support tinygo in 'extension init' command

Signed-off-by: mathetake <[email protected]>

Author: mathetake

data/extension/init/templates/tinygo/envoy.filters.http/default/go.mod

@@ -0,0 +1,8 @@
+module envoy.filters.http
+
+go 1.14
+
+require (
+	github.com/stretchr/testify v1.6.1
+	github.com/tetratelabs/proxy-wasm-go-sdk v0.0.1
+)

data/extension/init/templates/tinygo/envoy.filters.http/default/go.sum

@@ -0,0 +1,13 @@
+github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8=
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/testify v1.6.1 h1:hDPOHmpOpP40lSULcqw7IrRb/u7w6RpDC9399XyoNd0=
+github.com/stretchr/testify v1.6.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
+github.com/tetratelabs/proxy-wasm-go-sdk v0.0.1 h1:HMaVuxBYaqqPF324hbxg10OB8feQQwFU6EWlzh6LW8M=
+github.com/tetratelabs/proxy-wasm-go-sdk v0.0.1/go.mod h1:oriMCq3KvyEkgWVKr5B9DauvzpQ4Qy5eb32hxPa83Dw=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

data/extension/init/templates/tinygo/envoy.filters.http/default/main.go

@@ -0,0 +1,29 @@
+package main
+
+import (
+	"github.com/tetratelabs/proxy-wasm-go-sdk/proxywasm"
+	"github.com/tetratelabs/proxy-wasm-go-sdk/proxywasm/types"
+)
+
+func main() {
+	proxywasm.SetNewHttpContext(newContext)
+}
+
+type httpFilterContext struct {
+	id uint32
+	proxywasm.DefaultContext
+}
+
+func newContext(contextID uint32) proxywasm.HttpContext {
+	return &httpFilterContext{id: contextID}
+}
+
+func (ctx *httpFilterContext) OnHttpRequestHeaders(int, bool) types.Action {
+	// TODO:
+	return types.ActionContinue
+}
+
+func (ctx *httpFilterContext) OnHttpResponseHeaders(int, bool) types.Action {
+	// TODO:
+	return types.ActionContinue
+}

data/extension/init/templates/tinygo/envoy.filters.http/default/main_test.go

@@ -0,0 +1,47 @@
+package main
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+
+	"github.com/tetratelabs/proxy-wasm-go-sdk/proxytest"
+	"github.com/tetratelabs/proxy-wasm-go-sdk/proxywasm/types"
+)
+
+func TestHttpHeaders_OnHttpRequestHeaders(t *testing.T) {
+	host, done := proxytest.NewHttpFilterHost(newContext)
+	defer done()
+	id := host.InitContext()
+
+	hs := [][2]string{
+		{"key1", "value1"},
+		{"key2", "value2"},
+	}
+	host.PutRequestHeaders(id, hs) // call OnHttpRequestHeaders
+
+	logs := host.GetLogs(types.LogLevelInfo)
+	require.Greater(t, len(logs), 1)
+
+	assert.Equal(t, "request header: key2: value2", logs[len(logs)-1])
+	assert.Equal(t, "request header: key1: value1", logs[len(logs)-2])
+}
+
+func TestHttpHeaders_OnHttpResponseHeaders(t *testing.T) {
+	host, done := proxytest.NewHttpFilterHost(newContext)
+	defer done()
+	id := host.InitContext()
+
+	hs := [][2]string{
+		{"key1", "value1"},
+		{"key2", "value2"},
+	}
+	host.PutResponseHeaders(id, hs) // call OnHttpResponseHeaders
+
+	logs := host.GetLogs(types.LogLevelInfo)
+	require.Greater(t, len(logs), 1)
+
+	assert.Equal(t, "response header: key2: value2", logs[len(logs)-1])
+	assert.Equal(t, "response header: key1: value1", logs[len(logs)-2])
+}

go.mod

@@ -5,14 +5,12 @@ go 1.13
 require (
 	bitbucket.org/creachadair/shell v0.0.6
 	github.com/StackExchange/wmi v0.0.0-20190523213315-cbe66965904d // indirect
+	github.com/asaskevich/govalidator v0.0.0-20190424111038-f61b66f89f4a
 	github.com/docker/distribution v2.7.1+incompatible
 	github.com/envoyproxy/go-control-plane v0.9.5
 	github.com/ghodss/yaml v1.0.0
-	github.com/asaskevich/govalidator v0.0.0-20190424111038-f61b66f89f4a
 	github.com/go-ole/go-ole v1.2.4 // indirect
-	github.com/gogo/protobuf v1.3.0
 	github.com/golang/protobuf v1.3.5
-	github.com/hashicorp/go-multierror v1.0.0
 	github.com/manifoldco/promptui v0.0.0-00010101000000-000000000000
 	github.com/mattn/go-isatty v0.0.12
 	github.com/mattn/go-shellwords v1.0.10
@@ -27,7 +25,7 @@ require (
 	github.com/shirou/gopsutil v0.0.0-20190731134726-d80c43f9c984
 	github.com/shurcooL/httpfs v0.0.0-20190707220628-8d4bc4ba7749
 	github.com/spf13/cobra v0.0.5
-	github.com/stretchr/testify v1.4.0
+	github.com/stretchr/testify v1.6.1
 	github.com/tetratelabs/getenvoy-package v0.0.0-20190730071641-da31aed4333e
 	github.com/tetratelabs/log v0.0.0-20190710134534-eb04d1e84fb8
 	github.com/tetratelabs/multierror v1.1.0