die("Cannot setup tracking information; starting point is not a branch.");
break;
case 1:
- /* Unique completion -- good */
+ /* Unique completion -- good, only if it is a real ref */
+ if (track == BRANCH_TRACK_EXPLICIT && !strcmp(real_ref, "HEAD"))
+ die("Cannot setup tracking information; starting point is not a branch.");
break;
default:
die("Ambiguous object name: '%s'.", start_name);
unlink(git_path("MERGE_HEAD"));
unlink(git_path("MERGE_RR"));
unlink(git_path("MERGE_MSG"));
+ unlink(git_path("MERGE_MODE"));
unlink(git_path("SQUASH_MSG"));
}
die("unable to write new_index file");
fd = hold_lock_file_for_update(&false_lock,
- git_path("next-index-%"PRIuMAX, (uintmax_t) getpid()), 1);
- git_path("next-index-%d", getpid()),
++ git_path("next-index-%"PRIuMAX,
++ (uintmax_t) getpid()),
+ LOCK_DIE_ON_ERROR);
create_base_index();
add_remove_files(&partial);
{
struct stat statbuf;
int commitable, saved_color_setting;
- struct strbuf sb;
+ struct strbuf sb = STRBUF_INIT;
char *buffer;
FILE *fp;
const char *hook_arg1 = NULL;
if (!no_verify && run_hook(index_file, "pre-commit", NULL))
return 0;
- strbuf_init(&sb, 0);
if (message.len) {
strbuf_addbuf(&sb, &message);
hook_arg1 = "message";
stripspace(&sb, 0);
if (signoff) {
- struct strbuf sob;
+ struct strbuf sob = STRBUF_INIT;
int i;
- strbuf_init(&sob, 0);
strbuf_addstr(&sob, sign_off_header);
strbuf_addstr(&sob, fmt_name(getenv("GIT_COMMITTER_NAME"),
getenv("GIT_COMMITTER_EMAIL")));
}
/*
- * Find out if the message starting at position 'start' in the strbuf
- * contains only whitespace and Signed-off-by lines.
+ * Find out if the message in the strbuf contains only whitespace and
+ * Signed-off-by lines.
*/
-static int message_is_empty(struct strbuf *sb, int start)
+static int message_is_empty(struct strbuf *sb)
{
- struct strbuf tmpl;
+ struct strbuf tmpl = STRBUF_INIT;
const char *nl;
- int eol, i;
+ int eol, i, start = 0;
if (cleanup_mode == CLEANUP_NONE && sb->len)
return 0;
/* See if the template is just a prefix of the message. */
- strbuf_init(&tmpl, 0);
if (template_file && strbuf_read_file(&tmpl, template_file, 0) > 0) {
stripspace(&tmpl, cleanup_mode == CLEANUP_ALL);
if (start + tmpl.len <= sb->len &&
return 1;
}
+static const char *find_author_by_nickname(const char *name)
+{
+ struct rev_info revs;
+ struct commit *commit;
+ struct strbuf buf = STRBUF_INIT;
+ const char *av[20];
+ int ac = 0;
+
+ init_revisions(&revs, NULL);
+ strbuf_addf(&buf, "--author=%s", name);
+ av[++ac] = "--all";
+ av[++ac] = "-i";
+ av[++ac] = buf.buf;
+ av[++ac] = NULL;
+ setup_revisions(ac, av, &revs, NULL);
+ prepare_revision_walk(&revs);
+ commit = get_revision(&revs);
+ if (commit) {
+ strbuf_release(&buf);
+ format_commit_message(commit, "%an <%ae>", &buf, DATE_NORMAL);
+ return strbuf_detach(&buf, NULL);
+ }
+ die("No existing author found with '%s'", name);
+}
+
static int parse_and_validate_options(int argc, const char *argv[],
const char * const usage[],
const char *prefix)
logfile = parse_options_fix_filename(prefix, logfile);
template_file = parse_options_fix_filename(prefix, template_file);
+ if (force_author && !strchr(force_author, '>'))
+ force_author = find_author_by_nickname(force_author);
+
if (logfile || message.len || use_message)
use_editor = 0;
if (edit_flag)
{
struct rev_info rev;
struct commit *commit;
+ static const char *format = "format:%h: \"%s\"";
+ unsigned char junk_sha1[20];
+ const char *head = resolve_ref("HEAD", junk_sha1, 0, NULL);
commit = lookup_commit(sha1);
if (!commit)
rev.verbose_header = 1;
rev.show_root_diff = 1;
- get_commit_format("format:%h: %s", &rev);
+ get_commit_format(format, &rev);
rev.always_show_header = 0;
rev.diffopt.detect_rename = 1;
rev.diffopt.rename_limit = 100;
rev.diffopt.break_opt = 0;
diff_setup_done(&rev.diffopt);
- printf("Created %scommit ", initial_commit ? "initial " : "");
+ printf("[%s%s]: created ",
+ !prefixcmp(head, "refs/heads/") ?
+ head + 11 :
+ !strcmp(head, "HEAD") ?
