From: Christian Couder <christian.couder@gmail.com>
To: git@vger.kernel.org
Cc: Junio C Hamano <gitster@pobox.com>, Jeff King <peff@peff.net>,
Ben Peart <Ben.Peart@microsoft.com>,
Jonathan Tan <jonathantanmy@google.com>,
Nguyen Thai Ngoc Duy <pclouds@gmail.com>,
Mike Hommey <mh@glandium.org>,
Lars Schneider <larsxschneider@gmail.com>,
Eric Wong <e@80x24.org>,
Christian Couder <chriscool@tuxfamily.org>,
Jeff Hostetler <jeffhost@microsoft.com>
Subject: [PATCH 34/40] Add t0460 to test passing git objects
Date: Wed, 3 Jan 2018 17:33:57 +0100 [thread overview]
Message-ID: <20180103163403.11303-35-chriscool@tuxfamily.org> (raw)
In-Reply-To: <20180103163403.11303-1-chriscool@tuxfamily.org>
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
---
t/t0460-read-object-git.sh | 28 +++++++++++++++++
t/t0460/read-object-git | 78 ++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 106 insertions(+)
create mode 100755 t/t0460-read-object-git.sh
create mode 100755 t/t0460/read-object-git
diff --git a/t/t0460-read-object-git.sh b/t/t0460-read-object-git.sh
new file mode 100755
index 0000000000..2873b445f3
--- /dev/null
+++ b/t/t0460-read-object-git.sh
@@ -0,0 +1,28 @@
+#!/bin/sh
+
+test_description='tests for long running read-object process passing git objects'
+
+. ./test-lib.sh
+
+PATH="$PATH:$TEST_DIRECTORY/t0460"
+
+test_expect_success 'setup host repo with a root commit' '
+ test_commit zero &&
+ hash1=$(git ls-tree HEAD | grep zero.t | cut -f1 | cut -d\ -f3)
+'
+
+HELPER="read-object-git"
+
+test_expect_success 'blobs can be retrieved from the host repo' '
+ git init guest-repo &&
+ (cd guest-repo &&
+ git config odb.magic.subprocessCommand "$HELPER" &&
+ git cat-file blob "$hash1" >/dev/null)
+'
+
+test_expect_success 'invalid blobs generate errors' '
+ cd guest-repo &&
+ test_must_fail git cat-file blob "invalid"
+'
+
+test_done
diff --git a/t/t0460/read-object-git b/t/t0460/read-object-git
new file mode 100755
index 0000000000..4b3ca0948b
--- /dev/null
+++ b/t/t0460/read-object-git
@@ -0,0 +1,78 @@
+#!/usr/bin/perl
+#
+# Example implementation for the Git read-object protocol version 1
+# See Documentation/technical/read-object-protocol.txt
+#
+# Allows you to test the ability for blobs to be pulled from a host git repo
+# "on demand." Called when git needs a blob it couldn't find locally due to
+# a lazy clone that only cloned the commits and trees.
+#
+# A lazy clone can be simulated via the following commands from the host repo
+# you wish to create a lazy clone of:
+#
+# cd /host_repo
+# git rev-parse HEAD
+# git init /guest_repo
+# git cat-file --batch-check --batch-all-objects | grep -v 'blob' |
+# cut -d' ' -f1 | git pack-objects /e/guest_repo/.git/objects/pack/noblobs
+# cd /guest_repo
+# git config core.virtualizeobjects true
+# git reset --hard <sha from rev-parse call above>
+#
+# Please note, this sample is a minimal skeleton. No proper error handling
+# was implemented.
+#
+
+use 5.008;
+use lib (split(/:/, $ENV{GITPERLLIB}));
+use strict;
+use warnings;
+use Git::Packet;
+
+#
+# Point $DIR to the folder where your host git repo is located so we can pull
+# missing objects from it
+#
+my $DIR = "../.git/";
+
+packet_initialize("git-read-object", 1);
+
+my %remote_caps = packet_read_and_check_capabilities("get_git_obj");
+packet_check_and_write_capabilities(\%remote_caps, "get_git_obj");
+
+while (1) {
+ my ($res, $command) = packet_txt_read();
+
+ if ( $res == -1 ) {
+ exit 0;
+ }
+
+ $command =~ s/^command=//;
+
+ if ( $command eq "init" ) {
+ packet_bin_read();
+
+ packet_txt_write("status=success");
+ packet_flush();
+ } elsif ( $command eq "get_git_obj" ) {
+ my ($sha1) = packet_txt_read() =~ /^sha1=([0-9a-f]{40})$/;
+ packet_bin_read();
+
+ my $path = $sha1;
+ $path =~ s{..}{$&/};
+ $path = $DIR . "/objects/" . $path;
+
+ my $contents = do {
+ local $/;
+ open my $fh, $path or die "Can't open '$path': $!";
+ <$fh>
+ };
+
+ packet_bin_write($contents);
+ packet_flush();
+ packet_txt_write("status=success");
+ packet_flush();
+ } else {
+ die "bad command '$command'";
+ }
+}
--
2.16.0.rc0.16.g82191dbc6c.dirty
next prev parent reply other threads:[~2018-01-03 16:35 UTC|newest]
