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Merge branch 'jt/receive-pack-skip-connectivity-check'
"git receive-pack" optionally learns not to care about connectivity check, which can be useful when the repository arranges to ensure connectivity by some other means. * jt/receive-pack-skip-connectivity-check: builtin/receive-pack: add option to skip connectivity check t5410: test receive-pack connectivity check
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‎Documentation/git-receive-pack.adoc‎

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Original file line numberDiff line numberDiff line change
@@ -46,6 +46,18 @@ OPTIONS
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`$GIT_URL/info/refs?service=git-receive-pack` requests. See
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`--http-backend-info-refs` in linkgit:git-upload-pack[1].
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--skip-connectivity-check::
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Bypasses the connectivity checks that validate the existence of all
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objects in the transitive closure of reachable objects. This option is
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intended for server operators that want to implement their own object
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connectivity validation outside of Git. This is useful in such cases
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where the server-side knows additional information about how Git is
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being used and thus can rely on certain guarantees to more efficiently
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compute object connectivity that Git itself cannot make. Usage of this
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option without a reliable external mechanism to ensure full reachable
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object connectivity risks corrupting the repository and should not be
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used in the general case.
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PRE-RECEIVE HOOK
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----------------
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Before any ref is updated, if $GIT_DIR/hooks/pre-receive file exists

‎builtin/receive-pack.c‎

Lines changed: 22 additions & 18 deletions
Original file line numberDiff line numberDiff line change
@@ -81,6 +81,7 @@ static int prefer_ofs_delta = 1;
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static int auto_update_server_info;
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static int auto_gc = 1;
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static int reject_thin;
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static int skip_connectivity_check;
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static int stateless_rpc;
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static const char *service_dir;
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static const char *head_name;
@@ -1938,27 +1939,29 @@ static void execute_commands(struct command *commands,
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return;
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}
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1941-
if (use_sideband) {
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memset(&muxer, 0, sizeof(muxer));
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muxer.proc = copy_to_sideband;
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muxer.in = -1;
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if (!start_async(&muxer))
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err_fd = muxer.in;
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/* ...else, continue without relaying sideband */
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}
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if (!skip_connectivity_check) {
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if (use_sideband) {
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memset(&muxer, 0, sizeof(muxer));
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muxer.proc = copy_to_sideband;
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muxer.in = -1;
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if (!start_async(&muxer))
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err_fd = muxer.in;
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/* ...else, continue without relaying sideband */
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}
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data.cmds = commands;
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data.si = si;
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opt.err_fd = err_fd;
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opt.progress = err_fd && !quiet;
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opt.env = tmp_objdir_env(tmp_objdir);
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opt.exclude_hidden_refs_section = "receive";
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data.cmds = commands;
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data.si = si;
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opt.err_fd = err_fd;
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opt.progress = err_fd && !quiet;
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opt.env = tmp_objdir_env(tmp_objdir);
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opt.exclude_hidden_refs_section = "receive";
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if (check_connected(iterate_receive_command_list, &data, &opt))
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set_connectivity_errors(commands, si);
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if (check_connected(iterate_receive_command_list, &data, &opt))
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set_connectivity_errors(commands, si);
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1960-
if (use_sideband)
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finish_async(&muxer);
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if (use_sideband)
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finish_async(&muxer);
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}
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reject_updates_to_hidden(commands);
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@@ -2519,6 +2522,7 @@ int cmd_receive_pack(int argc,
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struct option options[] = {
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OPT__QUIET(&quiet, N_("quiet")),
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OPT_HIDDEN_BOOL(0, "skip-connectivity-check", &skip_connectivity_check, NULL),
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OPT_HIDDEN_BOOL(0, "stateless-rpc", &stateless_rpc, NULL),
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OPT_HIDDEN_BOOL(0, "http-backend-info-refs", &advertise_refs, NULL),
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OPT_ALIAS(0, "advertise-refs", "http-backend-info-refs"),

‎t/meson.build‎

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Original file line numberDiff line numberDiff line change
@@ -629,7 +629,7 @@ integration_tests = [
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't5407-post-rewrite-hook.sh',
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't5408-send-pack-stdin.sh',
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't5409-colorize-remote-messages.sh',
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't5410-receive-pack-alternates.sh',
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't5410-receive-pack.sh',
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't5411-proc-receive-hook.sh',
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't5500-fetch-pack.sh',
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't5501-fetch-push-alternates.sh',

‎t/t5410-receive-pack-alternates.sh‎

Lines changed: 0 additions & 44 deletions
This file was deleted.

