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-rw-r--r--fast-import.c665
1 files changed, 454 insertions, 211 deletions
diff --git a/fast-import.c b/fast-import.c
index 2105310c54..309f2c58a2 100644
--- a/fast-import.c
+++ b/fast-import.c
@@ -164,12 +164,11 @@ Format of STDIN stream:
struct object_entry
{
+ struct pack_idx_entry idx;
struct object_entry *next;
- uint32_t offset;
uint32_t type : TYPE_BITS,
pack_id : PACK_ID_BITS,
depth : DEPTH_BITS;
- unsigned char sha1[20];
};
struct object_entry_pool
@@ -192,7 +191,7 @@ struct mark_set
struct last_object
{
struct strbuf data;
- uint32_t offset;
+ off_t offset;
unsigned int depth;
unsigned no_swap : 1;
};
@@ -245,6 +244,7 @@ struct branch
const char *name;
struct tree_entry branch_tree;
uintmax_t last_commit;
+ uintmax_t num_notes;
unsigned active : 1;
unsigned pack_id : PACK_ID_BITS;
unsigned char sha1[20];
@@ -279,7 +279,7 @@ struct recent_command
/* Configured limits on output */
static unsigned long max_depth = 10;
-static off_t max_packsize = (1LL << 32) - 1;
+static off_t max_packsize;
static uintmax_t big_file_threshold = 512 * 1024 * 1024;
static int force_update;
static int pack_compression_level = Z_DEFAULT_COMPRESSION;
@@ -296,6 +296,9 @@ static unsigned long branch_count;
static unsigned long branch_load_count;
static int failure;
static FILE *pack_edges;
+static unsigned int show_stats = 1;
+static int global_argc;
+static const char **global_argv;
/* Memory pools */
static size_t mem_pool_alloc = 2*1024*1024 - sizeof(struct mem_pool);
@@ -309,16 +312,20 @@ static struct atom_str **atom_table;
/* The .pack file being generated */
static unsigned int pack_id;
+static struct sha1file *pack_file;
static struct packed_git *pack_data;
static struct packed_git **all_packs;
-static unsigned long pack_size;
+static off_t pack_size;
/* Table of objects we've written. */
static unsigned int object_entry_alloc = 5000;
static struct object_entry_pool *blocks;
static struct object_entry *object_table[1 << 16];
static struct mark_set *marks;
-static const char *mark_file;
+static const char *export_marks_file;
+static const char *import_marks_file;
+static int import_marks_file_from_stream;
+static int relative_marks_paths;
/* Our last blob */
static struct last_object last_blob = { STRBUF_INIT, 0, 0, 0 };
@@ -352,6 +359,9 @@ static struct recent_command *rc_free;
static unsigned int cmd_save = 100;
static uintmax_t next_mark;
static struct strbuf new_data = STRBUF_INIT;
+static int seen_data_command;
+
+static void parse_argv(void);
static void write_branch_report(FILE *rpt, struct branch *b)
{
@@ -455,8 +465,8 @@ static void write_crash_report(const char *err)
fputc('\n', rpt);
fputs("Marks\n", rpt);
fputs("-----\n", rpt);
- if (mark_file)
- fprintf(rpt, " exported to %s\n", mark_file);
+ if (export_marks_file)
+ fprintf(rpt, " exported to %s\n", export_marks_file);
else
dump_marks_helper(rpt, 0, marks);
@@ -511,7 +521,7 @@ static struct object_entry *new_object(unsigned char *sha1)
alloc_objects(object_entry_alloc);
e = blocks->next_free++;
- hashcpy(e->sha1, sha1);
+ hashcpy(e->idx.sha1, sha1);
return e;
}
@@ -520,7 +530,7 @@ static struct object_entry *find_object(unsigned char *sha1)
unsigned int h = sha1[0] << 8 | sha1[1];
struct object_entry *e;
for (e = object_table[h]; e; e = e->next)
- if (!hashcmp(sha1, e->sha1))
+ if (!hashcmp(sha1, e->idx.sha1))
return e;
return NULL;
}
@@ -532,7 +542,7 @@ static struct object_entry *insert_object(unsigned char *sha1)
struct object_entry *p = NULL;
while (e) {
- if (!hashcmp(sha1, e->sha1))
+ if (!hashcmp(sha1, e->idx.sha1))
return e;
p = e;
e = e->next;
@@ -540,7 +550,7 @@ static struct object_entry *insert_object(unsigned char *sha1)
e = new_object(sha1);
e->next = NULL;
- e->offset = 0;
+ e->idx.offset = 0;
if (p)
p->next = e;
else
@@ -694,6 +704,7 @@ static struct branch *new_branch(const char *name)
b->table_next_branch = branch_table[hc];
b->branch_tree.versions[0].mode = S_IFDIR;
b->branch_tree.versions[1].mode = S_IFDIR;
+ b->num_notes = 0;
b->active = 0;
b->pack_id = MAX_PACK_ID;
branch_table[hc] = b;
@@ -828,11 +839,12 @@ static void start_packfile(void)
p = xcalloc(1, sizeof(*p) + strlen(tmpfile) + 2);
strcpy(p->pack_name, tmpfile);
p->pack_fd = pack_fd;
+ pack_file = sha1fd(pack_fd, p->pack_name);
hdr.hdr_signature = htonl(PACK_SIGNATURE);
hdr.hdr_version = htonl(2);
hdr.hdr_entries = 0;
- write_or_die(p->pack_fd, &hdr, sizeof(hdr));
