@@ -7,8 +7,56 @@ import stableStringify from 'fast-json-stable-stringify'
77import { stringify as stringifyJson5 } from 'json5'
88
99import type { CliCommand , CliCommandArgs } from '..'
10+ import { createDefaultPreset , createJsWithBabelPreset , createJsWithTsPreset } from '../../presets/create-jest-preset'
11+ import type { TsJestTransformerOptions } from '../../types'
1012import { backportJestConfig } from '../../utils/backports'
11- import { JestPresetNames , TsJestPresetDescriptor , allPresets , defaults } from '../helpers/presets'
13+ import { JestPresetNames , type TsJestPresetDescriptor , allPresets } from '../helpers/presets'
14+
15+ const migrateGlobalConfigToTransformConfig = (
16+ transformConfig : Config . InitialOptions [ 'transform' ] ,
17+ globalsTsJestConfig : TsJestTransformerOptions | undefined ,
18+ ) => {
19+ if ( transformConfig ) {
20+ return Object . entries ( transformConfig ) . reduce ( ( previousValue , currentValue ) => {
21+ const [ key , transformOptions ] = currentValue
22+ if ( typeof transformOptions === 'string' && transformOptions . includes ( 'ts-jest' ) ) {
23+ return {
24+ ...previousValue ,
25+ [ key ] : globalsTsJestConfig ? [ 'ts-jest' , globalsTsJestConfig ] : 'ts-jest' ,
26+ }
27+ }
28+
29+ return {
30+ ...previousValue ,
31+ [ key ] : transformOptions ,
32+ }
33+ } , { } )
34+ }
35+
36+ return { }
37+ }
38+
39+ const migratePresetToTransformConfig = (
40+ transformConfig : Config . InitialOptions [ 'transform' ] ,
41+ preset : TsJestPresetDescriptor | undefined ,
42+ globalsTsJestConfig : TsJestTransformerOptions | undefined ,
43+ ) => {
44+ if ( preset ) {
45+ const transformConfigFromPreset =
46+ preset . name === JestPresetNames . jsWithTs
47+ ? createJsWithTsPreset ( globalsTsJestConfig )
48+ : preset . name === JestPresetNames . jsWIthBabel
49+ ? createJsWithBabelPreset ( globalsTsJestConfig )
50+ : createDefaultPreset ( globalsTsJestConfig )
51+
52+ return {
53+ ...transformConfig ,
54+ ...transformConfigFromPreset . transform ,
55+ }
56+ }
57+
58+ return transformConfig
59+ }
1260
1361/**
1462 * @internal
@@ -17,7 +65,6 @@ export const run: CliCommand = async (args: CliCommandArgs /* , logger: Logger*/
1765 const nullLogger = createLogger ( { targets : [ ] } )
1866 const file = args . _ [ 0 ] ?. toString ( )
1967 const filePath = resolve ( process . cwd ( ) , file )
20- const footNotes : string [ ] = [ ]
2168 if ( ! existsSync ( filePath ) ) {
2269 throw new Error ( `Configuration file ${ file } )
2370 }
@@ -36,59 +83,18 @@ export const run: CliCommand = async (args: CliCommandArgs /* , logger: Logger*/
3683 // migrate
3784 // first we backport our options
3885 const migratedConfig = backportJestConfig ( nullLogger , actualConfig )
39- let presetName : JestPresetNames | undefined
4086 let preset : TsJestPresetDescriptor | undefined
41- // then we check if we can use `preset`
42- if ( ! migratedConfig . preset && args . jestPreset ) {
43- // find the best preset
87+ if ( migratedConfig . preset ) {
88+ // eslint-disable-next-line @typescript-eslint/no-explicit-any
89+ preset = ( allPresets as any ) [ migratedConfig . preset ] ?? allPresets [ JestPresetNames . default ]
90+ } else {
4491 if ( args . js ) {
45- presetName = args . js === 'babel' ? JestPresetNames . jsWIthBabel : JestPresetNames . jsWithTs
46- } else {
47- // try to detect what transformer the js extensions would target
48- const jsTransformers = Object . keys ( migratedConfig . transform || { } ) . reduce ( ( list , pattern ) => {
49- if ( RegExp ( pattern . replace ( / ^ < r o o t D i r > \/ ? / , '/dummy-project/' ) ) . test ( '/dummy-project/src/foo.js' ) ) {
50- // eslint-disable-next-line @typescript-eslint/no-explicit-any
51- let transformer : string = ( migratedConfig . transform as any ) [ pattern ]
52- if ( / \b b a b e l - j e s t \b / . test ( transformer ) ) transformer = 'babel-jest'
53- else if ( / \t s - j e s t \b / . test ( transformer ) ) transformer = 'ts-jest'
54-
55- return [ ...list , transformer ]
56- }
57-
58- return list
59- } , [ ] as string [ ] )
60- // depending on the transformer found, we use one or the other preset
61- const jsWithTs = jsTransformers . includes ( 'ts-jest' )
62- const jsWithBabel = jsTransformers . includes ( 'babel-jest' )
63- if ( jsWithBabel && ! jsWithTs ) {
64- presetName = JestPresetNames . jsWIthBabel
65- } else if ( jsWithTs && ! jsWithBabel ) {
66- presetName = JestPresetNames . jsWithTs
67- } else {
68- // sounds like js files are NOT handled, or handled with a unknown transformer, so we do not need to handle it
69- presetName = JestPresetNames . default
70- }
71- }
72- // ensure we are using a preset
73- presetName = presetName ?? JestPresetNames . default
74- preset = allPresets [ presetName ]
75- footNotes . push (
76- `Detected preset '${ preset . label }
77- Visit https://kulshekhar.github.io/ts-jest/user/config/#jest-preset for more information about presets.
