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backup/restore: fix termstatus initialization

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The termstatus must only be canceled once the command has returned.
Otherwise output may be lost when the context gets canceled.
This commit is contained in:
Michael Eischer 2024-01-20 18:12:36 +01:00
parent d26d2d41f8
commit 6b65a495b1
3 changed files with 6 additions and 5 deletions
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2
cmd/restic/cmd_backup.go
View file

@ -54,7 +54,7 @@ Exit status is 3 if some source data could not be read (incomplete snapshot crea
},
DisableAutoGenTag: true,
RunE: func(cmd *cobra.Command, args []string) error {
term, cancel := setupTermstatus(cmd.Context())
term, cancel := setupTermstatus()
defer cancel()
return runBackup(cmd.Context(), backupOptions, globalOptions, term, args)
},

2
cmd/restic/cmd_restore.go
View file

@ -37,7 +37,7 @@ Exit status is 0 if the command was successful, and non-zero if there was any er
`,
DisableAutoGenTag: true,
RunE: func(cmd *cobra.Command, args []string) error {
term, cancel := setupTermstatus(cmd.Context())
term, cancel := setupTermstatus()
defer cancel()
return runRestore(cmd.Context(), restoreOptions, globalOptions, term, args)
},

7
cmd/restic/termstatus.go
View file

@ -13,13 +13,14 @@ import (
//
// Expected usage:
// ```
// term, cancel := setupTermstatus(ctx)
// term, cancel := setupTermstatus()
// defer cancel()
// // do stuff
// ```
func setupTermstatus(ctx context.Context) (*termstatus.Terminal, func()) {
func setupTermstatus() (*termstatus.Terminal, func()) {
var wg sync.WaitGroup
cancelCtx, cancel := context.WithCancel(ctx)
// only shutdown once cancel is called to ensure that no output is lost
cancelCtx, cancel := context.WithCancel(context.Background())
term := termstatus.New(globalOptions.stdout, globalOptions.stderr, globalOptions.Quiet)
wg.Add(1)