Initial Bitbucket→GitHub migration commit, based on release v2.0.0.

version.go

@@ -0,0 +1,73 @@
+/*
+	Copyright © 2014–2019 Thomas Michael Edwards. All rights reserved.
+	Use of this source code is governed by a Simplified BSD License which
+	can be found in the LICENSE file.
+*/
+
+package main
+
+import (
+	"fmt"
+	"runtime"
+)
+
+// versionInfo contains build version information.
+type versionInfo struct {
+	major uint64
+	minor uint64
+	patch uint64
+	pre   string
+}
+
+var (
+	// tweegoVersion holds the current version info.
+	tweegoVersion = versionInfo{
+		major: 2,
+		minor: 0,
+		patch: 0,
+		pre:   "",
+	}
+	// tweegoVersion holds the build ID.
+	tweegoBuild = ""
+	// tweegoVersion holds the build date.
+	tweegoDate = ""
+)
+
+// String returns the full version string (version, date, and platform).
+func (v versionInfo) String() string {
+	date := tweegoDate
+	if date != "" {
+		date = " (" + date + ")"
+	}
+	return fmt.Sprintf("version %s%s [%s]", v.Version(), date, v.Platform())
+}
+
+// Version returns the SemVer version string.
+func (v versionInfo) Version() string {
+	pre := v.pre
+	if pre != "" {
+		pre = "-" + pre
+	}
+	build := tweegoBuild
+	if build != "" {
+		build = "+" + build
+	}
+	return fmt.Sprintf(
+		"%d.%d.%d%s%s",
+		v.major,
+		v.minor,
+		v.patch,
+		pre,
+		build,
+	)
+}
+
+// Date returns the build date string.
+func (v versionInfo) Date() string {
+	return tweegoDate
+}
+
+// Platform returns the OS/Arch pair.
+func (v versionInfo) Platform() string {
+	return runtime.GOOS + "/" + runtime.GOARCH
+}