Use fs for language, add lang_files option

The local app translations are loaded, and then if [files]/lang_files is provided (a directory containing custom translations), any found inside it are loaded over top. This makes customizing much easier.
4 years ago · 0330540f87
parent fefe2d82a4
commit 0330540f87
7 changed files with 207 additions and 83 deletions
--- a/config/config-base.json
+++ b/config/config-base.json
@ -860,6 +860,14 @@
                    "type": "text",
                    "value": "",
                    "description": "Path to directory containing custom versions of web ui pages. See wiki for more info."
+                },
+                "lang_files": {
+                    "name": "Custom language files directory",
+                    "required": false,
+                    "requires_restart": true,
+                    "type": "text",
+                    "value": "",
+                    "description": "Useful if you want to customize the text in jfa-go. Should follow the same structure as the 'lang' directory, which you can see on GitHub."
                }
            }
        }
--- a/go.mod
+++ b/go.mod
@ -51,7 +51,8 @@ require (
 	golang.org/x/net v0.0.0-20210119194325-5f4716e94777 // indirect
 	golang.org/x/sys v0.0.0-20210124154548-22da62e12c0c // indirect
 	golang.org/x/text v0.3.5 // indirect
-	golang.org/x/tools v0.1.0 // indirect
+	golang.org/x/tools v0.1.1-0.20210129181147-0cef57b5b584 // indirect
+	golang.org/x/tools/gopls v0.0.0-20210201165201-19db92ec3be1 // indirect
 	google.golang.org/protobuf v1.25.0 // indirect
 	gopkg.in/ini.v1 v1.62.0
 )
--- a/go.sum
+++ b/go.sum
@ -21,6 +21,7 @@ github.com/cpuguy83/go-md2man/v2 v2.0.0 h1:EoUDS0afbrsXAZ9YQ9jdu/mZ2sXgT1/2yyNng
 github.com/cpuguy83/go-md2man/v2 v2.0.0/go.mod h1:maD7wRr/U5Z6m/iR4s+kqSMx2CaBsrgA7czyZG/E6dU=
 github.com/creack/pty v1.1.9 h1:uDmaGzcdjhF4i/plgjmEsriH11Y0o7RKapEf/LDaM3w=
 github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
+github.com/davecgh/go-spew v0.0.0-20161028175848-04cdfd42973b/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
@ -158,14 +159,22 @@ github.com/google/go-cmp v0.3.1/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMyw
 github.com/google/go-cmp v0.4.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
 github.com/google/go-cmp v0.5.0 h1:/QaMHBdZ26BB3SSst0Iwl10Epc+xhTquomWX0oZEB6w=
 github.com/google/go-cmp v0.5.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
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+github.com/google/renameio v0.1.0/go.mod h1:KWCgfxg9yswjAJkECMjeO8J8rahYeXnNhOm40UhjYkI=
+github.com/google/safehtml v0.0.2 h1:ZOt2VXg4x24bW0m2jtzAOkhoXV0iM8vNKc0paByCZqM=
+github.com/google/safehtml v0.0.2/go.mod h1:L4KWwDsUJdECRAEpZoBn3O64bQaywRscowZjJAzjHnU=
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 github.com/hrfee/jfa-go/jfapi v0.0.0-20210109010027-4aae65518089/go.mod h1:Al1Rd1JGtpS+3KnK8t7+J0CZVDbT86QJrXHR6kZijds=