+ "detached HEAD" :
+ head,
+ initial_commit ? " (root-commit)" : "");
if (!log_tree_commit(&rev, commit)) {
struct strbuf buf = STRBUF_INIT;
- format_commit_message(commit, "%h: %s", &buf, DATE_NORMAL);
+ format_commit_message(commit, format + 7, &buf, DATE_NORMAL);
printf("%s\n", buf.buf);
strbuf_release(&buf);
}
"You may want to amend it after fixing the message, or set the config\n"
"variable i18n.commitencoding to the encoding your project uses.\n";
-static void add_parent(struct strbuf *sb, const unsigned char *sha1)
-{
- struct object *obj = parse_object(sha1);
- const char *parent = sha1_to_hex(sha1);
- const char *cp;
-
- if (!obj)
- die("Unable to find commit parent %s", parent);
- if (obj->type != OBJ_COMMIT)
- die("Parent %s isn't a proper commit", parent);
-
- for (cp = sb->buf; cp && (cp = strstr(cp, "\nparent ")); cp += 8) {
- if (!memcmp(cp + 8, parent, 40) && cp[48] == '\n') {
- error("duplicate parent %s ignored", parent);
- return;
- }
- }
- strbuf_addf(sb, "parent %s\n", parent);
-}
-
int cmd_commit(int argc, const char **argv, const char *prefix)
{
- int header_len;
- struct strbuf sb;
+ struct strbuf sb = STRBUF_INIT;
const char *index_file, *reflog_msg;
char *nl, *p;
unsigned char commit_sha1[20];
struct ref_lock *ref_lock;
+ struct commit_list *parents = NULL, **pptr = &parents;
+ struct stat statbuf;
+ int allow_fast_forward = 1;
git_config(git_commit_config, NULL);
return 1;
}
- /*
- * The commit object
- */
- strbuf_init(&sb, 0);
- strbuf_addf(&sb, "tree %s\n",
- sha1_to_hex(active_cache_tree->sha1));
-
/* Determine parents */
if (initial_commit) {
reflog_msg = "commit (initial)";
die("could not parse HEAD commit");
for (c = commit->parents; c; c = c->next)
- add_parent(&sb, c->item->object.sha1);
+ pptr = &commit_list_insert(c->item, pptr)->next;
} else if (in_merge) {
- struct strbuf m;
+ struct strbuf m = STRBUF_INIT;
FILE *fp;
reflog_msg = "commit (merge)";
- add_parent(&sb, head_sha1);
- strbuf_init(&m, 0);
+ pptr = &commit_list_insert(lookup_commit(head_sha1), pptr)->next;
fp = fopen(git_path("MERGE_HEAD"), "r");
if (fp == NULL)
die("could not open %s for reading: %s",
unsigned char sha1[20];
if (get_sha1_hex(m.buf, sha1) < 0)
die("Corrupt MERGE_HEAD file (%s)", m.buf);
- add_parent(&sb, sha1);
+ pptr = &commit_list_insert(lookup_commit(sha1), pptr)->next;
}
fclose(fp);
strbuf_release(&m);
+ if (!stat(git_path("MERGE_MODE"), &statbuf)) {
+ if (strbuf_read_file(&sb, git_path("MERGE_MODE"), 0) < 0)
+ die("could not read MERGE_MODE: %s",
+ strerror(errno));
+ if (!strcmp(sb.buf, "no-ff"))
+ allow_fast_forward = 0;
+ }
+ if (allow_fast_forward)
+ parents = reduce_heads(parents);
} else {
reflog_msg = "commit";
- strbuf_addf(&sb, "parent %s\n", sha1_to_hex(head_sha1));
+ pptr = &commit_list_insert(lookup_commit(head_sha1), pptr)->next;
}
- strbuf_addf(&sb, "author %s\n",
- fmt_ident(author_name, author_email, author_date, IDENT_ERROR_ON_NO_NAME));
- strbuf_addf(&sb, "committer %s\n", git_committer_info(IDENT_ERROR_ON_NO_NAME));
- if (!is_encoding_utf8(git_commit_encoding))
- strbuf_addf(&sb, "encoding %s\n", git_commit_encoding);
- strbuf_addch(&sb, '\n');
-
/* Finally, get the commit message */
- header_len = sb.len;
+ strbuf_reset(&sb);
if (strbuf_read_file(&sb, git_path(commit_editmsg), 0) < 0) {
rollback_index_files();
die("could not read commit message");
if (cleanup_mode != CLEANUP_NONE)
stripspace(&sb, cleanup_mode == CLEANUP_ALL);
- if (sb.len < header_len || message_is_empty(&sb, header_len)) {
+ if (message_is_empty(&sb)) {
rollback_index_files();
fprintf(stderr, "Aborting commit due to empty commit message.\n");
exit(1);
}
- strbuf_addch(&sb, '\0');
- if (is_encoding_utf8(git_commit_encoding) && !is_utf8(sb.buf))
- fprintf(stderr, commit_utf8_warn);
- if (write_sha1_file(sb.buf, sb.len - 1, commit_type, commit_sha1)) {
+ if (commit_tree(sb.buf, active_cache_tree->sha1, parents, commit_sha1,
+ fmt_ident(author_name, author_email, author_date,
+ IDENT_ERROR_ON_NO_NAME))) {
rollback_index_files();
die("failed to write commit object");
}
initial_commit ? NULL : head_sha1,
0);
- nl = strchr(sb.buf + header_len, '\n');
+ nl = strchr(sb.buf, '\n');
if (nl)
strbuf_setlen(&sb, nl + 1 - sb.buf);
else
strbuf_addch(&sb, '\n');
