python.ts

python-ts/main.ts

@@ -1,4 +1,4 @@
-#!/usr/bin/env runts -- --allow-env --allow-run
+#!/usr/bin/env runts -- --allow-env --allow-run --allow-import --allow-read --allow-write
 
 import {
     execCommand,
@@ -9,16 +9,15 @@ import {
     ProcessBar,
     readFileToString,
     resolveFilename,
+    term,
+    writeStringToFile,
 } from "https://global.hatter.ink/script/get/@16/deno-commons-mod.ts";
 import { parseArgs } from "jsr:@std/cli/parse-args";
-import {writeStringToFile} from "../libraries/deno-commons-mod.ts";
 
 const PYTHON_CONFIG_FILE = "~/.config/python-config.json";
 const PYTHON_VENV_DEFAULT_BASE_DIR = "~/.venv/";
 
 interface PythonConfig {
-    // default_version?: string;
-    // default_profile?: string;
     python_venv_base_path?: string;
     versions: Map<string, PythonVersion>;
     profiles?: Map<string, PythonVenv>;
@@ -36,6 +35,11 @@ interface PythonVenv {
     comment?: string;
 }
 
+async function isFile(path: string): Promise<boolean> {
+    const fileInfo = await Deno.stat(path);
+    return fileInfo?.isFile;
+}
+
 async function loadPythonConfig(): Promise<PythonConfig> {
     const pythonConfigFile = resolveFilename(PYTHON_CONFIG_FILE);
     const pythonConfigJson = await readFileToString(pythonConfigFile);
@@ -53,25 +57,56 @@ async function savePythonConfig(pythonConfig: PythonConfig): Promise<void> {
     );
 }
 
-async function findVirtualEnv(pythonVenvVersion: string): Promise<PythonVenv> {
+function handleHelp(_args: string[]) {
-    const pythonConfig = await loadPythonConfig();
+    const help = [];
-    if (!pythonConfig.profiles) {
+    help.push(
-        throw "No Python venvs configured";
+        `${
+            term.green("python.ts")
+        } - Python version and virtual environment management tool
+
+${term.green("python.ts")} ${
+            term.bold("python")
+        }      - management python version ${
+            term.yellow("[alias: py, ver, version]")
         }
-    const pythonVenv = pythonConfig.profiles[pythonVenvVersion];
+${term.green("python.ts")} ${term.bold("add-python")}  - add python version ${
-    if (!pythonVenv) {
+            term.yellow("[alias: add-py]")
-        throw `Python venv not found: ${pythonVenvVersion}`;
         }
-    return pythonVenv;
+${term.green("python.ts")} ${
+            term.bold("venv")
+        }        - management python virtual environment ${
+            term.yellow("[alias: env]")
+        }
+${term.green("python.ts")} ${
+            term.bold("add-venv")
+        }    - add python virtual environment ${term.yellow("[alias: add-env]")}
+${term.green("python.ts")} ${
+            term.bold("remove-venv")
+        } - remove python virtual environment ${
+            term.yellow("[alias: rm-venv, rm-env]")
+        }
+${term.green("python.ts")} ${
+            term.bold("active-venv")
+        } - active python virtual environment ${
+            term.yellow("[alias: active, active-env]")
+        }`,
+    );
+    // source <(cat ~/.venv-python-3.13.5/bin/activate)
+    // source <(python.ts venv test1)
+    console.log(help.join("\n"));
 }
 
