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Say no cycle for a packages edge in a plan's last tier

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A packages edge orders nothing, so a module and what packages its source
share a tier by rule; hasCycle counted the edge and the merge handler said
"the last tier depends on itself" of plans with no cycle. Skip the kind as
tiersOf does. The planner tests' cycle rows and property now pass.
This commit is contained in:
jochen
2026-10-08 22:22:02 +02:00
parent 8ca4b04321
commit add807f034
2 changed files with 12 additions and 12 deletions
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cmd/mesh-controller/release_plan.go
+6 -1
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@@ -157,7 +157,9 @@ func reachableFrom(moved []string, edges []inventory.Edge) []string {
return out
}
// hasCycle says whether the tiers' last tier holds modules that still depend on each other.
// hasCycle says whether the tiers' last tier holds modules that still depend on each other. A packages
// edge orders nothing (tiersOf), so a module and what packages its source share a tier by rule: that is
// no cycle, and saying one was is a false report in every such plan's log.
func hasCycle(tiers [][]string, edges []inventory.Edge) bool {
if len(tiers) == 0 {
return false
@@ -167,6 +169,9 @@ func hasCycle(tiers [][]string, edges []inventory.Edge) bool {
last[m] = true
}
for _, e := range edges {
if e.Kind == inventory.EdgePackages {
continue
}
if last[e.From] && last[e.To] {
return true
}