ * and pathspec.
+ */
+ if (!revs->prune_data)
+ return REV_TREE_SAME;
+ }
if (!t2)
return REV_TREE_DIFFERENT;
tree_difference = REV_TREE_SAME;
return tree_difference;
}
-static int rev_same_tree_as_empty(struct rev_info *revs, struct tree *t1)
+static int rev_same_tree_as_empty(struct rev_info *revs, struct commit *commit)
{
int retval;
void *tree;
unsigned long size;
struct tree_desc empty, real;
+ struct tree *t1 = commit->tree;
if (!t1)
return 0;
return;
if (!commit->parents) {
- if (rev_same_tree_as_empty(revs, commit->tree))
+ if (rev_same_tree_as_empty(revs, commit))
commit->object.flags |= TREESAME;
return;
}
die("cannot simplify commit %s (because of %s)",
sha1_to_hex(commit->object.sha1),
sha1_to_hex(p->object.sha1));
- switch (rev_compare_tree(revs, p->tree, commit->tree)) {
+ switch (rev_compare_tree(revs, p, commit)) {
case REV_TREE_SAME:
tree_same = 1;
if (!revs->simplify_history || (p->object.flags & UNINTERESTING)) {
case REV_TREE_NEW:
if (revs->remove_empty_trees &&
- rev_same_tree_as_empty(revs, p->tree)) {
+ rev_same_tree_as_empty(revs, p)) {
/* We are adding all the specified
* paths from this parent, so the
* history beyond this parent is not
while (parent) {
struct commit *p = parent->item;
parent = parent->next;
+ if (p)
+ p->object.flags |= UNINTERESTING;
if (parse_commit(p) < 0)
- return -1;
- p->object.flags |= UNINTERESTING;
+ continue;
if (p->parents)
mark_parents_uninteresting(p);
if (p->object.flags & SEEN)
if (parse_commit(p) < 0)
return -1;
+ if (revs->show_source && !p->util)
+ p->util = commit->util;
p->object.flags |= left_flag;
if (!(p->object.flags & SEEN)) {
p->object.flags |= SEEN;
insert_by_date_cached(p, list, cached_base, cache_ptr);
}
- if(revs->first_parent_only)
+ if (revs->first_parent_only)
break;
}
return 0;
add_grep(revs, pattern, GREP_PATTERN_BODY);
}
-static void add_ignore_packed(struct rev_info *revs, const char *name)
-{
- int num = ++revs->num_ignore_packed;
-
- revs->ignore_packed = xrealloc(revs->ignore_packed,
- sizeof(const char *) * (num + 1));
- revs->ignore_packed[num-1] = name;
- revs->ignore_packed[num] = NULL;
-}
-
static int handle_revision_opt(struct rev_info *revs, int argc, const char **argv,
int *unkc, const char **unkv)
{
} else if (!strcmp(arg, "--topo-order")) {
revs->lifo = 1;
revs->topo_order = 1;
+ } else if (!strcmp(arg, "--simplify-merges")) {
+ revs->simplify_merges = 1;
+ revs->rewrite_parents = 1;
+ revs->simplify_history = 0;
+ revs->limited = 1;
+ } else if (!strcmp(arg, "--simplify-by-decoration")) {
+ revs->simplify_merges = 1;
+ revs->rewrite_parents = 1;
+ revs->simplify_history = 0;
+ revs->simplify_by_decoration = 1;
+ revs->limited = 1;
+ revs->prune = 1;
+ load_ref_decorations();
} else if (!strcmp(arg, "--date-order")) {
revs->lifo = 0;
revs->topo_order = 1;
revs->edge_hint = 1;
} else if (!strcmp(arg, "--unpacked")) {
revs->unpacked = 1;
- free(revs->ignore_packed);
- revs->ignore_packed = NULL;
- revs->num_ignore_packed = 0;
} else if (!prefixcmp(arg, "--unpacked=")) {
- revs->unpacked = 1;
- add_ignore_packed(revs, arg+11);
+ die("--unpacked=<packfile> no longer supported.");
} else if (!strcmp(arg, "-r")) {
revs->diff = 1;
DIFF_OPT_SET(&revs->diffopt, RECURSIVE);
} else if (!strcmp(arg, "--pretty")) {
revs->verbose_header = 1;
get_commit_format(arg+8, revs);
- } else if (!prefixcmp(arg, "--pretty=")) {
+ } else if (!prefixcmp(arg, "--pretty=") || !prefixcmp(arg, "--format=")) {
revs->verbose_header = 1;
get_commit_format(arg+9, revs);
+ } else if (!strcmp(arg, "--oneline")) {
+ revs->verbose_header = 1;
+ get_commit_format("oneline", revs);
+ revs->abbrev_commit = 1;
} else if (!strcmp(arg, "--graph")) {
revs->topo_order = 1;
revs->rewrite_parents = 1;
if (!strcmp(arg, "--all")) {
handle_refs(revs, flags, for_each_ref);
+ handle_refs(revs, flags, head_ref);
continue;
}
if (!strcmp(arg, "--branches")) {
l->next = add_decoration(&revs->children, &parent->object, l);
}
+static int remove_duplicate_parents(struct commit *commit)
+{
+ struct commit_list **pp, *p;
+ int surviving_parents;
+
+ /* Examine existing parents while marking ones we have seen... */
+ pp = &commit->parents;
+ while ((p = *pp) != NULL) {
+ struct commit *parent = p->item;
+ if (parent->object.flags & TMP_MARK) {
+ *pp = p->next;
+ continue;
+ }
+ parent->object.flags |= TMP_MARK;
+ pp = &p->next;
+ }
+ /* count them while clearing the temporary mark */
+ surviving_parents = 0;
+ for (p = commit->parents; p; p = p->next) {
+ p->item->object.flags &= ~TMP_MARK;
+ surviving_parents++;
+ }
+ return surviving_parents;
+}
+
+struct merge_simplify_state {
+ struct commit *simplified;
+};
+
+static struct merge_simplify_state *locate_simplify_state(struct rev_info *revs, struct commit *commit)
+{
+ struct merge_simplify_state *st;
+
+ st = lookup_decoration(&revs->merge_simplification, &commit->object);
+ if (!st) {
+ st = xcalloc(1, sizeof(*st));
+ add_decoration(&revs->merge_simplification, &commit->object, st);
+ }
+ return st;
+}
+
+static struct commit_list **simplify_one(struct rev_info *revs, struct commit *commit, struct commit_list **tail)
+{
+ struct commit_list *p;
+ struct merge_simplify_state *st, *pst;
+ int cnt;
+
+ st = locate_simplify_state(revs, commit);
+
+ /*
+ * Have we handled this one?
+ */
+ if (st->simplified)
+ return tail;
+
+ /*
+ * An UNINTERESTING commit simplifies to itself, so does a
+ * root commit. We do not rewrite parents of such commit
+ * anyway.
+ */
+ if ((commit->object.flags & UNINTERESTING) || !commit->parents) {
+ st->simplified = commit;
+ return tail;
+ }
+
+ /*
+ * Do we know what commit all of our parents should be rewritten to?
+ * Otherwise we are not ready to rewrite this one yet.
+ */
+ for (cnt = 0, p = commit->parents; p; p = p->next) {
+ pst = locate_simplify_state(revs, p->item);
+ if (!pst->simplified) {
+ tail = &commit_list_insert(p->item, tail)->next;
+ cnt++;
+ }
+ }
+ if (cnt) {
+ tail = &commit_list_insert(commit, tail)->next;
+ return tail;
+ }
+
+ /*
+ * Rewrite our list of parents.
+ */
+ for (p = commit->parents; p; p = p->next) {
+ pst = locate_simplify_state(revs, p->item);
+ p->item = pst->simplified;
+ }
+ cnt = remove_duplicate_parents(commit);
+
+ /*
+ * It is possible that we are a merge and one side branch
+ * does not have any commit that touches the given paths;
+ * in such a case, the immediate parents will be rewritten
+ * to different commits.
+ *
+ * o----X X: the commit we are looking at;
+ * / / o: a commit that touches the paths;
+ * ---o----'
+ *
+ * Further reduce the parents by removing redundant parents.
+ */
+ if (1 < cnt) {
+ struct commit_list *h = reduce_heads(commit->parents);
+ cnt = commit_list_count(h);
+ free_commit_list(commit->parents);
+ commit->parents = h;
+ }
+
+ /*
+ * A commit simplifies to itself if it is a root, if it is
+ * UNINTERESTING, if it touches the given paths, or if it is a
+ * merge and its parents simplifies to more than one commits
+ * (the first two cases are already handled at the beginning of
+ * this function).
+ *
+ * Otherwise, it simplifies to what its sole parent simplifies to.
