From e6624dd4df077e741b3dcae7b157dbfff3597e5f Mon Sep 17 00:00:00 2001
From: Takanori Hirano <me@hrntknr.net>
Date: Tue, 26 Jul 2022 01:23:06 +0900
Subject: [PATCH 1/5] experimental version

---
 .github/workflows/build.yml                |   39 +-
 .gitignore                                 |   24 +-
 Cargo.lock                                 | 2249 --------------------
 Cargo.toml                                 |   25 -
 backends/backends.go                       |  138 ++
 functions.go                               |  137 ++
 go.mod                                     |   22 +
 go.sum                                     |   68 +
 main.go                                    |   54 +
 src/ntf-shell-hook.sh => ntf-shell-hook.sh |    0
 src/backends/common.rs                     |   55 -
 src/backends/line.rs                       |   45 -
 src/backends/mod.rs                        |    6 -
 src/backends/pushbullet.rs                 |   51 -
 src/backends/pushover.rs                   |   95 -
 src/backends/slack.rs                      |   65 -
 src/backends/syslog.rs                     |   99 -
 src/lib.rs                                 |    1 -
 src/main.rs                                |  433 ----
 utils.go                                   |   88 +
 utils_test.go                              |   96 +
 21 files changed, 639 insertions(+), 3151 deletions(-)
 delete mode 100644 Cargo.lock
 delete mode 100644 Cargo.toml
 create mode 100644 backends/backends.go
 create mode 100644 functions.go
 create mode 100644 go.mod
 create mode 100644 go.sum
 create mode 100644 main.go
 rename src/ntf-shell-hook.sh => ntf-shell-hook.sh (100%)
 delete mode 100644 src/backends/common.rs
 delete mode 100644 src/backends/line.rs
 delete mode 100644 src/backends/mod.rs
 delete mode 100644 src/backends/pushbullet.rs
 delete mode 100644 src/backends/pushover.rs
 delete mode 100644 src/backends/slack.rs
 delete mode 100644 src/backends/syslog.rs
 delete mode 100644 src/lib.rs
 delete mode 100644 src/main.rs
 create mode 100644 utils.go
 create mode 100644 utils_test.go

diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index fe94629..b38c6e0 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -16,38 +16,25 @@ jobs:
             os: macos-latest
     runs-on: ${{ matrix.os }}
     steps:
-      - uses: actions/checkout@v2
-
-      - name: Cache cargo registry
-        uses: actions/cache@v1
-        with:
-          path: ~/.cargo/registry
-          key: ${{ runner.os }}-cargo-registry-${{ hashFiles('**/Cargo.lock') }}
-      - name: Cache cargo index
-        uses: actions/cache@v1
+      - uses: actions/setup-go@v2
         with:
-          path: ~/.cargo/git
-          key: ${{ runner.os }}-cargo-index-${{ hashFiles('**/Cargo.lock') }}
-      - name: Cache cargo build
-        uses: actions/cache@v1
-        with:
-          path: target
-          key: ${{ runner.os }}-cargo-build-target-${{ hashFiles('**/Cargo.lock') }}
+          go-version: ^1.18
 
-      - uses: actions-rs/toolchain@v1
-        with:
-          toolchain: stable
-          override: true
-      - uses: actions-rs/cargo@v1
-        with:
-          command: build
-          args: --release
-      - run: strip target/release/ntf
+      - uses: actions/checkout@v2
+
+      - run: go build -ldflags "-s -w"
 
       - uses: actions/upload-artifact@v1
         with:
           name: ntf-${{ matrix.target }}
-          path: target/release/ntf
+          path: ntf
+
+      - uses: actions/cache@v2
+        with:
+          path: ~/go/pkg/mod
+          key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
+          restore-keys: |
+            ${{ runner.os }}-go-
 