+github.com/jba/templatecheck v0.5.0 h1:sZwNjXG3xNApuwKmgUWEo2JuxmG0sgNaELl0zwRQ9x8=
+github.com/jba/templatecheck v0.5.0/go.mod h1:/1k7EajoSErFI9GLHAsiIJEaNLt3ALKNw2TV7z2SYv4=
 github.com/jordan-wright/email v0.0.0-20200602115436-fd8a7622303e h1:OGunVjqY7y4U4laftpEHv+mvZBlr7UGimJXKEGQtg48=
 github.com/jordan-wright/email v0.0.0-20200602115436-fd8a7622303e/go.mod h1:Fy2gCFfZhay8jplf/Csj6cyH/oshQTkLQYZbKkcV+SY=
 github.com/jordan-wright/email v4.0.1-0.20200917010138-e1c00e156980+incompatible h1:CL0ooBNfbNyJTJATno+m0h+zM5bW6v7fKlboKUGP/dI=
@ -179,6 +188,8 @@ github.com/json-iterator/go v1.1.9 h1:9yzud/Ht36ygwatGx56VwCZtlI/2AD15T1X2sjSuGn
 github.com/json-iterator/go v1.1.9/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/uOdHXbAo4=
 github.com/json-iterator/go v1.1.10 h1:Kz6Cvnvv2wGdaG/V8yMvfkmNiXq9Ya2KUv4rouJJr68=
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 github.com/knz/strtime v0.0.0-20200318182718-be999391ffa9 h1:GQE1iatYDRrIidq4Zf/9ZzKWyrTk2sXOYc1JADbkAjQ=
 github.com/knz/strtime v0.0.0-20200318182718-be999391ffa9/go.mod h1:4ZxfWkxwtc7dBeifERVVWRy9F9rTU9p0yCDgeCtlius=
 github.com/knz/strtime v0.0.0-20200924090105-187c67f2bf5e h1:ViPE0JEOvtw5I0EGUiFSr2VNKGNU+3oBT+oHbDXHbxk=
@ -248,21 +259,31 @@ github.com/pkg/errors v0.8.1 h1:iURUrRGxPUNPdy5/HRSm+Yj6okJ6UtLINN0Q9M4+h3I=
 github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
 github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
+github.com/pmezard/go-difflib v0.0.0-20151028094244-d8ed2627bdf0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
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 github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
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@ -313,6 +334,7 @@ github.com/valyala/bytebufferpool v1.0.0 h1:GqA5TC/0021Y/b9FG4Oi9Mr3q7XYx6Kllzaw
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@ -332,8 +354,11 @@ golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTk
 golang.org/x/lint v0.0.0-20190227174305-5b3e6a55c961/go.mod h1:wehouNa3lNwaWXcvxsM5YxQ5yQlVC4a0KAMCusXpPoU=
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@ -347,6 +372,7 @@ golang.org/x/net v0.0.0-20190613194153-d28f0bde5980/go.mod h1:z5CRVTTTmAJ677TzLL
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@ -373,6 +399,7 @@ golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJ
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 golang.org/x/tools v0.0.0-20201120155355-20be4ac4bd6e/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA=
+golang.org/x/tools v0.0.0-20210101214203-2dba1e4ea05c/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA=
 golang.org/x/tools v0.0.0-20210104081019-d8d6ddbec6ee h1:5xKxdl/RhlelmSPaxyVeq5PYSmJ4H14yeQT58qP1F6o=
 golang.org/x/tools v0.0.0-20210104081019-d8d6ddbec6ee/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA=
 golang.org/x/tools v0.1.0 h1:po9/4sTYwZU9lPhi1tOrb4hCv3qrhiQ77LZfGa2OjwY=
