mirror of
https://github.com/helmfile/helmfile.git
synced 2026-10-19 11:07:24 +02:00
feat: helmfile as a go library (#639)
* feat: helmfile as a go library This removes almost all the dependencies from the helmfile core logic to urfave/cli. `main.go` is now a thin wrapper around the core logic implemented in `pkg/app`.
This commit is contained in:
KUOKA Yusuke
+302
@@ -0,0 +1,302 @@
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package app
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import (
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"fmt"
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"github.com/roboll/helmfile/pkg/argparser"
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"github.com/roboll/helmfile/pkg/helmexec"
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"github.com/roboll/helmfile/pkg/state"
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"strings"
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)
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type Run struct {
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state *state.HelmState
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helm helmexec.Interface
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ctx Context
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Ask func(string) bool
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}
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func NewRun(st *state.HelmState, helm helmexec.Interface, ctx Context) *Run {
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return &Run{state: st, helm: helm, ctx: ctx}
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}
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func (r *Run) askForConfirmation(msg string) bool {
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if r.Ask != nil {
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return r.Ask(msg)
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}
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return AskForConfirmation(msg)
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}
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func (r *Run) Deps(c DepsConfigProvider) []error {
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r.helm.SetExtraArgs(argparser.GetArgs(c.Args(), r.state)...)
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return r.state.UpdateDeps(r.helm)
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}
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func (r *Run) Repos(c ReposConfigProvider) []error {
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r.helm.SetExtraArgs(argparser.GetArgs(c.Args(), r.state)...)
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return r.ctx.SyncReposOnce(r.state, r.helm)
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}
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func (r *Run) DeprecatedSyncCharts(c DeprecatedChartsConfigProvider) []error {
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st := r.state
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helm := r.helm
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affectedReleases := state.AffectedReleases{}
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errs := st.SyncReleases(&affectedReleases, helm, c.Values(), c.Concurrency())
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affectedReleases.DisplayAffectedReleases(c.Logger())
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return errs
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}
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func (r *Run) Status(c StatusesConfigProvider) []error {
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workers := c.Concurrency()
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r.helm.SetExtraArgs(argparser.GetArgs(c.Args(), r.state)...)
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return r.state.ReleaseStatuses(r.helm, workers)
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}
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func (r *Run) Delete(c DeleteConfigProvider) []error {
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affectedReleases := state.AffectedReleases{}
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purge := c.Purge()
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errs := []error{}
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names := make([]string, len(r.state.Releases))
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for i, r := range r.state.Releases {
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names[i] = fmt.Sprintf(" %s (%s)", r.Name, r.Chart)
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}
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msg := fmt.Sprintf(`Affected releases are:
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%s
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Do you really want to delete?
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Helmfile will delete all your releases, as shown above.
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`, strings.Join(names, "\n"))
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interactive := c.Interactive()
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if !interactive || interactive && r.askForConfirmation(msg) {
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r.helm.SetExtraArgs(argparser.GetArgs(c.Args(), r.state)...)
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errs = r.state.DeleteReleases(&affectedReleases, r.helm, purge)
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}
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affectedReleases.DisplayAffectedReleases(c.Logger())
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return errs
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}
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func (r *Run) Destroy(c DestroyConfigProvider) []error {
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errs := []error{}
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affectedReleases := state.AffectedReleases{}
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names := make([]string, len(r.state.Releases))
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for i, r := range r.state.Releases {
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names[i] = fmt.Sprintf(" %s (%s)", r.Name, r.Chart)
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}
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msg := fmt.Sprintf(`Affected releases are:
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%s
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Do you really want to delete?
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Helmfile will delete all your releases, as shown above.
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`, strings.Join(names, "\n"))
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interactive := c.Interactive()
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if !interactive || interactive && r.askForConfirmation(msg) {
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r.helm.SetExtraArgs(argparser.GetArgs(c.Args(), r.state)...)
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errs = r.state.DeleteReleases(&affectedReleases, r.helm, true)
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}
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affectedReleases.DisplayAffectedReleases(c.Logger())
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return errs
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}
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func (r *Run) Apply(c ApplyConfigProvider) []error {
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st := r.state
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helm := r.helm
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ctx := r.ctx
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affectedReleases := state.AffectedReleases{}
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if !c.SkipDeps() {
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if errs := ctx.SyncReposOnce(st, helm); errs != nil && len(errs) > 0 {
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return errs
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}
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if errs := st.BuildDeps(helm); errs != nil && len(errs) > 0 {
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return errs
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}
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}
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if errs := st.PrepareReleases(helm, "apply"); errs != nil && len(errs) > 0 {
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return errs
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}
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// helm must be 2.11+ and helm-diff should be provided `--detailed-exitcode` in order for `helmfile apply` to work properly
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detailedExitCode := true
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releases, errs := st.DiffReleases(helm, c.Values(), c.Concurrency(), detailedExitCode, c.SuppressSecrets(), false)
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releasesToBeDeleted, err := st.DetectReleasesToBeDeleted(helm)
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if err != nil {
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errs = append(errs, err)
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}
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fatalErrs := []error{}
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noError := true
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for _, e := range errs {
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switch err := e.(type) {
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case *state.ReleaseError:
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if err.Code != 2 {
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noError = false
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fatalErrs = append(fatalErrs, e)
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}
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default:
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noError = false
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fatalErrs = append(fatalErrs, e)
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}
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}
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// sync only when there are changes
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if noError {
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if len(releases) == 0 && len(releasesToBeDeleted) == 0 {
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// TODO better way to get the logger
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logger := c.Logger()
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logger.Infof("")
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logger.Infof("No affected releases")
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} else {
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names := []string{}
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for _, r := range releases {
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names = append(names, fmt.Sprintf(" %s (%s) UPDATED", r.Name, r.Chart))
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}
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for _, r := range releasesToBeDeleted {
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names = append(names, fmt.Sprintf(" %s (%s) DELETED", r.Name, r.Chart))
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}
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msg := fmt.Sprintf(`Affected releases are:
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%s
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Do you really want to apply?