+ sha1write(pack_file, &hdr, sizeof(hdr));
pack_data = p;
pack_size = sizeof(hdr);
@@ -842,67 +854,30 @@ static void start_packfile(void)
all_packs[pack_id] = p;
}
-static int oecmp (const void *a_, const void *b_)
+static const char *create_index(void)
{
- struct object_entry *a = *((struct object_entry**)a_);
- struct object_entry *b = *((struct object_entry**)b_);
- return hashcmp(a->sha1, b->sha1);
-}
-
-static char *create_index(void)
-{
- static char tmpfile[PATH_MAX];
- git_SHA_CTX ctx;
- struct sha1file *f;
- struct object_entry **idx, **c, **last, *e;
+ const char *tmpfile;
+ struct pack_idx_entry **idx, **c, **last;
+ struct object_entry *e;
struct object_entry_pool *o;
- uint32_t array[256];
- int i, idx_fd;
- /* Build the sorted table of object IDs. */
- idx = xmalloc(object_count * sizeof(struct object_entry*));
+ /* Build the table of object IDs. */
+ idx = xmalloc(object_count * sizeof(*idx));
c = idx;
for (o = blocks; o; o = o->next_pool)
for (e = o->next_free; e-- != o->entries;)
if (pack_id == e->pack_id)
- *c++ = e;
+ *c++ = &e->idx;
last = idx + object_count;
if (c != last)
die("internal consistency error creating the index");
- qsort(idx, object_count, sizeof(struct object_entry*), oecmp);
- /* Generate the fan-out array. */
- c = idx;
- for (i = 0; i < 256; i++) {
- struct object_entry **next = c;
- while (next < last) {
- if ((*next)->sha1[0] != i)
- break;
- next++;
- }
- array[i] = htonl(next - idx);
- c = next;
- }
-
- idx_fd = odb_mkstemp(tmpfile, sizeof(tmpfile),
- "pack/tmp_idx_XXXXXX");
- f = sha1fd(idx_fd, tmpfile);
- sha1write(f, array, 256 * sizeof(int));
- git_SHA1_Init(&ctx);
- for (c = idx; c != last; c++) {
- uint32_t offset = htonl((*c)->offset);
- sha1write(f, &offset, 4);
- sha1write(f, (*c)->sha1, sizeof((*c)->sha1));
- git_SHA1_Update(&ctx, (*c)->sha1, 20);
- }
- sha1write(f, pack_data->sha1, sizeof(pack_data->sha1));
- sha1close(f, NULL, CSUM_FSYNC);
+ tmpfile = write_idx_file(NULL, idx, object_count, pack_data->sha1);
free(idx);
- git_SHA1_Final(pack_data->sha1, &ctx);
return tmpfile;
}
-static char *keep_pack(char *curr_index_name)
+static char *keep_pack(const char *curr_index_name)
{
static char name[PATH_MAX];
static const char *keep_msg = "fast-import";
@@ -924,6 +899,7 @@ static char *keep_pack(char *curr_index_name)
get_object_directory(), sha1_to_hex(pack_data->sha1));
if (move_temp_to_file(curr_index_name, name))
die("cannot store index file");
+ free((void *)curr_index_name);
return name;
}
@@ -946,15 +922,17 @@ static void end_packfile(void)
clear_delta_base_cache();
if (object_count) {
+ unsigned char cur_pack_sha1[20];
char *idx_name;
int i;
struct branch *b;
struct tag *t;
close_pack_windows(pack_data);
+ sha1close(pack_file, cur_pack_sha1, 0);
fixup_pack_header_footer(pack_data->pack_fd, pack_data->sha1,
pack_data->pack_name, object_count,
- NULL, 0);
+ cur_pack_sha1, pack_size);
close(pack_data->pack_fd);
idx_name = keep_pack(create_index());
@@ -1002,29 +980,6 @@ static void cycle_packfile(void)
start_packfile();
}
-static size_t encode_header(
- enum object_type type,
- uintmax_t size,
- unsigned char *hdr)
-{
- int n = 1;
- unsigned char c;
-
- if (type < OBJ_COMMIT || type > OBJ_REF_DELTA)
- die("bad type %d", type);
-
- c = (type << 4) | (size & 15);
- size >>= 4;
- while (size) {
- *hdr++ = c | 0x80;
- c = size & 0x7f;
- size >>= 7;
- n++;
- }
- *hdr = c;
- return n;
-}
-
static int store_object(
enum object_type type,
struct strbuf *dat,
@@ -1052,25 +1007,21 @@ static int store_object(
e = insert_object(sha1);
if (mark)
insert_mark(mark, e);
- if (e->offset) {
+ if (e->idx.offset) {
duplicate_count_by_type[type]++;
return 1;
} else if (find_sha1_pack(sha1, packed_git)) {
e->type = type;
e->pack_id = MAX_PACK_ID;
- e->offset = 1; /* just not zero! */
+ e->idx.offset = 1; /* just not zero! */
duplicate_count_by_type[type]++;
return 1;
}
- if (last && last->data.buf && last->depth < max_depth) {
+ if (last && last->data.buf && last->depth < max_depth && dat->len > 20) {
delta = diff_delta(last->data.buf, last->data.len,
dat->buf, dat->len,
- &deltalen, 0);
- if (delta && deltalen >= dat->len) {
- free(delta);
- delta = NULL;
- }
+ &deltalen, dat->len - 20);
} else
delta = NULL;
@@ -1090,7 +1041,7 @@ static int store_object(
deflateEnd(&s);
/* Determine if we should auto-checkpoint. */
- if ((pack_size + 60 + s.total_out) > max_packsize