-async function addVirtualEnv(pythonVersion: string | null, pythonVenv: string) {
+async function addVirtualEnv(
+    pythonVersion: string | null,
+    pythonVenv: string,
+    comment?: string,
+) {
     const pythonConfig = await loadPythonConfig();
     if (!pythonVersion) {
         throw `No Python version assigned.`;
     }
     if (!pythonVenv) {
-        throw `No Python venv assigned.`;
+        throw `No Python virtual environment assigned.`;
     }
     const pythonVersionProfile = pythonConfig.versions[pythonVersion];
     if (!pythonVersionProfile) {
@@ -84,13 +119,15 @@ async function addVirtualEnv(pythonVersion: string | null, pythonVenv: string) {
     const pythonVenvProfile = pythonConfig.profiles &&
         pythonConfig.profiles[pythonVenv];
     if (pythonVenvProfile) {
-        throw `Python venv already exists: ${pythonVenv}`;
+        throw `Python virtual environment already exists: ${pythonVenv}`;
     }
     const pythonVenvBaseDir = resolveFilename(
         pythonConfig.python_venv_base_path || PYTHON_VENV_DEFAULT_BASE_DIR,
     );
     if (!await existsPath(pythonVenvBaseDir)) {
-        log.info(`Make python venv base dir: ${pythonVenvBaseDir}`);
+        log.info(
+            `Make python virtual environment base dir: ${pythonVenvBaseDir}`,
+        );
         Deno.mkdirSync(pythonVenvBaseDir);
     }
     const pythonVenvLeafDir = `${pythonVenv}_python_${realPythonVersion}`;
@@ -105,12 +142,18 @@ async function addVirtualEnv(pythonVersion: string | null, pythonVenv: string) {
     const pythonVenvArgs = ["-m", "venv", pythonVenvDir];
 
     log.info("Create Python venv, python:", [python3Cmd, pythonVenvArgs]);
+    await new ProcessBar("Creating Python virtual environment").call(
+        async () => {
             await execCommandShell(python3Cmd, pythonVenvArgs);
+        },
+    );
 
     const newPythonVenvProfile: PythonVenv = {
         version: realPythonVersion,
         path: pythonVenvDir,
-        comment: `Python venv:${pythonVenv}, version: ${realPythonVersion}`,
+        comment: `Python venv:${pythonVenv}, version: ${realPythonVersion}${
+            comment ? (", user comment: " + comment) : ""
+        }`,
     };
     if (!pythonConfig.profiles) {
         pythonConfig.profiles = {};
@@ -119,40 +162,14 @@ async function addVirtualEnv(pythonVersion: string | null, pythonVenv: string) {
     await savePythonConfig(pythonConfig);
 }
 
-async function isFile(path: string): Promise<boolean> {
-    const fileInfo = await Deno.stat(path);
-    return fileInfo?.isFile;
-}
-
-function handleHelp(_args: string[]) {
-    const help = [];
-    help.push(
-        `python.ts - Python version and virtual environment management tool
-
-python.ts python      - management python version [alias: py]
-python.ts add-python  - add python version [alias: py]
-python.ts venv        - management python virtual environment
-python.ts add-venv    - add python virtual environment
-python.ts remove-venv - remove python virtual environment`,
-    );
-    // source <(cat ~/.venv-python-3.13.5/bin/activate)
-    // source <(python.ts venv test1)
-    console.log(help.join("\n"));
-}
-
 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");
@@ -176,17 +193,11 @@ async function handlePython(args: string[]) {
             maxVersionLength - version.length,
         );
         console.log(
-                `- Python ${version} ${versionPadding}: ${pythonVersion.path} [version: ${
+            "- Python:",
-                    pythonVersion.version || "unknown"
+            version,
-                }]`,
+            pythonVersion,
         );
     }
-
-        return;
-    }
-    const pythonVirtualEnv = await findVirtualEnv(flags.version);
-
-    // TODO
 }
 
 async function getPythonVersion(pythonBinPath: string): Promise<string> {
@@ -204,8 +215,10 @@ async function handleAddPython(args: string[]) {
         boolean: ["help"],
         string: ["path"],
     });
-    if (flags.help) {
+    if (args.length === 0 || flags.help) {
-        console.log("Help massage for python add-python");
+        console.log(`Help massage for python add-python
+
+python.ts add-python --path python-path`);
         return;
     }
     if (!flags.path) {
@@ -290,7 +303,14 @@ python.ts venv [--name|-n filter-name]`);
                 return;
             }
             filterProfilesCount++;
-            console.log("-", venv, pythonVenvProfile);
+            console.log(
+                "-",
+                venv,
+                pythonVenvProfile,
+                `, active virtual environment command: ${
+                    term.green("source <(python.ts active-venv " + venv + ")")
+                }`,
+            );
         },
     );
 
