checkout: relocate --to's "no branch specified" check
[gitweb.git] / builtin / receive-pack.c
index 99136526c91232382c773be45d13f79a32872a9a..3b8f420d04c9693419ccbdf3bc30b73cd27836e6 100644 (file)
@@ -1,4 +1,5 @@
 #include "builtin.h"
+#include "lockfile.h"
 #include "pack.h"
 #include "refs.h"
 #include "pkt-line.h"
@@ -17,6 +18,7 @@
 #include "version.h"
 #include "tag.h"
 #include "gpg-interface.h"
+#include "sigchain.h"
 
 static const char receive_pack_usage[] = "git receive-pack <git-dir>";
 
@@ -451,7 +453,6 @@ static const char *check_nonce(const char *buf, size_t len)
 static void prepare_push_cert_sha1(struct child_process *proc)
 {
        static int already_done;
-       struct argv_array env = ARGV_ARRAY_INIT;
 
        if (!push_cert.len)
                return;
@@ -485,27 +486,33 @@ static void prepare_push_cert_sha1(struct child_process *proc)
                nonce_status = check_nonce(push_cert.buf, bogs);
        }
        if (!is_null_sha1(push_cert_sha1)) {
-               argv_array_pushf(&env, "GIT_PUSH_CERT=%s", sha1_to_hex(push_cert_sha1));
-               argv_array_pushf(&env, "GIT_PUSH_CERT_SIGNER=%s",
+               argv_array_pushf(&proc->env_array, "GIT_PUSH_CERT=%s",
+                                sha1_to_hex(push_cert_sha1));
+               argv_array_pushf(&proc->env_array, "GIT_PUSH_CERT_SIGNER=%s",
                                 sigcheck.signer ? sigcheck.signer : "");
-               argv_array_pushf(&env, "GIT_PUSH_CERT_KEY=%s",
+               argv_array_pushf(&proc->env_array, "GIT_PUSH_CERT_KEY=%s",
                                 sigcheck.key ? sigcheck.key : "");
-               argv_array_pushf(&env, "GIT_PUSH_CERT_STATUS=%c", sigcheck.result);
+               argv_array_pushf(&proc->env_array, "GIT_PUSH_CERT_STATUS=%c",
+                                sigcheck.result);
                if (push_cert_nonce) {
-                       argv_array_pushf(&env, "GIT_PUSH_CERT_NONCE=%s", push_cert_nonce);
-                       argv_array_pushf(&env, "GIT_PUSH_CERT_NONCE_STATUS=%s", nonce_status);
+                       argv_array_pushf(&proc->env_array,
+                                        "GIT_PUSH_CERT_NONCE=%s",
+                                        push_cert_nonce);
+                       argv_array_pushf(&proc->env_array,
+                                        "GIT_PUSH_CERT_NONCE_STATUS=%s",
+                                        nonce_status);
                        if (nonce_status == NONCE_SLOP)
-                               argv_array_pushf(&env, "GIT_PUSH_CERT_NONCE_SLOP=%ld",
+                               argv_array_pushf(&proc->env_array,
+                                                "GIT_PUSH_CERT_NONCE_SLOP=%ld",
                                                 nonce_stamp_slop);
                }
-               proc->env = env.argv;
        }
 }
 
 typedef int (*feed_fn)(void *, const char **, size_t *);
 static int run_and_feed_hook(const char *hook_name, feed_fn feed, void *feed_state)
 {
-       struct child_process proc;
+       struct child_process proc = CHILD_PROCESS_INIT;
        struct async muxer;
        const char *argv[2];
        int code;
@@ -516,7 +523,6 @@ static int run_and_feed_hook(const char *hook_name, feed_fn feed, void *feed_sta
 
        argv[1] = NULL;
 
-       memset(&proc, 0, sizeof(proc));
        proc.argv = argv;
        proc.in = -1;
        proc.stdout_to_stderr = 1;
@@ -540,6 +546,8 @@ static int run_and_feed_hook(const char *hook_name, feed_fn feed, void *feed_sta
                return code;
        }
 
+       sigchain_push(SIGPIPE, SIG_IGN);
+
        while (1) {
                const char *buf;
                size_t n;
@@ -551,6 +559,9 @@ static int run_and_feed_hook(const char *hook_name, feed_fn feed, void *feed_sta
        close(proc.in);
        if (use_sideband)
                finish_async(&muxer);
+
+       sigchain_pop(SIGPIPE);
+
        return finish_command(&proc);
 }
 
@@ -602,7 +613,7 @@ static int run_receive_hook(struct command *commands, const char *hook_name,
 static int run_update_hook(struct command *cmd)
 {
        const char *argv[5];
-       struct child_process proc;
+       struct child_process proc = CHILD_PROCESS_INIT;
        int code;
 
        argv[0] = find_hook("update");
@@ -614,7 +625,6 @@ static int run_update_hook(struct command *cmd)
        argv[3] = sha1_to_hex(cmd->new_sha1);
        argv[4] = NULL;
 
-       memset(&proc, 0, sizeof(proc));
        proc.no_stdin = 1;
        proc.stdout_to_stderr = 1;
        proc.err = use_sideband ? -1 : 0;
@@ -727,7 +737,6 @@ static const char *update(struct command *cmd, struct shallow_info *si)
        const char *namespaced_name;
        unsigned char *old_sha1 = cmd->old_sha1;
        unsigned char *new_sha1 = cmd->new_sha1;
-       struct ref_lock *lock;
 
