#include "archive.h"
#include "streaming.h"
#include "utf8.h"
+#include "userdiff.h"
+#include "xdiff-interface.h"
static int zip_date;
static int zip_time;
void *buffer;
int result;
- memset(&stream, 0, sizeof(stream));
git_deflate_init_raw(&stream, compression_level);
maxsize = git_deflate_bound(&stream, size);
buffer = xmalloc(maxsize);
}
}
+static int entry_is_binary(const char *path, const void *buffer, size_t size)
+{
+ struct userdiff_driver *driver = userdiff_find_by_path(path);
+ if (!driver)
+ driver = userdiff_find_by_name("default");
+ if (driver->binary != -1)
+ return driver->binary;
+ return buffer_is_binary(buffer, size);
+}
+
#define STREAM_BUFFER_SIZE (1024 * 16)
static int write_zip_entry(struct archiver_args *args,
struct git_istream *stream = NULL;
unsigned long flags = 0;
unsigned long size;
+ int is_binary = -1;
+ const char *path_without_prefix = path + args->baselen;
crc = crc32(0, NULL, 0);
return error("cannot read %s",
sha1_to_hex(sha1));
crc = crc32(crc, buffer, size);
+ is_binary = entry_is_binary(path_without_prefix,
+ buffer, size);
out = buffer;
}
compressed_size = (method == 0) ? size : 0;
copy_le16(dirent.extra_length, ZIP_EXTRA_MTIME_SIZE);
copy_le16(dirent.comment_length, 0);
copy_le16(dirent.disk, 0);
- copy_le16(dirent.attr1, 0);
copy_le32(dirent.attr2, attr2);
copy_le32(dirent.offset, zip_offset);
if (readlen <= 0)
break;
crc = crc32(crc, buf, readlen);
+ if (is_binary == -1)
+ is_binary = entry_is_binary(path_without_prefix,
+ buf, readlen);
write_or_die(1, buf, readlen);
}
close_istream(stream);
size_t out_len;
unsigned char compressed[STREAM_BUFFER_SIZE * 2];
- memset(&zstream, 0, sizeof(zstream));
git_deflate_init_raw(&zstream, args->compression_level);
compressed_size = 0;
if (readlen <= 0)
break;
crc = crc32(crc, buf, readlen);
+ if (is_binary == -1)
+ is_binary = entry_is_binary(path_without_prefix,
+ buf, readlen);
zstream.next_in = buf;
zstream.avail_in = readlen;
free(deflated);
free(buffer);
+ copy_le16(dirent.attr1, !is_binary);
+
memcpy(zip_dir + zip_dir_offset, &dirent, ZIP_DIR_HEADER_SIZE);
zip_dir_offset += ZIP_DIR_HEADER_SIZE;
memcpy(zip_dir + zip_dir_offset, path, pathlen);
copy_le16(trailer.entries, zip_dir_entries);
copy_le32(trailer.size, zip_dir_offset);
copy_le32(trailer.offset, zip_offset);
- copy_le16(trailer.comment_length, sha1 ? 40 : 0);
+ copy_le16(trailer.comment_length, sha1 ? GIT_SHA1_HEXSZ : 0);
write_or_die(1, zip_dir, zip_dir_offset);
write_or_die(1, &trailer, ZIP_DIR_TRAILER_SIZE);
if (sha1)
- write_or_die(1, sha1_to_hex(sha1), 40);
+ write_or_die(1, sha1_to_hex(sha1), GIT_SHA1_HEXSZ);
}
static void dos_time(time_t *time, int *dos_date, int *dos_time)
#include "dir.h"
static char const * const archive_usage[] = {
- N_("git archive [
options] <tree-ish> [<path>...]"),
+ N_("git archive [
<options>] <tree-ish> [<path>...]"),
N_("git archive --list"),
- N_("git archive --remote <repo> [--exec <cmd>] [
options] <tree-ish> [<path>...]"),
+ N_("git archive --remote <repo> [--exec <cmd>] [
<options>] <tree-ish> [<path>...]"),
N_("git archive --remote <repo> [--exec <cmd>] --list"),
NULL
};
struct directory {
struct directory *up;
- unsigned char sha1[20];
+ struct object_id oid;
int baselen, len;
unsigned mode;
int stage;
d->stage = stage;
c->bottom = d;
d->len = sprintf(d->path, "%.*s%s/", (int)base->len, base->buf, filename);
- hashcpy(d->sha1, sha1);
+ hashcpy(d->oid.hash, sha1);
}
static int write_directory(struct archiver_context *c)
d->path[d->len - 1] = '\0'; /* no trailing slash */
ret =
write_directory(c) ||
- write_archive_entry(d->sha1, d->path, d->baselen,
+ write_archive_entry(d->oid.hash, d->path, d->baselen,
d->path + d->baselen, d->mode,
d->stage, c) != READ_TREE_RECURSIVE;
free(d);
time_t archive_time;