78- ` ,
79- )
80- } else if ( migratedConfig . preset ?. startsWith ( 'ts-jest' ) ) {
81- if ( args . jestPreset === false ) {
82- delete migratedConfig . preset
92+ preset = args . js === 'babel' ? allPresets [ JestPresetNames . jsWIthBabel ] : allPresets [ JestPresetNames . jsWithTs ]
8393 } else {
84- // eslint-disable-next-line @typescript-eslint/no-explicit-any
85- preset = ( allPresets as any ) [ migratedConfig . preset ] ?? defaults
94+ preset = allPresets [ JestPresetNames . default ]
8695 }
8796 }
8897
89- // enforce the correct name
90- if ( preset ) migratedConfig . preset = preset . name
91-
9298 // check the extensions
9399 if ( migratedConfig . moduleFileExtensions ?. length && preset ) {
94100 const presetValue = dedupSort ( preset . value . moduleFileExtensions ?? [ ] ) . join ( '::' )
@@ -98,7 +104,7 @@ Visit https://kulshekhar.github.io/ts-jest/user/config/#jest-preset for more inf
98104 }
99105 }
100106 // there is a testRegex, remove our testMatch
101- if ( ( typeof migratedConfig . testRegex === 'string' || migratedConfig . testRegex ?. length ) && preset ) {
107+ if ( typeof migratedConfig . testRegex === 'string' || migratedConfig . testRegex ?. length ) {
102108 delete migratedConfig . testMatch
103109 }
104110 // check the testMatch
@@ -110,64 +116,10 @@ Visit https://kulshekhar.github.io/ts-jest/user/config/#jest-preset for more inf
110116 }
111117 }
112118
113- // migrate the transform
114- if ( migratedConfig . transform ) {
115- Object . keys ( migratedConfig . transform ) . forEach ( ( key ) => {
116- // eslint-disable-next-line @typescript-eslint/no-explicit-any
117- const val = ( migratedConfig . transform as any ) [ key ]
118- if ( typeof val === 'string' && / \/ ? t s - j e s t ? (?: \/ p r e p r o c e s s o r \. j s ) ? $ / . test ( val ) ) {
119- // eslint-disable-next-line
120- ; ( migratedConfig . transform as any ) [ key ] = 'ts-jest'
121- }
122- } )
123- }
124-
125- // migrate globals config to transformer config
126119 const globalsTsJestConfig = migratedConfig . globals ?. [ 'ts-jest' ]
127- if ( globalsTsJestConfig && migratedConfig . transform ) {
128- Object . keys ( migratedConfig . transform ) . forEach ( ( key ) => {
129- // eslint-disable-next-line @typescript-eslint/no-explicit-any
130- const val = ( migratedConfig . transform as any ) [ key ]
131- if ( typeof val === 'string' && val . includes ( 'ts-jest' ) ) {
132- // eslint-disable-next-line
133- ; ( migratedConfig . transform as any ) [ key ] = Object . keys ( globalsTsJestConfig ) . length ? [ val , globalsTsJestConfig ] : val
134- }
135- } )
136- delete ( migratedConfig . globals ?? Object . create ( null ) ) [ 'ts-jest' ]
137- }
120+ migratedConfig . transform = migrateGlobalConfigToTransformConfig ( migratedConfig . transform , globalsTsJestConfig )
121+ migratedConfig . transform = migratePresetToTransformConfig ( migratedConfig . transform , preset , globalsTsJestConfig )
138122
139- // check if it's the same as the preset's one
140- if ( preset && migratedConfig . transform ) {
141- if ( stableStringify ( migratedConfig . transform ) === stableStringify ( preset . value . transform ) ) {
142- delete migratedConfig . transform
143- } else {
144- const migratedConfigTransform = migratedConfig . transform
145- const presetValueTransform = preset . value . transform
146- if ( migratedConfigTransform && presetValueTransform ) {
147- migratedConfig . transform = Object . entries ( migratedConfigTransform ) . reduce (
