refactor: moved plugin files

pkg/plugins/jinja2/jinja2.go

@@ -0,0 +1,98 @@
+package main
+
+import (
+	"bytes"
+	"encoding/json"
+	"fmt"
+
+	configurator "git.towk2.me/towk/makeshift/pkg"
+	"git.towk2.me/towk/makeshift/pkg/storage"
+	"github.com/nikolalohinski/gonja/v2"
+	"github.com/nikolalohinski/gonja/v2/exec"
+	"github.com/rs/zerolog/log"
+)
+
+type Jinja2 struct{}
+
+func (p *Jinja2) Name() string        { return "jinja2" }
+func (p *Jinja2) Version() string     { return "v0.0.1-alpha" }
+func (p *Jinja2) Description() string { return "Renders Jinja 2 templates" }
+func (p *Jinja2) Metadata() configurator.Metadata {
+	return configurator.Metadata{
+		"author.name":  "David J. Allen",
+		"author.email": "davidallendj@gmail.com",
+		"author.links": []string{
+			"https://github.com/davidallendj",
+			"https://git.towk2.me/towk",
+		},
+	}
+}
+
+func (p *Jinja2) Init() error {
+	// nothing to initialize
+	log.Debug().Str("plugin", p.Name()).Msg("jinja2.Init()")
+	return nil
+}
+
+func (p *Jinja2) Run(data storage.KVStore, args []string) error {
+	// render the files using Jinja 2 from args
+	var (
+		rendered []string
+		context  *exec.Context
+		template *exec.Template
+		mappings map[string]any
+		input    any // must be a byte array
+		output   bytes.Buffer
+		err      error
+	)
+	log.Debug().
+		Str("plugin", p.Name()).
+		Any("data", data).
+		// Bytes("input", input.([]byte)).
+		Int("arg_count", len(args)).
+		Msg("Run()")
+
+	input, err = data.Get("file")
+	if err != nil {
+		return fmt.Errorf("(jinja2) failed to get input data: %v", err)
+	}
+
+	// get the templates provided as args to the plugin
+	template, err = gonja.FromBytes(input.([]byte))
+	if err != nil {
+		return fmt.Errorf("(jinja2) failed to get template from args: %v", err)
+	}
+
+	// get mappings from shared data
+	shared, err := data.Get("shared")
+	if err != nil {
+		return fmt.Errorf("(jinja2) failed to get data from store: %v", err)
+	}
+
+	err = json.Unmarshal(shared.([]byte), &mappings)
+	if err != nil {
+		return fmt.Errorf("(jinja2) failed to unmarshal mappings from shared data: %v", err)
+	}
+
+	data.Set("mappings", mappings)
+
+	// use the provided data in the store to render templates
+	// NOTE: this may be changed to specifically use "shared" data instead
+	context = exec.NewContext(data.GetData().(map[string]any))
+	if err = template.Execute(&output, context); err != nil { // Prints: Hello Bob!
+		return fmt.Errorf("(jinja2) failed to render template: %v", err)
+	}
+	rendered = append(rendered, output.String())
+
+	// write render templates to data store output
+	data.Set("out", rendered)
+	return nil
+}
+
+func (p *Jinja2) Cleanup() error {
+	// nothing to clean up
+	log.Debug().Str("plugin", p.Name()).Msg("jinja2.Cleanup()")
+	return nil
+}
+
+var Makeshift Jinja2