struct tree *tree;
const struct commit *commit;
- unsigned char sha1[20];
+ struct object_id oid;
/* Remotes are only allowed to fetch actual refs */
if (remote && !remote_allow_unreachable) {
const char *colon = strchrnul(name, ':');
int refnamelen = colon - name;
- if (!dwim_ref(name, refnamelen, sha1, &ref))
+ if (!dwim_ref(name, refnamelen, oid.hash, &ref))
die("no such ref: %.*s", refnamelen, name);
free(ref);
}
- if (get_sha1(name, sha1))
+ if (get_sha1(name, oid.hash))
die("Not a valid object name");
- commit = lookup_commit_reference_gently(sha1, 1);
+ commit = lookup_commit_reference_gently(oid.hash, 1);
if (commit) {
commit_sha1 = commit->object.sha1;
archive_time = commit->date;
archive_time = time(NULL);
}
- tree = parse_tree_indirect(sha1);
+ tree = parse_tree_indirect(oid.hash);
if (tree == NULL)
die("not a tree object");
if (prefix) {
- unsigned char tree_sha1[20];
+ struct object_id tree_oid;
unsigned int mode;
int err;
err = get_tree_entry(tree->object.sha1, prefix,
- tree_sha1, &mode);
+ tree_oid.hash, &mode);
if (err || !S_ISDIR(mode))
die("current working directory is untracked");
- tree = parse_tree_indirect(tree_sha1);
+ tree = parse_tree_indirect(tree_oid.hash);
}
ar_args->tree = tree;
ar_args->commit_sha1 = commit_sha1;
static int allow_overlap;
static int no_add;
static int threeway;
+static int unsafe_paths;
static const char *fake_ancestor;
static int line_termination = '\n';
static unsigned int p_context = UINT_MAX;
static const char * const apply_usage[] = {
- N_("git apply [
options] [<patch>...]"),
+ N_("git apply [
<options>] [<patch>...]"),
NULL
};
struct patch *next;
/* three-way fallback result */
- unsigned char threeway_stage[3][20];
+ struct object_id threeway_stage[3];
};
static void free_fragment_list(struct fragment *list)
if (!deleted && !added)
leading++;
trailing++;
+ if (!apply_in_reverse &&
+ ws_error_action == correct_ws_error)
+ check_whitespace(line, len, patch->ws_rule);
break;
case '-':
if (apply_in_reverse &&
default:
if (apply_verbosely)
error(_("invalid start of line: '%c'"), first);
- return -1;
+ applied_pos = -1;
+ goto out;
}
if (added_blank_line) {
if (!new_blank_lines_at_end)
(int)(old - oldlines), oldlines);
}
+out:
free(oldlines);
strbuf_release(&newlines);
free(preimage.line_allocated);
const char *name,
unsigned expected_mode)
{
- if (cached) {
+ if (cached || check_index) {
if (read_file_or_gitlink(ce, buf))
return error(_("read of %s failed"), name);
} else if (name) {
return read_file_or_gitlink(ce, buf);
else
return SUBMODULE_PATCH_WITHOUT_INDEX;
+ } else if (has_symlink_leading_path(name, strlen(name))) {
+ return error(_("reading from '%s' beyond a symbolic link"), name);
} else {
if (read_old_data(st, name, buf))
return error(_("read of %s failed"), name);
if (status) {
patch->conflicted_threeway = 1;
if (patch->is_new)
- hashclr(patch->threeway_stage[0]);
+ oidclr(&patch->threeway_stage[0]);
else
- hashcpy(patch->threeway_stage[0], pre_sha1);
- hashcpy(patch->threeway_stage[1], our_sha1);
- hashcpy(patch->threeway_stage[2], post_sha1);
+ hashcpy(patch->threeway_stage[0].hash, pre_sha1);
+ hashcpy(patch->threeway_stage[1].hash, our_sha1);
+ hashcpy(patch->threeway_stage[2].hash, post_sha1);
fprintf(stderr, "Applied patch to '%s' with conflicts.\n", patch->new_name);
} else {
fprintf(stderr, "Applied patch to '%s' cleanly.\n", patch->new_name);
return 0;
}
+/*
+ * We need to keep track of how symlinks in the preimage are
+ * manipulated by the patches. A patch to add a/b/c where a/b
+ * is a symlink should not be allowed to affect the directory
+ * the symlink points at, but if the same patch removes a/b,
+ * it is perfectly fine, as the patch removes a/b to make room
+ * to create a directory a/b so that a/b/c can be created.