148- // eslint-disable-next-line @typescript-eslint/no-explicit-any
149- ( acc : undefined | Record < string , any > , [ fileRegex , transformerConfig ] ) => {
150- const presetValueTransformerConfig = presetValueTransform [ fileRegex ]
151- const shouldRemoveDuplicatedConfig =
152- ( presetValueTransformerConfig &&
153- Array . isArray ( presetValueTransformerConfig ) &&
154- transformerConfig === presetValueTransformerConfig [ 0 ] &&
155- ! Object . keys ( presetValueTransformerConfig [ 1 ] ) . length ) ||
156- transformerConfig === presetValueTransformerConfig
157-
158- return shouldRemoveDuplicatedConfig
159- ? acc
160- : acc
161- ? { ...acc , [ fileRegex ] : transformerConfig }
162- : { [ fileRegex ] : transformerConfig }
163- } ,
164- undefined ,
165- )
166- }
167- }
168- }
169-
170- // cleanup
171123 cleanupConfig ( actualConfig )
172124 cleanupConfig ( migratedConfig )
173125 const before = stableStringify ( actualConfig )
@@ -183,48 +135,16 @@ No migration needed for given Jest configuration
183135 const stringify = file . endsWith ( '.json' ) ? JSON . stringify : stringifyJson5
184136 const prefix = file . endsWith ( '.json' ) ? '"jest": ' : 'module.exports = '
185137
186- // if we are using preset, inform the user that he might be able to remove some section(s)
187- // we couldn't check for equality
188- // if (usesPreset && migratedConfig.testMatch) {
189- // footNotes.push(`
190- // I couldn't check if your "testMatch" value is the same as mine which is: ${stringify(
191- // presets.testMatch,
192- // undefined,
193- // ' ',
194- // )}
195- // If it is the case, you can safely remove the "testMatch" from what I've migrated.
196- // `)
197- // }
198- if ( preset && migratedConfig . transform ) {
199- footNotes . push ( `
200- I couldn't check if your "transform" value is the same as mine which is: ${ stringify (
201- preset . value . transform ,
202- undefined ,
203- ' ' ,
204- ) }
205- If it is the case, you can safely remove the "transform" from what I've migrated.
206- ` )
207- }
208-
209138 // output new config
210139 process . stderr . write ( `
211140Migrated Jest configuration:
212141` )
213142 process . stdout . write ( `${ prefix } ${ stringify ( migratedConfig , undefined , ' ' ) } )
214- if ( footNotes . length ) {
215- process . stderr . write ( `
216- ${ footNotes . join ( '\n' ) }
217- ` )
218- }
219143}
220144
221145function cleanupConfig ( config : Config . InitialOptions ) : void {
222146 if ( config . globals ) {
223- // eslint-disable-next-line @typescript-eslint/no-explicit-any
224- if ( ( config as any ) . globals [ 'ts-jest' ] && Object . keys ( ( config as any ) . globals [ 'ts-jest' ] ) . length === 0 ) {
225- // eslint-disable-next-line @typescript-eslint/no-explicit-any
226- delete ( config as any ) . globals [ 'ts-jest' ]
227- }
147+ delete config . globals [ 'ts-jest' ]
228148 if ( ! Object . keys ( config . globals ) . length ) {
229149 delete config . globals
230150 }
@@ -240,7 +160,7 @@ function cleanupConfig(config: Config.InitialOptions): void {
240160 config . testMatch = dedupSort ( config . testMatch )
241161 if ( ! config . testMatch . length ) delete config . testMatch
242162 }
243- if ( config . preset === JestPresetNames . default ) config . preset = defaults . name
163+ delete config . preset
244164}
245165
246166// eslint-disable-next-line @typescript-eslint/no-explicit-any
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