Files
narratio/internal/app/config_loader.go

134 lines
4.2 KiB
Go

package app
import (
"context"
"fmt"
"os"
"path/filepath"
"strings"
"gitea.maximumdirect.net/eric/narratio/internal/adapters/storage"
"gitea.maximumdirect.net/eric/narratio/internal/artifacts"
"gitea.maximumdirect.net/eric/narratio/internal/config"
)
func loadCommandConfig(ctx context.Context, pipelineFlag, campaignFlag, sessionFlag string, sessionOpts config.SessionLoadOptions) (*config.Config, error) {
resolvedPipelinePath, err := resolvePipelineConfigPath(pipelineFlag)
if err != nil {
return nil, err
}
resolvedCampaignPath, err := resolveCampaignConfigPath(campaignFlag)
if err != nil {
return nil, err
}
if explicitSession := strings.TrimSpace(sessionFlag); explicitSession != "" {
return config.LoadWithSessionOptions(resolvedPipelinePath, resolvedCampaignPath, explicitSession, sessionOpts)
}
discoveredSession, err := discoverSessionConfigPathWithCandidates(config.DefaultSessionConfigSearchPaths)
if err != nil {
return nil, err
}
if discoveredSession.Path != "" {
return config.LoadWithSessionOptions(resolvedPipelinePath, resolvedCampaignPath, discoveredSession.Path, sessionOpts)
}
pipelineCfg, err := config.LoadPipeline(resolvedPipelinePath)
if err != nil {
return nil, err
}
campaignCfg, err := config.LoadCampaign(resolvedCampaignPath)
if err != nil {
return nil, err
}
sessionID := strings.TrimSpace(sessionOpts.SessionID)
if sessionID == "" {
return nil, missingSessionConfigError(discoveredSession.Searched, "remote session loading requires --session-id")
}
sessionPrefix := artifacts.S3SessionPrefix(pipelineCfg.Storage.S3.RootPrefix, campaignCfg.Campaign, sessionID)
remoteKey := artifacts.S3SessionConfigKey(sessionPrefix)
partialCfg := &config.Config{
Pipeline: pipelineCfg,
Campaign: campaignCfg,
PipelinePath: resolvedPipelinePath,
CampaignPath: resolvedCampaignPath,
}
store, err := newCommandObjectStore(ctx, partialCfg, nil)
if err != nil {
return nil, missingSessionConfigError(discoveredSession.Searched, fmt.Sprintf("remote session %q unavailable: %v", remoteKey, err))
}
sessionInfo, err := findRemoteSessionConfig(ctx, store, sessionPrefix, remoteKey)
if err != nil {
return nil, missingSessionConfigError(discoveredSession.Searched, err.Error())
}
sessionTempPath, err := downloadRemoteSessionConfig(ctx, store, remoteKey)
if err != nil {
return nil, missingSessionConfigError(discoveredSession.Searched, fmt.Sprintf("remote session %q download failed: %v", remoteKey, err))
}
sessionBytes, err := os.ReadFile(sessionTempPath)
if err != nil {
return nil, fmt.Errorf("read downloaded remote session %q: %w", sessionTempPath, err)
}
sessionCfg, err := config.LoadSessionBytesWithOptions("s3://"+s3BucketName(pipelineCfg)+"/"+remoteKey, sessionBytes, sessionOpts)
if err != nil {
return nil, err
}
return config.Resolve(
resolvedPipelinePath,
pipelineCfg,
resolvedCampaignPath,
campaignCfg,
sessionTempPath,
sessionCfg,
config.SessionSource{
Source: "session_config.s3",
LocalPath: sessionTempPath,
S3Bucket: s3BucketName(pipelineCfg),
S3Key: remoteKey,
S3Size: sessionInfo.Size,
S3ETag: sessionInfo.ETag,
SpoolPath: sessionTempPath,
},
)
}
func findRemoteSessionConfig(ctx context.Context, store storage.ObjectStore, sessionPrefix, remoteKey string) (storage.ObjectInfo, error) {
objects, err := store.List(ctx, sessionPrefix)
if err != nil {
return storage.ObjectInfo{}, fmt.Errorf("remote session %q list failed: %w", remoteKey, err)
}
for _, obj := range objects {
if obj.Key == remoteKey {
return obj, nil
}
}
return storage.ObjectInfo{}, fmt.Errorf("remote session %q not found", remoteKey)
}
func downloadRemoteSessionConfig(ctx context.Context, store storage.ObjectStore, remoteKey string) (string, error) {
f, err := os.CreateTemp("", "narratio-session-*.yml")
if err != nil {
return "", fmt.Errorf("create temp file: %w", err)
}
path := f.Name()
if err := f.Close(); err != nil {
return "", fmt.Errorf("close temp file %q: %w", path, err)
}
if err := store.Download(ctx, remoteKey, path); err != nil {
return "", err
}
return filepath.Clean(path), nil
}
func s3BucketName(cfg *config.PipelineConfig) string {
if cfg == nil || cfg.Storage.S3 == nil {
return ""
}
return strings.TrimSpace(cfg.Storage.S3.Bucket)
}