provider/archive: Implementing archive provider

builtin/bins/provider-archive/main.go

@@ -0,0 +1,12 @@
+package main
+
+import (
+	"github.com/hashicorp/terraform/builtin/providers/archive"
+	"github.com/hashicorp/terraform/plugin"
+)
+
+func main() {
+	plugin.Serve(&plugin.ServeOpts{
+		ProviderFunc: archive.Provider,
+	})
+}

builtin/providers/archive/archiver.go

@@ -0,0 +1,47 @@
+package archive
+
+import (
+	"fmt"
+	"os"
+)
+
+type Archiver interface {
+	ArchiveContent(content []byte, infilename string) error
+	ArchiveFile(infilename string) error
+	ArchiveDir(indirname string) error
+}
+
+type ArchiverBuilder func(filepath string) Archiver
+
+var archiverBuilders = map[string]ArchiverBuilder{
+	"zip": NewZipArchiver,
+}
+
+func getArchiver(archiveType string, filepath string) Archiver {
+	if builder, ok := archiverBuilders[archiveType]; ok {
+		return builder(filepath)
+	}
+	return nil
+}
+
+func assertValidFile(infilename string) (os.FileInfo, error) {
+	fi, err := os.Stat(infilename)
+	if err != nil && os.IsNotExist(err) {
+		return fi, fmt.Errorf("could not archive missing file: %s", infilename)
+	}
+	return fi, err
+}
+
+func assertValidDir(indirname string) (os.FileInfo, error) {
+	fi, err := os.Stat(indirname)
+	if err != nil {
+		if os.IsNotExist(err) {
+			return fi, fmt.Errorf("could not archive missing directory: %s", indirname)
+		}
+		return fi, err
+	}
+	if !fi.IsDir() {
+		return fi, fmt.Errorf("could not archive directory that is a file: %s", indirname)
+	}
+	return fi, nil
+}

builtin/providers/archive/provider.go

@@ -0,0 +1,16 @@
+package archive
+
+import (
+	"github.com/hashicorp/terraform/helper/schema"
+	"github.com/hashicorp/terraform/terraform"
+)
+
+func Provider() terraform.ResourceProvider {
+	return &schema.Provider{
+		Schema: map[string]*schema.Schema{},
+
+		ResourcesMap: map[string]*schema.Resource{
+			"archive_file": resourceArchiveFile(),
+		},
+	}
+}

builtin/providers/archive/provider_test.go

@@ -0,0 +1,18 @@
+package archive
+
+import (
+	"testing"
+
+	"github.com/hashicorp/terraform/helper/schema"
+	"github.com/hashicorp/terraform/terraform"
+)
+
+var testProviders = map[string]terraform.ResourceProvider{
+	"archive": Provider(),
+}
+
+func TestProvider(t *testing.T) {
+	if err := Provider().(*schema.Provider).InternalValidate(); err != nil {
+		t.Fatalf("err: %s", err)
+	}
+}

