feat: install pip and wheel in all cases

src/python/python.ts

@@ -15,34 +15,62 @@ import { setupDnfPack } from "../utils/setup/setupDnfPack"
 import { isUbuntu } from "../utils/env/isUbuntu"
 import { getExecOutput } from "@actions/exec"
 import { isBinUptoDate } from "../utils/setup/version"
-import { getVersion } from "../versions/versions"
-import assert from "assert"
 import { execaSync } from "execa"
 import { unique } from "../utils/std"
 import { DefaultVersions } from "../versions/default_versions"
 
-export async function setupPython(version: string, setupDir: string, arch: string) {
-  if (!GITHUB_ACTIONS) {
-    // TODO parse version
-    return setupPythonViaSystem(version, setupDir, arch)
-  }
+export async function setupPython(version: string, setupDir: string, arch: string): Promise<InstallationInfo> {
+  let installInfo: InstallationInfo | undefined
+  let foundPython = await findPython()
+
+  if (foundPython !== undefined) {
+    const binDir = dirname(foundPython)
+    installInfo = { bin: foundPython, installDir: binDir, binDir }
+  } else {
+    // if python is not found, try to install it
+    if (GITHUB_ACTIONS) {
+      // install python in GitHub Actions
       try {
         info("Installing python in GitHub Actions")
         const { setupActionsPython } = await import("./actions_python")
-    return setupActionsPython(version, setupDir, arch)
+        await setupActionsPython(version, setupDir, arch)
+
+        foundPython = (await findPython())!
+        const binDir = dirname(foundPython)
+        installInfo = { bin: foundPython, installDir: binDir, binDir }
       } catch (err) {
         warning((err as Error).toString())
-    return setupPythonViaSystem(version, setupDir, arch)
+      }
+    }
+    if (installInfo === undefined) {
+      // install python via system package manager
+      installInfo = await setupPythonSystem(setupDir, version)
     }
   }
 
-export async function setupPythonViaSystem(
-  version: string,
-  setupDir: string,
-  // eslint-disable-next-line @typescript-eslint/no-unused-vars
-  _arch: string
-): Promise<InstallationInfo> {
-  let installInfo: InstallationInfo
+  if (foundPython === undefined) {
+    foundPython = (await findPython())!
+    installInfo.bin = foundPython
+  }
+
+  // setup pip
+  const foundPip = await findOrSetupPip(foundPython)
+  if (foundPip === undefined) {
+    throw new Error("pip was not installed correctly")
+  }
+
+  // setup wheel
+  try {
+    setupWheel(foundPython)
+  } catch (err) {
+    warning(`Failed to install wheels: ${(err as Error).toString()}. Ignoring...`)
+  }
+
+  return installInfo
+}
+
+async function setupPythonSystem(setupDir: string, version: string) {
+  let installInfo: InstallationInfo | undefined
   switch (process.platform) {
     case "win32": {
       if (setupDir) {
@@ -81,23 +109,9 @@ export async function setupPythonViaSystem(
       throw new Error("Unsupported platform")
     }
   }
-  await findOrSetupPip((await findPython())!)
   return installInfo
 }
 
-/// setup python and pip if needed
-export async function findOrSetupPythonAndPip(): Promise<string> {
-  const foundPython = await findOrSetupPython()
-  const foundPip = await findOrSetupPip(foundPython)
-  if (foundPip === undefined) {
-    throw new Error("pip was not installed correctly")
-  }
-  setupWheel(foundPython)
-  return foundPython
-}
-
-let setupPythonTried = false
-
 async function findPython() {
   if (which.sync("python3", { nothrow: true }) !== null) {
     return "python3"
@@ -107,23 +121,6 @@ async function findPython() {
   return undefined
 }
 
-async function findOrSetupPython() {
-  const maybeFoundPython = await findPython()
-  if (maybeFoundPython !== undefined) {
-    return maybeFoundPython
-  }
-
-  if (setupPythonTried) {
-    throw new Error("Failed to install python")
-  }
-  setupPythonTried = true
-
-  // install python
-  info("python3 was not found. Installing python")
-  await setupPython(getVersion("python", undefined), "", process.arch)
-  return findOrSetupPython() // recurse
-}
-
 async function findOrSetupPip(foundPython: string) {
   const maybePip = await findPip()
 
@@ -161,12 +158,14 @@ function ensurePipUpgrade(foundPython: string) {
   try {
     execaSync(foundPython, ["-m", "ensurepip", "-U", "--upgrade"], { stdio: "inherit" })
     return true
-  } catch {
+  } catch (err1) {
+    info((err1 as Error)?.toString?.())
     try {
       // ensure pip is disabled on Ubuntu
       execaSync(foundPython, ["-m", "pip", "install", "--upgrade", "pip"], { stdio: "inherit" })
       return true
-    } catch {
+    } catch (err2) {
+      info((err2 as Error)?.toString?.())
       // pip module not found
     }
   }

src/utils/setup/setupBin.ts

@@ -34,6 +34,7 @@ export type InstallationInfo = {
   /** The top install dir */
   installDir?: string
   binDir: string
+  bin?: string
 }
 
 let didInit: boolean = false

src/utils/setup/setupPipPack.ts

@@ -3,9 +3,10 @@ import { execaSync } from "execa"
 import { pathExists } from "path-exists"
 import { addExeExt, dirname, join } from "patha"
 import which from "which"
-import { addPythonBaseExecPrefix, findOrSetupPythonAndPip } from "../../python/python"
+import { addPythonBaseExecPrefix, setupPython } from "../../python/python"
 import { addPath } from "../env/addEnv"
 import { InstallationInfo } from "./setupBin"
+import { getVersion } from "../../versions/versions"
 
 /* eslint-disable require-atomic-updates */
 let python: string | undefined
@@ -16,7 +17,7 @@ export async function setupPipPack(name: string, version?: string): Promise<Inst
   info(`Installing ${name} ${version ?? ""} via pip`)
 
   if (python === undefined) {
-    python = await findOrSetupPythonAndPip()
+    python = (await setupPython(getVersion("python", undefined), "", process.arch)).bin!
   }
 
   execaSync(python, ["-m", "pip", "install", version !== undefined && version !== "" ? `${name}==${version}` : name], {

src/versions/default_versions.ts

@@ -28,7 +28,7 @@ export const DefaultVersions: Record<string, string | undefined> = {
   task: "3.25.0", // https://github.com/go-task/task/releases
   doxygen: isArch() ? "1.9.6-1" : "1.9.7", // https://www.doxygen.nl/download.html // https://packages.ubuntu.com/search?suite=all&arch=any&searchon=names&keywords=doxygen // https://formulae.brew.sh/formula/doxygen // https://archlinux.org/packages/extra/x86_64/doxygen/
   gcc: isArch() ? "13.1.1-1" : "13", // https://github.com/brechtsanders/winlibs_mingw/releases and // https://packages.ubuntu.com/search?suite=all&arch=any&searchon=names&keywords=gcc
-  pip: "23.1.2",
+  pip: "22.3.1",
 }
 
 /// If an ubuntu versions is not in this map: