mirror of
https://github.com/opentffoundation/opentf.git
synced 2026-04-28 12:02:03 -04:00
072c6d9aed
We've previously been copying this function around so it could remain unexported while being used in various packages. However, it's a non-trivial function with lots of specific assumptions built into it, so here we'll put it somewhere that other packages can depend on it _and_ document the assumptions it seems to be making for future reference. As a bonus, this now uses os.SameFile to detect when two paths point to the same physical file, instead of the slightly buggy local implementation we had before which only worked on Unix systems and did not correctly handle when the paths were on different physical devices. The copy of the function I extracted here is the one from internal/initwd, so this commit also includes the removal of that unexported version and updating the callers in that package to use at at this new location.
624 lines
18 KiB
Go
624 lines
18 KiB
Go
package initwd
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import (
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"flag"
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"fmt"
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"io/ioutil"
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"log"
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"os"
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"path/filepath"
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"strings"
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"testing"
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"github.com/go-test/deep"
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version "github.com/hashicorp/go-version"
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"github.com/hashicorp/terraform/configs"
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"github.com/hashicorp/terraform/configs/configload"
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"github.com/hashicorp/terraform/helper/logging"
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"github.com/hashicorp/terraform/internal/copydir"
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"github.com/hashicorp/terraform/registry"
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"github.com/hashicorp/terraform/tfdiags"
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)
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func TestMain(m *testing.M) {
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flag.Parse()
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if testing.Verbose() {
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// if we're verbose, use the logging requested by TF_LOG
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logging.SetOutput()
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} else {
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// otherwise silence all logs
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log.SetOutput(ioutil.Discard)
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}
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os.Exit(m.Run())
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}
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func TestModuleInstaller(t *testing.T) {
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fixtureDir := filepath.Clean("testdata/local-modules")
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dir, done := tempChdir(t, fixtureDir)
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defer done()
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hooks := &testInstallHooks{}
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modulesDir := filepath.Join(dir, ".terraform/modules")
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inst := NewModuleInstaller(modulesDir, nil)
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_, diags := inst.InstallModules(".", false, hooks)
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assertNoDiagnostics(t, diags)
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wantCalls := []testInstallHookCall{
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{
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Name: "Install",
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ModuleAddr: "child_a",
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PackageAddr: "",
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LocalPath: "child_a",
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},
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{
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Name: "Install",
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ModuleAddr: "child_a.child_b",
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PackageAddr: "",
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LocalPath: "child_a/child_b",
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},
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}
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if assertResultDeepEqual(t, hooks.Calls, wantCalls) {
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return
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}
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loader, err := configload.NewLoader(&configload.Config{
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ModulesDir: modulesDir,
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})
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if err != nil {
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t.Fatal(err)
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}
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// Make sure the configuration is loadable now.
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// (This ensures that correct information is recorded in the manifest.)
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config, loadDiags := loader.LoadConfig(".")
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assertNoDiagnostics(t, tfdiags.Diagnostics{}.Append(loadDiags))
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wantTraces := map[string]string{
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"": "in root module",
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"child_a": "in child_a module",
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"child_a.child_b": "in child_b module",
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}
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gotTraces := map[string]string{}
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config.DeepEach(func(c *configs.Config) {
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path := strings.Join(c.Path, ".")
