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diff --git a/fast-import.c b/fast-import.c
index f246d5347b4131f274edad5c7c687fb7ddbbd99e..52d33bcba8c5ca834fc944bbb2d47ae14bf2f7b8 100644 (file)
--- a/fast-import.c
+++ b/fast-import.c
/*
+(See Documentation/git-fast-import.txt for maintained documentation.)
Format of STDIN stream:
stream ::= cmd*;
new_commit ::= 'commit' sp ref_str lf
mark?
- ('author' sp name '<' email '>' when lf)?
- 'committer' sp name '<' email '>' when lf
+ ('author' (sp name)? sp '<' email '>' sp when lf)?
+ 'committer' (sp name)? sp '<' email '>' sp when lf
commit_msg
- ('from' sp (ref_str | hexsha1 | sha1exp_str | idnum) lf)?
- ('merge' sp (ref_str | hexsha1 | sha1exp_str | idnum) lf)*
+ ('from' sp committish lf)?
+ ('merge' sp committish lf)*
file_change*
lf?;
commit_msg ::= data;
file_obm ::= 'M' sp mode sp (hexsha1 | idnum) sp path_str lf;
file_inm ::= 'M' sp mode sp 'inline' sp path_str lf
data;
+ note_obm ::= 'N' sp (hexsha1 | idnum) sp committish lf;
+ note_inm ::= 'N' sp 'inline' sp committish lf
+ data;
new_tag ::= 'tag' sp tag_str lf
- 'from' sp (ref_str | hexsha1 | sha1exp_str | idnum) lf
- ('tagger' sp name '<' email '>' when lf)?
+ 'from' sp committish lf
+ ('tagger' (sp name)? sp '<' email '>' sp when lf)?
tag_msg;
tag_msg ::= data;
reset_branch ::= 'reset' sp ref_str lf
- ('from' sp (ref_str | hexsha1 | sha1exp_str | idnum) lf)?
+ ('from' sp committish lf)?
lf?;
checkpoint ::= 'checkpoint' lf
delim lf;
# note: declen indicates the length of binary_data in bytes.
- # declen does not include the lf preceeding the binary data.
+ # declen does not include the lf preceding the binary data.
#
exact_data ::= 'data' sp declen lf
binary_data;
# stream formatting is: \, " and LF. Otherwise these values
# are UTF8.
#
+ committish ::= (ref_str | hexsha1 | sha1exp_str | idnum);
ref_str ::= ref;
sha1exp_str ::= sha1exp;
tag_str ::= tag;
# always escapes the related input from comment processing.
#
# In case it is not clear, the '#' that starts the comment
- # must be the first character on that the line (an lf have
- # preceeded it).
+ # must be the first character on that line (an lf
+ # preceded it).
#
comment ::= '#' not_lf* lf;
not_lf ::= # Any byte that is not ASCII newline (LF);
#include "refs.h"
#include "csum-file.h"
#include "quote.h"
+#include "exec_cmd.h"
#define PACK_ID_BITS 16
#define MAX_PACK_ID ((1<<PACK_ID_BITS)-1)
struct tree_entry
{
struct tree_content *tree;
- struct atom_str* name;
+ struct atom_str *name;
struct tree_entry_ms
{
uint16_t mode;
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);
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 };
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)
{
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);
static struct branch *new_branch(const char *name)
{
unsigned int hc = hc_str(name, strlen(name)) % branch_table_sz;
- struct branch* b = lookup_branch(name);
+ struct branch *b = lookup_branch(name);
if (b)
die("Invalid attempt to create duplicate branch: %s", name);
/* Generate the fan-out array. */
c = idx;
for (i = 0; i < 256; i++) {
- struct object_entry **next = c;;
+ struct object_entry **next = c;
while (next < last) {
if ((*next)->sha1[0] != i)
break;
static const char *keep_msg = "fast-import";
int keep_fd;
- chmod(pack_data->pack_name, 0444);
- chmod(curr_index_name, 0444);
-
keep_fd = odb_pack_keep(name, sizeof(name), pack_data->sha1);
if (keep_fd < 0)
- die("cannot create keep file");
+ die_errno("cannot create keep file");
write_or_die(keep_fd, keep_msg, strlen(keep_msg));
if (close(keep_fd))
- die("failed to write keep file");
+ die_errno("failed to write keep file");
snprintf(name, sizeof(name), "%s/pack/pack-%s.pack",
get_object_directory(), sha1_to_hex(pack_data->sha1));
struct packed_git *p = all_packs[k];
snprintf(name, sizeof(name), "%s/pack/pack-%s.keep",
get_object_directory(), sha1_to_hex(p->sha1));
- unlink(name);
+ unlink_or_warn(name);
}
}
close(pack_data->pack_fd);
idx_name = keep_pack(create_index());
- /* Register the packfile with core git's machinary. */
+ /* Register the packfile with core git's machinery. */
new_p = add_packed_git(idx_name, strlen(idx_name), 1);
if (!new_p)
die("core git rejected index %s", idx_name);
}
else {
close(old_p->pack_fd);
- unlink(old_p->pack_name);
+ unlink_or_warn(old_p->pack_name);
}
free(old_p);
git_SHA_CTX c;
z_stream s;
- hdrlen = sprintf((char*)hdr,"%s %lu", typename(type),
+ hdrlen = sprintf((char *)hdr,"%s %lu", typename(type),
(unsigned long)dat->len) + 1;
git_SHA1_Init(&c);
git_SHA1_Update(&c, hdr, hdrlen);
static void load_tree(struct tree_entry *root)
{
- unsigned char* sha1 = root->versions[1].sha1;
+ unsigned char *sha1 = root->versions[1].sha1;
struct object_entry *myoe;
struct tree_content *t;
unsigned long size;