- strbuf_remove(&sb, 0, header_len);
strbuf_insert(&sb, 0, reflog_msg, strlen(reflog_msg));
strbuf_insert(&sb, strlen(reflog_msg), ": ", 2);
unlink(git_path("MERGE_HEAD"));
unlink(git_path("MERGE_MSG"));
+ unlink(git_path("MERGE_MODE"));
unlink(git_path("SQUASH_MSG"));
if (commit_index_files())
*av++ = "--fix-thin";
if (args.lock_pack || unpack_limit) {
int s = sprintf(keep_arg,
- "--keep=fetch-pack %d on ", getpid());
+ "--keep=fetch-pack %"PRIuMAX " on ", (uintmax_t) getpid());
if (gethostname(keep_arg + s, sizeof(keep_arg) - s))
strcpy(keep_arg + s, "localhost");
*av++ = keep_arg;
conn = git_connect(fd, (char *)dest, args.uploadpack,
args.verbose ? CONNECT_VERBOSE : 0);
if (conn) {
- get_remote_heads(fd[0], &ref, 0, NULL, 0);
+ get_remote_heads(fd[0], &ref, 0, NULL, 0, NULL);
ref = fetch_pack(&args, fd, conn, ref, dest, nr_heads, heads, NULL);
close(fd[0]);
)
die("shallow file was changed during fetch");
- fd = hold_lock_file_for_update(&lock, shallow, 1);
+ fd = hold_lock_file_for_update(&lock, shallow,
+ LOCK_DIE_ON_ERROR);
if (!write_shallow_commits(fd, 0)) {
unlink(shallow);
rollback_lock_file(&lock);
#include "cache-tree.h"
#include "diff.h"
#include "revision.h"
+#include "rerere.h"
+#include "merge-recursive.h"
/*
* This implements the builtins revert and cherry-pick.
sha1_to_hex(commit->object.sha1));
}
-static int merge_recursive(const char *base_sha1,
- const char *head_sha1, const char *head_name,
- const char *next_sha1, const char *next_name)
-{
- char buffer[256];
- const char *argv[6];
- int i = 0;
-
- sprintf(buffer, "GITHEAD_%s", head_sha1);
- setenv(buffer, head_name, 1);
- sprintf(buffer, "GITHEAD_%s", next_sha1);
- setenv(buffer, next_name, 1);
-
- /*
- * This three way merge is an interesting one. We are at
- * $head, and would want to apply the change between $commit
- * and $prev on top of us (when reverting), or the change between
- * $prev and $commit on top of us (when cherry-picking or replaying).
- */
- argv[i++] = "merge-recursive";
- if (base_sha1)
- argv[i++] = base_sha1;
- argv[i++] = "--";
- argv[i++] = head_sha1;
- argv[i++] = next_sha1;
- argv[i++] = NULL;
-
- return run_command_v_opt(argv, RUN_COMMAND_NO_STDIN | RUN_GIT_CMD);
-}
-
static char *help_msg(const unsigned char *sha1)
{
static char helpbuf[1024];
return !!DIFF_OPT_TST(&rev.diffopt, HAS_CHANGES);
}
+static struct tree *empty_tree(void)
+{
+ struct tree *tree = xcalloc(1, sizeof(struct tree));
+
+ tree->object.parsed = 1;
+ tree->object.type = OBJ_TREE;
+ pretend_sha1_file(NULL, 0, OBJ_TREE, tree->object.sha1);
+ return tree;
+}
+
static int revert_or_cherry_pick(int argc, const char **argv)
{
unsigned char head[20];
struct commit *base, *next, *parent;
- int i;
+ int i, index_fd, clean;
char *oneline, *reencoded_message = NULL;
const char *message, *encoding;
const char *defmsg = xstrdup(git_path("MERGE_MSG"));
+ struct merge_options o;
+ struct tree *result, *next_tree, *base_tree, *head_tree;
+ static struct lock_file index_lock;
git_config(git_default_config, NULL);
me = action == REVERT ? "revert" : "cherry-pick";
if (action == REVERT && !no_replay)
die("revert is incompatible with replay");
+ if (read_cache() < 0)
+ die("git %s: failed to read the index", me);
if (no_commit) {
/*
* We do not intend to commit immediately. We just want to
} else {
if (get_sha1("HEAD", head))
die ("You do not have a valid HEAD");
- if (read_cache() < 0)
- die("could not read the index");
if (index_is_dirty())
die ("Dirty index: cannot %s", me);
- discard_cache();
}
+ discard_cache();
+
+ index_fd = hold_locked_index(&index_lock, 1);
if (!commit->parents) {
if (action == REVERT)
die ("Cannot get commit message for %s",
sha1_to_hex(commit->object.sha1));
+ if (parent && parse_commit(parent) < 0)
+ die("%s: cannot parse parent commit %s",
+ me, sha1_to_hex(parent->object.sha1));
+
/*
* "commit" is an existing commit. We would want to apply
* the difference it introduces since its first parent "prev"
* reverse of it if we are revert.
*/
- msg_fd = hold_lock_file_for_update(&msg_file, defmsg, 1);
+ msg_fd = hold_lock_file_for_update(&msg_file, defmsg,
+ LOCK_DIE_ON_ERROR);
encoding = get_encoding(message);
if (!encoding)
}
}
- if (merge_recursive(base == NULL ?