+ */
+static struct string_list symlink_changes;
+#define SYMLINK_GOES_AWAY 01
+#define SYMLINK_IN_RESULT 02
+
+static uintptr_t register_symlink_changes(const char *path, uintptr_t what)
+{
+ struct string_list_item *ent;
+
+ ent = string_list_lookup(&symlink_changes, path);
+ if (!ent) {
+ ent = string_list_insert(&symlink_changes, path);
+ ent->util = (void *)0;
+ }
+ ent->util = (void *)(what | ((uintptr_t)ent->util));
+ return (uintptr_t)ent->util;
+}
+
+static uintptr_t check_symlink_changes(const char *path)
+{
+ struct string_list_item *ent;
+
+ ent = string_list_lookup(&symlink_changes, path);
+ if (!ent)
+ return 0;
+ return (uintptr_t)ent->util;
+}
+
+static void prepare_symlink_changes(struct patch *patch)
+{
+ for ( ; patch; patch = patch->next) {
+ if ((patch->old_name && S_ISLNK(patch->old_mode)) &&
+ (patch->is_rename || patch->is_delete))
+ /* the symlink at patch->old_name is removed */
+ register_symlink_changes(patch->old_name, SYMLINK_GOES_AWAY);
+
+ if (patch->new_name && S_ISLNK(patch->new_mode))
+ /* the symlink at patch->new_name is created or remains */
+ register_symlink_changes(patch->new_name, SYMLINK_IN_RESULT);
+ }
+}
+
+static int path_is_beyond_symlink_1(struct strbuf *name)
+{
+ do {
+ unsigned int change;
+
+ while (--name->len && name->buf[name->len] != '/')
+ ; /* scan backwards */
+ if (!name->len)
+ break;
+ name->buf[name->len] = '\0';
+ change = check_symlink_changes(name->buf);
+ if (change & SYMLINK_IN_RESULT)
+ return 1;
+ if (change & SYMLINK_GOES_AWAY)
+ /*
+ * This cannot be "return 0", because we may
+ * see a new one created at a higher level.
+ */
+ continue;
+
+ /* otherwise, check the preimage */
+ if (check_index) {
+ struct cache_entry *ce;
+
+ ce = cache_file_exists(name->buf, name->len, ignore_case);
+ if (ce && S_ISLNK(ce->ce_mode))
+ return 1;
+ } else {
+ struct stat st;
+ if (!lstat(name->buf, &st) && S_ISLNK(st.st_mode))
+ return 1;
+ }
+ } while (1);
+ return 0;
+}
+
+static int path_is_beyond_symlink(const char *name_)
+{
+ int ret;
+ struct strbuf name = STRBUF_INIT;
+
+ assert(*name_ != '\0');
+ strbuf_addstr(&name, name_);
+ ret = path_is_beyond_symlink_1(&name);
+ strbuf_release(&name);
+
+ return ret;
+}
+
+static void die_on_unsafe_path(struct patch *patch)
+{
+ const char *old_name = NULL;
+ const char *new_name = NULL;
+ if (patch->is_delete)
+ old_name = patch->old_name;
+ else if (!patch->is_new && !patch->is_copy)
+ old_name = patch->old_name;
+ if (!patch->is_delete)
+ new_name = patch->new_name;
+
+ if (old_name && !verify_path(old_name))
+ die(_("invalid path '%s'"), old_name);
+ if (new_name && !verify_path(new_name))
+ die(_("invalid path '%s'"), new_name);
+}
+
/*
* Check and apply the patch in-core; leave the result in patch->result
* for the caller to write it out to the final destination.
}
}
+ if (!unsafe_paths)
+ die_on_unsafe_path(patch);
+
+ /*
+ * An attempt to read from or delete a path that is beyond a
+ * symbolic link will be prevented by load_patch_target() that
+ * is called at the beginning of apply_data() so we do not
+ * have to worry about a patch marked with "is_delete" bit
+ * here. We however need to make sure that the patch result
+ * is not deposited to a path that is beyond a symbolic link
+ * here.