   create-release:
     needs:
diff --git a/.gitignore b/.gitignore
index ea8c4bf..21217ff 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,23 @@
-/target
+/ntf
+
+# If you prefer the allow list template instead of the deny list, see community template:
+# https://github.com/github/gitignore/blob/main/community/Golang/Go.AllowList.gitignore
+#
+# Binaries for programs and plugins
+*.exe
+*.exe~
+*.dll
+*.so
+*.dylib
+
+# Test binary, built with `go test -c`
+*.test
+
+# Output of the go coverage tool, specifically when used with LiteIDE
+*.out
+
+# Dependency directories (remove the comment below to include it)
+# vendor/
+
+# Go workspace file
+go.work
diff --git a/Cargo.lock b/Cargo.lock
deleted file mode 100644
index b8addc4..0000000
--- a/Cargo.lock
+++ /dev/null
@@ -1,2249 +0,0 @@
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diff --git a/Cargo.toml b/Cargo.toml
deleted file mode 100644
index d6f5ed9..0000000
--- a/Cargo.toml
+++ /dev/null
@@ -1,25 +0,0 @@
-[package]
-name = "ntf"
-version = "0.1.9"
-authors = ["Takanori Hirano <hrn.takanori@gmail.com>"]
-edition = "2018"
-
-[dependencies]
-surf = "2.3.2"
-config = "0.12.0"
-serde = { version = "1.0.136", features = ["derive"] }
-thiserror = "1.0.30"
-async-trait = "0.1.52"
-async-std = "1.10.0"
-dirs = "4.0.0"
-hostname = "0.3.1"
-username = "0.2.0"
-clap = "3.1.6"
-failure = "0.1.8"
-syslog = "6.0.1"
-
-[dev-dependencies]
-regex = "1.5.5"
-
-[profile.release]
-lto = true
diff --git a/backends/backends.go b/backends/backends.go
new file mode 100644
index 0000000..190694f
--- /dev/null
+++ b/backends/backends.go
@@ -0,0 +1,138 @@
+package backends
+
+import (
+	"fmt"
+	"log"
+	"reflect"
+
+	"github.com/go-playground/validator/v10"
+	"github.com/mitchellh/mapstructure"
+	"github.com/spf13/cobra"
+)
+
+type BackendInterface interface {
+	GetConfig() interface{}
+	Send(config interface{}, title string, message string, status *bool) error
+}
+
+var backends = make(map[string]BackendInterface)
+var validate = validator.New()
+
+func RegisterFlags(cmd ...*cobra.Command) {
+	for _, c := range cmd {
+		c.Flags().StringSlice("backends", []string{}, "")
+	}
+	for backendKey, b := range backends {
+		t := reflect.TypeOf(b.GetConfig())
+		for i := 0; i < t.NumField(); i++ {
+			registerFlag(backendKey, t.Field(i).Tag.Get("mapstructure"), t.Field(i), cmd...)
+		}
+	}
+}
+
+func registerFlag(backendKey string, key string, field reflect.StructField, cmd ...*cobra.Command) {
+	kind := field.Type.Kind()
+	if kind == reflect.Ptr {
+		kind = field.Type.Elem().Kind()
+	}
+	switch kind {
+	case reflect.String:
+		for _, c := range cmd {
+			c.Flags().String(fmt.Sprintf("%s.%s", backendKey, key), "", "")
+		}
+	case reflect.Int:
+		for _, c := range cmd {
+			c.Flags().Int(fmt.Sprintf("%s.%s", backendKey, key), 0, "")
+		}
+	}
+}
+
+func OverrideConfigs(cfg *map[string]interface{}, cmd *cobra.Command) {
+	bflag := cmd.Flags().Lookup("backends")
+	var bs []interface{}
+	if bflag.Changed {
+		val, err := cmd.Flags().GetStringSlice("backends")
+		if err != nil {
+			log.Fatal(err)
+		}
+		for _, v := range val {
+			bs = append(bs, v)
+		}
+		(*cfg)["backends"] = bs
+	}
+	for backendKey, b := range backends {
+		if (*cfg)[backendKey] == nil {
+			(*cfg)[backendKey] = map[interface{}]interface{}{}
+		}
+		t := reflect.TypeOf(b.GetConfig())
+		for i := 0; i < t.NumField(); i++ {
+			overrideConfig((*cfg)[backendKey], backendKey, t.Field(i).Tag.Get("mapstructure"), t.Field(i), cmd)
+		}
+	}
+}
+
+func overrideConfig(cfg interface{}, backendKey string, key string, field reflect.StructField, cmd *cobra.Command) {
+	kind := field.Type.Kind()
+	if kind == reflect.Ptr {
+		kind = field.Type.Elem().Kind()
+	}
+	switch kind {
+	case reflect.String:
+		v := cmd.Flags().Lookup(fmt.Sprintf("%s.%s", backendKey, key))
+		if !v.Changed {
+			return
+		}
+		val, err := cmd.Flags().GetString(fmt.Sprintf("%s.%s", backendKey, key))
+		if err != nil {
+			log.Fatal(err)
+		}
+		cfg.(map[interface{}]interface{})[key] = val
+	case reflect.Int:
+		v := cmd.Flags().Lookup(fmt.Sprintf("%s.%s", backendKey, key))
+		if !v.Changed {
+			return
+		}
+		val, err := cmd.Flags().GetInt(fmt.Sprintf("%s.%s", backendKey, key))
+		if err != nil {
+			log.Fatal(err)
+		}
+		cfg.(map[interface{}]interface{})[key] = val
+	}
+}
+
+func Send(cfg map[string]interface{}, title string, msg string, status *bool) error {
+	backendIfaces, ok := cfg["backends"]
+	if !ok {
+		return fmt.Errorf("no backends configured")
+	}
+	backendKeysIface, ok := backendIfaces.([]interface{})
+	if !ok {
+		return fmt.Errorf("backends is not a list")
+	}
+	for _, backendKeyIface := range backendKeysIface {
+		backendKey, ok := backendKeyIface.(string)
+		if !ok {
+			log.Println(fmt.Errorf("backend is not a string"))
+			continue
+		}
+		b, ok := backends[backendKey]
+		if !ok {
+			log.Println(fmt.Errorf("backend %s not found", backendKey))
+			continue
+		}
+		cfgStruct := b.GetConfig()
+		if err := mapstructure.Decode(cfg[backendKey], &cfgStruct); err != nil {
+			log.Println(fmt.Errorf("error decoding backend %s config: %s", backendKey, err))
+			continue
+		}
+		if err := validate.Struct(cfgStruct); err != nil {
+			log.Println(fmt.Errorf("error validating backend %s config: %s", backendKey, err))
+			continue
+		}
+
+		if err := b.Send(cfgStruct, title, msg, status); err != nil {
+			return err
+		}
+	}
+	return nil
+}
diff --git a/functions.go b/functions.go
new file mode 100644
index 0000000..9e1b249
--- /dev/null
+++ b/functions.go
@@ -0,0 +1,137 @@
+package main
+
+import (
+	"fmt"
+	"io/ioutil"
+	"log"
+	"os"
+	"os/exec"
+	"strconv"
+	"strings"
+	"time"
+
+	"github.com/adrg/xdg"
+	"github.com/hrntknr/ntf/backends"
+	"github.com/spf13/cobra"
+)
+
+func doneFunc(cmd *cobra.Command, args []string) {
+	cfg, err := getConfig()
+	if err != nil {
+		log.Fatal(err)
+	}
+	backends.OverrideConfigs(&cfg, cmd)
+	var title string
+	if cmd.Flags().Lookup("title").Changed {
+		title = cmd.Flags().Lookup("title").Value.String()
+	} else {
+		title, err = getContext()
+		if err != nil {
+			log.Fatal(err)
+		}
+	}
+	if len(args) < 1 {
+		log.Fatal("no argument")
+	}
+	execCmd := exec.Command(args[0], args[1:]...)
+	execCmd.Stdout = os.Stdout
+	execCmd.Stderr = os.Stderr
+	execCmd.Stdin = os.Stdin
+	start := time.Now()
+	execCmd.Run()
+	elapsed := time.Since(start)
+	var msg string
+	status := execCmd.ProcessState.ExitCode() == 0
+	if status {
+		msg = fmt.Sprintf("`%s` success in %s", strings.Join(args, " "), formatDuration(elapsed))
+	} else {
+		msg = fmt.Sprintf("`%s` failed (code %d) in %s", strings.Join(args, " "), execCmd.ProcessState.ExitCode(), formatDuration(elapsed))
+	}
+	if err := backends.Send(cfg, title, msg, &status); err != nil {
+		log.Fatal(err)
+	}
+}
+
+func sendFunc(cmd *cobra.Command, args []string) {
+	cfg, err := getConfig()
+	if err != nil {
+		log.Fatal(err)
+	}
+	backends.OverrideConfigs(&cfg, cmd)
+	var title string
+	if cmd.Flags().Lookup("title").Changed {
+		title = cmd.Flags().Lookup("title").Value.String()
+	} else {
+		title, err = getContext()
+		if err != nil {
+			log.Fatal(err)
+		}
+	}
+	if len(args) < 1 {
+		log.Fatal("no argument")
+	}
+	if err := backends.Send(cfg, title, strings.Join(args, " "), nil); err != nil {
+		log.Fatal(err)
+	}
+}
+
+func shellIntegrationFunc(cmd *cobra.Command, args []string) {
+	shellPath := xdg.DataHome + "/ntf/ntf-shell-hook.sh"
+	if _, err := os.Stat(shellPath); os.IsNotExist(err) {
+		if err := os.MkdirAll(xdg.DataHome+"/ntf", 0755); err != nil {
+			log.Fatal(err)
+		}
+		if err := ioutil.WriteFile(shellPath, ntf_shell_hook, 0755); err != nil {
+			log.Fatal(err)
+		}
+	}
+	fmt.Println(
+		strings.Join([]string{
+			"export AUTO_NTF_DONE_LONGER_THAN=${AUTO_NTF_DONE_LONGER_THAN:=10}",
+			fmt.Sprintf("source %s", shellPath),
+			"# To use ntf's shell integration, run this and add it to your shell's rc file:",
+			"# eval \"$(ntf shell-integration)\"",
+		}, "\n"),
+	)
+}
+
+func shellDoneFunc(cmd *cobra.Command, args []string) {
+	cfg, err := getConfig()
+	if err != nil {
+		log.Fatal(err)
+	}
+	backends.OverrideConfigs(&cfg, cmd)
+	var title string
+	if cmd.Flags().Lookup("title").Changed {
+		title = cmd.Flags().Lookup("title").Value.String()
+	} else {
+		title, err = getContext()
+		if err != nil {
+			log.Fatal(err)
+		}
+	}
+	if len(args) < 3 {
+		log.Fatal("invalid arguments")
+	}
+	code, err := strconv.Atoi(args[0])
+	if err != nil {
+		log.Fatal(err)
+	}
+	duration, err := strconv.Atoi(args[1])
+	if err != nil {
+		log.Fatal(err)
+	}
+	command := strings.Join(args[2:], " ")
+	status := code == 0
+	if status {
+		msg := fmt.Sprintf("`%s` success in %s", command, formatDuration(time.Second*time.Duration(duration)))
+		if err := backends.Send(cfg, title, msg, &status); err != nil {
+			log.Fatal(err)
+		}
+	} else {
+		msg := fmt.Sprintf("`%s` failed (code %d) in %s", command, code, formatDuration(time.Second*time.Duration(duration)))
+		if err := backends.Send(cfg, title, msg, &status); err != nil {
+			log.Fatal(err)
+		}
+	}
+}
diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..671be25
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,22 @@
+module github.com/hrntknr/ntf
+
+go 1.18
+
+require (
+	github.com/adrg/xdg v0.4.0
+	github.com/go-playground/validator/v10 v10.11.0
+	github.com/mitchellh/mapstructure v1.5.0
+	github.com/spf13/cobra v1.5.0
+	github.com/spf13/pflag v1.0.5
+	gopkg.in/yaml.v2 v2.4.0
+)
+
+require (
+	github.com/go-playground/locales v0.14.0 // indirect
+	github.com/go-playground/universal-translator v0.18.0 // indirect
+	github.com/inconshreveable/mousetrap v1.0.0 // indirect
+	github.com/leodido/go-urn v1.2.1 // indirect
+	golang.org/x/crypto v0.0.0-20211215153901-e495a2d5b3d3 // indirect
+	golang.org/x/sys v0.0.0-20211025201205-69cdffdb9359 // indirect
+	golang.org/x/text v0.3.7 // indirect
+)
diff --git a/go.sum b/go.sum
new file mode 100644
index 0000000..d628ce9
--- /dev/null
+++ b/go.sum
@@ -0,0 +1,68 @@
+github.com/adrg/xdg v0.4.0 h1:RzRqFcjH4nE5C6oTAxhBtoE2IRyjBSa62SCbyPidvls=
+github.com/adrg/xdg v0.4.0/go.mod h1:N6ag73EX4wyxeaoeHctc1mas01KZgsj5tYiAIwqJE/E=
+github.com/cpuguy83/go-md2man/v2 v2.0.2/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46tRHOmNcaadrF8o=
+github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
+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=
+github.com/go-playground/assert/v2 v2.0.1 h1:MsBgLAaY856+nPRTKrp3/OZK38U/wa0CcBYNjji3q3A=
+github.com/go-playground/assert/v2 v2.0.1/go.mod h1:VDjEfimB/XKnb+ZQfWdccd7VUvScMdVu0Titje2rxJ4=
+github.com/go-playground/locales v0.14.0 h1:u50s323jtVGugKlcYeyzC0etD1HifMjqmJqb8WugfUU=
+github.com/go-playground/locales v0.14.0/go.mod h1:sawfccIbzZTqEDETgFXqTho0QybSa7l++s0DH+LDiLs=
+github.com/go-playground/universal-translator v0.18.0 h1:82dyy6p4OuJq4/CByFNOn/jYrnRPArHwAcmLoJZxyho=
+github.com/go-playground/universal-translator v0.18.0/go.mod h1:UvRDBj+xPUEGrFYl+lu/H90nyDXpg0fqeB/AQUGNTVA=
+github.com/go-playground/validator/v10 v10.11.0 h1:0W+xRM511GY47Yy3bZUbJVitCNg2BOGlCyvTqsp/xIw=
+github.com/go-playground/validator/v10 v10.11.0/go.mod h1:i+3WkQ1FvaUjjxh1kSvIA4dMGDBiPU55YFDl0WbKdWU=
+github.com/inconshreveable/mousetrap v1.0.0 h1:Z8tu5sraLXCXIcARxBp/8cbvlwVa7Z1NHg9XEKhtSvM=
+github.com/inconshreveable/mousetrap v1.0.0/go.mod h1:PxqpIevigyE2G7u3NXJIT2ANytuPF1OarO4DADm73n8=
+github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
+github.com/kr/pretty v0.2.1/go.mod h1:ipq/a2n7PKx3OHsz4KJII5eveXtPO4qwEXGdVfWzfnI=
+github.com/kr/pretty v0.3.0 h1:WgNl7dwNpEZ6jJ9k1snq4pZsg7DOEN8hP9Xw0Tsjwk0=
+github.com/kr/pretty v0.3.0/go.mod h1:640gp4NfQd8pI5XOwp5fnNeVWj67G7CFk/SaSQn7NBk=
+github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
+github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
+github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
+github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
+github.com/leodido/go-urn v1.2.1 h1:BqpAaACuzVSgi/VLzGZIobT2z4v53pjosyNd9Yv6n/w=
+github.com/leodido/go-urn v1.2.1/go.mod h1:zt4jvISO2HfUBqxjfIshjdMTYS56ZS/qv49ictyFfxY=
+github.com/mitchellh/mapstructure v1.5.0 h1:jeMsZIYE/09sWLaz43PL7Gy6RuMjD2eJVyuac5Z2hdY=