+ if ((max_packsize && (pack_size + 60 + s.total_out) > max_packsize)
|| (pack_size + 60 + s.total_out) < pack_size) {
/* This new object needs to *not* have the current pack_id. */
@@ -1116,36 +1067,40 @@ static int store_object(
e->type = type;
e->pack_id = pack_id;
- e->offset = pack_size;
+ e->idx.offset = pack_size;
object_count++;
object_count_by_type[type]++;
+ crc32_begin(pack_file);
+
if (delta) {
- unsigned long ofs = e->offset - last->offset;
+ off_t ofs = e->idx.offset - last->offset;
unsigned pos = sizeof(hdr) - 1;
delta_count_by_type[type]++;
e->depth = last->depth + 1;
- hdrlen = encode_header(OBJ_OFS_DELTA, deltalen, hdr);
- write_or_die(pack_data->pack_fd, hdr, hdrlen);
+ hdrlen = encode_in_pack_object_header(OBJ_OFS_DELTA, deltalen, hdr);
+ sha1write(pack_file, hdr, hdrlen);
pack_size += hdrlen;
hdr[pos] = ofs & 127;
while (ofs >>= 7)
hdr[--pos] = 128 | (--ofs & 127);
- write_or_die(pack_data->pack_fd, hdr + pos, sizeof(hdr) - pos);
+ sha1write(pack_file, hdr + pos, sizeof(hdr) - pos);
pack_size += sizeof(hdr) - pos;
} else {
e->depth = 0;
- hdrlen = encode_header(type, dat->len, hdr);
- write_or_die(pack_data->pack_fd, hdr, hdrlen);
+ hdrlen = encode_in_pack_object_header(type, dat->len, hdr);
+ sha1write(pack_file, hdr, hdrlen);
pack_size += hdrlen;
}
- write_or_die(pack_data->pack_fd, out, s.total_out);
+ sha1write(pack_file, out, s.total_out);
pack_size += s.total_out;
+ e->idx.crc32 = crc32_end(pack_file);
+
free(out);
free(delta);
if (last) {
@@ -1154,18 +1109,23 @@ static int store_object(
} else {
strbuf_swap(&last->data, dat);
}
- last->offset = e->offset;
+ last->offset = e->idx.offset;
last->depth = e->depth;
}
return 0;
}
-static void truncate_pack(off_t to)
+static void truncate_pack(off_t to, git_SHA_CTX *ctx)
{
if (ftruncate(pack_data->pack_fd, to)
|| lseek(pack_data->pack_fd, to, SEEK_SET) != to)
die_errno("cannot truncate pack to skip duplicate");
pack_size = to;
+
+ /* yes this is a layering violation */
+ pack_file->total = to;
+ pack_file->offset = 0;
+ pack_file->ctx = *ctx;
}
static void stream_blob(uintmax_t len, unsigned char *sha1out, uintmax_t mark)
@@ -1178,16 +1138,21 @@ static void stream_blob(uintmax_t len, unsigned char *sha1out, uintmax_t mark)
unsigned long hdrlen;
off_t offset;
git_SHA_CTX c;
+ git_SHA_CTX pack_file_ctx;
z_stream s;
int status = Z_OK;
/* Determine if we should auto-checkpoint. */
- if ((pack_size + 60 + len) > max_packsize
+ if ((max_packsize && (pack_size + 60 + len) > max_packsize)
|| (pack_size + 60 + len) < pack_size)
cycle_packfile();
offset = pack_size;
+ /* preserve the pack_file SHA1 ctx in case we have to truncate later */
+ sha1flush(pack_file);
+ pack_file_ctx = pack_file->ctx;
+
hdrlen = snprintf((char *)out_buf, out_sz, "blob %" PRIuMAX, len) + 1;
if (out_sz <= hdrlen)
die("impossibly large object header");
@@ -1195,10 +1160,12 @@ static void stream_blob(uintmax_t len, unsigned char *sha1out, uintmax_t mark)
git_SHA1_Init(&c);
git_SHA1_Update(&c, out_buf, hdrlen);
+ crc32_begin(pack_file);
+
memset(&s, 0, sizeof(s));
deflateInit(&s, pack_compression_level);
- hdrlen = encode_header(OBJ_BLOB, len, out_buf);
+ hdrlen = encode_in_pack_object_header(OBJ_BLOB, len, out_buf);
if (out_sz <= hdrlen)
die("impossibly large object header");
@@ -1222,7 +1189,7 @@ static void stream_blob(uintmax_t len, unsigned char *sha1out, uintmax_t mark)
if (!s.avail_out || status == Z_STREAM_END) {
size_t n = s.next_out - out_buf;
- write_or_die(pack_data->pack_fd, out_buf, n);
+ sha1write(pack_file, out_buf, n);
pack_size += n;
s.next_out = out_buf;
s.avail_out = out_sz;
@@ -1248,22 +1215,23 @@ static void stream_blob(uintmax_t len, unsigned char *sha1out, uintmax_t mark)
if (mark)
insert_mark(mark, e);
- if (e->offset) {
+ if (e->idx.offset) {
duplicate_count_by_type[OBJ_BLOB]++;
- truncate_pack(offset);
+ truncate_pack(offset, &pack_file_ctx);
} else if (find_sha1_pack(sha1, packed_git)) {
e->type = OBJ_BLOB;
e->pack_id = MAX_PACK_ID;
- e->offset = 1; /* just not zero! */
+ e->idx.offset = 1; /* just not zero! */
duplicate_count_by_type[OBJ_BLOB]++;
- truncate_pack(offset);
+ truncate_pack(offset, &pack_file_ctx);
} else {
e->depth = 0;
e->type = OBJ_BLOB;
e->pack_id = pack_id;
- e->offset = offset;
+ e->idx.offset = offset;
+ e->idx.crc32 = crc32_end(pack_file);
object_count++;
object_count_by_type[OBJ_BLOB]++;
}
@@ -1306,6 +1274,7 @@ static void *gfi_unpack_entry(
* the newly written data.
