Initial v1.0.0 commit

vendor/github.com/gobuffalo/packr/v2/jam/pack.go

@@ -0,0 +1,113 @@
+package jam
+
+import (
+	"context"
+	"encoding/json"
+	"io"
+	"os"
+	"os/exec"
+	"time"
+
+	"github.com/gobuffalo/packr/v2/jam/parser"
+	"github.com/gobuffalo/packr/v2/jam/store"
+	"github.com/gobuffalo/packr/v2/plog"
+)
+
+// PackOptions ...
+type PackOptions struct {
+	IgnoreImports bool
+	Legacy        bool
+	StoreCmd      string
+	Roots         []string
+	RootsOptions  *parser.RootsOptions
+}
+
+// Pack the roots given + PWD
+func Pack(opts PackOptions) error {
+	pwd, err := os.Getwd()
+	if err != nil {
+		return err
+	}
+
+	opts.Roots = append(opts.Roots, pwd)
+	if err := Clean(opts.Roots...); err != nil {
+		return err
+	}
+
+	if opts.RootsOptions == nil {
+		opts.RootsOptions = &parser.RootsOptions{}
+	}
+
+	if opts.IgnoreImports {
+		opts.RootsOptions.IgnoreImports = true
+	}
+
+	p, err := parser.NewFromRoots(opts.Roots, opts.RootsOptions)
+	if err != nil {
+		return err
+	}
+	boxes, err := p.Run()
+	if err != nil {
+		return err
+	}
+
+	// reduce boxes - remove ones we don't want
+	// MB: current assumption is we want all these
+	// boxes, just adding a comment suggesting they're
+	// might be a reason to exclude some
+
+	plog.Logger.Debugf("found %d boxes", len(boxes))
+
+	if len(opts.StoreCmd) != 0 {
+		return ShellPack(opts, boxes)
+	}
+
+	var st store.Store = store.NewDisk("", "")
+
+	if opts.Legacy {
+		st = store.NewLegacy()
+	}
+
+	for _, b := range boxes {
+		if b.Name == store.DISK_GLOBAL_KEY {
+			continue
+		}
+		if err := st.Pack(b); err != nil {
+			return err
+		}
+	}
+	if cl, ok := st.(io.Closer); ok {
+		return cl.Close()
+	}
+	return nil
+}
+
+// ShellPack ...
+func ShellPack(opts PackOptions, boxes parser.Boxes) error {
+	b, err := json.Marshal(boxes)
+	if err != nil {
+		return err
+	}
+	ctx, cancel := context.WithTimeout(context.Background(), 60*time.Second)
+	defer cancel()
+	c := exec.CommandContext(ctx, opts.StoreCmd, string(b))
+	c.Stdout = os.Stdout
+	c.Stderr = os.Stderr
+	return c.Run()
+
+}
+
+// Clean ...
+func Clean(args ...string) error {
+	pwd, err := os.Getwd()
+	if err != nil {
+		return err
+	}
+	args = append(args, pwd)
+	for _, root := range args {
+		if err := store.Clean(root); err != nil {
+			return err
+		}
+	}
+	return nil
+}