1 files changed, 26 insertions, 16 deletions

diff --git a/src/cmd/godoc/main.go b/src/cmd/godoc/main.go
index 51fcf8dd0..943c81cfb 100644
--- a/src/cmd/godoc/main.go
+++ b/src/cmd/godoc/main.go
@@ -26,6 +26,7 @@
 package main
 
 import (
+	"archive/zip"
 	"bytes"
 	_ "expvar" // to serve /debug/vars
 	"flag"
@@ -37,6 +38,7 @@ import (
 	"io"
 	"log"
 	"os"
+	"path"
 	"path/filepath"
 	"regexp"
 	"runtime"
@@ -47,6 +49,10 @@ import (
 const defaultAddr = ":6060" // default webserver address
 
 var (
+	// file system to serve
+	// (with e.g.: zip -r go.zip $GOROOT -i \*.go -i \*.html -i \*.css -i \*.js -i \*.txt -i \*.c -i \*.h -i \*.s -i \*.png -i \*.jpg -i \*.sh -i favicon.ico)
+	zipfile = flag.String("zip", "", "zip file providing the file system to serve; disabled if empty")
+
 	// periodic sync
 	syncCmd   = flag.String("sync", "", "sync command; disabled if empty")
 	syncMin   = flag.Int("sync_minutes", 0, "sync interval in minutes; disabled if <= 0")
@@ -64,14 +70,12 @@ var (
 	query = flag.Bool("q", false, "arguments are considered search queries")
 )
 
-
 func serveError(w http.ResponseWriter, r *http.Request, relpath string, err os.Error) {
 	contents := applyTemplate(errorHTML, "errorHTML", err) // err may contain an absolute path!
 	w.WriteHeader(http.StatusNotFound)
 	servePage(w, "File "+relpath, "", "", contents)
 }
 
-
 func exec(rw http.ResponseWriter, args []string) (status int) {
 	r, w, err := os.Pipe()
 	if err != nil {
@@ -119,7 +123,6 @@ func exec(rw http.ResponseWriter, args []string) (status int) {
 	return
 }
 
-
 func dosync(w http.ResponseWriter, r *http.Request) {
 	args := []string{"/bin/sh", "-c", *syncCmd}
 	switch exec(w, args) {
@@ -141,7 +144,6 @@ func dosync(w http.ResponseWriter, r *http.Request) {
 	}
 }
 
-
 func usage() {
 	fmt.Fprintf(os.Stderr,
 		"usage: godoc package [name ...]\n"+
@@ -150,7 +152,6 @@ func usage() {
 	os.Exit(2)
 }
 
-
 func loggingHandler(h http.Handler) http.Handler {
 	return http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
 		log.Printf("%s\t%s", req.RemoteAddr, req.URL)
@@ -158,7 +159,6 @@ func loggingHandler(h http.Handler) http.Handler {
 	})
 }
 
-
 func remoteSearch(query string) (res *http.Response, err os.Error) {
 	search := "/search?f=text&q=" + http.URLEscape(query)
 
@@ -190,13 +190,11 @@ func remoteSearch(query string) (res *http.Response, err os.Error) {
 	return
 }
 
-
 // Does s look like a regular expression?
 func isRegexp(s string) bool {
 	return strings.IndexAny(s, ".(|)*+?^$[]") >= 0
 }
 
-
 // Make a regular expression of the form
 // names[0]|names[1]|...names[len(names)-1].
 // Returns nil if the regular expression is illegal.
@@ -218,18 +216,10 @@ func makeRx(names []string) (rx *regexp.Regexp) {
 	return
 }
 
-
 func main() {
 	flag.Usage = usage
 	flag.Parse()
 
-	// Determine file system to use.
-	// TODO(gri) Complete this - for now we only have one.
-	fs = OS
-
-	// Clean goroot: normalize path separator.
-	*goroot = filepath.Clean(*goroot)
-
 	// Check usage: either server and no args, or command line and args
 	if (*httpAddr != "") != (flag.NArg() == 0) {
 		usage()
@@ -239,6 +229,26 @@ func main() {
 		log.Fatalf("negative tabwidth %d", *tabwidth)
 	}
 
+	// Determine file system to use.
+	// TODO(gri) - fs and fsHttp should really be the same. Try to unify.
+	//           - fsHttp doesn't need to be set up in command-line mode,
+	//             same is true for the http handlers in initHandlers.
+	if *zipfile == "" {
+		// use file system of underlying OS
+		*goroot = filepath.Clean(*goroot) // normalize path separator
+		fs = OS
+		fsHttp = http.Dir(*goroot)
+	} else {
+		// use file system specified via .zip file (path separator must be '/')
+		rc, err := zip.OpenReader(*zipfile)
+		if err != nil {
+			log.Fatalf("%s: %s\n", *zipfile, err)
+		}
+		*goroot = path.Join("/", *goroot) // fsHttp paths are relative to '/'
+		fs = NewZipFS(rc)
+		fsHttp = NewHttpZipFS(rc, *goroot)
+	}
+
 	initHandlers()
 	readTemplates()