Major rewrite

* use dep for vendoring
* lets encrypt
* moved web to transfer.sh-web repo
* single command install
* added first tests

vendor/github.com/golang/gddo/gddo-server/play.go

@@ -0,0 +1,91 @@
+// Copyright 2013 The Go Authors. All rights reserved.
+//
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file or at
+// https://developers.google.com/open-source/licenses/bsd.
+
+package main
+
+import (
+	"fmt"
+	"io/ioutil"
+	"net/http"
+	"regexp"
+	"strings"
+
+	"github.com/golang/gddo/doc"
+)
+
+func findExamples(pdoc *doc.Package, export, method string) []*doc.Example {
+	if "package" == export {
+		return pdoc.Examples
+	}
+	for _, f := range pdoc.Funcs {
+		if f.Name == export {
+			return f.Examples
+		}
+	}
+	for _, t := range pdoc.Types {
+		for _, f := range t.Funcs {
+			if f.Name == export {
+				return f.Examples
+			}
+		}
+		if t.Name == export {
+			if method == "" {
+				return t.Examples
+			}
+			for _, m := range t.Methods {
+				if method == m.Name {
+					return m.Examples
+				}
+			}
+			return nil
+		}
+	}
+	return nil
+}
+
+func findExample(pdoc *doc.Package, export, method, name string) *doc.Example {
+	for _, e := range findExamples(pdoc, export, method) {
+		if name == e.Name {
+			return e
+		}
+	}
+	return nil
+}
+
+var exampleIDPat = regexp.MustCompile(`([^-]+)(?:-([^-]*)(?:-(.*))?)?`)
+
+func playURL(pdoc *doc.Package, id, countryHeader string) (string, error) {
+	if m := exampleIDPat.FindStringSubmatch(id); m != nil {
+		if e := findExample(pdoc, m[1], m[2], m[3]); e != nil && e.Play != "" {
+			req, err := http.NewRequest("POST", "https://play.golang.org/share", strings.NewReader(e.Play))
+			if err != nil {
+				return "", err
+			}
+			req.Header.Set("Content-Type", "text/plain")
+			if countryHeader != "" {
+				// Forward the App Engine country header.
+				req.Header.Set("X-AppEngine-Country", countryHeader)
+			}
+			resp, err := httpClient.Do(req)
+			if err != nil {
+				return "", err
+			}
+			defer resp.Body.Close()
+			p, err := ioutil.ReadAll(resp.Body)
+			if err != nil {
+				return "", err
+			}
+			if resp.StatusCode > 399 {
+				return "", &httpError{
+					status: resp.StatusCode,
+					err:    fmt.Errorf("Error from play.golang.org: %s", p),
+				}
+			}
+			return fmt.Sprintf("http://play.golang.org/p/%s", p), nil
+		}
+	}
+	return "", &httpError{status: http.StatusNotFound}
+}