+ */
+ if (!patch->is_delete && path_is_beyond_symlink(patch->new_name))
+ return error(_("affected file '%s' is beyond a symbolic link"),
+ patch->new_name);
+
if (apply_data(patch, &st, ce) < 0)
return error(_("%s: patch does not apply"), name);
patch->rejected = 0;
{
int err = 0;
+ prepare_symlink_changes(patch);
prepare_fn_table(patch);
while (patch) {
if (apply_verbosely)
remove_file_from_cache(patch->new_name);
for (stage = 1; stage < 4; stage++) {
- if (is_null_sha1(patch->threeway_stage[stage - 1]))
+ if (is_null_oid(&patch->threeway_stage[stage - 1]))
continue;
ce = xcalloc(1, ce_size);
memcpy(ce->name, patch->new_name, namelen);
ce->ce_mode = create_ce_mode(mode);
ce->ce_flags = create_ce_flags(stage);
ce->ce_namelen = namelen;
- hashcpy(ce->sha1, patch->threeway_stage[stage - 1]);
+ hashcpy(ce->sha1, patch->threeway_stage[stage - 1].hash);
if (add_cache_entry(ce, ADD_CACHE_OK_TO_ADD) < 0)
die(_("unable to add cache entry for %s"), patch->new_name);
}
N_("make sure the patch is applicable to the current index")),
OPT_BOOL(0, "cached", &cached,
N_("apply a patch without touching the working tree")),
+ OPT_BOOL(0, "unsafe-paths", &unsafe_paths,
+ N_("accept a patch that touches outside the working area")),
OPT_BOOL(0, "apply", &force_apply,
N_("also apply the patch (use with --stat/--summary/--check)")),
OPT_BOOL('3', "3way", &threeway,
die(_("--cached outside a repository"));
check_index = 1;
}
+ if (check_index)
+ unsafe_paths = 0;
+
for (i = 0; i < argc; i++) {
const char *arg = argv[i];
int fd;
static void finish_bulk_checkin(struct bulk_checkin_state *state)
{
- unsigned char sha1[20];
+ struct object_id oid;
struct strbuf packname = STRBUF_INIT;
int i;
unlink(state->pack_tmp_name);
goto clear_exit;
} else if (state->nr_written == 1) {
- sha1close(state->f, sha1, CSUM_FSYNC);
+ sha1close(state->f, oid.hash, CSUM_FSYNC);
} else {
- int fd = sha1close(state->f, sha1, 0);
- fixup_pack_header_footer(fd, sha1, state->pack_tmp_name,
- state->nr_written, sha1,
+ int fd = sha1close(state->f, oid.hash, 0);
+ fixup_pack_header_footer(fd, oid.hash, state->pack_tmp_name,
+ state->nr_written, oid.hash,
state->offset);
close(fd);
}
strbuf_addf(&packname, "%s/pack/pack-", get_object_directory());
finish_tmp_packfile(&packname, state->pack_tmp_name,
state->written, state->nr_written,
- &state->pack_idx_opts, sha1);
+ &state->pack_idx_opts, oid.hash);
for (i = 0; i < state->nr_written; i++)
free(state->written[i]);
int write_object = (flags & HASH_WRITE_OBJECT);
off_t offset = 0;
- memset(&s, 0, sizeof(s));
git_deflate_init(&s, pack_compression_level);
hdrlen = encode_in_pack_object_header(type, size, obuf);
int git_deflate(git_zstream *, int flush);
unsigned long git_deflate_bound(git_zstream *, unsigned long);
+ /* The length in bytes and in hex digits of an object name (SHA-1 value). */
+ #define GIT_SHA1_RAWSZ 20
+ #define GIT_SHA1_HEXSZ (2 * GIT_SHA1_RAWSZ)
+
+ struct object_id {
+ unsigned char hash[GIT_SHA1_RAWSZ];
+ };
+
#if defined(DT_UNKNOWN) && !defined(NO_D_TYPE_IN_DIRENT)
#define DTYPE(de) ((de)->d_type)
#else
extern int hold_locked_index(struct lock_file *, int);
extern void set_alternate_index_output(const char *);
-extern int delete_ref(const char *, const unsigned char *sha1, int delopt);
+extern int delete_ref(const char *, const unsigned char *sha1, unsigned int flags);
/* Environment bits from configuration mechanism */
extern int trust_executable_bit;
extern int protect_hfs;
extern int protect_ntfs;
+/*
+ * Include broken refs in all ref iterations, which will
+ * generally choke dangerous operations rather than letting
+ * them silently proceed without taking the broken ref into
+ * account.
