(maint) cleaning build up with move to harness

main.go

@@ -0,0 +1,117 @@
+// Copyright (c) 2020, the Drone Plugins project authors.
+// Please see the AUTHORS file for details. All rights reserved.
+// Use of this source code is governed by an Apache 2.0 license that can be
+// found in the LICENSE file.
+
+// DO NOT MODIFY THIS FILE DIRECTLY
+
+package main
+
+import (
+	"os"
+
+	"github.com/drone-plugins/drone-download/plugin"
+	"github.com/drone-plugins/drone-plugin-lib/errors"
+	"github.com/drone-plugins/drone-plugin-lib/urfave"
+	"github.com/joho/godotenv"
+	"github.com/urfave/cli/v2"
+)
+
+var version = "unknown"
+
+func main() {
+	settings := &plugin.Settings{}
+
+	if _, err := os.Stat("/run/drone/env"); err == nil {
+		_ = godotenv.Overload("/run/drone/env")
+	}
+
+	app := &cli.App{
+		Name:    "drone-download",
+		Usage:   "download a file",
+		Version: version,
+		Flags:   append(settingsFlags(settings), urfave.Flags()...),
+		Action:  run(settings),
+	}
+
+	if err := app.Run(os.Args); err != nil {
+		errors.HandleExit(err)
+	}
+}
+
+func run(settings *plugin.Settings) cli.ActionFunc {
+	return func(ctx *cli.Context) error {
+		urfave.LoggingFromContext(ctx)
+
+		plugin := plugin.New(
+			*settings,
+			urfave.PipelineFromContext(ctx),
+			urfave.NetworkFromContext(ctx),
+		)
+
+		if err := plugin.Validate(); err != nil {
+			if e, ok := err.(errors.ExitCoder); ok {
+				return e
+			}
+
+			return errors.ExitMessagef("validation failed: %w", err)
+		}
+
+		if err := plugin.Execute(); err != nil {
+			if e, ok := err.(errors.ExitCoder); ok {
+				return e
+			}
+
+			return errors.ExitMessagef("execution failed: %w", err)
+		}
+
+		return nil
+	}
+}
+
+func settingsFlags(settings *plugin.Settings) []cli.Flag {
+	return []cli.Flag{
+		&cli.StringFlag{
+			Name:        "source",
+			Usage:       "source url for the download",
+			EnvVars:     []string{"PLUGIN_SOURCE"},
+			Destination: &settings.Source,
+		},
+		&cli.StringFlag{
+			Name:        "destination",
+			Usage:       "destination for the download",
+			EnvVars:     []string{"PLUGIN_DESTINATION"},
+			Destination: &settings.Destination,
+		},
+		&cli.StringFlag{
+			Name:        "authorization",
+			Usage:       "value to send in the authorization header",
+			EnvVars:     []string{"PLUGIN_AUTHORIZATION", "DOWNLOAD_AUTHORIZATION"},
+			Destination: &settings.Authorization,
+		},
+		&cli.StringFlag{
+			Name:        "username",
+			Usage:       "username for basic auth",
+			EnvVars:     []string{"PLUGIN_USERNAME", "DOWNLOAD_USERNAME"},
+			Destination: &settings.Username,
+		},
+		&cli.StringFlag{
+			Name:        "password",
+			Usage:       "password for basic auth",
+			EnvVars:     []string{"PLUGIN_PASSWORD", "DOWNLOAD_PASSWORD"},
+			Destination: &settings.Password,
+		},
+		&cli.StringFlag{
+			Name:        "md5-checksum",
+			Usage:       "checksum in md5 format",
+			EnvVars:     []string{"PLUGIN_MD5"},
+			Destination: &settings.MD5,
+		},
+		&cli.StringFlag{
+			Name:        "sha256-checksum",
+			Usage:       "checksum in sha256 format",
+			EnvVars:     []string{"PLUGIN_SHA256", "PLUGIN_SHA265"},
+			Destination: &settings.SHA256,
+		},
+	}
+}