move static web files from rakyll/statik to go:embed

There is no need for the rakyll/statik package starting with Go 1.16,
which provides us with tools for embedding files
without third-party libraries.
This commit is contained in:
Dmitry Verkhoturov 2022-07-27 03:35:52 +02:00 committed by Umputun
parent 27b28dba0d
commit a9836aaea0
15 changed files with 62 additions and 568 deletions

3
.gitignore vendored
View File

@ -4,7 +4,6 @@ target
/logs/
/target/
/var/
/web/
debug
debug.test
.vscode
@ -18,7 +17,7 @@ remark42
/bin/
/backend/var/
/backend/app/var/
/backend/web/
/backend/app/cmd/web/
/backend/*.html.tmpl
compose-private-backend.yml
compose-private-frontend.yml

View File

@ -55,6 +55,9 @@ ARG SKIP_BACKEND_TEST
ARG BACKEND_TEST_TIMEOUT
ADD backend /build/backend
# to embed the frontend files statically into Remark42 binary
COPY --from=build-frontend /srv/frontend/apps/remark42/public/ /build/backend/app/cmd/web/
RUN find /build/backend/app/cmd/web/ -regex '.*\.\(html\|js\|mjs\)$' -print -exec sed -i "s|{% REMARK_URL %}|http://127.0.0.1:8080|g" {} \;
WORKDIR /build/backend
# install gcc in order to be able to go test package with -race
@ -108,6 +111,5 @@ RUN ln -s /srv/remark42 /usr/bin/remark42
EXPOSE 8080
HEALTHCHECK --interval=30s --timeout=3s CMD curl --fail http://localhost:8080/ping || exit 1
RUN chmod +x /srv/init.sh
CMD ["/srv/remark42", "server"]

View File

@ -30,14 +30,9 @@ ADD backend /build/backend
ADD README.md /build/
ADD LICENSE /build/
COPY --from=build-frontend /srv/frontend/apps/remark42/public/ /build/backend/web/
COPY --from=build-frontend /srv/frontend/apps/remark42/public/ /build/backend/app/cmd/web/
RUN \
export WEB_ROOT=/build/backend/web && \
find . -regex '.*\.\(html\|js\|mjs\)$' -print -exec sed -i "s|{% REMARK_URL %}|http://127.0.0.1:8080|g" {} \; && \
statik --src=${WEB_ROOT} --dest=/build/backend/app/rest -p api -f && \
ls -la /build/backend/app/rest/api/statik.go && \
ls -la /build/backend/web/
RUN find /build/backend/app/cmd/web/ -regex '.*\.\(html\|js\|mjs\)$' -print -exec sed -i "s|{% REMARK_URL %}|http://127.0.0.1:8080|g" {} \;
RUN \
version=$("/script/version.sh") && echo "version=${version}" && \

View File

@ -2,6 +2,7 @@ package cmd
import (
"context"
"embed"
"fmt"
"net/http"
"net/url"
@ -41,6 +42,9 @@ import (
"github.com/umputun/remark42/backend/app/templates"
)
//go:embed web
var webFS embed.FS
// ServerCommand with command line flags and env
type ServerCommand struct {
Store StoreGroup `group:"store" namespace:"store" env-namespace:"STORE"`
@ -556,6 +560,7 @@ func (s *ServerCommand) newServerApp(ctx context.Context) (*serverApp, error) {
Version: s.Revision,
DataService: dataService,
WebRoot: s.WebRoot,
WebFS: webFS,
RemarkURL: s.RemarkURL,
ImageProxy: imgProxy,
CommentFormatter: commentFormatter,

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@ -0,0 +1 @@
This stub page would be replaced by the frontend statically built HTML during the Docker image build.

