From 77a9745d19b2b308c1ce97d18053322d1471bc4c Mon Sep 17 00:00:00 2001 From: Stefan Beller Date: Thu, 14 Jul 2016 14:49:45 -0700 Subject: push options: {pre,post}-receive hook learns about push options The environment variable GIT_PUSH_OPTION_COUNT is set to the number of push options sent, and GIT_PUSH_OPTION_{0,1,..} is set to the transmitted option. The code is not executed as the push options are set to NULL, nor is the new capability advertised. There was some discussion back and forth how to present these push options to the user as there are some ways to do it: Keep all options in one environment variable ============================================ + easiest way to implement in Git - This would make things hard to parse correctly in the hook. Put the options in files instead, filenames are in GIT_PUSH_OPTION_FILES ====================================== + After a discussion about environment variables and shells, we may not want to put user data into an environment variable (see [1] for example). + We could transmit binaries, i.e. we're not bound to C strings as we are when using environment variables to the user. + Maybe easier to parse than constructing environment variable names GIT_PUSH_OPTION_{0,1,..} yourself - cleanup of the temporary files is hard to do reliably - we have race conditions with multiple clients pushing, hence we'd need to use mkstemp. That's not too bad, but still. Use environment variables, but restrict to key/value pairs ========================================================== (When the user pushes a push option `foo=bar`, we'd GIT_PUSH_OPTION_foo=bar) + very easy to parse for a simple model of push options - it's not sufficient for more elaborate models, e.g. it doesn't allow doubles (e.g. cc=reviewer@email) Present the options in different environment variables ====================================================== (This is implemented) * harder to parse as a user, but we have a sample hook for that. - doesn't allow binary files + allows the same option twice, i.e. is not restrictive about options, except for binary files. + doesn't clutter a remote directory with (possibly stale) temporary files As we first want to focus on getting simple strings to work reliably, we go with the last option for now. If we want to do transmission of binaries later, we can just attach a 'side-channel', e.g. "any push option that contains a '\0' is put into a file instead of the environment variable and we'd have new GIT_PUSH_OPTION_FILES, GIT_PUSH_OPTION_FILENAME_{0,1,..} environment variables". [1] 'Shellshock' https://lwn.net/Articles/614218/ Signed-off-by: Stefan Beller Signed-off-by: Junio C Hamano diff --git a/Documentation/githooks.txt b/Documentation/githooks.txt index d82e912..9565dc3 100644 --- a/Documentation/githooks.txt +++ b/Documentation/githooks.txt @@ -247,6 +247,15 @@ Both standard output and standard error output are forwarded to 'git send-pack' on the other end, so you can simply `echo` messages for the user. +The number of push options given on the command line of +`git push --push-option=...` can be read from the environment +variable `GIT_PUSH_OPTION_COUNT`, and the options themselves are +found in `GIT_PUSH_OPTION_0`, `GIT_PUSH_OPTION_1`,... +If it is negotiated to not use the push options phase, the +environment variables will not be set. If the client selects +to use push options, but doesn't transmit any, the count variable +will be set to zero, `GIT_PUSH_OPTION_COUNT=0`. + [[update]] update ~~~~~~ @@ -322,6 +331,15 @@ a sample script `post-receive-email` provided in the `contrib/hooks` directory in Git distribution, which implements sending commit emails. +The number of push options given on the command line of +`git push --push-option=...