71 lines
1.8 KiB
V
71 lines
1.8 KiB
V
module build
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import models { Target }
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import cron.expression { CronExpression, parse_expression }
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import time
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import datatypes { MinHeap }
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struct BuildJob {
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pub:
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// Earliest point this
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timestamp time.Time
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config BuildConfig
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}
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// Overloaded operator for comparing ScheduledBuild objects
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fn (r1 BuildJob) < (r2 BuildJob) bool {
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return r1.timestamp < r2.timestamp
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}
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pub struct BuildJobQueue {
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// Schedule to use for targets without explicitely defined cron expression
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default_schedule CronExpression
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// Base image to use for targets without defined base image
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default_base_image string
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mut:
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// For each architecture, a priority queue is tracked
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queues map[string]MinHeap<BuildJob>
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// Each queued build job is also stored in a map, with the keys being the
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// target IDs. This is used when removing or editing targets.
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// jobs map[int]BuildJob
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}
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pub fn new_job_queue(default_schedule CronExpression, default_base_image string) BuildJobQueue {
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return BuildJobQueue{
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default_schedule: default_schedule
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default_base_image: default_base_image
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}
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}
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// insert a new job into the queue for a given target on an architecture.
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pub fn (mut q BuildJobQueue) insert(target Target, arch string) ! {
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if arch !in q.queues {
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q.queues[arch] = MinHeap<BuildJob>{}
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}
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ce := if target.schedule != '' {
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parse_expression(target.schedule) or {
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return error("Error while parsing cron expression '$target.schedule' (id $target.id): $err.msg()")
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}
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} else {
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q.default_schedule
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}
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timestamp := ce.next_from_now()!
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job := BuildJob{
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timestamp: timestamp
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config: BuildConfig{
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target_id: target.id
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kind: target.kind
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url: target.url
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branch: target.branch
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repo: target.repo
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// TODO make this configurable
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base_image: q.default_base_image
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}
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}
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q.queues[arch].insert(job)
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}
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