Merge branch 'js/maint-receive-pack-symref-alias'
* js/maint-receive-pack-symref-alias: t5516-fetch-push.sh: style cleanup receive-pack: detect aliased updates which can occur with symrefs receive-pack: switch global variable 'commands' to a parameter Conflicts: t/t5516-fetch-push.sh
This commit is contained in:
Junio C Hamano
commit
9215f76fb6
@ -9,6 +9,7 @@
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#include "object.h"
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#include "remote.h"
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#include "transport.h"
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#include "string-list.h"
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static const char receive_pack_usage[] = "git receive-pack <git-dir>";
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@ -129,13 +130,12 @@ static void write_head_info(void)
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struct command {
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struct command *next;
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const char *error_string;
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unsigned int skip_update;
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unsigned char old_sha1[20];
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unsigned char new_sha1[20];
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char ref_name[FLEX_ARRAY]; /* more */
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};
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static struct command *commands;
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static const char pre_receive_hook[] = "hooks/pre-receive";
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static const char post_receive_hook[] = "hooks/post-receive";
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@ -188,7 +188,7 @@ static int copy_to_sideband(int in, int out, void *arg)
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return 0;
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}
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static int run_receive_hook(const char *hook_name)
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static int run_receive_hook(struct command *commands, const char *hook_name)
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{
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static char buf[sizeof(commands->old_sha1) * 2 + PATH_MAX + 4];
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struct command *cmd;
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@ -447,15 +447,15 @@ static const char *update(struct command *cmd)
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static char update_post_hook[] = "hooks/post-update";
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static void run_update_post_hook(struct command *cmd)
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static void run_update_post_hook(struct command *commands)
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{
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struct command *cmd_p;
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struct command *cmd;
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int argc;
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const char **argv;
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struct child_process proc;
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for (argc = 0, cmd_p = cmd; cmd_p; cmd_p = cmd_p->next) {
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if (cmd_p->error_string)
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for (argc = 0, cmd = commands; cmd; cmd = cmd->next) {
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if (cmd->error_string)
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continue;
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argc++;
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}
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@ -464,12 +464,12 @@ static void run_update_post_hook(struct command *cmd)
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argv = xmalloc(sizeof(*argv) * (2 + argc));
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argv[0] = update_post_hook;
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for (argc = 1, cmd_p = cmd; cmd_p; cmd_p = cmd_p->next) {
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for (argc = 1, cmd = commands; cmd; cmd = cmd->next) {
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char *p;
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if (cmd_p->error_string)
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if (cmd->error_string)
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continue;
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p = xmalloc(strlen(cmd_p->ref_name) + 1);
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strcpy(p, cmd_p->ref_name);
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p = xmalloc(strlen(cmd->ref_name) + 1);
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strcpy(p, cmd->ref_name);
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argv[argc] = p;
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argc++;
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}
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@ -488,37 +488,92 @@ static void run_update_post_hook(struct command *cmd)
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}
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}
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static void execute_commands(const char *unpacker_error)
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static void check_aliased_update(struct command *cmd, struct string_list *list)
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{
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struct command *cmd = commands;
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struct string_list_item *item;
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struct command *dst_cmd;
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unsigned char sha1[20];
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char cmd_oldh[41], cmd_newh[41], dst_oldh[41], dst_newh[41];
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int flag;
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const char *dst_name = resolve_ref(cmd->ref_name, sha1, 0, &flag);
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if (!(flag & REF_ISSYMREF))
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return;
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if ((item = string_list_lookup(dst_name, list)) == NULL)
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return;
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cmd->skip_update = 1;
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dst_cmd = (struct command *) item->util;
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if (!hashcmp(cmd->old_sha1, dst_cmd->old_sha1) &&
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!hashcmp(cmd->new_sha1, dst_cmd->new_sha1))
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return;
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dst_cmd->skip_update = 1;
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strcpy(cmd_oldh, find_unique_abbrev(cmd->old_sha1, DEFAULT_ABBREV));
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strcat(cmd_newh, find_unique_abbrev(cmd->new_sha1, DEFAULT_ABBREV));
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strcpy(dst_oldh, find_unique_abbrev(dst_cmd->old_sha1, DEFAULT_ABBREV));
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strcat(dst_newh, find_unique_abbrev(dst_cmd->new_sha1, DEFAULT_ABBREV));
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rp_error("refusing inconsistent update between symref '%s' (%s..%s) and"
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" its target '%s' (%s..%s)",
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cmd->ref_name, cmd_oldh, cmd_newh,