- NULL : sha1_to_hex(base->object.sha1),
- sha1_to_hex(head), "HEAD",
- sha1_to_hex(next->object.sha1), oneline) ||
- write_cache_as_tree(head, 0, NULL)) {
+ read_cache();
+ init_merge_options(&o);
+ o.branch1 = "HEAD";
+ o.branch2 = oneline;
+
+ head_tree = parse_tree_indirect(head);
+ next_tree = next ? next->tree : empty_tree();
+ base_tree = base ? base->tree : empty_tree();
+
+ clean = merge_trees(&o,
+ head_tree,
+ next_tree, base_tree, &result);
+
+ if (active_cache_changed &&
+ (write_cache(index_fd, active_cache, active_nr) ||
+ commit_locked_index(&index_lock)))
+ die("%s: Unable to write new index file", me);
+
+ if (!clean) {
add_to_msg("\nConflicts:\n\n");
- read_cache();
for (i = 0; i < active_nr;) {
struct cache_entry *ce = active_cache[i++];
if (ce_stage(ce)) {
die ("Error wrapping up %s", defmsg);
fprintf(stderr, "Automatic %s failed.%s\n",
me, help_msg(commit->object.sha1));
+ rerere();
exit(1);
}
if (commit_lock_file(&msg_file) < 0)
#include "hash.h"
#include SHA1_HEADER
-#include <zlib.h>
+#ifndef git_SHA_CTX
+#define git_SHA_CTX SHA_CTX
+#define git_SHA1_Init SHA1_Init
+#define git_SHA1_Update SHA1_Update
+#define git_SHA1_Final SHA1_Final
+#endif
+#include <zlib.h>
#if defined(NO_DEFLATE_BOUND) || ZLIB_VERNUM < 0x1200
#define deflateBound(c,s) ((s) + (((s) + 7) >> 3) + (((s) + 63) >> 6) + 11)
#endif
#define CE_NAMEMASK (0x0fff)
#define CE_STAGEMASK (0x3000)
+#define CE_EXTENDED (0x4000)
#define CE_VALID (0x8000)
#define CE_STAGESHIFT 12
#define ce_match_stat(ce, st, options) ie_match_stat(&the_index, (ce), (st), (options))
#define ce_modified(ce, st, options) ie_modified(&the_index, (ce), (st), (options))
#define cache_name_exists(name, namelen, igncase) index_name_exists(&the_index, (name), (namelen), (igncase))
+#define cache_name_is_other(name, namelen) index_name_is_other(&the_index, (name), (namelen))
#endif
enum object_type {
extern int is_inside_git_dir(void);
extern char *git_work_tree_cfg;
extern int is_inside_work_tree(void);
+extern int have_git_dir(void);
extern const char *get_git_dir(void);
extern char *get_object_directory(void);
extern char *get_index_file(void);
#define ADD_CACHE_OK_TO_REPLACE 2 /* Ok to replace file/directory */
#define ADD_CACHE_SKIP_DFCHECK 4 /* Ok to skip DF conflict checks */
#define ADD_CACHE_JUST_APPEND 8 /* Append only; tree.c::read_tree() */
+#define ADD_CACHE_NEW_ONLY 16 /* Do not replace existing ones */
extern int add_index_entry(struct index_state *, struct cache_entry *ce, int option);
extern struct cache_entry *refresh_cache_entry(struct cache_entry *ce, int really);
extern void rename_index_entry_at(struct index_state *, int pos, const char *new_name);
#define ADD_CACHE_VERBOSE 1
#define ADD_CACHE_PRETEND 2
#define ADD_CACHE_IGNORE_ERRORS 4
+#define ADD_CACHE_IGNORE_REMOVAL 8
+#define ADD_CACHE_INTENT 16
extern int add_to_index(struct index_state *, const char *path, struct stat *, int flags);
extern int add_file_to_index(struct index_state *, const char *path, int flags);
extern struct cache_entry *make_cache_entry(unsigned int mode, const unsigned char *sha1, const char *path, int stage, int refresh);
extern int ce_same_name(struct cache_entry *a, struct cache_entry *b);
+extern int index_name_is_other(const struct index_state *, const char *, int);
/* do stat comparison even if CE_VALID is true */
#define CE_MATCH_IGNORE_VALID 01
extern int ce_path_match(const struct cache_entry *ce, const char **pathspec);
extern int index_fd(unsigned char *sha1, int fd, struct stat *st, int write_object, enum object_type type, const char *path);
-extern int index_pipe(unsigned char *sha1, int fd, const char *type, int write_object);
extern int index_path(unsigned char *sha1, const char *path, struct stat *st, int write_object);
extern void fill_stat_cache_info(struct cache_entry *ce, struct stat *st);
char on_list;
char filename[PATH_MAX];
};
+ #define LOCK_DIE_ON_ERROR 1
+ #define LOCK_NODEREF 2
extern int hold_lock_file_for_update(struct lock_file *, const char *path, int);
extern int hold_lock_file_for_append(struct lock_file *, const char *path, int);
extern int commit_lock_file(struct lock_file *);
extern enum safe_crlf safe_crlf;
enum branch_track {
+ BRANCH_TRACK_UNSPECIFIED = -1,
