#include "delta.h"
#include "pack.h"
#include "csum-file.h"
++ #include "diff.h"
#include <sys/time.h>
++#include <signal.h>
- static const char pack_usage[] = "git-pack-objects [-q] [--non-empty] [--local] [--incremental] [--window=N] [--depth=N] {--stdout | base-name} < object-list";
+ static const char pack_usage[] = "git-pack-objects [-q] [--no-reuse-delta] [--non-empty] [--local] [--incremental] [--window=N] [--depth=N] {--stdout | base-name} < object-list";
struct object_entry {
unsigned char sha1[20];
- unsigned long size;
- unsigned long offset;
- unsigned int depth;
- unsigned int hash;
+ unsigned long size; /* uncompressed size */
+ unsigned long offset; /* offset into the final pack file;
+ * nonzero if already written.
+ */
+ unsigned int depth; /* delta depth */
+ unsigned int delta_limit; /* base adjustment for in-pack delta */
+ unsigned int hash; /* name hint hash */
enum object_type type;
- unsigned long delta_size;
- struct object_entry *delta;
+ enum object_type in_pack_type; /* could be delta */
+ unsigned long delta_size; /* delta data size (uncompressed) */
+ struct object_entry *delta; /* delta base object */
+ struct packed_git *in_pack; /* already in pack */
+ unsigned int in_pack_offset;
+ struct object_entry *delta_child; /* delitified objects who bases me */
+ struct object_entry *delta_sibling; /* other deltified objects who
+ * uses the same base as me
+ */
++ int preferred_base; /* we do not pack this, but is encouraged to
++ * be used as the base objectto delta huge
++ * objects against.
++ */
++ int based_on_preferred; /* current delta candidate is a preferred
++ * one, or delta against a preferred one.
++ */
};
+ /*
+ * Objects we are going to pack are colected in objects array (dynamically
+ * expanded). nr_objects & nr_alloc controls this array. They are stored
+ * in the order we see -- typically rev-list --objects order that gives us
+ * nice "minimum seek" order.
+ *
+ * sorted-by-sha ans sorted-by-type are arrays of pointers that point at
+ * elements in the objects array. The former is used to build the pack
+ * index (lists object names in the ascending order to help offset lookup),
+ * and the latter is used to group similar things together by try_delta()
+ * heuristics.
+ */
+
static unsigned char object_list_sha1[20];
static int non_empty = 0;
+ static int no_reuse_delta = 0;
static int local = 0;
static int incremental = 0;
static struct object_entry **sorted_by_sha, **sorted_by_type;
static const char *base_name;
static unsigned char pack_file_sha1[20];
static int progress = 1;
++static volatile int progress_update = 0;
+
+ /*
+ * The object names in objects array are hashed with this hashtable,
+ * to help looking up the entry by object name. Binary search from
+ * sorted_by_sha is also possible but this was easier to code and faster.
+ * This hashtable is built after all the objects are seen.
+ */
+ static int *object_ix = NULL;
+ static int object_ix_hashsz = 0;
+
+ /*
+ * Pack index for existing packs give us easy access to the offsets into
+ * corresponding pack file where each object's data starts, but the entries
+ * do not store the size of the compressed representation (uncompressed
+ * size is easily available by examining the pack entry header). We build
+ * a hashtable of existing packs (pack_revindex), and keep reverse index
+ * here -- pack index file is sorted by object name mapping to offset; this
+ * pack_revindex[].revindex array is an ordered list of offsets, so if you
+ * know the offset of an object, next offset is where its packed
+ * representation ends.
