[pbs-devel] [PATCH v2 proxmox-backup] fix #6185: client/docs: explicitly mention archive name restrictions

[Shannon Sterz]

On Thu Feb 20, 2025 at 4:56 PM CET, Christian Ebner wrote:
> Mention in the docs and the api parameter description the limitations
> for archive name labels. They must contain alphanumerics, hyphens and
> underscores only to match the regex pattern.
>
> By setting this in the api parameter description, it will be included
> in the man page for proxmox-backup-client.
>
> Fixes: https://bugzilla.proxmox.com/show_bug.cgi?id=6185
> Signed-off-by: Christian Ebner <c.ebner at proxmox.com>
> ---
> changes since version 1:
> - Avoid newline in output by formatting multi-line string with backslash.
>
>  docs/backup-client.rst                 |  1 +
>  pbs-client/src/backup_specification.rs | 10 ++++++----
>  proxmox-backup-client/src/main.rs      |  3 ++-
>  3 files changed, 9 insertions(+), 5 deletions(-)
>
> diff --git a/docs/backup-client.rst b/docs/backup-client.rst
> index 1c2a98ed8..e11c0142a 100644
> --- a/docs/backup-client.rst
> +++ b/docs/backup-client.rst
> @@ -169,6 +169,7 @@ the client. The format is:
>
>      <archive-name>.<type>:<source-path>
>
> +The ``archive-name`` must contain alphanumerics, hyphens and underscores only.
>  Common types are ``.pxar`` for file archives and ``.img`` for block
>  device images. To create a backup of a block device, run the following command:
>
> diff --git a/pbs-client/src/backup_specification.rs b/pbs-client/src/backup_specification.rs
> index b6fbc555c..e44d23d90 100644
> --- a/pbs-client/src/backup_specification.rs
> +++ b/pbs-client/src/backup_specification.rs
> @@ -7,10 +7,12 @@ const_regex! {
>      BACKUPSPEC_REGEX = r"^([a-zA-Z0-9_-]+\.(pxar|img|conf|log)):(.+)$";
>  }
>
> -pub const BACKUP_SOURCE_SCHEMA: Schema =
> -    StringSchema::new("Backup source specification ([<label>:<path>]).")
> -        .format(&ApiStringFormat::Pattern(&BACKUPSPEC_REGEX))
> -        .schema();
> +pub const BACKUP_SOURCE_SCHEMA: Schema = StringSchema::new(
> +    "Backup source specification ([<label>:<path>]), the specification \
> +    'label' must contain alphanumerics, hyphens and underscores only.",

this description doesn't mention the extensions though and makes it
sound like they should be included, even though the regex requires it.
might make sense to indicate that like below here too?

> +)
> +.format(&ApiStringFormat::Pattern(&BACKUPSPEC_REGEX))
> +.schema();
>
>  pub enum BackupSpecificationType {
>      PXAR,
> diff --git a/proxmox-backup-client/src/main.rs b/proxmox-backup-client/src/main.rs
> index 589a097bb..9077f7bdf 100644
> --- a/proxmox-backup-client/src/main.rs
> +++ b/proxmox-backup-client/src/main.rs
> @@ -628,7 +628,8 @@ fn spawn_catalog_upload(
>         properties: {
>             backupspec: {
>                 type: Array,
> -               description: "List of backup source specifications ([<label.ext>:<path>] ...)",
> +               description: "List of backup source specifications ([<label.ext>:<path>] ...), the \
> +                    specifications 'label' must contain alphanumerics, hyphens and underscores only.",
>                 items: {
>                     schema: BACKUP_SOURCE_SCHEMA,
>                 }