[pbs-devel] [PATCH proxmox{, -widget-toolkit, -backup} 0/4] notifications: add support for nested matchers

[Lukas Wagner <l.wagner@proxmox.com>]

This series adds support for nested notification matchers. A new match rule is
added, 'eval-matcher', which allows to evaluate other matchers and use their
result in the current matcher.

Any matcher that shall be used as a nested matcher must have the (new) `nested`
flag set to true. These matchers are only evaluated if they are referenced
by another matcher. Any target configured for a nested matcher is ignored,
only the 'top-level'/'outermost' matcher decides which targets to notify.

This patch series includes:
  - patches for proxmox-notify, which add the new config entries for matchers,
    API methods and nested matcher evaluation
  - patches for proxmox-backup, which contain documentation for the new
    feature
  - patches for proxmox-widget-toolkit, containing the GUI changes needed
    for this feature.

Small config example:

matcher: top-level
  target mail-to-root
  mode any
  eval-matcher a
  eval-matcher b

matcher: a
  nested true
  mode all
  match-field exact:datastore=store
  match-field exact:type=gc
  match-severity error

matcher: b
  nested true
  mode all
  match-field exact:datastore=store
  match-field exact:type=prune
  match-severity error

The GUI remains functional if changes of proxmox-widget-toolkit are rolled out
before the proxmox-notify/proxmox-backup ones, so we should get away without
any sort of versioned break between widget-toolkit and proxmox-backup. Matchers
can be added/modified/deleted without problems, only if one tries to add a
nested-matcher rule or declare a matcher as a nested matcher an error is
displayed. Everything else should work.

Patches for PVE will follow once the core elements for this series have been
reviewed.

Note:
  The patches for proxmox-notify are based on the `stable-bookworm` branch.

## Patch series revisions:
v1: you are here

proxmox:

Lukas Wagner (2):
  notify: matcher: allow to evaluate other matchers via `eval-matcher`
  notify: matcher: API: update methods for nested matcher support

 proxmox-notify/src/api/matcher.rs | 229 +++++++++++++++++++++-
 proxmox-notify/src/api/mod.rs     |   4 +
 proxmox-notify/src/lib.rs         |  20 +-
 proxmox-notify/src/matcher.rs     | 313 ++++++++++++++++++++++++++++--
 4 files changed, 532 insertions(+), 34 deletions(-)


proxmox-widget-toolkit:

Lukas Wagner (1):
  notifications: matchers: add nested matcher support

 src/data/model/NotificationConfig.js  |   8 +-
 src/panel/NotificationConfigView.js   |   6 +
 src/window/NotificationMatcherEdit.js | 220 +++++++++++++++++++++++++-
 3 files changed, 232 insertions(+), 2 deletions(-)


proxmox-backup:

Lukas Wagner (1):
  docs: notifications: add section about nested matchers

 docs/notifications.rst | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)


Summary over all repositories:
  8 files changed, 787 insertions(+), 36 deletions(-)

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