Remove all traces of libucl

This commit is contained in:
Mitchell Hashimoto 2014-08-19 09:56:50 -07:00
parent 47ddd197f5
commit 04975827ac
6 changed files with 38 additions and 631 deletions

View File

@ -1,69 +1,34 @@
CGO_CFLAGS:=-I$(CURDIR)/vendor/libucl/include
CGO_LDFLAGS:=-L$(CURDIR)/vendor/libucl
LIBUCL_NAME=libucl.a
TEST?=./...
# Windows-only
ifeq ($(OS), Windows_NT)
# The Libucl library is named libucl.dll
LIBUCL_NAME=libucl.dll
# Add the current directory on the path so the DLL is available.
export PATH := $(CURDIR):$(PATH)
endif
export CGO_CFLAGS CGO_LDFLAGS PATH
default: test
bin: config/y.go libucl
bin: config/y.go
@sh -c "$(CURDIR)/scripts/build.sh"
dev: config/y.go libucl
dev: config/y.go
@TF_DEV=1 sh -c "$(CURDIR)/scripts/build.sh"
libucl: vendor/libucl/$(LIBUCL_NAME)
test: config/y.go libucl
test: config/y.go
TF_ACC= go test $(TEST) $(TESTARGS) -timeout=10s
testacc: config/y.go libucl
testacc: config/y.go
@if [ "$(TEST)" = "./..." ]; then \
echo "ERROR: Set TEST to a specific package"; \
exit 1; \
fi
TF_ACC=1 go test $(TEST) -v $(TESTARGS) -timeout 30m
testrace: config/y.go libucl
testrace: config/y.go
TF_ACC= go test -race $(TEST) $(TESTARGS)
updatedeps: config/y.go libucl
updatedeps: config/y.go
go get -u -v ./...
config/y.go: config/expr.y
cd config/ && \
go tool yacc -p "expr" expr.y
vendor/libucl/libucl.a: vendor/libucl
cd vendor/libucl && \
cmake cmake/ && \
make
vendor/libucl/libucl.dll: vendor/libucl
cd vendor/libucl && \
$(MAKE) -f Makefile.w32 && \
cp .obj/libucl.dll . && \
cp libucl.dll $(CURDIR)
vendor/libucl:
rm -rf vendor/libucl
mkdir -p vendor/libucl
git clone https://github.com/hashicorp/libucl.git vendor/libucl
cd vendor/libucl && \
git checkout fix-win32-compile
clean:
rm config/y.go
rm -rf vendor
.PHONY: clean default libucl test updatedeps
.PHONY: clean default test updatedeps

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@ -2,9 +2,10 @@ package command
import (
"fmt"
"io/ioutil"
"strings"
"github.com/mitchellh/go-libucl"
"github.com/hashicorp/hcl"
)
// FlagVar is a flag.Value implementation for parsing user variables
@ -55,25 +56,23 @@ func (v *FlagVarFile) Set(raw string) error {
return nil
}
const libuclParseFlags = libucl.ParserNoTime
func loadVarFile(path string) (map[string]string, error) {
var obj *libucl.Object
parser := libucl.NewParser(libuclParseFlags)
err := parser.AddFile(path)
if err == nil {
obj = parser.Object()
defer obj.Close()
}
defer parser.Close()
// Read the HCL file and prepare for parsing
d, err := ioutil.ReadFile(path)
if err != nil {
return nil, err
return nil, fmt.Errorf(
"Error reading %s: %s", path, err)
}
// Parse it
obj, err := hcl.Parse(string(d))
if err != nil {
return nil, fmt.Errorf(
"Error parsing %s: %s", path, err)
}
var result map[string]string
if err := obj.Decode(&result); err != nil {
if err := hcl.DecodeObject(&result, obj); err != nil {
return nil, err
}

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@ -1,13 +1,15 @@
package main
import (
"fmt"
"io/ioutil"
"os/exec"
"path/filepath"
"github.com/hashicorp/hcl"
"github.com/hashicorp/terraform/plugin"
"github.com/hashicorp/terraform/rpc"
"github.com/hashicorp/terraform/terraform"
"github.com/mitchellh/go-libucl"
"github.com/mitchellh/osext"
)
@ -27,10 +29,6 @@ var BuiltinConfig Config
// ContextOpts are the global ContextOpts we use to initialize the CLI.
var ContextOpts terraform.ContextOpts
// Put the parse flags we use for libucl in a constant so we can get
// equally behaving parsing everywhere.
const libuclParseFlags = libucl.ParserNoTime
func init() {
BuiltinConfig.Providers = map[string]string{
"aws": "terraform-provider-aws",
@ -49,26 +47,23 @@ func init() {
// LoadConfig loads the CLI configuration from ".terraformrc" files.
func LoadConfig(path string) (*Config, error) {
var obj *libucl.Object
// Parse the file and get the root object.
parser := libucl.NewParser(libuclParseFlags)
err := parser.AddFile(path)
if err == nil {
obj = parser.Object()
defer obj.Close()
}
defer parser.Close()
// If there was an error parsing, return now.
// Read the HCL file and prepare for parsing
d, err := ioutil.ReadFile(path)
if err != nil {
return nil, err
return nil, fmt.Errorf(
"Error reading %s: %s", path, err)
}
// Parse it
obj, err := hcl.Parse(string(d))
if err != nil {
return nil, fmt.Errorf(
"Error parsing %s: %s", path, err)
}
// Build up the result
var result Config
if err := obj.Decode(&result); err != nil {
if err := hcl.DecodeObject(&result, obj); err != nil {
return nil, err
}

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@ -1,538 +0,0 @@
package config
import (
"fmt"
"path/filepath"
"github.com/mitchellh/go-libucl"
)
// Put the parse flags we use for libucl in a constant so we can get
// equally behaving parsing everywhere.
const libuclParseFlags = libucl.ParserNoTime
// libuclConfigurable is an implementation of configurable that knows
// how to turn libucl configuration into a *Config object.
type libuclConfigurable struct {
Object *libucl.Object
}
func (t *libuclConfigurable) Close() error {
return t.Object.Close()
}
func (t *libuclConfigurable) Config() (*Config, error) {
validKeys := map[string]struct{}{
"output": struct{}{},
"provider": struct{}{},
"resource": struct{}{},
"variable": struct{}{},
}
type LibuclVariable struct {
Default interface{}
Description string
Fields []string `libucl:",decodedFields"`
}
var rawConfig struct {
Variable map[string]*LibuclVariable
}
if err := t.Object.Decode(&rawConfig); err != nil {
return nil, err
}
// Start building up the actual configuration. We start with
// variables.
// TODO(mitchellh): Make function like loadVariablesLibucl so that
// duplicates aren't overridden
config := new(Config)
if len(rawConfig.Variable) > 0 {
config.Variables = make([]*Variable, 0, len(rawConfig.Variable))
for k, v := range rawConfig.Variable {
// Defaults turn into a slice of map[string]interface{} and
// we need to make sure to convert that down into the
// proper type for Config.
if ms, ok := v.Default.([]map[string]interface{}); ok {
def := make(map[string]interface{})
for _, m := range ms {
for k, v := range m {
def[k] = v
}
}
v.Default = def
}
newVar := &Variable{
Name: k,
Default: v.Default,
Description: v.Description,
}
config.Variables = append(config.Variables, newVar)
}
}
// Build the provider configs
providers := t.Object.Get("provider")
if providers != nil {
var err error
config.ProviderConfigs, err = loadProvidersLibucl(providers)
providers.Close()
if err != nil {
return nil, err
}
}
// Build the resources
resources := t.Object.Get("resource")
if resources != nil {
var err error
config.Resources, err = loadResourcesLibucl(resources)
resources.Close()
if err != nil {
return nil, err
}
}
// Build the outputs
if outputs := t.Object.Get("output"); outputs != nil {
var err error
config.Outputs, err = loadOutputsLibucl(outputs)
outputs.Close()
if err != nil {
return nil, err
}
}
// Check for invalid keys
iter := t.Object.Iterate(true)
defer iter.Close()
for o := iter.Next(); o != nil; o = iter.Next() {
k := o.Key()
o.Close()
if _, ok := validKeys[k]; ok {
continue
}
config.unknownKeys = append(config.unknownKeys, k)
}
return config, nil
}
// loadFileLibucl is a fileLoaderFunc that knows how to read libucl
// files and turn them into libuclConfigurables.
func loadFileLibucl(root string) (configurable, []string, error) {
var obj *libucl.Object = nil
// Parse and store the object. We don't use a defer here so that
// we clear resources right away rather than stack them up all the
// way through our recursive calls.
parser := libucl.NewParser(libuclParseFlags)
err := parser.AddFile(root)
if err == nil {
obj = parser.Object()
defer obj.Close()
}
parser.Close()
// If there was an error, return early
if err != nil {
return nil, nil, err
}
// Start building the result
result := &libuclConfigurable{
Object: obj,
}
// Otherwise, dive in, find the imports.
imports := obj.Get("import")
if imports == nil {
result.Object.Ref()
return result, nil, nil
}
if imports.Type() != libucl.ObjectTypeString {
imports.Close()
return nil, nil, fmt.Errorf(
"Error in %s: all 'import' declarations should be in the format\n"+
"`import \"foo\"` (Got type %s)",
root,
imports.Type())
}
// Gather all the import paths
importPaths := make([]string, 0, imports.Len())
iter := imports.Iterate(false)
for imp := iter.Next(); imp != nil; imp = iter.Next() {
path := imp.ToString()
if !filepath.IsAbs(path) {
// Relative paths are relative to the Terraform file itself
dir := filepath.Dir(root)
path = filepath.Join(dir, path)
}
importPaths = append(importPaths, path)
imp.Close()
}
iter.Close()
imports.Close()
result.Object.Ref()
return result, importPaths, nil
}
