switch to godocs vfs wrapper. unfortunately remote zip support is gone now.

This commit is contained in:
mischief 2016-01-20 17:36:13 -08:00
parent 1761f59b2b
commit 0f0b1bee47
6 changed files with 142 additions and 263 deletions

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@ -1,6 +1,7 @@
P=gowerc
SRC=bitbucket.org
USER?=mischief
GO_VERSION=1.5.3
all: $(USER)/$(P)
@ -8,9 +9,9 @@ $(USER)/$(P): bin/$(P)
docker build -t "$(USER)/$(P):latest" .
bin/$(P): *.go
docker run --rm -v ${PWD}:/go/src/$(SRC)/$(USER)/$(P) golang:1.4 /bin/bash -c "go list -f '{{range .Imports}}{{printf \"%s\n\" .}}{{end}}' $(SRC)/$(USER)/$(P) | xargs go get -d; CGO_ENABLED=0 go build -v -installsuffix cgo -o /go/src/$(SRC)/$(USER)/$(P)/bin/$(P) $(SRC)/$(USER)/$(P)"
docker run --rm -v ${PWD}:/go/src/$(SRC)/$(USER)/$(P) golang:${GO_VERSION} /bin/bash -c "go list -f '{{range .Imports}}{{printf \"%s\n\" .}}{{end}}' $(SRC)/$(USER)/$(P) | xargs go get -d; CGO_ENABLED=0 go build -v -installsuffix cgo -o /go/src/$(SRC)/$(USER)/$(P)/bin/$(P) $(SRC)/$(USER)/$(P)"
clean:
docker run --rm -v ${PWD}:/opt busybox rm /opt/bin/$(P)
docker rmi "$(USER)/$(P):latest"
docker run --rm -v ${PWD}:/opt busybox rm -f /opt/bin/$(P)
docker rmi -f "$(USER)/$(P):latest"

61
fs.go Normal file
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@ -0,0 +1,61 @@
package main
import (
"archive/zip"
"io"
"net/http"
"os"
"strings"
"golang.org/x/tools/godoc/vfs/httpfs"
"golang.org/x/tools/godoc/vfs/zipfs"
)
// Make a few FS.
// Supported types are:
// - local directory (foo/bar/)
// - local zip file (foo/bar.zip)
func NewFS(uri string) (*FS, error) {
if strings.HasSuffix(uri, ".zip") {
r, err := zip.OpenReader(uri)
if err != nil {
return nil, err
}
zfs := zipfs.New(r, uri)
hfs := httpfs.New(zfs)
fs := &FS{
FileSystem: hfs,
closeme: r,
}
return fs, nil
}
fi, err := os.Stat(uri)
if err != nil {
return nil, err
}
if !fi.IsDir() {
return nil, os.ErrInvalid
}
fs := &FS{
FileSystem: http.Dir(uri),
}
return fs, nil
}
type FS struct {
http.FileSystem
closeme io.Closer
}
func (f *FS) Close() error {
if f.closeme != nil {
return f.Close()
}
return nil
}