*/
close_pack_windows(p);
+ sha1flush(pack_file);
/* We have to offer 20 bytes additional on the end of
* the packfile as the core unpacker code assumes the
@@ -1315,7 +1284,7 @@ static void *gfi_unpack_entry(
*/
p->pack_size = pack_size + 20;
}
- return unpack_entry(p, oe->offset, &type, sizep);
+ return unpack_entry(p, oe->idx.offset, &type, sizep);
}
static const char *get_mode(const char *str, uint16_t *modep)
@@ -1446,7 +1415,7 @@ static void store_tree(struct tree_entry *root)
if (S_ISDIR(root->versions[0].mode) && le && le->pack_id == pack_id) {
mktree(t, 0, &old_tree);
lo.data = old_tree;
- lo.offset = le->offset;
+ lo.offset = le->idx.offset;
lo.depth = t->delta_depth;
}
@@ -1704,7 +1673,7 @@ static void dump_marks_helper(FILE *f,
for (k = 0; k < 1024; k++) {
if (m->data.marked[k])
fprintf(f, ":%" PRIuMAX " %s\n", base + k,
- sha1_to_hex(m->data.marked[k]->sha1));
+ sha1_to_hex(m->data.marked[k]->idx.sha1));
}
}
}
@@ -1715,13 +1684,13 @@ static void dump_marks(void)
int mark_fd;
FILE *f;
- if (!mark_file)
+ if (!export_marks_file)
return;
- mark_fd = hold_lock_file_for_update(&mark_lock, mark_file, 0);
+ mark_fd = hold_lock_file_for_update(&mark_lock, export_marks_file, 0);
if (mark_fd < 0) {
failure |= error("Unable to write marks file %s: %s",
- mark_file, strerror(errno));
+ export_marks_file, strerror(errno));
return;
}
@@ -1730,7 +1699,7 @@ static void dump_marks(void)
int saved_errno = errno;
rollback_lock_file(&mark_lock);
failure |= error("Unable to write marks file %s: %s",
- mark_file, strerror(saved_errno));
+ export_marks_file, strerror(saved_errno));
return;
}
@@ -1746,7 +1715,7 @@ static void dump_marks(void)
int saved_errno = errno;
rollback_lock_file(&mark_lock);
failure |= error("Unable to write marks file %s: %s",
- mark_file, strerror(saved_errno));
+ export_marks_file, strerror(saved_errno));
return;
}
@@ -1754,11 +1723,47 @@ static void dump_marks(void)
int saved_errno = errno;
rollback_lock_file(&mark_lock);
failure |= error("Unable to commit marks file %s: %s",
- mark_file, strerror(saved_errno));
+ export_marks_file, strerror(saved_errno));
return;
}
}
+static void read_marks(void)
+{
+ char line[512];
+ FILE *f = fopen(import_marks_file, "r");
+ if (!f)
+ die_errno("cannot read '%s'", import_marks_file);
+ while (fgets(line, sizeof(line), f)) {
+ uintmax_t mark;
+ char *end;
+ unsigned char sha1[20];
+ struct object_entry *e;
+
+ end = strchr(line, '\n');
+ if (line[0] != ':' || !end)
+ die("corrupt mark line: %s", line);
+ *end = 0;
+ mark = strtoumax(line + 1, &end, 10);
+ if (!mark || end == line + 1
+ || *end != ' ' || get_sha1(end + 1, sha1))
+ die("corrupt mark line: %s", line);
+ e = find_object(sha1);
+ if (!e) {
+ enum object_type type = sha1_object_info(sha1, NULL);
+ if (type < 0)
+ die("object not found: %s", sha1_to_hex(sha1));
+ e = insert_object(sha1);
+ e->type = type;
+ e->pack_id = MAX_PACK_ID;
+ e->idx.offset = 1; /* just not zero! */
+ }
+ insert_mark(mark, e);
+ }
+ fclose(f);
+}
+
+
static int read_next_command(void)
{
static int stdin_eof = 0;
@@ -1779,6 +1784,12 @@ static int read_next_command(void)
if (stdin_eof)
return EOF;
+ if (!seen_data_command
+ && prefixcmp(command_buf.buf, "feature ")
+ && prefixcmp(command_buf.buf, "option ")) {
+ parse_argv();
+ }
+
rc = rc_free;
if (rc)
rc_free = rc->next;
@@ -1998,6 +2009,109 @@ static void load_branch(struct branch *b)
}
}
+static unsigned char convert_num_notes_to_fanout(uintmax_t num_notes)
+{
+ unsigned char fanout = 0;
+ while ((num_notes >>= 8))
+ fanout++;
+ return fanout;
+}
+
+static void construct_path_with_fanout(const char *hex_sha1,
+ unsigned char fanout, char *path)
+{
+ unsigned int i = 0, j = 0;
+ if (fanout >= 20)
+ die("Too large fanout (%u)", fanout);
+ while (fanout) {
+ path[i++] = hex_sha1[j++];
+ path[i++] = hex_sha1[j++];
+ path[i++] = '/';
+ fanout--;
+ }
+ memcpy(path + i, hex_sha1 + j, 40 - j);
+ path[i + 40 - j] = '\0';
+}
+
+static uintmax_t do_change_note_fanout(