+ */
+ struct pack_revindex {
+ struct packed_git *p;
+ unsigned long *revindex;
+ } *pack_revindex = NULL;
+ static int pack_revindex_hashsz = 0;
+
+ /*
+ * stats
+ */
+ static int written = 0;
+ static int written_delta = 0;
+ static int reused = 0;
+ static int reused_delta = 0;
+
+ static int pack_revindex_ix(struct packed_git *p)
+ {
+ unsigned int ui = (unsigned int) p;
+ int i;
+
+ ui = ui ^ (ui >> 16); /* defeat structure alignment */
+ i = (int)(ui % pack_revindex_hashsz);
+ while (pack_revindex[i].p) {
+ if (pack_revindex[i].p == p)
+ return i;
+ if (++i == pack_revindex_hashsz)
+ i = 0;
+ }
+ return -1 - i;
+ }
+
+ static void prepare_pack_ix(void)
+ {
+ int num;
+ struct packed_git *p;
+ for (num = 0, p = packed_git; p; p = p->next)
+ num++;
+ if (!num)
+ return;
+ pack_revindex_hashsz = num * 11;
+ pack_revindex = xcalloc(sizeof(*pack_revindex), pack_revindex_hashsz);
+ for (p = packed_git; p; p = p->next) {
+ num = pack_revindex_ix(p);
+ num = - 1 - num;
+ pack_revindex[num].p = p;
+ }
+ /* revindex elements are lazily initialized */
+ }
+
+ static int cmp_offset(const void *a_, const void *b_)
+ {
+ unsigned long a = *(unsigned long *) a_;
+ unsigned long b = *(unsigned long *) b_;
+ if (a < b)
+ return -1;
+ else if (a == b)
+ return 0;
+ else
+ return 1;
+ }
+
+ /*
+ * Ordered list of offsets of objects in the pack.
+ */
+ static void prepare_pack_revindex(struct pack_revindex *rix)
+ {
+ struct packed_git *p = rix->p;
+ int num_ent = num_packed_objects(p);
+ int i;
+ void *index = p->index_base + 256;
+
+ rix->revindex = xmalloc(sizeof(unsigned long) * (num_ent + 1));
+ for (i = 0; i < num_ent; i++) {
+ long hl = *((long *)(index + 24 * i));
+ rix->revindex[i] = ntohl(hl);
+ }
+ /* This knows the pack format -- the 20-byte trailer
+ * follows immediately after the last object data.
+ */
+ rix->revindex[num_ent] = p->pack_size - 20;
+ qsort(rix->revindex, num_ent, sizeof(unsigned long), cmp_offset);
+ }
+
+ static unsigned long find_packed_object_size(struct packed_git *p,
+ unsigned long ofs)
+ {
+ int num;
+ int lo, hi;
+ struct pack_revindex *rix;
+ unsigned long *revindex;
+ num = pack_revindex_ix(p);
+ if (num < 0)
+ die("internal error: pack revindex uninitialized");
+ rix = &pack_revindex[num];
+ if (!rix->revindex)
+ prepare_pack_revindex(rix);
+ revindex = rix->revindex;
+ lo = 0;
+ hi = num_packed_objects(p) + 1;
+ do {
+ int mi = (lo + hi) / 2;
+ if (revindex[mi] == ofs) {
+ return revindex[mi+1] - ofs;
+ }
+ else if (ofs < revindex[mi])
+ hi = mi;
+ else
+ lo = mi + 1;
+ } while (lo < hi);
+ die("internal error: pack revindex corrupt");
+ }
static void *delta_against(void *buf, unsigned long size, struct object_entry *entry)
{
unsigned char header[10];
unsigned hdrlen, datalen;
enum object_type obj_type;
+ int to_reuse = 0;
- if (!buf)
- die("unable to read %s", sha1_to_hex(entry->sha1));
- if (size != entry->size)
- die("object %s size inconsistency (%lu vs %lu)", sha1_to_hex(entry->sha1), size, entry->size);
++ if (entry->preferred_base)
++ return 0;
+
- /*
- * The object header is a byte of 'type' followed by zero or
- * more bytes of length. For deltas, the 20 bytes of delta sha1
- * follows that.
