convert to go buildpack

1 files changed, 72 insertions, 0 deletions

diff --git a/vendor/github.com/magefile/mage/magefile.go b/vendor/github.com/magefile/mage/magefile.go
new file mode 100644
index 0000000..373ab5d
--- /dev/null
+++ b/vendor/github.com/magefile/mage/magefile.go
@@ -0,0 +1,72 @@
+//+build mage
+
+package main
+
+import (
+	"bytes"
+	"errors"
+	"fmt"
+	"os"
+	"time"
+
+	"github.com/magefile/mage/sh"
+)
+
+// Runs "go install" for mage.  This generates the version info the binary.
+func Build() error {
+	ldf, err := flags()
+	if err != nil {
+		return err
+	}
+
+	return sh.Run("go", "install", "-ldflags="+ldf, "github.com/magefile/mage")
+}
+
+// Generates a new release.  Expects the TAG environment variable to be set,
+// which will create a new tag with that name.
+func Release() (err error) {
+	if os.Getenv("TAG") == "" {
+		return errors.New("MSG and TAG environment variables are required")
+	}
+	if err := sh.RunV("git", "tag", "-a", "$TAG"); err != nil {
+		return err
+	}
+	if err := sh.RunV("git", "push", "origin", "$TAG"); err != nil {
+		return err
+	}
+	defer func() {
+		if err != nil {
+			sh.RunV("git", "tag", "--delete", "$TAG")
+			sh.RunV("git", "push", "--delete", "origin", "$TAG")
+		}
+	}()
+	return sh.RunV("goreleaser")
+}
+
+// Remove the temporarily generated files from Release.
+func Clean() error {
+	return sh.Rm("dist")
+}
+
+func flags() (string, error) {
+	timestamp := time.Now().Format(time.RFC3339)
+	hash := hash()
+	tag := tag()
+	if tag == "" {
+		tag = "dev"
+	}
+	return fmt.Sprintf(`-X "github.com/magefile/mage/mage.timestamp=%s" -X "github.com/magefile/mage/mage.commitHash=%s" -X "github.com/magefile/mage/mage.gitTag=%s"`, timestamp, hash, tag), nil
+}
+
+// tag returns the git tag for the current branch or "" if none.
+func tag() string {
+	buf := &bytes.Buffer{}
+	_, _ = sh.Exec(nil, buf, nil, "git", "describe", "--tags")
+	return buf.String()
+}
+
+// hash returns the git hash for the current repo or "" if none.
+func hash() string {
+	hash, _ := sh.Output("git", "rev-parse", "--short", "HEAD")
+	return hash
+}