+ struct tree_entry *orig_root, struct tree_entry *root,
+ char *hex_sha1, unsigned int hex_sha1_len,
+ char *fullpath, unsigned int fullpath_len,
+ unsigned char fanout)
+{
+ struct tree_content *t = root->tree;
+ struct tree_entry *e, leaf;
+ unsigned int i, tmp_hex_sha1_len, tmp_fullpath_len;
+ uintmax_t num_notes = 0;
+ unsigned char sha1[20];
+ char realpath[60];
+
+ for (i = 0; t && i < t->entry_count; i++) {
+ e = t->entries[i];
+ tmp_hex_sha1_len = hex_sha1_len + e->name->str_len;
+ tmp_fullpath_len = fullpath_len;
+
+ /*
+ * We're interested in EITHER existing note entries (entries
+ * with exactly 40 hex chars in path, not including directory
+ * separators), OR directory entries that may contain note
+ * entries (with < 40 hex chars in path).
+ * Also, each path component in a note entry must be a multiple
+ * of 2 chars.
+ */
+ if (!e->versions[1].mode ||
+ tmp_hex_sha1_len > 40 ||
+ e->name->str_len % 2)
+ continue;
+
+ /* This _may_ be a note entry, or a subdir containing notes */
+ memcpy(hex_sha1 + hex_sha1_len, e->name->str_dat,
+ e->name->str_len);
+ if (tmp_fullpath_len)
+ fullpath[tmp_fullpath_len++] = '/';
+ memcpy(fullpath + tmp_fullpath_len, e->name->str_dat,
+ e->name->str_len);
+ tmp_fullpath_len += e->name->str_len;
+ fullpath[tmp_fullpath_len] = '\0';
+
+ if (tmp_hex_sha1_len == 40 && !get_sha1_hex(hex_sha1, sha1)) {
+ /* This is a note entry */
+ construct_path_with_fanout(hex_sha1, fanout, realpath);
+ if (!strcmp(fullpath, realpath)) {
+ /* Note entry is in correct location */
+ num_notes++;
+ continue;
+ }
+
+ /* Rename fullpath to realpath */
+ if (!tree_content_remove(orig_root, fullpath, &leaf))
+ die("Failed to remove path %s", fullpath);
+ tree_content_set(orig_root, realpath,
+ leaf.versions[1].sha1,
+ leaf.versions[1].mode,
+ leaf.tree);
+ } else if (S_ISDIR(e->versions[1].mode)) {
+ /* This is a subdir that may contain note entries */
+ if (!e->tree)
+ load_tree(e);
+ num_notes += do_change_note_fanout(orig_root, e,
+ hex_sha1, tmp_hex_sha1_len,
+ fullpath, tmp_fullpath_len, fanout);
+ }
+
+ /* The above may have reallocated the current tree_content */
+ t = root->tree;
+ }
+ return num_notes;
+}
+
+static uintmax_t change_note_fanout(struct tree_entry *root,
+ unsigned char fanout)
+{
+ char hex_sha1[40], path[60];
+ return do_change_note_fanout(root, root, hex_sha1, 0, path, 0, fanout);
+}
+
static void file_change_m(struct branch *b)
{
const char *p = command_buf.buf + 2;
@@ -2027,7 +2141,7 @@ static void file_change_m(struct branch *b)
if (*p == ':') {
char *x;
oe = find_mark(strtoumax(p + 1, &x, 10));
- hashcpy(sha1, oe->sha1);
+ hashcpy(sha1, oe->idx.sha1);
p = x;
} else if (!prefixcmp(p, "inline")) {
inline_data = 1;
@@ -2145,20 +2259,22 @@ static void file_change_cr(struct branch *b, int rename)
leaf.tree);
}
-static void note_change_n(struct branch *b)
+static void note_change_n(struct branch *b, unsigned char old_fanout)
{
const char *p = command_buf.buf + 2;
static struct strbuf uq = STRBUF_INIT;
struct object_entry *oe = oe;
struct branch *s;
unsigned char sha1[20], commit_sha1[20];
+ char path[60];
uint16_t inline_data = 0;
+ unsigned char new_fanout;
/* <dataref> or 'inline' */
if (*p == ':') {
char *x;
oe = find_mark(strtoumax(p + 1, &x, 10));
- hashcpy(sha1, oe->sha1);
+ hashcpy(sha1, oe->idx.sha1);
p = x;
} else if (!prefixcmp(p, "inline")) {
inline_data = 1;
@@ -2181,7 +2297,7 @@ static void note_change_n(struct branch *b)
struct object_entry *commit_oe = find_mark(commit_mark);
if (commit_oe->type != OBJ_COMMIT)
die("Mark :%" PRIuMAX " not a commit", commit_mark);
- hashcpy(commit_sha1, commit_oe->sha1);
+ hashcpy(commit_sha1, commit_oe->idx.sha1);
} else if (!get_sha1(p, commit_sha1)) {
unsigned long size;
char *buf = read_object_with_reference(commit_sha1,
@@ -2203,7 +2319,7 @@ static void note_change_n(struct branch *b)
if (oe->type != OBJ_BLOB)
die("Not a blob (actually a %s): %s",
typename(oe->type), command_buf.buf);
