316622a78f
557 files merged. Conflicts resolved: - CHANGELOG.md: took refactor/lazy-loading (session changelog) - versions.ncl: took refactor/lazy-loading (adds typedialog entries)
109 lines
3.9 KiB
Text
109 lines
3.9 KiB
Text
# Image state management — read/write role image state from ~/.config/provisioning/images/
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use ../lib_provisioning/utils/nickel_processor.nu [ncl-eval-soft]
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export def image-state-path [provider: string, role: string]: nothing -> string {
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let dir = ($env.HOME | path join ".config" | path join "provisioning" | path join "images")
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$dir | path join $"($provider)-($role).ncl"
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}
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export def image-state-dir []: nothing -> string {
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$env.HOME | path join ".config" | path join "provisioning" | path join "images"
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}
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# Read state file. Returns a record with ImageRoleState fields.
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# If the file does not exist, returns a pending-state record.
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export def image-state-read [provider: string, role: string]: nothing -> record {
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let path = (image-state-path $provider $role)
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if not ($path | path exists) {
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return {
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provider: $provider,
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role: $role,
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snapshot_id: "SNAPSHOT_PENDING",
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built_at: null,
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last_used: null,
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os_base: "unknown",
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labels: {},
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}
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}
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let result = (ncl-eval-soft $path [] (error make { msg: $"Failed to parse image state ($path)" }))
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$result
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}
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# Write state file as a Nickel record literal.
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export def image-state-write [provider: string, role: string, state: record]: nothing -> nothing {
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let dir = (image-state-dir)
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let path = (image-state-path $provider $role)
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if not ($dir | path exists) {
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^mkdir -p $dir
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}
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let built_at_val = if ($state.built_at? | is-empty) { "null" } else { $"\"($state.built_at)\"" }
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let last_used_val = if ($state.last_used? | is-empty) { "null" } else { $"\"($state.last_used)\"" }
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let labels_str = (
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$state.labels?
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| default {}
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| items {|k, v| $" ($k) = \"($v)\"," }
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| str join "\n"
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)
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let content = $"
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\{
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provider = \"($state.provider)\",
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role = \"($state.role)\",
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snapshot_id = \"($state.snapshot_id)\",
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built_at = ($built_at_val),
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last_used = ($last_used_val),
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os_base = \"($state.os_base | default "unknown")\",
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labels = \{
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($labels_str)
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\},
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\}
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" | str trim
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$content | save --force $path
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}
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# List state files. Optionally filter by provider.
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export def image-state-list [--provider: string = ""]: nothing -> list<record> {
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let dir = (image-state-dir)
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if not ($dir | path exists) {
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return []
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}
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let files = (ls $dir | where name =~ '\.ncl$' | get name)
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let states = ($files | each {|f|
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ncl-eval-soft $f [] null
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} | where { $in != null })
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if ($provider | is-empty) {
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$states
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} else {
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$states | where provider == $provider
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}
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}
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# Returns true if the snapshot exists and is within freshness_days of built_at.
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export def image-state-is-fresh [provider: string, role: string]: nothing -> bool {
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let state = (image-state-read $provider $role)
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if $state.snapshot_id == "SNAPSHOT_PENDING" { return false }
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if ($state.built_at | is-empty) { return false }
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let freshness_days = 30
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let built = ($state.built_at | into datetime)
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let age_days = ((date now) - $built | into duration | $in / 1day)
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$age_days <= $freshness_days
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}
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# Update only the snapshot_id and built_at fields in an existing state file.
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export def image-state-set-snapshot [provider: string, role: string, snapshot_id: string]: nothing -> nothing {
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let existing = (image-state-read $provider $role)
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let updated = ($existing | merge {
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snapshot_id: $snapshot_id,
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built_at: ((date now) | format date "%Y-%m-%dT%H:%M:%SZ"),
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})
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image-state-write $provider $role $updated
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}
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# Touch last_used timestamp for the given role state.
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export def image-state-touch-used [provider: string, role: string]: nothing -> nothing {
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let existing = (image-state-read $provider $role)
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let updated = ($existing | merge {
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last_used: ((date now) | format date "%Y-%m-%dT%H:%M:%SZ"),
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})
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image-state-write $provider $role $updated
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}
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