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fix: creating and generated writes go through the brain root (#188, #158 part A) (#189)
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New brainfs PutRegular (create or replace), CreateRegular (create only), AppendRegular, Remove and RealParent: missing parents created one component at a time through the root, every existing component a real directory, new files created with O_EXCL and confirmed before writing. brain_write, promote/reject (O_EXCL create, source kept on refusal), StampProvenanceFile, BuildWingIndex, RebuildIndex, AppendLog and the tunnel candidate log use them; provenance.ApplyFile removed.

Fixes #188. Refs #158. Adversarial review: BLOCKED, BLOCKED, PASS.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Co-authored-by: Mathias <mthbqv@gmail.com>
This commit was merged in pull request #189.
This commit is contained in:
mathias
2026-10-05 21:25:54 +00:00
committed by mathias
co-authored by Claude Opus 5.5
parent bd989f887f
commit f4636c7ef0
15 changed files with 645 additions and 82 deletions
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ingestion/internal/brain/tunnel.go
+12 -25
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@@ -5,7 +5,6 @@ import (
"errors"
"fmt"
"io/fs"
"os"
"path"
"path/filepath"
"strings"
@@ -176,35 +175,23 @@ func logFuzzyCandidates(brainDir, sourcePath string, cs []TunnelCandidate) error
if len(cs) == 0 {
return nil
}
rawDir := filepath.Join(brainDir, "raw")
if err := os.MkdirAll(rawDir, 0o755); err != nil {
return err
}
stamp := time.Now().UTC().Format("2006-01-02")
path := filepath.Join(rawDir, "tunnel-candidates-"+stamp+".md")
existed := fileExists(path)
f, err := os.OpenFile(path, os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0o644)
// Appended through the brain root, never through a symlinked raw/ or
// log file (hyperguild#158).
bfs, err := brainfs.Open(brainDir)
if err != nil {
return err
return fmt.Errorf("open brain: %w", err)
}
defer func() { _ = f.Close() }()
if !existed {
if _, err := f.WriteString("# Tunnel candidates " + stamp + "\n\nFuzzy cross-wing matches surfaced by AutoTunnel. Review and promote to a tunnel via `brain_tunnel` if relevant.\n\n"); err != nil {
return err
}
defer func() { _ = bfs.Close() }()
stamp := time.Now().UTC().Format("2006-01-02")
rel := "raw/tunnel-candidates-" + stamp + ".md"
var buf strings.Builder
if _, err := bfs.Lstat(rel); errors.Is(err, fs.ErrNotExist) {
buf.WriteString("# Tunnel candidates " + stamp + "\n\nFuzzy cross-wing matches surfaced by AutoTunnel. Review and promote to a tunnel via `brain_tunnel` if relevant.\n\n")
}
for _, c := range cs {
line := fmt.Sprintf("- `%s` ↔ `%s` (term: %q)\n", sourcePath, c.TargetPath, c.MatchedTerm)
if _, err := f.WriteString(line); err != nil {
return err
}
fmt.Fprintf(&buf, "- `%s` ↔ `%s` (term: %q)\n", sourcePath, c.TargetPath, c.MatchedTerm)
}
return nil
}
func fileExists(p string) bool {
_, err := os.Stat(p)
return err == nil
return bfs.AppendRegular(rel, []byte(buf.String()))
}
// WriteTunnel appends a bidirectional wikilink between sourcePath and