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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>,
	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>
Subject: [RFC/PATCH v4 35/49] Add t0460 to test passing git objects
Date: Tue, 20 Jun 2017 09:55:09 +0200	[thread overview]
Message-ID: <20170620075523.26961-36-chriscool@tuxfamily.org> (raw)
In-Reply-To: <20170620075523.26961-1-chriscool@tuxfamily.org>

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
---
 t/t0460-read-object-git.sh | 29 ++++++++++++++++++++
 t/t0460/read-object-git    | 67 ++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 96 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..d08b44cdce
--- /dev/null
+++ b/t/t0460-read-object-git.sh
@@ -0,0 +1,29 @@
+#!/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=$(git ls-tree HEAD | grep zero.t | cut -f1 | cut -d\  -f3)
+'
+
+HELPER="read-object-git"
+
+test_expect_success 'blobs can be retrieved from the host repo' '
+	git init guest-repo &&
+	(cd guest-repo &&
+	 git config odb.magic.command "$HELPER" &&
+	 git config odb.magic.fetchKind "gitObject" &&
+	 git cat-file blob "$hash1")
+'
+
+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..356a22cd4c
--- /dev/null
+++ b/t/t0460/read-object-git
@@ -0,0 +1,67 @@
+#!/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 $DIR = "../.git/";
+
+packet_initialize("git-read-object", 1);
+
+packet_read_and_check_capabilities("get");
+packet_write_capabilities("get");
+
+while (1) {
+	my ($command) = packet_txt_read() =~ /^command=([^=]+)$/;
+
+	if ( $command eq "get" ) {
+		my ($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'";
+	}
+}
-- 
2.13.1.565.gbfcd7a9048


  parent reply	other threads:[~2017-06-20  7:57 UTC|newest]