` can be read from the environment +variable `GIT_PUSH_OPTION_COUNT`, and the options themselves are +found in `GIT_PUSH_OPTION_0`, `GIT_PUSH_OPTION_1`,... +If it is negotiated to not use the push options phase, the +environment variables will not be set. If the client selects +to use push options, but doesn't transmit any, the count variable +will be set to zero, `GIT_PUSH_OPTION_COUNT=0`. + [[post-update]] post-update ~~~~~~~~~~~ diff --git a/builtin/receive-pack.c b/builtin/receive-pack.c index 15c323a..6cdd2c6 100644 --- a/builtin/receive-pack.c +++ b/builtin/receive-pack.c @@ -550,8 +550,16 @@ static void prepare_push_cert_sha1(struct child_process *proc) } } +struct receive_hook_feed_state { + struct command *cmd; + int skip_broken; + struct strbuf buf; + const struct string_list *push_options; +}; + 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) +static int run_and_feed_hook(const char *hook_name, feed_fn feed, + struct receive_hook_feed_state *feed_state) { struct child_process proc = CHILD_PROCESS_INIT; struct async muxer; @@ -567,6 +575,16 @@ static int run_and_feed_hook(const char *hook_name, feed_fn feed, void *feed_sta proc.argv = argv; proc.in = -1; proc.stdout_to_stderr = 1; + if (feed_state->push_options) { + int i; + for (i = 0; i < feed_state->push_options->nr; i++) + argv_array_pushf(&proc.env_array, + "GIT_PUSH_OPTION_%d=%s", i, + feed_state->push_options->items[i].string); + argv_array_pushf(&proc.env_array, "GIT_PUSH_OPTION_COUNT=%d", + feed_state->push_options->nr); + } else + argv_array_pushf(&proc.env_array, "GIT_PUSH_OPTION_COUNT"); if (use_sideband) { memset(&muxer, 0, sizeof(muxer)); @@ -606,12 +624,6 @@ static int run_and_feed_hook(const char *hook_name, feed_fn feed, void *feed_sta return finish_command(&proc); } -struct receive_hook_feed_state { - struct command *cmd; - int skip_broken; - struct strbuf buf; -}; - static int feed_receive_hook(void *state_, const char **bufp, size_t *sizep) { struct receive_hook_feed_state *state = state_; @@ -634,8 +646,10 @@ static int feed_receive_hook(void *state_, const char **bufp, size_t *sizep) return 0; } -static int run_receive_hook(struct command *commands, const char *hook_name, - int skip_broken) +static int run_receive_hook(struct command *commands, + const char *hook_name, + int skip_broken, + const struct string_list *push_options) { struct receive_hook_feed_state state; int status; @@ -646,6 +660,7 @@ static int run_receive_hook(struct command *commands, const char *hook_name, if (feed_receive_hook(&state, NULL, NULL)) return 0; state.cmd = commands; + state.push_options = push_options; status = run_and_feed_hook(hook_name, feed_receive_hook, &state); strbuf_release(&state.buf); return status; @@ -1316,7 +1331,8 @@ cleanup: static void execute_commands(struct command *commands, const char *unpacker_error, - struct shallow_info *si) + struct shallow_info *si, + const struct string_list *push_options) { struct command *cmd; unsigned char sha1[20]; @@ -1335,7 +1351,7 @@ static void execute_commands(struct command *commands, reject_updates_to_hidden(commands); - if (run_receive_hook(commands, "pre-receive", 0)) { + if (run_receive_hook(commands, "pre-receive", 0, push_options)) { for (cmd = commands; cmd; cmd = cmd->next) { if (!cmd->error_string) cmd->error_string = "pre-receive hook declined"; @@ -1756,6 +1772,7 @@ int cmd_receive_pack(int argc, const char **argv, const char *prefix) if ((commands = read_head_info(&shallow)) != NULL) { const char *unpack_status = NULL; + struct string_list push_options = STRING_LIST_INIT_DUP; prepare_shallow_info(&si, &shallow); if (!si.nr_ours && !si.nr_theirs) @@ -1764,13 +1781,17 @@ int cmd_receive_pack(int argc, const char **argv, const char *prefix) unpack_status = unpack_with_sideband(&si); update_shallow_info(commands, &si, &ref); } - execute_commands(commands, unpack_status, &si); + execute_commands(commands, unpack_status, &si, + &push_options); if (pack_lockfile) unlink_or_warn(pack_lockfile); if (report_status) report(commands, unpack_status); - run_receive_hook(commands, "post-receive", 1); + run_receive_hook(commands, "post-receive", 1, + &push_options); run_update_post_hook(commands); + if (push_options.nr) + string_list_clear(&push_options, 0); if (auto_gc) { const char *argv_gc_auto[] = { "gc", "--auto", "--quiet", NULL, diff --git a/templates/hooks--pre-receive.sample b/templates/hooks--pre-receive.sample new file mode 100644 index 0000000..a1fd29e --- /dev/null +++ b/templates/hooks--pre-receive.sample @@ -0,0 +1,24 @@ +#!/bin/sh +# +# An example hook script to make use of push options. +# The example simply echoes all push options that start with 'echoback=' +# and rejects all pushes when the "reject" push option is used. +# +# To enable this hook, rename this file to "pre-receive". + +if test -n "$GIT_PUSH_OPTION_COUNT" +then + i=0 + while test "$i" -lt "$GIT_PUSH_OPTION_COUNT" + do + eval "value=\$GIT_PUSH_OPTION_$i" + case "$value" in + echoback=*) + echo "echo from the pre-receive-hook: ${value#*=}" >&2 + ;; + reject) + exit 1 + esac + i=$((i + 1)) + done +fi -- cgit v0.10.2-6-g49f6 From c714e45f87301562b940e3621431ed7f7fbd16e5 Mon Sep 17 00:00:00 2001 From: Stefan Beller Date: Thu, 14 Jul 2016 14:49:46 -0700 Subject: receive-pack: implement advertising and receiving push options The pre/post receive hook may be interested in more information from the user. This information can be transmitted when both client and server support the "push-options" capability, which when used is a phase directly after update commands ended by a flush pkt. Similar to the atomic option, the server capability can be disabled via the `receive.advertisePushOptions` config variable. While documenting this, fix a nit in the `receive.advertiseAtomic` wording. Signed-off-by: Stefan Beller Signed-off-by: Junio C Hamano diff --git a/Documentation/config.txt b/Documentation/config.txt index e208af1..25b5db1 100644 --- a/Documentation/config.txt +++ b/Documentation/config.txt @@ -2410,8 +2410,13 @@ rebase.instructionFormat receive.advertiseAtomic:: By default, git-receive-pack will advertise the atomic push - capability to its clients. If you don't want to this capability - to be advertised, set this variable to false. + capability to its clients. If you don't want to advertise this + capability, set this variable to false. + +receive.advertisePushOptions:: + By default, git-receive-pack will advertise the push options + capability to its clients. If you don't want to advertise this + capability, set this variable to false. receive.autogc:: By default, git-receive-pack will run "git-gc --auto" after diff --git a/Documentation/technical/pack-protocol.txt b/Documentation/technical/pack-protocol.txt index 8b36343..7a2ed30 100644 --- a/Documentation/technical/pack-protocol.txt +++ b/Documentation/technical/pack-protocol.txt @@ -454,7 +454,8 @@ The reference discovery phase is done nearly the same way as it is in the fetching protocol. Each reference obj-id and name on the server is sent in packet-line format to the client, followed by a flush-pkt. The only real difference is that the capability listing is different - the only -possible values are 'report-status', 'delete-refs' and 'ofs-delta'. +possible values are 'report-status', 'delete-refs', 'ofs-delta' and +'push-options'. Reference Update Request and Packfile Transfer ---------------------------------------------- @@ -465,9 +466,10 @@ that it wants to update, it sends a line listing the obj-id currently on the server, the obj-id the client would like to update it