From: Jeff Hostetler <jeffh...@microsoft.com>
Create a test-tool helper to create the server side of
a windows named pipe, wait for a client connection, and
copy data written to the pipe to stdout.
Create t0051 test to route GIT_TRACE output of a command
to a named pipe using the above test-tool helper.
Signed-off-by: Jeff Hostetler <jeffh...@microsoft.com>
---
Makefile | 1 +
t/helper/test-tool.c | 3 ++
t/helper/test-tool.h | 3 ++
t/helper/test-windows-named-pipe.c | 72 ++++++++++++++++++++++++++++++
t/t0051-windows-named-pipe.sh | 17 +++++++
5 files changed, 96 insertions(+)
create mode 100644 t/helper/test-windows-named-pipe.c
create mode 100755 t/t0051-windows-named-pipe.sh
diff --git a/Makefile b/Makefile
index e4b503d259..b1b934d295 100644
--- a/Makefile
+++ b/Makefile
@@ -731,6 +731,7 @@ TEST_BUILTINS_OBJS += test-submodule-config.o
TEST_BUILTINS_OBJS += test-subprocess.o
TEST_BUILTINS_OBJS += test-urlmatch-normalization.o
TEST_BUILTINS_OBJS += test-wildmatch.o
+TEST_BUILTINS_OBJS += test-windows-named-pipe.o
TEST_BUILTINS_OBJS += test-write-cache.o
TEST_PROGRAMS_NEED_X += test-dump-fsmonitor
diff --git a/t/helper/test-tool.c b/t/helper/test-tool.c
index 805a45de9c..7a9764cd5c 100644
--- a/t/helper/test-tool.c
+++ b/t/helper/test-tool.c
@@ -41,6 +41,9 @@ static struct test_cmd cmds[] = {
{ "subprocess", cmd__subprocess },
{ "urlmatch-normalization", cmd__urlmatch_normalization },
{ "wildmatch", cmd__wildmatch },
+#ifdef GIT_WINDOWS_NATIVE
+ { "windows-named-pipe", cmd__windows_named_pipe },
+#endif
{ "write-cache", cmd__write_cache },
};
diff --git a/t/helper/test-tool.h b/t/helper/test-tool.h
index 7116ddfb94..01c34fe5e7 100644
--- a/t/helper/test-tool.h
+++ b/t/helper/test-tool.h
@@ -35,6 +35,9 @@ int cmd__submodule_config(int argc, const char **argv);
int cmd__subprocess(int argc, const char **argv);
int cmd__urlmatch_normalization(int argc, const char **argv);
int cmd__wildmatch(int argc, const char **argv);
+#ifdef GIT_WINDOWS_NATIVE
+int cmd__windows_named_pipe(int argc, const char **argv);
+#endif
int cmd__write_cache(int argc, const char **argv);
#endif
diff --git a/t/helper/test-windows-named-pipe.c
b/t/helper/test-windows-named-pipe.c
new file mode 100644
index 0000000000..b4b752b01a
--- /dev/null
+++ b/t/helper/test-windows-named-pipe.c
@@ -0,0 +1,72 @@
+#include "test-tool.h"
+#include "git-compat-util.h"
+#include "strbuf.h"
+
+#ifdef GIT_WINDOWS_NATIVE
+static const char *usage_string = "<pipe-filename>";
+
+#define TEST_BUFSIZE (4096)
+
+int cmd__windows_named_pipe(int argc, const char **argv)
+{
+ const char *filename;
+ struct strbuf pathname = STRBUF_INIT;
+ int err;
+ HANDLE h;
+ BOOL connected;
+ char buf[TEST_BUFSIZE + 1];
+
+ if (argc < 2)
+ goto print_usage;
+ filename = argv[1];
+ if (strchr(filename, '/') || strchr(filename, '\\'))
+ goto print_usage;
+ strbuf_addf(&pathname, "//./pipe/%s", filename);
+
+ /*
+ * Create a single instance of the server side of the named pipe.
+ * This will allow exactly one client instance to connect to it.
+ */
+ h = CreateNamedPipeA(
+ pathname.buf,
+ PIPE_ACCESS_INBOUND | FILE_FLAG_FIRST_PIPE_INSTANCE,
+ PIPE_TYPE_MESSAGE | PIPE_READMODE_MESSAGE | PIPE_WAIT,
+ PIPE_UNLIMITED_INSTANCES,
+ TEST_BUFSIZE, TEST_BUFSIZE, 0, NULL);
+ if (h == INVALID_HANDLE_VALUE) {
+ err = err_win_to_posix(GetLastError());
+ fprintf(stderr, "CreateNamedPipe failed: %s\n",
+ strerror(err));
+ return err;
+ }
+
+ connected = ConnectNamedPipe(h, NULL)
+ ? TRUE
+ : (GetLastError() == ERROR_PIPE_CONNECTED);
+ if (!connected) {
+ err = err_win_to_posix(GetLastError());
+ fprintf(stderr, "ConnectNamedPipe failed: %s\n",
+ strerror(err));
+ CloseHandle(h);
+ return err;
+ }
+
+ while (1) {
+ DWORD nbr;
+ BOOL success = ReadFile(h, buf, TEST_BUFSIZE, &nbr, NULL);
+ if (!success || nbr == 0)
+ break;
+ buf[nbr] = 0;
+
+ write(1, buf, nbr);
+ }
+
+ DisconnectNamedPipe(h);
+ CloseHandle(h);
+ return 0;
+
+print_usage:
+ fprintf(stderr, "usage: %s %s\n", argv[0], usage_string);
+ return 1;
+}
+#endif
diff --git a/t/t0051-windows-named-pipe.sh b/t/t0051-windows-named-pipe.sh
new file mode 100755
index 0000000000..10ac92d225
--- /dev/null
+++ b/t/t0051-windows-named-pipe.sh
@@ -0,0 +1,17 @@
+#!/bin/sh
+
+test_description='Windows named pipes'
+
+. ./test-lib.sh
+
+test_expect_success MINGW 'o_append write to named pipe' '
+ GIT_TRACE="$(pwd)/expect" git status >/dev/null 2>&1 &&
+ { test-tool windows-named-pipe t0051 >actual 2>&1 & } &&
+ pid=$! &&
+ sleep 1 &&
+ GIT_TRACE=//./pipe/t0051 git status >/dev/null 2>warning &&
+ wait $pid &&
+ test_cmp expect actual
+'
+
+test_done
--
gitgitgadget