- */
obj_type = entry->type;
- if (entry->delta) {
- buf = delta_against(buf, size, entry);
- size = entry->delta_size;
- obj_type = OBJ_DELTA;
- }
- hdrlen = encode_header(obj_type, size, header);
- sha1write(f, header, hdrlen);
- if (entry->delta) {
- sha1write(f, entry->delta, 20);
- hdrlen += 20;
- }
- datalen = sha1write_compressed(f, buf, size);
- free(buf);
+ if (! entry->in_pack)
+ to_reuse = 0; /* can't reuse what we don't have */
+ else if (obj_type == OBJ_DELTA)
+ to_reuse = 1; /* check_object() decided it for us */
+ else if (obj_type != entry->in_pack_type)
+ to_reuse = 0; /* pack has delta which is unusable */
+ else if (entry->delta)
+ to_reuse = 0; /* we want to pack afresh */
+ else
+ to_reuse = 1; /* we have it in-pack undeltified,
+ * and we do not need to deltify it.
+ */
+
+ if (! to_reuse) {
+ buf = read_sha1_file(entry->sha1, type, &size);
+ if (!buf)
+ die("unable to read %s", sha1_to_hex(entry->sha1));
+ if (size != entry->size)
+ die("object %s size inconsistency (%lu vs %lu)",
+ sha1_to_hex(entry->sha1), size, entry->size);
+ if (entry->delta) {
+ buf = delta_against(buf, size, entry);
+ size = entry->delta_size;
+ obj_type = OBJ_DELTA;
+ }
+ /*
+ * The object header is a byte of 'type' followed by zero or
+ * more bytes of length. For deltas, the 20 bytes of delta
+ * sha1 follows that.
+ */
+ hdrlen = encode_header(obj_type, size, header);
+ sha1write(f, header, hdrlen);
+
+ if (entry->delta) {
+ sha1write(f, entry->delta, 20);
+ hdrlen += 20;
+ }
+ datalen = sha1write_compressed(f, buf, size);
+ free(buf);
+ }
+ else {
+ struct packed_git *p = entry->in_pack;
+ use_packed_git(p);
+
+ datalen = find_packed_object_size(p, entry->in_pack_offset);
+ buf = p->pack_base + entry->in_pack_offset;
+ sha1write(f, buf, datalen);
+ unuse_packed_git(p);
+ hdrlen = 0; /* not really */
+ if (obj_type == OBJ_DELTA)
+ reused_delta++;
+ reused++;
+ }
+ if (obj_type == OBJ_DELTA)
+ written_delta++;
+ written++;
return hdrlen + datalen;
}
int i;
struct sha1file *f;
unsigned long offset;
- unsigned long mb;
struct pack_header hdr;
++ unsigned last_percent = 999;
++ int do_progress = 0;
if (!base_name)
f = sha1fd(1, "<stdout>");
-- else
- f = sha1create("%s-%s.%s", base_name, sha1_to_hex(object_list_sha1), "pack");
++ else {
+ f = sha1create("%s-%s.%s", base_name,
+ sha1_to_hex(object_list_sha1), "pack");
++ do_progress = progress;
++ }
++ if (do_progress)
- fprintf(stderr, "Writing %d objects.\n", nr_objects);
+++ fprintf(stderr, "Writing %d objects.\n", nr_result);
++
hdr.hdr_signature = htonl(PACK_SIGNATURE);
hdr.hdr_version = htonl(PACK_VERSION);
-- hdr.hdr_entries = htonl(nr_objects);
++ hdr.hdr_entries = htonl(nr_result);
sha1write(f, &hdr, sizeof(hdr));
offset = sizeof(hdr);
-- for (i = 0; i < nr_objects; i++)
+++ if (!nr_result)
+++ goto done;
++ for (i = 0; i < nr_objects; i++) {
offset = write_one(f, objects + i, offset);
--
++ if (do_progress) {
- unsigned percent = written * 100 / nr_objects;
+++ unsigned percent = written * 100 / nr_result;
++ if (progress_update || percent != last_percent) {
++ fprintf(stderr, "%4u%% (%u/%u) done\r",
- percent, written, nr_objects);