// LoadOutputsLibucl recurses into the given libucl object and turns
// it into a mapping of outputs.
func loadOutputsLibucl(o *libucl.Object) ([]*Output, error) {
objects := make(map[string]*libucl.Object)
// Iterate over all the "output" blocks and get the keys along with
// their raw configuration objects. We'll parse those later.
iter := o.Iterate(false)
for o1 := iter.Next(); o1 != nil; o1 = iter.Next() {
iter2 := o1.Iterate(true)
for o2 := iter2.Next(); o2 != nil; o2 = iter2.Next() {
objects[o2.Key()] = o2
defer o2.Close()
}
o1.Close()
iter2.Close()
}
iter.Close()
// If we have none, just return nil
if len(objects) == 0 {
return nil, nil
}
// Go through each object and turn it into an actual result.
result := make([]*Output, 0, len(objects))
for n, o := range objects {
var config map[string]interface{}
if err := o.Decode(&config); err != nil {
return nil, err
}
rawConfig, err := NewRawConfig(config)
if err != nil {
return nil, fmt.Errorf(
"Error reading config for output %s: %s",
n,
err)
}
result = append(result, &Output{
Name: n,
RawConfig: rawConfig,
})
}
return result, nil
}
// LoadProvidersLibucl recurses into the given libucl object and turns
// it into a mapping of provider configs.
func loadProvidersLibucl(o *libucl.Object) ([]*ProviderConfig, error) {
objects := make(map[string]*libucl.Object)
// Iterate over all the "provider" blocks and get the keys along with
// their raw configuration objects. We'll parse those later.
iter := o.Iterate(false)
for o1 := iter.Next(); o1 != nil; o1 = iter.Next() {
iter2 := o1.Iterate(true)
for o2 := iter2.Next(); o2 != nil; o2 = iter2.Next() {
objects[o2.Key()] = o2
defer o2.Close()
}
o1.Close()
iter2.Close()
}
iter.Close()
if len(objects) == 0 {
return nil, nil
}
// Go through each object and turn it into an actual result.
result := make([]*ProviderConfig, 0, len(objects))
for n, o := range objects {
var config map[string]interface{}
if err := o.Decode(&config); err != nil {
return nil, err
}
rawConfig, err := NewRawConfig(config)
if err != nil {
return nil, fmt.Errorf(
"Error reading config for provider config %s: %s",
n,
err)
}
result = append(result, &ProviderConfig{
Name: n,
RawConfig: rawConfig,
})
}
return result, nil
}
// Given a handle to a libucl object, this recurses into the structure
// and pulls out a list of resources.
//
// The resulting resources may not be unique, but each resource
// represents exactly one resource definition in the libucl configuration.
// We leave it up to another pass to merge them together.
func loadResourcesLibucl(o *libucl.Object) ([]*Resource, error) {
var allTypes []*libucl.Object
// Libucl object iteration is really nasty. Below is likely to make
// no sense to anyone approaching this code. Luckily, it is very heavily
// tested. If working on a bug fix or feature, we recommend writing a
// test first then doing whatever you want to the code below. If you
// break it, the tests will catch it. Likewise, if you change this,
// MAKE SURE you write a test for your change, because its fairly impossible
// to reason about this mess.
//
// Functionally, what the code does below is get the libucl.Objects
// for all the TYPES, such as "aws_security_group".
iter := o.Iterate(false)
for o1 := iter.Next(); o1 != nil; o1 = iter.Next() {
// Iterate the inner to get the list of types
iter2 := o1.Iterate(true)
for o2 := iter2.Next(); o2 != nil; o2 = iter2.Next() {
// Iterate all of this type to get _all_ the types
iter3 := o2.Iterate(false)
for o3 := iter3.Next(); o3 != nil; o3 = iter3.Next() {
allTypes = append(allTypes, o3)
}
o2.Close()
iter3.Close()
}
o1.Close()
iter2.Close()
}
iter.Close()
// Where all the results will go
var result []*Resource
// Now go over all the types and their children in order to get
// all of the actual resources.
for _, t := range allTypes {
// Release the resources for this raw type since we don't need it.
// Note that this makes it unsafe now to use allTypes again.
defer t.Close()
iter := t.Iterate(true)
defer iter.Close()
for r := iter.Next(); r != nil; r = iter.Next() {
defer r.Close()
var config map[string]interface{}
if err := r.Decode(&config); err != nil {
return nil, fmt.Errorf(
"Error reading config for %s[%s]: %s",
t.Key(),
