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Added comments for better understanding #18

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29 changes: 14 additions & 15 deletions generate_compdb.py
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Original file line number Diff line number Diff line change
@@ -1,7 +1,7 @@
#!/usr/bin/env python3

# Import necessary libraries and modules
from __future__ import print_function, division

import argparse
import fnmatch
import functools
Expand All @@ -12,31 +12,31 @@
import re
import sys


# Regular expressions to extract command and source variables
CMD_VAR_RE = re.compile(r'^\s*(?:saved)?cmd_(\S+)\s*:=\s*(.+)\s*$', re.MULTILINE)
SOURCE_VAR_RE = re.compile(r'^\s*source_(\S+)\s*:=\s*(.+)\s*$', re.MULTILINE)


# Function to print a progress bar
def print_progress_bar(progress):
progress_bar = '[' + '|' * int(50 * progress) + '-' * int(50 * (1.0 - progress)) + ']'
print('\r', progress_bar, "{0:.1%}".format(progress), end='\r', file=sys.stderr)


# Function to parse a command file and extract compile commands
def parse_cmd_file(out_dir, cmdfile_path):
with open(cmdfile_path, 'r') as cmdfile:
cmdfile_content = cmdfile.read()

commands = { match.group(1): match.group(2) for match in CMD_VAR_RE.finditer(cmdfile_content) }
sources = { match.group(1): match.group(2) for match in SOURCE_VAR_RE.finditer(cmdfile_content) }
commands = {match.group(1): match.group(2) for match in CMD_VAR_RE.finditer(cmdfile_content)}
sources = {match.group(1): match.group(2) for match in SOURCE_VAR_RE.finditer(cmdfile_content)}

return [{
'directory': out_dir,
'command': commands[o_file_name],
'file': source,
'output': o_file_name
} for o_file_name, source in sources.items()]

'directory': out_dir,
'command': commands[o_file_name],
'file': source,
'output': o_file_name
} for o_file_name, source in sources.items()]

# Function to generate compile_commands.json from *.o.cmd files
def gen_compile_commands(cmd_file_search_path, out_dir):
print("Building *.o.cmd file list...", file=sys.stderr)

Expand All @@ -47,7 +47,7 @@ def gen_compile_commands(cmd_file_search_path, out_dir):

cmd_files = []
for search_path in cmd_file_search_path:
if (os.path.isdir(search_path)):
if os.path.isdir(search_path):
for cur_dir, subdir, files in os.walk(search_path):
cmd_files.extend(os.path.join(cur_dir, cmdfile_name) for cmdfile_name in fnmatch.filter(files, '*.o.cmd'))
else:
Expand Down Expand Up @@ -80,13 +80,12 @@ def gen_compile_commands(cmd_file_search_path, out_dir):
with open('compile_commands.json', 'w') as compdb_file:
json.dump(compdb, compdb_file, indent=1)


# Main function to parse command line arguments and generate compile_commands.json
def main():
cmd_parser = argparse.ArgumentParser()
cmd_parser.add_argument('-O', '--out-dir', type=str, default=os.getcwd(), help="Build output directory")
cmd_parser.add_argument('cmd_file_search_path', nargs='*', help="*.cmd file search path")
gen_compile_commands(**vars(cmd_parser.parse_args()))


if __name__ == '__main__':
main()