feat: print command errors to user

src/commands/configurations/prompts/configuration.ts

@@ -1,6 +1,7 @@
 import { getConfigurations } from '../../../lib/configurations'
 import { Configuration, ConfigurationChooseAnswers } from '../../../lib/types'
 import { searchByKey } from '../../../lib/util/search'
+import { tryCatch } from '../../../lib/util/error'
 
 const formatConfiguration = (configuration: Configuration) => {
   return {
@@ -10,12 +11,12 @@ const formatConfiguration = (configuration: Configuration) => {
   }
 }
 
-const source = (answers: ConfigurationChooseAnswers, input?: string) => {
+const source = tryCatch((answers: ConfigurationChooseAnswers, input?: string) => {
   const configurations = getConfigurations()
   const filtered = searchByKey(configurations, 'configurationName', input)
 
   return filtered.map(formatConfiguration)
-}
+})
 
 export const configurationPrompt = {
   type: 'autocomplete',

src/commands/configurations/prompts/google-cloud-project.ts

@@ -1,11 +1,12 @@
 import { fetchGoogleCloudProjects } from '../../../lib/gcloud/projects'
 import { ConfigurationCreateAnswers } from '../../../lib/types'
+import { tryCatch } from '../../../lib/util/error'
 import { search } from '../../../lib/util/search'
 
-const source = (answers: ConfigurationCreateAnswers, input?: string) => {
+const source = tryCatch((answers: ConfigurationCreateAnswers, input?: string) => {
   const projects = fetchGoogleCloudProjects()
   return search(projects, input)
-}
+})
 
 export const googleCloudProjectPrompt = {
   type: 'autocomplete',

src/commands/configurations/prompts/google-cloud-sql-instance.ts

@@ -5,6 +5,7 @@ import {
 } from '../../../lib/gcloud/sql-instances'
 import { ConfigurationCreateAnswers } from '../../../lib/types'
 import { searchByKey } from '../../../lib/util/search'
+import { tryCatch } from '../../../lib/util/error'
 
 const formatInstance = (instance: GoogleCloudSqlInstance) => {
   const { name, region } = instance
@@ -15,12 +16,12 @@ const formatInstance = (instance: GoogleCloudSqlInstance) => {
   }
 }
 
-const source = (answers: ConfigurationCreateAnswers, input?: string) => {
+const source = tryCatch((answers: ConfigurationCreateAnswers, input?: string) => {
   const instances = fetchGoogleCloudSqlInstances(answers.googleCloudProject)
   const filtered = searchByKey(instances, 'connectionName', input)
 
   return filtered.map(formatInstance)
-}
+})
 
 export const googleCloudSqlInstancePrompt = {
   type: 'autocomplete',

src/commands/configurations/prompts/kubernetes-context.ts

@@ -1,11 +1,12 @@
 import { fetchKubernetesContexts } from '../../../lib/kubectl/contexts'
 import { ConfigurationCreateAnswers } from '../../../lib/types'
 import { search } from '../../../lib/util/search'
+import { tryCatch } from '../../../lib/util/error'
 
-const source = (answers: ConfigurationCreateAnswers, input?: string) => {
+const source = tryCatch((answers: ConfigurationCreateAnswers, input?: string) => {
   const instances = fetchKubernetesContexts()
   return search(instances, input)
-}
+})
 
 export const kubernetesContextPrompt = {
   type: 'autocomplete',

src/commands/configurations/prompts/kubernetes-namespace.ts

@@ -1,11 +1,12 @@
 import { fetchKubernetesNamespaces } from '../../../lib/kubectl/namespaces'
 import { ConfigurationCreateAnswers } from '../../../lib/types'
 import { search } from '../../../lib/util/search'
+import { tryCatch } from '../../../lib/util/error'
 
-const source = (answers: ConfigurationCreateAnswers, input?: string) => {
+const source = tryCatch((answers: ConfigurationCreateAnswers, input?: string) => {
   const instances = fetchKubernetesNamespaces(answers.kubernetesContext)
   return search(instances, input)
-}
+})
 
 export const kubernetesNamespacePrompt = {
   type: 'autocomplete',

src/commands/configurations/prompts/kubernetes-service-account.ts

@@ -1,14 +1,15 @@
 import { fetchKubernetesServiceAccounts } from '../../../lib/kubectl/service-accounts'
 import { ConfigurationCreateAnswers } from '../../../lib/types'
 import { search } from '../../../lib/util/search'
+import { tryCatch } from '../../../lib/util/error'
 
-const source = (answers: ConfigurationCreateAnswers, input?: string) => {
+const source = tryCatch((answers: ConfigurationCreateAnswers, input?: string) => {
   const instances = fetchKubernetesServiceAccounts(
     answers.kubernetesContext,
     answers.kubernetesNamespace
   )
   return search(instances, input)
-}
+})
 
 export const kubernetesServiceAccountPrompt = {
   type: 'autocomplete',

src/lib/util/error.ts

@@ -0,0 +1,31 @@
+import { bold, red } from 'chalk'
+
+export class CommandExecutionError extends Error {
+  data: string
+
+  constructor(command: string, stderr: string, stdout?: string) {
+    super('Error while executing command.')
+
+    this.data =
+      `${bold(red(this.message))}\n` +
+      `  ${bold('command')}: ${command.trim()}\n` +
+      `  ${bold('stderr')}: ${stderr.trim()}\n` +
+      (stdout ? `  ${bold('stdout')}: ${stdout.trim()}\n` : '')
+  }
+}
+
+export const tryCatch = <A, B, R>(fn: (a: A, b: B) => R) => {
+  return (a: A, b: B) => {
+    try {
+      return fn(a, b)
+    } catch (error) {
+      if (error instanceof CommandExecutionError) {
+        console.error(error.data)
+      } else {
+        console.error(error)
+      }
+
+      throw error
+    }
+  }
+}

src/lib/util/exec.ts

@@ -1,8 +1,14 @@
 import { EOL } from 'os'
 import shell from 'shelljs'
+import { CommandExecutionError } from './error'
 
 export const execCommand = (command: string): string => {
-  const { stdout } = shell.exec(command, { silent: true })
+  const { stdout, stderr } = shell.exec(command, { silent: true })
+
+  if (stderr) {
+    throw new CommandExecutionError(command, stderr, stdout)
+  }
+
   return stdout.trim()
 }