 golang.org/x/tools v0.1.0/go.mod h1:xkSsbof2nBLbhDlRMhhhyNLN/zl3eTqcnHD5viDpcZ0=
+golang.org/x/tools v0.1.1-0.20210129181147-0cef57b5b584 h1:JAI5SUo/oOtQXK4jvtjJMlwF5opt8qBUpxGa86SJ6zU=
+golang.org/x/tools v0.1.1-0.20210129181147-0cef57b5b584/go.mod h1:xkSsbof2nBLbhDlRMhhhyNLN/zl3eTqcnHD5viDpcZ0=
+golang.org/x/tools/gopls v0.0.0-20210201165201-19db92ec3be1 h1:YRvjnCA/wBOOkQAEKC5ts16/1IJ+NEO9eevhfDF5ues=
+golang.org/x/tools/gopls v0.0.0-20210201165201-19db92ec3be1/go.mod h1:DWl5nefYvX46i2mLQVu6Ud0ycJQ3HNPbQKzUHT3VUek=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
@ -483,8 +516,11 @@ google.golang.org/protobuf v1.25.0 h1:Ejskq+SyPohKW+1uil0JJMtmHCgJPJ/qWTxr8qp+R4
 google.golang.org/protobuf v1.25.0/go.mod h1:9JNX74DMeImyA3h4bdi1ymwjUzf21/xIlbajtzgsN7c=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20200227125254-8fa46927fb4f h1:BLraFXnmrev5lT+xlilqcH8XK9/i0At2xKjWk4p6zsU=
 gopkg.in/check.v1 v1.0.0-20200227125254-8fa46927fb4f/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/errgo.v2 v2.1.0 h1:0vLT13EuvQ0hNvakwLuFZ/jYrLp5F3kcWHXdRggjCE8=
+gopkg.in/errgo.v2 v2.1.0/go.mod h1:hNsd1EY+bozCKY1Ytp96fpM3vjJbqLJn88ws8XvfDNI=
 gopkg.in/go-playground/assert.v1 v1.2.1 h1:xoYuJVE7KT85PYWrN730RguIQO0ePzVRfFMXadIrXTM=
 gopkg.in/go-playground/assert.v1 v1.2.1/go.mod h1:9RXL0bg/zibRAgZUYszZSwO/z8Y/a8bDuhia5mkpMnE=
 gopkg.in/go-playground/validator.v8 v8.18.2 h1:lFB4DoMU6B626w8ny76MV7VX6W2VHct2GVOI3xgiMrQ=
@ -515,3 +551,9 @@ gopkg.in/yaml.v3 v3.0.0-20200615113413-eeeca48fe776/go.mod h1:K4uyk7z7BCEPqu6E+C
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc h1:/hemPrYIhOhy8zYrNj+069zDB68us2sMGsfkFJO0iZs=
 honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
+honnef.co/go/tools v0.0.1-2020.1.6 h1:W18jzjh8mfPez+AwGLxmOImucz/IFjpNlrKVnaj2YVc=
+honnef.co/go/tools v0.0.1-2020.1.6/go.mod h1:pyyisuGw24ruLjrr1ddx39WE0y9OooInRzEYLhQB2YY=
+mvdan.cc/gofumpt v0.1.0 h1:hsVv+Y9UsZ/mFZTxJZuHVI6shSQCtzZ11h1JEFPAZLw=
+mvdan.cc/gofumpt v0.1.0/go.mod h1:yXG1r1WqZVKWbVRtBWKWX9+CxGYfA51nSomhM0woR48=
+mvdan.cc/xurls/v2 v2.2.0 h1:NSZPykBXJFCetGZykLAxaL6SIpvbVy/UFEniIfHAa8A=
+mvdan.cc/xurls/v2 v2.2.0/go.mod h1:EV1RMtya9D6G5DMYPGD8zTQzaHet6Jh8gFlRgGRJeO8=
--- a/main.go
+++ b/main.go
@ -61,6 +61,7 @@ type appContext struct {
 	dataPath       string
 	systemFS       fs.FS
 	localFS        fs.FS
+	langFS         fs.FS
 	webFS          httpFS
 	cssClass       string
 	jellyfinLogin  bool
@ -202,6 +203,7 @@ func start(asDaemon, firstCall bool) {
 	app.configPath = filepath.Join(app.dataPath, "config.ini")
 	executable, _ := os.Executable()
 	app.localFS = os.DirFS(filepath.Join(filepath.Dir(executable), "data"))
+	app.langFS = os.DirFS(filepath.Join(filepath.Dir(executable), "data", "lang"))
 	app.systemFS = os.DirFS("/")
 	wfs := os.DirFS(filepath.Join(filepath.Dir(executable), "data", "web"))
 	app.webFS = httpFS{
@ -340,11 +342,17 @@ func start(asDaemon, firstCall bool) {
 		}()
 	}