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dst_cmd->ref_name, dst_oldh, dst_newh);
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cmd->error_string = dst_cmd->error_string =
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"inconsistent aliased update";
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}
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static void check_aliased_updates(struct command *commands)
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{
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struct command *cmd;
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struct string_list ref_list = { NULL, 0, 0, 0 };
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for (cmd = commands; cmd; cmd = cmd->next) {
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struct string_list_item *item =
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string_list_append(cmd->ref_name, &ref_list);
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item->util = (void *)cmd;
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}
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sort_string_list(&ref_list);
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for (cmd = commands; cmd; cmd = cmd->next)
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check_aliased_update(cmd, &ref_list);
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string_list_clear(&ref_list, 0);
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}
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static void execute_commands(struct command *commands, const char *unpacker_error)
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{
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struct command *cmd;
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unsigned char sha1[20];
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if (unpacker_error) {
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while (cmd) {
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for (cmd = commands; cmd; cmd = cmd->next)
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cmd->error_string = "n/a (unpacker error)";
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cmd = cmd->next;
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}
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return;
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}
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if (run_receive_hook(pre_receive_hook)) {
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while (cmd) {
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if (run_receive_hook(commands, pre_receive_hook)) {
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for (cmd = commands; cmd; cmd = cmd->next)
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cmd->error_string = "pre-receive hook declined";
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cmd = cmd->next;
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}
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return;
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}
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check_aliased_updates(commands);
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head_name = resolve_ref("HEAD", sha1, 0, NULL);
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while (cmd) {
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cmd->error_string = update(cmd);
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cmd = cmd->next;
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}
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for (cmd = commands; cmd; cmd = cmd->next)
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if (!cmd->skip_update)
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cmd->error_string = update(cmd);
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}
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static void read_head_info(void)
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static struct command *read_head_info(void)
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{
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struct command *commands = NULL;
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struct command **p = &commands;
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for (;;) {
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static char line[1000];
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@ -548,15 +603,14 @@ static void read_head_info(void)
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if (strstr(refname + reflen + 1, "side-band-64k"))
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use_sideband = LARGE_PACKET_MAX;
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}
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cmd = xmalloc(sizeof(struct command) + len - 80);
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cmd = xcalloc(1, sizeof(struct command) + len - 80);
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hashcpy(cmd->old_sha1, old_sha1);
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hashcpy(cmd->new_sha1, new_sha1);
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memcpy(cmd->ref_name, line + 82, len - 81);
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cmd->error_string = NULL;
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cmd->next = NULL;
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*p = cmd;
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p = &cmd->next;
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}
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return commands;
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}
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static const char *parse_pack_header(struct pack_header *hdr)
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@ -643,7 +697,7 @@ static const char *unpack(void)
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}
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}
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static void report(const char *unpack_status)
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static void report(struct command *commands, const char *unpack_status)
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{
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struct command *cmd;
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struct strbuf buf = STRBUF_INIT;
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@ -667,12 +721,12 @@ static void report(const char *unpack_status)
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strbuf_release(&buf);
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}
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static int delete_only(struct command *cmd)
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static int delete_only(struct command *commands)
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{
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while (cmd) {
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struct command *cmd;
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for (cmd = commands; cmd; cmd = cmd->next) {
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if (!is_null_sha1(cmd->new_sha1))
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return 0;
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cmd = cmd->next;
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}
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return 1;
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}
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@ -722,6 +776,7 @@ int cmd_receive_pack(int argc, const char **argv, const char *prefix)
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int stateless_rpc = 0;
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int i;
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char *dir = NULL;
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struct command *commands;
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argv++;