BRANCH_TRACK_NEVER = 0,
BRANCH_TRACK_REMOTE,
BRANCH_TRACK_ALWAYS,
{
return path[0] == '/' || has_dos_drive_prefix(path);
}
+int is_directory(const char *);
const char *make_absolute_path(const char *path);
const char *make_nonrelative_path(const char *path);
const char *make_relative_path(const char *abs, const char *base);
} *alt_odb_list;
extern void prepare_alt_odb(void);
extern void add_to_alternates_file(const char *reference);
+typedef int alt_odb_fn(struct alternate_object_database *, void *);
+extern void foreach_alt_odb(alt_odb_fn, void*);
struct pack_window {
struct pack_window *next;
extern int finish_connect(struct child_process *conn);
extern int path_match(const char *path, int nr, char **match);
extern int get_ack(int fd, unsigned char *result_sha1);
-extern struct ref **get_remote_heads(int in, struct ref **list, int nr_match, char **match, unsigned int flags);
+struct extra_have_objects {
+ int nr, alloc;
+ unsigned char (*array)[20];
+};
+extern struct ref **get_remote_heads(int in, struct ref **list, int nr_match, char **match, unsigned int flags, struct extra_have_objects *);
extern int server_supports(const char *feature);
extern struct packed_git *parse_pack_index(unsigned char *sha1);
extern int git_default_config(const char *, const char *, void *);
extern int git_config_from_file(config_fn_t fn, const char *, void *);
extern int git_config(config_fn_t fn, void *);
-extern int git_parse_long(const char *, long *);
extern int git_parse_ulong(const char *, unsigned long *);
extern int git_config_int(const char *, const char *);
extern unsigned long git_config_ulong(const char *, const char *);
return retval;
}
+/*
+ * If the "reading" argument is set, this function finds out what _object_
+ * the ref points at by "reading" the ref. The ref, if it is not symbolic,
+ * has to exist, and if it is symbolic, it has to point at an existing ref,
+ * because the "read" goes through the symref to the ref it points at.
+ *
+ * The access that is not "reading" may often be "writing", but does not
+ * have to; it can be merely checking _where it leads to_. If it is a
+ * prelude to "writing" to the ref, a write to a symref that points at
+ * yet-to-be-born ref will create the real ref pointed by the symref.
+ * reading=0 allows the caller to check where such a symref leads to.
+ */
const char *resolve_ref(const char *ref, unsigned char *sha1, int reading, int *flag)
{
int depth = MAXDEPTH;
if (--depth < 0)
return NULL;
- /* Special case: non-existing file.
- * Not having the refs/heads/new-branch is OK
- * if we are writing into it, so is .git/HEAD
- * that points at refs/heads/master still to be
- * born. It is NOT OK if we are resolving for
- * reading.
- */
+ /* Special case: non-existing file. */
if (lstat(path, &st) < 0) {
struct ref_list *list = get_packed_refs();
while (list) {
struct ref_lock *lock;
struct stat st;
int last_errno = 0;
- int type;
+ int type, lflags;
int mustexist = (old_sha1 && !is_null_sha1(old_sha1));
lock = xcalloc(1, sizeof(struct ref_lock));
lock->lk = xcalloc(1, sizeof(struct lock_file));
- if (flags & REF_NODEREF)
+ lflags = LOCK_DIE_ON_ERROR;
+ if (flags & REF_NODEREF) {
ref = orig_ref;
+ lflags |= LOCK_NODEREF;
+ }
lock->ref_name = xstrdup(ref);
lock->orig_ref_name = xstrdup(orig_ref);
ref_file = git_path("%s", ref);
error("unable to create directory for %s", ref_file);
goto error_return;
}
- lock->lock_fd = hold_lock_file_for_update(lock->lk, ref_file, 1);
+ lock->lock_fd = hold_lock_file_for_update(lock->lk, ref_file, lflags);
return old_sha1 ? verify_lock(lock, old_sha1, mustexist) : lock;
error_return:
static int handle_file(const char *path,
unsigned char *sha1, const char *output)
{
- SHA_CTX ctx;
+ git_SHA_CTX ctx;
char buf[1024];
- int hunk = 0, hunk_no = 0;
- struct strbuf one, two;
+ int hunk_no = 0;
+ enum {
+ RR_CONTEXT = 0, RR_SIDE_1, RR_SIDE_2, RR_ORIGINAL,
+ } hunk = RR_CONTEXT;
+ struct strbuf one = STRBUF_INIT, two = STRBUF_INIT;
FILE *f = fopen(path, "r");
FILE *out = NULL;
}
if (sha1)
- SHA1_Init(&ctx);
+ git_SHA1_Init(&ctx);
- strbuf_init(&one, 0);
- strbuf_init(&two, 0);
while (fgets(buf, sizeof(buf), f)) {
if (!prefixcmp(buf, "<<<<<<< ")) {
- if (hunk)
+ if (hunk != RR_CONTEXT)
goto bad;