Thread overview: 64+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-06-20  7:54 [RFC/PATCH v4 00/49] Add initial experimental external ODB support Christian Couder
2017-06-20  7:54 ` [RFC/PATCH v4 01/49] builtin/clone: get rid of 'value' strbuf Christian Couder
2017-06-20  7:54 ` [RFC/PATCH v4 02/49] t0021/rot13-filter: refactor packet reading functions Christian Couder
2017-06-20  7:54 ` [RFC/PATCH v4 03/49] t0021/rot13-filter: improve 'if .. elsif .. else' style Christian Couder
2017-06-20  7:54 ` [RFC/PATCH v4 04/49] Add Git/Packet.pm from parts of t0021/rot13-filter.pl Christian Couder
2017-06-20  7:54 ` [RFC/PATCH v4 05/49] t0021/rot13-filter: use Git/Packet.pm Christian Couder
2017-06-20  7:54 ` [RFC/PATCH v4 06/49] Git/Packet.pm: improve error message Christian Couder
2017-06-20  7:54 ` [RFC/PATCH v4 07/49] Git/Packet.pm: add packet_initialize() Christian Couder
2017-06-23 18:55   ` Ben Peart
2017-06-20  7:54 ` [RFC/PATCH v4 08/49] Git/Packet: add capability functions Christian Couder
2017-06-20  7:54 ` [RFC/PATCH v4 09/49] Add initial external odb support Christian Couder
2017-06-23 19:49   ` Ben Peart
2017-06-20  7:54 ` [RFC/PATCH v4 10/49] external odb foreach Christian Couder
2017-06-20  7:54 ` [RFC/PATCH v4 11/49] t0400: add 'put' command to odb-helper script Christian Couder
2017-06-20  7:54 ` [RFC/PATCH v4 12/49] external odb: add write support Christian Couder
2017-06-20  7:54 ` [RFC/PATCH v4 13/49] external-odb: accept only blobs for now Christian Couder
2017-06-20  7:54 ` [RFC/PATCH v4 14/49] t0400: add test for external odb write support Christian Couder
2017-06-20  7:54 ` [RFC/PATCH v4 15/49] Add GIT_NO_EXTERNAL_ODB env variable Christian Couder
2017-06-20  7:54 ` [RFC/PATCH v4 16/49] Add t0410 to test external ODB transfer Christian Couder
2017-06-20  7:54 ` [RFC/PATCH v4 17/49] lib-httpd: pass config file to start_httpd() Christian Couder
2017-06-20  7:54 ` [RFC/PATCH v4 18/49] lib-httpd: add upload.sh Christian Couder
2017-06-20  7:54 ` [RFC/PATCH v4 19/49] lib-httpd: add list.sh Christian Couder
2017-06-20  7:54 ` [RFC/PATCH v4 20/49] lib-httpd: add apache-e-odb.conf Christian Couder
2017-06-20  7:54 ` [RFC/PATCH v4 21/49] odb-helper: add 'store_plain_objects' to 'struct odb_helper' Christian Couder
2017-06-20  7:54 ` [RFC/PATCH v4 22/49] pack-objects: don't pack objects in external odbs Christian Couder
2017-06-20  7:54 ` [RFC/PATCH v4 23/49] t0420: add test with HTTP external odb Christian Couder
2017-06-20  7:54 ` [RFC/PATCH v4 24/49] odb-helper: start fault in implementation Christian Couder
2017-06-20  7:54 ` [RFC/PATCH v4 25/49] external-odb: add external_odb_fault_in_object() Christian Couder
2017-06-20  7:55 ` [RFC/PATCH v4 26/49] odb-helper: add script_mode Christian Couder
2017-06-20  7:55 ` [RFC/PATCH v4 27/49] Documentation: add read-object-protocol.txt Christian Couder
2017-06-20  7:55 ` [RFC/PATCH v4 28/49] contrib: add long-running-read-object/example.pl Christian Couder
2017-06-20  7:55 ` [RFC/PATCH v4 29/49] Add t0410 to test read object mechanism Christian Couder
2017-06-20  7:55 ` [RFC/PATCH v4 30/49] odb-helper: add read_object_process() Christian Couder
2017-07-10 15:57   ` Ben Peart
2017-06-20  7:55 ` [RFC/PATCH v4 31/49] external-odb: add external_odb_get_capabilities() Christian Couder
2017-06-20  7:55 ` [RFC/PATCH v4 32/49] t04*: add 'get_cap' support to helpers Christian Couder
2017-06-20  7:55 ` [RFC/PATCH v4 33/49] odb-helper: call odb_helper_lookup() with 'have' capability Christian Couder
2017-06-20  7:55 ` [RFC/PATCH v4 34/49] odb-helper: fix odb_helper_fetch_object() for read_object Christian Couder
2017-06-20  7:55 ` Christian Couder [this message]
2017-06-20  7:55 ` [RFC/PATCH v4 36/49] odb-helper: add read_packetized_git_object_to_fd() Christian Couder
2017-06-20  7:55 ` [RFC/PATCH v4 37/49] odb-helper: add read_packetized_plain_object_to_fd() Christian Couder
2017-06-20  7:55 ` [RFC/PATCH v4 38/49] Add t0470 to test passing plain objects Christian Couder
2017-06-20  7:55 ` [RFC/PATCH v4 39/49] odb-helper: add write_object_process() Christian Couder
2017-06-20  7:55 ` [RFC/PATCH v4 40/49] Add t0480 to test "have" capability and plain objects Christian Couder
2017-06-20  7:55 ` [RFC/PATCH v4 41/49] external-odb: add external_odb_do_fetch_object() Christian Couder
2017-06-20  7:55 ` [RFC/PATCH v4 42/49] odb-helper: advertise 'have' capability Christian Couder
2017-06-20  7:55 ` [RFC/PATCH v4 43/49] odb-helper: advertise 'put' capability Christian Couder
2017-06-20  7:55 ` [RFC/PATCH v4 44/49] odb-helper: add have_object_process() Christian Couder
2017-06-20  7:55 ` [RFC/PATCH v4 45/49] clone: add initial param to write_remote_refs() Christian Couder
2017-06-20  7:55 ` [RFC/PATCH v4 46/49] clone: add --initial-refspec option Christian Couder
2017-06-20  7:55 ` [RFC/PATCH v4 47/49] clone: disable external odb before initial clone Christian Couder
2017-06-20  7:55 ` [RFC/PATCH v4 48/49] Add test for 'clone --initial-refspec' Christian Couder
2017-06-20  7:55 ` [RFC/PATCH v4 49/49] t: add t0430 to test cloning using bundles Christian Couder
2017-06-20 13:48 ` [RFC/PATCH v4 00/49] Add initial experimental external ODB support Christian Couder
2017-06-23 18:24 ` Ben Peart
2017-07-01 19:41   ` Christian Couder
2017-07-01 20:12     ` Christian Couder
2017-07-01 20:33     ` Junio C Hamano
2017-07-02  4:25       ` Christian Couder
2017-07-03 16:56         ` Junio C Hamano
2017-07-06 17:36     ` Ben Peart
2017-09-15 12:56       ` Christian Couder
2017-07-12 19:06 ` Jonathan Tan
2017-09-15 13:16   ` Christian Couder

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