append .exe to provider name doing executable lookup on windows

Signed-off-by: Nicolas De Loof <nicolas.deloof@gmail.com>

pkg/compose/plugins.go

@@ -155,7 +155,7 @@ func (s *composeService) getPluginBinaryPath(provider string) (path string, err
 		path = plugin.Path
 	}
 	if manager.IsNotFound(err) {
-		path, err = exec.LookPath(provider)
+		path, err = exec.LookPath(executable(provider))
 	}
 	return path, err
 }

pkg/compose/plugins_windows.go

@@ -0,0 +1,23 @@
+//go:build windows
+
+/*
+   Copyright 2020 Docker Compose CLI authors
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
+package compose
+
+func executable(s string) string {
+	return s + ".exe"
+}

pkg/compose/suffix_unix.go

@@ -0,0 +1,23 @@
+//go:build !windows
+
+/*
+   Copyright 2020 Docker Compose CLI authors
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
+package compose
+
+func executable(s string) string {
+	return s
+}