        /* only refs/... are allowed */
        if (!starts_with(name, "refs/") || check_refname_format(name + 5, 0)) {
@@ -828,19 +837,28 @@ static const char *update(struct command *cmd, struct shallow_info *si)
                return NULL; /* good */
        }
        else {
+               struct strbuf err = STRBUF_INIT;
+               struct ref_transaction *transaction;
+
                if (shallow_update && si->shallow_ref[cmd->index] &&
                    update_shallow_ref(cmd, si))
                        return "shallow error";
 
-               lock = lock_any_ref_for_update(namespaced_name, old_sha1,
-                                              0, NULL);
-               if (!lock) {
-                       rp_error("failed to lock %s", name);
-                       return "failed to lock";
-               }
-               if (write_ref_sha1(lock, new_sha1, "push")) {
-                       return "failed to write"; /* error() already called */
+               transaction = ref_transaction_begin(&err);
+               if (!transaction ||
+                   ref_transaction_update(transaction, namespaced_name,
+                                          new_sha1, old_sha1, 0, 1, "push",
+                                          &err) ||
+                   ref_transaction_commit(transaction, &err)) {
+                       ref_transaction_free(transaction);
+
+                       rp_error("%s", err.buf);
+                       strbuf_release(&err);
+                       return "failed to update ref";
                }
+
+               ref_transaction_free(transaction);
+               strbuf_release(&err);
                return NULL; /* good */
        }
 }
@@ -850,8 +868,8 @@ static void run_update_post_hook(struct command *commands)
        struct command *cmd;
        int argc;
        const char **argv;
-       struct child_process proc;
-       char *hook;
+       struct child_process proc = CHILD_PROCESS_INIT;
+       const char *hook;
 
        hook = find_hook("post-update");
        for (argc = 0, cmd = commands; cmd; cmd = cmd->next) {
@@ -873,7 +891,6 @@ static void run_update_post_hook(struct command *commands)
        }
        argv[argc] = NULL;
 
-       memset(&proc, 0, sizeof(proc));
        proc.no_stdin = 1;
        proc.stdout_to_stderr = 1;
        proc.err = use_sideband ? -1 : 0;
@@ -897,7 +914,7 @@ static void check_aliased_update(struct command *cmd, struct string_list *list)
        int flag;
 
        strbuf_addf(&buf, "%s%s", get_git_namespace(), cmd->ref_name);
-       dst_name = resolve_ref_unsafe(buf.buf, sha1, 0, &flag);
+       dst_name = resolve_ref_unsafe(buf.buf, 0, sha1, &flag);
        strbuf_release(&buf);
 
        if (!(flag & REF_ISSYMREF))
@@ -1058,7 +1075,7 @@ static void execute_commands(struct command *commands,
        check_aliased_updates(commands);
 
        free(head_name_to_free);
-       head_name = head_name_to_free = resolve_refdup("HEAD", sha1, 0, NULL);
+       head_name = head_name_to_free = resolve_refdup("HEAD", 0, sha1, NULL);
 
        checked_connectivity = 1;
        for (cmd = commands; cmd; cmd = cmd->next) {
@@ -1219,11 +1236,10 @@ static const char *pack_lockfile;
 static const char *unpack(int err_fd, struct shallow_info *si)
 {
        struct pack_header hdr;
-       struct argv_array av = ARGV_ARRAY_INIT;
        const char *hdr_err;
        int status;
        char hdr_arg[38];
-       struct child_process child;
+       struct child_process child = CHILD_PROCESS_INIT;
        int fsck_objects = (receive_fsck_objects >= 0
                            ? receive_fsck_objects
                            : transfer_fsck_objects >= 0
@@ -1242,17 +1258,16 @@ static const char *unpack(int err_fd, struct shallow_info *si)
 
        if (si->nr_ours || si->nr_theirs) {
                alt_shallow_file = setup_temporary_shallow(si->shallow);
-               argv_array_pushl(&av, "--shallow-file", alt_shallow_file, NULL);
+               argv_array_push(&child.args, "--shallow-file");
+               argv_array_push(&child.args, alt_shallow_file);
        }
 
-       memset(&child, 0, sizeof(child));
        if (ntohl(hdr.hdr_entries) < unpack_limit) {
-               argv_array_pushl(&av, "unpack-objects", hdr_arg, NULL);
+               argv_array_pushl(&child.args, "unpack-objects", hdr_arg, NULL);
                if (quiet)
-                       argv_array_push(&av, "-q");
+                       argv_array_push(&child.args, "-q");
                if (fsck_objects)
-                       argv_array_push(&av, "--strict");
-               child.argv = av.argv;
+                       argv_array_push(&child.args, "--strict");
                child.no_stdout = 1;
                child.err = err_fd;
                child.git_cmd = 1;
@@ -1267,13 +1282,12 @@ static const char *unpack(int err_fd, struct shallow_info *si)
                if (gethostname(keep_arg + s, sizeof(keep_arg) - s))
                        strcpy(keep_arg + s, "localhost");
 
-               argv_array_pushl(&av, "index-pack",
+               argv_array_pushl(&child.args, "index-pack",
                                 "--stdin", hdr_arg, keep_arg, NULL);
                if (fsck_objects)
-                       argv_array_push(&av, "--strict");
+                       argv_array_push(&child.args, "--strict");
                if (fix_thin)
-                       argv_array_push(&av, "--fix-thin");
-               child.argv = av.argv;
+                       argv_array_push(&child.args, "--fix-thin");
                child.out = -1;
                child.err = err_fd;
                child.git_cmd = 1;