+++ percent, written, nr_result);
++ progress_update = 0;
++ last_percent = percent;
++ }
++ }
++ }
++ if (do_progress)
++ fputc('\n', stderr);
-
+++ done:
sha1close(f, pack_file_sha1, 1);
- mb = offset >> 20;
- offset &= 0xfffff;
}
static void write_index_file(void)
{
unsigned int idx = nr_objects;
struct object_entry *entry;
-
- for (p = packed_git; p; p = p->next) {
- struct pack_entry e;
- if (find_pack_entry_one(sha1, &e, p)) {
- if (incremental)
- return 0;
- if (local && !p->pack_local)
- return 0;
- if (!found_pack) {
- found_offset = e.offset;
- found_pack = e.p;
+ struct packed_git *p;
+ unsigned int found_offset = 0;
+ struct packed_git *found_pack = NULL;
- if (incremental || local) {
- struct packed_git *p;
-
++ int ix, status = 0;
+
-
++ if (!exclude) {
+ for (p = packed_git; p; p = p->next) {
+ struct pack_entry e;
+ if (find_pack_entry_one(sha1, &e, p)) {
+ if (incremental)
+ return 0;
+ if (local && !p->pack_local)
+ return 0;
++ if (!found_pack) {
++ found_offset = e.offset;
++ found_pack = e.p;
++ }
}
}
}
memset(entry, 0, sizeof(*entry));
memcpy(entry->sha1, sha1, 20);
entry->hash = hash;
- if (found_pack) {
- entry->in_pack = found_pack;
- entry->in_pack_offset = found_offset;
- nr_objects = idx+1;
- return 1;
++
++ if (object_ix_hashsz * 3 <= nr_objects * 4)
++ rehash_objects();
++ else {
++ ix = locate_object_entry_hash(entry->sha1);
++ if (0 <= ix)
++ die("internal error in object hashing.");
++ object_ix[-1 - ix] = idx + 1;
+ }
- nr_objects = idx+1;
- return 1;
++ status = 1;
++
++ already_added:
+++ if (progress_update) {
+++ fprintf(stderr, "Counting objects...%d\r", nr_objects);
+++ progress_update = 0;
+++ }
++ if (exclude)
++ entry->preferred_base = 1;
++ else {
++ if (found_pack) {
++ entry->in_pack = found_pack;
++ entry->in_pack_offset = found_offset;
++ }
++ }
++ return status;
+ }
+
- static int locate_object_entry_hash(unsigned char *sha1)
++ static void add_pbase_tree(struct tree_desc *tree, struct name_path *up)
+ {
- int i;
- unsigned int ui;
- memcpy(&ui, sha1, sizeof(unsigned int));
- i = ui % object_ix_hashsz;
- while (0 < object_ix[i]) {
- if (!memcmp(sha1, objects[object_ix[i]-1].sha1, 20))
- return i;
- if (++i == object_ix_hashsz)
- i = 0;
++ while (tree->size) {
++ const unsigned char *sha1;
++ const char *name;
++ unsigned mode, hash;
++ unsigned long size;
++ char type[20];
++
++ sha1 = tree_entry_extract(tree, &name, &mode);
++ update_tree_entry(tree);
++ if (!has_sha1_file(sha1))
++ continue;
++ if (sha1_object_info(sha1, type, &size))
++ continue;
++
++ hash = name_hash(up, name);
++ if (!add_object_entry(sha1, hash, 1))
++ continue;
++
++ if (!strcmp(type, "tree")) {
++ struct tree_desc sub;
++ void *elem;
++ struct name_path me;
++
++ elem = read_sha1_file(sha1, type, &sub.size);
++ sub.buf = elem;
++ if (sub.buf) {
++ me.up = up;
++ me.elem = name;
++ me.len = strlen(name);
++ add_pbase_tree(&sub, &me);
++ free(elem);
++ }
++ }
+ }
- return -1 - i;
+ }
+
- static struct object_entry *locate_object_entry(unsigned char *sha1)
++ static void add_preferred_base(unsigned char *sha1)
+ {
- int i = locate_object_entry_hash(sha1);