- hunk = 1;
+ hunk = RR_SIDE_1;
+ } else if (!prefixcmp(buf, "|||||||") && isspace(buf[7])) {
+ if (hunk != RR_SIDE_1)
+ goto bad;
+ hunk = RR_ORIGINAL;
} else if (!prefixcmp(buf, "=======") && isspace(buf[7])) {
- if (hunk != 1)
+ if (hunk != RR_SIDE_1 && hunk != RR_ORIGINAL)
goto bad;
- hunk = 2;
+ hunk = RR_SIDE_2;
} else if (!prefixcmp(buf, ">>>>>>> ")) {
- if (hunk != 2)
+ if (hunk != RR_SIDE_2)
goto bad;
if (strbuf_cmp(&one, &two) > 0)
strbuf_swap(&one, &two);
hunk_no++;
- hunk = 0;
+ hunk = RR_CONTEXT;
if (out) {
fputs("<<<<<<<\n", out);
fwrite(one.buf, one.len, 1, out);
fputs(">>>>>>>\n", out);
}
if (sha1) {
- SHA1_Update(&ctx, one.buf ? one.buf : "",
+ git_SHA1_Update(&ctx, one.buf ? one.buf : "",
one.len + 1);
- SHA1_Update(&ctx, two.buf ? two.buf : "",
+ git_SHA1_Update(&ctx, two.buf ? two.buf : "",
two.len + 1);
}
strbuf_reset(&one);
strbuf_reset(&two);
- } else if (hunk == 1)
+ } else if (hunk == RR_SIDE_1)
strbuf_addstr(&one, buf);
- else if (hunk == 2)
+ else if (hunk == RR_ORIGINAL)
+ ; /* discard */
+ else if (hunk == RR_SIDE_2)
strbuf_addstr(&two, buf);
else if (out)
fputs(buf, out);
if (out)
fclose(out);
if (sha1)
- SHA1_Final(sha1, &ctx);
- if (hunk) {
+ git_SHA1_Final(sha1, &ctx);
+ if (hunk != RR_CONTEXT) {
if (output)
unlink(output);
return error("Could not parse conflict hunks in %s", path);
static int is_rerere_enabled(void)
{
- struct stat st;
const char *rr_cache;
int rr_cache_exists;
return 0;
rr_cache = git_path("rr-cache");
- rr_cache_exists = !stat(rr_cache, &st) && S_ISDIR(st.st_mode);
+ rr_cache_exists = is_directory(rr_cache);
if (rerere_enabled < 0)
return rr_cache_exists;
return -1;
merge_rr_path = xstrdup(git_path("MERGE_RR"));
- fd = hold_lock_file_for_update(&write_lock, merge_rr_path, 1);
+ fd = hold_lock_file_for_update(&write_lock, merge_rr_path,
+ LOCK_DIE_ON_ERROR);
read_rr(merge_rr);
return fd;
}
pos = strchr(pos, '/');
if (!pos)
break;
- *pos = 0;
+ while (*++pos == '/')
+ ;
+ if (!*pos)
+ break;
+ *--pos = '\0';
if (!stat(path, &st)) {
/* path exists */
if (!S_ISDIR(st.st_mode)) {
*/
static int link_alt_odb_entry(const char * entry, int len, const char * relative_base, int depth)
{
- struct stat st;
const char *objdir = get_object_directory();
struct alternate_object_database *ent;
struct alternate_object_database *alt;
ent->base[pfxlen] = ent->base[entlen-1] = 0;
/* Detect cases where alternate disappeared */
- if (stat(ent->base, &st) || !S_ISDIR(st.st_mode)) {
+ if (!is_directory(ent->base)) {
error("object directory %s does not exist; "
"check .git/objects/info/alternates.",
ent->base);
void add_to_alternates_file(const char *reference)
{
struct lock_file *lock = xcalloc(1, sizeof(struct lock_file));
- int fd = hold_lock_file_for_append(lock, git_path("objects/info/alternates"), 1);
+ int fd = hold_lock_file_for_append(lock, git_path("objects/info/alternates"), LOCK_DIE_ON_ERROR);
char *alt = mkpath("%s/objects\n", reference);
write_or_die(fd, alt, strlen(alt));
if (commit_lock_file(lock))
link_alt_odb_entries(alt, alt + strlen(alt), '\n', NULL, 0);
}
+void foreach_alt_odb(alt_odb_fn fn, void *cb)
+{
+ struct alternate_object_database *ent;
+
+ prepare_alt_odb();
+ for (ent = alt_odb_list; ent; ent = ent->next)
+ if (fn(ent, cb))
+ return;
+}
+
void prepare_alt_odb(void)
{
const char *alt;
struct delta_base_cache_entry *ent = delta_base_cache + hash;
ret = ent->data;
- if (ret && ent->p == p && ent->base_offset == base_offset)
- goto found_cache_entry;
- return unpack_entry(p, base_offset, type, base_size);
+ if (!ret || ent->p != p || ent->base_offset != base_offset)
+ return unpack_entry(p, base_offset, type, base_size);
-found_cache_entry:
if (!keep_cache) {
ent->data = NULL;
ent->lru.next->prev = ent->lru.prev;
const char *type, unsigned char *sha1,
char *hdr, int *hdrlen)
{
- SHA_CTX c;
+ git_SHA_CTX c;
/* Generate the header */
*hdrlen = sprintf(hdr, "%s %lu", type, len)+1;
/* Sha1.. */
- SHA1_Init(&c);
- SHA1_Update(&c, hdr, *hdrlen);
- SHA1_Update(&c, buf, len);
- SHA1_Final(sha1, &c);
+ git_SHA1_Init(&c);
+ git_SHA1_Update(&c, hdr, *hdrlen);
+ git_SHA1_Update(&c, buf, len);
+ git_SHA1_Final(sha1, &c);
}
/*
enum object_type type;
char hdr[32];
int hdrlen;
+ int ret;
if (has_loose_object(sha1))