to and the name of the reference. -This list is followed by a flush-pkt and then the packfile that should -contain all the objects that the server will need to complete the new -references. +This list is followed by a flush-pkt. Then the push options are transmitted +one per packet followed by another flush-pkt. After that the packfile that +should contain all the objects that the server will need to complete the new +references will be sent. ---- update-request = *shallow ( command-list | push-cert ) [packfile] diff --git a/Documentation/technical/protocol-capabilities.txt b/Documentation/technical/protocol-capabilities.txt index eaab6b4..4c28d3a 100644 --- a/Documentation/technical/protocol-capabilities.txt +++ b/Documentation/technical/protocol-capabilities.txt @@ -253,6 +253,15 @@ atomic pushes. If the pushing client requests this capability, the server will update the refs in one atomic transaction. Either all refs are updated or none. +push-options +------------ + +If the server sends the 'push-options' capability it is able to accept +push options after the update commands have been sent, but before the +packfile is streamed. If the pushing client requests this capability, +the server will pass the options to the pre- and post- receive hooks +that process this push request. + allow-tip-sha1-in-want ---------------------- diff --git a/builtin/receive-pack.c b/builtin/receive-pack.c index 6cdd2c6..3c9360a 100644 --- a/builtin/receive-pack.c +++ b/builtin/receive-pack.c @@ -44,10 +44,12 @@ static struct strbuf fsck_msg_types = STRBUF_INIT; static int receive_unpack_limit = -1; static int transfer_unpack_limit = -1; static int advertise_atomic_push = 1; +static int advertise_push_options; static int unpack_limit = 100; static int report_status; static int use_sideband; static int use_atomic; +static int use_push_options; static int quiet; static int prefer_ofs_delta = 1; static int auto_update_server_info; @@ -193,6 +195,11 @@ static int receive_pack_config(const char *var, const char *value, void *cb) return 0; } + if (strcmp(var, "receive.advertisepushoptions") == 0) { + advertise_push_options = git_config_bool(var, value); + return 0; + } + return git_default_config(var, value, cb); } @@ -211,6 +218,8 @@ static void show_ref(const char *path, const unsigned char *sha1) strbuf_addstr(&cap, " ofs-delta"); if (push_cert_nonce) strbuf_addf(&cap, " push-cert=%s", push_cert_nonce); + if (advertise_push_options) + strbuf_addstr(&cap, " push-options"); strbuf_addf(&cap, " agent=%s", git_user_agent_sanitized()); packet_write(1, "%s %s%c%s\n", sha1_to_hex(sha1), path, 0, cap.buf); @@ -1455,6 +1464,9 @@ static struct command *read_head_info(struct sha1_array *shallow) if (advertise_atomic_push && parse_feature_request(feature_list, "atomic")) use_atomic = 1; + if (advertise_push_options + && parse_feature_request(feature_list, "push-options")) + use_push_options = 1; } if (!strcmp(line, "push-cert")) { @@ -1487,6 +1499,21 @@ static struct command *read_head_info(struct sha1_array *shallow) return commands; } +static void read_push_options(struct string_list *options) +{ + while (1) { + char *line; + int len; + + line = packet_read_line(0, &len); + + if (!line) + break; + + string_list_append(options, line); + } +} + static const char *parse_pack_header(struct pack_header *hdr) { switch (read_pack_header(0, hdr)) { @@ -1774,6 +1801,9 @@ int cmd_receive_pack(int argc, const char **argv, const char *prefix) const char *unpack_status = NULL; struct string_list push_options = STRING_LIST_INIT_DUP; + if (use_push_options) + read_push_options(&push_options); + prepare_shallow_info(&si, &shallow); if (!si.nr_ours && !si.nr_theirs) shallow_update = 0; -- cgit v0.10.2-6-g49f6 From f6a4e61fbb647928d615a0befaec163a5d2bf4af