libraries/flagger
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26
README.md
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@ -1,31 +1,31 @@
[![GoDoc](https://godoc.org/go.dev.pztrn.name/flagger?status.svg)](https://godoc.org/go.dev.pztrn.name/flagger) [![Drone (self-hosted)](https://img.shields.io/drone/build/libraries/flagger?server=https%3A%2F%2Fci.dev.pztrn.name)](https://ci.dev.pztrn.name/libraries/flagger/) [![Discord](https://img.shields.io/discord/632359730089689128)](https://discord.gg/qHN6KsD) ![Keybase XLM](https://img.shields.io/keybase/xlm/pztrn) [![Go Report Card](https://goreportcard.com/badge/go.dev.pztrn.name/flagger)](https://goreportcard.com/report/go.dev.pztrn.name/flagger)
# Flagger # Flagger
[![GoDoc](https://godoc.org/go.dev.pztrn.name/flagger?status.svg)](https://godoc.org/go.dev.pztrn.name/flagger) [![Drone (self-hosted)](https://img.shields.io/drone/build/libraries/flagger?server=https%3A%2F%2Fci.dev.pztrn.name)](https://ci.dev.pztrn.name/libraries/flagger/) [![Discord](https://img.shields.io/discord/632359730089689128)](https://discord.gg/qHN6KsD) ![Keybase XLM](https://img.shields.io/keybase/xlm/pztrn) [![Go Report Card](https://goreportcard.com/badge/go.dev.pztrn.name/flagger)](https://goreportcard.com/report/go.dev.pztrn.name/flagger)
Flagger is an arbitrary CLI flags parser, like argparse in Python. Flagger is an arbitrary CLI flags parser, like argparse in Python.
Flagger is able to parse boolean, integer and string flags. Flagger is able to parse boolean, integer and string flags.
# Installation ## Installation
``` ```bash
go get -u -v go.dev.pztrn.name/flagger go get -u -v go.dev.pztrn.name/flagger
``` ```
# Usage ## Usage
Flagger requires logging interface to be passed on initialization. Flagger requires logging interface to be passed on initialization.
See ``loggerinterface.go`` for required logging functions. See ``loggerinterface.go`` for required logging functions.
It is able to run with standart log package, in that case It is able to run with standart log package, in that case
initialize flagger like: initialize flagger like:
``` ```go
flgr = flagger.New("My Super Program", flagger.LoggerInterface(log.New(os.Stdout, "testing logger: ", log.Lshortfile))) flgr = flagger.New("My Super Program", flagger.LoggerInterface(log.New(os.Stdout, "testing logger: ", log.Lshortfile)))
flgr.Initialize() flgr.Initialize()
``` ```
Adding a flag is easy, just fill ``Flag`` structure and pass to ``AddFlag()`` call: Adding a flag is easy, just fill ``Flag`` structure and pass to ``AddFlag()`` call:
``` ```go
flag_bool := Flag{ flag_bool := Flag{
Name: "boolflag", Name: "boolflag",
Description: "Boolean flag", Description: "Boolean flag",
@ -41,23 +41,17 @@ if err != nil {
After adding all neccessary flags you should issue ``Parse()`` call to get After adding all neccessary flags you should issue ``Parse()`` call to get
them parsed: them parsed:
``` ```go
flgr.Parse() flgr.Parse()
``` ```
After parsed they can be obtained everywhere you want, like: After parsed they can be obtained everywhere you want, like:
``` ```go
val, err := flgr.GetBoolValue("boolflag") val, err := flgr.GetBoolValue("boolflag")
if err != nil { if err != nil {
... ...
} }
``` ```
For more examples take a look at ``flagger_test.go`` file or [at GoDoc](https://godoc.org/gitlab.com/pztrn/flagger). For more examples take a look at ``flagger_test.go`` file or [at GoDoc](https://godoc.org/go.dev.pztrn.name/flagger).
# Get help
If you want to report a bug - feel free to report it via Gitlab's issues system. Note that everything that isn't a bug report or feature request will be closed without any futher comments.
If you want to request some help (without warranties), propose a feature request or discuss flagger in any way - please use our mailing lists at flagger@googlegroups.com. To be able to send messages there you should subscribe by sending email to ``flagger+subscribe@googlegroups.com``, subject and mail body can be random.

2
example/main.go
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@ -9,7 +9,7 @@ var f *flagger.Flagger
func main() { func main() {
f = flagger.New("testprogram", nil) f = flagger.New("testprogram", nil)
f.Initialize() f.Initialize()
f.AddFlag(&flagger.Flag{ _ = f.AddFlag(&flagger.Flag{
Name: "testflag", Name: "testflag",
Description: "Just a test flag", Description: "Just a test flag",
Type: "bool", Type: "bool",

4
flagger.go
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@ -28,7 +28,6 @@ import (
"errors" "errors"
"flag" "flag"
"os" "os"
"sync"
) )
// Flagger implements (kinda) extended CLI parameters parser. As it // Flagger implements (kinda) extended CLI parameters parser. As it
@ -39,8 +38,7 @@ import (
// parse or get. // parse or get.
type Flagger struct { type Flagger struct {
// Flags that was added by user. // Flags that was added by user.
flags map[string]*Flag flags map[string]*Flag
flagsMutex sync.Mutex
// Flags that will be passed to flag module. // Flags that will be passed to flag module.
flagsBool map[string]*bool flagsBool map[string]*bool

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go.mod
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@ -3,7 +3,6 @@ module go.dev.pztrn.name/flagger
go 1.13 go 1.13
require ( require (
github.com/davecgh/go-spew v1.1.1 // indirect
github.com/pmezard/go-difflib v1.0.0 // indirect
github.com/stretchr/testify v1.2.2 github.com/stretchr/testify v1.2.2
gitlab.com/pztrn/flagger v0.0.0-20191015160147-a9ca273d8b73
) )

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go.sum
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@ -4,3 +4,5 @@ github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZb
github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4= github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
github.com/stretchr/testify v1.2.2 h1:bSDNvY7ZPG5RlJ8otE/7V6gMiyenm9RtJ7IUVIAoJ1w= github.com/stretchr/testify v1.2.2 h1:bSDNvY7ZPG5RlJ8otE/7V6gMiyenm9RtJ7IUVIAoJ1w=
github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs= github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
gitlab.com/pztrn/flagger v0.0.0-20191015160147-a9ca273d8b73 h1:3wo+sJrNguob5mLnQQmH2/Rh2oCuEhIplgWpAMutFzY=
gitlab.com/pztrn/flagger v0.0.0-20191015160147-a9ca273d8b73/go.mod h1:I+FxZN2hnd4iELlBFizaDD4QJy92x6Ky4+76U7L3gBQ=