first version

.github/dependabot.yml

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+version: 2
+updates:
+  - package-ecosystem: gomod
+    directory: /
+    schedule:
+      interval: daily
+    open-pull-requests-limit: 10
+  - package-ecosystem: github-actions
+    directory: "/"
+    schedule:
+      interval: daily
+    open-pull-requests-limit: 10

.github/workflows/changelog.yml

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+name: update changelog
+
+on:
+  release:
+    types: [released]
+
+permissions: {}
+
+jobs:
+  changelog:
+    permissions:
+      contents: write
+    secrets: inherit
+    uses: bavix/.github/.github/workflows/changelog.yml@0.2.5

.github/workflows/golangci-lint.yml

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+name: golangci-lint
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+permissions:
+  contents: read
+jobs:
+  golangci:
+    name: lint
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        go-version: [ '1.22' ]
+    steps:
+      - uses: actions/checkout@v4
+      - name: Setup Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: ${{ matrix.go-version }}
+          cache: true
+      - name: golangci-lint
+        uses: golangci/golangci-lint-action@v4
+        with:
+          version: v1.57.2

.github/workflows/release.yaml

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+name: go release
+
+on:
+  release:
+    types: [created]
+
+jobs:
+  build:
+    permissions:
+      contents: write
+    uses: bavix/.github/.github/workflows/go-release-binary.yml@0.2.5

.github/workflows/unit.yml

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+name: Unit
+on:
+  pull_request:
+    branches:
+      - master
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        go-version: [ '1.22' ]
+    steps:
+      - uses: actions/checkout@v4
+      - name: Setup Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: ${{ matrix.go-version }}
+          cache: true
+      - name: Install dependencies
+        run: go get .
+      - name: Test with Go
+        run: go test -json ./... 2>&1 | tee -a TestResults-${{ matrix.go-version }}.json
+      - name: Upload Go test results
+        uses: actions/upload-artifact@v4
+        with:
+          name: Go-results-${{ matrix.go-version }}
+          path: TestResults-${{ matrix.go-version }}.json

.gitignore

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+# 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
+
+.idea/
+vendor/

.golangci.yml

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+run:
+  timeout: 1m
+linters:
+  enable-all: true
+  disable:
+    # deprecated
+    - nosnakecase
+    - structcheck
+    - interfacer
+    - deadcode
+    - exhaustivestruct
+    - maligned
+    - ifshort
+    - varcheck
+    - golint
+    - scopelint
+    # not relevant
+    - varnamelen
+    - wrapcheck
+    - paralleltest
+    - exhaustruct
+linters-settings:
+  lll:
+    line-length: 160
+  gci:
+    sections:
+      - Standard
+      - Default
+      - Prefix(github.com/bavix)
+  depguard:
+    rules:
+      main:
+        allow:
+          - $gostd
+          - github.com
+issues:
+  exclude-rules:
+    - path: (.+)_test.go
+      linters:
+        - dupl

LICENSE

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+MIT License
+
+Copyright (c) 2024 bavix
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

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+# features
+
+Simple implementation of the flags feature.
+
+### Usage
+
+```golang
+import "github.com/bavix/features"
+
+const (
+    Dishing features.Flag = iota
+    Washing
+    Cooking
+    Driving
+)
+//...
+toggles := features.New(Dishing, Washing, Cooking)
+
+toggles.Has(Cooking) // true
+toggles.Has(Driving) // false
+```
+
+---
+Supported by
+
+[![Supported by JetBrains](https://cdn.rawgit.com/bavix/development-through/46475b4b/jetbrains.svg)](https://www.jetbrains.com/)

flag.go

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+package features
+
+type Flag uint64
+type Toggles uint64
+
+func New(flags ...Flag) Toggles {
+	var r Toggles
+	for _, m := range flags {
+		r |= Toggles(1 << m)
+	}
+
+	return r
+}
+
+func (u Toggles) Has(flags ...Flag) bool {
+	for _, m := range flags {
+		if u&Toggles(1<<m) == 0 {
+			return false
+		}
+	}
+
+	return true
+}

flag_test.go

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+package features_test
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/require"
+
+	"github.com/bavix/features"
+)
+
+const (
+	Dishing features.Flag = iota
+	Washing
+	Cooking
+	Driving
+)
+
+func TestOptions_Has(t *testing.T) {
+	toggles := features.New(Dishing, Washing, Cooking)
+
+	require.True(t, toggles.Has(Cooking, Washing, Dishing))
+	require.True(t, toggles.Has(Dishing))
+	require.True(t, toggles.Has(Cooking))
+	require.True(t, toggles.Has(Washing))
+
+	require.False(t, toggles.Has(Cooking, Washing, Dishing, Driving))
+	require.False(t, toggles.Has(Driving))
+}

go.mod

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+module github.com/bavix/features
+
+go 1.22
+
+require github.com/stretchr/testify v1.9.0
+
+require (
+	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
+)

go.sum

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+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/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/stretchr/testify v1.9.0 h1:HtqpIVDClZ4nwg75+f6Lvsy/wHu+3BoSGCbBAcpTsTg=
+github.com/stretchr/testify v1.9.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=