prettier

__tests__/installer.test.ts

@@ -89,8 +89,7 @@ describe('setup-node', () => {
 
     // disable authentication portion for installer tests
     authSpy = jest.spyOn(auth, 'configAuthentication');
-    authSpy.mockImplementation(() => {
+    authSpy.mockImplementation(() => {});
-    });
 
     // gets
     getManifestSpy.mockImplementation(
@@ -1001,15 +1000,17 @@ describe('setup-node', () => {
       'finds the %s version in the hostedToolcache',
       async (input, expectedVersion) => {
         const toolPath = path.normalize(`/cache/node/${expectedVersion}/x64`);
-        findSpy.mockImplementation((_,version)=>path.normalize(`/cache/node/${version}/x64`))
+        findSpy.mockImplementation((_, version) =>
+          path.normalize(`/cache/node/${version}/x64`)
+        );
         findAllVersionsSpy.mockReturnValue([
           '2.2.2-rc.2',
           '1.1.1-rc.1',
           '99.1.1',
           expectedVersion,
           '88.1.1',
-          '3.3.3-rc.3',
+          '3.3.3-rc.3'
-        ])
+        ]);
 
         inputs['node-version'] = input;
         os['arch'] = 'x64';
@@ -1350,15 +1351,17 @@ describe('setup-node', () => {
       os.platform = 'linux';
       os.arch = 'x64';
 
-      const versionExpected = 'v20.0.0-v8-canary20221103f7e2421e91'
+      const versionExpected = 'v20.0.0-v8-canary20221103f7e2421e91';
       findAllVersionSpy.mockImplementation(() => [versionExpected]);
 
       let toolPath = path.normalize(`/cache/node/${versionExpected}/x64`);
-      findSpy.mockImplementation((version) => toolPath);
+      findSpy.mockImplementation(version => toolPath);
 
       await main.run();
 
-      expect(cnSpy).toHaveBeenCalledWith(`::add-path::${toolPath}/bin${osm.EOL}`)
+      expect(cnSpy).toHaveBeenCalledWith(
+        `::add-path::${toolPath}/bin${osm.EOL}`
+      );
 
       expect(dlSpy).not.toHaveBeenCalled();
       expect(exSpy).not.toHaveBeenCalled();

__tests__/installer.unit.test.ts

@@ -16,98 +16,125 @@ import {
 describe('setup-node unit tests', () => {
   describe('splitVersionSpec', () => {
     it('splitVersionSpec correctly splits version spec without dashes', () => {
-      const [raw, prerelease] = splitVersionSpec('1.1.1')
+      const [raw, prerelease] = splitVersionSpec('1.1.1');
-      expect(raw).toBe('1.1.1')
+      expect(raw).toBe('1.1.1');
-      expect(prerelease).toBeUndefined()
+      expect(prerelease).toBeUndefined();
-    })
+    });
     it('splitVersionSpec correctly splits version spec with one dash', () => {
-      const [raw, prerelease] = splitVersionSpec('1.1.1-nightly12345678')
+      const [raw, prerelease] = splitVersionSpec('1.1.1-nightly12345678');
-      expect(raw).toBe('1.1.1')
+      expect(raw).toBe('1.1.1');
-      expect(prerelease).toBe('nightly12345678')
+      expect(prerelease).toBe('nightly12345678');
-    })
+    });
     it('splitVersionSpec correctly splits version spec with 2 dashes', () => {
-      const [raw, prerelease] = splitVersionSpec('1.1.1-v8-canary12345678')
+      const [raw, prerelease] = splitVersionSpec('1.1.1-v8-canary12345678');
-      expect(raw).toBe('1.1.1')
+      expect(raw).toBe('1.1.1');
-      expect(prerelease).toBe('v8-canary12345678')
+      expect(prerelease).toBe('v8-canary12345678');
-    })
+    });
-  })
+  });
 