+github.com/mitchellh/mapstructure v1.5.0/go.mod h1:bFUtVrKA4DC2yAKiSyO/QUcy7e+RRV2QTWOzhPopBRo=
+github.com/pkg/diff v0.0.0-20210226163009-20ebb0f2a09e/go.mod h1:pJLUxLENpZxwdsKMEsNbx1VGcRFpLqf3715MtcvvzbA=
+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/rogpeppe/go-internal v1.6.1/go.mod h1:xXDCJY+GAPziupqXw64V24skbSoqbTEfhy4qGm1nDQc=
+github.com/rogpeppe/go-internal v1.8.0 h1:FCbCCtXNOY3UtUuHUYaghJg4y7Fd14rXifAYUAtL9R8=
+github.com/rogpeppe/go-internal v1.8.0/go.mod h1:WmiCO8CzOY8rg0OYDC4/i/2WRWAB6poM+XZ2dLUbcbE=
+github.com/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
+github.com/spf13/cobra v1.5.0 h1:X+jTBEBqF0bHN+9cSMgmfuvv2VHJ9ezmFNf9Y/XstYU=
+github.com/spf13/cobra v1.5.0/go.mod h1:dWXEIy2H428czQCjInthrTRUg7yKbok+2Qi/yBIJoUM=
+github.com/spf13/pflag v1.0.5 h1:iy+VFUOCP1a+8yFto/drg2CJ5u0yRoB7fZw3DKv/JXA=
+github.com/spf13/pflag v1.0.5/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An2Bg=
+github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/testify v1.6.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
+github.com/stretchr/testify v1.7.0 h1:nwc3DEeHmmLAfoZucVR881uASk0Mfjw8xYJ99tb5CcY=
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+golang.org/x/crypto v0.0.0-20211215153901-e495a2d5b3d3 h1:0es+/5331RGQPcXlMfP+WrnIIS6dNnNRe0WB02W0F4M=
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+golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
+golang.org/x/text v0.3.7 h1:olpwvP2KacW1ZWvsR7uQhoyTYvKAupfQrRGBFM352Gk=
+golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
+golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
+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 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=
+gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q=
+gopkg.in/errgo.v2 v2.1.0/go.mod h1:hNsd1EY+bozCKY1Ytp96fpM3vjJbqLJn88ws8XvfDNI=
+gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
+gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b h1:h8qDotaEPuJATrMmW04NCwg7v22aHH28wwpauUhK9Oo=
+gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
diff --git a/main.go b/main.go
new file mode 100644
index 0000000..535f0fb
--- /dev/null
+++ b/main.go
@@ -0,0 +1,54 @@
+package main
+
+import (
+	_ "embed"
+	"log"
+
+	"github.com/hrntknr/ntf/backends"
+	"github.com/spf13/cobra"
+)
+
+func main() {
+	if err := _main(); err != nil {
+		log.Fatal(err)
+	}
+}
+
+//go:embed ntf-shell-hook.sh
+var ntf_shell_hook []byte
+
+func _main() error {
+	cmd := &cobra.Command{}
+	cmd.CompletionOptions.DisableDefaultCmd = true
+
+	doneCmd := &cobra.Command{
+		Use:   "done",
+		Short: "Execute the command and notify the message",
+		Run:   doneFunc,
+	}
+	doneCmd.Flags().StringP("title", "t", "", "override title")
+
+	sendCmd := &cobra.Command{
+		Use:   "send",
+		Short: "send notification",
+		Run:   sendFunc,
+	}
+	sendCmd.Flags().StringP("title", "t", "", "override title")
+
+	shellDoneCmd := &cobra.Command{
+		Use:    "shell-done",
+		Hidden: true,
+		Run:    shellDoneFunc,
+	}
+	shellDoneCmd.Flags().StringP("title", "t", "", "override title")
+
+	shellIntegrationCmd := &cobra.Command{
+		Use:   "shell-integration",
+		Short: "shell-integration",
+		Run:   shellIntegrationFunc,
+	}
+
+	backends.RegisterFlags(doneCmd, sendCmd, shellIntegrationCmd, shellDoneCmd)
+	cmd.AddCommand(doneCmd, sendCmd, shellIntegrationCmd, shellDoneCmd)
+	return cmd.Execute()
+}
diff --git a/src/ntf-shell-hook.sh b/ntf-shell-hook.sh
similarity index 100%
rename from src/ntf-shell-hook.sh
rename to ntf-shell-hook.sh
diff --git a/src/backends/common.rs b/src/backends/common.rs
deleted file mode 100644
index 4618213..0000000
--- a/src/backends/common.rs
+++ /dev/null
@@ -1,55 +0,0 @@
-use async_trait::async_trait;
-use serde::{Deserialize, Serialize};
-use std::str::FromStr;
-use syslog::Facility;
-use thiserror::Error;
-
-#[derive(Error, Debug)]
-pub enum BackendError {
-    #[error("`{0}`")]
-    Message(String),
-}
-
-pub struct SendOption {
-    pub slack_color: Option<String>,
-    pub pushover_device: Option<String>,
-    pub pushover_priority: Option<Priority>,
-    pub pushover_retry: Option<usize>,
-    pub pushover_expire: Option<usize>,
-    pub syslog_facility: Option<Facility>,
-    pub syslog_severity: Option<String>,
-}
-
-#[derive(Serialize, Deserialize, Debug)]
-pub enum Priority {
-    #[serde(rename = "emergency")]
-    Emergency,
-    #[serde(rename = "high")]
-    High,
-    #[serde(rename = "normal")]
-    Normal,
-    #[serde(rename = "low")]
-    Low,
-    #[serde(rename = "lowest")]
-    Lowest,
-}
-
-impl FromStr for Priority {
-    type Err = failure::Error;
-
-    fn from_str(s: &str) -> Result<Self, failure::Error> {
-        match s {
-            "emergency" => Ok(Priority::Emergency),
-            "high" => Ok(Priority::High),
-            "normal" => Ok(Priority::Normal),
-            "low" => Ok(Priority::Low),
-            "lowest" => Ok(Priority::Lowest),
-            _ => Err(failure::format_err!("invalid priority: {}", s)),
-        }
-    }
-}
-
-#[async_trait]
-pub trait Backend {
-    async fn send(&self, msg: &str, title: &str, option: &SendOption) -> Result<(), BackendError>;
-}
diff --git a/src/backends/line.rs b/src/backends/line.rs
deleted file mode 100644
index 1f0821e..0000000
--- a/src/backends/line.rs
+++ /dev/null
@@ -1,45 +0,0 @@
-use super::common::{Backend, BackendError, SendOption};
-use async_trait::async_trait;
-use serde::{Deserialize, Serialize};
-
-const API_URL: &str = "https://notify-api.line.me/api/notify";
-
-#[derive(Deserialize, Serialize)]
-struct Body {
-    message: String,
-}
-
-#[derive(Serialize, Deserialize, Debug)]
-pub struct LineConfig {
-    pub line: LineBackend,
-}
-
-#[derive(Serialize, Deserialize, Debug)]
-pub struct LineBackend {
-    token: String,
-}
-
-#[async_trait]
-impl Backend for LineBackend {
-    async fn send(&self, msg: &str, title: &str, _option: &SendOption) -> Result<(), BackendError> {
-        let body = &Body {
-            message: format!("{}\n{}", title, msg.to_string()),
-        };
-        let req = match surf::post(API_URL)
-            .header("Authorization", format!("Bearer {}", self.token))
-            .body_json(body)
-        {
-            Ok(req) => req,
-            Err(err) => return Err(BackendError::Message(err.to_string())),
-        };
-        let res = match req.await {
-            Ok(res) => res,
-            Err(err) => return Err(BackendError::Message(err.to_string())),
-        };
-        if res.status() != 200 {
-            return Err(BackendError::Message(res.status().to_string()));
-        }
-
-        Ok(())
-    }
-}
diff --git a/src/backends/mod.rs b/src/backends/mod.rs
deleted file mode 100644
index 63ca391..0000000
--- a/src/backends/mod.rs
+++ /dev/null
@@ -1,6 +0,0 @@
-pub mod common;
-pub mod line;
-pub mod pushbullet;
-pub mod pushover;
-pub mod slack;
-pub mod syslog;
diff --git a/src/backends/pushbullet.rs b/src/backends/pushbullet.rs
deleted file mode 100644
index da00d37..0000000
--- a/src/backends/pushbullet.rs
+++ /dev/null
@@ -1,51 +0,0 @@
-use super::common::{Backend, BackendError, SendOption};
-use async_trait::async_trait;
-use serde::{Deserialize, Serialize};
-
-const API_URL: &str = "https://api.pushbullet.com/v2/pushes";
-
-#[derive(Deserialize, Serialize)]
-struct Body {
-    #[serde(rename = "type")]
-    _type: String,
-    title: String,
-    body: String,
-}
-
-#[derive(Serialize, Deserialize, Debug)]
-pub struct PushbulletConfig {
-    pub pushbullet: PushbulletBackend,
-}
-
-#[derive(Serialize, Deserialize, Debug)]
-pub struct PushbulletBackend {
-    token: String,
-}
-
-#[async_trait]
-impl Backend for PushbulletBackend {
-    async fn send(&self, msg: &str, title: &str, _option: &SendOption) -> Result<(), BackendError> {
-        let body = &Body {
-            _type: "note".to_string(),
-            title: title.to_string(),
-            body: msg.to_string(),
-        };
-        let req = match surf::post(API_URL)
-            .header("Access-Token", self.token.to_string())
-            .header("Content-Type", "application/json")
-            .body_json(body)
-        {
-            Ok(req) => req,
-            Err(err) => return Err(BackendError::Message(err.to_string())),
-        };
-        let res = match req.await {
-            Ok(res) => res,
-            Err(err) => return Err(BackendError::Message(err.to_string())),
-        };
-        if res.status() != 200 {
-            return Err(BackendError::Message(res.status().to_string()));
-        }
-
-        Ok(())
-    }
-}
diff --git a/src/backends/pushover.rs b/src/backends/pushover.rs
deleted file mode 100644
index 693c981..0000000
--- a/src/backends/pushover.rs
+++ /dev/null
@@ -1,95 +0,0 @@
-use super::common::{Backend, BackendError, Priority, SendOption};
-use async_trait::async_trait;
-use serde::{Deserialize, Serialize};
-
-const API_TOKEN: &str = "abughxjjtuofgt89bz21mibut67j5t";
-const API_URL: &str = "https://api.pushover.net/1/messages.json";
-
-#[derive(Deserialize, Serialize)]
-struct Body {
-    token: String,
-    user: String,
-    title: String,
-    message: String,
-    device: Option<String>,
-    priority: Option<isize>,
-    retry: Option<usize>,
-    expire: Option<usize>,
-}
-
-#[derive(Serialize, Deserialize, Debug)]
-pub struct PushoverConfig {
-    pub pushover: PushoverBackend,
-}
-
-#[derive(Serialize, Deserialize, Debug)]
-pub struct PushoverBackend {
-    user_key: String,
-    device: Option<String>,
-    priority: Option<Priority>,
-    retry: Option<usize>,
-    expire: Option<usize>,
-}
-
-#[async_trait]
-impl Backend for PushoverBackend {
-    async fn send(&self, msg: &str, title: &str, option: &SendOption) -> Result<(), BackendError> {
-        let body = &Body {
-            token: API_TOKEN.to_string(),
-            user: self.user_key.to_string(),
-            title: title.to_string(),
-            message: msg.to_string(),
-            device: match option.pushover_device.clone() {
-                Some(device) => Some(device),
-                None => match self.device.clone() {
-                    Some(device) => Some(device),
-                    None => None,
-                },
-            },
-            priority: match &option.pushover_priority {
-                Some(priority) => Some(priority_to_pushover_code(priority)),
-                None => match &self.priority {
-                    Some(priority) => Some(priority_to_pushover_code(priority)),
-                    None => None,
-                },
-            },
-            retry: match option.pushover_retry {
-                Some(retry) => Some(retry),
-                None => match self.retry {
-                    Some(retry) => Some(retry),
-                    None => None,
-                },
-            },
-            expire: match option.pushover_expire {
-                Some(expire) => Some(expire),
-                None => match self.expire {
-                    Some(expire) => Some(expire),
-                    None => None,
-                },
-            },
-        };
-        let req = match surf::post(API_URL).body_json(body) {
-            Ok(req) => req,
-            Err(err) => return Err(BackendError::Message(err.to_string())),
-        };
-        let res = match req.await {
-            Ok(res) => res,
-            Err(err) => return Err(BackendError::Message(err.to_string())),
-        };
-        if res.status() != 200 {
-            return Err(BackendError::Message(res.status().to_string()));
-        }
-
-        Ok(())
-    }
-}
-
-pub fn priority_to_pushover_code(priority: &Priority) -> isize {
-    match priority {
-        Priority::Emergency => 2,
-        Priority::High => 1,
-        Priority::Normal => 0,
-        Priority::Low => -1,
-        Priority::Lowest => -2,
-    }
-}
diff --git a/src/backends/slack.rs b/src/backends/slack.rs
deleted file mode 100644
index 5b14a0a..0000000
--- a/src/backends/slack.rs
+++ /dev/null
@@ -1,65 +0,0 @@
-use super::common::{Backend, BackendError, SendOption};
-use async_trait::async_trait;
-use serde::{Deserialize, Serialize};
-
-const COLOR: &str = "good";
-const ICON_URL: &str = "https://raw.githubusercontent.com/hrntknr/ntf/master/assets/icon.png";
