agent harness initialize repo

agent-with-tools/tools/filesystem.py

@@ -0,0 +1,57 @@
+import glob as glob_module
+import re
+from pathlib import Path
+
+
+def read_file(path: str, offset: int = 1, limit: int = 200) -> str:
+    """Read lines from a file, with optional offset and limit."""
+    p = Path(path)
+    if not p.exists():
+        return f"Error: file not found: {path}"
+    lines = p.read_text(errors="replace").splitlines()
+    selected = lines[offset - 1: offset - 1 + limit]
+    return "\n".join(f"{offset + i}: {line}" for i, line in enumerate(selected))
+
+
+def glob_files(pattern: str, path: str = ".") -> str:
+    """Find files matching a glob pattern inside a directory."""
+    matches = glob_module.glob(f"{path}/**/{pattern}", recursive=True)
+    matches += glob_module.glob(f"{path}/{pattern}")
+    unique = sorted(set(matches))
+    return "\n".join(unique) if unique else "(no matches)"
+
+
+def grep(pattern: str, path: str = ".", include: str = "*") -> str:
+    """Search file contents for a regex pattern, optionally filtering by filename glob."""
+    results = []
+    for filepath in glob_module.glob(f"{path}/**/{include}", recursive=True):
+        fp = Path(filepath)
+        if not fp.is_file():
+            continue
+        try:
+            for i, line in enumerate(fp.read_text(errors="replace").splitlines(), 1):
+                if re.search(pattern, line):
+                    results.append(f"{filepath}:{i}: {line}")
+        except OSError:
+            pass
+    return "\n".join(results) if results else "(no matches)"
+
+
+def write_file(path: str, content: str) -> str:
+    """Write content to a file, creating it if it does not exist."""
+    p = Path(path)
+    p.parent.mkdir(parents=True, exist_ok=True)
+    p.write_text(content)
+    return f"Wrote {len(content)} bytes to {path}"
+
+
+def edit_file(path: str, old_string: str, new_string: str) -> str:
+    """Replace the first occurrence of old_string with new_string in a file."""
+    p = Path(path)
+    if not p.exists():
+        return f"Error: file not found: {path}"
+    original = p.read_text()
+    if old_string not in original:
+        return f"Error: string not found in {path}"
+    p.write_text(original.replace(old_string, new_string, 1))
+    return f"Edited {path}"