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local_resource.go
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local_resource.go
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package tiltfile
import (
"fmt"
"path/filepath"
"github.com/pkg/errors"
"go.starlark.net/starlark"
"github.com/tilt-dev/tilt/internal/tiltfile/links"
"github.com/tilt-dev/tilt/internal/tiltfile/probe"
"github.com/tilt-dev/tilt/internal/tiltfile/starkit"
"github.com/tilt-dev/tilt/internal/tiltfile/value"
"github.com/tilt-dev/tilt/pkg/apis/core/v1alpha1"
"github.com/tilt-dev/tilt/pkg/model"
)
type localResource struct {
name string
updateCmd model.Cmd
serveCmd model.Cmd
// The working directory of the execution thread where the local resource was created.
threadDir string
deps []string
triggerMode triggerMode
autoInit bool
repos []model.LocalGitRepo
resourceDeps []string
ignores []string
allowParallel bool
links []model.Link
// for use in testing mvp
tags []string
isTest bool
readinessProbe *v1alpha1.Probe
}
func (s *tiltfileState) localResource(thread *starlark.Thread, fn *starlark.Builtin, args starlark.Tuple, kwargs []starlark.Tuple) (starlark.Value, error) {
var name value.Name
var updateCmdVal, updateCmdBatVal, serveCmdVal, serveCmdBatVal starlark.Value
var updateEnv, serveEnv value.StringStringMap
var triggerMode triggerMode
var readinessProbe probe.Probe
deps := value.NewLocalPathListUnpacker(thread)
var resourceDepsVal, tagsVal starlark.Sequence
var ignoresVal starlark.Value
var allowParallel bool
var links links.LinkList
autoInit := true
var isTest bool
if fn.Name() == testN {
// If we're initializing a test, by default parallelism is on
allowParallel = true
isTest = true
// TODO: implement timeout
// (Maybe all local resources should accept a timeout, not just tests?)
}
// TODO: using this func for both `local_resource()` and `test()`, but in future
// we should probably unpack args separately
if err := s.unpackArgs(fn.Name(), args, kwargs,
"name", &name,
"cmd?", &updateCmdVal,
"deps?", &deps,
"trigger_mode?", &triggerMode,
"resource_deps?", &resourceDepsVal,
"ignore?", &ignoresVal,
"auto_init?", &autoInit,
"serve_cmd?", &serveCmdVal,
"cmd_bat?", &updateCmdBatVal,
"serve_cmd_bat?", &serveCmdBatVal,
"allow_parallel?", &allowParallel,
"links?", &links,
"tags?", &tagsVal,
"env?", &updateEnv,
"serve_env?", &serveEnv,
"readiness_probe?", &readinessProbe,
); err != nil {
return nil, err
}
repos := reposForPaths(deps.Value)
resourceDeps, err := value.SequenceToStringSlice(resourceDepsVal)
if err != nil {
return nil, errors.Wrapf(err, "%s: resource_deps", fn.Name())
}
tags, err := value.SequenceToStringSlice(tagsVal)
if err != nil {
return nil, errors.Wrapf(err, "%s: resource_deps", fn.Name())
}
ignores, err := parseValuesToStrings(ignoresVal, "ignore")
if err != nil {
return nil, err
}
updateCmd, err := value.ValueGroupToCmdHelper(thread, updateCmdVal, updateCmdBatVal, updateEnv)
if err != nil {
return nil, err
}
serveCmd, err := value.ValueGroupToCmdHelper(thread, serveCmdVal, serveCmdBatVal, serveEnv)
if err != nil {
return nil, err
}
if updateCmd.Empty() && serveCmd.Empty() {
return nil, fmt.Errorf("local_resource must have a cmd and/or a serve_cmd, but both were empty")
}
res := localResource{
name: string(name),
updateCmd: updateCmd,
serveCmd: serveCmd,
threadDir: filepath.Dir(starkit.CurrentExecPath(thread)),
deps: deps.Value,
triggerMode: triggerMode,
autoInit: autoInit,
repos: repos,
resourceDeps: resourceDeps,
ignores: ignores,
allowParallel: allowParallel,
links: links.Links,
tags: tags,
isTest: isTest,
readinessProbe: readinessProbe.Spec(),
}
// check for duplicate resources by name and throw error if found
for _, elem := range s.localResources {
if elem.name == res.name {
return starlark.None, fmt.Errorf("Local resource %s has been defined multiple times", res.name)
}
}
s.localResources = append(s.localResources, res)
return starlark.None, nil
}