-
-#[derive(Deserialize, Serialize)]
-struct Body {
-    icon_url: String,
-    attachments: Vec<Attachment>,
-}
-
-#[derive(Deserialize, Serialize)]
-struct Attachment {
-    title: String,
-    text: String,
-    color: String,
-}
-
-#[derive(Serialize, Deserialize, Debug)]
-pub struct SlackConfig {
-    pub slack: SlackBackend,
-}
-
-#[derive(Serialize, Deserialize, Debug)]
-pub struct SlackBackend {
-    webhook: String,
-    color: Option<String>,
-}
-
-#[async_trait]
-impl Backend for SlackBackend {
-    async fn send(&self, msg: &str, title: &str, option: &SendOption) -> Result<(), BackendError> {
-        let mut attachments = Vec::new();
-        attachments.push(Attachment {
-            title: title.to_string(),
-            text: msg.to_string(),
-            color: match option.slack_color.clone() {
-                Some(color) => color,
-                None => match self.color.clone() {
-                    Some(color) => color,
-                    None => COLOR.to_string(),
-                },
-            },
-        });
-        let body = &Body {
-            icon_url: ICON_URL.to_string(),
-            attachments: attachments,
-        };
-        let req = match surf::post(&self.webhook).body_json(body) {
-            Ok(req) => req,
-            Err(err) => return Err(BackendError::Message(err.to_string())),
-        };
-        let res = match req.await {
-            Ok(res) => res,
-            Err(err) => return Err(BackendError::Message(err.to_string())),
-        };
-        if res.status() != 200 {
-            return Err(BackendError::Message(res.status().to_string()));
-        }
-
-        Ok(())
-    }
-}
diff --git a/src/backends/syslog.rs b/src/backends/syslog.rs
deleted file mode 100644
index e8b5aaa..0000000
--- a/src/backends/syslog.rs
+++ /dev/null
@@ -1,99 +0,0 @@
-use super::common::{Backend, BackendError, SendOption};
-use async_trait::async_trait;
-use serde::{Deserialize, Serialize};
-use std::process;
-use syslog::{Facility, Formatter3164};
-
-#[derive(Serialize, Deserialize, Debug)]
-pub struct SyslogConfig {
-    pub syslog: SyslogBackend,
-}
-
-#[derive(Serialize, Deserialize, Debug)]
-pub struct SyslogBackend {
-    facility: Option<String>,
-    severity: Option<String>,
-}
-
-#[async_trait]
-impl Backend for SyslogBackend {
-    async fn send(&self, msg: &str, _title: &str, option: &SendOption) -> Result<(), BackendError> {
-        let formatter = Formatter3164 {
-            facility: match option.syslog_facility {
-                Some(facility) => facility,
-                None => match self.facility.clone() {
-                    Some(facility) => match facility.parse() {
-                        Ok(facility) => facility,
-                        Err(_) => {
-                            return Err(BackendError::Message(
-                                "failed to parse facility".to_string(),
-                            ))
-                        }
-                    },
-                    None => Facility::LOG_USER,
-                },
-            },
-            hostname: None,
-            process: "ntf".into(),
-            pid: process::id() as u32,
-        };
-        let mut writer = match syslog::unix(formatter) {
-            Ok(writer) => writer,
-            Err(_) => {
-                return Err(BackendError::Message(
-                    "faild to get syslog writer".to_string(),
-                ))
-            }
-        };
-
-        let result = match option.syslog_severity.clone() {
-            Some(severity) => match severity.as_str() {
-                "emerg" => writer.emerg(msg),
-                "alert" => writer.alert(msg),
-                "crit" => writer.crit(msg),
-                "err" => writer.err(msg),
-                "warning" => writer.warning(msg),
-                "notice" => writer.notice(msg),
-                "info" => writer.info(msg),
-                "debug" => writer.debug(msg),
-                _ => {
-                    return Err(BackendError::Message(format!(
-                        "{} is not valid severity",
-                        severity
-                    )))
-                }
-            },
-            None => match self.severity.clone() {
-                Some(severity) => match severity.as_str() {
-                    "emerg" => writer.emerg(msg),
-                    "alert" => writer.alert(msg),
-                    "crit" => writer.crit(msg),
-                    "err" => writer.err(msg),
-                    "warning" => writer.warning(msg),
-                    "notice" => writer.notice(msg),
-                    "info" => writer.info(msg),
-                    "debug" => writer.debug(msg),
-                    _ => {
-                        return Err(BackendError::Message(format!(
-                            "{} is not valid severity",
-                            severity
-                        )))
-                    }
-                },
-                None => writer.info(msg),
-            },
-        };
-
-        match result {
-            Ok(_) => (),
-            Err(err) => {
-                return Err(BackendError::Message(format!(
-                    "faild to send syslog: {}",
-                    err.to_string()
-                )))
-            }
-        }
-
-        Ok(())
-    }
-}
diff --git a/src/lib.rs b/src/lib.rs
deleted file mode 100644
index 257edb5..0000000
--- a/src/lib.rs
+++ /dev/null
@@ -1 +0,0 @@
-pub mod backends;
diff --git a/src/main.rs b/src/main.rs
deleted file mode 100644
index 7bf70b0..0000000
--- a/src/main.rs
+++ /dev/null
@@ -1,433 +0,0 @@
-extern crate ntf;
-use ntf::backends::common::{Backend, BackendError, Priority, SendOption};
-use ntf::backends::line::LineConfig;
-use ntf::backends::pushbullet::PushbulletConfig;
-use ntf::backends::pushover::PushoverConfig;
-use ntf::backends::slack::SlackConfig;
-use ntf::backends::syslog::SyslogConfig;
-
-use async_std::task;
-use clap::{Arg, ArgMatches, Command};
-use config::{Config, File};
-use failure::{format_err, Error};
-use std::env;
-use std::fs;
-use std::process;
-use std::time::{Duration, Instant};
-use std::vec::Vec;
-use syslog::Facility;
-
-fn main() {
-    let config = match get_config() {
-        Ok(config) => config,
-        Err(err) => {
-            println!("{}", err.to_string());
-            process::exit(1);
-        }
-    };
-
-    let basic_args = &[
-        Arg::new("title")
-            .help("override title")
-            .long("title")
-            .short('t')
-            .multiple_values(false),
-        Arg::new("pushover_device")
-            .help("override pushover device")
-            .long("pushover.device")
-            .multiple_values(false),
-        Arg::new("pushover_priority")
-            .help("override pushover priority")
-            .long("pushover.priority")
-            .multiple_values(false)
-            .possible_values(&["emergency", "high", "normal", "low", "lowest"]),
-        Arg::new("pushover_retry")
-            .help("override pushover retry")
-            .long("pushover.retry")
-            .multiple_values(false),
-        Arg::new("pushover_expire")
-            .help("override pushover expire")
-            .long("pushover.expire")
-            .multiple_values(false),
-        Arg::new("slack_color")
-            .help("override slack color")
-            .long("slack.color")
-            .multiple_values(false),
-        Arg::new("syslog_facility")
-            .help("override syslog facility")
-            .long("syslog.facility")
-            .multiple_values(false)
-            .possible_values(&[
-                "kern", "user", "mail", "daemon", "auth", "syslog", "lpr", "news", "uucp", "cron",
-                "authpriv", "ftp", "local0", "local1", "local2", "local3", "local4", "local5",
-                "local6", "local7",
-            ]),
-        Arg::new("syslog_severity")
-            .help("override syslog severity")
-            .long("syslog.severity")
-            .multiple_values(false)
-            .possible_values(&[
-                "emerg", "alert", "crit", "err", "warning", "notice", "info", "debug",
-            ]),
-    ];
-
-    let app = Command::new("ntf")
-        .subcommand(
-            Command::new("send")
-                .about("send notification")
-                .args(basic_args)
-                .arg(Arg::new("message").required(true).multiple_values(true)),
-        )
-        .subcommand(
-            Command::new("done")
-                .about("Execute the command and notify the message")
-                .args(basic_args)
-                .arg(Arg::new("cmd").required(true).multiple_values(true)),
-        )
-        .subcommand(
-            Command::new("shell-done")
-                .hide(true)
-                .args(basic_args)
-                .arg(Arg::new("code").required(true).multiple_values(false))
-                .arg(Arg::new("duration").required(true).multiple_values(false))
-                .arg(Arg::new("cmd").required(true).multiple_values(true)),
-        )
-        .subcommand(Command::new("shell-integration").about("shell-integration"));
-    let matches = app.get_matches();
-
-    if let Some(ref sub_matches) = matches.subcommand_matches("send") {
-        match send(config, sub_matches) {
-            Ok(_) => {}
-            Err(err) => {
-                println!("{}", err.to_string());
-                process::exit(1);
-            }
-        }
-    } else if let Some(ref sub_matches) = matches.subcommand_matches("done") {
-        match done(config, sub_matches) {
-            Ok(_) => {}
-            Err(err) => {
-                println!("{}", err.to_string());
-                process::exit(1);
-            }
-        }
-    } else if let Some(ref sub_matches) = matches.subcommand_matches("shell-done") {
-        match shell_done(config, sub_matches) {
-            Ok(_) => {}
-            Err(err) => {
-                println!("{}", err.to_string());
-                process::exit(1);
-            }
-        }
-    } else if let Some(ref sub_matches) = matches.subcommand_matches("shell-integration") {
-        match shell_integration(config, sub_matches) {
-            Ok(_) => {}
-            Err(err) => {
-                println!("{}", err.to_string());
-                process::exit(1);
-            }
-        }
-    }
-}
-
-fn get_send_option(sub_matches: &&ArgMatches) -> Result<SendOption, Error> {
-    let opt = SendOption {
-        slack_color: sub_matches.value_of("slack_color").map(|s| s.to_string()),
-        pushover_device: sub_matches
-            .value_of("pushover_device")
-            .map(|s| s.to_string()),
-        pushover_priority: match sub_matches
-            .value_of("pushover_priority")
-            .map(|s| s.parse::<Priority>())
-        {
-            Some(value) => Some(value?),
-            None => None,
-        },
-        pushover_retry: match sub_matches
-            .value_of("pushover_retry")
-            .map(|s| s.parse::<usize>())
-        {
-            Some(value) => Some(value?),
-            None => None,
-        },
-        pushover_expire: match sub_matches
-            .value_of("pushover_expire")
-            .map(|s| s.parse::<usize>())
-        {
-            Some(value) => Some(value?),
-            None => None,
-        },
-        syslog_facility: match sub_matches
-            .value_of("syslog_facility")
-            .map(|s| s.parse::<Facility>())
-        {
-            Some(value) => Some(match value {
-                Ok(facility) => facility,
-                Err(_) => return Err(format_err!("can't get message")),
-            }),
-            None => None,
-        },
-        syslog_severity: sub_matches
-            .value_of("syslog_severity")
-            .map(|s| s.to_string()),
-    };
-    Ok(opt)
-}
-
-fn send(backends: Vec<Box<dyn Backend>>, sub_matches: &&ArgMatches) -> Result<(), Error> {
-    let title = match sub_matches.value_of("title") {
-        Some(title) => title.to_string(),
-        None => get_title()?,
-    };
-    let message = sub_matches
-        .values_of("message")
-        .ok_or(format_err!("can't get message"))?;
