jschoubben
18f978e852
The builder agrees a language's toolchain from the three build seats' toolchain-reported, kept in its state toolchains-heard (read back at its start), forgets a node's on the node-engine seat's running with no fingerprint (stopped) and never on a placement, says toolchain-agreed with its digests list only when the agreed version changes; builder_toolchains and builder_toolchains_drop; the manifest's reads of the build modules' toolchains are gone. The gate over the assignments is now PlacedNodes, which only counts nodes. Builds: design 47 G §492, §604, §546, §472, §574 Claude-Session: https://claude.ai/code/session_01JG73KEq4zoDfM9WtYpcQgZ
94 lines
3.1 KiB
Go
94 lines
3.1 KiB
Go
package buildrun
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import (
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"sort"
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"sync"
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"git.novox.be/novox/mesh-delivery/sdk/buildstep"
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)
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// LanguageOf is the language each build module's toolchain reports hold.
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var LanguageOf = map[string]string{GoBuildModule: "go", NodeBuildModule: "typescript"}
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// ToolchainsHeardState is the builder's old state section of the toolchains it heard (design 47 G §604, §546): one key
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// <node>.<language>, the toolchain as the build seat said it.
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const (
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ToolchainsHeardState = "toolchains-heard"
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ToolchainsHeardBucket = "mesh-delivery-builder_" + ToolchainsHeardState
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)
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// ToolchainSet holds each node's toolchain of a language, as the builder heard it (design 47 G §604). Safe for use from
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// the consumer and from a build at once.
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type ToolchainSet struct {
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mu sync.Mutex
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by map[string]map[string]buildstep.Toolchain // language -> node -> entry
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}
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// Set takes a node's toolchain in and answers whether the language's entries changed (a node's version, recipe or
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// digest, or a node appearing).
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func (s *ToolchainSet) Set(node string, tc buildstep.Toolchain) bool {
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s.mu.Lock()
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defer s.mu.Unlock()
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if s.by == nil {
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s.by = map[string]map[string]buildstep.Toolchain{}
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}
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if s.by[tc.Language] == nil {
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s.by[tc.Language] = map[string]buildstep.Toolchain{}
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}
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cur, had := s.by[tc.Language][node]
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s.by[tc.Language][node] = tc
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return !had || cur.Version != tc.Version || cur.Recipe != tc.Recipe || cur.Digest != tc.Digest
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}
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// Delete takes a node's toolchain of a language out and answers whether it was held.
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func (s *ToolchainSet) Delete(node, language string) bool {
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s.mu.Lock()
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defer s.mu.Unlock()
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if _, had := s.by[language][node]; !had {
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return false
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}
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delete(s.by[language], node)
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return true
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}
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// Entries are the nodes' entries of a language, in no particular order.
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func (s *ToolchainSet) Entries(language string) []buildstep.NodeToolchain {
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s.mu.Lock()
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defer s.mu.Unlock()
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var out []buildstep.NodeToolchain
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for node, tc := range s.by[language] {
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out = append(out, buildstep.NodeToolchain{Node: node, Toolchain: tc})
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}
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return out
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}
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// AgreedDigest is a digest of the agreed version and the nodes reporting it.
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type AgreedDigest struct {
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Digest string
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Nodes []string
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}
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// Digests are the digests the nodes reporting the agreed toolchain's version report, sorted by digest, each with its
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// nodes sorted (design 47 G §472, §574). A node that reports no digest is left out.
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func Digests(entries []buildstep.NodeToolchain, agreed buildstep.Toolchain) []AgreedDigest {
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by := map[string][]string{}
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for _, e := range entries {
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if e.Version == agreed.Version && e.Recipe == agreed.Recipe && e.Digest != "" {
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by[e.Digest] = append(by[e.Digest], e.Node)
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}
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}
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out := make([]AgreedDigest, 0, len(by))
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for d, nodes := range by {
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sort.Strings(nodes)
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out = append(out, AgreedDigest{Digest: d, Nodes: nodes})
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}
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sort.Slice(out, func(i, j int) bool { return out[i].Digest < out[j].Digest })
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return out
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}
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// The builder's tools over the toolchains it heard (design 47 G §604, §546).
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const (
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ToolchainsTool = "builder_toolchains"
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ToolchainsDropTool = "builder_toolchains_drop"
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)
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