   describe('distributionOf', () => {
     it('1.1.1-v8-canary should be CANARY', () => {
-      expect(distributionOf('1.1.1-v8-canary')).toBe(Distributions.CANARY)
+      expect(distributionOf('1.1.1-v8-canary')).toBe(Distributions.CANARY);
-    })
+    });
     it('1.1.1-v8-canary20221103f7e2421e91 should be CANARY', () => {
-      expect(distributionOf('1.1.1-v8-canary20221103f7e2421e91')).toBe(Distributions.CANARY)
+      expect(distributionOf('1.1.1-v8-canary20221103f7e2421e91')).toBe(
-    })
+        Distributions.CANARY
+      );
+    });
     it('1.1.1-canary should throw exception', () => {
-      expect(() => distributionOf('1.1.1-canary')).toThrow('Canary version must have "-v8-canary suffix"')
+      expect(() => distributionOf('1.1.1-canary')).toThrow(
-    })
+        'Canary version must have "-v8-canary suffix"'
+      );
+    });
     it('1.1.1-canary20221103f7e2421e91 should throw exception', () => {
-      expect(() => distributionOf('1.1.1-canary20221103f7e2421e91')).toThrow('Canary version must have "-v8-canary suffix"')
+      expect(() => distributionOf('1.1.1-canary20221103f7e2421e91')).toThrow(
-    })
+        'Canary version must have "-v8-canary suffix"'
+      );
+    });
     it('1.1.1-nightly should be NIGHTLY', () => {
-      expect(distributionOf('1.1.1-nightly')).toBe(Distributions.NIGHTLY)
+      expect(distributionOf('1.1.1-nightly')).toBe(Distributions.NIGHTLY);
-    })
+    });
     it('1.1.1-nightly20221103f7e2421e91 should be NIGHTLY', () => {
-      expect(distributionOf('1.1.1-nightly20221103f7e2421e91')).toBe(Distributions.NIGHTLY)
+      expect(distributionOf('1.1.1-nightly20221103f7e2421e91')).toBe(
-    })
+        Distributions.NIGHTLY
+      );
+    });
     it('1.1.1-rc.0 should be RC', () => {
-      expect(distributionOf('1.1.1-rc.0')).toBe(Distributions.RC)
+      expect(distributionOf('1.1.1-rc.0')).toBe(Distributions.RC);
-    })
+    });
-  })
+  });
 
   describe('versionMatcherFactory', () => {
     it('1.1.1 should be handled by semverVersionMatcherFactory', () => {
-      expect(versionMatcherFactory('1.1.1').factory).toBe(semverVersionMatcherFactory)
+      expect(versionMatcherFactory('1.1.1').factory).toBe(
-    })
+        semverVersionMatcherFactory
+      );
+    });
     it('v1.1.1 should be handled by semverVersionMatcherFactory', () => {
-      expect(versionMatcherFactory('v1.1.1').factory).toBe(semverVersionMatcherFactory)
+      expect(versionMatcherFactory('v1.1.1').factory).toBe(
-    })
+        semverVersionMatcherFactory
+      );
+    });
     it('v1.1.1-v8-canary should be handled by canaryRangeVersionMatcherFactory', () => {
-      expect(versionMatcherFactory('v1.1.1-v8-canary').factory).toBe(canaryRangeVersionMatcherFactory)
+      expect(versionMatcherFactory('v1.1.1-v8-canary').factory).toBe(
-    })
+        canaryRangeVersionMatcherFactory
+      );
+    });
     it('v1.1.1-v8-canary123 should be handled by canaryExactVersionMatcherFactory', () => {
-      expect(versionMatcherFactory('v1.1.1-v8-canary123').factory).toBe(canaryExactVersionMatcherFactory)
+      expect(versionMatcherFactory('v1.1.1-v8-canary123').factory).toBe(
-    })
+        canaryExactVersionMatcherFactory
+      );
+    });
     it('v1.1.1-nightly should be handled by nightlyRangeVersionMatcherFactory', () => {
-      expect(versionMatcherFactory('v1.1.1-nightly').factory).toBe(nightlyRangeVersionMatcherFactory)
+      expect(versionMatcherFactory('v1.1.1-nightly').factory).toBe(
-    })
+        nightlyRangeVersionMatcherFactory
+      );
+    });
     it('v1.1.1-nigthly123 should be handled by nightlyExactVersionMatcherFactory', () => {
-      expect(versionMatcherFactory('v1.1.1-nightly123').factory).toBe(nightlyExactVersionMatcherFactory)
+      expect(versionMatcherFactory('v1.1.1-nightly123').factory).toBe(
-    })
+        nightlyExactVersionMatcherFactory
+      );
+    });
     it('v1.1.1-rc should be handled by semverVersionMatcherFactory', () => {
-      expect(versionMatcherFactory('v1.1.1-rc').factory).toBe(semverVersionMatcherFactory)
+      expect(versionMatcherFactory('v1.1.1-rc').factory).toBe(
-    })
+        semverVersionMatcherFactory
+      );
+    });
     it('v1.1.1-rc.1 should be handled by semverVersionMatcherFactory', () => {
-      expect(versionMatcherFactory('v1.1.1-rc.1').factory).toBe(semverVersionMatcherFactory)
+      expect(versionMatcherFactory('v1.1.1-rc.1').factory).toBe(
-    })
+        semverVersionMatcherFactory
-  })
+      );
+    });
+  });
 
