1 files changed, 27 insertions, 0 deletions
diff --git a/bin/project-ctags b/bin/project-ctags
index 47b1fe5..373a712 100755
--- a/bin/project-ctags
+++ b/bin/project-ctags
@@ -180,9 +180,36 @@ def git_project_files(root):
     return files
 
 
+def fossil_project_files(root):
+    """List managed and unignored files of a Fossil checkout."""
+    fossil = shutil.which("fossil")
+    if fossil is None:
+        return None
+    files = []
+    for command in (["ls"], ["extras"]):
+        result = subprocess.run(
+            [fossil, *command],
+            cwd=root,
+            stdout=subprocess.PIPE,
+            stderr=subprocess.DEVNULL,
+            check=False,
+        )
+        if result.returncode != 0:
+            return None
+        for name in result.stdout.splitlines():
+            if not name:
+                continue
+            path = root / os.fsdecode(name)
+            if path.is_file():
+                files.append(path.resolve())
+    return files
+
+
 def project_files(root, output):
     files = git_project_files(root)
     if files is None:
+        files = fossil_project_files(root)
+    if files is None:
         files = walk_files(root)
     return sorted(path for path in files if path != output)