├── .gitignore
├── LICENSE
├── Makefile
├── README.md
├── go.mod
├── go.sum
├── main.go
└── srlt.yaml


/.gitignore:
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1 | build/
2 | 


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/LICENSE:
--------------------------------------------------------------------------------
 1 | Command Line Interface for https://github.com/fsnotify/fsnotify
 2 | Copyright (C) 2016 Oleg Lebedev
 3 | 
 4 | Permission is hereby granted, free of charge, to any person obtaining
 5 | a copy of this software and associated documentation files (the "Software"),
 6 | to deal in the Software without restriction, including without limitation
 7 | the rights to use, copy, modify, merge, publish, distribute, sublicense,
 8 | and/or sell copies of the Software, and to permit persons to whom the
 9 | Software is furnished to do so, subject to the following conditions:
10 | 
11 | The above copyright notice and this permission notice shall be included
12 | in all copies or substantial portions of the Software.
13 | 
14 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
15 | EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
16 | OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
17 | IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
18 | DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
19 | TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE
20 | OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
21 | 
22 | 


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/Makefile:
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 1 | P 			= $(shell pwd | sed 's:.*/::')
 2 | SOURCE  = $(wildcard *.go)
 3 | TAG     = $(shell git describe --tags)
 4 | GOBUILD = go build -ldflags '-w'
 5 | 
 6 | # $(tag) here will contain either `-1.0-` or just `-`
 7 | ALL = \
 8 | 	$(foreach arch,64,\
 9 |     $(foreach tag,-$(TAG)-,\
10 | 	$(foreach suffix,win.exe linux osx,\
11 | 		build/$P$(tag)$(arch)-$(suffix))))
12 | 
13 | build: $(ALL)
14 | 
15 | # os is determined as thus: if variable of suffix exists, it's taken, if not, then
16 | # suffix itself is taken
17 | win.exe = windows
18 | osx = darwin
19 | build/$P-$(TAG)-64-%: $(SOURCE)
20 | 	@mkdir -p $(@D)
21 | 	CGO_ENABLED=0 GOOS=$(firstword $($*) $*) GOARCH=amd64 $(GOBUILD) -o $@
22 | 	@cd $(@D) && tar cvzf $(@F).tar.gz $(@F)
23 | 
24 | build/$P-$(TAG)-32-%: $(SOURCE)
25 | 	@mkdir -p $(@D)
26 | 	CGO_ENABLED=0 GOOS=$(firstword $($*) $*) GOARCH=386 $(GOBUILD) -o $@
27 | 	@cd $(@D) && tar cvzf $(@F).tar.gz $(@F)
28 | 
29 | build/$P-%: build/$P-$(TAG)-%
30 | 	@mkdir -p $(@D)
31 | 	cd $(@D) && ln -sf $(<F) $(@F)
32 | 


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/README.md:
--------------------------------------------------------------------------------
 1 | # on
 2 | 
 3 | Command line interface for [fsnotify](https://github.com/fsnotify/fsnotify).
 4 | 
 5 | It watches the files and writes the event right into _stdout_. Pretty useful to complex bash pipe's manipulation.
 6 | 
 7 | ### Usage
 8 | 
 9 | Install: `go get github.com/olebedev/on` or compiled binaries at [releases](https://github.com/olebedev/on/releases) page.
10 | 
11 | ```
12 | $ on --help
13 | NAME:
14 |    on - cli for fsnotify
15 | 
16 | USAGE:
17 |    on [options] [path]
18 | 
19 |    Path could be mix of folders and filepaths, default is '.'.
20 |    Regular usecase is watch the file's changes and execute some
21 |    bash script or command line tool. It could be done in this way:
22 | 
23 |    on | xargs -n1 -I{} <program>
24 | 
25 | VERSION:
26 |    0.1.0
27 | 
28 | AUTHOR(S):
29 |    olebedev <ole6edev@gmail.com>
30 | 
31 | COMMANDS:
32 | GLOBAL OPTIONS:
33 |    --template, -t "{{.Name}}" output template to render received event, see: https://godoc.org/gopkg.in/fsnotify.v1#Event
34 |    --mask, -m "15"    event's bitwise mask, see: https://godoc.org/gopkg.in/fsnotify.v1#Op
35 |    --help, -h     show help
36 |    --version, -v    print the version
37 | ```
38 | 
39 | ### License
40 | MIT
41 | 