-    let message = message.fold(String::new(), |mut acc: String, cur: &str| {
-        if acc != "" {
-            acc.push_str(" ");
-        }
-        acc.push_str(cur);
-        acc
-    });
-    let message = unescape(message);
-    let opt = get_send_option(sub_matches)?;
-
-    let result: Result<(), BackendError> = backends
-        .into_iter()
-        .map(|backend| task::block_on(backend.send(message.as_str(), title.as_str(), &opt)))
-        .collect();
-    result?;
-
-    Ok(())
-}
-
-fn done(backends: Vec<Box<dyn Backend>>, sub_matches: &&ArgMatches) -> Result<(), Error> {
-    let title = match sub_matches.value_of("title") {
-        Some(title) => title.to_string(),
-        None => get_title()?,
-    };
-    let cmd = sub_matches
-        .values_of("cmd")
-        .ok_or(format_err!("can't get cmd"))?;
-    let cmd: Vec<String> = cmd.map(|s| s.to_string()).collect();
-    let start = Instant::now();
-    let code = process::Command::new(&cmd[0])
-        .args(&cmd[1..])
-        .stdin(process::Stdio::inherit())
-        .stdout(process::Stdio::inherit())
-        .stderr(process::Stdio::inherit())
-        .spawn()?
-        .wait()?
-        .code()
-        .ok_or(format_err!("can't get code"))?;
-    let duration = start.elapsed();
-
-    let message = if code == 0 {
-        format!(
-            "`{}` success in {}",
-            cmd.join(" ").escape_default().to_string(),
-            format_duration(duration),
-        )
-    } else {
-        format!(
-            "`{}` failed (code {}) in {}",
-            cmd.join(" ").escape_default().to_string(),
-            code,
-            format_duration(duration),
-        )
-    };
-    let mut opt = get_send_option(sub_matches)?;
-    if opt.slack_color == None {
-        match code {
-            0 => opt.slack_color = Some("good".to_string()),
-            _ => opt.slack_color = Some("warning".to_string()),
-        }
-    }
-
-    let result: Result<(), BackendError> = backends
-        .into_iter()
-        .map(|backend| task::block_on(backend.send(message.as_str(), title.as_str(), &opt)))
-        .collect();
-    result?;
-
-    Ok(())
-}
-
-fn shell_done(backends: Vec<Box<dyn Backend>>, sub_matches: &&ArgMatches) -> Result<(), Error> {
-    let title = match sub_matches.value_of("title") {
-        Some(title) => title.to_string(),
-        None => get_title()?,
-    };
-
-    let code: i32 = sub_matches
-        .value_of("code")
-        .ok_or(format_err!("can't get code"))?
-        .parse()?;
-    let duration = sub_matches
-        .value_of("duration")
-        .ok_or(format_err!("can't get duration"))?
-        .parse()?;
-    let duration = Duration::from_secs(duration);
-    let cmd: Vec<String> = sub_matches
-        .values_of("cmd")
-        .ok_or(format_err!("can't get cmd"))?
-        .map(|s| s.to_string())
-        .collect();
-
-    let message = if code == 0 {
-        format!(
-            "`{}` success in {}",
-            cmd.join(" ").escape_default().to_string(),
-            format_duration(duration),
-        )
-    } else {
-        format!(
-            "`{}` failed (code {}) in {}",
-            cmd.join(" ").escape_default().to_string(),
-            code,
-            format_duration(duration),
-        )
-    };
-    let mut opt = get_send_option(sub_matches)?;
-    if opt.slack_color == None {
-        match code {
-            0 => opt.slack_color = Some("good".to_string()),
-            _ => opt.slack_color = Some("warning".to_string()),
-        }
-    }
-
-    let result: Result<(), BackendError> = backends
-        .into_iter()
-        .map(|backend| task::block_on(backend.send(message.as_str(), title.as_str(), &opt)))
-        .collect();
-    result?;
-
-    Ok(())
-}
-
-fn shell_integration(
-    _backends: Vec<Box<dyn Backend>>,
-    _sub_matches: &&ArgMatches,
-) -> Result<(), Error> {
-    let mut dir = dirs::data_local_dir().ok_or(format_err!("can't get data_local_dir"))?;
-    dir.push("ntf");
-    if !dir.exists() {
-        fs::create_dir_all(dir)?
-    };
-
-    let mut file = dirs::data_local_dir().ok_or(format_err!("can't get data_local_dir"))?;
-    file.push("ntf/ntf-shell-hook.sh");
-    if !file.exists() {
-        fs::write(file, include_str!("./ntf-shell-hook.sh"))?
-    };
-    println!("export ${{AUTO_NTF_DONE_LONGER_THAN:=10}}");
-    println!(
-        "source {}/ntf/ntf-shell-hook.sh",
-        dirs::data_local_dir()
-            .ok_or(format_err!("can't get data_local_dir"))?
-            .to_str()
-            .ok_or(format_err!("can't get data_local_dir"))?
-    );
-    println!("# To use ntf's shell integration, run this and add it to your shell's rc file:");
-    println!("# eval \"$(ntf shell-integration)\"");
-
-    Ok(())
-}
-
-fn format_duration(duration: Duration) -> String {
-    let sec = duration.as_secs();
-    if sec < 60 {
-        return format!("{}m {}s", sec / 60, sec % 60);
-    }
-    format!("{}h {}m {}s", sec / 60 / 60, (sec / 60) % 60, sec % 60)
-}
-
-pub fn get_title() -> Result<String, Error> {
-    let path = env::current_dir()?;
-    let path = path.to_str().ok_or(format_err!("can't get current_dir"))?;
-    let home = dirs::home_dir().ok_or(format_err!("can't get home_dir"))?;
-    let home = home.to_str().ok_or(format_err!("can't get home_dir"))?;
-    let host = hostname::get()?.into_string().unwrap();
-    let user = username::get_user_name()?;
-    let relative_path = if path.starts_with(home) {
-        path.replacen(home, "~", 1)
-    } else {
-        path.to_string()
-    };
-
-    Ok(format!(
-        "{}@{}:{}",
-        user.to_string(),
-        host.to_string(),
-        relative_path,
-    ))
-}
-
-fn get_config() -> Result<Vec<Box<dyn Backend>>, Error> {
-    let mut path = dirs::home_dir().ok_or(format_err!("can't get home_dir"))?;
-    path.push(".ntf.yml");
-
-    let settings = Config::builder().add_source(File::from(path)).build()?;
-
-    let backends_str = settings.get_array("backends")?;
-    let mut backends: Vec<Box<dyn Backend>> = Vec::new();
-
-    for backend_str in backends_str {
-        let settings = settings.clone();
-        let backend_str = backend_str.into_string()?;
-        match backend_str.as_str() {
-            "line" => {
-                let conf: LineConfig = settings.try_deserialize()?;
-                backends.push(Box::new(conf.line));
-            }
-            "pushbullet" => {
-                let conf: PushbulletConfig = settings.try_deserialize()?;
-                backends.push(Box::new(conf.pushbullet));
-            }
-            "pushover" => {
-                let conf: PushoverConfig = settings.try_deserialize()?;
-                backends.push(Box::new(conf.pushover));
-            }
-            "slack" => {
-                let conf: SlackConfig = settings.try_deserialize()?;
-                backends.push(Box::new(conf.slack));
-            }
-            "syslog" => {
-                let conf: SyslogConfig = settings.try_deserialize()?;
-                backends.push(Box::new(conf.syslog));
-            }
-            _ => {
-                return Err(format_err!("invalid backend: {}", backend_str.as_str()));
-            }
-        }
-    }
-
-    Ok(backends)
-}
-
-fn unescape(txt: String) -> String {
-    txt.replace("\\\\", "\\")
-        .replace("\\n", "\n")
-        .replace("\\r", "\r")
-        .replace("\\t", "\t")
-}
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-    use regex::Regex;
-
-    #[test]
-    fn get_title_test() {
-        let title = get_title().unwrap();
-        let re = Regex::new(r"^.+@.+:.+$").unwrap();
-        assert!(re.is_match(title.as_str()));
-    }
-
-    #[test]
-    fn unescape_test() {
-        let test = "\\n\\r\\t\\\\\\'\\\"\\0";
-        let expect = "\n\r\t\\\\'\\\"\\0";
-        assert_eq!(unescape(test.to_string()), expect);
-    }
-}
diff --git a/utils.go b/utils.go
new file mode 100644
index 0000000..843b1e3
--- /dev/null
+++ b/utils.go
@@ -0,0 +1,88 @@
+package main
+
+import (
+	"fmt"
+	"log"
+	"os"
+	"os/user"
+	"strings"
+	"time"
+
+	"github.com/adrg/xdg"
+	"gopkg.in/yaml.v2"
+)
+
+func getConfig() (map[string]interface{}, error) {
+	homeDir, err := os.UserHomeDir()
+	if err != nil {
+		return nil, err
+	}
+	configPath := []string{
+		homeDir + "/.ntf.yml",
+		xdg.ConfigHome + "/.ntf.yml",
+	}
+	for _, path := range configPath {
+		cfg, err := tryConfig(path)
+		if err != nil {
+			log.Fatal(err)
+		}
+		if cfg != nil {
+			return cfg, nil
+		}
+	}
+	return map[string]interface{}{}, nil
+}
+
+func tryConfig(configPath string) (map[string]interface{}, error) {
+	if _, err := os.Stat(configPath); os.IsNotExist(err) {
+		return nil, nil
+	}
+	fp, err := os.Open(configPath)
+	if err != nil {
+		return nil, err
+	}
+	defer fp.Close()
+
+	var config map[string]interface{}
+	if err := yaml.NewDecoder(fp).Decode(&config); err != nil {
+		return nil, err
+	}
+
+	return config, nil
+}
+
+func getContext() (string, error) {
+	user, err := user.Current()
+	if err != nil {
+		return "", err
+	}
+	hostname, err := os.Hostname()
+	if err != nil {
+		return "", err
+	}
+	path, err := os.Getwd()
+	if err != nil {
+		return "", err
+	}
+	homeDir, err := os.UserHomeDir()
+	if err != nil {
+		return "", err
+	}
+	if strings.HasPrefix(path, homeDir) {
+		path = "~" + path[len(homeDir):]
+	}
+	return fmt.Sprintf("%s@%s:%s", user.Username, hostname, path), nil
+}
+
+func formatDuration(d time.Duration) string {
+	if d.Seconds() < 60 {
+		return fmt.Sprintf("%ds", int(d.Seconds()))
+	}
+	if d.Minutes() < 60 {
+		return fmt.Sprintf("%dm %ds", int(d.Minutes()), int(d.Seconds())-int(d.Minutes())*60)
+	}
+	if d.Hours() < 24 {
+		return fmt.Sprintf("%dh %dm %ds", int(d.Hours()), int(d.Minutes())-int(d.Hours())*60, int(d.Seconds())-int(d.Minutes())*60)
+	}
+	return fmt.Sprintf("%dd %dh %dm %ds", int(d.Hours())/24, int(d.Hours())-int(d.Hours())/24*24, int(d.Minutes())-int(d.Hours())*60, int(d.Seconds())-int(d.Minutes())*60)
+}
diff --git a/utils_test.go b/utils_test.go
new file mode 100644
index 0000000..6711afd
--- /dev/null
+++ b/utils_test.go
@@ -0,0 +1,96 @@
+package main
+
+import (
+	"errors"
+	"math/rand"
+	"os"
+	"path"
+	"regexp"
+	"testing"
+	"time"
+)
+
+func TestFormatDuration(t *testing.T) {
+	tests := []struct {
+		in  time.Duration
+		out string
+	}{
+		{0, "0s"},
+		{1 * time.Second, "1s"},
+		{1 * time.Minute, "1m 0s"},
+		{1*time.Minute + 30*time.Second, "1m 30s"},
+		{1*time.Hour + 1*time.Minute + 30*time.Second, "1h 1m 30s"},
+		{25*time.Hour + 1*time.Minute + 30*time.Second, "1d 1h 1m 30s"},
+	}
+	for _, test := range tests {
+		if out := formatDuration(test.in); out != test.out {
+			t.Errorf("formatDuration(%d) = %s, want %s", test.in, out, test.out)
+			return
+		}
+	}
+}
+
+func TestGetContext(t *testing.T) {
+	home, err := os.UserHomeDir()
+	if err != nil {
+		t.Fatal(err)
+	}
+	if err := os.Chdir(home); err != nil {
+		t.Fatal(err)
+	}
+	expect := regexp.MustCompile(`^[a-zA-Z0-9._-]+@[a-zA-Z0-9._-]+:~$`)
+	str, err := getContext()
+	if err != nil {
+		t.Fatal(err)
+	}
+	if !expect.MatchString(str) {
+		t.Errorf("getContext() = %s, want regex %s", str, expect.String())
+		return
+	}
+}
+
+func TestTryConfig(t *testing.T) {
+	rnd := MakeRandomStr(8)
+	home, err := os.UserHomeDir()
+	if err != nil {
+		t.Fatal(err)
+	}
+	fp, err := os.Create(path.Join(home, rnd))
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer func() {
+		fp.Close()
+		os.Remove(path.Join(home, rnd))
+	}()
+	fp.WriteString(`
+backends: ["dummy"]
+dummy:
+  item: dummy
+`)
+
+	cfg, err := tryConfig(path.Join(home, rnd))
+	if err != nil {
+		t.Errorf("tryConfig(%s) = %s, want nil", path.Join(home, rnd), err)
+		return
+	}
+	if cfg == nil {
+		t.Errorf("tryConfig(%s) = nil, want non-nil", path.Join(home, rnd))
+		return
+	}
+}
+
+func MakeRandomStr(digit uint32) string {
+	const letters = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"
+
+	b := make([]byte, digit)
+	if _, err := rand.Read(b); err != nil {
+		panic(errors.New("unexpected error..."))
+	}
+
+	var result string
+	for _, v := range b {
+		result += string(letters[int(v)%len(letters)])
+	}
+	return result
+}

