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backup: Improve help text for --stdin-from-command

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Michael Eischer committed 2024-01-21 22:06:54 +01:00
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commit 767c2539a0
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changelog/unreleased/issue-4251
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@@ -3,10 +3,11 @@ Enhancement: Support reading backup from a program's standard output
When reading data from stdin, the `backup` command could not verify whether the
corresponding command completed successfully.
The `backup` command now supports starting an arbitrary command and sourcing
the backup content from its standard output. This enables restic to verify that
the command completes with exit code zero. A non-zero exit code causes the
backup to fail.
The `backup` command now supports the `--stdin-from-command` option. When using
this option, the arguments to `backup` are interpreted as a command. `backup`
then executes the command and stores its standard output in the backup. This
enables restic to verify that the command completes with exit code zero. A
non-zero exit code causes the backup to fail.
Example: `restic backup --stdin-from-command mysqldump [...]`