error reporting
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parent
ef777d9e86
commit
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1
BUILD
1
BUILD
@ -8,6 +8,7 @@ go_library(
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deps = [
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deps = [
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"//src/undocker/rootfs:go_default_library",
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"//src/undocker/rootfs:go_default_library",
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"@com_github_jessevdk_go_flags//:go_default_library",
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"@com_github_jessevdk_go_flags//:go_default_library",
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"@org_uber_go_multierr//:go_default_library",
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],
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],
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)
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)
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12
main.go
12
main.go
@ -6,6 +6,7 @@ import (
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goflags "github.com/jessevdk/go-flags"
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goflags "github.com/jessevdk/go-flags"
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"github.com/motiejus/code/undocker/rootfs"
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"github.com/motiejus/code/undocker/rootfs"
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"go.uber.org/multierr"
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)
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)
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type (
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type (
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@ -40,7 +41,7 @@ type cmdRootFS struct {
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} `positional-args:"yes" required:"yes"`
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} `positional-args:"yes" required:"yes"`
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}
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}
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func (r *cmdRootFS) Execute(args []string) error {
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func (r *cmdRootFS) Execute(args []string) (err error) {
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if len(args) != 0 {
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if len(args) != 0 {
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return errors.New("too many args")
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return errors.New("too many args")
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}
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}
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@ -49,12 +50,17 @@ func (r *cmdRootFS) Execute(args []string) error {
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if err != nil {
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if err != nil {
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return err
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return err
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}
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}
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defer in.Close()
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defer func() {
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err = multierr.Append(err, in.Close())
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}()
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out, err := os.Create(string(r.PositionalArgs.Outfile))
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out, err := os.Create(string(r.PositionalArgs.Outfile))
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if err != nil {
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if err != nil {
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return err
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return err
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}
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}
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defer out.Close()
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defer func() {
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err = multierr.Append(err, out.Close())
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}()
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return rootfs.RootFS(in, out)
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return rootfs.RootFS(in, out)
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}
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}
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