Generates cargo executable project and debugging configurations for vscode.

gen_cargo_vscode.py

# -*- coding: utf-8 -*-
"""Generates cargo executable project and debugging configurations for vscode.

Calls `cargo new <project_name> --bin`
and generates vscode configurations for debugging via the Native Debug extension.

Usage: python gen_cargo_vscode.py <project_name>
"""
import sys
import os
import subprocess
from string import Template

def main():
    """A main function.
    """
    project_name = sys.argv[1]

    subprocess.check_call(["cargo", "new", project_name, "--bin"])
    os.mkdir("{}/.vscode".format(project_name))

    launch_template = Template("""\
{
    "version": "0.2.0",
    "configurations": [
        {
            "name": "Debug",
            "type": "gdb",
            "request": "launch",
            "target": "./target/debug/${project_name}",
            "cwd": "$${workspaceRoot}",
            "preLaunchTask": "build",
            "internalConsoleOptions": "openOnSessionStart"
        }
    ]
}
""")

    launch_file = open("{}/.vscode/launch.json".format(project_name), 'w')
    launch_file.write(launch_template.substitute(project_name=project_name))
    launch_file.close()

    tasks_file = open("{}/.vscode/tasks.json".format(project_name), 'w')
    tasks_file.write("""\
{
    // See https://go.microsoft.com/fwlink/?LinkId=733558
    // for the documentation about the tasks.json format
    "version": "0.1.0",
    "command": "cargo",
    "isShellCommand": true,
    "args": [],
    "showOutput": "always",
    "echoCommand": true,
    "suppressTaskName": true,
    "tasks": [
        {
            "taskName": "build",
            "args": ["build"]
        }
    ]
}
""")
    tasks_file.close()

if __name__ == '__main__':
    main()