From d23e6e531fddcb1dd8c603a294fefa4a363d0945 Mon Sep 17 00:00:00 2001
From: Dan Anglin <daangling@gmail.com>
Date: Fri, 24 Feb 2023 18:07:08 +0000
Subject: [PATCH] build: allow mage to deploy all services

- Mage can now render templates for all services using:
  mage render all

- Mage can now deploy all services using:
  mage deploy all

- Deploy now depends on Render

- If rendering Forgejo templates mage ensures that the Forgejo
  binary is downloaded first.
---
 magefiles/deploy.go | 41 ++++++++++++++++++++++++++++++++++
 magefiles/mage.go   | 54 ++++-----------------------------------------
 magefiles/render.go | 47 +++++++++++++++++++++++++++++++++++++++
 3 files changed, 92 insertions(+), 50 deletions(-)
 create mode 100644 magefiles/deploy.go

diff --git a/magefiles/deploy.go b/magefiles/deploy.go
new file mode 100644
index 0000000..a9532b6
--- /dev/null
+++ b/magefiles/deploy.go
@@ -0,0 +1,41 @@
+//go:build mage
+
+package main
+
+import (
+	"fmt"
+	"os"
+
+	"github.com/magefile/mage/mg"
+	"github.com/magefile/mage/sh"
+)
+
+// Deploy deploys the services to the Flow Platform.
+func Deploy(name string) error {
+	mg.Deps(
+		mg.F(Render, name),
+	)
+
+	cfg, err := newConfig(configFile)
+	if err != nil {
+		return fmt.Errorf("unable to load the configuration; %w", err)
+	}
+
+	os.Setenv("DOCKER_HOST", cfg.DockerHost)
+
+	command := []string{
+		"docker",
+		"compose",
+		"--project-directory",
+		rootBuildDir+"/compose",
+		"up",
+		"-d",
+		"--build",
+	}
+
+	if name != "all" {
+		command = append(command, name)
+	}
+
+	return sh.Run(command[0], command[1:]...)
+}
diff --git a/magefiles/mage.go b/magefiles/mage.go
index 7b33d7f..8ed2c3a 100644
--- a/magefiles/mage.go
+++ b/magefiles/mage.go
@@ -7,14 +7,13 @@ import (
 	"os"
 
 	"github.com/magefile/mage/sh"
-	"github.com/magefile/mage/mg"
 )
 
 const (
-	configFile          string = "./config/services.json"
-	rootBuildDir        string = "./build"
-	templateExtension   string = ".gotmpl"
-	rootTemplatesDir    string = "./templates"
+	configFile        string = "./config/services.json"
+	rootBuildDir      string = "./build"
+	templateExtension string = ".gotmpl"
+	rootTemplatesDir  string = "./templates"
 )
 
 // Clean cleans the workspace.
@@ -39,51 +38,6 @@ func Clean() error {
 	return nil
 }
 
-// Render renders the template files.
-func Render(name string) error {
-	if name == "forgejo" {
-		mg.Deps(DownloadForgejo)
-	}
-
-	cfg, err := newConfig(configFile)
-	if err != nil {
-		return fmt.Errorf("unable to load the configuration; %v", err)
-	}
-
-	if name != "compose" {
-		if err := render(cfg, "compose"); err != nil {
-			return fmt.Errorf("an error occurred whilst rendering the compose file; %w", err)
-		}
-	}
-
-	if err := render(cfg, name); err != nil {
-		return fmt.Errorf("an error occurred whilst rendering the templates; %w", err)
-	}
-
-	return nil
-}
-
-// Deploy deploys the services to the Flow Platform.
-func Deploy(name string) error {
-	cfg, err := newConfig(configFile)
-	if err != nil {
-		return fmt.Errorf("unable to load the configuration; %w", err)
-	}
-
-	os.Setenv("DOCKER_HOST", cfg.DockerHost)
-
-	return sh.Run(
-		"docker",
-		"compose",
-		"--project-directory",
-		rootBuildDir+"/compose",
-		"up",
-		"-d",
-		"--build",
-		name,
-	)
-}
-
 // DownloadForgejo downloads the Forgejo binary from Codeberg.
 func DownloadForgejo() error {
 	cfg, err := newConfig(configFile)
diff --git a/magefiles/render.go b/magefiles/render.go
index 2c1db6c..b716bd7 100644
--- a/magefiles/render.go
+++ b/magefiles/render.go
@@ -4,12 +4,59 @@ package main
 
 import (
 	"fmt"
+	"log"
 	"os"
 	"path/filepath"
 	"strings"
 	"text/template"
+
+	"github.com/magefile/mage/mg"
 )
 
+// Render renders the template files.
+func Render(name string) error {
+	cfg, err := newConfig(configFile)
+	if err != nil {
+		return fmt.Errorf("unable to load the configuration; %v", err)
+	}
+
+	if name == "forgejo" || name == "all" {
+		mg.Deps(DownloadForgejo)
+	}
+
+	if name == "all" {
+		objects, err := os.ReadDir(rootTemplatesDir)
+		if err != nil {
+			return fmt.Errorf("unable to read the templates directory; %w", err)
+		}
+
+		for _, o := range objects {
+			if !o.IsDir() {
+				continue
+			}
+
+			dirName := o.Name()
+
+			log.Printf("Rendering templates for %s.\n", dirName)
+			if err := render(cfg, o.Name()); err != nil {
+				return fmt.Errorf("unable to render templates for %s; %w", dirName, err)
+			}
+		}
+	} else {
+		if name != "compose" {
+			mg.Deps(
+				mg.F(Render, "compose"),
+			)
+		}
+
+		if err := render(cfg, name); err != nil {
+			return fmt.Errorf("an error occurred whilst rendering the templates; %w", err)
+		}
+	}
+
+	return nil
+}
+
 func render(cfg config, component string) error {
 	buildDirName := filepath.Join(rootBuildDir, component)
 	if err := os.MkdirAll(buildDirName, 0o750); err != nil {