128 lines
3.9 KiB
Python
128 lines
3.9 KiB
Python
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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import sys
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from pathlib import Path
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if len(sys.argv) < 2:
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print("Invalid usage of header_guards.py, it should be called with a path to one or multiple files.")
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sys.exit(1)
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HEADER_CHECK_OFFSET = 30
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HEADER_BEGIN_OFFSET = 31
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HEADER_END_OFFSET = -1
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changed = []
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invalid = []
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for file in sys.argv[1:]:
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with open(file, "rt", encoding="utf-8", newline="\n") as f:
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lines = f.readlines()
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if len(lines) <= HEADER_BEGIN_OFFSET:
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continue # Most likely a dummy file.
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if lines[HEADER_CHECK_OFFSET].startswith("#import"):
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continue # Early catch obj-c file.
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name = f"GODOT_{Path(file).name}".upper().replace(".", "_").replace("-", "_").replace(" ", "_")
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HEADER_CHECK = f"#ifndef {name}\n"
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HEADER_BEGIN = f"#define {name}\n"
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HEADER_END = f"#endif // {name}\n"
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if (
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lines[HEADER_CHECK_OFFSET] == HEADER_CHECK
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and lines[HEADER_BEGIN_OFFSET] == HEADER_BEGIN
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and lines[HEADER_END_OFFSET] == HEADER_END
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):
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continue
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# Guards might exist but with the wrong names.
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if (
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lines[HEADER_CHECK_OFFSET].startswith("#ifndef")
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and lines[HEADER_BEGIN_OFFSET].startswith("#define")
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and lines[HEADER_END_OFFSET].startswith("#endif")
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):
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lines[HEADER_CHECK_OFFSET] = HEADER_CHECK
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lines[HEADER_BEGIN_OFFSET] = HEADER_BEGIN
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lines[HEADER_END_OFFSET] = HEADER_END
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with open(file, "wt", encoding="utf-8", newline="\n") as f:
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f.writelines(lines)
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changed.append(file)
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continue
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header_check = -1
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header_begin = -1
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header_end = -1
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pragma_once = -1
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objc = False
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for idx, line in enumerate(lines):
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if not line.startswith("#"):
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continue
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elif line.startswith("#ifndef") and header_check == -1:
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header_check = idx
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elif line.startswith("#define") and header_begin == -1:
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header_begin = idx
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elif line.startswith("#endif") and header_end == -1:
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header_end = idx
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elif line.startswith("#pragma once"):
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pragma_once = idx
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break
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elif line.startswith("#import"):
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objc = True
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break
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if objc:
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continue
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if pragma_once != -1:
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lines.pop(pragma_once)
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lines.insert(HEADER_CHECK_OFFSET, HEADER_CHECK)
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lines.insert(HEADER_BEGIN_OFFSET, HEADER_BEGIN)
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lines.append("\n")
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lines.append(HEADER_END)
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with open(file, "wt", encoding="utf-8", newline="\n") as f:
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f.writelines(lines)
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changed.append(file)
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continue
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if header_check == -1 and header_begin == -1 and header_end == -1:
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# Guards simply didn't exist
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lines.insert(HEADER_CHECK_OFFSET, HEADER_CHECK)
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lines.insert(HEADER_BEGIN_OFFSET, HEADER_BEGIN)
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lines.append("\n")
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lines.append(HEADER_END)
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with open(file, "wt", encoding="utf-8", newline="\n") as f:
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f.writelines(lines)
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changed.append(file)
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continue
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if header_check != -1 and header_begin != -1 and header_end != -1:
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# All prepends "found", see if we can salvage this.
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if header_check == header_begin - 1 and header_begin < header_end:
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lines.pop(header_check)
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lines.pop(header_begin - 1)
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lines.pop(header_end - 2)
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if lines[header_end - 3] == "\n":
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lines.pop(header_end - 3)
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lines.insert(HEADER_CHECK_OFFSET, HEADER_CHECK)
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lines.insert(HEADER_BEGIN_OFFSET, HEADER_BEGIN)
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lines.append("\n")
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lines.append(HEADER_END)
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with open(file, "wt", encoding="utf-8", newline="\n") as f:
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f.writelines(lines)
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changed.append(file)
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continue
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invalid.append(file)
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if changed:
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for file in changed:
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print(f"FIXED: {file}")
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if invalid:
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for file in invalid:
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print(f"REQUIRES MANUAL CHANGES: {file}")
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sys.exit(1)
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