builtin/providers/archive/resource_archive_file.go

@@ -0,0 +1,174 @@
+package archive
+
+import (
+	"crypto/sha1"
+	"encoding/hex"
+	"fmt"
+	"github.com/hashicorp/terraform/helper/schema"
+	"io/ioutil"
+	"os"
+)
+
+func resourceArchiveFile() *schema.Resource {
+	return &schema.Resource{
+		Create: resourceArchiveFileCreate,
+		Read:   resourceArchiveFileRead,
+		Update: resourceArchiveFileUpdate,
+		Delete: resourceArchiveFileDelete,
+		Exists: resourceArchiveFileExists,
+
+		Schema: map[string]*schema.Schema{
+			"type": &schema.Schema{
+				Type:     schema.TypeString,
+				Required: true,
+				ForceNew: true,
+			},
+			"source_content": &schema.Schema{
+				Type:          schema.TypeString,
+				Optional:      true,
+				ForceNew:      true,
+				ConflictsWith: []string{"source_file", "source_dir"},
+			},
+			"source_content_filename": &schema.Schema{
+				Type:          schema.TypeString,
+				Optional:      true,
+				ForceNew:      true,
+				ConflictsWith: []string{"source_file", "source_dir"},
+			},
+			"source_file": &schema.Schema{
+				Type:          schema.TypeString,
+				Optional:      true,
+				ForceNew:      true,
+				ConflictsWith: []string{"source_content", "source_content_filename", "source_dir"},
+			},
+			"source_dir": &schema.Schema{
+				Type:          schema.TypeString,
+				Optional:      true,
+				ForceNew:      true,
+				ConflictsWith: []string{"source_content", "source_content_filename", "source_file"},
+			},
+			"output_path": &schema.Schema{
+				Type:     schema.TypeString,
+				Required: true,
+			},
+			"output_size": &schema.Schema{
+				Type:     schema.TypeInt,
+				Computed: true,
+				ForceNew: true,
+			},
+			"output_sha": &schema.Schema{
+				Type:        schema.TypeString,
+				Computed:    true,
+				ForceNew:    true,
+				Description: "SHA1 checksum of output file",
+			},
+		},
+	}
+}
+
+func resourceArchiveFileCreate(d *schema.ResourceData, meta interface{}) error {
+	if err := resourceArchiveFileUpdate(d, meta); err != nil {
+		return err
+	}
+	return resourceArchiveFileRead(d, meta)
+}
+
+func resourceArchiveFileRead(d *schema.ResourceData, meta interface{}) error {
+	output_path := d.Get("output_path").(string)
+	fi, err := os.Stat(output_path)
+	if os.IsNotExist(err) {
+		d.SetId("")
+		d.MarkNewResource()
+		return nil
+	}
+
+	sha, err := genFileSha1(fi.Name())
+	if err != nil {
+		return fmt.Errorf("could not generate file checksum sha: %s", err)
+	}
+	d.Set("output_sha", sha)
+	d.Set("output_size", fi.Size())
+	d.SetId(d.Get("output_sha").(string))
+
+	return nil
+}
+
+func resourceArchiveFileUpdate(d *schema.ResourceData, meta interface{}) error {
+	archiveType := d.Get("type").(string)
+	outputPath := d.Get("output_path").(string)
+
+	archiver := getArchiver(archiveType, outputPath)
+	if archiver == nil {
+		return fmt.Errorf("archive type not supported: %s", archiveType)
+	}
+
+	if dir, ok := d.GetOk("source_dir"); ok {
+		if err := archiver.ArchiveDir(dir.(string)); err != nil {
+			return fmt.Errorf("error archiving directory: %s", err)
+		}
+	} else if file, ok := d.GetOk("source_file"); ok {
+		if err := archiver.ArchiveFile(file.(string)); err != nil {
+			return fmt.Errorf("error archiving file: %s", err)
+		}
+	} else if filename, ok := d.GetOk("source_content_filename"); ok {
+		content := d.Get("source_content").(string)
+		if err := archiver.ArchiveContent([]byte(content), filename.(string)); err != nil {
+			return fmt.Errorf("error archiving content: %s", err)
+		}
+	} else {
+		return fmt.Errorf("one of 'source_dir', 'source_file', 'source_content_filename' must be specified")
+	}
+
+	// Generate archived file stats
+	output_path := d.Get("output_path").(string)
+	fi, err := os.Stat(output_path)
+	if err != nil {
+		return err
+	}
+
+	sha, err := genFileSha1(fi.Name())
+	if err != nil {
+		return fmt.Errorf("could not generate file checksum sha: %s", err)
+	}
+	d.Set("output_sha", sha)
+	d.Set("output_size", fi.Size())
+	d.SetId(d.Get("output_sha").(string))
+
+	return nil
+}
+
+func resourceArchiveFileDelete(d *schema.ResourceData, meta interface{}) error {
+	output_path := d.Get("output_path").(string)
+	fi, err := os.Stat(output_path)
+	if os.IsNotExist(err) {
+		return nil
+	}
+
+	if err := os.Remove(fi.Name()); err != nil {
+		return fmt.Errorf("could not delete zip file '%s': %s", fi.Name(), err)
+	}
+
+	return nil
+}
+
+func resourceArchiveFileExists(d *schema.ResourceData, meta interface{}) (bool, error) {
+	output_path := d.Get("output_path").(string)
+	_, err := os.Stat(output_path)
+	if os.IsNotExist(err) {
+		return false, nil
+	}
+	if err != nil {
+		return false, err
+	}
+	return true, nil
+}
+
+func genFileSha1(filename string) (string, error) {
+	data, err := ioutil.ReadFile(filename)
+	if err != nil {
+		return "", fmt.Errorf("could not compute file '%s' checksum: %s", filename, err)
+	}
+	h := sha1.New()
+	h.Write([]byte(data))
+	return hex.EncodeToString(h.Sum(nil)), nil
+}