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if c.Module.Variables["v"] == nil {
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gotTraces[path] = "<missing>"
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return
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}
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varDesc := c.Module.Variables["v"].Description
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gotTraces[path] = varDesc
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})
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assertResultDeepEqual(t, gotTraces, wantTraces)
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}
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func TestModuleInstaller_error(t *testing.T) {
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fixtureDir := filepath.Clean("testdata/local-module-error")
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dir, done := tempChdir(t, fixtureDir)
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defer done()
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hooks := &testInstallHooks{}
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modulesDir := filepath.Join(dir, ".terraform/modules")
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inst := NewModuleInstaller(modulesDir, nil)
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_, diags := inst.InstallModules(".", false, hooks)
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if !diags.HasErrors() {
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t.Fatal("expected error")
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} else {
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assertDiagnosticSummary(t, diags, "Module not found")
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}
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}
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func TestModuleInstaller_invalid_version_constraint_error(t *testing.T) {
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fixtureDir := filepath.Clean("testdata/invalid-version-constraint")
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dir, done := tempChdir(t, fixtureDir)
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defer done()
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hooks := &testInstallHooks{}
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modulesDir := filepath.Join(dir, ".terraform/modules")
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inst := NewModuleInstaller(modulesDir, nil)
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_, diags := inst.InstallModules(".", false, hooks)
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if !diags.HasErrors() {
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t.Fatal("expected error")
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} else {
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assertDiagnosticSummary(t, diags, "Invalid version constraint")
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}
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}
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func TestModuleInstaller_invalidVersionConstraintGetter(t *testing.T) {
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fixtureDir := filepath.Clean("testdata/invalid-version-constraint")
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dir, done := tempChdir(t, fixtureDir)
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defer done()
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hooks := &testInstallHooks{}
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modulesDir := filepath.Join(dir, ".terraform/modules")
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inst := NewModuleInstaller(modulesDir, nil)
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_, diags := inst.InstallModules(".", false, hooks)
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if !diags.HasErrors() {
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t.Fatal("expected error")
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} else {
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assertDiagnosticSummary(t, diags, "Invalid version constraint")
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}
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}
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func TestModuleInstaller_invalidVersionConstraintLocal(t *testing.T) {
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fixtureDir := filepath.Clean("testdata/invalid-version-constraint-local")
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dir, done := tempChdir(t, fixtureDir)
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defer done()
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hooks := &testInstallHooks{}
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modulesDir := filepath.Join(dir, ".terraform/modules")
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inst := NewModuleInstaller(modulesDir, nil)
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_, diags := inst.InstallModules(".", false, hooks)
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if !diags.HasErrors() {
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t.Fatal("expected error")
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} else {
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assertDiagnosticSummary(t, diags, "Invalid version constraint")
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}
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}
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func TestModuleInstaller_symlink(t *testing.T) {
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fixtureDir := filepath.Clean("testdata/local-module-symlink")
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dir, done := tempChdir(t, fixtureDir)
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defer done()
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hooks := &testInstallHooks{}
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modulesDir := filepath.Join(dir, ".terraform/modules")
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inst := NewModuleInstaller(modulesDir, nil)
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_, diags := inst.InstallModules(".", false, hooks)
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assertNoDiagnostics(t, diags)
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wantCalls := []testInstallHookCall{
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{
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Name: "Install",
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ModuleAddr: "child_a",
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PackageAddr: "",
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LocalPath: "child_a",
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},
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{
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Name: "Install",
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ModuleAddr: "child_a.child_b",
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PackageAddr: "",
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LocalPath: "child_a/child_b",
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},
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}
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if assertResultDeepEqual(t, hooks.Calls, wantCalls) {
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return
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}
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loader, err := configload.NewLoader(&configload.Config{
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ModulesDir: modulesDir,
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})
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if err != nil {
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t.Fatal(err)
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}
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// Make sure the configuration is loadable now.
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// (This ensures that correct information is recorded in the manifest.)
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config, loadDiags := loader.LoadConfig(".")
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assertNoDiagnostics(t, tfdiags.Diagnostics{}.Append(loadDiags))
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wantTraces := map[string]string{
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"": "in root module",
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"child_a": "in child_a module",
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"child_a.child_b": "in child_b module",
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}
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gotTraces := map[string]string{}
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config.DeepEach(func(c *configs.Config) {
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path := strings.Join(c.Path, ".")
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if c.Module.Variables["v"] == nil {
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gotTraces[path] = "<missing>"
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return
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}
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varDesc := c.Module.Variables["v"].Description
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gotTraces[path] = varDesc
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})
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assertResultDeepEqual(t, gotTraces, wantTraces)
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}
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func TestLoaderInstallModules_registry(t *testing.T) {
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if os.Getenv("TF_ACC") == "" {
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t.Skip("this test accesses registry.terraform.io and github.com; set TF_ACC=1 to run it")
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}
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fixtureDir := filepath.Clean("testdata/registry-modules")
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tmpDir, done := tempChdir(t, fixtureDir)
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// the module installer runs filepath.EvalSymlinks() on the destination
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// directory before copying files, and the resultant directory is what is
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// returned by the install hooks. Without this, tests could fail on machines
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// where the default temp dir was a symlink.
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dir, err := filepath.EvalSymlinks(tmpDir)
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if err != nil {
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t.Error(err)
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}
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defer done()
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hooks := &testInstallHooks{}
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modulesDir := filepath.Join(dir, ".terraform/modules")
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inst := NewModuleInstaller(modulesDir, registry.NewClient(nil, nil))
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_, diags := inst.InstallModules(dir, false, hooks)
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assertNoDiagnostics(t, diags)
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v := version.Must(version.NewVersion("0.0.1"))
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wantCalls := []testInstallHookCall{
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// the configuration builder visits each level of calls in lexicographical
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// order by name, so the following list is kept in the same order.