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/go.mod:
--------------------------------------------------------------------------------
 1 | module olebedev/on
 2 | 
 3 | go 1.13
 4 | 
 5 | require (
 6 | 	github.com/urfave/cli v1.22.2
 7 | 	golang.org/x/sys v0.0.0-20191228213918-04cbcbbfeed8 // indirect
 8 | 	gopkg.in/fsnotify.v1 v1.4.7
 9 | )
10 | 


--------------------------------------------------------------------------------
/go.sum:
--------------------------------------------------------------------------------
 1 | github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
 2 | github.com/cpuguy83/go-md2man/v2 v2.0.0-20190314233015-f79a8a8ca69d h1:U+s90UTSYgptZMwQh2aRr3LuazLJIa+Pg3Kc1ylSYVY=
 3 | github.com/cpuguy83/go-md2man/v2 v2.0.0-20190314233015-f79a8a8ca69d/go.mod h1:maD7wRr/U5Z6m/iR4s+kqSMx2CaBsrgA7czyZG/E6dU=
 4 | github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 5 | github.com/russross/blackfriday/v2 v2.0.1 h1:lPqVAte+HuHNfhJ/0LC98ESWRz8afy9tM/0RK8m9o+Q=
 6 | github.com/russross/blackfriday/v2 v2.0.1/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
 7 | github.com/shurcooL/sanitized_anchor_name v1.0.0 h1:PdmoCO6wvbs+7yrJyMORt4/BmY5IYyJwS/kOiWx8mHo=
 8 | github.com/shurcooL/sanitized_anchor_name v1.0.0/go.mod h1:1NzhyTcUVG4SuEtjjoZeVRXNmyL/1OwPU0+IJeTBvfc=
 9 | github.com/urfave/cli v1.22.2 h1:gsqYFH8bb9ekPA12kRo0hfjngWQjkJPlN9R0N78BoUo=
10 | github.com/urfave/cli v1.22.2/go.mod h1:Gos4lmkARVdJ6EkW0WaNv/tZAAMe9V7XWyB60NtXRu0=
11 | golang.org/x/sys v0.0.0-20191228213918-04cbcbbfeed8 h1:JA8d3MPx/IToSyXZG/RhwYEtfrKO1Fxrqe8KrkiLXKM=
12 | golang.org/x/sys v0.0.0-20191228213918-04cbcbbfeed8/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
13 | gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
14 | gopkg.in/fsnotify.v1 v1.4.7 h1:xOHLXZwVvI9hhs+cLKq5+I5onOuwQLhQwiu63xxlHs4=
15 | gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys=
16 | gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
17 | 


