Add 'generate project-id' cmd

.github/workflows/build.yml

@@ -27,3 +27,12 @@ jobs:
 
     - name: Lint
       run: go vet -v ./...
+
+    - name: Install locally
+      run: go install ./cmd/xd
+
+    - name: Test installed binary
+      run: xd --help
+
+    - name: Test installed binary
+      run: xd gen project-id customer.squeeze.one

README.md

@@ -8,6 +8,22 @@ This project implements developer tools for DEXPRO employees.
 
 If you want to use these tools, you can install them from source:
 
-```bash
+```shell
 go install github.com/DEXPRO-Solutions-GmbH/xd/cmd/xd@latest
 ```
+
+Check if your installation worked. Simply run `xd --help` like this:
+
+```shell
+xd --help
+
+DEXPRO Developer CLI with an X
+
+Usage:
+  xd [command]
+
+Available Commands:
+  completion  Generate the autocompletion script for the specified shell
+  help        Help about any command
+  ...         ...
+```

cmd/gen.go

@@ -0,0 +1,15 @@
+package cmd
+
+import "github.com/spf13/cobra"
+
+func newGenCmd() *cobra.Command {
+	cmd := &cobra.Command{
+		Use:     "generate",
+		Aliases: []string{"gen"},
+		Short:   "Generate stuff",
+	}
+
+	cmd.AddCommand(newGenProjectIDCommand())
+
+	return cmd
+}

cmd/gen_project_id.go

@@ -0,0 +1,29 @@
+package cmd
+
+import (
+	"fmt"
+
+	"github.com/DEXPRO-Solutions-GmbH/xd/pkg/dexpro"
+	"github.com/spf13/cobra"
+)
+
+func newGenProjectIDCommand() *cobra.Command {
+	cmd := &cobra.Command{
+		Use:   "project-id <domain>",
+		Short: "Generate a project ID based on a Domain",
+		Long: `Generate a project ID based on a Domain. Result is printed to stdout.
+
+The generated ID will always be the same since it is a UUIDv5 derived from a hardcoded namespace UUID.`,
+		Args: cobra.ExactArgs(1),
+	}
+
+	cmd.Run = func(cmd *cobra.Command, args []string) {
+		domain := args[0]
+
+		tenantID := dexpro.GenerateProjectID(domain)
+
+		fmt.Println(tenantID)
+	}
+
+	return cmd
+}

cmd/root.go

@@ -8,5 +8,7 @@ func NewRootCmd() *cobra.Command {
 		Short: "DEXPRO Developer CLI with an X",
 	}
 
+	cmd.AddCommand(newGenCmd())
+
 	return cmd
 }

go.mod

@@ -8,6 +8,11 @@ require (
 )
 
 require (
+	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/inconshreveable/mousetrap v1.1.0 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/spf13/pflag v1.0.5 // indirect
+	github.com/stretchr/objx v0.5.0 // indirect
+	github.com/stretchr/testify v1.8.4 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
 )

go.sum

@@ -1,12 +1,27 @@
 github.com/cpuguy83/go-md2man/v2 v2.0.3/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46tRHOmNcaadrF8o=
+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/google/uuid v1.5.0 h1:1p67kYwdtXjb0gL0BPiP1Av9wiZPo5A8z2cWkTZ+eyU=
 github.com/google/uuid v1.5.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 github.com/inconshreveable/mousetrap v1.1.0 h1:wN+x4NVGpMsO7ErUn/mUI3vEoE6Jt13X2s0bqwp9tc8=
 github.com/inconshreveable/mousetrap v1.1.0/go.mod h1:vpF70FUmC8bwa3OWnCshd2FqLfsEA9PFc4w1p2J65bw=
+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/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
 github.com/spf13/cobra v1.8.0 h1:7aJaZx1B85qltLMc546zn58BxxfZdR/W22ej9CFoEf0=
 github.com/spf13/cobra v1.8.0/go.mod h1:WXLWApfZ71AjXPya3WOlMsY9yMs7YeiHhFVlvLyhcho=
 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/objx v0.4.0/go.mod h1:YvHI0jy2hoMjB+UWwv71VJQ9isScKT/TqJzVSSt89Yw=
+github.com/stretchr/objx v0.5.0 h1:1zr/of2m5FGMsad5YfcqgdqdWrIhu+EBEJRhR1U7z/c=
+github.com/stretchr/objx v0.5.0/go.mod h1:Yh+to48EsGEfYuaHDzXPcE3xhTkx73EhmCGUpEOglKo=
+github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
+github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO+kdMU+MU=
+github.com/stretchr/testify v1.8.4 h1:CcVxjf3Q8PM0mHUKJCdn+eZZtm5yQwehR5yeSVQQcUk=
+github.com/stretchr/testify v1.8.4/go.mod h1:sz/lmYIOXD/1dqDmKjjqLyZ2RngseejIcXlSw2iwfAo=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

pkg/dexpro/uuid.go

@@ -0,0 +1,14 @@
+package dexpro
+
+import "github.com/google/uuid"
+
+// GenerateProjectID generates a UUID from a domain name.
+//
+// This panics if the hardcoded namespace UUID is not valid. That should never happen. If it does,
+// contact a library maintainer.
+func GenerateProjectID(domain string) uuid.UUID {
+	// The namespace is a predefined UUID. This will not change and is thus hardcoded.
+	namespace := uuid.MustParse("4befef11-1d7c-5958-8343-7aab6779a086")
+
+	return uuid.NewSHA1(namespace, []byte(domain))
+}

pkg/dexpro/uuid_test.go

@@ -0,0 +1,11 @@
+package dexpro
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestGenerateProjectID(t *testing.T) {
+	assert.Equal(t, "659bc69a-2b8f-5746-99f5-4ba0f0a09238", GenerateProjectID("squeeze.docker.localhost").String())
+}