Mon Sep 17 00:00:00 2001 From: Stefan Beller Date: Thu, 14 Jul 2016 14:49:47 -0700 Subject: push: accept push options This implements everything that is required on the client side to make use of push options from the porcelain push command. Signed-off-by: Stefan Beller Signed-off-by: Junio C Hamano diff --git a/Documentation/git-push.txt b/Documentation/git-push.txt index 19f46b6..e960258 100644 --- a/Documentation/git-push.txt +++ b/Documentation/git-push.txt @@ -11,7 +11,7 @@ SYNOPSIS [verse] 'git push' [--all | --mirror | --tags] [--follow-tags] [--atomic] [-n | --dry-run] [--receive-pack=] [--repo=] [-f | --force] [-d | --delete] [--prune] [-v | --verbose] - [-u | --set-upstream] + [-u | --set-upstream] [--push-option=] [--[no-]signed|--sign=(true|false|if-asked)] [--force-with-lease[=[:]]] [--no-verify] [ [...]] @@ -156,6 +156,12 @@ already exists on the remote side. Either all refs are updated, or on error, no refs are updated. If the server does not support atomic pushes the push will fail. +-o:: +--push-option:: + Transmit the given string to the server, which passes them to + the pre-receive as well as the post-receive hook. The given string + must not contain a NUL or LF character. + --receive-pack=:: --exec=:: Path to the 'git-receive-pack' program on the remote diff --git a/builtin/push.c b/builtin/push.c index 4e9e4db..3bb9d6b 100644 --- a/builtin/push.c +++ b/builtin/push.c @@ -353,7 +353,8 @@ static int push_with_options(struct transport *transport, int flags) return 1; } -static int do_push(const char *repo, int flags) +static int do_push(const char *repo, int flags, + const struct string_list *push_options) { int i, errs; struct remote *remote = pushremote_get(repo); @@ -376,6 +377,9 @@ static int do_push(const char *repo, int flags) if (remote->mirror) flags |= (TRANSPORT_PUSH_MIRROR|TRANSPORT_PUSH_FORCE); + if (push_options->nr) + flags |= TRANSPORT_PUSH_OPTIONS; + if ((flags & TRANSPORT_PUSH_ALL) && refspec) { if (!strcmp(*refspec, "refs/tags/*")) return error(_("--all and --tags are incompatible")); @@ -406,13 +410,16 @@ static int do_push(const char *repo, int flags) for (i = 0; i < url_nr; i++) { struct transport *transport = transport_get(remote, url[i]); + if (flags & TRANSPORT_PUSH_OPTIONS) + transport->push_options = push_options; if (push_with_options(transport, flags)) errs++; } } else { struct transport *transport = transport_get(remote, NULL); - + if (flags & TRANSPORT_PUSH_OPTIONS) + transport->push_options = push_options; if (push_with_options(transport, flags)) errs++; } @@ -500,6 +507,9 @@ int cmd_push(int argc, const char **argv, const char *prefix) int push_cert = -1; int rc; const char *repo = NULL; /* default repository */ + static struct string_list push_options = STRING_LIST_INIT_DUP; + static struct string_list_item *item; + struct option options[] = { OPT__VERBOSITY(&verbosity), OPT_STRING( 0 , "repo", &repo, N_("repository"), N_("repository")), @@ -533,6 +543,7 @@ int cmd_push(int argc, const char **argv, const char *prefix) 0, "signed", &push_cert, "yes|no|if-asked", N_("GPG sign the push"), PARSE_OPT_OPTARG, option_parse_push_signed }, OPT_BIT(0, "atomic", &flags, N_("request atomic transaction on remote side"), TRANSPORT_PUSH_ATOMIC), + OPT_STRING_LIST('o', "push-option", &push_options, N_("server-specific"), N_("option to transmit")), OPT_SET_INT('4', "ipv4", &family, N_("use IPv4 addresses only"), TRANSPORT_FAMILY_IPV4), OPT_SET_INT('6', "ipv6", &family, N_("use IPv6 addresses only"), @@ -563,7 +574,11 @@ int cmd_push(int argc, const char **argv, const char *prefix) set_refspecs(argv + 1, argc - 1, repo); } - rc = do_push(repo, flags); + for_each_string_list_item(item, &push_options) + if (strchr(item->string, '\n')) + die(_("push options must not have