Thread overview: 51+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-03 16:33 [PATCH 00/40] Promisor remotes and external ODB support Christian Couder
2018-01-03 16:33 ` [PATCH 01/40] Add initial external odb support Christian Couder
2018-01-04 19:59 ` Jeff Hostetler
2018-01-15 14:34 ` Christian Couder
2018-01-03 16:33 ` [PATCH 02/40] Add GIT_NO_EXTERNAL_ODB env variable Christian Couder
2018-01-03 16:33 ` [PATCH 03/40] external-odb: add has_external_odb() Christian Couder
2018-01-03 16:33 ` [PATCH 04/40] fsck: introduce promisor objects Christian Couder
2018-01-03 16:33 ` [PATCH 05/40] fsck: support refs pointing to " Christian Couder
2018-01-03 16:33 ` [PATCH 06/40] fsck: support referenced " Christian Couder
2018-01-03 16:33 ` [PATCH 07/40] fsck: support promisor objects as CLI argument Christian Couder
2018-01-03 16:33 ` [PATCH 08/40] index-pack: refactor writing of .keep files Christian Couder
2018-01-03 16:33 ` [PATCH 09/40] introduce fetch-object: fetch one promisor object Christian Couder
2018-01-03 16:33 ` [PATCH 10/40] external-odb: implement external_odb_get_direct Christian Couder
2018-01-04 17:44 ` Jeff Hostetler
2018-01-15 14:47 ` Christian Couder
2018-01-03 16:33 ` [PATCH 11/40] sha1_file: support lazily fetching missing objects Christian Couder
2018-01-03 16:33 ` [PATCH 12/40] rev-list: support termination at promisor objects Christian Couder
2018-01-03 16:33 ` [PATCH 13/40] gc: do not repack promisor packfiles Christian Couder
2018-01-03 16:33 ` [PATCH 14/40] sha1_file: prepare for external odbs Christian Couder
2018-01-04 18:00 ` Jeff Hostetler
2018-01-16 7:23 ` Christian Couder
2018-01-03 16:33 ` [PATCH 15/40] external-odb: add script mode support Christian Couder
2018-01-04 19:55 ` Jeff Hostetler
2018-03-19 13:15 ` Christian Couder
2018-01-03 16:33 ` [PATCH 16/40] odb-helper: add 'enum odb_helper_type' Christian Couder
2018-01-03 16:33 ` [PATCH 17/40] odb-helper: add odb_helper_init() to send 'init' instruction Christian Couder
2018-01-03 16:33 ` [PATCH 18/40] t0400: add 'put_raw_obj' instruction to odb-helper script Christian Couder
2018-01-03 16:33 ` [PATCH 19/40] external odb: add 'put_raw_obj' support Christian Couder
2018-01-03 16:33 ` [PATCH 20/40] external-odb: accept only blobs for now Christian Couder
2018-01-03 16:33 ` [PATCH 21/40] t0400: add test for external odb write support Christian Couder
2018-01-03 16:33 ` [PATCH 22/40] Add t0410 to test external ODB transfer Christian Couder
2018-01-03 16:33 ` [PATCH 23/40] lib-httpd: pass config file to start_httpd() Christian Couder
2018-01-03 16:33 ` [PATCH 24/40] lib-httpd: add upload.sh Christian Couder
2018-01-03 16:33 ` [PATCH 25/40] lib-httpd: add list.sh Christian Couder
2018-01-03 16:33 ` [PATCH 26/40] lib-httpd: add apache-e-odb.conf Christian Couder
2018-01-03 16:33 ` [PATCH 27/40] odb-helper: add odb_helper_get_raw_object() Christian Couder
2018-01-03 16:33 ` [PATCH 28/40] pack-objects: don't pack objects in external odbs Christian Couder
2018-01-04 20:54 ` Jeff Hostetler
2018-03-19 13:27 ` Christian Couder
2018-01-03 16:33 ` [PATCH 29/40] Add t0420 to test transfer to HTTP external odb Christian Couder
2018-01-03 16:33 ` [PATCH 30/40] external-odb: add 'get_direct' support Christian Couder
2018-01-03 16:33 ` [PATCH 31/40] odb-helper: add 'script_mode' to 'struct odb_helper' Christian Couder
2018-01-03 16:33 ` [PATCH 32/40] odb-helper: add init_object_process() Christian Couder
2018-01-03 16:33 ` [PATCH 33/40] Add t0450 to test 'get_direct' mechanism Christian Couder
2018-01-03 16:33 ` Christian Couder [this message]
2018-01-03 16:33 ` [PATCH 35/40] odb-helper: add put_object_process() Christian Couder
2018-01-03 16:33 ` [PATCH 36/40] Add t0470 to test passing raw objects Christian Couder
2018-01-03 16:34 ` [PATCH 37/40] odb-helper: add have_object_process() Christian Couder
2018-01-03 16:34 ` [PATCH 38/40] Add t0480 to test "have" capability and raw objects Christian Couder
2018-01-03 16:34 ` [PATCH 39/40] external-odb: use 'odb=magic' attribute to mark odb blobs Christian Couder
2018-01-03 16:34 ` [PATCH 40/40] Add Documentation/technical/external-odb.txt Christian Couder
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