3 Commits

Author	SHA1	Message	Date
Brad Fitzpatrick	cfda1ff709	cmd/viewer,all: consistently use "read-only" instead of "readonly" ... Updates #cleanup Change-Id: I8e4e3497d3d0ec5b16a73aedda500fe5cfa37a67 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2025-01-14 08:26:56 -08:00
Nick Khyl	da9965d51c	cmd/viewer,types/views,various: avoid allocations in pointer field getters whenever possible ... In this PR, we add a generic views.ValuePointer type that can be used as a view for pointers to basic types and struct types that do not require deep cloning and do not have corresponding view types. Its Get/GetOk methods return stack-allocated shallow copies of the underlying value. We then update the cmd/viewer codegen to produce getters that return either concrete views when available or ValuePointer views when not, for pointer fields in generated view types. This allows us to avoid unnecessary allocations compared to returning pointers to newly allocated shallow copies. Updates #14570 Signed-off-by: Nick Khyl <nickk@tailscale.com>	2025-01-14 09:37:10 -06:00
Nick Khyl	af3d3c433b	types/prefs: add a package containing generic preference types ... This adds a new package containing generic types to be used for defining preference hierarchies. These include prefs.Item, prefs.List, prefs.StructList, and prefs.StructMap. Each of these types represents a configurable preference, holding the preference's state, value, and metadata. The metadata includes the default value (if it differs from the zero value of the Go type) and flags indicating whether a preference is managed via syspolicy or is hidden/read-only for another reason. This information can be marshaled and sent to the GUI, CLI and web clients as a source of truth regarding preference configuration, management, and visibility/mutability states. We plan to use these types to define device preferences, such as the updater preferences, the permission mode to be used on Windows with #tailscale/corp#18342, and certain global options that are currently exposed as tailscaled flags. We also aim to eventually use these types for profile-local preferences in ipn.Prefs and and as a replacement for ipn.MaskedPrefs. The generic preference types are compatible with the tailscale.com/cmd/viewer and tailscale.com/cmd/cloner utilities. Updates #12736 Signed-off-by: Nick Khyl <nickk@tailscale.com>	2024-08-21 12:44:38 -05:00