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build_and_deployer.go
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build_and_deployer.go
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package engine
import (
"context"
"github.com/windmilleng/tilt/internal/store"
"github.com/windmilleng/tilt/internal/k8s"
"github.com/windmilleng/tilt/internal/logger"
"github.com/windmilleng/tilt/internal/model"
)
type BuildAndDeployer interface {
// BuildAndDeploy builds and deployed the specified manifest.
//
// Returns a BuildResult that expresses the output of the build.
//
// BuildResult can be used to construct a BuildState, which contains
// the last successful build and the files changed since that build.
BuildAndDeploy(ctx context.Context, manifest model.Manifest, currentState store.BuildState) (store.BuildResult, error)
}
type BuildOrder []BuildAndDeployer
type FallbackTester func(error) bool
// CompositeBuildAndDeployer tries to run each builder in order. If a builder
// emits an error, it uses the FallbackTester to determine whether the error is
// critical enough to stop the whole pipeline, or to fallback to the next
// builder.
type CompositeBuildAndDeployer struct {
builders BuildOrder
}
var _ BuildAndDeployer = &CompositeBuildAndDeployer{}
func NewCompositeBuildAndDeployer(builders BuildOrder) *CompositeBuildAndDeployer {
return &CompositeBuildAndDeployer{builders: builders}
}
func (composite *CompositeBuildAndDeployer) BuildAndDeploy(ctx context.Context, manifest model.Manifest, currentState store.BuildState) (store.BuildResult, error) {
var lastErr error
for _, builder := range composite.builders {
br, err := builder.BuildAndDeploy(ctx, manifest, currentState)
if err == nil {
return br, err
}
if !shouldFallBackForErr(err) {
return store.BuildResult{}, err
}
if _, ok := err.(RedirectToNextBuilder); ok {
logger.Get(ctx).Debugf("(expected error) falling back to next build and deploy method "+
"after error: %v", err)
} else {
logger.Get(ctx).Verbosef("falling back to next build and deploy method "+
"after unexpected error: %v", err)
}
lastErr = err
}
return store.BuildResult{}, lastErr
}
func DefaultBuildOrder(sbad *SyncletBuildAndDeployer, cbad *LocalContainerBuildAndDeployer, ibad *ImageBuildAndDeployer, dcbad *DockerComposeBuildAndDeployer, env k8s.Env, mode UpdateMode) BuildOrder {
if mode == UpdateModeImage || mode == UpdateModeNaive {
return BuildOrder{dcbad, ibad}
}
if mode == UpdateModeContainer {
return BuildOrder{cbad, dcbad, ibad}
}
if mode == UpdateModeSynclet {
ibad.SetInjectSynclet(true)
return BuildOrder{sbad, dcbad, ibad}
}
if env.IsLocalCluster() {
return BuildOrder{cbad, dcbad, ibad}
}
ibad.SetInjectSynclet(true)
return BuildOrder{sbad, dcbad, ibad}
}