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// acctest_child_a accesses //modules/child_a directly
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{
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Name: "Download",
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ModuleAddr: "acctest_child_a",
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PackageAddr: "hashicorp/module-installer-acctest/aws", // intentionally excludes the subdir because we're downloading the whole package here
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Version: v,
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},
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{
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Name: "Install",
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ModuleAddr: "acctest_child_a",
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Version: v,
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LocalPath: filepath.Join(dir, ".terraform/modules/acctest_child_a/hashicorp-terraform-aws-module-installer-acctest-853d038/modules/child_a"),
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},
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// acctest_child_a.child_b
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// (no download because it's a relative path inside acctest_child_a)
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{
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Name: "Install",
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ModuleAddr: "acctest_child_a.child_b",
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LocalPath: filepath.Join(dir, ".terraform/modules/acctest_child_a/hashicorp-terraform-aws-module-installer-acctest-853d038/modules/child_b"),
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},
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// acctest_child_b accesses //modules/child_b directly
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{
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Name: "Download",
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ModuleAddr: "acctest_child_b",
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PackageAddr: "hashicorp/module-installer-acctest/aws", // intentionally excludes the subdir because we're downloading the whole package here
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Version: v,
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},
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{
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Name: "Install",
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ModuleAddr: "acctest_child_b",
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Version: v,
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LocalPath: filepath.Join(dir, ".terraform/modules/acctest_child_b/hashicorp-terraform-aws-module-installer-acctest-853d038/modules/child_b"),
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},
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// acctest_root
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{
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Name: "Download",
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ModuleAddr: "acctest_root",
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PackageAddr: "hashicorp/module-installer-acctest/aws",
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Version: v,
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},
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{
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Name: "Install",
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ModuleAddr: "acctest_root",
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Version: v,
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LocalPath: filepath.Join(dir, ".terraform/modules/acctest_root/hashicorp-terraform-aws-module-installer-acctest-853d038"),
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},
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// acctest_root.child_a
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// (no download because it's a relative path inside acctest_root)
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{
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Name: "Install",
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ModuleAddr: "acctest_root.child_a",
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LocalPath: filepath.Join(dir, ".terraform/modules/acctest_root/hashicorp-terraform-aws-module-installer-acctest-853d038/modules/child_a"),
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},
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// acctest_root.child_a.child_b
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// (no download because it's a relative path inside acctest_root, via acctest_root.child_a)
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{
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Name: "Install",
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ModuleAddr: "acctest_root.child_a.child_b",
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LocalPath: filepath.Join(dir, ".terraform/modules/acctest_root/hashicorp-terraform-aws-module-installer-acctest-853d038/modules/child_b"),
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},
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}
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if assertResultDeepEqual(t, hooks.Calls, wantCalls) {
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return
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}
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//check that the registry reponses were cached
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if _, ok := inst.moduleVersions["hashicorp/module-installer-acctest/aws"]; !ok {
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t.Fatal("module versions cache was not populated")
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}
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if _, ok := inst.moduleVersionsUrl[moduleVersion{module: "hashicorp/module-installer-acctest/aws", version: "0.0.1"}]; !ok {
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t.Fatal("module download url cache was not populated")
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}
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loader, err := configload.NewLoader(&configload.Config{
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ModulesDir: modulesDir,
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})
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if err != nil {
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t.Fatal(err)
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}
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// Make sure the configuration is loadable now.
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// (This ensures that correct information is recorded in the manifest.)
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config, loadDiags := loader.LoadConfig(".")
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assertNoDiagnostics(t, tfdiags.Diagnostics{}.Append(loadDiags))
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wantTraces := map[string]string{
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"": "in local caller for registry-modules",
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"acctest_root": "in root module",
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"acctest_root.child_a": "in child_a module",
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"acctest_root.child_a.child_b": "in child_b module",
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"acctest_child_a": "in child_a module",
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"acctest_child_a.child_b": "in child_b module",
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"acctest_child_b": "in child_b module",
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}
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gotTraces := map[string]string{}
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config.DeepEach(func(c *configs.Config) {
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path := strings.Join(c.Path, ".")
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if c.Module.Variables["v"] == nil {
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gotTraces[path] = "<missing>"
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return
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}
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varDesc := c.Module.Variables["v"].Description
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gotTraces[path] = varDesc
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})
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assertResultDeepEqual(t, gotTraces, wantTraces)
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}
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func TestLoaderInstallModules_goGetter(t *testing.T) {
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if os.Getenv("TF_ACC") == "" {
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t.Skip("this test accesses github.com; set TF_ACC=1 to run it")
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}
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fixtureDir := filepath.Clean("testdata/go-getter-modules")
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tmpDir, done := tempChdir(t, fixtureDir)
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// the module installer runs filepath.EvalSymlinks() on the destination
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// directory before copying files, and the resultant directory is what is
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// returned by the install hooks. Without this, tests could fail on machines
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// where the default temp dir was a symlink.