   describe('Version spec matchers', () => {
     it('semverVersionMatcher should always work as semver.satisfies does', () => {
-      const rangePlain = '1.1.1'
+      const rangePlain = '1.1.1';
-      const matcherPlain = semverVersionMatcherFactory(rangePlain)
+      const matcherPlain = semverVersionMatcherFactory(rangePlain);
-      expect(matcherPlain('1.1.1')).toBe(semver.satisfies('1.1.1', rangePlain))
+      expect(matcherPlain('1.1.1')).toBe(semver.satisfies('1.1.1', rangePlain));
-      expect(matcherPlain('1.1.2')).toBe(semver.satisfies('1.1.2', rangePlain))
+      expect(matcherPlain('1.1.2')).toBe(semver.satisfies('1.1.2', rangePlain));
 
-      const rangeEq = '=1.1.1'
+      const rangeEq = '=1.1.1';
-      const matcherEq = semverVersionMatcherFactory(rangeEq)
+      const matcherEq = semverVersionMatcherFactory(rangeEq);
-      expect(matcherEq('1.1.1')).toBe(semver.satisfies('1.1.1', rangeEq))
+      expect(matcherEq('1.1.1')).toBe(semver.satisfies('1.1.1', rangeEq));
-      expect(matcherEq('1.1.2')).toBe(semver.satisfies('1.1.2', rangeEq))
+      expect(matcherEq('1.1.2')).toBe(semver.satisfies('1.1.2', rangeEq));
 
       // TODO: add for discovered issues if any
-    })
+    });
 
     it('canaryExactVersionMatcher should match v20.0.0-v8-canary20221103f7e2421e91 only v20.0.0-v8-canary20221103f7e2421e91', () => {
-      const version = semver.coerce('v20.0.0')!.version
+      const version = semver.coerce('v20.0.0')!.version;
-      const matcher = canaryExactVersionMatcherFactory(version, 'v8-canary20221103f7e2421e91');
+      const matcher = canaryExactVersionMatcherFactory(
+        version,
+        'v8-canary20221103f7e2421e91'
+      );
       expect(matcher('v20.0.0-v8-canary20221103f7e2421e91')).toBeTruthy();
       // see  https://github.com/actions/setup-node/blob/00e1b6691b40cce14b5078cb411dd1ec7dab07f7/__tests__/verify-node.sh#L10
       expect(matcher('v20.0.0-v8-canary202211026bf85d0fb4')).toBeFalsy();
-    })
+    });
 
     it('canaryRangeVersionMatcherFactory should match v20-v8-canary to any minor and patch version', () => {
-      const version = semver.coerce('v20')!.version
+      const version = semver.coerce('v20')!.version;
       const matcher = canaryRangeVersionMatcherFactory(version);
       expect(matcher('v20.0.0-v8-canary20221103f7e2421e91')).toBeTruthy();
       expect(matcher('v20.0.1-v8-canary20221103f7e2421e91')).toBeTruthy();
@@ -117,7 +144,7 @@ describe('setup-node unit tests', () => {
     });
 