88
main.go
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@ -2,20 +2,18 @@ package main
import (
"bytes"
"fmt"
"strings"
"time"
"flag"
"log"
"os"
"encoding/json"
"flag"
"fmt"
"html/template"
"io"
"log"
"net"
"net/http"
"os"
"path/filepath"
"strings"
"time"
"github.com/russross/blackfriday"
)
@ -48,10 +46,11 @@ type MenuEntry struct {
}
type Werc struct {
root string
conf WercConfig
tmpl *template.Template
store Store
root string
conf WercConfig
tmpl *template.Template
fs *FS
}
func New(root string) *Werc {
@ -60,22 +59,19 @@ func New(root string) *Werc {
w.tmpl = template.New("root")
var err error
if strings.HasSuffix(root, ".zip") {
w.store, err = openZipStore(root)
} else {
w.store = &fileStore{root}
err = nil
}
w.fs, err = NewFS(root)
if err != nil {
log.Printf("can't open root: %v", err)
return nil
}
b, err := w.store.ReadFile("etc/config.json")
b, err := readfile(w.fs, "etc/config.json")
if err != nil {
log.Printf("error loading config.json: %v", err)
return nil
}
err = json.Unmarshal(b, &w.conf)
if err != nil {
log.Printf("%s: %s", root+"/config.json", err)
@ -85,7 +81,7 @@ func New(root string) *Werc {
// load templates
tmpls := []string{"base", "directory", "footer", "menu", "text", "topbar"}
for _, tn := range tmpls {
b, err := w.store.ReadFile(fmt.Sprintf("lib/%s.html", tn))
b, err := readfile(w.fs, fmt.Sprintf("lib/%s.html", tn))
if err != nil {
panic(err)
}
@ -160,7 +156,7 @@ func (werc *Werc) genmenu(site, dir string) []MenuEntry {
for i := range dirs {
var sub []MenuEntry
b := filepath.Join(base, dirs[i])
fi, _ := werc.store.ReadDir(b)
fi, _ := readdir(werc.fs, b)
for _, f := range fi {
newname, ok := okmenu(b, f)
if !ok {
@ -204,7 +200,7 @@ func (werc *Werc) WercCommon(w http.ResponseWriter, r *http.Request, site string
page.Menu = werc.genmenu(site, path)
conf := "sites/" + site + "/_werc/config.json"
b, err := werc.store.ReadFile(conf)
b, err := readfile(werc.fs, conf)
if err != nil {
log.Printf("%s: %s", conf, err)
} else {
@ -261,7 +257,7 @@ func (werc *Werc) WercDir(w http.ResponseWriter, r *http.Request, site, dir stri
data.Title = r.URL.Path
buf := new(bytes.Buffer)
fi, err := werc.store.ReadDir(dir)
fi, err := readdir(werc.fs, dir)
if err != nil {
http.Error(w, fmt.Sprintf("%s", err), 500)
return
@ -278,7 +274,7 @@ func (werc *Werc) WercDir(w http.ResponseWriter, r *http.Request, site, dir stri
}
func (werc *Werc) WercMd(w http.ResponseWriter, r *http.Request, site, path string) {
b, err := werc.store.ReadFile(path)
b, err := readfile(werc.fs, path)
if err != nil {
http.Error(w, fmt.Sprintf("%s", err), 404)
return
@ -288,7 +284,7 @@ func (werc *Werc) WercMd(w http.ResponseWriter, r *http.Request, site, path stri
}
func (werc *Werc) WercHTML(w http.ResponseWriter, r *http.Request, site, path string) {
b, err := werc.store.ReadFile(path)
b, err := readfile(werc.fs, path)
if err != nil {
http.Error(w, fmt.Sprintf("%s", err), 404)
return
@ -297,7 +293,7 @@ func (werc *Werc) WercHTML(w http.ResponseWriter, r *http.Request, site, path st
}
func (werc *Werc) WercTXT(w http.ResponseWriter, r *http.Request, site, path string) {
b, err := werc.store.ReadFile(path)
b, err := readfile(werc.fs, path)
if err != nil {
http.Error(w, fmt.Sprintf("%s", err), 404)
return
@ -313,7 +309,7 @@ func (werc *Werc) Pub(w http.ResponseWriter, r *http.Request, path string) {
path = path[1:]
}
b, err := werc.store.ReadFile(path)
b, err := readfile(werc.fs, path)
if err != nil {
log.Printf("Pub: %v", err)
http.Error(w, err.Error(), 404)
@ -349,8 +345,11 @@ again:
}
if !strings.HasSuffix(path, "/") {
if st, err := werc.store.Stat(base + path); err == nil {
if st.Mode().IsDir() {
f, err := werc.fs.Open(base + path)
if err == nil {
defer f.Close()
fi, err := f.Stat()
if err != nil && fi.IsDir() {
http.Redirect(w, r, path+"/", http.StatusMovedPermanently)
return
}
@ -377,26 +376,35 @@ again:
}
for _, f := range tryfiles {
if _, err := werc.store.Stat(f); err == nil {
log.Printf("%s %s", suf, f)
handler(w, r, site, f)
return
fh, err := werc.fs.Open(f)
if err != nil {
continue
}
defer fh.Close()
log.Printf("%s %s", suf, f)
handler(w, r, site, f)
return
}
}
if st, err := werc.store.Stat(base + path); err == nil {
if f, err := werc.fs.Open(base + path); err == nil {
defer f.Close()
st, _ := f.Stat()
if st.Mode().IsDir() {
// directory handling
log.Printf("d %s", base+path)
werc.WercDir(w, r, site, base+path)
return
} else {
// plain file handling
log.Printf("f %s", base+path)
http.ServeFile(w, r, base+path)
return
}
// plain file handling
log.Printf("f %s", base+path)
io.Copy(w, f)
return
}
if site != werc.conf.MasterSite {

