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generate_jest.go
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/
generate_jest.go
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package nestjs
import (
"fmt"
"log"
"math"
"os"
"path"
"github.com/bazelbuild/bazel-gazelle/language"
"github.com/bazelbuild/bazel-gazelle/rule"
)
func (lang *NestJS) genJestTest(
args language.GenerateArgs,
nestjsConfig *NestjsConfig,
project *Project,
jestSources []string,
tsSources []string,
) ([]*rule.Rule, []interface{}) {
generatedRules := make([]*rule.Rule, 0)
generatedImports := make([]interface{}, 0)
// Ignore if subdirectory that is not a project
if project == nil {
return generatedRules, generatedImports
}
// Gen ts_project for test
generatedTsRules, generatedTsImports := lang.genTsProjectForTest(
args,
nestjsConfig,
project,
jestSources,
)
generatedRules = append(generatedRules, generatedTsRules...)
generatedImports = append(generatedImports, generatedTsImports...)
// Add each test as an individual rule
for _, baseName := range jestSources {
filePath := path.Join(args.Dir, baseName)
ruleName := project.Name + "_test"
r := rule.NewRule(
getKind(args.Config, "jest_test"),
ruleName,
)
r.SetAttr("data", []string{baseName})
relativePart := path.Dir(baseName)
imports, jestTestCount := readFileAndParse(filePath, relativePart)
imports.set[baseName] = true
// TODO: Add snapshot support
var collectedSnapshots []string
snapshotFile, err := os.Stat(path.Join(args.Dir, "__snapshots__", baseName+".snap"))
if err == nil && snapshotFile.Mode().IsRegular() {
collectedSnapshots = append(
collectedSnapshots,
path.Join("__snapshots__", baseName+".snap"),
)
}
addJestAttributes(args, nestjsConfig, ruleName, r, jestTestCount, collectedSnapshots)
generatedRules = append(generatedRules, r)
generatedImports = append(generatedImports, imports)
npmPackageRules, npmPackageImports := genNpmPackage(args, project, tsSources)
generatedRules = append(generatedRules, npmPackageRules...)
generatedImports = append(generatedImports, npmPackageImports...)
}
return generatedRules, generatedImports
}
func addJestAttributes(
args language.GenerateArgs,
config *NestjsConfig,
baseName string,
r *rule.Rule,
jestTestCount int,
collectedSnapshots []string,
) {
if config.JestConfigRelativePath == "" && config.jestConfigPath == "" && !config.Quiet {
log.Print(
Warn(
"[%s/%s] no config for jest_test, use gazelle:js_jest_config directive",
args.Rel,
baseName,
),
)
}
if config.jestConfigPath == config.PackageJSONPath {
name := config.RootPkg
if name == "" {
name = "root"
}
r.SetAttr("config", fmt.Sprintf("//:%s_package_json", name))
} else {
r.SetAttr("config", config.JestConfigRelativePath)
}
if config.DefaultNpmLabel != "" {
r.SetAttr("node_modules", config.DefaultNpmLabel)
}
if config.JestTestsPerShard > 0 {
shardCount := int(math.Ceil(float64(jestTestCount) / float64(config.JestTestsPerShard)))
if shardCount > 1 {
r.SetAttr("shard_count", shardCount)
}
}
if config.JestSize != "" {
r.SetAttr("size", config.JestSize)
}
if len(config.Visibility.Labels) > 0 {
r.SetAttr("visibility", config.Visibility.Labels)
}
if len(collectedSnapshots) > 0 {
r.SetAttr("snapshots", collectedSnapshots)
} else {
r.DelAttr("snapshots")
}
}
func genNpmPackage(
args language.GenerateArgs,
project *Project,
tsSources []string,
) ([]*rule.Rule, []interface{}) {
generatedRules := make([]*rule.Rule, 0)
generatedImports := make([]interface{}, 0)
if project == nil || project.Type == "application" {
return generatedRules, generatedImports
}
r := rule.NewRule(getKind(args.Config, "npm_package"), project.Name)
generatedRules = append(generatedRules, r)
files := []string{"package.json"}
r.SetAttr("srcs", files)
r.SetAttr("visibility", []string{"//visibility:public"})
imports := imports{set: make(map[string]bool)}
for _, rel := range tsSources {
imports.set[rel] = true
}
generatedImports = append(generatedImports, &imports)
return generatedRules, generatedImports
}