return 0;
if (!buf)
return error("cannot read sha1_file for %s", sha1_to_hex(sha1));
hdrlen = sprintf(hdr, "%s %lu", typename(type), len) + 1;
- return write_loose_object(sha1, hdr, hdrlen, buf, len, mtime);
+ ret = write_loose_object(sha1, hdr, hdrlen, buf, len, mtime);
+ free(buf);
+
+ return ret;
}
int has_pack_index(const unsigned char *sha1)
return has_loose_object(sha1);
}
-int index_pipe(unsigned char *sha1, int fd, const char *type, int write_object)
-{
- struct strbuf buf;
- int ret;
-
- strbuf_init(&buf, 0);
- if (strbuf_read(&buf, fd, 4096) < 0) {
- strbuf_release(&buf);
- return -1;
- }
-
- if (!type)
- type = blob_type;
- if (write_object)
- ret = write_sha1_file(buf.buf, buf.len, type, sha1);
- else
- ret = hash_sha1_file(buf.buf, buf.len, type, sha1);
- strbuf_release(&buf);
-
- return ret;
-}
-
-int index_fd(unsigned char *sha1, int fd, struct stat *st, int write_object,
- enum object_type type, const char *path)
+static int index_mem(unsigned char *sha1, void *buf, size_t size,
+ int write_object, enum object_type type, const char *path)
{
- size_t size = xsize_t(st->st_size);
- void *buf = NULL;
int ret, re_allocated = 0;
- if (size)
- buf = xmmap(NULL, size, PROT_READ, MAP_PRIVATE, fd, 0);
- close(fd);
-
if (!type)
type = OBJ_BLOB;
/*
* Convert blobs to git internal format
*/
- if ((type == OBJ_BLOB) && S_ISREG(st->st_mode)) {
- struct strbuf nbuf;
- strbuf_init(&nbuf, 0);
+ if ((type == OBJ_BLOB) && path) {
+ struct strbuf nbuf = STRBUF_INIT;
if (convert_to_git(path, buf, size, &nbuf,
write_object ? safe_crlf : 0)) {
- munmap(buf, size);
buf = strbuf_detach(&nbuf, &size);
re_allocated = 1;
}
ret = write_sha1_file(buf, size, typename(type), sha1);
else
ret = hash_sha1_file(buf, size, typename(type), sha1);
- if (re_allocated) {
+ if (re_allocated)
free(buf);
- return ret;
- }
- if (size)
+ return ret;
+}
+
+int index_fd(unsigned char *sha1, int fd, struct stat *st, int write_object,
+ enum object_type type, const char *path)
+{
+ int ret;
+ size_t size = xsize_t(st->st_size);
+
+ if (!S_ISREG(st->st_mode)) {
+ struct strbuf sbuf = STRBUF_INIT;
+ if (strbuf_read(&sbuf, fd, 4096) >= 0)
+ ret = index_mem(sha1, sbuf.buf, sbuf.len, write_object,
+ type, path);
+ else
+ ret = -1;
+ strbuf_release(&sbuf);
+ } else if (size) {
+ void *buf = xmmap(NULL, size, PROT_READ, MAP_PRIVATE, fd, 0);
+ ret = index_mem(sha1, buf, size, write_object, type, path);
munmap(buf, size);
+ } else
+ ret = index_mem(sha1, NULL, size, write_object, type, path);
+ close(fd);
return ret;
}
test "$(git config branch.track2.merge)"
git config branch.autosetupmerge false'
- test_expect_success \
- 'checkout w/--track from non-branch HEAD fails' '
- git checkout -b delete-me master &&
- rm .git/refs/heads/delete-me &&
- test refs/heads/delete-me = "$(git symbolic-ref HEAD)" &&
- test_must_fail git checkout --track -b track'
+ test_expect_success 'checkout w/--track from non-branch HEAD fails' '
+ git checkout master^0 &&
+ test_must_fail git symbolic-ref HEAD &&
+ test_must_fail git checkout --track -b track &&
+ test_must_fail git rev-parse --verify track &&
+ test_must_fail git symbolic-ref HEAD &&
+ test "z$(git rev-parse master^0)" = "z$(git rev-parse HEAD)"
+ '
+
+ test_expect_success 'detach a symbolic link HEAD' '
+ git checkout master &&
+ git config --bool core.prefersymlinkrefs yes &&
+ git checkout side &&
+ git checkout master &&
+ it=$(git symbolic-ref HEAD) &&
+ test "z$it" = zrefs/heads/master &&
+ here=$(git rev-parse --verify refs/heads/master) &&
+ git checkout side^ &&
+ test "z$(git rev-parse --verify refs/heads/master)" = "z$here"
+ '
-test_expect_success 'checkout an unmerged path should fail' '
+test_expect_success \
+ 'checkout with --track fakes a sensible -b <name>' '
+ git update-ref refs/remotes/origin/koala/bear renamer &&
+ git update-ref refs/new/koala/bear renamer &&
+
+ git checkout --track origin/koala/bear &&
+ test "refs/heads/koala/bear" = "$(git symbolic-ref HEAD)" &&
+ test "$(git rev-parse HEAD)" = "$(git rev-parse renamer)" &&
+
+ git checkout master && git branch -D koala/bear &&
+
+ git checkout --track refs/remotes/origin/koala/bear &&
+ test "refs/heads/koala/bear" = "$(git symbolic-ref HEAD)" &&