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dir, err := filepath.EvalSymlinks(tmpDir)
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if err != nil {
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t.Error(err)
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}
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defer done()
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hooks := &testInstallHooks{}
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modulesDir := filepath.Join(dir, ".terraform/modules")
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inst := NewModuleInstaller(modulesDir, registry.NewClient(nil, nil))
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_, diags := inst.InstallModules(dir, false, hooks)
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assertNoDiagnostics(t, diags)
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wantCalls := []testInstallHookCall{
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// the configuration builder visits each level of calls in lexicographical
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// order by name, so the following list is kept in the same order.
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// acctest_child_a accesses //modules/child_a directly
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{
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Name: "Download",
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ModuleAddr: "acctest_child_a",
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PackageAddr: "github.com/hashicorp/terraform-aws-module-installer-acctest?ref=v0.0.1", // intentionally excludes the subdir because we're downloading the whole repo here
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},
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{
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Name: "Install",
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ModuleAddr: "acctest_child_a",
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LocalPath: filepath.Join(dir, ".terraform/modules/acctest_child_a/modules/child_a"),
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},
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// acctest_child_a.child_b
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// (no download because it's a relative path inside acctest_child_a)
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{
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Name: "Install",
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ModuleAddr: "acctest_child_a.child_b",
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LocalPath: filepath.Join(dir, ".terraform/modules/acctest_child_a/modules/child_b"),
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},
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// acctest_child_b accesses //modules/child_b directly
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{
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Name: "Download",
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ModuleAddr: "acctest_child_b",
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PackageAddr: "github.com/hashicorp/terraform-aws-module-installer-acctest?ref=v0.0.1", // intentionally excludes the subdir because we're downloading the whole package here
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},
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{
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Name: "Install",
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ModuleAddr: "acctest_child_b",
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LocalPath: filepath.Join(dir, ".terraform/modules/acctest_child_b/modules/child_b"),
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},
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// acctest_root
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{
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Name: "Download",
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ModuleAddr: "acctest_root",
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PackageAddr: "github.com/hashicorp/terraform-aws-module-installer-acctest?ref=v0.0.1",
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},
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{
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Name: "Install",
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ModuleAddr: "acctest_root",
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LocalPath: filepath.Join(dir, ".terraform/modules/acctest_root"),
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},
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// acctest_root.child_a
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// (no download because it's a relative path inside acctest_root)
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{
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Name: "Install",
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ModuleAddr: "acctest_root.child_a",
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LocalPath: filepath.Join(dir, ".terraform/modules/acctest_root/modules/child_a"),
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},
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// acctest_root.child_a.child_b
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// (no download because it's a relative path inside acctest_root, via acctest_root.child_a)
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{
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Name: "Install",
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ModuleAddr: "acctest_root.child_a.child_b",
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LocalPath: filepath.Join(dir, ".terraform/modules/acctest_root/modules/child_b"),
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},
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}
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if assertResultDeepEqual(t, hooks.Calls, wantCalls) {
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return
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}
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loader, err := configload.NewLoader(&configload.Config{
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ModulesDir: modulesDir,
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})
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if err != nil {
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t.Fatal(err)
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}
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|
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// Make sure the configuration is loadable now.
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// (This ensures that correct information is recorded in the manifest.)
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config, loadDiags := loader.LoadConfig(".")
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assertNoDiagnostics(t, tfdiags.Diagnostics{}.Append(loadDiags))
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wantTraces := map[string]string{
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"": "in local caller for go-getter-modules",
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"acctest_root": "in root module",
|
|
"acctest_root.child_a": "in child_a module",
|
|
"acctest_root.child_a.child_b": "in child_b module",
|
|
"acctest_child_a": "in child_a module",
|
|
"acctest_child_a.child_b": "in child_b module",
|
|
"acctest_child_b": "in child_b module",
|
|
}
|
|
gotTraces := map[string]string{}
|
|
config.DeepEach(func(c *configs.Config) {
|
|
path := strings.Join(c.Path, ".")