View File

@ -3,10 +3,13 @@ package api
import (
"bytes"
"context"
"embed"
"encoding/json"
"fmt"
"io/fs"
"net/http"
"net/mail"
"os"
"regexp"
"strings"
"sync"
@ -23,7 +26,6 @@ import (
log "github.com/go-pkgz/lgr"
R "github.com/go-pkgz/rest"
"github.com/go-pkgz/rest/logger"
"github.com/rakyll/statik/fs"
"github.com/umputun/remark42/backend/app/notify"
"github.com/umputun/remark42/backend/app/rest"
@ -49,6 +51,7 @@ type Rest struct {
AnonVote bool
WebRoot string
WebFS embed.FS
RemarkURL string
ReadOnlyAge int
SharedSecret string
@ -351,8 +354,8 @@ func (s *Rest) routes() chi.Router {
rroot.Post("/email/unsubscribe.html", s.privRest.emailUnsubscribeCtrl)
})
// file server for static content from /web
addFileServer(router, "/web", http.Dir(s.WebRoot), s.Version)
// file server for static content from s.WebRoot on path /web
addFileServer(router, s.WebFS, s.WebRoot, s.Version)
return router
}
@ -463,34 +466,28 @@ func (s *Rest) configCtrl(w http.ResponseWriter, r *http.Request) {
render.JSON(w, r, cnf)
}
// serves static files from /web or embedded by statik
func addFileServer(r chi.Router, path string, root http.FileSystem, version string) {
// serves static files from the webRoot directory or files embedded into the compiled binary if that directory is absent
func addFileServer(r chi.Router, embedFS embed.FS, webRoot, version string) {
var webFS http.Handler
statikFS, err := fs.New()
if err != nil {
log.Printf("[DEBUG] no embedded assets loaded, %s", err)
log.Printf("[INFO] run file server for %s, path %s", root, path)
webFS = http.FileServer(root)
if _, err := os.Stat(webRoot); err == nil {
log.Printf("[INFO] run file server from %s from the disk", webRoot)
webFS = http.FileServer(http.Dir(webRoot))
} else {
log.Printf("[INFO] run file server for %s, embedded", root)
webFS = http.FileServer(statikFS)
log.Printf("[INFO] run file server, embedded")
var contentFS, _ = fs.Sub(embedFS, "web")
webFS = http.FileServer(http.FS(contentFS))
}
origPath := path
webFS = http.StripPrefix(path, webFS)
if path != "/" && path[len(path)-1] != '/' {
r.Get(path, http.RedirectHandler(path+"/", http.StatusMovedPermanently).ServeHTTP)
path += "/"
}
path += "*"
webFS = http.StripPrefix("/web", webFS)
r.Get("/web", http.RedirectHandler("/web/", http.StatusMovedPermanently).ServeHTTP)
r.With(tollbooth_chi.LimitHandler(tollbooth.NewLimiter(20, nil)),
middleware.Timeout(10*time.Second),
cacheControl(time.Hour, version),
).Get(path, func(w http.ResponseWriter, r *http.Request) {
).Get("/web/*", func(w http.ResponseWriter, r *http.Request) {
// don't show dirs, just serve files
if strings.HasSuffix(r.URL.Path, "/") && len(r.URL.Path) > 1 && r.URL.Path != (origPath+"/") {
if strings.HasSuffix(r.URL.Path, "/") && len(r.URL.Path) > 1 && r.URL.Path != ("/web/") {
http.NotFound(w, r)
return
}

View File

@ -26,7 +26,6 @@ require (
github.com/jessevdk/go-flags v1.5.0
github.com/kyokomi/emoji/v2 v2.2.9
github.com/microcosm-cc/bluemonday v1.0.19
github.com/rakyll/statik v0.1.7
github.com/rs/xid v1.4.0
github.com/russross/blackfriday/v2 v2.1.0
github.com/skip2/go-qrcode v0.0.0-20200617195104-da1b6568686e

View File

@ -316,8 +316,6 @@ github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINE
github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
github.com/rakyll/statik v0.1.7 h1:OF3QCZUuyPxuGEP7B4ypUa7sB/iHtqOTDYZXGM8KOdQ=
github.com/rakyll/statik v0.1.7/go.mod h1:AlZONWzMtEnMs7W4e/1LURLiI49pIMmp6V9Unghqrcc=
github.com/rogpeppe/fastuuid v1.2.0/go.mod h1:jVj6XXZzXRy/MSR5jhDC/2q6DgLz+nrA6LYCDYWNEvQ=
github.com/rogpeppe/go-internal v1.3.0/go.mod h1:M8bDsm7K2OlrFYOpmOWEs/qY81heoFRclV5y23lUDJ4=
github.com/rs/xid v1.4.0 h1:qd7wPTDkN6KQx2VmMBLrpHkiyQwgFXRnkOLacUiaSNY=

