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namespacePackage Catalog9 functions

datumhue.packages

Browse the packages the workstation knows about. Reads return whatever the workstation has at the moment of the call and the catalog stays current automatically.

Returns handles
PackageRef, Subscription

Functions 9

datumhue.packages.list

function
datumhue.packages.list(opts?: packages.ListOptions) -> PackageRef[]

Array of PackageRef userdata for every visible catalog entry.

Example
for _, ref in ipairs(datumhue.packages.list({ kind = "app" })) do
    print(ref.name, ref:version())
end

opts packages.ListOptions options 2 keys, 2 inherited

KeyTypeDefaultDescription
From packages.FilterBase
kind"app" | "library" | "asset_pack"every kindRestrict results to one package kind.
namespacestringevery namespaceRestrict to one registry namespace.

In the guide: List and install packages

datumhue.packages.search

function
datumhue.packages.search(opts?: packages.SearchOptions) -> PackageRef[]

Array of PackageRef userdata matching a text / tag filter.

Example
local found = datumhue.packages.search({
    query = "*chess*",
    tags = { "game" },
})
print(#found)

opts packages.SearchOptions options 4 keys, 2 inherited

KeyTypeDefaultDescription
querystringevery entry matchesGlob pattern (* / ?) matched against entry name and description.
tagsstring[]no tag filterTags an entry must all carry to match.
From packages.FilterBase
kind"app" | "library" | "asset_pack"every kindRestrict results to one package kind.
namespacestringevery namespaceRestrict to one registry namespace.

In the guide: List and install packages

datumhue.packages.info

function
datumhue.packages.info(name: string, opts?: packages.InfoOptions) -> PackageRef

Look up a single entry by exact @scope/name; raises when no entry matches.

Example
local hello = datumhue.packages.info("@datumhue/hello")
datumhue.app.spawn({ package_ref = hello })

opts packages.InfoOptions options 1 key

KeyTypeDefaultDescription
namespacestringthe name's @scope, or datumhue for an @datumhue nameCatalog namespace to look up in.

In the guide: List and install packages Sell a package

datumhue.packages.versions

function
datumhue.packages.versions(name: string, opts?: packages.InfoOptions) -> string[]

Every published version of a @scope/name except the yanked ones, newest first; empty when the name is unknown to the catalog.

Example
local versions = datumhue.packages.versions("@datumhue/hello")
-- Newest first.
print(versions[1])

opts packages.InfoOptions options 1 key

KeyTypeDefaultDescription
namespacestringthe name's @scope, or datumhue for an @datumhue nameCatalog namespace to look up in.

datumhue.packages.installed

functionneeds packages
datumhue.packages.installed(opts?: packages.InstalledOptions) -> PackageRef[]

Array of PackageRef userdata for every installed package, sorted by namespace then name. Each ref reflects the version actually installed, which may be older than the catalog's latest. Reads this workstation's state, without asking the deployment.

Example
for _, ref in ipairs(datumhue.packages.installed({ kind = "app" })) do
    print(ref.name, ref:version())
end

opts packages.InstalledOptions options 2 keys, 2 inherited

KeyTypeDefaultDescription
From packages.FilterBase
kind"app" | "library" | "asset_pack"every kindRestrict results to one package kind.
namespacestringevery namespaceRestrict to one registry namespace.

In the guide: List and install packages

datumhue.packages.registries

function
datumhue.packages.registries() -> packages.RegistryInfo[]

One row per connected package registry, sorted by namespace. Empty until a registry has been reached.

returns packages.RegistryInfo record 2 keys

KeyTypeDescription
namespacestringThe registry's namespace.
availablebooleanWhether the registry can currently be reached. Checked periodically, and true until the first check. An unreachable registry keeps its catalog entries visible, but installing content from it that is not already on this device fails.

datumhue.packages.on_change

function
datumhue.packages.on_change(callback: fun(change: packages.ChangeEvent)) -> Subscription

Register a callback fired whenever a catalog entry is added or updated. The callback receives a change table with kind, namespace, and package. Returns a subscription; call :unsubscribe() to stop receiving changes.

In the guide: List and install packages

datumhue.packages.on_install_change

functionneeds packages
datumhue.packages.on_install_change(callback: fun(change: packages.InstallChangeEvent)) -> Subscription

Register a callback fired whenever the installed-package library changes. Returns a subscription; call :unsubscribe() to stop receiving changes.

datumhue.packages.on_registry_change

function
datumhue.packages.on_registry_change(callback: fun(change: packages.RegistryInfo)) -> Subscription

Register a callback fired whenever a connected registry's reachability flips (see registries). Returns a subscription; call :unsubscribe() to stop receiving changes.

Types 7

packages.ChangeEvent

record

record 3 keys

KeyTypeDescription
kindstringWhat changed: "added" for a newly listed entry, "updated" for a listed entry whose details or content changed.
namespacestringThe catalog namespace it lives in.
packagePackageRefA reference to the changed package.

Used by: datumhue.packages.on_change

packages.FilterBase

options

options 2 keys

KeyTypeDefaultDescription
kind"app" | "library" | "asset_pack"every kindRestrict results to one package kind.
namespacestringevery namespaceRestrict to one registry namespace.

Extended by: packages.InstalledOptions, packages.ListOptions, packages.SearchOptions

packages.InfoOptions

options

options 1 key

KeyTypeDefaultDescription
namespacestringthe name's @scope, or datumhue for an @datumhue nameCatalog namespace to look up in.

Used by: datumhue.packages.info, datumhue.packages.versions

packages.InstallChangeEvent

record

record 3 keys

KeyTypeDescription
kind"installed" | "updated" | "uninstalled"What happened to the library entry.
namespacestringThe registry namespace the entry belongs to.
packagePackageRefThe affected library entry. For "uninstalled" it is built from the removed record, so it stays complete even when the version is no longer in any catalog.

Used by: datumhue.packages.on_install_change

packages.InstallChangeKind

enum
ValueDescription
"installed"The package was added to the library.
"updated"An installed package was replaced by a different version.
"uninstalled"The package was removed from the library.

Nested in: packages.InstallChangeEvent

packages.Kind

enum
ValueDescription
"app"
"library"
"asset_pack"

Used by: Package:kind

Nested in: packages.FilterBase

packages.RegistryInfo

record

record 2 keys

KeyTypeDescription
namespacestringThe registry's namespace.
availablebooleanWhether the registry can currently be reached. Checked periodically, and true until the first check. An unreachable registry keeps its catalog entries visible, but installing content from it that is not already on this device fails.

Used by: datumhue.packages.registries, datumhue.packages.on_registry_change

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