new line characters")); + + rc = do_push(repo, flags, &push_options); if (rc == -1) usage_with_options(push_usage, options); else diff --git a/send-pack.c b/send-pack.c index 299d303..3a842ac 100644 --- a/send-pack.c +++ b/send-pack.c @@ -260,6 +260,7 @@ static int generate_push_cert(struct strbuf *req_buf, const char *push_cert_nonce) { const struct ref *ref; + struct string_list_item *item; char *signing_key = xstrdup(get_signing_key()); const char *cp, *np; struct strbuf cert = STRBUF_INIT; @@ -276,6 +277,9 @@ static int generate_push_cert(struct strbuf *req_buf, } if (push_cert_nonce[0]) strbuf_addf(&cert, "nonce %s\n", push_cert_nonce); + if (args->push_options) + for_each_string_list_item(item, args->push_options) + strbuf_addf(&cert, "push-option %s\n", item->string); strbuf_addstr(&cert, "\n"); for (ref = remote_refs; ref; ref = ref->next) { @@ -370,6 +374,8 @@ int send_pack(struct send_pack_args *args, int agent_supported = 0; int use_atomic = 0; int atomic_supported = 0; + int use_push_options = 0; + int push_options_supported = 0; unsigned cmds_sent = 0; int ret; struct async demux; @@ -392,6 +398,8 @@ int send_pack(struct send_pack_args *args, args->use_thin_pack = 0; if (server_supports("atomic")) atomic_supported = 1; + if (server_supports("push-options")) + push_options_supported = 1; if (args->push_cert != SEND_PACK_PUSH_CERT_NEVER) { int len; @@ -418,6 +426,11 @@ int send_pack(struct send_pack_args *args, use_atomic = atomic_supported && args->atomic; + if (args->push_options && !push_options_supported) + die(_("the receiving end does not support push options")); + + use_push_options = push_options_supported && args->push_options; + if (status_report) strbuf_addstr(&cap_buf, " report-status"); if (use_sideband) @@ -426,6 +439,8 @@ int send_pack(struct send_pack_args *args, strbuf_addstr(&cap_buf, " quiet"); if (use_atomic) strbuf_addstr(&cap_buf, " atomic"); + if (use_push_options) + strbuf_addstr(&cap_buf, " push-options"); if (agent_supported) strbuf_addf(&cap_buf, " agent=%s", git_user_agent_sanitized()); @@ -512,6 +527,18 @@ int send_pack(struct send_pack_args *args, strbuf_release(&req_buf); strbuf_release(&cap_buf); + if (use_push_options) { + struct string_list_item *item; + struct strbuf sb = STRBUF_INIT; + + for_each_string_list_item(item, args->push_options) + packet_buf_write(&sb, "%s", item->string); + + write_or_die(out, sb.buf, sb.len); + packet_flush(out); + strbuf_release(&sb); + } + if (use_sideband && cmds_sent) { memset(&demux, 0, sizeof(demux)); demux.proc = sideband_demux; diff --git a/send-pack.h b/send-pack.h index 57f222a..67fc40f 100644 --- a/send-pack.h +++ b/send-pack.h @@ -1,6 +1,8 @@ #ifndef SEND_PACK_H #define SEND_PACK_H +#include "string-list.h" + /* Possible values for push_cert field in send_pack_args. */ #define SEND_PACK_PUSH_CERT_NEVER 0 #define SEND_PACK_PUSH_CERT_IF_ASKED 1 @@ -21,6 +23,7 @@ struct send_pack_args { push_cert:2, stateless_rpc:1, atomic:1; + const struct string_list *push_options; }; struct option; diff --git a/transport.c b/transport.c index 095e61f..0298be1 100644 --- a/transport.c +++ b/transport.c @@ -510,6 +510,7 @@ static int git_transport_push(struct transport *transport, struct ref *remote_re args.dry_run = !!(flags & TRANSPORT_PUSH_DRY_RUN); args.porcelain = !!(flags & TRANSPORT_PUSH_PORCELAIN); args.atomic = !!