     it('canaryRangeVersionMatcherFactory should not match v20-v8-canary to v21.x & v19.x', () => {
-      const version = semver.coerce('v20')!.version
+      const version = semver.coerce('v20')!.version;
       const matcher = canaryRangeVersionMatcherFactory(version);
       expect(matcher('v21.0.0-v8-canary20221103f7e2421e91')).toBeFalsy();
       expect(matcher('v21.1.0-v8-canary20221103f7e2421e91')).toBeFalsy();
@@ -128,7 +155,7 @@ describe('setup-node unit tests', () => {
     });
 
     it('canaryRangeVersionMatcherFactory should match v20.1-v8-canary to any v20.1 patch version and minor above or eq v20.1', () => {
-      const version = semver.coerce('v20.1')!.version
+      const version = semver.coerce('v20.1')!.version;
       const matcher = canaryRangeVersionMatcherFactory(version);
       expect(matcher('v20.1.0-v8-canary20221103f7e2421e91')).toBeTruthy();
       expect(matcher('v20.1.1-v8-canary20221103f7e2421e91')).toBeTruthy();
@@ -137,7 +164,7 @@ describe('setup-node unit tests', () => {
     });
 
     it('canaryRangeVersionMatcherFactory should not match canaryRangeVersionMatcherFactory to v21.x, v19.x, and v20 minor less v20.2', () => {
-      const version = semver.coerce('v20.2')!.version
+      const version = semver.coerce('v20.2')!.version;
       const matcher = canaryRangeVersionMatcherFactory(version);
       expect(matcher('v20.1.0-v8-canary20221103f7e2421e91')).toBeFalsy();
       expect(matcher('v21.0.0-v8-canary20221103f7e2421e91')).toBeFalsy();
@@ -145,7 +172,7 @@ describe('setup-node unit tests', () => {
     });
 
     it('canaryRangeVersionMatcherFactory should not match v20.1.1-v8-canary v20.1.x to patch versions above or eq v20.1.1', () => {
-      const version = semver.coerce('v20.1.1')!.version
+      const version = semver.coerce('v20.1.1')!.version;
       const matcher = canaryRangeVersionMatcherFactory('v20.1.1-v8-canary');
       expect(matcher('v20.1.1-v8-canary20221103f7e2421e91')).toBeTruthy();
       expect(matcher('v20.1.2-v8-canary20221103f7e2421e91')).toBeTruthy();
@@ -153,20 +180,20 @@ describe('setup-node unit tests', () => {
     });
 
     it('canaryRangeVersionMatcherFactory should match v20.1.1-v8-canary to patch versions with any canary timestamp', () => {
-      const version = semver.coerce('v20.1.1')!.version
+      const version = semver.coerce('v20.1.1')!.version;
       const matcher = canaryRangeVersionMatcherFactory(version);
       expect(matcher('v20.1.1-v8-canary20221103f7e2421e91')).toBeTruthy();
       expect(matcher('v20.1.1-v8-canary202211026bf85d0fb4')).toBeTruthy();
     });
 
     it('canaryRangeVersionMatcherFactory should not match v20.1.1-v8-canary to any other minor versions and patch versions below v20.1.1', () => {
-      const version = semver.coerce('v20.1.1')!.version
+      const version = semver.coerce('v20.1.1')!.version;
       const matcher = canaryRangeVersionMatcherFactory(version);
       expect(matcher('v20.1.0-v8-canary20221103f7e2421e91')).toBeFalsy();
       expect(matcher('v21.0.0-v8-canary20221103f7e2421e91')).toBeFalsy();
       expect(matcher('v19.0.0-v8-canary20221103f7e2421e91')).toBeFalsy();
     });
-  })
+  });
 
   describe('evaluateVersions', () => {
     it('evaluateVersions should handle v8-canary version spec without timestamp', () => {
@@ -190,36 +217,63 @@ describe('setup-node unit tests', () => {
         'v20.0.1-v8-canary20221103f7e2421e93',
         'v20.0.2-v8-canary20221103f7e2421e91'
       ];
-      const version = evaluateVersions(versions, 'v20.0.1-v8-canary20221103f7e2421e92');
+      const version = evaluateVersions(
+        versions,
+        'v20.0.1-v8-canary20221103f7e2421e92'
+      );
       expect(version).toBe('v20.0.1-v8-canary20221103f7e2421e92');
     });
-  })
+  });
 