- } else {
+ } else if (!is_null_sha1(sha1)) {
enum object_type type = sha1_object_info(sha1, NULL);
if (type < 0)
die("Blob not found: %s", command_buf.buf);
@@ -2212,8 +2328,17 @@ static void note_change_n(struct branch *b)
typename(type), command_buf.buf);
}
- tree_content_set(&b->branch_tree, sha1_to_hex(commit_sha1), sha1,
- S_IFREG | 0644, NULL);
+ construct_path_with_fanout(sha1_to_hex(commit_sha1), old_fanout, path);
+ if (tree_content_remove(&b->branch_tree, path, NULL))
+ b->num_notes--;
+
+ if (is_null_sha1(sha1))
+ return; /* nothing to insert */
+
+ b->num_notes++;
+ new_fanout = convert_num_notes_to_fanout(b->num_notes);
+ construct_path_with_fanout(sha1_to_hex(commit_sha1), new_fanout, path);
+ tree_content_set(&b->branch_tree, path, sha1, S_IFREG | 0644, NULL);
}
static void file_change_deleteall(struct branch *b)
@@ -2222,6 +2347,7 @@ static void file_change_deleteall(struct branch *b)
hashclr(b->branch_tree.versions[0].sha1);
hashclr(b->branch_tree.versions[1].sha1);
load_tree(&b->branch_tree);
+ b->num_notes = 0;
}
static void parse_from_commit(struct branch *b, char *buf, unsigned long size)
@@ -2278,7 +2404,7 @@ static int parse_from(struct branch *b)
struct object_entry *oe = find_mark(idnum);
if (oe->type != OBJ_COMMIT)
die("Mark :%" PRIuMAX " not a commit", idnum);
- hashcpy(b->sha1, oe->sha1);
+ hashcpy(b->sha1, oe->idx.sha1);
if (oe->pack_id != MAX_PACK_ID) {
unsigned long size;
char *buf = gfi_unpack_entry(oe, &size);
@@ -2313,7 +2439,7 @@ static struct hash_list *parse_merge(unsigned int *count)
struct object_entry *oe = find_mark(idnum);
if (oe->type != OBJ_COMMIT)
die("Mark :%" PRIuMAX " not a commit", idnum);
- hashcpy(n->sha1, oe->sha1);
+ hashcpy(n->sha1, oe->idx.sha1);
} else if (!get_sha1(from, n->sha1)) {
unsigned long size;
char *buf = read_object_with_reference(n->sha1,
@@ -2345,6 +2471,7 @@ static void parse_new_commit(void)
char *committer = NULL;
struct hash_list *merge_list = NULL;
unsigned int merge_count;
+ unsigned char prev_fanout, new_fanout;
/* Obtain the branch name from the rest of our command */
sp = strchr(command_buf.buf, ' ') + 1;
@@ -2375,6 +2502,8 @@ static void parse_new_commit(void)
load_branch(b);
}
+ prev_fanout = convert_num_notes_to_fanout(b->num_notes);
+
/* file_change* */
while (command_buf.len > 0) {
if (!prefixcmp(command_buf.buf, "M "))
@@ -2386,7 +2515,7 @@ static void parse_new_commit(void)
else if (!prefixcmp(command_buf.buf, "C "))
file_change_cr(b, 0);
else if (!prefixcmp(command_buf.buf, "N "))
- note_change_n(b);
+ note_change_n(b, prev_fanout);
else if (!strcmp("deleteall", command_buf.buf))
file_change_deleteall(b);
else {
@@ -2397,6 +2526,10 @@ static void parse_new_commit(void)
break;
}
+ new_fanout = convert_num_notes_to_fanout(b->num_notes);
+ if (new_fanout != prev_fanout)
+ b->num_notes = change_note_fanout(&b->branch_tree, new_fanout);
+
/* build the tree and the commit */
store_tree(&b->branch_tree);
hashcpy(b->branch_tree.versions[0].sha1,
@@ -2464,7 +2597,7 @@ static void parse_new_tag(void)
from_mark = strtoumax(from + 1, NULL, 10);
oe = find_mark(from_mark);
type = oe->type;
- hashcpy(sha1, oe->sha1);
+ hashcpy(sha1, oe->idx.sha1);
} else if (!get_sha1(from, sha1)) {
unsigned long size;
char *buf;
@@ -2552,39 +2685,150 @@ static void parse_progress(void)
skip_optional_lf();
}
-static void import_marks(const char *input_file)
+static char* make_fast_import_path(const char *path)
{
- char line[512];
- FILE *f = fopen(input_file, "r");
- if (!f)
- die_errno("cannot read '%s'", input_file);
- while (fgets(line, sizeof(line), f)) {
- uintmax_t mark;
- char *end;
- unsigned char sha1[20];
- struct object_entry *e;
+ struct strbuf abs_path = STRBUF_INIT;
- end = strchr(line, '\n');
- if (line[0] != ':' || !end)
- die("corrupt mark line: %s", line);
- *end = 0;
- mark = strtoumax(line + 1, &end, 10);
- if (!mark || end == line + 1
- || *end != ' ' || get_sha1(end + 1, sha1))