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for (i = 1; i < argc; i++) {
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@ -772,18 +827,17 @@ int cmd_receive_pack(int argc, const char **argv, const char *prefix)
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if (advertise_refs)
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return 0;
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read_head_info();
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if (commands) {
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if ((commands = read_head_info()) != NULL) {
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const char *unpack_status = NULL;
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if (!delete_only(commands))
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unpack_status = unpack();
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execute_commands(unpack_status);
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execute_commands(commands, unpack_status);
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if (pack_lockfile)
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unlink_or_warn(pack_lockfile);
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if (report_status)
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report(unpack_status);
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run_receive_hook(post_receive_hook);
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report(commands, unpack_status);
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run_receive_hook(commands, post_receive_hook);
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run_update_post_hook(commands);
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if (auto_gc) {
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const char *argv_gc_auto[] = {
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@ -64,13 +64,13 @@ check_push_result () {
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test_expect_success setup '
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: >path1 &&
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>path1 &&
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git add path1 &&
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test_tick &&
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git commit -a -m repo &&
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the_first_commit=$(git show-ref -s --verify refs/heads/master) &&
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: >path2 &&
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>path2 &&
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git add path2 &&
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test_tick &&
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git commit -a -m second &&
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@ -483,8 +483,10 @@ git config --remove-section remote.there
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test_expect_success 'push with dry-run' '
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mk_test heads/master &&
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(cd testrepo &&
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old_commit=$(git show-ref -s --verify refs/heads/master)) &&
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(
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cd testrepo &&
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old_commit=$(git show-ref -s --verify refs/heads/master)
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) &&
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git push --dry-run testrepo &&
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check_push_result $old_commit heads/master
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'
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@ -493,10 +495,13 @@ test_expect_success 'push updates local refs' '
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mk_test heads/master &&
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mk_child child &&
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(cd child &&
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(
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cd child &&
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git pull .. master &&
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git push &&
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test $(git rev-parse master) = $(git rev-parse remotes/origin/master))
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test $(git rev-parse master) = \
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$(git rev-parse remotes/origin/master)
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)
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'
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@ -506,10 +511,13 @@ test_expect_success 'push updates up-to-date local refs' '
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mk_child child1 &&
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mk_child child2 &&
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(cd child1 && git pull .. master && git push) &&
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(cd child2 &&
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(
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cd child2 &&
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git pull ../child1 master &&
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git push &&
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test $(git rev-parse master) = $(git rev-parse remotes/origin/master))
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test $(git rev-parse master) = \
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$(git rev-parse remotes/origin/master)
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)
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'
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@ -517,9 +525,11 @@ test_expect_success 'push preserves up-to-date packed refs' '
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mk_test heads/master &&
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mk_child child &&
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(cd child &&
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(
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cd child &&
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git push &&
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! test -f .git/refs/remotes/origin/master)
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! test -f .git/refs/remotes/origin/master
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)
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'
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@ -530,11 +540,13 @@ test_expect_success 'push does not update local refs on failure' '
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mkdir testrepo/.git/hooks &&
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echo "#!/no/frobnication/today" >testrepo/.git/hooks/pre-receive &&
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chmod +x testrepo/.git/hooks/pre-receive &&
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(cd child &&
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(
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cd child &&
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git pull .. master
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test_must_fail git push &&
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test $(git rev-parse master) != \
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$(git rev-parse remotes/origin/master))
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$(git rev-parse remotes/origin/master)
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)
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'
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@ -575,34 +587,41 @@ test_expect_success 'push --delete refuses src:dest refspecs' '