   describe('getNodejsDistUrl', () => {
     it('getNodejsDistUrl should handle v8 canary version spec', async () => {
-      expect(getNodejsDistUrl('1.1.1-v8-canary')).toBe('https://nodejs.org/download/v8-canary');
+      expect(getNodejsDistUrl('1.1.1-v8-canary')).toBe(
-      expect(getNodejsDistUrl('1.1.1-v8-canary123')).toBe('https://nodejs.org/download/v8-canary');
+        'https://nodejs.org/download/v8-canary'
-      expect(getNodejsDistUrl('v1.1.1-v8-canary')).toBe('https://nodejs.org/download/v8-canary');
+      );
-      expect(getNodejsDistUrl('v1.1.1-v8-canary123')).toBe('https://nodejs.org/download/v8-canary');
+      expect(getNodejsDistUrl('1.1.1-v8-canary123')).toBe(
+        'https://nodejs.org/download/v8-canary'
+      );
+      expect(getNodejsDistUrl('v1.1.1-v8-canary')).toBe(
+        'https://nodejs.org/download/v8-canary'
+      );
+      expect(getNodejsDistUrl('v1.1.1-v8-canary123')).toBe(
+        'https://nodejs.org/download/v8-canary'
+      );
     });
 
     it('getNodejsDistUrl should handle nightly version spec', async () => {
-      expect(getNodejsDistUrl('1.1.1-nightly')).toBe('https://nodejs.org/download/nightly');
+      expect(getNodejsDistUrl('1.1.1-nightly')).toBe(
-      expect(getNodejsDistUrl('v1.1.1-nightly')).toBe('https://nodejs.org/download/nightly');
+        'https://nodejs.org/download/nightly'
-      expect(getNodejsDistUrl('1.1.1-nightly123')).toBe('https://nodejs.org/download/nightly');
+      );
-      expect(getNodejsDistUrl('v1.1.1-nightly123')).toBe('https://nodejs.org/download/nightly');
+      expect(getNodejsDistUrl('v1.1.1-nightly')).toBe(
+        'https://nodejs.org/download/nightly'
+      );
+      expect(getNodejsDistUrl('1.1.1-nightly123')).toBe(
+        'https://nodejs.org/download/nightly'
+      );
+      expect(getNodejsDistUrl('v1.1.1-nightly123')).toBe(
+        'https://nodejs.org/download/nightly'
+      );
     });
 
     it('getNodejsDistUrl should handle rc version spec', async () => {
-      expect(getNodejsDistUrl('1.1.1-rc')).toBe('https://nodejs.org/download/rc');
+      expect(getNodejsDistUrl('1.1.1-rc')).toBe(
-      expect(getNodejsDistUrl('v1.1.1-rc')).toBe('https://nodejs.org/download/rc');
+        'https://nodejs.org/download/rc'
-      expect(getNodejsDistUrl('1.1.1-rc.0')).toBe('https://nodejs.org/download/rc');
+      );
-      expect(getNodejsDistUrl('v1.1.1-rc.0')).toBe('https://nodejs.org/download/rc');
+      expect(getNodejsDistUrl('v1.1.1-rc')).toBe(
+        'https://nodejs.org/download/rc'
+      );
+      expect(getNodejsDistUrl('1.1.1-rc.0')).toBe(
+        'https://nodejs.org/download/rc'
+      );
+      expect(getNodejsDistUrl('v1.1.1-rc.0')).toBe(
+        'https://nodejs.org/download/rc'
+      );
     });
 
     it('getNodejsDistUrl should handle unspecific version spec', async () => {
       expect(getNodejsDistUrl('1.1.1')).toBe('https://nodejs.org/dist');
       expect(getNodejsDistUrl('v1.1.1')).toBe('https://nodejs.org/dist');
     });
-  })
+  });
 });

src/installer.ts

@@ -34,103 +34,121 @@ export enum Distributions {
   DEFAULT,
   CANARY,
   NIGHTLY,
-  RC,
+  RC
 }
 
