From fd4bd1ee6224e75f757d3003407770f518f0cfb7 Mon Sep 17 00:00:00 2001
From: Johannes Schindelin <johannes.schindelin@gmx.de>
Date: Mon, 28 Oct 2019 00:06:11 +0100
Subject: [PATCH] TO-SPLIT

A proof-of-concept how to test for `git push` via `git://`, intended as
a starter patch for https://github.com/git-for-windows/git/pull/2375/.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
---
 daemon.c               | 14 ++++++++++++++
 t/lib-git-daemon.sh    | 23 ++++++++++-------------
 t/t5700-protocol-v1.sh |  7 ++++++-
 3 files changed, 30 insertions(+), 14 deletions(-)

diff --git a/daemon.c b/daemon.c
index 9d2e0d20ef302a..c4d40e3404b6e5 100644
--- a/daemon.c
+++ b/daemon.c
@@ -15,6 +15,7 @@ static enum log_destination {
 	LOG_DESTINATION_STDERR = 1,
 	LOG_DESTINATION_SYSLOG = 2,
 } log_destination = LOG_DESTINATION_UNSET;
+static FILE *log_tee_file;
 static int verbose;
 static int reuseaddr;
 static int informative_errors;
@@ -88,6 +89,13 @@ static void logreport(int priority, const char *err, va_list params)
 		break;
 	}
 	case LOG_DESTINATION_STDERR:
+		if (log_tee_file) {
+			fprintf(log_tee_file, "[%"PRIuMAX"] ",
+				(uintmax_t)getpid());
+			vfprintf(log_tee_file, err, params);
+			fputc('\n', log_tee_file);
+			fflush(log_tee_file);
+		}
 		/*
 		 * Since stderr is set to buffered mode, the
 		 * logging of different processes will not overlap
@@ -1317,6 +1325,12 @@ int cmd_main(int argc, const char **argv)
 			} else if (!strcmp(v, "stderr")) {
 				log_destination = LOG_DESTINATION_STDERR;
 				continue;
+			} else if (skip_prefix(v, "tee:", &v)) {
+				log_destination = LOG_DESTINATION_STDERR;
+				if (log_tee_file)
+					fclose(log_tee_file);
+				log_tee_file = xfopen(v, "a");
+				continue;
 			} else if (!strcmp(v, "none")) {
 				log_destination = LOG_DESTINATION_NONE;
 				continue;
diff --git a/t/lib-git-daemon.sh b/t/lib-git-daemon.sh
index fb8f8870801eb5..0b558bac060df3 100644
--- a/t/lib-git-daemon.sh
+++ b/t/lib-git-daemon.sh
@@ -21,11 +21,6 @@ then
 	test_done
 fi
 
-if test_have_prereq !PIPE
-then
-	test_skip_or_die GIT_TEST_GIT_DAEMON "file system does not support FIFOs"
-fi
-
 test_set_port LIB_GIT_DAEMON_PORT
 
 GIT_DAEMON_PID=
@@ -52,21 +47,23 @@ start_git_daemon() {
 	fi
 
 	say >&3 "Starting git daemon ..."
-	mkfifo git_daemon_output
 	${LIB_GIT_DAEMON_COMMAND:-git daemon} \
 		--listen=127.0.0.1 --port="$LIB_GIT_DAEMON_PORT" \
 		--reuseaddr --verbose --pid-file="$GIT_DAEMON_PIDFILE" \
+		--log-destination=tee:git_daemon_output \
 		--base-path="$GIT_DAEMON_DOCUMENT_ROOT_PATH" \
 		"$@" "$GIT_DAEMON_DOCUMENT_ROOT_PATH" \
-		>&3 2>git_daemon_output &
+		>&3 2>&4 &
 	GIT_DAEMON_PID=$!
-	{
-		read -r line <&7
-		printf "%s\n" "$line" >&4
-		cat <&7 >&4 &
-	} 7<git_daemon_output &&
+
+	# Wait for the first line in the output
+	while test ! -s git_daemon_output
+	do
+		sleep 1
+	done
 
 	# Check expected output
+	read -r line <git_daemon_output
 	if test x"$(expr "$line" : "\[[0-9]*\] \(.*\)")" != x"Ready to rumble"
 	then
 		kill "$GIT_DAEMON_PID"
@@ -88,7 +85,7 @@ stop_git_daemon() {
 	kill "$GIT_DAEMON_PID"
 	wait "$GIT_DAEMON_PID" >&3 2>&4
 	ret=$?
-	if ! test_match_signal 15 $ret
+	if ! test_match_signal 15 $ret && test 127 != $ret
 	then
 		error "git daemon exited with status: $ret"
 	fi
diff --git a/t/t5700-protocol-v1.sh b/t/t5700-protocol-v1.sh
index 7c9511c593c175..fc726b3db69624 100755
--- a/t/t5700-protocol-v1.sh
+++ b/t/t5700-protocol-v1.sh
@@ -67,6 +67,11 @@ test_expect_success 'pull with git:// using protocol v1' '
 test_expect_success 'push with git:// using protocol v1' '
 	test_commit -C daemon_child three &&
 
+	if test_have_prereq MINGW
+	then
+		test_config -C daemon_child sendpack.sideband false
+	fi &&
+
 	# Push to another branch, as the target repository has the
 	# master branch checked out and we cannot push into it.
 	GIT_TRACE_PACKET=1 git -C daemon_child -c protocol.version=1 \
@@ -169,7 +174,7 @@ test_expect_success 'create repo to be served by ssh:// transport' '
 
 test_expect_success 'clone with ssh:// using protocol v1' '
 	GIT_TRACE_PACKET=1 git -c protocol.version=1 \
-		clone "ssh://myhost:$(pwd)/ssh_parent" ssh_child 2>log &&
+		clone "ssh://myhost:$PWD/ssh_parent" ssh_child 2>log &&
 	expect_ssh git-upload-pack &&
 
 	git -C ssh_child log -1 --format=%s >actual &&