From 422e9ba0bc5c808d878149e03a4a5aa2760c88e8 Mon Sep 17 00:00:00 2001
From: Takanori Hirano <me@hrntknr.net>
Date: Tue, 26 Jul 2022 01:28:59 +0900
Subject: [PATCH 2/5] add line backend

---
 backends/line.go | 54 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 54 insertions(+)
 create mode 100644 backends/line.go

diff --git a/backends/line.go b/backends/line.go
new file mode 100644
index 0000000..8fa9a32
--- /dev/null
+++ b/backends/line.go
@@ -0,0 +1,54 @@
+package backends
+
+import (
+	"fmt"
+	"net/http"
+	"net/url"
+	"strings"
+)
+
+func init() {
+	backends["line"] = NewLine()
+}
+
+const LINE_API_URL = "https://notify-api.line.me/api/notify"
+
+type LineConfig struct {
+	Token string `mapstructure:"token" validate:"required"`
+}
+
+type Line struct {
+}
+
+func NewLine() BackendInterface {
+	return &Line{}
+}
+
+func (*Line) GetConfig() interface{} {
+	return LineConfig{}
+}
+
+func (*Line) Send(configIface interface{}, title string, message string, status *bool) error {
+	config, ok := configIface.(LineConfig)
+	if !ok {
+		return fmt.Errorf("invalid config")
+	}
+	form := url.Values{}
+	form.Add("message", fmt.Sprintf("%s\n%s", title, message))
+	body := strings.NewReader(form.Encode())
+	req, err := http.NewRequest("POST", LINE_API_URL, body)
+	if err != nil {
+		return err
+	}
+	req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
+	req.Header.Set("Authorization", fmt.Sprintf("Bearer %s", config.Token))
+	res, err := http.DefaultClient.Do(req)
+	if err != nil {
+		return err
+	}
+	if res.StatusCode < 200 || res.StatusCode >= 300 {
+		return fmt.Errorf("line: %s", res.Status)
+	}
+
+	return nil
+}

