feat: basic env error logging

src/cli/cmd-add.ts

@@ -37,6 +37,7 @@ import { areArraysEqual } from "../utils/array-utils";
 import { Err, Ok, Result } from "ts-results-es";
 import { CustomError } from "ts-custom-error";
 import {
+  logEnvParseError,
   logManifestLoadError,
   logManifestSaveError,
   logPackumentResolveError,
@@ -117,7 +118,10 @@ export function makeAddCmd(
     if (!Array.isArray(pkgs)) pkgs = [pkgs];
     // parse env
     const envResult = await parseEnv(options);
-    if (envResult.isErr()) return envResult;
+    if (envResult.isErr()) {
+      logEnvParseError(log, envResult.error);
+      return envResult;
+    }
     const env = envResult.value;
 
     if (typeof env.editorVersion === "string")

src/cli/cmd-deps.ts

@@ -16,6 +16,7 @@ import {
 import { Logger } from "npmlog";
 import { logValidDependency } from "./dependency-logging";
 import { VersionNotFoundError } from "../domain/packument";
+import { logEnvParseError } from "./error-logging";
 
 export type DepsError = EnvParseError | DependencyResolveError;
 
@@ -51,7 +52,10 @@ export function makeDepsCmd(
   return async (pkg, options) => {
     // parse env
     const envResult = await parseEnv(options);
-    if (envResult.isErr()) return envResult;
+    if (envResult.isErr()) {
+      logEnvParseError(log, envResult.error);
+      return envResult;
+    }
     const env = envResult.value;
 
     const [name, version] = splitPackageReference(pkg);

src/cli/cmd-login.ts

@@ -14,6 +14,7 @@ import { NpmrcLoadError, NpmrcSaveError } from "../io/npmrc-io";
 import { Logger } from "npmlog";
 import { UpmAuthStoreError } from "../services/upm-auth";
 import { LoginService } from "../services/login";
+import { logEnvParseError } from "./error-logging";
 
 /**
  * Errors which may occur when logging in.
@@ -59,7 +60,10 @@ export function makeLoginCmd(
   return async (options) => {
     // parse env
     const envResult = await parseEnv(options);
-    if (envResult.isErr()) return envResult;
+    if (envResult.isErr()) {
+      logEnvParseError(log, envResult.error);
+      return envResult;
+    }
     const env = envResult.value;
 
     // query parameters

src/cli/cmd-remove.ts

@@ -24,7 +24,11 @@ import {
   PackageWithVersionError,
   PackumentNotFoundError,
 } from "../common-errors";
-import { logManifestLoadError, logManifestSaveError } from "./error-logging";
+import {
+  logEnvParseError,
+  logManifestLoadError,
+  logManifestSaveError,
+} from "./error-logging";
 import { Logger } from "npmlog";
 
 export type RemoveError =
@@ -59,7 +63,10 @@ export function makeRemoveCmd(
     if (!Array.isArray(pkgs)) pkgs = [pkgs];
     // parse env
     const envResult = await parseEnv(options);
-    if (envResult.isErr()) return envResult;
+    if (envResult.isErr()) {
+      logEnvParseError(log, envResult.error);
+      return envResult;
+    }
     const env = envResult.value;
 
     const tryRemoveFromManifest = async function (

src/cli/cmd-search.ts

@@ -6,6 +6,7 @@ import { Ok, Result } from "ts-results-es";
 import { HttpErrorBase } from "npm-registry-fetch/lib/errors";
 import { Logger } from "npmlog";
 import { SearchPackages } from "../services/search-packages";
+import { logEnvParseError } from "./error-logging";
 
 export type SearchError = EnvParseError | HttpErrorBase;
 
@@ -32,7 +33,10 @@ export function makeSearchCmd(
   return async (keyword, options) => {
     // parse env
     const envResult = await parseEnv(options);
-    if (envResult.isErr()) return envResult;
+    if (envResult.isErr()) {
+      logEnvParseError(log, envResult.error);
+      return envResult;
+    }
     const env = envResult.value;
 
     let usedEndpoint = "npmsearch";

src/cli/cmd-view.ts

@@ -16,6 +16,7 @@ import {
 } from "../common-errors";
 import { Logger } from "npmlog";
 import { ResolveRemotePackument } from "../services/resolve-remote-packument";
+import { logEnvParseError } from "./error-logging";
 
 export type ViewOptions = CmdOptions;
 
@@ -111,7 +112,10 @@ export function makeViewCmd(
   return async (pkg, options) => {
     // parse env
     const envResult = await parseEnv(options);
-    if (envResult.isErr()) return envResult;
+    if (envResult.isErr()) {
+      logEnvParseError(log, envResult.error);
+      return envResult;
+    }
     const env = envResult.value;
 
     // parse name

src/cli/error-logging.ts

@@ -8,6 +8,10 @@ import { FileParseError, PackumentNotFoundError } from "../common-errors";
 import { DomainName } from "../domain/domain-name";
 import { VersionNotFoundError } from "../domain/packument";
 import { FsError, FsErrorReason } from "../io/file-io";
+import { EnvParseError } from "../services/parse-env";
+import { NoWslError } from "../io/wsl";
+import { ChildProcessError } from "../utils/process";
+import { RequiredEnvMissingError } from "../io/upm-config-io";
 
 /**
  * Logs a {@link ManifestLoadError} to the console.
@@ -49,3 +53,30 @@ export function logPackumentResolveError(
     );
   }
 }
+
+/**
+ * Logs a {@link EnvParseError} to a logger.
+ */
+export function logEnvParseError(log: Logger, error: EnvParseError) {
+  // TODO: Formulate more specific error messages.
+  const reason =
+    error instanceof NoWslError
+      ? "you attempted to use wsl even though you are not running openupm inside wsl"
+      : error instanceof FsError
+      ? error.reason === FsErrorReason.Missing
+        ? `the file or directory at "${error.path}" does not exist`
+        : `the file or directory at "${error.path}" could not be read`
+      : error instanceof ChildProcessError
+      ? "a required child process failed"
+      : error instanceof FileParseError
+      ? `the file at ${error.path} could not parsed into a ${error.targetDescription}`
+      : error instanceof RequiredEnvMissingError
+      ? `none of the following environment variables were set: ${error.keyNames.join(
+          ", "
+        )}`
+      : `a string was malformed. Expected to be ${error.formatName}`;
+  const errorMessage = `environment information could not be parsed because ${reason}.`;
+  log.error("", errorMessage);
+
+  // TODO: Suggest actions user might take in order to fix the problem.
+}

src/common-errors.ts

@@ -1,6 +1,6 @@
 import { CustomError } from "ts-custom-error";
 import { EditorVersion } from "./domain/editor-version";
-import {StringFormatError} from "./utils/string-parsing";
+import { StringFormatError } from "./utils/string-parsing";
 
 /**
  * Error for when the packument was not found.

src/io/special-paths.ts

@@ -64,7 +64,7 @@ export function makeHomePathGetter(): GetHomePath {
   return () => {
     const homePath = tryGetEnv("USERPROFILE") ?? tryGetEnv("HOME");
     if (homePath === null)
-      return Err(new RequiredEnvMissingError("USERPROFILE", "HOME"));
+      return Err(new RequiredEnvMissingError(["USERPROFILE", "HOME"]));
     return Ok(homePath);
   };
 }

src/io/upm-config-io.ts

@@ -14,7 +14,7 @@ const configFileName = ".upmconfig.toml";
 
 export class RequiredEnvMissingError extends CustomError {
   private readonly _class = "RequiredEnvMissingError";
-  constructor(...keyNames: string[]) {
+  constructor(public readonly keyNames: string[]) {
     super(
       `Env was required to contain a value for one of the following keys, but all were missing: ${keyNames
         .map((keyName) => `"${keyName}"`)
@@ -63,7 +63,7 @@ export function makeUpmConfigPathGetter(
       const profilePath = tryGetEnv("ALLUSERSPROFILE");
       if (profilePath === null)
         return Err(
-          new RequiredEnvMissingError("ALLUSERSPROFILE")
+          new RequiredEnvMissingError(["ALLUSERSPROFILE"])
         ).toAsyncResult();
       return Ok(path.join(profilePath, systemUserSubPath)).toAsyncResult();
     }

test/cli/cmd-login.test.ts

@@ -56,7 +56,7 @@ describe("cmd-login", () => {
   // TODO: Add tests for prompting logic
 
   it("should fail if upm config path could not be determined", async () => {
-    const expected = new RequiredEnvMissingError();
+    const expected = new RequiredEnvMissingError([]);
     const { loginCmd, getUpmConfigPath } = makeDependencies();
     getUpmConfigPath.mockReturnValue(Err(expected).toAsyncResult());
 
@@ -71,7 +71,7 @@ describe("cmd-login", () => {
   });
 
   it("should fail if login failed", async () => {
-    const expected = new RequiredEnvMissingError();
+    const expected = new RequiredEnvMissingError([]);
     const { loginCmd, login } = makeDependencies();
     login.mockReturnValue(Err(expected).toAsyncResult());
 

test/io/npmrc-io.test.ts

@@ -39,7 +39,7 @@ describe("npmrc-io", () => {
 
     it("should fail if home could not be determined", () => {
       const { findPath, getHomePath } = makeDependencies();
-      getHomePath.mockReturnValue(Err(new RequiredEnvMissingError()));
+      getHomePath.mockReturnValue(Err(new RequiredEnvMissingError([])));
 
       const result = findPath();
 

test/io/upm-config-io.test.ts

@@ -33,7 +33,7 @@ describe("upm-config-io", () => {
 
       it("should fail if home could not be determined", async () => {
         const { getUpmConfigPath, getHomePath } = makeDependencies();
-        const expected = new RequiredEnvMissingError();
+        const expected = new RequiredEnvMissingError([]);
         getHomePath.mockReturnValue(Err(expected));
 
         const result = await getUpmConfigPath(false, false).promise;

test/services/npmrc-auth.test.ts

@@ -26,7 +26,7 @@ function makeDependencies() {
 describe("npmrc-auth", () => {
   describe("set token", () => {
     it("should fail if path could not be determined", async () => {
-      const expected = new RequiredEnvMissingError();
+      const expected = new RequiredEnvMissingError([]);
       const { authNpmrc, findPath } = makeDependencies();
       findPath.mockReturnValue(Err(expected));