r.Key(),
err)
}
// Remove the fields we handle specially
delete(config, "connection")
delete(config, "count")
delete(config, "depends_on")
delete(config, "provisioner")
rawConfig, err := NewRawConfig(config)
if err != nil {
return nil, fmt.Errorf(
"Error reading config for %s[%s]: %s",
t.Key(),
r.Key(),
err)
}
// If we have a count, then figure it out
var count int = 1
if o := r.Get("count"); o != nil {
err = o.Decode(&count)
o.Close()
if err != nil {
return nil, fmt.Errorf(
"Error parsing count for %s[%s]: %s",
t.Key(),
r.Key(),
err)
}
}
// If we have connection info, then parse those out
var connInfo map[string]interface{}
if conn := r.Get("connection"); conn != nil {
var err error
connInfo, err = loadConnInfoLibucl(conn)
conn.Close()
if err != nil {
return nil, fmt.Errorf(
"Error reading connection info for %s[%s]: %s",
t.Key(),
r.Key(),
err)
}
}
// If we have depends fields, then add those in
var dependsOn []string
if deps := r.Get("depends_on"); deps != nil {
err := deps.Decode(&dependsOn)
deps.Close()
if err != nil {
return nil, fmt.Errorf(
"Error reading depends_on for %s[%s]: %s",
t.Key(),
r.Key(),
err)
}
}
// If we have provisioners, then parse those out
var provisioners []*Provisioner
if po := r.Get("provisioner"); po != nil {
var err error
provisioners, err = loadProvisionersLibucl(po, connInfo)
po.Close()
if err != nil {
return nil, fmt.Errorf(
"Error reading provisioners for %s[%s]: %s",
t.Key(),
r.Key(),
err)
}
}
result = append(result, &Resource{
Name: r.Key(),
Type: t.Key(),
Count: count,
RawConfig: rawConfig,
Provisioners: provisioners,
DependsOn: dependsOn,
})
}
}
return result, nil
}
func loadProvisionersLibucl(o *libucl.Object, connInfo map[string]interface{}) ([]*Provisioner, error) {
pos := make([]*libucl.Object, 0, int(o.Len()))
// Accumulate all the actual provisioner configuration objects. We
// have to iterate twice here:
//
// 1. The first iteration is of the list of `provisioner` blocks.
// 2. The second iteration is of the dictionary within the
// provisioner which will have only one element which is the
// type of provisioner to use along with tis config.
//
// In JSON it looks kind of like this:
//
// [
// {
// "shell": {
// ...
// }
// }
// ]
//
iter := o.Iterate(false)
for o1 := iter.Next(); o1 != nil; o1 = iter.Next() {
iter2 := o1.Iterate(true)
for o2 := iter2.Next(); o2 != nil; o2 = iter2.Next() {
pos = append(pos, o2)
}
o1.Close()
iter2.Close()
}
iter.Close()
result := make([]*Provisioner, 0, len(pos))
for _, po := range pos {
defer po.Close()
var config map[string]interface{}
if err := po.Decode(&config); err != nil {
return nil, err
}
// Delete the "connection" section, handle separately
delete(config, "connection")
rawConfig, err := NewRawConfig(config)
if err != nil {
return nil, err
}
// Check if we have a provisioner-level connection
// block that overrides the resource-level
var subConnInfo map[string]interface{}
if conn := po.Get("connection"); conn != nil {
var err error
subConnInfo, err = loadConnInfoLibucl(conn)
conn.Close()
if err != nil {
return nil, err
}
}
// Inherit from the resource connInfo any keys
// that are not explicitly overridden.
if connInfo != nil && subConnInfo != nil {
for k, v := range connInfo {
if _, ok := subConnInfo[k]; !ok {
subConnInfo[k] = v
}
}
} else if subConnInfo == nil {
subConnInfo = connInfo
}
// Parse the connInfo
connRaw, err := NewRawConfig(subConnInfo)
if err != nil {
return nil, err
}
result = append(result, &Provisioner{
Type: po.Key(),
RawConfig: rawConfig,
ConnInfo: connRaw,
})
}
return result, nil
}
func loadConnInfoLibucl(o *libucl.Object) (map[string]interface{}, error) {
var config map[string]interface{}
if err := o.Decode(&config); err != nil {
return nil, err
}
return config, nil
}

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@ -1,14 +0,0 @@
package config
import (
"io"
"testing"
)
func TestLibuclConfigurableCloser(t *testing.T) {
var _ io.Closer = new(libuclConfigurable)
}
func TestLibuclConfigurableConfigurable(t *testing.T) {
var _ configurable = new(libuclConfigurable)
}

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@ -1,4 +1,4 @@
providers {
"aws" = "foo"
"do" = "bar"
aws = "foo"
do = "bar"
}