- if (0 <= i)
- return &objects[object_ix[i]-1];
- return NULL;
++ struct tree_desc tree;
++ void *elem;
++
++ elem = read_object_with_reference(sha1, "tree", &tree.size, NULL);
++ tree.buf = elem;
++ if (!tree.buf)
++ return;
++ if (add_object_entry(sha1, name_hash(NULL, ""), 1))
++ add_pbase_tree(&tree, NULL);
++ free(elem);
}
static void check_object(struct object_entry *entry)
{
char type[20];
- if (entry->in_pack) {
- if (!sha1_object_info(entry->sha1, type, &entry->size)) {
- if (!strcmp(type, "commit")) {
- entry->type = OBJ_COMMIT;
- } else if (!strcmp(type, "tree")) {
- entry->type = OBJ_TREE;
- } else if (!strcmp(type, "blob")) {
- entry->type = OBJ_BLOB;
- } else if (!strcmp(type, "tag")) {
- entry->type = OBJ_TAG;
- } else
- die("unable to pack object %s of type %s",
- sha1_to_hex(entry->sha1), type);
++ if (entry->in_pack && !entry->preferred_base) {
+ unsigned char base[20];
+ unsigned long size;
+ struct object_entry *base_entry;
+
+ /* We want in_pack_type even if we do not reuse delta.
+ * There is no point not reusing non-delta representations.
+ */
+ check_reuse_pack_delta(entry->in_pack,
+ entry->in_pack_offset,
+ base, &size,
+ &entry->in_pack_type);
+
+ /* Check if it is delta, and the base is also an object
+ * we are going to pack. If so we will reuse the existing
+ * delta.
+ */
+ if (!no_reuse_delta &&
+ entry->in_pack_type == OBJ_DELTA &&
- (base_entry = locate_object_entry(base))) {
++ (base_entry = locate_object_entry(base)) &&
++ (!base_entry->preferred_base)) {
+
+ /* Depth value does not matter - find_deltas()
+ * will never consider reused delta as the
+ * base object to deltify other objects
+ * against, in order to avoid circular deltas.
+ */
+
+ /* uncompressed size of the delta data */
+ entry->size = entry->delta_size = size;
+ entry->delta = base_entry;
+ entry->type = OBJ_DELTA;
+
+ entry->delta_sibling = base_entry->delta_child;
+ base_entry->delta_child = entry;
+
+ return;
+ }
+ /* Otherwise we would do the usual */
}
- else
+
+ if (sha1_object_info(entry->sha1, type, &entry->size))
die("unable to get type of object %s",
sha1_to_hex(entry->sha1));
- static void hash_objects(void)
- {
- int i;
- struct object_entry *oe;
-
- object_ix_hashsz = nr_objects * 2;
- object_ix = xcalloc(sizeof(int), object_ix_hashsz);
- for (i = 0, oe = objects; i < nr_objects; i++, oe++) {
- int ix = locate_object_entry_hash(oe->sha1);
- if (0 <= ix) {
- error("the same object '%s' added twice",
- sha1_to_hex(oe->sha1));
- continue;
- }
- ix = -1 - ix;
- object_ix[ix] = i + 1;
- }
- }
-
+
+ if (!strcmp(type, "commit")) {
+ entry->type = OBJ_COMMIT;
+ } else if (!strcmp(type, "tree")) {
+ entry->type = OBJ_TREE;
+ } else if (!strcmp(type, "blob")) {
+ entry->type = OBJ_BLOB;
+ } else if (!strcmp(type, "tag")) {
+ entry->type = OBJ_TAG;
+ } else
+ die("unable to pack object %s of type %s",
+ sha1_to_hex(entry->sha1), type);
+ }
+
+ static unsigned int check_delta_limit(struct object_entry *me, unsigned int n)
+ {
+ struct object_entry *child = me->delta_child;
+ unsigned int m = n;
+ while (child) {
+ unsigned int c = check_delta_limit(child, n + 1);