198
store.go
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@ -1,198 +0,0 @@
package main
import (
"archive/zip"
"io/ioutil"
"log"
"net/url"
"os"
"path/filepath"
"strings"
"github.com/mischief/httpreader"
)
type Store interface {
ReadFile(filename string) ([]byte, error)
ReadDir(dirname string) ([]os.FileInfo, error)
Stat(name string) (os.FileInfo, error)
Close() error
}
type fileStore struct {
base string
}
func (f *fileStore) ReadFile(filename string) ([]byte, error) {
path := filepath.Join(f.base, filename)
return ioutil.ReadFile(path)
}
func (f *fileStore) ReadDir(dirname string) ([]os.FileInfo, error) {
path := filepath.Join(f.base, dirname)
// resolve symlinks
fis, err := ioutil.ReadDir(path)
if err != nil {
return nil, err
}
for i, fi := range fis {
if fi.Mode()&os.ModeSymlink == os.ModeSymlink {
sympath := filepath.Join(path, fi.Name())
newfi, err := os.Stat(sympath)
if err != nil {
log.Printf("broken symlink %q: %s", sympath, err)
continue
}
fis[i] = newfi
}
}
return fis, nil
}
func (f *fileStore) Stat(name string) (os.FileInfo, error) {
path := filepath.Join(f.base, name)
return os.Stat(path)
}
func (f *fileStore) Close() error {
return nil
}
type zipStore struct {
archive *zip.Reader
closer func() error
files map[string]*zip.File
dirs map[string][]*zip.File
}
func openZipStore(file string) (*zipStore, error) {
url, err := url.Parse(file)
if err != nil {
return nil, err
}
zs := &zipStore{
files: make(map[string]*zip.File),
dirs: make(map[string][]*zip.File),
}
switch url.Scheme {
case "", "file":
r, err := zip.OpenReader(file)
if err != nil {
return nil, err
}
zs.closer = r.Close
zs.archive = &r.Reader
case "http", "https":
ra, err := httpreader.NewReader(file)
if err != nil {
return nil, err
}
sz, err := ra.Size()
if err != nil {
return nil, err
}
r, err := zip.NewReader(ra, sz)
if err != nil {
return nil, err
}
zs.archive = r
}
log.Printf("zip %q loading files...", file)
for _, file := range zs.archive.File {
zs.files[file.Name] = file
log.Printf("%v...", file.Name)
}
log.Printf("zip %q loading directories...", file)
for _, dir := range zs.archive.File {
if !strings.HasSuffix(dir.Name, "/") {
continue
}
var fi []*zip.File
for _, file := range zs.files {
name := file.Name
if name == dir.Name {
continue
}
if strings.HasSuffix(name, "/") {
name = name[:len(name)-1]
}
d, _ := filepath.Split(name)
if d != dir.Name {
continue
}
fi = append(fi, file)
if strings.HasPrefix(file.Name, dir.Name) {
log.Printf("%v in dir %v", file.Name, dir.Name)
}
}
zs.dirs[dir.Name] = fi
log.Printf("%v...", dir.Name)
}
return zs, nil
}
func (z *zipStore) ReadFile(filename string) ([]byte, error) {
log.Printf("read of %v", filename)
zf, ok := z.files[filename]
if !ok {
return nil, os.ErrNotExist
}
zr, err := zf.Open()
if err != nil {
return nil, err
}
defer zr.Close()
zc, err := ioutil.ReadAll(zr)
if err != nil {
return nil, err
}
return zc, nil
}
func (z *zipStore) ReadDir(dirname string) ([]os.FileInfo, error) {
var fi []os.FileInfo
dir, ok := z.dirs[dirname]
if !ok {
return nil, os.ErrNotExist
}
for _, d := range dir {
fi = append(fi, d.FileInfo())
}
return fi, nil
}
func (z *zipStore) Stat(name string) (os.FileInfo, error) {
log.Printf("stat %v", name)
if f, ok := z.files[name]; ok {
return f.FileInfo(), nil
}
return nil, os.ErrNotExist
}
func (z *zipStore) Close() error {
if z.closer != nil {
return z.closer()
}
return nil
}

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@ -1,22 +0,0 @@
package main
import (
"testing"
)
func TestZipStore(t *testing.T) {
file := "fixtures/site.zip"
zs, err := openZipStore(file)
if err != nil {
t.Error(err)
return
}
ls, err := zs.ReadDir("site/foo/")
if err != nil {
t.Error(err)
return
}
t.Logf("file %v", ls[0].Name())
}

29
util.go Normal file
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@ -0,0 +1,29 @@
package main
import (
"io/ioutil"
"net/http"
"os"
)
func readfile(fs http.FileSystem, path string) ([]byte, error) {
f, err := fs.Open(path)
if err != nil {
return nil, err
}
defer f.Close()
return ioutil.ReadAll(f)
}
func readdir(fs http.FileSystem, path string) ([]os.FileInfo, error) {
f, err := fs.Open(path)
if err != nil {
return nil, err
}
defer f.Close()
return f.Readdir(-1)
}