Merge pull request #5 from drone-plugins/webhook_support

Added webhook support

cmd/main.go

@@ -6,6 +6,7 @@ import (
 
 	plugin "github.com/drone-plugins/drone-github-actions"
 	"github.com/drone-plugins/drone-github-actions/daemon"
+	"github.com/drone-plugins/drone-github-actions/pkg/encoder"
 	"github.com/joho/godotenv"
 	"github.com/pkg/errors"
 	"github.com/sirupsen/logrus"
@@ -75,6 +76,11 @@ func main() {
 			Value:  "node:12-buster-slim",
 			EnvVar: "PLUGIN_ACTION_IMAGE",
 		},
+		cli.StringFlag{
+			Name:   "event-payload",
+			Usage:  "Webhook event payload",
+			EnvVar: "PLUGIN_EVENT_PAYLOAD",
+		},
 
 		// daemon flags
 		cli.StringFlag{
@@ -172,6 +178,7 @@ func run(c *cli.Context) error {
 			Env:          actionEnv,
 			Verbose:      c.Bool("action-verbose"),
 			Image:        c.String("action-image"),
+			EventPayload: c.String("event-payload"),
 		},
 		Daemon: daemon.Daemon{
 			Registry:      c.String("docker.registry"),
@@ -199,7 +206,14 @@ func strToMap(s string) (map[string]string, error) {
 	}
 
 	if err := json.Unmarshal([]byte(s), &m); err != nil {
-		return nil, err
+		m1 := make(map[string]interface{})
+		if e := json.Unmarshal([]byte(s), &m1); e != nil {
+			return nil, e
+		}
+
+		for k, v := range m1 {
+			m[k] = encoder.Encode(v)
+		}
 	}
 	return m, nil
 }

daemon/daemon.go

@@ -12,7 +12,7 @@ type Daemon struct {
 	Insecure      bool     // Docker daemon enable insecure registries
 	StorageDriver string   // Docker daemon storage driver
 	StoragePath   string   // Docker daemon storage path
-	Disabled      bool     // DOcker daemon is disabled (already running)
+	Disabled      bool     // Docker daemon is disabled (already running)
 	Debug         bool     // Docker daemon started in debug mode
 	Bip           string   // Docker daemon network bridge IP address
 	DNS           []string // Docker daemon dns server
@@ -23,7 +23,9 @@ type Daemon struct {
 }
 
 func StartDaemon(d Daemon) error {
+	if !d.Disabled {
 		startDaemon(d)
+	}
 	return waitForDaemon()
 }
 

go.mod

@@ -3,6 +3,8 @@ module github.com/drone-plugins/drone-github-actions
 go 1.16
 
 require (
+	github.com/buildkite/yaml v2.1.0+incompatible
+	github.com/ghodss/yaml v1.0.0
 	github.com/joho/godotenv v1.3.0
 	github.com/pkg/errors v0.9.1
 	github.com/sirupsen/logrus v1.8.1

go.sum

@@ -1,7 +1,11 @@
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
+github.com/buildkite/yaml v2.1.0+incompatible h1:xirI+ql5GzfikVNDmt+yeiXpf/v1Gt03qXTtT5WXdr8=
+github.com/buildkite/yaml v2.1.0+incompatible/go.mod h1:UoU8vbcwu1+vjZq01+KrpSeLBgQQIjL/H7Y6KwikUrI=
 github.com/cpuguy83/go-md2man/v2 v2.0.0-20190314233015-f79a8a8ca69d h1:U+s90UTSYgptZMwQh2aRr3LuazLJIa+Pg3Kc1ylSYVY=
 github.com/cpuguy83/go-md2man/v2 v2.0.0-20190314233015-f79a8a8ca69d/go.mod h1:maD7wRr/U5Z6m/iR4s+kqSMx2CaBsrgA7czyZG/E6dU=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/ghodss/yaml v1.0.0 h1:wQHKEahhL6wmXdzwWG11gIVCkOv05bNOh+Rxn0yngAk=
+github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04=
 github.com/joho/godotenv v1.3.0 h1:Zjp+RcGpHhGlrMbJzXTrZZPrWj+1vfm90La1wgB6Bhc=
 github.com/joho/godotenv v1.3.0/go.mod h1:7hK45KPybAkOC6peb+G5yklZfMxEjkZhHbwpqxOKXbg=
 github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=

pkg/encoder/encoder.go

@@ -0,0 +1,52 @@
+package encoder
+
+import (
+	"encoding/base64"
+	"strconv"
+	"strings"
+
+	"github.com/buildkite/yaml"
+	json "github.com/ghodss/yaml"
+)
+
+// Encode encodes an interface value as a string. This function
+// assumes all types were unmarshaled by the yaml.v2 library.
+// The yaml.v2 package only supports a subset of primitive types.
+func Encode(v interface{}) string {
+	switch v := v.(type) {
+	case string:
+		return v
+	case bool:
+		return strconv.FormatBool(v)
+	case int:
+		return strconv.Itoa(v)
+	case float64:
+		return strconv.FormatFloat(v, 'g', -1, 64)
+	case []byte:
+		return base64.StdEncoding.EncodeToString(v)
+	case []interface{}:
+		return encodeSlice(v)
+	default:
+		return encodeMap(v)
+	}
+}
+
+// helper function encodes a parameter in map format.
+func encodeMap(v interface{}) string {
+	yml, _ := yaml.Marshal(v)
+	out, _ := json.YAMLToJSON(yml)
+	return string(out)
+}
+
+// helper function encodes a parameter in slice format.
+func encodeSlice(v interface{}) string {
+	out, _ := yaml.Marshal(v)
+
+	in := []string{}
+	err := yaml.Unmarshal(out, &in)
+	if err == nil {
+		return strings.Join(in, ",")
+	}
+	out, _ = json.YAMLToJSON(out)
+	return string(out)
+}

plugin.go

@@ -2,18 +2,21 @@ package plugin
 
 import (
 	"fmt"
+	"io/ioutil"
 	"os"
 	"os/exec"
 	"strings"
 
 	"github.com/drone-plugins/drone-github-actions/daemon"
 	"github.com/drone-plugins/drone-github-actions/utils"
+	"github.com/pkg/errors"
 )
 
 const (
 	envFile          = "/tmp/action.env"
 	secretFile       = "/tmp/action.secrets"
 	workflowFile     = "/tmp/workflow.yml"
+	eventPayloadFile = "/tmp/event.json"
 )
 
 var (
@@ -26,6 +29,7 @@ type (
 		With         map[string]string
 		Env          map[string]string
 		Image        string
+		EventPayload string // Webhook event payload
 		Verbose      bool
 	}
 
@@ -63,6 +67,14 @@ func (p Plugin) Exec() error {
 		"--detect-event",
 	}
 
+	if p.Action.EventPayload != "" {
+		if err := ioutil.WriteFile(eventPayloadFile, []byte(p.Action.EventPayload), 0644); err != nil {
+			return errors.Wrap(err, "failed to write event payload to file")
+		}
+
+		cmdArgs = append(cmdArgs, "--eventpath", eventPayloadFile)
+	}
+
 	if p.Action.Verbose {
 		cmdArgs = append(cmdArgs, "-v")
 	}