feat: cmd.ts

python-ts/main.ts

@@ -7,6 +7,8 @@ import {
     readFileToString,
     resolveFilename,
 } from "https://global.hatter.ink/script/get/@12/deno-commons-mod.ts";
+import { parseArgs } from "jsr:@std/cli/parse-args";
+import { spawn } from "node:child_process";
 
 const PYTHON_CONFIG_FILE = "~/.config/python-config.json";
 const PYTHON_VENV_DEFAULT_BASE_DIR = "~/.venv/";
@@ -21,7 +23,7 @@ interface PythonConfig {
 
 interface PythonVersion {
     version: string;
-    path: string;
+    path: string; // Python path dir or Python binary file
     comment?: string;
 }
 
@@ -34,12 +36,24 @@ interface PythonVenv {
 async function loadPythonConfig(): Promise<PythonConfig> {
     const pythonConfigFile = resolveFilename(PYTHON_CONFIG_FILE);
     const pythonConfigJson = await readFileToString(pythonConfigFile);
-    if (!pythonConfigJson === null) {
+    if (!pythonConfigJson) {
         throw `Could not read python config file: ${pythonConfigFile}`;
     }
     return JSON.parse(pythonConfigJson) as PythonConfig;
 }
 
+async function findVirtualEnv(pythonVenvVersion: string): Promise<PythonVenv> {
+    const pythonConfig = await loadPythonConfig();
+    if (!pythonConfig.profiles) {
+        throw "No Python venvs configured";
+    }
+    const pythonVenv = pythonConfig.profiles[pythonVenvVersion];
+    if (!pythonVenv) {
+        throw `Python venv not found: ${pythonVenvVersion}`;
+    }
+    return pythonVenv;
+}
+
 async function newVirtualEnv(pythonVersion: string | null, pythonVenv: string) {
     const pythonConfig = await loadPythonConfig();
     const selectedPythonVersion = pythonVersion ||
@@ -72,13 +86,133 @@ async function newVirtualEnv(pythonVersion: string | null, pythonVenv: string) {
     }
 
     // python3 -m venv myenv
-    const python3Cmd = joinPath(pythonVersionProfile.path, "bin", "python3");
+    const python3Cmd = await getPythonFromPath(pythonVersionProfile.path);
+    log.success(`Found Python: ${python3Cmd}`);
     const pythonVenvArgs = ["-m", "vent", pythonVenvDir];
+
+    log.info(
+        `Create Python venv, python: ${python3Cmd}, args: ${pythonVenvArgs}`,
+    );
+    spawn(python3Cmd, pythonVenvArgs, {
+        shell: true,
+        stdio: ["inherit", "inherit", "inherit"],
+    });
+}
+
+async function getPythonFromPath(path: string): Promise<string> {
+    if (await isFile(path)) {
+        return path;
+    }
+    const python3Cmd = joinPath(pythonVersionProfile.path, "bin", "python3");
+    if (await isFile(python3Cmd)) {
+        return python3Cmd;
+    }
+    throw new Error(`Python path not found, path: ${path}`);
+}
+
+async function isFile(path: string): Promise<boolean> {
+    const fileInfo = await Deno.stat(path);
+    return fileInfo?.isFile;
+}
+
+function handleHelp(_args: string[]) {
+    console.log("Help message");
+}
+
+async function handlePython(args: string[]) {
+    const flags = parseArgs(Deno.args, {
+        boolean: ["help"],
+        string: ["version"],
+        alias: {
+            V: "version",
+        },
+    });
+    if (flags.help) {
+        console.log("Help massage for python");
+        return;
+    }
+    if (!flags.version) {
+        const pythonConfig = await loadPythonConfig();
+        if (!pythonConfig.versions) {
+            log.error("No Python versions configured");
+            return;
+        }
+
+        const versions = [];
+        let maxVersionLength = 0;
+        for (let version in pythonConfig.versions) {
+            versions.push(version);
+            if (version.length > maxVersionLength) {
+                maxVersionLength = version.length;
+            }
+        }
+        versions.sort();
+
+        console.log(`Found ${versions.length} Python version(s)`);
+        for (let version in pythonConfig.versions) {
+            const pythonVersion = pythonConfig.versions[version];
+            const versionPadding = " ".repeat(
+                maxVersionLength - version.length,
+            );
+            console.log(
+                `- Python ${version} ${versionPadding}: ${pythonVersion.path} [version: ${
+                    pythonVersion.version || "unknown"
+                }]`,
+            );
+        }
+
+        return;
+    }
+    const pythonVirtualEnv = await findVirtualEnv(flags.version);
+
+    // TODO
+}
+
+async function handleVenv(args: string[]) {
+    const flags = parseArgs(Deno.args, {
+        boolean: ["help"],
+        string: ["version"],
+        alias: {
+            V: "version",
+        },
+    });
+    if (flags.help) {
+        console.log("Help massage for venv");
+        return;
+    }
+    if (!flags.version) {
+        log.warn("Version missing");
+        return;
+    }
+    const pythonVirtualEnv = await findVirtualEnv(flags.version);
+
+    // TODO
 }
 
 async function main() {
-    // TODO ...
-}
-await main();
+    const args = parseArgs(Deno.args);
+    const [subcommand, ...remainingArgs] = args._;
 
-// TODO ...
+    if (!subcommand) {
+        log.warn("Subcommand not found");
+        return;
+    }
+
+    switch (subcommand) {
+        case "help":
+            handleHelp(remainingArgs);
+            break;
+        case "py":
+        case "python":
+            await handlePython(remainingArgs);
+            break;
+        case "venv":
+            await handleVenv(remainingArgs);
+            break;
+        default:
+            log.error(`Unknown subcommand: ${subcommand}`);
+            break;
+    }
+}
+
+main().catch((e) => log.error(e));