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test_expect_success 'warn on push to HEAD of non-bare repository' '
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mk_test heads/master
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(cd testrepo &&
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(
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cd testrepo &&
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git checkout master &&
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git config receive.denyCurrentBranch warn) &&
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git config receive.denyCurrentBranch warn
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) &&
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git push testrepo master 2>stderr &&
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grep "warning: updating the current branch" stderr
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'
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test_expect_success 'deny push to HEAD of non-bare repository' '
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mk_test heads/master
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(cd testrepo &&
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(
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cd testrepo &&
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git checkout master &&
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git config receive.denyCurrentBranch true) &&
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git config receive.denyCurrentBranch true
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) &&
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test_must_fail git push testrepo master
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'
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test_expect_success 'allow push to HEAD of bare repository (bare)' '
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mk_test heads/master
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(cd testrepo &&
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(
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cd testrepo &&
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git checkout master &&
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git config receive.denyCurrentBranch true &&
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git config core.bare true) &&
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git config core.bare true
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) &&
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git push testrepo master 2>stderr &&
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! grep "warning: updating the current branch" stderr
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'
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test_expect_success 'allow push to HEAD of non-bare repository (config)' '
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mk_test heads/master
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(cd testrepo &&
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(
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cd testrepo &&
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git checkout master &&
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git config receive.denyCurrentBranch false
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) &&
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@ -615,7 +634,8 @@ test_expect_success 'fetch with branches' '
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git branch second $the_first_commit &&
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git checkout second &&
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echo ".." > testrepo/.git/branches/branch1 &&
|
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(cd testrepo &&
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(
|
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cd testrepo &&
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git fetch branch1 &&
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r=$(git show-ref -s --verify refs/heads/branch1) &&
|
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test "z$r" = "z$the_commit" &&
|
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@ -627,7 +647,8 @@ test_expect_success 'fetch with branches' '
|
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test_expect_success 'fetch with branches containing #' '
|
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mk_empty &&
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echo "..#second" > testrepo/.git/branches/branch2 &&
|
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(cd testrepo &&
|
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(
|
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cd testrepo &&
|
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git fetch branch2 &&
|
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r=$(git show-ref -s --verify refs/heads/branch2) &&
|
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test "z$r" = "z$the_first_commit" &&
|
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@ -641,7 +662,8 @@ test_expect_success 'push with branches' '
|
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git checkout second &&
|
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echo "testrepo" > .git/branches/branch1 &&
|
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git push branch1 &&
|
||||
(cd testrepo &&
|
||||
(
|
||||
cd testrepo &&
|
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r=$(git show-ref -s --verify refs/heads/master) &&
|
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test "z$r" = "z$the_first_commit" &&
|
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test 1 = $(git for-each-ref refs/heads | wc -l)
|
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@ -652,7 +674,8 @@ test_expect_success 'push with branches containing #' '
|
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mk_empty &&
|
||||
echo "testrepo#branch3" > .git/branches/branch2 &&
|
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git push branch2 &&
|
||||
(cd testrepo &&
|
||||
(
|
||||
cd testrepo &&
|
||||
r=$(git show-ref -s --verify refs/heads/branch3) &&
|
||||
test "z$r" = "z$the_first_commit" &&
|
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test 1 = $(git for-each-ref refs/heads | wc -l)
|
||||
@ -660,6 +683,55 @@ test_expect_success 'push with branches containing #' '
|
||||
git checkout master
|
||||
'
|
||||
|
||||
test_expect_success 'push into aliased refs (consistent)' '
|
||||
mk_test heads/master &&
|
||||
mk_child child1 &&
|
||||
mk_child child2 &&
|
||||
(
|
||||
cd child1 &&
|
||||
git branch foo &&
|
||||
git symbolic-ref refs/heads/bar refs/heads/foo
|
||||
git config receive.denyCurrentBranch false
|
||||
) &&
|
||||
(
|
||||
cd child2 &&
|
||||
>path2 &&
|
||||
git add path2 &&
|
||||
test_tick &&
|
||||
git commit -a -m child2 &&
|
||||
git branch foo &&
|
||||
git branch bar &&
|
||||
git push ../child1 foo bar
|
||||
)
|
||||
'
|
||||
|
||||
test_expect_success 'push into aliased refs (inconsistent)' '
|
||||
mk_test heads/master &&
|
||||
mk_child child1 &&
|
||||
mk_child child2 &&
|
||||
(
|
||||
cd child1 &&
|
||||
git branch foo &&
|
||||
git symbolic-ref refs/heads/bar refs/heads/foo
|
||||
git config receive.denyCurrentBranch false
|
||||
) &&
|
||||
(
|
||||
cd child2 &&
|
||||
>path2 &&
|
||||
git add path2 &&
|
||||
test_tick &&
|
||||
git commit -a -m child2 &&
|
||||
git branch foo &&
|
||||
>path3 &&
|
||||
git add path3 &&
|
||||
test_tick &&
|
||||
git commit -a -m child2 &&
|
||||
git branch bar &&
|
||||
test_must_fail git push ../child1 foo bar 2>stderr &&
|
||||
grep "refusing inconsistent update" stderr
|
||||
)
|
||||
'
|
||||
|
||||
test_expect_success 'push --porcelain' '
|
||||
mk_empty &&
|
||||
echo >.git/foo "To testrepo" &&
|
||||
|
||||
Loading…
Reference in New Issue
Block a user