+ */
+extern int ref_paranoia;
+
/*
* The character that begins a commented line in user-editable file
* that is subject to stripspace.
extern char *sha1_pack_index_name(const unsigned char *sha1);
extern const char *find_unique_abbrev(const unsigned char *sha1, int);
- extern const unsigned char null_sha1[20];
+ extern const unsigned char null_sha1[GIT_SHA1_RAWSZ];
static inline int hashcmp(const unsigned char *sha1, const unsigned char *sha2)
{
int i;
- for (i = 0; i < 20; i++, sha1++, sha2++) {
+ for (i = 0; i < GIT_SHA1_RAWSZ; i++, sha1++, sha2++) {
if (*sha1 != *sha2)
return *sha1 - *sha2;
}
return 0;
}
+ static inline int oidcmp(const struct object_id *oid1, const struct object_id *oid2)
+ {
+ return hashcmp(oid1->hash, oid2->hash);
+ }
+
static inline int is_null_sha1(const unsigned char *sha1)
{
return !hashcmp(sha1, null_sha1);
}
+ static inline int is_null_oid(const struct object_id *oid)
+ {
+ return !hashcmp(oid->hash, null_sha1);
+ }
+
static inline void hashcpy(unsigned char *sha_dst, const unsigned char *sha_src)
{
- memcpy(sha_dst, sha_src, 20);
+ memcpy(sha_dst, sha_src, GIT_SHA1_RAWSZ);
}
+
+ static inline void oidcpy(struct object_id *dst, const struct object_id *src)
+ {
+ hashcpy(dst->hash, src->hash);
+ }
+
static inline void hashclr(unsigned char *hash)
{
- memset(hash, 0, 20);
+ memset(hash, 0, GIT_SHA1_RAWSZ);
}
+ static inline void oidclr(struct object_id *oid)
+ {
+ hashclr(oid->hash);
+ }
+
+
#define EMPTY_TREE_SHA1_HEX \
"4b825dc642cb6eb9a060e54bf8d69288fbee4904"
#define EMPTY_TREE_SHA1_BIN_LITERAL \
* null-terminated string.
*/
extern int get_sha1_hex(const char *hex, unsigned char *sha1);
+ extern int get_oid_hex(const char *hex, struct object_id *sha1);
extern char *sha1_to_hex(const unsigned char *sha1); /* static buffer result! */
+ extern char *oid_to_hex(const struct object_id *oid); /* same static buffer as sha1_to_hex */
extern int read_ref_full(const char *refname, int resolve_flags,
unsigned char *sha1, int *flags);
extern int read_ref(const char *refname, unsigned char *sha1);
#define ws_tab_width(rule) ((rule) & WS_TAB_WIDTH_MASK)
/* ls-files */
-int report_path_error(const char *ps_matched, const struct pathspec *pathspec, const char *prefix);
void overlay_tree_on_cache(const char *tree_name, const char *prefix);
char *alias_lookup(const char *alias);
void sort_in_topological_order(struct commit_list **, enum rev_sort_order);
struct commit_graft {
- unsigned char sha1[20];
+ struct object_id oid;
int nr_parent; /* < 0 if shallow commit */
- unsigned char parent[FLEX_ARRAY][20]; /* more */
+ struct object_id parent[FLEX_ARRAY]; /* more */
};
typedef int (*each_commit_graft_fn)(const struct commit_graft *, void *);
extern int is_repository_shallow(void);
extern struct commit_list *get_shallow_commits(struct object_array *heads,
int depth, int shallow_flag, int not_shallow_flag);
-extern void check_shallow_file_for_update(void);
extern void set_alternate_shallow_file(const char *path, int override);
extern int write_shallow_commits(struct strbuf *out, int use_pack_protocol,
const struct sha1_array *extra);
struct cache_entry *ce = active_cache[i];
int changed;
unsigned dirty_submodule = 0;
+ const unsigned char *old_sha1, *new_sha1;
if (diff_can_quit_early(&revs->diffopt))
break;
dpath->next = NULL;
memcpy(dpath->path, ce->name, path_len);
dpath->path[path_len] = '\0';
- hashclr(dpath->sha1);
+ oidclr(&dpath->oid);
memset(&(dpath->parent[0]), 0,
sizeof(struct combine_diff_parent)*5);
if (2 <= stage) {