-	app.storage.lang.CommonPath = filepath.Join("lang", "common")
-	app.storage.lang.FormPath = filepath.Join("lang", "form")
-	app.storage.lang.AdminPath = filepath.Join("lang", "admin")
-	app.storage.lang.EmailPath = filepath.Join("lang", "email")
-	err := app.storage.loadLang()
+	app.storage.lang.CommonPath = "common"
+	app.storage.lang.FormPath = "form"
+	app.storage.lang.AdminPath = "admin"
+	app.storage.lang.EmailPath = "email"
+	externalLang := app.config.Section("files").Key("lang_files").MustString("")
+	var err error
+	if externalLang == "" {
+		err = app.storage.loadLang(app.langFS)
+	} else {
+		err = app.storage.loadLang(app.langFS, os.DirFS(externalLang))
+	}
 	if err != nil {
 		app.info.Fatalf("Failed to load language files: %+v\n", err)
 	}
--- a/setup.go
+++ b/setup.go
@ -2,7 +2,7 @@ package main

 import (
 	"encoding/json"
-	"os"
+	"io/fs"
 	"path/filepath"
 	"strings"

@ -70,13 +70,14 @@ func (app *appContext) TestJF(gc *gin.Context) {
 	gc.JSON(200, map[string]bool{"success": true})
 }

-func (st *Storage) loadLangSetup() error {
+// The first filesystem passed should be the localFS, to ensure the local lang files are loaded first.
+func (st *Storage) loadLangSetup(filesystems ...fs.FS) error {
 	st.lang.Setup = map[string]setupLang{}
 	var english setupLang
-	load := func(fname string) error {
+	load := func(filesystem fs.FS, fname string) error {
 		index := strings.TrimSuffix(fname, filepath.Ext(fname))
 		lang := setupLang{}
-		f, err := os.ReadFile(filepath.Join(st.lang.SetupPath, fname))
+		f, err := fs.ReadFile(filesystem, filepath.Join(st.lang.SetupPath, fname))
 		if err != nil {
 			return err
 		}
@ -107,20 +108,29 @@ func (st *Storage) loadLangSetup() error {
 		st.lang.Setup[index] = lang
 		return nil
 	}
-	err := load("en-us.json")
-	if err != nil {
-		return err
+	engFound := false
+	var err error
+	for _, filesystem := range filesystems {
+		err = load(filesystem, "en-us.json")
+		if err == nil {
+			engFound = true
+		}
 	}
-	english = st.lang.Setup["en-us"]
-	files, err := os.ReadDir(st.lang.SetupPath)
-	if err != nil {
+	if !engFound {
 		return err
 	}
-	for _, f := range files {
-		if f.Name() != "en-us.json" {
-			err = load(f.Name())
-			if err != nil {
-				return err
+	english = st.lang.Setup["en-us"]
+	for _, filesystem := range filesystems {
+		files, err := fs.ReadDir(filesystem, st.lang.SetupPath)
+		if err != nil {
+			return err
+		}
+		for _, f := range files {
+			if f.Name() != "en-us.json" {
+				err = load(filesystem, f.Name())
+				if err != nil {
+					return err
+				}
 			}
 		}
 	}
--- a/static.go
+++ b/static.go
@ -6,8 +6,10 @@ import (
 	"strings"
 )

+// Since the gin-static middleware uses a version of http.Filesystem with an extra Exists() func, we extend it here.
+
 type httpFS struct {
-	hfs http.FileSystem
+	hfs http.FileSystem // Created by converting fs.FS using http.FS()
 	fs  fs.FS
 }

--- a/storage.go
+++ b/storage.go
@ -2,6 +2,7 @@ package main

 import (
 	"encoding/json"
+	"io/fs"
 	"log"
 	"os"
 	"path/filepath"
@ -62,20 +63,20 @@ type Lang struct {
 	Setup           setupLangs
 }