+ */
+ if (!cnt ||
+ (commit->object.flags & UNINTERESTING) ||
+ !(commit->object.flags & TREESAME) ||
+ (1 < cnt))
+ st->simplified = commit;
+ else {
+ pst = locate_simplify_state(revs, commit->parents->item);
+ st->simplified = pst->simplified;
+ }
+ return tail;
+}
+
+static void simplify_merges(struct rev_info *revs)
+{
+ struct commit_list *list;
+ struct commit_list *yet_to_do, **tail;
+
+ if (!revs->topo_order)
+ sort_in_topological_order(&revs->commits, revs->lifo);
+ if (!revs->prune)
+ return;
+
+ /* feed the list reversed */
+ yet_to_do = NULL;
+ for (list = revs->commits; list; list = list->next)
+ commit_list_insert(list->item, &yet_to_do);
+ while (yet_to_do) {
+ list = yet_to_do;
+ yet_to_do = NULL;
+ tail = &yet_to_do;
+ while (list) {
+ struct commit *commit = list->item;
+ struct commit_list *next = list->next;
+ free(list);
+ list = next;
+ tail = simplify_one(revs, commit, tail);
+ }
+ }
+
+ /* clean up the result, removing the simplified ones */
+ list = revs->commits;
+ revs->commits = NULL;
+ tail = &revs->commits;
+ while (list) {
+ struct commit *commit = list->item;
+ struct commit_list *next = list->next;
+ struct merge_simplify_state *st;
+ free(list);
+ list = next;
+ st = locate_simplify_state(revs, commit);
+ if (st->simplified == commit)
+ tail = &commit_list_insert(commit, tail)->next;
+ }
+}
+
static void set_children(struct rev_info *revs)
{
struct commit_list *l;
return -1;
if (revs->topo_order)
sort_in_topological_order(&revs->commits, revs->lifo);
+ if (revs->simplify_merges)
+ simplify_merges(revs);
if (revs->children.name)
set_children(revs);
return 0;
}
}
-static void remove_duplicate_parents(struct commit *commit)
-{
- struct commit_list **pp, *p;
-
- /* Examine existing parents while marking ones we have seen... */
- pp = &commit->parents;
- while ((p = *pp) != NULL) {
- struct commit *parent = p->item;
- if (parent->object.flags & TMP_MARK) {
- *pp = p->next;
- continue;
- }
- parent->object.flags |= TMP_MARK;
- pp = &p->next;
- }
- /* ... and clear the temporary mark */
- for (p = commit->parents; p; p = p->next)
- p->item->object.flags &= ~TMP_MARK;
-}
-
static int rewrite_parents(struct rev_info *revs, struct commit *commit)
{
struct commit_list **pp = &commit->parents;
{
if (commit->object.flags & SHOWN)
return commit_ignore;
- if (revs->unpacked && has_sha1_pack(commit->object.sha1, revs->ignore_packed))
+ if (revs->unpacked && has_sha1_pack(commit->object.sha1))
return commit_ignore;
if (revs->show_all)
return commit_show;
(commit->date < revs->max_age))
continue;
if (add_parents_to_list(revs, commit, &revs->commits, NULL) < 0)
- return NULL;
+ die("Failed to traverse parents of commit %s",
+ sha1_to_hex(commit->object.sha1));
}
switch (simplify_commit(revs, commit)) {
case commit_ignore:
continue;
case commit_error:
- return NULL;
+ die("Failed to simplify parents of commit %s",
+ sha1_to_hex(commit->object.sha1));
default:
return commit;
}
return c;
}
- if (revs->reverse) {
- int limit = -1;
-
- if (0 <= revs->max_count) {
- limit = revs->max_count;
- if (0 < revs->skip_count)
- limit += revs->skip_count;
- }
- l = NULL;
- while ((c = get_revision_1(revs))) {
- commit_list_insert(c, &l);
- if ((0 < limit) && !--limit)
- break;
- }
- revs->commits = l;
- revs->reverse = 0;
- revs->max_count = -1;
- c = NULL;
- }
-
/*
* Now pick up what they want to give us
*/
struct commit *get_revision(struct rev_info *revs)
{
- struct commit *c = get_revision_internal(revs);
+ struct commit *c;
+ struct commit_list *reversed;
+
+ if (revs->reverse) {
+ reversed = NULL;
+ while ((c = get_revision_internal(revs))) {
+ commit_list_insert(c, &reversed);
+ }
+ revs->commits = reversed;
+ revs->reverse = 0;
+ revs->reverse_output_stage = 1;
+ }
+
+ if (revs->reverse_output_stage)
+ return pop_commit(&revs->commits);