@@ -307,15 +327,16 @@ python.ts venv [--name|-n filter-name]`);
 async function handleAddVenv(args: string[]) {
     const flags = parseArgs(args, {
         boolean: ["help"],
-        string: ["version", "venv"],
+        string: ["version", "venv", "comment"],
         alias: {
             V: "version",
+            c: "comment",
         },
     });
     if (args.length === 0 || flags.help) {
         console.log(`Help massage for add-venv
 
-python.ts add-venv --version 3.10 --venv test-env`);
+python.ts add-venv --version 3.10 --venv test-env [--comment comment]`);
         return;
     }
     if (!flags.version) {
@@ -326,7 +347,7 @@ python.ts add-venv --version 3.10 --venv test-env`);
         log.error("Venv is missing");
         return;
     }
-    await addVirtualEnv(flags.version, flags.venv);
+    await addVirtualEnv(flags.version, flags.venv, flags.comment);
 }
 
 async function handleRemoveVenv(args: string[]) {
@@ -348,7 +369,7 @@ python.ts remove-venv --venv test-env`);
     const pythonVenvProfile = pythonConfig.profiles &&
         pythonConfig.profiles[flags.venv];
     if (!pythonVenvProfile) {
-        throw `Python venv not exists: ${flags.venv}`;
+        throw `Python virtual environment not exists: ${flags.venv}`;
     }
 
     console.log(
@@ -375,6 +396,33 @@ python.ts remove-venv --venv test-env`);
     }
 }
 
+async function handleActiveVenv(args: string[]) {
+    if (args.length === 0) {
+        console.log(`Help massage for active-venv
+
+source <(python.rs active[-venv] test-env)`);
+        return;
+    }
+
+    const venv = args[0];
+    const pythonConfig = await loadPythonConfig();
+    const pythonVenvProfile = pythonConfig.profiles &&
+        pythonConfig.profiles[venv];
+    if (!pythonVenvProfile) {
+        throw `Python virtual environment not exists: ${venv}`;
+    }
+
+    const pythonVenvActiveFile = joinPath(
+        pythonVenvProfile.path,
+        "bin",
+        "activate",
+    );
+    const pythonVenvActiveFileContent = await readFileToString(
+        pythonVenvActiveFile,
+    );
+    console.log(pythonVenvActiveFileContent);
+}
+
 async function main() {
     const args = Deno.args;
 
@@ -391,6 +439,8 @@ async function main() {
             handleHelp(remainingArgs);
             break;
         case "py":
+        case "ver":
+        case "version":
         case "python":
             await handlePython(remainingArgs);
             break;
@@ -398,16 +448,24 @@ async function main() {
         case "add-python":
             await handleAddPython(remainingArgs);
             break;
+        case "env":
         case "venv":
             await handleVenv(remainingArgs);
             break;
         case "add-venv":
+        case "add-env":
             await handleAddVenv(remainingArgs);
             break;
         case "rm-venv":
+        case "rm-env":
         case "remove-venv":
             await handleRemoveVenv(remainingArgs);
             break;
+        case "active":
+        case "active-env":
+        case "active-venv":
+            await handleActiveVenv(remainingArgs);
+            break;
         default:
             log.error(`Unknown subcommand: ${subcommand}`);
             break;
@@ -415,3 +473,6 @@ async function main() {
 }
 
 main().catch((e) => log.error(e));
+
+// @SCRIPT-SIGNATURE-V1: yk-r1.ES256.20260125T224529+08:00.MEUCIQCxxJGIlQDOd0HEbsC0
+// 1WCLBtgT7T2TMyTgs9TMCWw97QIgINUQ6SNPJ0NePXi12pp66pCoxh37VqSqaE9TURldmNs=