(flags & TRANSPORT_PUSH_ATOMIC); + args.push_options = transport->push_options; args.url = transport->url; if (flags & TRANSPORT_PUSH_CERT_ALWAYS) diff --git a/transport.h b/transport.h index c681408..6fe3485 100644 --- a/transport.h +++ b/transport.h @@ -48,6 +48,12 @@ struct transport { */ unsigned cloning : 1; + /* + * These strings will be passed to the {pre, post}-receive hook, + * on the remote side, if both sides support the push options capability. + */ + const struct string_list *push_options; + /** * Returns 0 if successful, positive if the option is not * recognized or is inapplicable, and negative if the option @@ -134,6 +140,7 @@ struct transport { #define TRANSPORT_PUSH_CERT_ALWAYS 2048 #define TRANSPORT_PUSH_CERT_IF_ASKED 4096 #define TRANSPORT_PUSH_ATOMIC 8192 +#define TRANSPORT_PUSH_OPTIONS 16384 #define TRANSPORT_SUMMARY_WIDTH (2 * DEFAULT_ABBREV + 3) #define TRANSPORT_SUMMARY(x) (int)(TRANSPORT_SUMMARY_WIDTH + strlen(x) - gettext_width(x)), (x) -- cgit v0.10.2-6-g49f6 From 3ac870300a7bb430341388a8f2ec465328986617 Mon Sep 17 00:00:00 2001 From: Stefan Beller Date: Thu, 14 Jul 2016 14:49:48 -0700 Subject: add a test for push options The functions `mk_repo_pair` as well as `test_refs` are borrowed from t5543-atomic-push, with additional hooks installed. Signed-off-by: Stefan Beller Signed-off-by: Junio C Hamano diff --git a/t/t5545-push-options.sh b/t/t5545-push-options.sh new file mode 100755 index 0000000..ea813b9 --- /dev/null +++ b/t/t5545-push-options.sh @@ -0,0 +1,103 @@ +#!/bin/sh + +test_description='pushing to a repository using push options' + +. ./test-lib.sh + +mk_repo_pair () { + rm -rf workbench upstream && + test_create_repo upstream && + test_create_repo workbench && + ( + cd upstream && + git config receive.denyCurrentBranch warn && + mkdir -p .git/hooks && + cat >.git/hooks/pre-receive <<-'EOF' && + #!/bin/sh + if test -n "$GIT_PUSH_OPTION_COUNT"; then + i=0 + >hooks/pre-receive.push_options + while test "$i" -lt "$GIT_PUSH_OPTION_COUNT"; do + eval "value=\$GIT_PUSH_OPTION_$i" + echo $value >>hooks/pre-receive.push_options + i=$((i + 1)) + done + fi + EOF + chmod u+x .git/hooks/pre-receive + + cat >.git/hooks/post-receive <<-'EOF' && + #!/bin/sh + if test -n "$GIT_PUSH_OPTION_COUNT"; then + i=0 + >hooks/post-receive.push_options + while test "$i" -lt "$GIT_PUSH_OPTION_COUNT"; do + eval "value=\$GIT_PUSH_OPTION_$i" + echo $value >>hooks/post-receive.push_options + i=$((i + 1)) + done + fi + EOF + chmod u+x .git/hooks/post-receive + ) && + ( + cd workbench && + git remote add up ../upstream + ) +} + +# Compare the ref ($1) in upstream with a ref value from workbench ($2) +# i.e. test_refs second HEAD@{2} +test_refs () { + test $# = 2 && + git -C upstream rev-parse --verify "$1" >expect && + git -C workbench rev-parse --verify "$2" >actual && + test_cmp expect actual +} + +test_expect_success 'one push option works for a single branch' ' + mk_repo_pair && + git -C upstream config receive.advertisePushOptions true && + ( + cd workbench && + test_commit one && + git push --mirror up && + test_commit two && + git push --push-option=asdf up master + ) && + test_refs master master && + echo "asdf" >expect && + test_cmp expect upstream/.git/hooks/pre-receive.push_options && + test_cmp expect upstream/.git/hooks/post-receive.push_options +' + +test_expect_success 'push option denied by remote' ' + mk_repo_pair && + git -C upstream config receive.advertisePushOptions false && + ( + cd workbench && + test_commit one && + git push --mirror up && + test_commit two && + test_must_fail git push --push-option=asdf up master + ) && + test_refs master HEAD@{1} +' + +test_expect_success 'two push options work' ' + mk_repo_pair && + git -C upstream config receive.advertisePushOptions true && + ( + cd workbench && + test_commit one && + git push --mirror up && + test_commit two && + git push --push-option=asdf --push-option="more structured text" up master + ) && + test_refs master master && + printf "asdf\nmore structured text\n" >expect && + test_cmp expect upstream/.git/hooks/pre-receive.push_options && + test_cmp expect upstream/.git/hooks/post-receive.push_options +' + +test_done -- cgit v0.10.2-6-g49f6