Update tengo vendor and load the stdlib. Fixes #789 (#792)

1 files changed, 53 insertions, 0 deletions

diff --git a/vendor/github.com/d5/tengo/stdlib/gensrcmods.go b/vendor/github.com/d5/tengo/stdlib/gensrcmods.go
new file mode 100644
index 00000000..fada66bd
--- /dev/null
+++ b/vendor/github.com/d5/tengo/stdlib/gensrcmods.go
@@ -0,0 +1,53 @@
+// +build ignore
+
+package main
+
+import (
+	"bytes"
+	"io/ioutil"
+	"log"
+	"regexp"
+	"strconv"
+)
+
+var tengoModFileRE = regexp.MustCompile(`^srcmod_(\w+).tengo$`)
+
+func main() {
+	modules := make(map[string]string)
+
+	// enumerate all Tengo module files
+	files, err := ioutil.ReadDir(".")
+	if err != nil {
+		log.Fatal(err)
+	}
+	for _, file := range files {
+		m := tengoModFileRE.FindStringSubmatch(file.Name())
+		if m != nil {
+			modName := m[1]
+
+			src, err := ioutil.ReadFile(file.Name())
+			if err != nil {
+				log.Fatalf("file '%s' read error: %s", file.Name(), err.Error())
+			}
+
+			modules[modName] = string(src)
+		}
+	}
+
+	var out bytes.Buffer
+	out.WriteString(`// Code generated using gensrcmods.go; DO NOT EDIT.
+
+package stdlib
+
+// SourceModules are source type standard library modules.
+var SourceModules = map[string]string{` + "\n")
+	for modName, modSrc := range modules {
+		out.WriteString("\t\"" + modName + "\": " + strconv.Quote(modSrc) + ",\n")
+	}
+	out.WriteString("}\n")
+
+	const target = "source_modules.go"
+	if err := ioutil.WriteFile(target, out.Bytes(), 0644); err != nil {
+		log.Fatal(err)
+	}
+}