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Helmfile will apply all your changes, as shown above.
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`, strings.Join(names, "\n"))
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interactive := c.Interactive()
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if !interactive || interactive && r.askForConfirmation(msg) {
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rs := []state.ReleaseSpec{}
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for _, r := range releases {
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rs = append(rs, *r)
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}
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for _, r := range releasesToBeDeleted {
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rs = append(rs, *r)
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}
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r.helm.SetExtraArgs(argparser.GetArgs(c.Args(), r.state)...)
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st.Releases = rs
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return st.SyncReleases(&affectedReleases, helm, c.Values(), c.Concurrency())
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}
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}
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}
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affectedReleases.DisplayAffectedReleases(c.Logger())
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return fatalErrs
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}
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func (r *Run) Diff(c DiffConfigProvider) []error {
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st := r.state
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helm := r.helm
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ctx := r.ctx
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if !c.SkipDeps() {
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if errs := ctx.SyncReposOnce(st, helm); errs != nil && len(errs) > 0 {
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return errs
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}
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if errs := st.BuildDeps(helm); errs != nil && len(errs) > 0 {
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return errs
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}
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}
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if errs := st.PrepareReleases(helm, "diff"); errs != nil && len(errs) > 0 {
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return errs
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}
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r.helm.SetExtraArgs(argparser.GetArgs(c.Args(), r.state)...)
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_, errs := st.DiffReleases(helm, c.Values(), c.Concurrency(), c.DetailedExitcode(), c.SuppressSecrets(), true)
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return errs
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}
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func (r *Run) Sync(c SyncConfigProvider) []error {
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st := r.state
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helm := r.helm
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ctx := r.ctx
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affectedReleases := state.AffectedReleases{}
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if !c.SkipDeps() {
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if errs := ctx.SyncReposOnce(st, helm); errs != nil && len(errs) > 0 {
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return errs
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}
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if errs := st.BuildDeps(helm); errs != nil && len(errs) > 0 {
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return errs
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}
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}
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if errs := st.PrepareReleases(helm, "sync"); errs != nil && len(errs) > 0 {
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return errs
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}
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r.helm.SetExtraArgs(argparser.GetArgs(c.Args(), r.state)...)
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errs := st.SyncReleases(&affectedReleases, helm, c.Values(), c.Concurrency())
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affectedReleases.DisplayAffectedReleases(c.Logger())
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return errs
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}
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func (r *Run) Template(c TemplateConfigProvider) []error {
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state := r.state
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helm := r.helm
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ctx := r.ctx
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if !c.SkipDeps() {
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if errs := ctx.SyncReposOnce(state, helm); errs != nil && len(errs) > 0 {
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return errs
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}
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if errs := state.BuildDeps(helm); errs != nil && len(errs) > 0 {
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return errs
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}
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}
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if errs := state.PrepareReleases(helm, "template"); errs != nil && len(errs) > 0 {
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return errs
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}
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args := argparser.GetArgs(c.Args(), state)
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return state.TemplateReleases(helm, c.Values(), args, c.Concurrency())
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}
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func (r *Run) Test(c TestConfigProvider) []error {
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cleanup := c.Cleanup()
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timeout := c.Timeout()
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concurrency := c.Concurrency()
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r.helm.SetExtraArgs(argparser.GetArgs(c.Args(), r.state)...)
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return r.state.TestReleases(r.helm, cleanup, timeout, concurrency)
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}
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func (r *Run) Lint(c LintConfigProvider) []error {
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state := r.state
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helm := r.helm
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ctx := r.ctx
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values := c.Values()
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args := argparser.GetArgs(c.Args(), state)
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workers := c.Concurrency()
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if !c.SkipDeps() {
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if errs := ctx.SyncReposOnce(state, helm); errs != nil && len(errs) > 0 {
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return errs
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}
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if errs := state.BuildDeps(helm); errs != nil && len(errs) > 0 {
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return errs
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}
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}
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if errs := state.PrepareReleases(helm, "lint"); errs != nil && len(errs) > 0 {
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return errs
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}
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return state.LintReleases(helm, values, args, workers)
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}
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