Upgrade to 0.12

1 files changed, 172 insertions, 0 deletions

diff --git a/vendor/github.com/hashicorp/go-getter/get_gcs.go b/vendor/github.com/hashicorp/go-getter/get_gcs.go
new file mode 100644
index 0000000..6faa70f
--- /dev/null
+++ b/vendor/github.com/hashicorp/go-getter/get_gcs.go
@@ -0,0 +1,172 @@
+package getter
+
+import (
+        "context"
+        "fmt"
+        "net/url"
+        "os"
+        "path/filepath"
+        "strings"
+
+        "cloud.google.com/go/storage"
+        "google.golang.org/api/iterator"
+)
+
+// GCSGetter is a Getter implementation that will download a module from
+// a GCS bucket.
+type GCSGetter struct {
+        getter
+}
+
+func (g *GCSGetter) ClientMode(u *url.URL) (ClientMode, error) {
+        ctx := g.Context()
+
+        // Parse URL
+        bucket, object, err := g.parseURL(u)
+        if err != nil {
+                return 0, err
+        }
+
+        client, err := storage.NewClient(ctx)
+        if err != nil {
+                return 0, err
+        }
+        iter := client.Bucket(bucket).Objects(ctx, &storage.Query{Prefix: object})
+        for {
+                obj, err := iter.Next()
+                if err != nil && err != iterator.Done {
+                        return 0, err
+                }
+
+                if err == iterator.Done {
+                        break
+                }
+                if strings.HasSuffix(obj.Name, "/") {
+                        // A directory matched the prefix search, so this must be a directory
+                        return ClientModeDir, nil
+                } else if obj.Name != object {
+                        // A file matched the prefix search and doesn't have the same name
+                        // as the query, so this must be a directory
+                        return ClientModeDir, nil
+                }
+        }
+        // There are no directories or subdirectories, and if a match was returned,
+        // it was exactly equal to the prefix search. So return File mode
+        return ClientModeFile, nil
+}
+
+func (g *GCSGetter) Get(dst string, u *url.URL) error {
+        ctx := g.Context()
+
+        // Parse URL
+        bucket, object, err := g.parseURL(u)
+        if err != nil {
+                return err
+        }
+
+        // Remove destination if it already exists
+        _, err = os.Stat(dst)
+        if err != nil && !os.IsNotExist(err) {
+                return err
+        }
+        if err == nil {
+                // Remove the destination
+                if err := os.RemoveAll(dst); err != nil {
+                        return err
+                }
+        }
+
+        // Create all the parent directories
+        if err := os.MkdirAll(filepath.Dir(dst), 0755); err != nil {
+                return err
+        }
+
+        client, err := storage.NewClient(ctx)
+        if err != nil {
+                return err
+        }
+
+        // Iterate through all matching objects.
+        iter := client.Bucket(bucket).Objects(ctx, &storage.Query{Prefix: object})
+        for {
+                obj, err := iter.Next()
+                if err != nil && err != iterator.Done {
+                        return err
+                }
+                if err == iterator.Done {
+                        break
+                }
+
+                if !strings.HasSuffix(obj.Name, "/") {
+                        // Get the object destination path
+                        objDst, err := filepath.Rel(object, obj.Name)
+                        if err != nil {
+                                return err
+                        }
+                        objDst = filepath.Join(dst, objDst)
+                        // Download the matching object.
+                        err = g.getObject(ctx, client, objDst, bucket, obj.Name)
+                        if err != nil {
+                                return err
+                        }
+                }
+        }
+        return nil
+}
+
+func (g *GCSGetter) GetFile(dst string, u *url.URL) error {
+        ctx := g.Context()
+
+        // Parse URL
+        bucket, object, err := g.parseURL(u)
+        if err != nil {
+                return err
+        }
+
+        client, err := storage.NewClient(ctx)
+        if err != nil {
+                return err
+        }
+        return g.getObject(ctx, client, dst, bucket, object)
+}
+
+func (g *GCSGetter) getObject(ctx context.Context, client *storage.Client, dst, bucket, object string) error {
+        rc, err := client.Bucket(bucket).Object(object).NewReader(ctx)
+        if err != nil {
+                return err
+        }
+        defer rc.Close()
+
+        // Create all the parent directories
+        if err := os.MkdirAll(filepath.Dir(dst), 0755); err != nil {
+                return err
+        }
+
+        f, err := os.Create(dst)
+        if err != nil {
+                return err
+        }
+        defer f.Close()
+
+        _, err = Copy(ctx, f, rc)
+        return err
+}
+
+func (g *GCSGetter) parseURL(u *url.URL) (bucket, path string, err error) {
+        if strings.Contains(u.Host, "googleapis.com") {
+                hostParts := strings.Split(u.Host, ".")
+                if len(hostParts) != 3 {
+                        err = fmt.Errorf("URL is not a valid GCS URL")
+                        return
+                }
+
+                pathParts := strings.SplitN(u.Path, "/", 5)
+                if len(pathParts) != 5 {
+                        err = fmt.Errorf("URL is not a valid GCS URL")
+                        return
+                }
+                bucket = pathParts[3]
+                path = pathParts[4]
+        }
+        return
+}