- die("corrupt mark line: %s", line);
- e = find_object(sha1);
- if (!e) {
- enum object_type type = sha1_object_info(sha1, NULL);
- if (type < 0)
- die("object not found: %s", sha1_to_hex(sha1));
- e = insert_object(sha1);
- e->type = type;
- e->pack_id = MAX_PACK_ID;
- e->offset = 1; /* just not zero! */
+ if (!relative_marks_paths || is_absolute_path(path))
+ return xstrdup(path);
+ strbuf_addf(&abs_path, "%s/info/fast-import/%s", get_git_dir(), path);
+ return strbuf_detach(&abs_path, NULL);
+}
+
+static void option_import_marks(const char *marks, int from_stream)
+{
+ if (import_marks_file) {
+ if (from_stream)
+ die("Only one import-marks command allowed per stream");
+
+ /* read previous mark file */
+ if(!import_marks_file_from_stream)
+ read_marks();
+ }
+
+ import_marks_file = make_fast_import_path(marks);
+ import_marks_file_from_stream = from_stream;
+}
+
+static void option_date_format(const char *fmt)
+{
+ if (!strcmp(fmt, "raw"))
+ whenspec = WHENSPEC_RAW;
+ else if (!strcmp(fmt, "rfc2822"))
+ whenspec = WHENSPEC_RFC2822;
+ else if (!strcmp(fmt, "now"))
+ whenspec = WHENSPEC_NOW;
+ else
+ die("unknown --date-format argument %s", fmt);
+}
+
+static void option_depth(const char *depth)
+{
+ max_depth = strtoul(depth, NULL, 0);
+ if (max_depth > MAX_DEPTH)
+ die("--depth cannot exceed %u", MAX_DEPTH);
+}
+
+static void option_active_branches(const char *branches)
+{
+ max_active_branches = strtoul(branches, NULL, 0);
+}
+
+static void option_export_marks(const char *marks)
+{
+ export_marks_file = make_fast_import_path(marks);
+}
+
+static void option_export_pack_edges(const char *edges)
+{
+ if (pack_edges)
+ fclose(pack_edges);
+ pack_edges = fopen(edges, "a");
+ if (!pack_edges)
+ die_errno("Cannot open '%s'", edges);
+}
+
+static int parse_one_option(const char *option)
+{
+ if (!prefixcmp(option, "max-pack-size=")) {
+ unsigned long v;
+ if (!git_parse_ulong(option + 14, &v))
+ return 0;
+ if (v < 8192) {
+ warning("max-pack-size is now in bytes, assuming --max-pack-size=%lum", v);
+ v *= 1024 * 1024;
+ } else if (v < 1024 * 1024) {
+ warning("minimum max-pack-size is 1 MiB");
+ v = 1024 * 1024;
}
- insert_mark(mark, e);
+ max_packsize = v;
+ } else if (!prefixcmp(option, "big-file-threshold=")) {
+ unsigned long v;
+ if (!git_parse_ulong(option + 19, &v))
+ return 0;
+ big_file_threshold = v;
+ } else if (!prefixcmp(option, "depth=")) {
+ option_depth(option + 6);
+ } else if (!prefixcmp(option, "active-branches=")) {
+ option_active_branches(option + 16);
+ } else if (!prefixcmp(option, "export-pack-edges=")) {
+ option_export_pack_edges(option + 18);
+ } else if (!prefixcmp(option, "quiet")) {
+ show_stats = 0;
+ } else if (!prefixcmp(option, "stats")) {
+ show_stats = 1;
+ } else {
+ return 0;
}
- fclose(f);
+
+ return 1;
+}
+
+static int parse_one_feature(const char *feature, int from_stream)
+{
+ if (!prefixcmp(feature, "date-format=")) {
+ option_date_format(feature + 12);
+ } else if (!prefixcmp(feature, "import-marks=")) {
+ option_import_marks(feature + 13, from_stream);
+ } else if (!prefixcmp(feature, "export-marks=")) {
+ option_export_marks(feature + 13);
+ } else if (!prefixcmp(feature, "relative-marks")) {
+ relative_marks_paths = 1;
+ } else if (!prefixcmp(feature, "no-relative-marks")) {
+ relative_marks_paths = 0;
+ } else if (!prefixcmp(feature, "force")) {
+ force_update = 1;
+ } else {
+ return 0;
+ }
+
+ return 1;
+}
+
+static void parse_feature(void)
+{
+ char *feature = command_buf.buf + 8;
+
+ if (seen_data_command)
+ die("Got feature command '%s' after data command", feature);
+
+ if (parse_one_feature(feature, 1))
+ return;
+
+ die("This version of fast-import does not support feature %s.", feature);
+}
+
+static void parse_option(void)
+{
+ char *option = command_buf.buf + 11;
+
+ if (seen_data_command)
+ die("Got option command '%s' after data command", option);
+
+ if (parse_one_option(option))
+ return;
+