View File

@ -1,202 +0,0 @@
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Copyright 2014 Google Inc.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
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View File

@ -1,238 +0,0 @@
// Copyright 2014 Google Inc. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Package fs contains an HTTP file system that works with zip contents.
package fs
import (
"archive/zip"
"bytes"
"errors"
"fmt"
"io"
"io/ioutil"
"net/http"
"os"
"path"
"path/filepath"
"sort"
"strings"
"time"
)
var zipData = map[string]string{}
// file holds unzipped read-only file contents and file metadata.
type file struct {
os.FileInfo
data []byte
fs *statikFS
}
type statikFS struct {
files map[string]file
dirs map[string][]string
}
const defaultNamespace = "default"
// IsDefaultNamespace returns true if the assetNamespace is
// the default one
func IsDefaultNamespace(assetNamespace string) bool {
return assetNamespace == defaultNamespace
}
// Register registers zip contents data, later used to initialize
// the statik file system.
func Register(data string) {
RegisterWithNamespace(defaultNamespace, data)
}
// RegisterWithNamespace registers zip contents data and set asset namespace,
// later used to initialize the statik file system.
func RegisterWithNamespace(assetNamespace string, data string) {
zipData[assetNamespace] = data
}
// New creates a new file system with the default registered zip contents data.
// It unzips all files and stores them in an in-memory map.
func New() (http.FileSystem, error) {
return NewWithNamespace(defaultNamespace)
}
// NewWithNamespace creates a new file system with the registered zip contents data.
// It unzips all files and stores them in an in-memory map.
func NewWithNamespace(assetNamespace string) (http.FileSystem, error) {
asset, ok := zipData[assetNamespace]
if !ok {
return nil, errors.New("statik/fs: no zip data registered")
}
zipReader, err := zip.NewReader(strings.NewReader(asset), int64(len(asset)))
if err != nil {
return nil, err
}
files := make(map[string]file, len(zipReader.File))
dirs := make(map[string][]string)
fs := &statikFS{files: files, dirs: dirs}
for _, zipFile := range zipReader.File {
fi := zipFile.FileInfo()
f := file{FileInfo: fi, fs: fs}
f.data, err = unzip(zipFile)
if err != nil {
return nil, fmt.Errorf("statik/fs: error unzipping file %q: %s", zipFile.Name, err)
}
files["/"+zipFile.Name] = f
}
for fn := range files {
// go up directories recursively in order to care deep directory
for dn := path.Dir(fn); dn != fn; {
if _, ok := files[dn]; !ok {
files[dn] = file{FileInfo: dirInfo{dn}, fs: fs}
} else {
break
}
fn, dn = dn, path.Dir(dn)
}
}
for fn := range files {
dn := path.Dir(fn)
if fn != dn {
fs.dirs[dn] = append(fs.dirs[dn], path.Base(fn))
}
}
for _, s := range fs.dirs {
sort.Strings(s)
}
return fs, nil
}
var _ = os.FileInfo(dirInfo{})
type dirInfo struct {
name string
}
func (di dirInfo) Name() string { return path.Base(di.name) }
func (di dirInfo) Size() int64 { return 0 }
func (di dirInfo) Mode() os.FileMode { return 0755 | os.ModeDir }
func (di dirInfo) ModTime() time.Time { return time.Time{} }
func (di dirInfo) IsDir() bool { return true }
func (di dirInfo) Sys() interface{} { return nil }
// Open returns a file matching the given file name, or os.ErrNotExists if
// no file matching the given file name is found in the archive.
// If a directory is requested, Open returns the file named "index.html"
// in the requested directory, if that file exists.
func (fs *statikFS) Open(name string) (http.File, error) {
name = filepath.ToSlash(filepath.Clean(name))
if f, ok := fs.files[name]; ok {
return newHTTPFile(f), nil
}
return nil, os.ErrNotExist
}
func newHTTPFile(file file) *httpFile {
if file.IsDir() {
return &httpFile{file: file, isDir: true}
}
return &httpFile{file: file, reader: bytes.NewReader(file.data)}
}
// httpFile represents an HTTP file and acts as a bridge
// between file and http.File.
type httpFile struct {
file
reader *bytes.Reader
isDir bool
dirIdx int
}
// Read reads bytes into p, returns the number of read bytes.
func (f *httpFile) Read(p []byte) (n int, err error) {
if f.reader == nil && f.isDir {
return 0, io.EOF
}
return f.reader.Read(p)
}
// Seek seeks to the offset.
func (f *httpFile) Seek(offset int64, whence int) (ret int64, err error) {
return f.reader.Seek(offset, whence)
}
// Stat stats the file.
func (f *httpFile) Stat() (os.FileInfo, error) {
return f, nil
}
// IsDir returns true if the file location represents a directory.
func (f *httpFile) IsDir() bool {
return f.isDir
}
// Readdir returns an empty slice of files, directory
// listing is disabled.
func (f *httpFile) Readdir(count int) ([]os.FileInfo, error) {
var fis []os.FileInfo
if !f.isDir {
return fis, nil
}
di, ok := f.FileInfo.(dirInfo)
if !ok {
return nil, fmt.Errorf("failed to read directory: %q", f.Name())
}
// If count is positive, the specified number of files will be returned,
// and if non-positive, all remaining files will be returned.
// The reading position of which file is returned is held in dirIndex.
fnames := f.file.fs.dirs[di.name]
flen := len(fnames)
// If dirIdx reaches the end and the count is a positive value,
// an io.EOF error is returned.
// In other cases, no error will be returned even if, for example,
// you specified more counts than the number of remaining files.
start := f.dirIdx
if start >= flen && count > 0 {
return fis, io.EOF
}
var end int
if count <= 0 {
end = flen
} else {
end = start + count
}
if end > flen {
end = flen
}
for i := start; i < end; i++ {
fis = append(fis, f.file.fs.files[path.Join(di.name, fnames[i])].FileInfo)
}
f.dirIdx += len(fis)
return fis, nil
}
func (f *httpFile) Close() error {
return nil
}
func unzip(zf *zip.File) ([]byte, error) {
rc, err := zf.Open()
if err != nil {
return nil, err
}
defer rc.Close()
return ioutil.ReadAll(rc)
}

