From ed9f73a896b99b1a9bc6d39f31f4f3703c391b22 Mon Sep 17 00:00:00 2001 From: Thomas Arrow Date: Mon, 4 Sep 2023 14:02:20 +0100 Subject: [PATCH] Fix interactive apply asks in no change situation This commit makes the apply logic exit early in the event there are no changes to releases. I believe this effectively reverts helmfile#522. Fixes: helmfile#679 Signed-off-by: Thomas Arrow --- docs/index.md | 2 +- pkg/app/app.go | 4 ++++ 2 files changed, 5 insertions(+), 1 deletion(-) diff --git a/docs/index.md b/docs/index.md index ef1aa27d..4fe8124a 100644 --- a/docs/index.md +++ b/docs/index.md @@ -1307,7 +1307,7 @@ Hooks associated to `presync` events are triggered before each release is synced This is the ideal event to execute any commands that may mutate the cluster state as it will not be run for read-only operations like `lint`, `diff` or `template`. `preapply` hooks are triggered before a release is uninstalled, installed, or upgraded as part of `helmfile apply`. -This is the ideal event to hook into when you are going to use `helmfile apply` for every kind of change and you want the hook to be triggered regardless of whether the releases have changed or not. Be sure to make each `preapply` hook command idempotent. Otherwise, rerunning helmfile-apply on a transient failure may end up either breaking your cluster, or the hook that runs for the second time will never succeed. +This is the ideal event to hook into when you are going to use `helmfile apply` for every kind of change and it is acceptable for the hook to be triggered regardless of whether the releases have changed or not (n.b. if there are no changes for any releases then this will not run). Be sure to make each `preapply` hook command idempotent. Otherwise, rerunning helmfile-apply on a transient failure may end up either breaking your cluster, or the hook that runs for the second time will never succeed. `preuninstall` hooks are triggered immediately before a release is uninstalled as part of `helmfile apply`, `helmfile sync`, `helmfile delete`, and `helmfile destroy`. diff --git a/pkg/app/app.go b/pkg/app/app.go index 917d06fe..07a9802d 100644 --- a/pkg/app/app.go +++ b/pkg/app/app.go @@ -1423,6 +1423,10 @@ Do you really want to apply? // Traverse DAG of all the releases so that we don't suffer from false-positive missing dependencies st.Releases = selectedAndNeededReleases + if len(releasesToBeUpdated) == 0 && len(releasesToBeDeleted) == 0 { + return true, false, nil + } + if !interactive || interactive && r.askForConfirmation(confMsg) { if _, preapplyErrors := withDAG(st, helm, a.Logger, state.PlanOptions{Purpose: "invoking preapply hooks for", Reverse: true, SelectedReleases: toApplyWithNeeds, SkipNeeds: true}, a.WrapWithoutSelector(func(subst *state.HelmState, helm helmexec.Interface) []error { for _, r := range subst.Releases {