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terraform-provider-melange/internal/provider/config_data_source.go
Jason Hall 3321dca573
just drop everything we don't need; not great but it works
Signed-off-by: Jason Hall <jason@chainguard.dev>
2023-09-30 21:03:57 -04:00

121 lines
3.9 KiB
Go

// Copyright (c) HashiCorp, Inc.
// SPDX-License-Identifier: MPL-2.0
package provider
import (
"context"
"crypto/sha256"
"encoding/hex"
apkotypes "chainguard.dev/apko/pkg/build/types"
"github.com/chainguard-dev/terraform-provider-apko/reflect"
"github.com/hashicorp/terraform-plugin-framework/datasource"
"github.com/hashicorp/terraform-plugin-framework/datasource/schema"
"github.com/hashicorp/terraform-plugin-framework/types"
"github.com/hashicorp/terraform-plugin-framework/types/basetypes"
"gopkg.in/yaml.v2"
"k8s.io/apimachinery/pkg/util/sets"
)
var configSchema basetypes.ObjectType
func init() {
sch, err := reflect.GenerateType(Configuration{})
if err != nil {
panic(err)
}
configSchema = sch.(basetypes.ObjectType)
}
// Ensure provider defined types fully satisfy framework interfaces.
var _ datasource.DataSource = &ConfigDataSource{}
func NewConfigDataSource() datasource.DataSource {
return &ConfigDataSource{}
}
// ConfigDataSource defines the data source implementation.
type ConfigDataSource struct {
popts ProviderOpts
}
// ConfigDataSourceModel describes the data source data model.
type ConfigDataSourceModel struct {
ConfigContents types.String `tfsdk:"config_contents"`
Config types.Object `tfsdk:"config"`
Id types.String `tfsdk:"id"`
}
func (d *ConfigDataSource) Metadata(ctx context.Context, req datasource.MetadataRequest, resp *datasource.MetadataResponse) {
resp.TypeName = req.ProviderTypeName + "_config"
}
func (d *ConfigDataSource) Schema(ctx context.Context, req datasource.SchemaRequest, resp *datasource.SchemaResponse) {
resp.Schema = schema.Schema{
// This description is used by the documentation generator and the language server.
MarkdownDescription: "Config data source",
Attributes: map[string]schema.Attribute{
"config_contents": schema.StringAttribute{
MarkdownDescription: "The raw contents of the melange configuration.",
Optional: true,
},
"config": schema.ObjectAttribute{
MarkdownDescription: "The parsed structure of the melange configuration.",
Computed: true,
AttributeTypes: configSchema.AttrTypes,
},
"id": schema.StringAttribute{
MarkdownDescription: "Config identifier",
Computed: true,
},
},
}
}
func (d *ConfigDataSource) Configure(ctx context.Context, req datasource.ConfigureRequest, resp *datasource.ConfigureResponse) {
// Prevent panic if the provider has not been configured.
if req.ProviderData == nil {
return
}
popts, ok := req.ProviderData.(*ProviderOpts)
if !ok || popts == nil {
resp.Diagnostics.AddError("Client Error", "invalid provider data")
return
}
d.popts = *popts
}
func (d *ConfigDataSource) Read(ctx context.Context, req datasource.ReadRequest, resp *datasource.ReadResponse) {
var data ConfigDataSourceModel
resp.Diagnostics.Append(req.Config.Get(ctx, &data)...)
if resp.Diagnostics.HasError() {
return
}
var cfg Configuration
if err := yaml.Unmarshal([]byte(data.ConfigContents.ValueString()), &cfg); err != nil {
resp.Diagnostics.AddError("Unable to parse melange configuration", err.Error())
return
}
// Append any provider-specified repositories and keys, if specified.
cfg.Environment.Contents.Repositories = sets.List(sets.New(cfg.Environment.Contents.Repositories...).Insert(d.popts.repositories...))
cfg.Environment.Contents.Keyring = sets.List(sets.New(cfg.Environment.Contents.Keyring...).Insert(d.popts.keyring...))
cfg.Environment.Archs = apkotypes.ParseArchitectures(d.popts.archs)
ov, diags := reflect.GenerateValue(cfg)
resp.Diagnostics = append(resp.Diagnostics, diags...)
if diags.HasError() {
return
}
data.Config = ov.(basetypes.ObjectValue)
hash := sha256.Sum256([]byte(data.ConfigContents.ValueString()))
data.Id = types.StringValue(hex.EncodeToString(hash[:]))
// Save data into Terraform state
resp.Diagnostics.Append(resp.State.Set(ctx, &data)...)
}