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-rw-r--r--internal/blog/index.go32
-rw-r--r--internal/blog/s3.go172
2 files changed, 180 insertions, 24 deletions
diff --git a/internal/blog/index.go b/internal/blog/index.go
new file mode 100644
index 0000000..861a90e
--- /dev/null
+++ b/internal/blog/index.go
@@ -0,0 +1,32 @@
+package blog
+
+import "time"
+
+const IndexFileName = "index.json"
+
+const IndexSchemaVersion = 1
+
+type IndexEntry struct {
+ Link string `json:"link"`
+ ModifiedTime time.Time `json:"modifiedTime"`
+ Title string `json:"title"`
+ ShortDescription string `json:"shortDescription"`
+ ActionDate string `json:"actionDate"`
+ PublishedTime time.Time `json:"publishedTime"`
+ Thumbnail string `json:"thumbnail"`
+ Tags []string `json:"tags"`
+ Geolocation string `json:"geolocation"`
+ Medley string `json:"medley,omitempty"`
+ MedleyPart int `json:"medleyPart,omitempty"`
+}
+
+type IndexCategory struct {
+ GeneratedAt time.Time `json:"generatedAt"`
+ Pages []IndexEntry `json:"pages"`
+}
+
+type Index struct {
+ SchemaVersion int `json:"schemaVersion"`
+ GeneratedAt time.Time `json:"generatedAt"`
+ Categories map[string]IndexCategory `json:"categories"`
+}
diff --git a/internal/blog/s3.go b/internal/blog/s3.go
index 86a6463..06630ef 100644
--- a/internal/blog/s3.go
+++ b/internal/blog/s3.go
@@ -2,10 +2,15 @@ package blog
import (
"context"
+ "encoding/json"
+ "errors"
"fmt"
"io"
+ "log/slog"
+ "net/url"
"slices"
"strings"
+ "sync"
"time"
"github.com/SayaAndy/saya-today-web/config"
@@ -14,8 +19,11 @@ import (
awsconfig "github.com/aws/aws-sdk-go-v2/config"
"github.com/aws/aws-sdk-go-v2/credentials"
"github.com/aws/aws-sdk-go-v2/service/s3"
+ s3types "github.com/aws/aws-sdk-go-v2/service/s3/types"
)
+const s3ScanConcurrency = 32
+
type S3Client struct {
prefix string
bucketName string
@@ -58,79 +66,195 @@ func NewS3Client(cfg *config.StorageConfig) (Client, error) {
}
func (c *S3Client) Scan(prefix string) ([]*Page, error) {
- pages := []*Page{}
+ pages, err := c.scanFromIndex(prefix)
+ if err == nil {
+ return pages, nil
+ }
- fullPrefix := c.prefix + prefix
- input := &s3.ListObjectsV2Input{
+ var nsk *s3types.NoSuchKey
+ if !errors.As(err, &nsk) {
+ return nil, err
+ }
+
+ slog.Warn("index.json missing, falling back to listing", slog.String("prefix", c.prefix))
+ return c.scanByListing(prefix)
+}
+
+func (c *S3Client) scanFromIndex(prefix string) ([]*Page, error) {
+ out, err := c.s3cl.GetObject(context.Background(), &s3.GetObjectInput{
Bucket: aws.String(c.bucketName),
- Prefix: aws.String(fullPrefix),
+ Key: aws.String(IndexFileName),
+ })
+ if err != nil {
+ return nil, fmt.Errorf("get index.json: %w", err)
+ }
+ defer out.Body.Close()
+
+ raw, err := io.ReadAll(out.Body)
+ if err != nil {
+ return nil, fmt.Errorf("read index.json: %w", err)
+ }
+
+ var idx Index
+ if err := json.Unmarshal(raw, &idx); err != nil {
+ return nil, fmt.Errorf("unmarshal index.json: %w", err)
+ }
+
+ wantLang := ""
+ if i := strings.Index(prefix, "/"); i > 0 {
+ wantLang = prefix[:i]
+ }
+
+ fullPrefix := c.prefix + prefix
+ pages := make([]*Page, 0)
+ for catKey, cat := range idx.Categories {
+ lang, ok := strings.CutPrefix(catKey, c.prefix)
+ if !ok {
+ continue
+ }
+ if wantLang != "" && wantLang != lang {
+ continue
+ }
+ for _, e := range cat.Pages {
+ if !strings.HasPrefix(e.Link, fullPrefix) {
+ continue
+ }
+ linkParts := strings.Split(e.Link, "/")
+ nameParts := strings.Split(linkParts[len(linkParts)-1], ".")
+ fileName := strings.Join(nameParts[:len(nameParts)-1], ".")