int mode = nce->ce_mode;
num_compare_stages++;
- hashcpy(dpath->parent[stage-2].sha1, nce->sha1);
+ hashcpy(dpath->parent[stage-2].oid.hash, nce->sha1);
dpath->parent[stage-2].mode = ce_mode_from_stat(nce, mode);
dpath->parent[stage-2].status =
DIFF_STATUS_MODIFIED;
continue;
}
oldmode = ce->ce_mode;
+ old_sha1 = ce->sha1;
+ new_sha1 = changed ? null_sha1 : ce->sha1;
diff_change(&revs->diffopt, oldmode, newmode,
- ce->sha1, (changed ? null_sha1 : ce->sha1),
- !is_null_sha1(ce->sha1), (changed ? 0 : !is_null_sha1(ce->sha1)),
+ old_sha1, new_sha1,
+ !is_null_sha1(old_sha1),
+ !is_null_sha1(new_sha1),
ce->name, 0, dirty_submodule);
}
memcpy(p->path, new->name, pathlen);
p->path[pathlen] = 0;
p->mode = mode;
- hashclr(p->sha1);
+ oidclr(&p->oid);
memset(p->parent, 0, 2 * sizeof(struct combine_diff_parent));
p->parent[0].status = DIFF_STATUS_MODIFIED;
p->parent[0].mode = new->ce_mode;
- hashcpy(p->parent[0].sha1, new->sha1);
+ hashcpy(p->parent[0].oid.hash, new->sha1);
p->parent[1].status = DIFF_STATUS_MODIFIED;
p->parent[1].mode = old->ce_mode;
- hashcpy(p->parent[1].sha1, old->sha1);
+ hashcpy(p->parent[1].oid.hash, old->sha1);
show_combined_diff(p, 2, revs->dense_combined_merges, revs);
free(p);
return 0;
static int add_graft_decoration(const struct commit_graft *graft, void *cb_data)
{
- struct commit *commit = lookup_commit(graft->sha1);
+ struct commit *commit = lookup_commit(graft->oid.hash);
if (!commit)
return 0;
add_name_decoration(DECORATION_GRAFTED, "grafted", &commit->object);
}
}
+/*
+ * Do we have HEAD in the output, and also the branch it points at?
+ * If so, find that decoration entry for that current branch.
+ */
+static const struct name_decoration *current_pointed_by_HEAD(const struct name_decoration *decoration)
+{
+ const struct name_decoration *list, *head = NULL;
+ const char *branch_name = NULL;
+ unsigned char unused[20];
+ int rru_flags;
+
+ /* First find HEAD */
+ for (list = decoration; list; list = list->next)
+ if (list->type == DECORATION_REF_HEAD) {
+ head = list;
+ break;
+ }
+ if (!head)
+ return NULL;
+
+ /* Now resolve and find the matching current branch */
+ branch_name = resolve_ref_unsafe("HEAD", 0, unused, &rru_flags);
+ if (!(rru_flags & REF_ISSYMREF))
+ return NULL;
+ if (!skip_prefix(branch_name, "refs/heads/", &branch_name))
+ return NULL;
+
+ /* OK, do we have that ref in the list? */
+ for (list = decoration; list; list = list->next)
+ if ((list->type == DECORATION_REF_LOCAL) &&
+ !strcmp(branch_name, list->name)) {
+ return list;
+ }
+
+ return NULL;
+}
+
/*
* The caller makes sure there is no funny color before calling.
* format_decorations_extended makes sure the same after return.
const char *suffix)
{
const struct name_decoration *decoration;
+ const struct name_decoration *current_and_HEAD;
const char *color_commit =
diff_get_color(use_color, DIFF_COMMIT);
const char *color_reset =
decoration = get_name_decoration(&commit->object);
if (!decoration)
return;
+
+ current_and_HEAD = current_pointed_by_HEAD(decoration);
while (decoration) {
- strbuf_addstr(sb, color_commit);
- strbuf_addstr(sb, prefix);
- strbuf_addstr(sb, decorate_get_color(use_color, decoration->type));
- if (decoration->type == DECORATION_REF_TAG)
- strbuf_addstr(sb, "tag: ");
- strbuf_addstr(sb, decoration->name);
- strbuf_addstr(sb, color_reset);
- prefix = separator;
+ /*
+ * When both current and HEAD are there, only
+ * show HEAD->current where HEAD would have
+ * appeared, skipping the entry for current.
