esync

commit f1b312c573720555f8aaa74f82cb84215837a66b
parent a4c9505fc628315db5c7c543bf1d9e51f31c1fbc
Author: Erik Loualiche <eloualic@umn.edu>
Date:   Sun, 22 Mar 2026 10:30:59 -0500

feat: esync check reports broken symlinks with their dangling targets

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Diffstat:
M
cmd/check.go
 | 
20
++++++++++++++++++++

1 file changed, 20 insertions(+), 0 deletions(-)
diff --git a/cmd/check.go b/cmd/check.go
@@ -19,6 +19,7 @@ import (
 var (
 	greenHeader  = lipgloss.NewStyle().Bold(true).Foreground(lipgloss.Color("10"))
 	yellowHeader = lipgloss.NewStyle().Bold(true).Foreground(lipgloss.Color("11"))
+	redHeader    = lipgloss.NewStyle().Bold(true).Foreground(lipgloss.Color("9"))
 	dimText      = lipgloss.NewStyle().Foreground(lipgloss.Color("8"))
 )
 
@@ -87,6 +88,7 @@ func printPreview(cfg *config.Config) error {
 
 	var included []fileEntry
 	var excluded []fileEntry
+	var brokenLinks []fileEntry
 	var includedSize int64
 
 	err := filepath.Walk(localDir, func(path string, info os.FileInfo, err error) error {
@@ -104,6 +106,15 @@ func printPreview(cfg *config.Config) error {
 			return nil
 		}
 
+		// Detect broken symlinks (Walk uses Lstat, so symlinks show up with err==nil)
+		if info.Mode()&os.ModeSymlink != 0 {
+			if _, statErr := os.Stat(path); statErr != nil {
+				target, _ := os.Readlink(path)
+				brokenLinks = append(brokenLinks, fileEntry{path: rel, rule: target})
+			}
+			return nil // skip all symlinks from included/excluded lists
+		}
+
 		// Check against ignore patterns
 		for _, pattern := range patterns {
 			if matchesIgnorePattern(rel, info, pattern) {
@@ -168,6 +179,15 @@ func printPreview(cfg *config.Config) error {
 	}
 	fmt.Println()
 
+	// --- Broken symlinks ---
+	if len(brokenLinks) > 0 {
+		fmt.Println(redHeader.Render("  Broken symlinks:"))
+		for _, f := range brokenLinks {
+			fmt.Printf("    %-40s %s\n", f.path, dimText.Render("-> "+f.rule))
+		}
+		fmt.Println()
+	}
+
 	// --- Totals ---
 	totals := fmt.Sprintf("  %d files included (%s) | %d excluded",
 		len(included), formatSize(includedSize), len(excluded))