+ test "$(git rev-parse HEAD)" = "$(git rev-parse renamer)" &&
+
+ git checkout master && git branch -D koala/bear &&
+
+ git checkout --track remotes/origin/koala/bear &&
+ test "refs/heads/koala/bear" = "$(git symbolic-ref HEAD)" &&
+ test "$(git rev-parse HEAD)" = "$(git rev-parse renamer)" &&
+
+ git checkout master && git branch -D koala/bear &&
+
+ git checkout --track refs/new/koala/bear &&
+ test "refs/heads/koala/bear" = "$(git symbolic-ref HEAD)" &&
+ test "$(git rev-parse HEAD)" = "$(git rev-parse renamer)"
+'
+
+test_expect_success \
+ 'checkout with --track, but without -b, fails with too short tracked name' '
+ test_must_fail git checkout --track renamer'
+
+setup_conflicting_index () {
rm -f .git/index &&
O=$(echo original | git hash-object -w --stdin) &&
A=$(echo ourside | git hash-object -w --stdin) &&
echo "100644 $A 2 file" &&
echo "100644 $B 3 file" &&
echo "100644 $A 0 filf"
- ) | git update-index --index-info &&
+ ) | git update-index --index-info
+}
+
+test_expect_success 'checkout an unmerged path should fail' '
+ setup_conflicting_index &&
echo "none of the above" >sample &&
cat sample >fild &&
cat sample >file &&
test_cmp sample file
'
+test_expect_success 'checkout with an unmerged path can be ignored' '
+ setup_conflicting_index &&
+ echo "none of the above" >sample &&
+ echo ourside >expect &&
+ cat sample >fild &&
+ cat sample >file &&
+ cat sample >filf &&
+ git checkout -f fild file filf &&
+ test_cmp expect fild &&
+ test_cmp expect filf &&
+ test_cmp sample file
+'
+
+test_expect_success 'checkout unmerged stage' '
+ setup_conflicting_index &&
+ echo "none of the above" >sample &&
+ echo ourside >expect &&
+ cat sample >fild &&
+ cat sample >file &&
+ cat sample >filf &&
+ git checkout --ours . &&
+ test_cmp expect fild &&
+ test_cmp expect filf &&
+ test_cmp expect file &&
+ git checkout --theirs file &&
+ test ztheirside = "z$(cat file)"
+'
+
+test_expect_success 'checkout with --merge' '
+ setup_conflicting_index &&
+ echo "none of the above" >sample &&
+ echo ourside >expect &&
+ cat sample >fild &&
+ cat sample >file &&
+ cat sample >filf &&
+ git checkout -m -- fild file filf &&
+ (
+ echo "<<<<<<< ours"
+ echo ourside
+ echo "======="
+ echo theirside
+ echo ">>>>>>> theirs"
+ ) >merged &&
+ test_cmp expect fild &&
+ test_cmp expect filf &&
+ test_cmp merged file
+'
+
+test_expect_success 'checkout with --merge, in diff3 -m style' '
+ git config merge.conflictstyle diff3 &&
+ setup_conflicting_index &&
+ echo "none of the above" >sample &&
+ echo ourside >expect &&
+ cat sample >fild &&
+ cat sample >file &&
+ cat sample >filf &&
+ git checkout -m -- fild file filf &&
+ (
+ echo "<<<<<<< ours"
+ echo ourside
+ echo "|||||||"
+ echo original
+ echo "======="
+ echo theirside
+ echo ">>>>>>> theirs"
+ ) >merged &&
+ test_cmp expect fild &&
+ test_cmp expect filf &&
+ test_cmp merged file
+'
+
+test_expect_success 'checkout --conflict=merge, overriding config' '
+ git config merge.conflictstyle diff3 &&
+ setup_conflicting_index &&
+ echo "none of the above" >sample &&
+ echo ourside >expect &&
+ cat sample >fild &&
+ cat sample >file &&
+ cat sample >filf &&
+ git checkout --conflict=merge -- fild file filf &&
+ (
+ echo "<<<<<<< ours"
+ echo ourside
+ echo "======="
+ echo theirside
+ echo ">>>>>>> theirs"
+ ) >merged &&
+ test_cmp expect fild &&
+ test_cmp expect filf &&
+ test_cmp merged file
+'
+
+test_expect_success 'checkout --conflict=diff3' '
+ git config --unset merge.conflictstyle
+ setup_conflicting_index &&
+ echo "none of the above" >sample &&
+ echo ourside >expect &&
+ cat sample >fild &&
+ cat sample >file &&
+ cat sample >filf &&
+ git checkout --conflict=diff3 -- fild file filf &&
+ (
+ echo "<<<<<<< ours"
+ echo ourside
+ echo "|||||||"
+ echo original
+ echo "======="
+ echo theirside
+ echo ">>>>>>> theirs"
+ ) >merged &&
+ test_cmp expect fild &&
+ test_cmp expect filf &&
+ test_cmp merged file
+'
+
+test_expect_success 'failing checkout -b should not break working tree' '
+ git reset --hard master &&
+ git symbolic-ref HEAD refs/heads/master &&
+ test_must_fail git checkout -b renamer side^ &&
+ test $(git symbolic-ref HEAD) = refs/heads/master &&
+ git diff --exit-code &&
+ git diff --cached --exit-code
+
+'
+
test_done