+ */
+ if (decoration != current_and_HEAD) {
+ strbuf_addstr(sb, color_commit);
+ strbuf_addstr(sb, prefix);
+ strbuf_addstr(sb, color_reset);
+ strbuf_addstr(sb, decorate_get_color(use_color, decoration->type));
+ if (decoration->type == DECORATION_REF_TAG)
+ strbuf_addstr(sb, "tag: ");
+
+ strbuf_addstr(sb, decoration->name);
+
+ if (current_and_HEAD &&
+ decoration->type == DECORATION_REF_HEAD) {
+ strbuf_addstr(sb, color_reset);
+ strbuf_addstr(sb, color_commit);
+ strbuf_addstr(sb, " -> ");
+ strbuf_addstr(sb, color_reset);
+ strbuf_addstr(sb, decorate_get_color(use_color, current_and_HEAD->type));
+ strbuf_addstr(sb, current_and_HEAD->name);
+ }
+ strbuf_addstr(sb, color_reset);
+
+ prefix = separator;
+ }
decoration = decoration->next;
}
strbuf_addstr(sb, color_commit);
{
struct strbuf *sb = cb;
if (graft->nr_parent == -1)
- packet_buf_write(sb, "shallow %s\n", sha1_to_hex(graft->sha1));
+ packet_buf_write(sb, "shallow %s\n", oid_to_hex(&graft->oid));
return 0;
}
for_each_commit_graft(advertise_shallow_grafts_cb, sb);
}
-static int ref_update_to_be_sent(const struct ref *ref, const struct send_pack_args *args)
+#define CHECK_REF_NO_PUSH -1
+#define CHECK_REF_STATUS_REJECTED -2
+#define CHECK_REF_UPTODATE -3
+static int check_to_send_update(const struct ref *ref, const struct send_pack_args *args)
{
if (!ref->peer_ref && !args->send_mirror)
- return 0;
+ return CHECK_REF_NO_PUSH;
/* Check for statuses set by set_ref_status_for_push() */
switch (ref->status) {
case REF_STATUS_REJECT_NEEDS_FORCE:
case REF_STATUS_REJECT_STALE:
case REF_STATUS_REJECT_NODELETE:
+ return CHECK_REF_STATUS_REJECTED;
case REF_STATUS_UPTODATE:
- return 0;
+ return CHECK_REF_UPTODATE;
default:
- return 1;
+ return 0;
}
}
strbuf_addstr(&cert, "\n");
for (ref = remote_refs; ref; ref = ref->next) {
- if (!ref_update_to_be_sent(ref, args))
+ if (check_to_send_update(ref, args) < 0)
continue;
update_seen = 1;
strbuf_addf(&cert, "%s %s %s\n",
return update_seen;
}
+
+static int atomic_push_failure(struct send_pack_args *args,
+ struct ref *remote_refs,
+ struct ref *failing_ref)
+{
+ struct ref *ref;
+ /* Mark other refs as failed */
+ for (ref = remote_refs; ref; ref = ref->next) {
+ if (!ref->peer_ref && !args->send_mirror)
+ continue;
+
+ switch (ref->status) {
+ case REF_STATUS_EXPECTING_REPORT:
+ ref->status = REF_STATUS_ATOMIC_PUSH_FAILED;
+ continue;
+ default:
+ break; /* do nothing */
+ }
+ }
+ return error("atomic push failed for ref %s. status: %d\n",
+ failing_ref->name, failing_ref->status);
+}
+
+#define NONCE_LEN_LIMIT 256
+
+static void reject_invalid_nonce(const char *nonce, int len)
+{
+ int i = 0;
+
+ if (NONCE_LEN_LIMIT <= len)
+ die("the receiving end asked to sign an invalid nonce <%.*s>",
+ len, nonce);
+
+ for (i = 0; i < len; i++) {
+ int ch = nonce[i] & 0xFF;
+ if (isalnum(ch) ||
+ ch == '-' || ch == '.' ||
+ ch == '/' || ch == '+' ||
+ ch == '=' || ch == '_')
+ continue;
+ die("the receiving end asked to sign an invalid nonce <%.*s>",
+ len, nonce);
+ }
+}
+
int send_pack(struct send_pack_args *args,
int fd[], struct child_process *conn,
struct ref *remote_refs,
int use_sideband = 0;
int quiet_supported = 0;
int agent_supported = 0;
+ int use_atomic = 0;
+ int atomic_supported = 0;
unsigned cmds_sent = 0;
int ret;
struct async demux;
agent_supported = 1;
if (server_supports("no-thin"))
args->use_thin_pack = 0;
+ if (server_supports("atomic"))
+ atomic_supported = 1;
if (args->push_cert) {
int len;
push_cert_nonce = server_feature_value("push-cert", &len);
if (!push_cert_nonce)
die(_("the receiving end does not support --signed push"));
+ reject_invalid_nonce(push_cert_nonce, len);
push_cert_nonce = xmemdupz(push_cert_nonce, len);
}
"Perhaps you should specify a branch such as 'master'.\n");
return 0;
}
+ if (args->atomic && !atomic_supported)
+ die(_("the receiving end does not support --atomic push"));
+
+ use_atomic = atomic_supported && args->atomic;
if (status_report)
strbuf_addstr(&cap_buf, " report-status");
strbuf_addstr(&cap_buf, " side-band-64k");
if (quiet_supported && (args->quiet || !args->progress))
strbuf_addstr(&cap_buf, " quiet");
+ if (use_atomic)
+ strbuf_addstr(&cap_buf, " atomic");
if (agent_supported)
strbuf_addf(&cap_buf, " agent=%s", git_user_agent_sanitized());
* the pack data.
*/
for (ref = remote_refs; ref; ref = ref->next) {
- if (!ref_update_to_be_sent(ref, args))
+ switch (check_to_send_update(ref, args)) {
+ case 0: /* no error */
+ break;
+ case CHECK_REF_STATUS_REJECTED:
+ /*
+ * When we know the server would reject a ref update if
+ * we were to send it and we're trying to send the refs
+ * atomically, abort the whole operation.
+ */
+ if (use_atomic)
+ return atomic_push_failure(args, remote_refs, ref);
+ /* Fallthrough for non atomic case. */
+ default:
continue;
-
+ }
if (!ref->deletion)
need_pack_data = 1;
if (args->dry_run || args->push_cert)
continue;
- if (!ref_update_to_be_sent(ref, args))
+ if (check_to_send_update(ref, args) < 0)
continue;
old_hex = sha1_to_hex(ref->old_sha1);
xmalloc(sizeof(struct commit_graft));
struct commit *commit = lookup_commit(sha1);
- hashcpy(graft->sha1, sha1);
+ hashcpy(graft->oid.hash, sha1);
graft->nr_parent = -1;
if (commit && commit->object.parsed)
commit->parents = NULL;
return result;
}
-void check_shallow_file_for_update(void)
+static void check_shallow_file_for_update(void)
{
if (is_shallow == -1)
die("BUG: shallow must be initialized by now");
static int write_one_shallow(const struct commit_graft *graft, void *cb_data)
{
struct write_shallow_data *data = cb_data;
- const char *hex = sha1_to_hex(graft->sha1);
+ const char *hex = oid_to_hex(&graft->oid);
if (graft->nr_parent != -1)
return 0;
if (data->flags & SEEN_ONLY) {
- struct commit *c = lookup_commit(graft->sha1);
+ struct commit *c = lookup_commit(graft->oid.hash);
if (!c || !(c->object.flags & SEEN)) {
if (data->flags & VERBOSE)
printf("Removing %s from .git/shallow\n",
{
int fd = *(int *)cb;
if (graft->nr_parent == -1)
- packet_write(fd, "shallow %s\n", sha1_to_hex(graft->sha1));
+ packet_write(fd, "shallow %s\n", oid_to_hex(&graft->oid));
return 0;
}
{
FILE *fp = cb_data;
if (graft->nr_parent == -1)
- fprintf(fp, "--shallow %s\n", sha1_to_hex(graft->sha1));
+ fprintf(fp, "--shallow %s\n", oid_to_hex(&graft->oid));
return 0;
}
}
/* return non-zero if the ref is hidden, otherwise 0 */
-static int mark_our_ref(const char *refname, const unsigned char *sha1, int flag, void *cb_data)
+static int mark_our_ref(const char *refname, const unsigned char *sha1)
{
struct object *o = lookup_unknown_object(sha1);
o->flags |= HIDDEN_REF;
return 1;
}
- if (!o)
- die("git upload-pack: cannot find object %s:", sha1_to_hex(sha1));
o->flags |= OUR_REF;
return 0;
}
+static int check_ref(const char *refname, const unsigned char *sha1, int flag, void *cb_data)
+{
+ mark_our_ref(refname, sha1);
+ return 0;
+}
+
static void format_symref_info(struct strbuf *buf, struct string_list *symref)
{
struct string_list_item *item;
const char *refname_nons = strip_namespace(refname);
unsigned char peeled[20];
- if (mark_our_ref(refname, sha1, flag, NULL))
+ if (mark_our_ref(refname, sha1))
return 0;
if (capabilities) {
advertise_shallow_grafts(1);
packet_flush(1);
} else {
- head_ref_namespaced(mark_our_ref, NULL);
- for_each_namespaced_ref(mark_our_ref, NULL);
+ head_ref_namespaced(check_ref, NULL);
+ for_each_namespaced_ref(check_ref, NULL);
}
string_list_clear(&symref, 1);
if (advertise_refs)