move templates code into another project

go.mod

@@ -6,5 +6,5 @@ require (
 	golang.org/x/crypto v0.0.0-20190424203555-c05e17bb3b2d
 	golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3
 	humungus.tedunangst.com/r/go-sqlite3 v1.1.2
-	humungus.tedunangst.com/r/webs v0.1.0
+	humungus.tedunangst.com/r/webs v0.2.0
 )

go.sum

@@ -12,5 +12,5 @@ golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 humungus.tedunangst.com/r/go-sqlite3 v1.1.2 h1:bRAXNRZ4VNFRFhhG4tdudK4Lv4ktHQAHEppKlDANUFg=
 humungus.tedunangst.com/r/go-sqlite3 v1.1.2/go.mod h1:FtEEmQM7U2Ey1TuEEOyY1BmphTZnmiEjPsNLEAkpf/M=
-humungus.tedunangst.com/r/webs v0.1.0 h1:TaJBDhgWWL66oK+6aldgn5BdSwTD+9epqhWHoKFc0iI=
+humungus.tedunangst.com/r/webs v0.2.0 h1:K0PJK4ZFNB+B0vGbs6huY5br35Z9xR4T6XpcFHmwXgQ=
-humungus.tedunangst.com/r/webs v0.1.0/go.mod h1:6yLLDXBaE4pKURa/3/bxoQPod37uAqc/Kq8J0IopWW0=
+humungus.tedunangst.com/r/webs v0.2.0/go.mod h1:6yLLDXBaE4pKURa/3/bxoQPod37uAqc/Kq8J0IopWW0=

honk.go

@@ -37,6 +37,7 @@ import (
 
 	"github.com/gorilla/mux"
 	"humungus.tedunangst.com/r/webs/login"
+	"humungus.tedunangst.com/r/webs/templates"
 )
 
 type WhatAbout struct {
@@ -87,7 +88,7 @@ type Honker struct {
 var serverName string
 var iconName = "icon.png"
 
-var readviews *Template
+var readviews *templates.Template
 
 func getInfo(r *http.Request) map[string]interface{} {
 	templinfo := make(map[string]interface{})
@@ -145,7 +146,7 @@ func homepage(w http.ResponseWriter, r *http.Request) {
 		w.Header().Set("Cache-Control", "max-age=0")
 	}
 	w.Header().Set("Last-Modified", modtime.Format(http.TimeFormat))
-	err := readviews.ExecuteTemplate(w, "honkpage.html", templinfo)
+	err := readviews.Execute(w, "honkpage.html", templinfo)
 	if err != nil {
 		log.Print(err)
 	}
@@ -566,7 +567,7 @@ func honkpage(w http.ResponseWriter, r *http.Request, u *login.UserInfo, user *W
 	}
 	templinfo["Honks"] = honks
 	templinfo["ServerMessage"] = infomsg
-	err := readviews.ExecuteTemplate(w, "honkpage.html", templinfo)
+	err := readviews.Execute(w, "honkpage.html", templinfo)
 	if err != nil {
 		log.Print(err)
 	}
@@ -968,7 +969,7 @@ func viewhonkers(w http.ResponseWriter, r *http.Request) {
 	templinfo := getInfo(r)
 	templinfo["Honkers"] = gethonkers(userinfo.UserID)
 	templinfo["HonkerCSRF"] = login.GetCSRF("savehonker", r)
-	err := readviews.ExecuteTemplate(w, "honkers.html", templinfo)
+	err := readviews.Execute(w, "honkers.html", templinfo)
 	if err != nil {
 		log.Print(err)
 	}
@@ -1107,7 +1108,7 @@ func killzone(w http.ResponseWriter, r *http.Request) {
 	templinfo := getInfo(r)
 	templinfo["Zonkers"] = zonkers
 	templinfo["KillCSRF"] = login.GetCSRF("killitwithfire", r)
-	err = readviews.ExecuteTemplate(w, "zonkers.html", templinfo)
+	err = readviews.Execute(w, "zonkers.html", templinfo)
 	if err != nil {
 		log.Print(err)
 	}
@@ -1165,7 +1166,7 @@ func servecss(w http.ResponseWriter, r *http.Request) {
 }
 func servehtml(w http.ResponseWriter, r *http.Request) {
 	templinfo := getInfo(r)
-	err := readviews.ExecuteTemplate(w, r.URL.Path[1:]+".html", templinfo)
+	err := readviews.Execute(w, r.URL.Path[1:]+".html", templinfo)
 	if err != nil {
 		log.Print(err)
 	}
@@ -1205,7 +1206,7 @@ func serve() {
 
 	debug := false
 	getconfig("debug", &debug)
-	readviews = ParseTemplates(debug,
+	readviews = templates.Load(debug,
 		"views/honkpage.html",
 		"views/honkers.html",
 		"views/zonkers.html",

template.go

@@ -1,81 +0,0 @@
-//
-// Copyright (c) 2019 Ted Unangst <tedu@tedunangst.com>
-//
-// Permission to use, copy, modify, and distribute this software for any
-// purpose with or without fee is hereby granted, provided that the above
-// copyright notice and this permission notice appear in all copies.
-//
-// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
-// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
-// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
-// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
-// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
-// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
-// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
-
-package main
-
-import (
-	"errors"
-	"html/template"
-	"io"
-	"log"
-)
-
-type Template struct {
-	names     []string
-	templates *template.Template
-	reload    bool
-}
-
-func mapmaker(values ...interface{}) (map[string]interface{}, error) {
-	if len(values)%2 != 0 {
-		return nil, errors.New("need arguments in pairs")
-	}
-	dict := make(map[string]interface{}, len(values)/2)
-	for i := 0; i < len(values); i += 2 {
-		key, ok := values[i].(string)
-		if !ok {
-			return nil, errors.New("key must be string")
-		}
-		dict[key] = values[i+1]
-	}
-	return dict, nil
-}
-
-func loadtemplates(filenames ...string) (*template.Template, error) {
-	templates := template.New("")
-	templates.Funcs(template.FuncMap{
-		"map": mapmaker,
-	})
-	templates, err := templates.ParseFiles(filenames...)
-	if err != nil {
-		return nil, err
-	}
-	return templates, nil
-}
-
-func (t *Template) ExecuteTemplate(w io.Writer, name string, data interface{}) error {
-	if t.reload {
-		templates, err := loadtemplates(t.names...)
-		if err != nil {
-			return err
-		}
-		return templates.ExecuteTemplate(w, name, data)
-	}
-	return t.templates.ExecuteTemplate(w, name, data)
-}
-
-func ParseTemplates(reload bool, filenames ...string) *Template {
-	t := new(Template)
-	t.names = filenames
-	t.reload = reload
-	templates, err := loadtemplates(filenames...)
-	if err != nil {
-		log.Panic(err)
-	}
-	if !reload {
-		t.templates = templates
-	}
-	return t
-}