View File

@ -1,79 +0,0 @@
// Copyright 2014 Google Inc. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package fs
import (
"bytes"
"io"
"net/http"
"path"
"path/filepath"
)
// Walk walks the file tree rooted at root,
// calling walkFn for each file or directory in the tree, including root.
// All errors that arise visiting files and directories are filtered by walkFn.
//
// As with filepath.Walk, if the walkFn returns filepath.SkipDir, then the directory is skipped.
func Walk(hfs http.FileSystem, root string, walkFn filepath.WalkFunc) error {
dh, err := hfs.Open(root)
if err != nil {
return err
}
di, err := dh.Stat()
if err != nil {
return err
}
fis, err := dh.Readdir(-1)
dh.Close()
if err = walkFn(root, di, err); err != nil {
if err == filepath.SkipDir {
return nil
}
return err
}
for _, fi := range fis {
fn := path.Join(root, fi.Name())
if fi.IsDir() {
if err = Walk(hfs, fn, walkFn); err != nil {
if err == filepath.SkipDir {
continue
}
return err
}
continue
}
if err = walkFn(fn, fi, nil); err != nil {
if err == filepath.SkipDir {
continue
}
return err
}
}
return nil
}
// ReadFile reads the contents of the file of hfs specified by name.
// Just as ioutil.ReadFile does.
func ReadFile(hfs http.FileSystem, name string) ([]byte, error) {
fh, err := hfs.Open(name)
if err != nil {
return nil, err
}
var buf bytes.Buffer
_, err = io.Copy(&buf, fh)
fh.Close()
return buf.Bytes(), err
}

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@ -168,9 +168,6 @@ github.com/pkg/errors
# github.com/pmezard/go-difflib v1.0.0
## explicit
github.com/pmezard/go-difflib/difflib
# github.com/rakyll/statik v0.1.7
## explicit; go 1.12
github.com/rakyll/statik/fs
# github.com/rs/xid v1.4.0
## explicit; go 1.12
github.com/rs/xid

