Add recent changes

file.go

@@ -12,6 +12,7 @@ import (
 	"os/exec"
 	"path/filepath"
 	"strings"
+	"time"
 )
 
 type FilePages struct {
@@ -158,3 +159,64 @@ func gitRevision(dirname, page, version string) string {
 	cmd.Wait()
 	return buf.String()
 }
+
+func (fp *FilePages) RecentChanges() ([]Change, error) {
+	cmd := exec.Command("git", "log", "--format=--1--%nDate: %aI%n--2--", "--name-only")
+	cmd.Dir = fp.dirname
+	buf := bytes.Buffer{}
+	cmd.Stdout = &buf
+	err := cmd.Start()
+	if err != nil {
+		return nil, err
+	}
+	err = cmd.Wait()
+	if err != nil {
+		return nil, err
+	}
+
+	scanner := bufio.NewScanner(&buf)
+
+	first := false
+	second := false
+
+	var changes []Change
+
+	var change Change
+
+	for scanner.Scan() {
+		line := scanner.Text()
+
+		if line == "--1--" {
+			second = false
+			first = true
+			continue
+		}
+
+		if line == "--2--" {
+			first = false
+			second = true
+			continue
+		}
+
+		if first && strings.HasPrefix(line, "Date: ") {
+			line = line[6:]
+			changeTime, err := time.Parse(time.RFC3339, line)
+			if err != nil {
+				return changes, err
+			}
+			change.Date = changeTime
+			continue
+		}
+
+		if second {
+			if line == "" {
+				continue
+			}
+			change.Page = line
+		}
+
+		changes = append(changes, change)
+	}
+
+	return changes, nil
+}

main.go

@@ -11,6 +11,7 @@ import (
 	"p83.nl/go/indieauth"
 	"regexp"
 	"strings"
+	"time"
 )
 
 var (
@@ -38,11 +39,17 @@ type Revision struct {
 	Summary string
 }
 
+type Change struct {
+	Page string
+	Date time.Time
+}
+
 type PagesRepository interface {
 	Get(p string) Page
 	Save(p string, page Page, summary, author string)
 	Exist(p string) bool
 	PageHistory(p string) ([]Revision, error)
+	RecentChanges() ([]Change, error)
 }
 
 type indexPage struct {
@@ -66,10 +73,18 @@ type historyPage struct {
 	History []Revision
 }
 
+type recentPage struct {
+	Session *Session
+	Title   string
+	Name    string
+	Recent []Change
+}
+
 type indexHandler struct{}
 type saveHandler struct{}
 type editHandler struct{}
 type historyHandler struct{}
+type recentHandler struct{}
 type authHandler struct{}
 
 func (*authHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
@@ -352,6 +367,47 @@ func (h *indexHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 	}
 }
 
+func (h *recentHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
+	defer r.Body.Close()
+
+	sess, err := NewSession(w, r)
+	if err != nil {
+		http.Error(w, err.Error(), 500)
+		return
+	}
+	defer sess.Flush()
+
+	if !sess.LoggedIn {
+		http.Redirect(w, r, "/", http.StatusFound)
+		return
+	}
+
+	r.ParseForm()
+
+	changes, err := mp.RecentChanges()
+	if err != nil {
+		http.Error(w, err.Error(), 500)
+		return
+	}
+
+	t, err := template.New("layout.html").ParseFiles("templates/layout.html", "templates/recent.html")
+	if err != nil {
+		http.Error(w, err.Error(), 500)
+		return
+	}
+
+	err = t.Execute(w, recentPage{
+		Session: sess,
+		Title:   "Recent changes",
+		Name:    "Recent changes",
+		Recent: changes,
+	})
+	if err != nil {
+		http.Error(w, err.Error(), 500)
+		return
+	}
+}
+
 func main() {
 	mp = NewFilePages("data")
 
@@ -360,6 +416,7 @@ func main() {
 	http.Handle("/save/", &saveHandler{})
 	http.Handle("/edit/", &editHandler{})
 	http.Handle("/history/", &historyHandler{})
+	http.Handle("/recent/", &recentHandler{})
 	http.Handle("/", &indexHandler{})
 
 	fmt.Printf("Running on port 8080")

memory.go

@@ -35,3 +35,11 @@ func (mp *MemoryPages) Exist(p string) bool {
 	_, e := mp.pages[p]
 	return e
 }
+
+func (mp *MemoryPages) PageHistory(p string) ([]Revision, error) {
+	panic("implement me")
+}
+
+func (mp *MemoryPages) RecentChanges() ([]Change, error) {
+	panic("implement me")
+}

templates/recent.html

@@ -0,0 +1,15 @@
+{{ define "navbar" }}
+{{ end }}
+
+{{ define "content" }}
+    <h1 class="title">{{ .Title }}</h1>
+
+    <table class="table">
+    {{ range $index, $change := .Recent }}
+           <tr>
+               <td>{{ $change.Date }}</td>
+               <td><a href="/{{ $change.Page }}">{{ $change.Page }}</a></td>
+           </tr>
+    {{ end }}
+    </table>
+{{ end }}

templates/view.html

@@ -9,6 +9,7 @@
     {{ if $.Session.LoggedIn }}
         <a href="/edit/{{ .Name }}" class="navbar-item">Edit</a>
         <a href="/history/{{ .Name }}" class="navbar-item">History</a>
+        <a href="/recent/" class="navbar-item">Recent Changes</a>
         <a href="/auth/logout" class="navbar-item">Logout</a>
         <span class="navbar-item"><b>{{ $.Session.Me }}</b></span>
     {{ else }}