+
+ c = get_revision_internal(revs);
if (c && revs->graph)
graph_update(revs->graph, c);
return c;
simplify_history:1,
lifo:1,
topo_order:1,
+ simplify_merges:1,
+ simplify_by_decoration:1,
tag_objects:1,
tree_objects:1,
blob_objects:1,
edge_hint:1,
limited:1,
- unpacked:1, /* see also ignore_packed below */
+ unpacked:1,
boundary:2,
left_right:1,
rewrite_parents:1,
print_parents:1,
+ show_source:1,
+ show_decorations:1,
reverse:1,
+ reverse_output_stage:1,
cherry_pick:1,
first_parent_only:1;
missing_newline:1;
enum date_mode date_mode;
- const char **ignore_packed; /* pretend objects in these are unpacked */
- int num_ignore_packed;
-
unsigned int abbrev;
enum cmit_fmt commit_format;
struct log_info *loginfo;
int nr, total;
const char *mime_boundary;
+ const char *patch_suffix;
+ int numbered_files;
char *message_id;
- const char *ref_message_id;
+ struct string_list *ref_message_ids;
const char *add_signoff;
const char *extra_headers;
const char *log_reencode;
struct reflog_walk_info *reflog_info;
struct decoration children;
+ struct decoration merge_simplification;
};
#define REV_TREE_SAME 0
const char *elem;
};
+ char *path_name(const struct name_path *path, const char *name);
+
extern void add_object(struct object *obj,
struct object_array *p,
struct name_path *path,
#include "list-objects.h"
#include "run-command.h"
-static const char upload_pack_usage[] = "git-upload-pack [--strict] [--timeout=nn] <dir>";
+static const char upload_pack_usage[] = "git upload-pack [--strict] [--timeout=nn] <dir>";
/* bits #0..7 in revision.h, #8..10 in commit.c */
#define THEY_HAVE (1u << 11)
}
static FILE *pack_pipe = NULL;
-static void show_commit(struct commit *commit)
+static void show_commit(struct commit *commit, void *data)
{
if (commit->object.flags & BOUNDARY)
fputc('-', pack_pipe);
commit->buffer = NULL;
}
- static void show_object(struct object_array_entry *p, void *data)
+ static void show_object(struct object *obj, const struct name_path *path, const char *component)
{
/* An object with name "foo\n0000000..." can be used to
* confuse downstream git-pack-objects very badly.
*/
- const char *ep = strchr(p->name, '\n');
+ const char *name = path_name(path, component);
+ const char *ep = strchr(name, '\n');
if (ep) {
- fprintf(pack_pipe, "%s %.*s\n", sha1_to_hex(p->item->sha1),
- (int) (ep - p->name),
- p->name);
+ fprintf(pack_pipe, "%s %.*s\n", sha1_to_hex(obj->sha1),
+ (int) (ep - name),
+ name);
}
else
fprintf(pack_pipe, "%s %s\n",
- sha1_to_hex(p->item->sha1), p->name);
+ sha1_to_hex(obj->sha1), name);
+ free((char *)name);
}
static void show_edge(struct commit *commit)
if (prepare_revision_walk(&revs))
die("revision walk setup failed");
mark_edges_uninteresting(revs.commits, &revs, show_edge);
- traverse_commit_list(&revs, show_commit, show_object);
+ traverse_commit_list(&revs, show_commit, show_object, NULL);
fflush(pack_pipe);
fclose(pack_pipe);
return 0;
static char line[1000];
unsigned char sha1[20];
char hex[41], last_hex[41];
- int len;
save_commit_buffer = 0;
for(;;) {
- len = packet_read_line(0, line, sizeof(line));
+ int len = packet_read_line(0, line, sizeof(line));
reset_timeout();
if (!len) {
packet_write(1, "NAK\n");
continue;
}
- len = strip(line, len);
+ strip(line, len);
if (!prefixcmp(line, "have ")) {
switch (got_sha1(line+5, sha1)) {
case -1: /* they have what we do not */
int i;
int strict = 0;
+ git_extract_argv0_path(argv[0]);
+
for (i = 1; i < argc; i++) {
char *arg = argv[i];
dir = argv[i];
if (!enter_repo(dir, strict))
- die("'%s': unable to chdir or not a git archive", dir);
+ die("'%s' does not appear to be a git repository", dir);
if (is_repository_shallow())
die("attempt to fetch/clone from a shallow repository");
if (getenv("GIT_DEBUG_SEND_PACK"))
projects / git.git / commitdiff