|
|
if c.Module.Variables["v"] == nil {
|
|
gotTraces[path] = "<missing>"
|
|
return
|
|
}
|
|
varDesc := c.Module.Variables["v"].Description
|
|
gotTraces[path] = varDesc
|
|
})
|
|
assertResultDeepEqual(t, gotTraces, wantTraces)
|
|
|
|
}
|
|
|
|
type testInstallHooks struct {
|
|
Calls []testInstallHookCall
|
|
}
|
|
|
|
type testInstallHookCall struct {
|
|
Name string
|
|
ModuleAddr string
|
|
PackageAddr string
|
|
Version *version.Version
|
|
LocalPath string
|
|
}
|
|
|
|
func (h *testInstallHooks) Download(moduleAddr, packageAddr string, version *version.Version) {
|
|
h.Calls = append(h.Calls, testInstallHookCall{
|
|
Name: "Download",
|
|
ModuleAddr: moduleAddr,
|
|
PackageAddr: packageAddr,
|
|
Version: version,
|
|
})
|
|
}
|
|
|
|
func (h *testInstallHooks) Install(moduleAddr string, version *version.Version, localPath string) {
|
|
h.Calls = append(h.Calls, testInstallHookCall{
|
|
Name: "Install",
|
|
ModuleAddr: moduleAddr,
|
|
Version: version,
|
|
LocalPath: localPath,
|
|
})
|
|
}
|
|
|
|
// tempChdir copies the contents of the given directory to a temporary
|
|
// directory and changes the test process's current working directory to
|
|
// point to that directory. Also returned is a function that should be
|
|
// called at the end of the test (e.g. via "defer") to restore the previous
|
|
// working directory.
|
|
//
|
|
// Tests using this helper cannot safely be run in parallel with other tests.
|
|
func tempChdir(t *testing.T, sourceDir string) (string, func()) {
|
|
t.Helper()
|
|
|
|
tmpDir, err := ioutil.TempDir("", "terraform-configload")
|
|
if err != nil {
|
|
t.Fatalf("failed to create temporary directory: %s", err)
|
|
return "", nil
|
|
}
|
|
|
|
if err := copydir.CopyDir(tmpDir, sourceDir); err != nil {
|
|
t.Fatalf("failed to copy fixture to temporary directory: %s", err)
|
|
return "", nil
|
|
}
|
|
|
|
oldDir, err := os.Getwd()
|
|
if err != nil {
|
|
t.Fatalf("failed to determine current working directory: %s", err)
|
|
return "", nil
|
|
}
|
|
|
|
err = os.Chdir(tmpDir)
|
|
if err != nil {
|
|
t.Fatalf("failed to switch to temp dir %s: %s", tmpDir, err)
|
|
return "", nil
|
|
}
|
|
|
|
// Most of the tests need this, so we'll make it just in case.
|
|
os.MkdirAll(filepath.Join(tmpDir, ".terraform/modules"), os.ModePerm)
|
|
|
|
t.Logf("tempChdir switched to %s after copying from %s", tmpDir, sourceDir)
|
|
|
|
return tmpDir, func() {
|
|
err := os.Chdir(oldDir)
|
|
if err != nil {
|
|
panic(fmt.Errorf("failed to restore previous working directory %s: %s", oldDir, err))
|
|
}
|
|
|
|
if os.Getenv("TF_CONFIGLOAD_TEST_KEEP_TMP") == "" {
|
|
os.RemoveAll(tmpDir)
|
|
}
|
|
}
|
|
}
|
|
|
|
func assertNoDiagnostics(t *testing.T, diags tfdiags.Diagnostics) bool {
|
|
t.Helper()
|
|
return assertDiagnosticCount(t, diags, 0)
|
|
}
|
|
|
|
func assertDiagnosticCount(t *testing.T, diags tfdiags.Diagnostics, want int) bool {
|
|
t.Helper()
|
|
if len(diags) != 0 {
|
|
t.Errorf("wrong number of diagnostics %d; want %d", len(diags), want)
|
|
for _, diag := range diags {
|
|
t.Logf("- %s", diag)
|
|
}
|
|
return true
|
|
}
|
|
return false
|
|
}
|
|
|
|
func assertDiagnosticSummary(t *testing.T, diags tfdiags.Diagnostics, want string) bool {
|
|
t.Helper()
|
|
|
|
for _, diag := range diags {
|
|
if diag.Description().Summary == want {
|
|
return false
|
|
}
|
|
}
|
|
|
|
t.Errorf("missing diagnostic summary %q", want)
|
|
for _, diag := range diags {
|
|
t.Logf("- %s", diag)
|
|
}
|
|
return true
|
|
}
|
|
|
|
func assertResultDeepEqual(t *testing.T, got, want interface{}) bool {
|
|
t.Helper()
|
|
if diff := deep.Equal(got, want); diff != nil {
|
|
for _, problem := range diff {
|
|
t.Errorf("%s", problem)
|
|
}
|
|
return true
|
|
}
|
|
return false
|
|
}
|