-func (st *Storage) loadLang() (err error) {
-	err = st.loadLangCommon()
+func (st *Storage) loadLang(filesystems ...fs.FS) (err error) {
+	err = st.loadLangCommon(filesystems...)
 	if err != nil {
 		return
 	}
-	err = st.loadLangAdmin()
+	err = st.loadLangAdmin(filesystems...)
 	if err != nil {
 		return
 	}
-	err = st.loadLangForm()
+	err = st.loadLangForm(filesystems...)
 	if err != nil {
 		return
 	}
-	err = st.loadLangEmail()
+	err = st.loadLangEmail(filesystems...)
 	return
 }

@ -120,13 +121,13 @@ func patchQuantityStrings(english, other *map[string]quantityString) {
 	}
 }

-func (st *Storage) loadLangCommon() error {
+func (st *Storage) loadLangCommon(filesystems ...fs.FS) error {
 	st.lang.Common = map[string]commonLang{}
 	var english commonLang
-	load := func(fname string) error {
+	load := func(filesystem fs.FS, fname string) error {
 		index := strings.TrimSuffix(fname, filepath.Ext(fname))
 		lang := commonLang{}
-		f, err := os.ReadFile(filepath.Join(st.lang.CommonPath, fname))
+		f, err := fs.ReadFile(filesystem, filepath.Join(st.lang.CommonPath, fname))
 		if err != nil {
 			return err
 		}
@ -143,33 +144,46 @@ func (st *Storage) loadLangCommon() error {
 		st.lang.Common[index] = lang
 		return nil
 	}
-	err := load("en-us.json")
-	if err != nil {
-		return err
+	engFound := false
+	var err error
+	for _, filesystem := range filesystems {
+		err = load(filesystem, "en-us.json")
+		if err == nil {
+			engFound = true
+		}
 	}
-	english = st.lang.Common["en-us"]
-	files, err := os.ReadDir(st.lang.CommonPath)
-	if err != nil {
+	if !engFound {
 		return err
 	}
-	for _, f := range files {
-		if f.Name() != "en-us.json" {
-			err = load(f.Name())
-			if err != nil {
-				return err
+	english = st.lang.Common["en-us"]
+	commonLoaded := false
+	for _, filesystem := range filesystems {
+		files, err := fs.ReadDir(filesystem, st.lang.CommonPath)
+		if err != nil {
+			continue
+		}
+		for _, f := range files {
+			if f.Name() != "en-us.json" {
+				err = load(filesystem, f.Name())
+				if err == nil {
+					commonLoaded = true
+				}
 			}
 		}
 	}
+	if !commonLoaded {
+		return err
+	}
 	return nil
 }

-func (st *Storage) loadLangAdmin() error {
+func (st *Storage) loadLangAdmin(filesystems ...fs.FS) error {
 	st.lang.Admin = map[string]adminLang{}
 	var english adminLang
-	load := func(fname string) error {
+	load := func(filesystem fs.FS, fname string) error {
 		index := strings.TrimSuffix(fname, filepath.Ext(fname))
 		lang := adminLang{}
-		f, err := os.ReadFile(filepath.Join(st.lang.AdminPath, fname))
+		f, err := fs.ReadFile(filesystem, filepath.Join(st.lang.AdminPath, fname))
 		if err != nil {
 			return err
 		}
@ -194,33 +208,46 @@ func (st *Storage) loadLangAdmin() error {
 		st.lang.Admin[index] = lang
 		return nil
 	}
-	err := load("en-us.json")
-	if err != nil {
-		return err
+	engFound := false
+	var err error
+	for _, filesystem := range filesystems {
+		err = load(filesystem, "en-us.json")
+		if err == nil {
+			engFound = true
+		}
 	}
-	english = st.lang.Admin["en-us"]
-	files, err := os.ReadDir(st.lang.AdminPath)
-	if err != nil {
+	if !engFound {
 		return err
 	}
-	for _, f := range files {
-		if f.Name() != "en-us.json" {
-			err = load(f.Name())
-			if err != nil {
-				return err
+	english = st.lang.Admin["en-us"]
+	adminLoaded := false
+	for _, filesystem := range filesystems {
+		files, err := fs.ReadDir(filesystem, st.lang.AdminPath)
+		if err != nil {
+			continue
+		}
+		for _, f := range files {
+			if f.Name() != "en-us.json" {
+				err = load(filesystem, f.Name())
+				if err == nil {
+					adminLoaded = true
+				}
 			}
 		}
 	}
+	if !adminLoaded {
+		return err
+	}
 	return nil
 }

-func (st *Storage) loadLangForm() error {
+func (st *Storage) loadLangForm(filesystems ...fs.FS) error {
 	st.lang.Form = map[string]formLang{}
 	var english formLang
-	load := func(fname string) error {
+	load := func(filesystem fs.FS, fname string) error {
 		index := strings.TrimSuffix(fname, filepath.Ext(fname))
 		lang := formLang{}
-		f, err := os.ReadFile(filepath.Join(st.lang.FormPath, fname))
+		f, err := fs.ReadFile(filesystem, filepath.Join(st.lang.FormPath, fname))
 		if err != nil {
 			return err
 		}
@ -250,33 +277,46 @@ func (st *Storage) loadLangForm() error {
 		st.lang.Form[index] = lang
 		return nil
 	}
-	err := load("en-us.json")
-	if err != nil {
-		return err
+	engFound := false
+	var err error
+	for _, filesystem := range filesystems {
+		err = load(filesystem, "en-us.json")
+		if err == nil {
+			engFound = true
+		}
 	}
-	english = st.lang.Form["en-us"]
-	files, err := os.ReadDir(st.lang.FormPath)
-	if err != nil {
+	if !engFound {
 		return err
 	}
-	for _, f := range files {
-		if f.Name() != "en-us.json" {
-			err = load(f.Name())
-			if err != nil {
-				return err
+	english = st.lang.Form["en-us"]
+	formLoaded := false
+	for _, filesystem := range filesystems {
+		files, err := fs.ReadDir(filesystem, st.lang.FormPath)
+		if err != nil {
+			continue
+		}
+		for _, f := range files {
+			if f.Name() != "en-us.json" {
+				err = load(filesystem, f.Name())
+				if err == nil {
+					formLoaded = true
+				}
 			}
 		}
 	}
+	if !formLoaded {
+		return err
+	}
 	return nil
 }

-func (st *Storage) loadLangEmail() error {
+func (st *Storage) loadLangEmail(filesystems ...fs.FS) error {
 	st.lang.Email = map[string]emailLang{}
 	var english emailLang
-	load := func(fname string) error {
+	load := func(filesystem fs.FS, fname string) error {
 		index := strings.TrimSuffix(fname, filepath.Ext(fname))
 		lang := emailLang{}
-		f, err := os.ReadFile(filepath.Join(st.lang.EmailPath, fname))
+		f, err := fs.ReadFile(filesystem, filepath.Join(st.lang.EmailPath, fname))
 		if err != nil {
 			return err
 		}
@ -299,23 +339,36 @@ func (st *Storage) loadLangEmail() error {
 		st.lang.Email[index] = lang
 		return nil
 	}
-	err := load("en-us.json")
-	if err != nil {
-		return err
+	engFound := false
+	var err error
+	for _, filesystem := range filesystems {
+		err = load(filesystem, "en-us.json")
+		if err == nil {
+			engFound = true
+		}
 	}
-	english = st.lang.Email["en-us"]
-	files, err := os.ReadDir(st.lang.EmailPath)
-	if err != nil {
+	if !engFound {
 		return err
 	}
-	for _, f := range files {
-		if f.Name() != "en-us.json" {
-			err = load(f.Name())
-			if err != nil {
-				return err
+	english = st.lang.Email["en-us"]
+	emailLoaded := false
+	for _, filesystem := range filesystems {
+		files, err := fs.ReadDir(filesystem, st.lang.EmailPath)
+		if err != nil {
+			continue
+		}
+		for _, f := range files {
+			if f.Name() != "en-us.json" {
+				err = load(filesystem, f.Name())
+				if err == nil {
+					emailLoaded = true
+				}
 			}
 		}
 	}
+	if !emailLoaded {
+		return err
+	}
 	return nil
 }