e->versions[0].mode = e->versions[1].mode;
e->name = to_atom(c, strlen(c));
c += e->name->str_len + 1;
- hashcpy(e->versions[0].sha1, (unsigned char*)c);
- hashcpy(e->versions[1].sha1, (unsigned char*)c);
+ hashcpy(e->versions[0].sha1, (unsigned char *)c);
+ hashcpy(e->versions[1].sha1, (unsigned char *)c);
c += 20;
}
free(buf);
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;
}
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;
}
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;
}
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->offset = 1; /* just not zero! */
+ }
+ insert_mark(mark, e);
+ }
+ fclose(f);
+}
+
+
static int read_next_command(void)
{
static int stdin_eof = 0;
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;
static int validate_raw_date(const char *src, char *result, int maxlen)
{
const char *orig_src = src;
- char *endp, sign;
- unsigned long date;
+ char *endp;
+ unsigned long num;
errno = 0;
- date = strtoul(src, &endp, 10);
+ num = strtoul(src, &endp, 10);
+ /* NEEDSWORK: perhaps check for reasonable values? */
if (errno || endp == src || *endp != ' ')
return -1;
src = endp + 1;
if (*src != '-' && *src != '+')
return -1;
- sign = *src;
- date = strtoul(src + 1, &endp, 10);
- if (errno || endp == src || *endp || (endp - orig_src) >= maxlen)
+ num = strtoul(src + 1, &endp, 10);
+ if (errno || endp == src + 1 || *endp || (endp - orig_src) >= maxlen ||
+ 1400 < num)
return -1;
strcpy(result, orig_src);
leaf.tree);
}
+static void note_change_n(struct branch *b)
+{
+ 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];
+ uint16_t inline_data = 0;
+
+ /* <dataref> or 'inline' */
+ if (*p == ':') {
+ char *x;
+ oe = find_mark(strtoumax(p + 1, &x, 10));
+ hashcpy(sha1, oe->sha1);
+ p = x;
+ } else if (!prefixcmp(p, "inline")) {
+ inline_data = 1;
+ p += 6;
+ } else {
+ if (get_sha1_hex(p, sha1))
+ die("Invalid SHA1: %s", command_buf.buf);
+ oe = find_object(sha1);
+ p += 40;
+ }
+ if (*p++ != ' ')
+ die("Missing space after SHA1: %s", command_buf.buf);
+
+ /* <committish> */
+ s = lookup_branch(p);
+ if (s) {
+ hashcpy(commit_sha1, s->sha1);
+ } else if (*p == ':') {
+ uintmax_t commit_mark = strtoumax(p + 1, NULL, 10);
+ 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);
+ } else if (!get_sha1(p, commit_sha1)) {
+ unsigned long size;
+ char *buf = read_object_with_reference(commit_sha1,
+ commit_type, &size, commit_sha1);
+ if (!buf || size < 46)
+ die("Not a valid commit: %s", p);
+ free(buf);
+ } else
+ die("Invalid ref name or SHA1 expression: %s", p);
+
+ if (inline_data) {
+ static struct strbuf buf = STRBUF_INIT;
+
+ if (p != uq.buf) {
+ strbuf_addstr(&uq, p);
+ p = uq.buf;
+ }
+ read_next_command();
+ parse_data(&buf);
+ store_object(OBJ_BLOB, &buf, &last_blob, sha1, 0);
+ } else if (oe) {
+ if (oe->type != OBJ_BLOB)
+ die("Not a blob (actually a %s): %s",
+ typename(oe->type), command_buf.buf);
+ } else {
+ enum object_type type = sha1_object_info(sha1, NULL);
+ if (type < 0)
+ die("Blob not found: %s", command_buf.buf);
+ if (type != OBJ_BLOB)
+ die("Not a blob (actually a %s): %s",
+ typename(type), command_buf.buf);
+ }
+
+ tree_content_set(&b->branch_tree, sha1_to_hex(commit_sha1), sha1,
+ S_IFREG | 0644, NULL);
+}
+
static void file_change_deleteall(struct branch *b)
{
release_tree_content_recursive(b->branch_tree.tree);
file_change_cr(b, 1);
else if (!prefixcmp(command_buf.buf, "C "))
file_change_cr(b, 0);
+ else if (!prefixcmp(command_buf.buf, "N "))
+ note_change_n(b);
else if (!strcmp("deleteall", command_buf.buf))
file_change_deleteall(b);
else {
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("cannot read %s: %s", input_file, strerror(errno));
- 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! */
- }
- insert_mark(mark, e);
+ 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();
}
- fclose(f);
+
+ 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_max_pack_size(const char *packsize)
+{
+ max_packsize = strtoumax(packsize, NULL, 0) * 1024 * 1024;
+}
+
+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=")) {
+ option_max_pack_size(option + 14);
+ } 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;
+ }
+
+ 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)
static const char fast_import_usage[] =
"git fast-import [--date-format=f] [--max-pack-size=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]);
+
+ if (argc == 2 && !strcmp(argv[1], "-h"))
+ usage(fast_import_usage);
setup_git_directory();
git_config(git_pack_config, NULL);
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, "--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("Cannot open %s: %s", a + 20, strerror(errno));
- } 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++)
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();