+ pages = append(pages, &Page{
+ Link: e.Link,
+ FileName: fileName,
+ Lang: lang,
+ ModifiedTime: e.ModifiedTime,
+ Metadata: &frontmatter.Metadata{
+ Title: e.Title,
+ ShortDescription: e.ShortDescription,
+ ActionDate: e.ActionDate,
+ PublishedTime: e.PublishedTime,
+ Thumbnail: e.Thumbnail,
+ Tags: e.Tags,
+ Geolocation: e.Geolocation,
+ Medley: e.Medley,
+ MedleyPart: e.MedleyPart,
+ },
+ })
+ }
}
+ return pages, nil
+}
- paginator := s3.NewListObjectsV2Paginator(c.s3cl, input)
+func (c *S3Client) scanByListing(prefix string) ([]*Page, error) {
+ fullPrefix := c.prefix + prefix
+
+ type candidate struct {
+ key string
+ lastModified time.Time
+ }
+ var candidates []candidate
+ paginator := s3.NewListObjectsV2Paginator(c.s3cl, &s3.ListObjectsV2Input{
+ Bucket: aws.String(c.bucketName),
+ Prefix: aws.String(fullPrefix),
+ })
for paginator.HasMorePages() {
output, err := paginator.NextPage(context.Background())
if err != nil {
return nil, fmt.Errorf("list S3 objects: %w", err)
}
-
for _, obj := range output.Contents {
key := aws.ToString(obj.Key)
-
if !strings.HasSuffix(key, ".md") {
continue
}
+ candidates = append(candidates, candidate{key, aws.ToTime(obj.LastModified)})
+ }
+ }
+
+ pages := make([]*Page, len(candidates))
+ sem := make(chan struct{}, s3ScanConcurrency)
+ var wg sync.WaitGroup
+ var firstErr error
+ var errMu sync.Mutex
+
+ for i, cand := range candidates {
+ sem <- struct{}{}
+ wg.Go(func() {
+ defer func() { <-sem }()
head, err := c.s3cl.HeadObject(context.Background(), &s3.HeadObjectInput{
Bucket: aws.String(c.bucketName),
- Key: aws.String(key),
+ Key: aws.String(cand.key),
})
if err != nil {
- return nil, fmt.Errorf("head S3 object %s: %w", key, err)
+ errMu.Lock()
+ if firstErr == nil {
+ firstErr = fmt.Errorf("head S3 object %s: %w", cand.key, err)
+ }
+ errMu.Unlock()
+ return
}
if head.ContentType == nil || !strings.Contains(*head.ContentType, "text/markdown") {
- continue
+ return
}
-
meta := head.Metadata
if meta["title"] == "" {
- continue
+ return
}
publishedTime, err := time.Parse(time.RFC3339, meta["published-time"])
if err != nil {
- return nil, fmt.Errorf("failed to parse published time metadata field: %w", err)
+ errMu.Lock()
+ if firstErr == nil {
+ firstErr = fmt.Errorf("failed to parse published time metadata field: %w", err)
+ }
+ errMu.Unlock()
+ return
}
- linkParts := strings.Split(key, "/")
+ linkParts := strings.Split(cand.key, "/")
nameParts := strings.Split(linkParts[len(linkParts)-1], ".")
fileName := strings.Join(nameParts[:len(nameParts)-1], ".")
+ lang, _ := strings.CutPrefix(linkParts[0], c.prefix)
tags := strings.Split(meta["tags"], ",")
slices.Sort(tags)
- lang, _ := strings.CutPrefix(linkParts[0], c.prefix)
+ title, _ := url.QueryUnescape(meta["title"])
+ shortDescription, _ := url.QueryUnescape(meta["short-description"])
+ thumbnail, _ := url.QueryUnescape(meta["thumbnail"])
- pages = append(pages, &Page{
- Link: key,
+ pages[i] = &Page{
+ Link: cand.key,
FileName: fileName,
Lang: lang,
- ModifiedTime: aws.ToTime(obj.LastModified),
+ ModifiedTime: cand.lastModified,
Metadata: &frontmatter.Metadata{
- Title: meta["title"],
- ShortDescription: meta["short-description"],
+ Title: title,
+ ShortDescription: shortDescription,
ActionDate: meta["action-date"],
PublishedTime: publishedTime,
- Thumbnail: meta["thumbnail"],
+ Thumbnail: thumbnail,
Tags: tags,
Geolocation: meta["geolocation"],
},
- })
- }
+ }
+ })
}
+ wg.Wait()
- return pages, nil
+ if firstErr != nil {
+ return nil, firstErr
+ }
+
+ out := pages[:0]
+ for _, p := range pages {
+ if p != nil {
+ out = append(out, p)
+ }
+ }
+ return out, nil
}
func (c *S3Client) ReadAll(path string) ([]byte, error) {
generated by cgitext v1.3.1+13 (git 2.54.0) at 2026-08-20 14:19:08 +0000