1 files changed, 116 insertions, 0 deletions
diff --git a/lib/python/qmk/cli/config.py b/lib/python/qmk/cli/config.py
new file mode 100644
index 0000000000..e17d8bb9ba
--- /dev/null
+++ b/lib/python/qmk/cli/config.py
@@ -0,0 +1,116 @@
+"""Read and write configuration settings
+"""
+from milc import cli
+
+
+def print_config(section, key):
+    """Print a single config setting to stdout.
+    """
+    cli.echo('%s.%s{fg_cyan}={fg_reset}%s', section, key, cli.config[section][key])
+
+
+def show_config():
+    """Print the current configuration to stdout.
+    """
+    for section in cli.config:
+        for key in cli.config[section]:
+            print_config(section, key)
+
+
+def parse_config_token(config_token):
+    """Split a user-supplied configuration-token into its components.
+    """
+    section = option = value = None
+
+    if '=' in config_token and '.' not in config_token:
+        cli.log.error('Invalid configuration token, the key must be of the form <section>.<option>: %s', config_token)
+        return section, option, value
+
+    # Separate the key (<section>.<option>) from the value
+    if '=' in config_token:
+        key, value = config_token.split('=')
+    else:
+        key = config_token
+
+    # Extract the section and option from the key
+    if '.' in key:
+        section, option = key.split('.', 1)
+    else:
+        section = key
+
+    return section, option, value
+
+
+def set_config(section, option, value):
+    """Set a config key in the running config.
+    """
+    log_string = '%s.%s{fg_cyan}:{fg_reset} %s {fg_cyan}->{fg_reset} %s'
+    if cli.args.read_only:
+        log_string += ' {fg_red}(change not written)'
+
+    cli.echo(log_string, section, option, cli.config[section][option], value)
+
+    if not cli.args.read_only:
+        if value == 'None':
+            del cli.config[section][option]
+        else:
+            cli.config[section][option] = value
+
+
+@cli.argument('-ro', '--read-only', arg_only=True, action='store_true', help='Operate in read-only mode.')
+@cli.argument('configs', nargs='*', arg_only=True, help='Configuration options to read or write.')
+@cli.subcommand("Read and write configuration settings.")
+def config(cli):
+    """Read and write config settings.
+
+    This script iterates over the config_tokens supplied as argument. Each config_token has the following form:
+
+        section[.key][=value]
+
+    If only a section (EG 'compile') is supplied all keys for that section will be displayed.
+
+    If section.key is supplied the value for that single key will be displayed.
+
+    If section.key=value is supplied the value for that single key will be set.
+
+    If section.key=None is supplied the key will be deleted.
+
+    No validation is done to ensure that the supplied section.key is actually used by qmk scripts.
+    """
+    if not cli.args.configs:
+        return show_config()
+
+    # Process config_tokens
+    save_config = False
+
+    for argument in cli.args.configs:
+        # Split on space in case they quoted multiple config tokens
+        for config_token in argument.split(' '):
+            section, option, value = parse_config_token(config_token)
+
+            # Validation
+            if option and '.' in option:
+                cli.log.error('Config keys may not have more than one period! "%s" is not valid.', config_token)
+                return False
+
+            # Do what the user wants
+            if section and option and value:
+                # Write a configuration option
+                set_config(section, option, value)
+                if not cli.args.read_only:
+                    save_config = True
+
+            elif section and option:
+                # Display a single key
+                print_config(section, option)
+
+            elif section:
+                # Display an entire section
+                for key in cli.config[section]:
+                    print_config(section, key)
+
+    # Ending actions
+    if save_config:
+        cli.save_config()
+
+    return True