+ die("This version of fast-import does not support option: %s", option);
}
static int git_pack_config(const char *k, const char *v, void *cb)
@@ -2605,6 +2849,17 @@ static int git_pack_config(const char *k, const char *v, void *cb)
pack_compression_seen = 1;
return 0;
}
+ if (!strcmp(k, "pack.indexversion")) {
+ pack_idx_default_version = git_config_int(k, v);
+ if (pack_idx_default_version > 2)
+ die("bad pack.indexversion=%"PRIu32,
+ pack_idx_default_version);
+ return 0;
+ }
+ if (!strcmp(k, "pack.packsizelimit")) {
+ max_packsize = git_config_ulong(k, v);
+ return 0;
+ }
if (!strcmp(k, "core.bigfilethreshold")) {
long n = git_config_int(k, v);
big_file_threshold = 0 < n ? n : 0;
@@ -2615,9 +2870,35 @@ static int git_pack_config(const char *k, const char *v, void *cb)
static const char fast_import_usage[] =
"git fast-import [--date-format=f] [--max-pack-size=n] [--big-file-threshold=n] [--depth=n] [--active-branches=n] [--export-marks=marks.file]";
+static void parse_argv(void)
+{
+ unsigned int i;
+
+ for (i = 1; i < global_argc; i++) {
+ const char *a = global_argv[i];
+
+ if (*a != '-' || !strcmp(a, "--"))
+ break;
+
+ if (parse_one_option(a + 2))
+ continue;
+
+ if (parse_one_feature(a + 2, 0))
+ continue;
+
+ die("unknown option %s", a);
+ }
+ if (i != global_argc)
+ usage(fast_import_usage);
+
+ seen_data_command = 1;
+ if (import_marks_file)
+ read_marks();
+}
+
int main(int argc, const char **argv)
{
- unsigned int i, show_stats = 1;
+ unsigned int i;
git_extract_argv0_path(argv[0]);
@@ -2636,57 +2917,8 @@ int main(int argc, const char **argv)
avail_tree_table = xcalloc(avail_tree_table_sz, sizeof(struct avail_tree_content*));
marks = pool_calloc(1, sizeof(struct mark_set));
- for (i = 1; i < argc; i++) {
- const char *a = argv[i];
-
- if (*a != '-' || !strcmp(a, "--"))
- break;
- else if (!prefixcmp(a, "--date-format=")) {
- const char *fmt = a + 14;
- if (!strcmp(fmt, "raw"))
- whenspec = WHENSPEC_RAW;
- else if (!strcmp(fmt, "rfc2822"))
- whenspec = WHENSPEC_RFC2822;
- else if (!strcmp(fmt, "now"))
- whenspec = WHENSPEC_NOW;
- else
- die("unknown --date-format argument %s", fmt);
- }
- else if (!prefixcmp(a, "--max-pack-size="))
- max_packsize = strtoumax(a + 16, NULL, 0) * 1024 * 1024;
- else if (!prefixcmp(a, "--big-file-threshold=")) {
- unsigned long v;
- if (!git_parse_ulong(a + 21, &v))
- usage(fast_import_usage);
- big_file_threshold = v;
- } else if (!prefixcmp(a, "--depth=")) {
- max_depth = strtoul(a + 8, NULL, 0);
- if (max_depth > MAX_DEPTH)
- die("--depth cannot exceed %u", MAX_DEPTH);
- }
- else if (!prefixcmp(a, "--active-branches="))
- max_active_branches = strtoul(a + 18, NULL, 0);
- else if (!prefixcmp(a, "--import-marks="))
- import_marks(a + 15);
- else if (!prefixcmp(a, "--export-marks="))
- mark_file = a + 15;
- else if (!prefixcmp(a, "--export-pack-edges=")) {
- if (pack_edges)
- fclose(pack_edges);
- pack_edges = fopen(a + 20, "a");
- if (!pack_edges)
- die_errno("Cannot open '%s'", a + 20);
- } else if (!strcmp(a, "--force"))
- force_update = 1;
- else if (!strcmp(a, "--quiet"))
- show_stats = 0;
- else if (!strcmp(a, "--stats"))
- show_stats = 1;
- else
- die("unknown option %s", a);
- }
- if (i != argc)
- usage(fast_import_usage);
+ global_argc = argc;
+ global_argv = argv;
rc_free = pool_alloc(cmd_save * sizeof(*rc_free));
for (i = 0; i < (cmd_save - 1); i++)
@@ -2709,9 +2941,20 @@ int main(int argc, const char **argv)
parse_checkpoint();
else if (!prefixcmp(command_buf.buf, "progress "))
parse_progress();
+ else if (!prefixcmp(command_buf.buf, "feature "))
+ parse_feature();
+ else if (!prefixcmp(command_buf.buf, "option git "))
+ parse_option();
+ else if (!prefixcmp(command_buf.buf, "option "))
+ /* ignore non-git options*/;
else
die("Unsupported command: %s", command_buf.buf);
}
+
+ /* argv hasn't been parsed yet, do so */
+ if (!seen_data_command)
+ parse_argv();
+
end_packfile();
dump_branches();
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-30 21:18:25 +0000