 export const distributionOf = (versionSpec: string): Distributions =>
   versionSpec.includes('-v8-canary')
     ? Distributions.CANARY
-    // TODO: i'd like to have this check, do you?
+    : // TODO: i'd like to have this check, do you?
-    : versionSpec.includes('-canary')
+    versionSpec.includes('-canary')
     ? (() => {
-        throw Error('Canary version must have "-v8-canary suffix"')
+        throw Error('Canary version must have "-v8-canary suffix"');
       })()
     : versionSpec.includes('nightly')
     ? Distributions.NIGHTLY
     : semver.prerelease(versionSpec)
     ? Distributions.RC
-          : Distributions.DEFAULT
+    : Distributions.DEFAULT;
 
 interface VersionMatcher {
-  (potential: string): boolean
+  (potential: string): boolean;
 
   // memoize the factory for testing and debug purposes
-  factory: ((ver: string, suffix: string) => VersionMatcher) |
+  factory:
-    ((semverRanger: string) => VersionMatcher) | (() => VersionMatcher)
+    | ((ver: string, suffix: string) => VersionMatcher)
+    | ((semverRanger: string) => VersionMatcher)
+    | (() => VersionMatcher);
 }
 
 export const semverVersionMatcherFactory = (range: string): VersionMatcher => {
-  const matcher = (potential: string): boolean => semver.satisfies(potential, range);
-  matcher.factory = semverVersionMatcherFactory
-  return matcher
-}
-
-export const canaryRangeVersionMatcherFactory = (version: string): VersionMatcher => {
-  const range = semver.validRange(`^${version}`)
-  const matcher = (potential: string): boolean =>
-    semver.satisfies(potential.replace('-v8-canary', '+v8-canary.'), range);
-  matcher.factory = canaryRangeVersionMatcherFactory
-  return matcher
-}
-
-export const canaryExactVersionMatcherFactory = (version: string, timestamp: string): VersionMatcher => {
-  const range = `${version}-${timestamp}`
   const matcher = (potential: string): boolean =>
     semver.satisfies(potential, range);
-  matcher.factory = canaryExactVersionMatcherFactory
+  matcher.factory = semverVersionMatcherFactory;
-  return matcher
+  return matcher;
-}
+};
 
-export const nightlyRangeVersionMatcherFactory = (version: string): VersionMatcher => {
+export const canaryRangeVersionMatcherFactory = (
-  const range =  `${semver.validRange(`^${version}-0`)}-0`
+  version: string
+): VersionMatcher => {
+  const range = semver.validRange(`^${version}`);
+  const matcher = (potential: string): boolean =>
+    semver.satisfies(potential.replace('-v8-canary', '+v8-canary.'), range);
+  matcher.factory = canaryRangeVersionMatcherFactory;
+  return matcher;
+};
+
+export const canaryExactVersionMatcherFactory = (
+  version: string,
+  timestamp: string
+): VersionMatcher => {
+  const range = `${version}-${timestamp}`;
+  const matcher = (potential: string): boolean =>
+    semver.satisfies(potential, range);
+  matcher.factory = canaryExactVersionMatcherFactory;
+  return matcher;
+};
+
+export const nightlyRangeVersionMatcherFactory = (
+  version: string
+): VersionMatcher => {
+  const range = `${semver.validRange(`^${version}-0`)}-0`;
   const matcher = (potential: string): boolean =>
     distributionOf(potential) === Distributions.NIGHTLY &&
-    semver.satisfies(potential.replace('-nightly', '-nightly.'), range, {includePrerelease: true})
+    semver.satisfies(potential.replace('-nightly', '-nightly.'), range, {
-  matcher.factory = nightlyRangeVersionMatcherFactory
+      includePrerelease: true
-  return matcher
+    });
-}
+  matcher.factory = nightlyRangeVersionMatcherFactory;
+  return matcher;
+};
 