+ if (m < c)
+ m = c;
+ child = child->delta_sibling;
+ }
+ return m;
}
static void get_object_details(void)
{
int i;
- struct object_entry *entry = objects;
+ struct object_entry *entry;
- hash_objects();
- for (i = 0; i < nr_objects; i++)
- check_object(entry++);
+ prepare_pack_ix();
+ for (i = 0, entry = objects; i < nr_objects; i++, entry++)
+ check_object(entry);
- for (i = 0, entry = objects; i < nr_objects; i++, entry++)
- if (!entry->delta && entry->delta_child)
- entry->delta_limit =
- check_delta_limit(entry, 1);
++
++ if (nr_objects == nr_result) {
++ /*
++ * Depth of objects that depend on the entry -- this
++ * is subtracted from depth-max to break too deep
++ * delta chain because of delta data reusing.
++ * However, we loosen this restriction when we know we
++ * are creating a thin pack -- it will have to be
++ * expanded on the other end anyway, so do not
++ * artificially cut the delta chain and let it go as
++ * deep as it wants.
++ */
++ for (i = 0, entry = objects; i < nr_objects; i++, entry++)
++ if (!entry->delta && entry->delta_child)
++ entry->delta_limit =
++ check_delta_limit(entry, 1);
++ }
}
typedef int (*entry_sort_t)(const struct object_entry *, const struct object_entry *);
if (cur_entry->type != old_entry->type)
return -1;
- /* If the current object is at edge, take the depth the objects
- * that depend on the current object into account -- otherwise
- * they would become too deep.
- size = cur_entry->size;
- if (size < 50)
++ /* We do not compute delta to *create* objects we are not
++ * going to pack.
++ */
++ if (cur_entry->preferred_base)
+ return -1;
++
++ /* If the current object is at pack edge, take the depth the
++ * objects that depend on the current object into account --
++ * otherwise they would become too deep.
+ */
+ if (cur_entry->delta_child) {
+ if (max_depth <= cur_entry->delta_limit)
+ return 0;
+ max_depth -= cur_entry->delta_limit;
+ }
+
+ size = cur_entry->size;
- - if (size < 50)
- - return -1;
oldsize = old_entry->size;
sizediff = oldsize > size ? oldsize - size : size - oldsize;
--- if (sizediff > size / 8)
+++
+++ if (size < 50)
return -1;
if (old_entry->depth >= max_depth)
return 0;
memset(array, 0, array_size);
i = nr_objects;
idx = 0;
-- eye_candy = i - (nr_objects / 20);
++ if (progress)
- fprintf(stderr, "Deltifying %d objects.\n", nr_objects);
+++ fprintf(stderr, "Deltifying %d objects.\n", nr_result);
while (--i >= 0) {
struct object_entry *entry = list[i];
char type[10];
int j;
- processed++;
-- if (progress && i <= eye_candy) {
-- eye_candy -= nr_objects / 20;
-- fputc('.', stderr);
+++ if (!entry->preferred_base)
+++ processed++;
+++
++ if (progress) {
- unsigned percent = processed * 100 / nr_objects;
+++ unsigned percent = processed * 100 / nr_result;
++ if (percent != last_percent || progress_update) {
++ fprintf(stderr, "%4u%% (%u/%u) done\r",
- percent, processed, nr_objects);
+++ percent, processed, nr_result);
++ progress_update = 0;
++ last_percent = percent;
++ }
}
+
+ if (entry->delta)
+ /* This happens if we decided to reuse existing
+ * delta from a pack. "!no_reuse_delta &&" is implied.