From 0ac9f8529b1d8bae7174d434fbf69c0fd456e263 Mon Sep 17 00:00:00 2001
From: Takanori Hirano <me@hrntknr.net>
Date: Tue, 26 Jul 2022 01:29:10 +0900
Subject: [PATCH 3/5] add slack backend

---
 backends/slack.go | 70 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 70 insertions(+)
 create mode 100644 backends/slack.go

diff --git a/backends/slack.go b/backends/slack.go
new file mode 100644
index 0000000..a8bd458
--- /dev/null
+++ b/backends/slack.go
@@ -0,0 +1,70 @@
+package backends
+
+import (
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"net/http"
+)
+
+func init() {
+	backends["slack"] = NewSlack()
+}
+
+type SlackConfig struct {
+	Webhook string  `mapstructure:"webhook" validate:"required"`
+	Color   *string `mapstructure:"color" validate:"omitempty,hexcolor"`
+}
+
+type Slack struct {
+}
+
+func NewSlack() BackendInterface {
+	return &Slack{}
+}
+
+func (*Slack) GetConfig() interface{} {
+	return SlackConfig{}
+}
+
+func (*Slack) Send(configIface interface{}, title string, message string, status *bool) error {
+	config, ok := configIface.(SlackConfig)
+	if !ok {
+		return fmt.Errorf("invalid config")
+	}
+	var color string
+	if config.Color != nil {
+		color = *config.Color
+	} else if status != nil {
+		if *status {
+			color = "good"
+		} else {
+			color = "danger"
+		}
+	} else {
+		color = "#ffffff"
+	}
+
+	body := map[string]interface{}{
+		"attachments": []map[string]interface{}{
+			{
+				"title": title,
+				"text":  message,
+				"color": color,
+			},
+		},
+	}
+	jsonBody, err := json.Marshal(body)
+	if err != nil {
+		return err
+	}
+	res, err := http.Post(config.Webhook, "application/json", bytes.NewBuffer(jsonBody))
+	if err != nil {
+		return err
+	}
+	if res.StatusCode < 200 || res.StatusCode >= 300 {
+		return fmt.Errorf("slack: %s", res.Status)
+	}
+
+	return nil
+}

From 0ea8d3f19fded6dadaeb489f3b8835c016aca639 Mon Sep 17 00:00:00 2001
From: Takanori Hirano <me@hrntknr.net>
Date: Tue, 26 Jul 2022 01:29:18 +0900
Subject: [PATCH 4/5] add some backend

---
 backends/pushbullet.go |  60 ++++++++++++++++++++++
 backends/pushover.go   |  83 ++++++++++++++++++++++++++++++
 backends/syslog.go     | 112 +++++++++++++++++++++++++++++++++++++++++
 3 files changed, 255 insertions(+)
 create mode 100644 backends/pushbullet.go
 create mode 100644 backends/pushover.go
 create mode 100644 backends/syslog.go