‎t/t5410-receive-pack.sh‎

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Original file line numberDiff line numberDiff line change
@@ -0,0 +1,87 @@
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#!/bin/sh
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test_description='git receive-pack'
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GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
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export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
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. ./test-lib.sh
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test_expect_success 'setup' '
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test_commit base &&
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git clone -s --bare . fork &&
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git checkout -b public/branch main &&
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test_commit public &&
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git checkout -b private/branch main &&
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test_commit private
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'
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extract_haves () {
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depacketize | sed -n 's/^\([^ ][^ ]*\) \.have/\1/p'
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}
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test_expect_success 'with core.alternateRefsCommand' '
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write_script fork/alternate-refs <<-\EOF &&
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git --git-dir="$1" for-each-ref \
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--format="%(objectname)" \
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refs/heads/public/
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EOF
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test_config -C fork core.alternateRefsCommand ./alternate-refs &&
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git rev-parse public/branch >expect &&
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printf "0000" | git receive-pack fork >actual &&
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extract_haves <actual >actual.haves &&
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test_cmp expect actual.haves
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'
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test_expect_success 'with core.alternateRefsPrefixes' '
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test_config -C fork core.alternateRefsPrefixes "refs/heads/private" &&
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git rev-parse private/branch >expect &&
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printf "0000" | git receive-pack fork >actual &&
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extract_haves <actual >actual.haves &&
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test_cmp expect actual.haves
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'
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test_expect_success 'receive-pack missing objects fails connectivity check' '
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test_when_finished rm -rf repo remote.git setup.git &&
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git init repo &&
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git -C repo commit --allow-empty -m 1 &&
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git clone --bare repo setup.git &&
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git -C repo commit --allow-empty -m 2 &&
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52+
# Capture git-send-pack(1) output sent to git-receive-pack(1).
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git -C repo send-pack ../setup.git --all \
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--receive-pack="tee ${SQ}$(pwd)/out${SQ} | git-receive-pack" &&
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# Replay captured git-send-pack(1) output on new empty repository.
57+
git init --bare remote.git &&
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git receive-pack remote.git <out >actual 2>err &&
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test_grep "missing necessary objects" actual &&
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test_grep "fatal: Failed to traverse parents" err &&
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test_must_fail git -C remote.git cat-file -e $(git -C repo rev-parse HEAD)
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'
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test_expect_success 'receive-pack missing objects bypasses connectivity check' '
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test_when_finished rm -rf repo remote.git setup.git &&
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68+
git init repo &&
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git -C repo commit --allow-empty -m 1 &&
70+
git clone --bare repo setup.git &&
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git -C repo commit --allow-empty -m 2 &&
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73+
# Capture git-send-pack(1) output sent to git-receive-pack(1).
74+
git -C repo send-pack ../setup.git --all \
75+
--receive-pack="tee ${SQ}$(pwd)/out${SQ} | git-receive-pack" &&
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77+
# Replay captured git-send-pack(1) output on new empty repository.
78+
git init --bare remote.git &&
79+
git receive-pack --skip-connectivity-check remote.git <out >actual 2>err &&
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81+
test_grep ! "missing necessary objects" actual &&
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test_must_be_empty err &&
83+
git -C remote.git cat-file -e $(git -C repo rev-parse HEAD) &&
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test_must_fail git -C remote.git rev-list $(git -C repo rev-parse HEAD)
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'
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test_done

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