--------------------------------------------------------------------------------
/main.go:
--------------------------------------------------------------------------------
  1 | package main
  2 | 
  3 | import (
  4 | 	"bytes"
  5 | 	"fmt"
  6 | 	"log"
  7 | 	"os"
  8 | 	"os/signal"
  9 | 	"path/filepath"
 10 | 	"text/template"
 11 | 
 12 | 	"github.com/urfave/cli"
 13 | 	"gopkg.in/fsnotify.v1"
 14 | )
 15 | 
 16 | func main() {
 17 | 	app := cli.NewApp()
 18 | 	app.Usage = "cli for fsnotify"
 19 | 	app.UsageText = `on [options] [path]
 20 | 
 21 |    Path could be mix of folders and filepaths, default is '.'.
 22 |    Regular usecase is watch the file's changes and execute some
 23 |    bash script or command line tool. It could be done in this way:
 24 | 
 25 |    on | xargs -n1 -I{} <program>`
 26 | 
 27 | 	app.Author = "olebedev <ole6edev@gmail.com>"
 28 | 	app.Version = "0.1.0"
 29 | 	app.Flags = []cli.Flag{
 30 | 		cli.StringFlag{
 31 | 			Name:  "template,t",
 32 | 			Usage: "output template to render received event, see: https://godoc.org/gopkg.in/fsnotify.v1#Event",
 33 | 			Value: "{{.Name}}",
 34 | 		},
 35 | 		cli.IntFlag{
 36 | 			Name:  "mask,m",
 37 | 			Usage: "event's bitwise mask, see: https://godoc.org/gopkg.in/fsnotify.v1#Op",
 38 | 			Value: 15,
 39 | 		},
 40 | 		cli.BoolFlag{
 41 | 			Name:  "r",
 42 | 			Usage: "watch given paths recursively",
 43 | 		},
 44 | 	}
 45 | 	app.Action = func(c *cli.Context) {
 46 | 		t, err := template.New("output").Parse(c.String("template"))
 47 | 		if err != nil {
 48 | 			log.Fatal(err)
 49 | 		}
 50 | 		id := fsnotify.Op(c.Int("mask"))
 51 | 
 52 | 		watcher, err := fsnotify.NewWatcher()
 53 | 		if err != nil {
 54 | 			log.Fatal(err)
 55 | 		}
 56 | 		defer watcher.Close()
 57 | 
 58 | 		done := make(chan os.Signal)
 59 | 		signal.Notify(done, os.Interrupt)
 60 | 
 61 | 		go func() {
 62 | 			for {
 63 | 				select {
 64 | 				case event := <-watcher.Events:
 65 | 					// if bitwise mask covers the event
 66 | 					if event.Op&id == event.Op && event.Name != "" {
 67 | 						fmt.Println(render(t, event))
 68 | 					}
 69 | 				case err := <-watcher.Errors:
 70 | 					if err != nil {
 71 | 						fmt.Fprintln(os.Stderr, err)
 72 | 					}
 73 | 				}
 74 | 			}
 75 | 		}()
 76 | 
 77 | 		args := c.Args()
 78 | 		if len(args) == 0 {
 79 | 			args = []string{"."}
 80 | 		}
 81 | 
 82 | 		for _, arg := range args {
 83 | 			if err := addPath(watcher, arg, c.Bool("r")); err != nil {
 84 | 				fmt.Fprintln(os.Stderr, err)
 85 | 				os.Exit(1)
 86 | 			}
 87 | 		}
 88 | 
 89 | 		<-done
 90 | 		watcher.Close()
 91 | 	}
 92 | 
 93 | 	app.Run(os.Args)
 94 | }
 95 | 
 96 | func render(t *template.Template, e fsnotify.Event) string {
 97 | 	var doc bytes.Buffer
 98 | 	t.Execute(&doc, e)
 99 | 
100 | 	return doc.String()
101 | }
102 | 
103 | func addPath(w *fsnotify.Watcher, name string, recursively bool) error {
104 | 	f, err := os.Stat(name)
105 | 	if err != nil {
106 | 		return err
107 | 	}
108 | 
109 | 	if !f.IsDir() || !recursively {
110 | 		return w.Add(name)
111 | 	}
112 | 
113 | 	return filepath.Walk(name, func(p string, f os.FileInfo, err error) error {
114 | 		if err != nil {
115 | 			return err
116 | 		}
117 | 		if f.IsDir() {
118 | 			return w.Add(p)
119 | 		}
120 | 		return nil
121 | 	})
122 | }
123 | 


--------------------------------------------------------------------------------
/srlt.yaml:
--------------------------------------------------------------------------------
 1 | base: ./vendor
 2 | dependencies:
 3 |   github.com/codegangsta/cli:
 4 |     type: git
 5 |     name: github.com/codegangsta/cli
 6 |     remote: https://github.com/codegangsta/cli
 7 |     commit: 222ec6fb7eb8a3da24cfa4017694ba45e3f1f516
 8 |   golang.org/x/sys:
 9 |     type: git
10 |     name: golang.org/x/sys
11 |     remote: https://github.com/golang/sys
12 |     commit: c8bc69bc2db9c57ccf979550bc69655df5039a8a
13 |   gopkg.in/fsnotify.v1:
14 |     type: git
15 |     name: gopkg.in/fsnotify.v1
16 |     remote: https://gopkg.in/fsnotify.v1
17 |     commit: 30411dbcefb7a1da7e84f75530ad3abe4011b4f8
18 | 


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