+ */
+ continue;
+
free(n->data);
n->entry = entry;
n->data = read_sha1_file(entry->sha1, type, &size);
static void prepare_pack(int window, int depth)
{
- if (progress)
- fprintf(stderr, "Packing %d objects", nr_result);
get_object_details();
-
-- if (progress)
- fprintf(stderr, "Packing %d objects", nr_objects);
- fputc('.', stderr);
-
sorted_by_type = create_sorted_list(type_size_sort);
if (window && depth)
find_deltas(sorted_by_type, window+1, depth);
usage(pack_usage);
prepare_packed_git();
++
if (progress) {
++ struct itimerval v;
++ v.it_interval.tv_sec = 1;
++ v.it_interval.tv_usec = 0;
++ v.it_value = v.it_interval;
++ signal(SIGALRM, progress_interval);
++ setitimer(ITIMER_REAL, &v, NULL);
fprintf(stderr, "Generating pack...\n");
-- gettimeofday(&prev_tv, NULL);
}
++
while (fgets(line, sizeof(line), stdin) != NULL) {
-- unsigned int hash;
-- char *p;
unsigned char sha1[20];
- if (progress_update) {
-- if (progress && (eye_candy <= nr_objects)) {
--- fprintf(stderr, "Counting objects...%d\r", nr_objects);
- progress_update = 0;
-- if (eye_candy && (50 <= eye_candy_incr)) {
-- struct timeval tv;
-- int time_diff;
-- gettimeofday(&tv, NULL);
-- time_diff = (tv.tv_sec - prev_tv.tv_sec);
-- time_diff <<= 10;
-- time_diff += (tv.tv_usec - prev_tv.tv_usec);
-- if ((1 << 9) < time_diff)
-- eye_candy_incr += 50;
-- else if (50 < eye_candy_incr)
-- eye_candy_incr -= 50;
-- }
-- eye_candy += eye_candy_incr;
- }
++ if (line[0] == '-') {
++ if (get_sha1_hex(line+1, sha1))
++ die("expected edge sha1, got garbage:\n %s",
++ line+1);
++ add_preferred_base(sha1);
++ continue;
}
if (get_sha1_hex(line, sha1))
die("expected sha1, got garbage:\n %s", line);
}
if (progress)
fprintf(stderr, "Done counting %d objects.\n", nr_objects);
--- if (non_empty && !nr_objects)
+++ sorted_by_sha = create_final_object_list();
+++ if (non_empty && !nr_result)
return 0;
-- sorted_by_sha = create_sorted_list(sha1_sort);
- sorted_by_sha = create_final_object_list();
SHA1_Init(&ctx);
list = sorted_by_sha;
-- for (i = 0; i < nr_objects; i++) {
++ for (i = 0; i < nr_result; i++) {
struct object_entry *entry = *list++;
SHA1_Update(&ctx, entry->sha1, 20);
}
if (reuse_cached_pack(object_list_sha1, pack_to_stdout))
;
else {
--- prepare_pack(window, depth);
+++ if (nr_result)
+++ prepare_pack(window, depth);
++ if (progress && pack_to_stdout) {
++ /* the other end usually displays progress itself */
++ struct itimerval v = {{0,},};
++ setitimer(ITIMER_REAL, &v, NULL);
++ signal(SIGALRM, SIG_IGN );
++ progress_update = 0;
++ }
++ write_pack_file();
if (!pack_to_stdout) {
write_index_file();
puts(sha1_to_hex(object_list_sha1));
}
}
- nr_objects, written, written_delta, reused, reused_delta);
+ if (progress)
+ fprintf(stderr, "Total %d, written %d (delta %d), reused %d (delta %d)\n",
++ nr_result, written, written_delta, reused, reused_delta);
return 0;
}
projects / git.git / commitdiff