/
export.go
132 lines (118 loc) · 2.49 KB
/
export.go
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package db
import (
"fmt"
"io"
"os"
"github.com/golang/protobuf/jsonpb"
"github.com/octavore/naga/service"
"github.com/ketchuphq/ketchup/proto/ketchup/models/export"
)
var marshaler = &jsonpb.Marshaler{
EnumsAsInts: false,
Indent: " ",
}
func (m *Module) registerExportCommand(c *service.Config) {
c.AddCommand(&service.Command{
Keyword: "db:export <output file>",
ShortUsage: "export pages and routes to file (as json)",
Run: func(ctx *service.CommandContext) {
var path string
if len(ctx.Args) > 0 {
path = ctx.Args[0]
}
err := m.ExportToJSON(path)
if err != nil {
panic(err)
}
},
})
}
func (m *Module) registerImportCommand(c *service.Config) {
c.AddCommand(&service.Command{
Keyword: "db:import <input file>",
ShortUsage: "import pages and routes from file",
Run: func(ctx *service.CommandContext) {
ctx.RequireExactlyNArgs(1)
err := m.importFromJSON(ctx.Args[0])
if err != nil {
panic(err)
}
},
})
}
func (m *Module) ExportToJSON(path string) error {
var wr io.WriteCloser = os.Stdout
if path != "" {
_, err := os.Stat(path)
if err == nil {
return fmt.Errorf("file already eists")
}
if !os.IsNotExist(err) {
return err
}
f, err := os.OpenFile(path, os.O_CREATE|os.O_RDWR|os.O_TRUNC, 0666)
if err != nil {
return err
}
wr = f
}
defer wr.Close()
e, err := m.Export()
if err != nil {
return err
}
err = marshaler.Marshal(wr, e)
if err != nil {
return err
}
return nil
}
func (m *Module) importFromJSON(path string) error {
f, err := os.Open(path)
if err != nil {
return err
}
e := &export.Export{}
err = jsonpb.Unmarshal(f, e)
if err != nil {
return err
}
return m.Import(e)
}
// Export generates a dump of routes and routes
func (m *Module) Export() (*export.Export, error) {
export := &export.Export{}
pages, err := m.ListPages(nil)
if err != nil {
return nil, err
}
for _, page := range pages {
page, err := m.GetPage(page.GetUuid())
if err != nil {
return nil, err
}
export.Pages = append(export.Pages, page)
}
routes, err := m.ListRoutes(nil)
if err != nil {
return nil, err
}
export.Routes = routes
return export, nil
}
// Import pages and routes from an Export object.
func (m *Module) Import(export *export.Export) error {
for _, page := range export.GetPages() {
err := m.UpdatePage(page)
if err != nil {
return err
}
}
for _, route := range export.GetRoutes() {
err := m.UpdateRoute(route)
if err != nil {
return err
}
}
return nil
}