Add CLI reports, snapshot format and duplicate detection

2026-10-02 08:02:32 +01:00
parent 8233ddcfba
commit 900931ae26
9 changed files with 1734 additions and 0 deletions
@@ -0,0 +1,68 @@
+package app
+
+import (
+	"context"
+	"errors"
+	"fmt"
+
+	"github.com/andydixon/mapsize/internal/duplicate"
+	"github.com/andydixon/mapsize/internal/inventory"
+	"github.com/andydixon/mapsize/internal/snapshot"
+	"github.com/andydixon/mapsize/internal/textutil"
+)
+
+func runTUI(*Config) error {
+	return errors.New("the interactive UI is not built yet; use --no-ui, --top, --json or --csv")
+}
+
+func loadSnapshot(path string) (*inventory.Tree, error) { return snapshot.LoadFile(path) }
+
+func saveSnapshot(t *inventory.Tree, path string) error { return snapshot.SaveFile(path, t) }
+
+func runCompare(cfg *Config) error {
+	old, err := snapshot.LoadFile(cfg.Compare[0])
+	if err != nil {
+		return fmt.Errorf("%s: %w", cfg.Compare[0], err)
+	}
+	nw, err := snapshot.LoadFile(cfg.Compare[1])
+	if err != nil {
+		return fmt.Errorf("%s: %w", cfg.Compare[1], err)
+	}
+	d := snapshot.Compare(old, nw)
+	k := cfg.Top
+	if k <= 0 {
+		k = 30
+	}
+	out := cfg.Stdout
+	ro, rn := old.Node(0), nw.Node(0)
+	fmt.Fprintf(out, "%s → %s\n", textutil.Sanitize(old.Stats.FromSnapshot), textutil.Sanitize(nw.Stats.FromSnapshot))
+	fmt.Fprintf(out, "Total %s → %s (%s)\n\n", textutil.Size(ro.Total(cfg.SizeMode)), textutil.Size(rn.Total(cfg.SizeMode)),
+		textutil.SignedSize(rn.Total(cfg.SizeMode)-ro.Total(cfg.SizeMode)))
+	for _, c := range d.Changes(k, cfg.SizeMode) {
+		fmt.Fprintf(out, "%-10s %14s  %s\n", c.Status, textutil.SignedSize(c.Delta), textutil.Sanitize(c.Path))
+	}
+	return nil
+}
+
+func runDuplicates(ctx context.Context, cfg *Config, t *inventory.Tree) error {
+	// The caller holds RLock; Find takes its own read lock, which is fine
+	// for a RWMutex only if no writer is waiting — the scan is finished.
+	var f duplicate.Finder
+	groups, err := f.Find(ctx, t, duplicate.Options{MinSize: 1})
+	if err != nil {
+		return err
+	}
+	out := cfg.Stdout
+	var wasted int64
+	for _, g := range groups {
+		wasted += g.Wasted()
+		fmt.Fprintf(out, "%s × %d  (sha256 %x…)\n", textutil.Size(g.Size), len(g.Files), g.Hash[:6])
+		for _, id := range g.Files {
+			fmt.Fprintf(out, "    %s\n", textutil.Sanitize(t.Path(id)))
+		}
+	}
+	p := f.Progress()
+	fmt.Fprintf(out, "\n%d verified duplicate groups, %s reclaimable (%d candidates by size, %d unreadable/changed)\n\n",
+		len(groups), textutil.Size(wasted), p.Candidates, p.Skipped)
+	return nil
+}