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"""xipkg config file parser
Simple Key value, supporting map-style objects and arrays
```
key value
key2 another value
# this is a commment
map {
mapkey1 value
mapkey2 value
}
array [
item1
item2
item3
item4
]
```
"""
import sys
# TODO: add more validation to this
"""Parse a config file from a path into a python dict
Args:
file_path: (str) the path to the file
Returns:
(dict) the configuration
"""
def parse_file(file_path):
with open(file_path, "r") as config_file:
return _parse_config(config_file)
"""Parse a config file's lines, is also used for dictionaries within the config
Args:
config_file: (file) a file with the readline function
Returns:
(dict) the configuration that has been parsed
"""
def _parse_config(config_file):
config = {}
line = config_file.readline()
while line:
line = line.strip()
if len(line) > 0 and (line[-1] == "}" or line[-1] == "]"):
return config
else:
values = _parse_line(line.strip(), config_file)
for k,v in values.items():
config[k] = v
line = config_file.readline()
return config
"""Parse a single config ling
Args:
line: (str) the line to be parsed
config_file: (file) the file that the line has been taken from
Returns:
(dict) the configuration that has been parsed from the single line
"""
def _parse_line(line, config_file):
if len(line) == 0:
return {}
if line[0] == "#":
return {}
else:
split = line.split()
key = split[0]
value = " " if len(split) == 1 else " ".join(split[1:])
# if starting with include, then include another file in the same config
if key == "include":
included = parse_file(value)
return included
elif value[-1].endswith("{"):
return {key: _parse_config(config_file)}
elif value[-1].endswith("["):
return {key: [k for k in _parse_config(config_file).keys()]}
else:
return {key: value}
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