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@ -3,17 +3,29 @@ echo "prepare environment"
# replace {% REMARK_URL %} by content of REMARK_URL variable
find . -regex '.*\.\(html\|js\|mjs\)$' -print -exec sed -i "s|{% REMARK_URL %}|${REMARK_URL}|g" {} \;
if [ -n "${SITE_ID}" ]; then
#replace "site_id: 'remark'" by SITE_ID
sed -i "s|'remark'|'${SITE_ID}'|g" /srv/web/*.html
# replace 'site_id: "remark"' by the first SITE from the comma-separated list of IDs, if present
if [ -n "${SITE}" ]; then
sep=','
case ${SITE} in
*"$sep"*)
export single_site_id=${SITE%%"$sep"*}
echo "multiple site IDs passed in SITE (\"${SITE}\"): using \"${single_site_id}\" in frontend site_id"
;;
*)
echo "using non-standard frontend site_id from SITE variable (\"${SITE}\") instead of \"remark\""
export single_site_id=$SITE
;;
esac
echo "single_site_id: ${single_site_id}"
sed -i "s|site_id:\"[^\"]*\"|site_id:\"${single_site_id}\"|g" /srv/web/*.html
fi
if [ -d "/srv/var" ]; then
echo "changing ownership of /srv/var to app:app (remark42 user inside the container)"
chown -R app:app /srv/var || echo "WARNING: /srv/var ownership change failed, if application will fail that might be the reason"
echo "changing ownership of /srv/var to app:app (remark42 user inside the container)"
chown -R app:app /srv/var || echo "WARNING: /srv/var ownership change failed, if application will fail that might be the reason"
else
echo "ERROR: /srv/var doesn't exist, which means that state of the application"
echo "ERROR: will be lost on container stop or restart."
echo "ERROR: Please mount local directory to /srv/var in order for it to work."
exit 199
echo "ERROR: /srv/var doesn't exist, which means that state of the application"
echo "ERROR: will be lost on container stop or restart."
echo "ERROR: Please mount local directory to /srv/var in order for it to work."
exit 199
fi

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@ -7,6 +7,14 @@ RUN yarn build
RUN ls -la /site
FROM ghcr.io/umputun/reproxy
LABEL org.opencontainers.image.authors="Umputun <umputun@gmail.com>" \
org.opencontainers.image.description="Remark42 site" \
org.opencontainers.image.documentation="https://github.com/umputun/remark42/tree/master/site" \
org.opencontainers.image.licenses="MIT" \
org.opencontainers.image.source="https://github.com/umputun/remark42.git" \
org.opencontainers.image.title="Remark42 site" \
org.opencontainers.image.url="https://remark42.com/"
COPY --from=build /site/build /srv/site
EXPOSE 8080
USER app

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@ -36,13 +36,13 @@ In order to have working Remark42 installation you need once to copy frontend st
# frontend files
docker pull umputun/remark42:master
docker create -ti --name remark42files umputun/remark42:master sh
docker cp remark42files:/srv/web/ ./backend/
docker cp remark42files:/srv/web/ ./backend/app/cmd/
docker rm -f remark42files
# fix frontend files to point to the right URL
## Mac version
find -E ./backend/web -regex '.*\.(html|js|mjs)$' -print -exec sed -i '' "s|{% REMARK_URL %}|http://127.0.0.1:8080|g" {} \;
find -E ./backend/app/cmd/web -regex '.*\.(html|js|mjs)$' -print -exec sed -i '' "s|{% REMARK_URL %}|http://127.0.0.1:8080|g" {} \;
## Linux version
find ./backend/web -regex '.*\.\(html\|js\|mjs\)$' -print -exec sed -i "s|{% REMARK_URL %}|http://127.0.0.1:8080|g" {} \;
find ./backend/app/cmd/web -regex '.*\.\(html\|js\|mjs\)$' -print -exec sed -i "s|{% REMARK_URL %}|http://127.0.0.1:8080|g" {} \;
```
To run backend - `cd backend; go run app/main.go server --dbg --secret=12345 --url=http://127.0.0.1:8080 --admin-passwd=password --site=remark`. It stars backend service with embedded bolt store on port `8080` with basic auth, allowing to authenticate and run requests directly, like this: