Move file

src/config/load/main.js

@@ -1,4 +1,4 @@
-import { mergeConfigs } from '../merge/main.js'
+import { deepMerge } from '../merge.js'
 import { CLI_FLAGS_BASE } from '../normalize/cwd.js'
 
 import { getConfigsInfos } from './info.js'
@@ -21,7 +21,7 @@ export const loadConfig = async function (configOpt, configFlags) {
     { configContents: configFlags, base: CLI_FLAGS_BASE },
   ]
   const configsB = configInfosA.map(getConfigContents)
-  const configB = mergeConfigs(configsB)
+  const configB = deepMerge(configsB)
   // eslint-disable-next-line fp/no-mutating-methods
   const configInfosB = [...configInfosA].reverse()
   return { config: configB, configInfos: configInfosB }

src/config/merge/main.js → src/config/merge.js

@@ -1,13 +1,15 @@
 import deepmerge from 'deepmerge'
 
-// Merge two configuration objects. Used to merge:
+// Deeply merge several objects.
+// Used to merge:
 //  - shared `config`
 //  - `spyd.*` with CLI flags
 //  - top-level `config` with plugin-specific one
-export const mergeConfigs = function (configs) {
-  return deepmerge.all(configs, { arrayMerge })
+export const deepMerge = function (objects) {
+  return deepmerge.all(objects, { arrayMerge })
 }
 
+// Override arrays instead of concatenating
 const arrayMerge = function (arrayA, arrayB) {
   return arrayB
 }

src/config/plugin/lib/config.js

@@ -1,5 +1,5 @@
 import { PluginError } from '../../../error/main.js'
-import { mergeConfigs } from '../../merge/main.js'
+import { deepMerge } from '../../merge.js'
 import { getDummyDefinitions } from '../../normalize/dummy.js'
 import { has } from '../../normalize/lib/prop_path/get.js'
 import { normalizeConfig } from '../../normalize/main.js'
@@ -34,7 +34,7 @@ export const normalizePluginConfig = async function ({
   pluginConfigDefinitions = [],
   item,
 }) {
-  const pluginConfig = mergeConfigs([sharedConfig, unmergedConfig])
+  const pluginConfig = deepMerge([sharedConfig, unmergedConfig])
   const prefix = getPrefix.bind(undefined, unmergedConfig, propName)
   const pluginConfigA = await normalizeSharedConfig({
     pluginConfig,