diff --git a/backends/pushbullet.go b/backends/pushbullet.go
new file mode 100644
index 0000000..6bc644f
--- /dev/null
+++ b/backends/pushbullet.go
@@ -0,0 +1,60 @@
+package backends
+
+import (
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"net/http"
+)
+
+func init() {
+	backends["pushbullet"] = NewPushbullet()
+}
+
+const PUSHBULET_API_URL = "https://api.pushbullet.com/v2/pushes"
+
+type PushbulletConfig struct {
+	Token string  `mapstructure:"token" validate:"required"`
+}
+
+type Pushbullet struct {
+}
+
+func NewPushbullet() BackendInterface {
+	return &Pushbullet{}
+}
+
+func (*Pushbullet) GetConfig() interface{} {
+	return PushbulletConfig{}
+}
+
+func (*Pushbullet) Send(configIface interface{}, title string, message string, status *bool) error {
+	config, ok := configIface.(PushbulletConfig)
+	if !ok {
+		return fmt.Errorf("invalid config")
+	}
+	body := map[string]interface{}{
+		"type": "note",
+		"title": title,
+		"body": message,
+	}
+	jsonBody, err := json.Marshal(body)
+	if err != nil {
+		return err
+	}
+	req, err := http.NewRequest("POST", PUSHBULET_API_URL, bytes.NewBuffer(jsonBody))
+	if err != nil {
+		return err
+	}
+	req.Header.Set("Content-Type", "application/json")
+	req.Header.Set("Authorization", fmt.Sprintf("Bearer %s", config.Token))
+	res, err := http.DefaultClient.Do(req)
+	if err != nil {
+		return err
+	}
+	if res.StatusCode < 200 || res.StatusCode >= 300 {
+		return fmt.Errorf("pushbullet: %s", res.Status)
+	}
+
+	return nil
+}
diff --git a/backends/pushover.go b/backends/pushover.go
new file mode 100644
index 0000000..35d1c43
--- /dev/null
+++ b/backends/pushover.go
@@ -0,0 +1,83 @@
+package backends
+
+import (
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"net/http"
+)
+
+func init() {
+	backends["pushover"] = NewPushover()
+}
+
+const PUSHOVER_API_TOKEN = "abughxjjtuofgt89bz21mibut67j5t"
+const PUSHOVER_API_URL = "https://api.pushover.net/1/messages.json"
+
+type PushoverConfig struct {
+	UserKey  string  `mapstructure:"user_key" validate:"required"`
+	Device   *string `mapstructure:"device" validate:"omitempty"`
+	Priority *string `mapstructure:"priority" validate:"omitempty,oneof=emergency high normal low lowest"`
+	Retry    *int    `mapstructure:"retry" validate:"omitempty,min=30"`
+	Expire   *int    `mapstructure:"expire" validate:"omitempty,min=0,max=10800"`
+}
+
+type Pushover struct {
+}
+
+func NewPushover() BackendInterface {
+	return &Pushover{}
+}
+
+func (*Pushover) GetConfig() interface{} {
+	return PushoverConfig{}
+}
+
+func (*Pushover) Send(configIface interface{}, title string, message string, status *bool) error {
+	config, ok := configIface.(PushoverConfig)
+	if !ok {
+		return fmt.Errorf("invalid config")
+	}
+
+	body := map[string]interface{}{
+		"token":   PUSHOVER_API_TOKEN,
+		"user":    config.UserKey,
+		"title":   title,
+		"message": message,
+	}
+	if config.Device != nil {
+		body["device"] = *config.Device
+	}
+	if config.Priority != nil {
+		switch *config.Priority {
+		case "emergency":
+			body["priority"] = 2
+		case "high":
+			body["priority"] = 1
+		case "normal":
+			body["priority"] = 0
+		case "low":
+			body["priority"] = -1
+		case "lowest":
+			body["priority"] = -2
+		}
+	}
+	if config.Retry != nil {
+		body["retry"] = *config.Retry
+	}
+	if config.Expire != nil {
+		body["expire"] = *config.Expire
+	}
+	jsonBody, err := json.Marshal(body)
+	if err != nil {
+		return err
+	}
+	res, err := http.Post(PUSHOVER_API_URL, "application/json", bytes.NewBuffer(jsonBody))
+	if err != nil {
+		return err
+	}
+	if res.StatusCode < 200 || res.StatusCode >= 300 {
+		return fmt.Errorf("pushover: %s", res.Status)
+	}
+	return nil
+}
diff --git a/backends/syslog.go b/backends/syslog.go
new file mode 100644
index 0000000..2d71782
--- /dev/null
+++ b/backends/syslog.go
@@ -0,0 +1,112 @@
+package backends
+
+import (
+	"fmt"
+	"log/syslog"
+)
+
+func init() {
+	backends["syslog"] = NewSyslog()
+}
+
+type SyslogConfig struct {
+	Facility *string `mapstructure:"facility" validate:"omitempty,oneof=kern user mail daemon auth syslog lpr news uucp cron authpriv ftp local0 local1 local2 local3 local4 local5 local6 local7"`
+	Severity *string `mapstructure:"severity" validate:"omitempty,oneof=emerg alert crit err warning notice info debug"`
+}
+
+type Syslog struct {
+}
+
+func NewSyslog() BackendInterface {
+	return &Syslog{}
+}
+
+func (*Syslog) GetConfig() interface{} {
+	return SyslogConfig{}
+}
+
+func (*Syslog) Send(configIface interface{}, title string, message string, status *bool) error {
+	config, ok := configIface.(SyslogConfig)
+	if !ok {
+		return fmt.Errorf("invalid config")
+	}
+	var facility syslog.Priority
+	if config.Facility != nil {
+		switch *config.Facility {
+		case "kern":
+			facility = syslog.LOG_KERN
+		case "user":
+			facility = syslog.LOG_USER
+		case "mail":
+			facility = syslog.LOG_MAIL
+		case "daemon":
+			facility = syslog.LOG_DAEMON
+		case "auth":
+			facility = syslog.LOG_AUTH
+		case "syslog":
+			facility = syslog.LOG_SYSLOG
+		case "lpr":
+			facility = syslog.LOG_LPR
+		case "news":
+			facility = syslog.LOG_NEWS
+		case "uucp":
+			facility = syslog.LOG_UUCP
+		case "cron":
+			facility = syslog.LOG_CRON
+		case "authpriv":
+			facility = syslog.LOG_AUTHPRIV
+		case "ftp":
+			facility = syslog.LOG_FTP
+		case "local0":
+			facility = syslog.LOG_LOCAL0
+		case "local1":
+			facility = syslog.LOG_LOCAL1
+		case "local2":
+			facility = syslog.LOG_LOCAL2
+		case "local3":
+			facility = syslog.LOG_LOCAL3
+		case "local4":
+			facility = syslog.LOG_LOCAL4
+		case "local5":
+			facility = syslog.LOG_LOCAL5
+		case "local6":
+			facility = syslog.LOG_LOCAL6
+		case "local7":
+			facility = syslog.LOG_LOCAL7
+		}
+	} else {
+		facility = syslog.LOG_USER
+	}
+	var severity syslog.Priority
+	if config.Severity != nil {
+		switch *config.Severity {
+		case "emerg":
+			severity = syslog.LOG_EMERG
+		case "alert":
+			severity = syslog.LOG_ALERT
+		case "crit":
+			severity = syslog.LOG_CRIT
+		case "err":
+			severity = syslog.LOG_ERR
+		case "warning":
+			severity = syslog.LOG_WARNING
+		case "notice":
+			severity = syslog.LOG_NOTICE
+		case "info":
+			severity = syslog.LOG_INFO
+		case "debug":
+			severity = syslog.LOG_DEBUG
+		}
+	} else {
+		severity = syslog.LOG_INFO
+	}
+
+	logger, err := syslog.New(facility|severity, "")
+	if err != nil {
+		return err
+	}
+	defer logger.Close()
+	logger.Info(message)
+
+	return nil
+}

From 76f914e29efcbec4c8211a57667b87164ddb9a84 Mon Sep 17 00:00:00 2001
From: Takanori Hirano <me@hrntknr.net>
Date: Tue, 26 Jul 2022 01:29:46 +0900
Subject: [PATCH 5/5] v1.0.1 README

---
 README.md | 48 ++++++++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 46 insertions(+), 2 deletions(-)

diff --git a/README.md b/README.md
index 4e5f77b..6e0c56b 100644
--- a/README.md
+++ b/README.md
@@ -16,9 +16,9 @@ However, support for the backend type is poorer than ntfy.
 
 ```sh
 $ # for linux
-$ sudo curl -L https://github.com/hrntknr/ntf/releases/download/v0.1.9/ntf-x86_64-unknown-linux-gnu -o /usr/local/bin/ntf
+$ sudo curl -L https://github.com/hrntknr/ntf/releases/download/v1.0.1/ntf-x86_64-unknown-linux-gnu -o /usr/local/bin/ntf
 $ # for mac
-$ # sudo curl -L https://github.com/hrntknr/ntf/releases/download/v0.1.9/ntf-x86_64-apple-darwin -o /usr/local/bin/ntf
+$ # sudo curl -L https://github.com/hrntknr/ntf/releases/download/v1.0.1/ntf-x86_64-apple-darwin -o /usr/local/bin/ntf
 $ sudo chmod +x /usr/local/bin/ntf
 
 $ echo -e 'backends: ["pushover"]\npushover: {"user_key": "t0k3n"}' > ~/.ntf.yml
@@ -38,6 +38,45 @@ $ echo 'export AUTO_NTF_DONE_LONGER_THAN=10' >> ~/.bashrc
 $ echo 'eval "$(ntf shell-integration)"' >> ~/.bashrc
 ```
 
+```
+> $ ntf --help
+Usage:
+   [command]
+
+Available Commands:
+  done              Execute the command and notify the message
+  help              Help about any command
+  send              send notification
+  shell-integration shell-integration
+
+Flags:
+  -h, --help   help for this command
+
+Use " [command] --help" for more information about a command.
+
+> $ ntf send --help
+send notification
+
+Usage:
+   send [flags]
+
+Flags:
+      --backends strings
+  -h, --help                       help for send
+      --line.token string
+      --pushbullet.token string
+      --pushover.device string
+      --pushover.expire int
+      --pushover.priority string
+      --pushover.retry int
+      --pushover.user_key string
+      --slack.color string
+      --slack.webhook string
+      --syslog.facility string
+      --syslog.severity string
+  -t, --title string               override title
+```
+
 ## Supported backend
 
 ### [slack: (webhook)](https://api.slack.com/messaging/webhooks)
@@ -111,3 +150,8 @@ syslog:
   facility: 'user' #option
   severity: 'emerg' #option
 ```
+
+## Custom backend
+
+You can add the custom backend you want by simply creating a struct that implements the interface in the backends folder.  
+Or, submit a backend request that you would like to use via Issue.