builtin/providers/archive/resource_archive_file_test.go

@@ -0,0 +1,92 @@
+package archive
+
+import (
+	"fmt"
+	r "github.com/hashicorp/terraform/helper/resource"
+	"github.com/hashicorp/terraform/terraform"
+	"os"
+	"testing"
+)
+
+func TestAccArchiveFile_Basic(t *testing.T) {
+	var fileSize string
+	r.Test(t, r.TestCase{
+		Providers: testProviders,
+		CheckDestroy: r.ComposeTestCheckFunc(
+			testAccArchiveFileMissing("zip_file_acc_test.zip"),
+		),
+		Steps: []r.TestStep{
+			r.TestStep{
+				Config: testAccArchiveFileContentConfig,
+				Check: r.ComposeTestCheckFunc(
+					testAccArchiveFileExists("zip_file_acc_test.zip", &fileSize),
+					r.TestCheckResourceAttrPtr("archive_file.foo", "output_size", &fileSize),
+				),
+			},
+			r.TestStep{
+				Config: testAccArchiveFileFileConfig,
+				Check: r.ComposeTestCheckFunc(
+					testAccArchiveFileExists("zip_file_acc_test.zip", &fileSize),
+					r.TestCheckResourceAttrPtr("archive_file.foo", "output_size", &fileSize),
+				),
+			},
+			r.TestStep{
+				Config: testAccArchiveFileDirConfig,
+				Check: r.ComposeTestCheckFunc(
+					testAccArchiveFileExists("zip_file_acc_test.zip", &fileSize),
+					r.TestCheckResourceAttrPtr("archive_file.foo", "output_size", &fileSize),
+				),
+			},
+		},
+	})
+}
+
+func testAccArchiveFileExists(filename string, fileSize *string) r.TestCheckFunc {
+	return func(s *terraform.State) error {
+		*fileSize = ""
+		fi, err := os.Stat(filename)
+		if err != nil {
+			return err
+		}
+		*fileSize = fmt.Sprintf("%d", fi.Size())
+		return nil
+	}
+}
+
+func testAccArchiveFileMissing(filename string) r.TestCheckFunc {
+	return func(s *terraform.State) error {
+		_, err := os.Stat(filename)
+		if err != nil {
+			if os.IsNotExist(err) {
+				return nil
+			}
+			return err
+		}
+		return fmt.Errorf("found file expected to be deleted: %s", filename)
+	}
+}
+
+var testAccArchiveFileContentConfig = `
+resource "archive_file" "foo" {
+  type                    = "zip"
+  source_content          = "This is some content"
+  source_content_filename = "content.txt"
+  output_path             = "zip_file_acc_test.zip"
+}
+`
+
+var testAccArchiveFileFileConfig = `
+resource "archive_file" "foo" {
+  type        = "zip"
+  source_file = "test-fixtures/test-file.txt"
+  output_path = "zip_file_acc_test.zip"
+}
+`
+
+var testAccArchiveFileDirConfig = `
+resource "archive_file" "foo" {
+  type        = "zip"
+  source_dir  = "test-fixtures/test-dir"
+  output_path = "zip_file_acc_test.zip"
+}
+`

builtin/providers/archive/test-fixtures/test-dir/file1.txt

@@ -0,0 +1 @@
+This is file 1

builtin/providers/archive/test-fixtures/test-dir/file2.txt

@@ -0,0 +1 @@
+This is file 2

builtin/providers/archive/test-fixtures/test-dir/file3.txt

@@ -0,0 +1 @@
+This is file 3

builtin/providers/archive/test-fixtures/test-file.txt

@@ -0,0 +1 @@
+This is test content