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import os
import sys
from subprocess import Popen
from typing import Any, Dict, List
try:
import click
except ImportError:
sys.stderr.write('It seems python-dotenv is not installed with cli option. \n'
'Run pip install "python-dotenv[cli]" to fix this.')
sys.exit(1)
from .main import dotenv_values, get_key, set_key, unset_key
from .version import __version__
@click.group()
@click.option('-f', '--file', default=os.path.join(os.getcwd(), '.env'),
type=click.Path(file_okay=True),
help="Location of the .env file, defaults to .env file in current working directory.")
@click.option('-q', '--quote', default='always',
type=click.Choice(['always', 'never', 'auto']),
help="Whether to quote or not the variable values. Default mode is always. This does not affect parsing.")
@click.option('-e', '--export', default=False,
type=click.BOOL,
help="Whether to write the dot file as an executable bash script.")
@click.version_option(version=__version__)
@click.pass_context
def cli(ctx: click.Context, file: Any, quote: Any, export: Any) -> None:
'''This script is used to set, get or unset values from a .env file.'''
ctx.obj = {}
ctx.obj['QUOTE'] = quote
ctx.obj['EXPORT'] = export
ctx.obj['FILE'] = file
@cli.command()
@click.pass_context
def list(ctx: click.Context) -> None:
'''Display all the stored key/value.'''
file = ctx.obj['FILE']
if not os.path.isfile(file):
raise click.BadParameter(
'Path "%s" does not exist.' % (file),
ctx=ctx
)
dotenv_as_dict = dotenv_values(file)
for k, v in dotenv_as_dict.items():
click.echo('%s=%s' % (k, v))
@cli.command()
@click.pass_context
@click.argument('key', required=True)
@click.argument('value', required=True)
def set(ctx: click.Context, key: Any, value: Any) -> None:
'''Store the given key/value.'''
file = ctx.obj['FILE']
quote = ctx.obj['QUOTE']
export = ctx.obj['EXPORT']
success, key, value = set_key(file, key, value, quote, export)
if success:
click.echo('%s=%s' % (key, value))
else:
exit(1)
@cli.command()
@click.pass_context
@click.argument('key', required=True)
def get(ctx: click.Context, key: Any) -> None:
'''Retrieve the value for the given key.'''
file = ctx.obj['FILE']
if not os.path.isfile(file):
raise click.BadParameter(
'Path "%s" does not exist.' % (file),
ctx=ctx
)
stored_value = get_key(file, key)
if stored_value:
click.echo(stored_value)
else:
exit(1)
@cli.command()
@click.pass_context
@click.argument('key', required=True)
def unset(ctx: click.Context, key: Any) -> None:
'''Removes the given key.'''
file = ctx.obj['FILE']
quote = ctx.obj['QUOTE']
success, key = unset_key(file, key, quote)
if success:
click.echo("Successfully removed %s" % key)
else:
exit(1)
@cli.command(context_settings={'ignore_unknown_options': True})
@click.pass_context
@click.option(
"--override/--no-override",
default=True,
help="Override variables from the environment file with those from the .env file.",
)
@click.argument('commandline', nargs=-1, type=click.UNPROCESSED)
def run(ctx: click.Context, override: bool, commandline: List[str]) -> None:
"""Run command with environment variables present."""
file = ctx.obj['FILE']
if not os.path.isfile(file):
raise click.BadParameter(
'Invalid value for \'-f\' "%s" does not exist.' % (file),
ctx=ctx
)
dotenv_as_dict = {
k: v
for (k, v) in dotenv_values(file).items()
if v is not None and (override or k not in os.environ)
}
if not commandline:
click.echo('No command given.')
exit(1)
ret = run_command(commandline, dotenv_as_dict)
exit(ret)
def run_command(command: List[str], env: Dict[str, str]) -> int:
"""Run command in sub process.
Runs the command in a sub process with the variables from `env`
added in the current environment variables.
Parameters
----------
command: List[str]
The command and it's parameters
env: Dict
The additional environment variables
Returns
-------
int
The return code of the command
"""
# copy the current environment variables and add the vales from
# `env`
cmd_env = os.environ.copy()
cmd_env.update(env)
p = Popen(command,
universal_newlines=True,
bufsize=0,
shell=False,
env=cmd_env)
_, _ = p.communicate()
return p.returncode
if __name__ == "__main__":
cli()
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