-export const nightlyExactVersionMatcherFactory = (version: string, prerelease_tag: string): VersionMatcher => {
+export const nightlyExactVersionMatcherFactory = (
+  version: string,
+  prerelease_tag: string
+): VersionMatcher => {
   const range = `${version}-${prerelease_tag.replace('nightly', 'nightly.')}`;
   const matcher = (potential: string): boolean =>
     distributionOf(potential) === Distributions.NIGHTLY &&
-    semver.satisfies(potential.replace('-nightly', '-nightly.'), range, {includePrerelease: true})
+    semver.satisfies(potential.replace('-nightly', '-nightly.'), range, {
-  matcher.factory = nightlyExactVersionMatcherFactory
+      includePrerelease: true
-  return matcher
+    });
-}
+  matcher.factory = nightlyExactVersionMatcherFactory;
+  return matcher;
+};
 
 const alwaysFalseVersionMatcherFactory = (): VersionMatcher => {
   const matcher = () => false;
-  matcher.factory = alwaysFalseVersionMatcherFactory
+  matcher.factory = alwaysFalseVersionMatcherFactory;
-  return matcher
+  return matcher;
-}
+};
 
-const alwaysFalseVersionMatcher = alwaysFalseVersionMatcherFactory()
+const alwaysFalseVersionMatcher = alwaysFalseVersionMatcherFactory();
 
 // [raw, prerelease]
-export const splitVersionSpec = (versionSpec: string): string[] => versionSpec.split(/-(.*)/s);
+export const splitVersionSpec = (versionSpec: string): string[] =>
+  versionSpec.split(/-(.*)/s);
 
 export function versionMatcherFactory(versionSpec: string): VersionMatcher {
-  const [raw, prerelease] = splitVersionSpec(versionSpec)
+  const [raw, prerelease] = splitVersionSpec(versionSpec);
   const validVersion = semver.valid(raw) ? raw : semver.coerce(raw)?.version;
 
   if (validVersion) {
     switch (distributionOf(versionSpec)) {
       case Distributions.CANARY:
-        return (prerelease === 'v8-canary') // this means versionSpec does not have timestamp
+        return prerelease === 'v8-canary' // this means versionSpec does not have timestamp
           ? canaryRangeVersionMatcherFactory(validVersion)
-          : canaryExactVersionMatcherFactory(validVersion, prerelease)
+          : canaryExactVersionMatcherFactory(validVersion, prerelease);
       case Distributions.NIGHTLY:
-        return (prerelease === 'nightly') // this means versionSpec does not have prerelease tag
+        return prerelease === 'nightly' // this means versionSpec does not have prerelease tag
           ? nightlyRangeVersionMatcherFactory(validVersion)
-            : nightlyExactVersionMatcherFactory(validVersion, prerelease)
+          : nightlyExactVersionMatcherFactory(validVersion, prerelease);
       case Distributions.RC:
       case Distributions.DEFAULT:
-        return semverVersionMatcherFactory(versionSpec)
+        return semverVersionMatcherFactory(versionSpec);
     }
   } else {
     // TODO: i prefer to have implicit exception for the malformed input
-    throw Error(`Invalid version input "${versionSpec}"`)
+    throw Error(`Invalid version input "${versionSpec}"`);
 
     // TODO: but it is possible to silently fail
     //  return alwaysFalseVersionMatcher
@@ -149,7 +167,7 @@ export async function getNode(
   let nodeVersions: INodeVersion[] | undefined;
   const osPlat: string = os.platform();
   const osArch: string = translateArchToDistUrl(arch);
-  const distribution = distributionOf(versionSpec)
+  const distribution = distributionOf(versionSpec);
 
   if (isLtsAlias(versionSpec)) {
     core.info('Attempt to resolve LTS alias from manifest...');
@@ -199,7 +217,7 @@ export async function getNode(
   if (distribution === Distributions.DEFAULT) {
     toolPath = tc.find('node', versionSpec, osArch);
   } else {
-    const localVersionPaths = tc.findAllVersions('node', osArch)
+    const localVersionPaths = tc.findAllVersions('node', osArch);
     const localVersion = evaluateVersions(localVersionPaths, versionSpec);
     toolPath = localVersion && tc.find('node', localVersion, osArch);
   }
@@ -470,11 +488,14 @@ async function resolveVersionFromManifest(
 //      -  the answer from dsame@github.com - we have customized matcher and can not
 //         export `evaluateVersions` from tc. But it would be possible to modify tc to accept
 //         the matcher as an optional parameter to `evaluateVersions`
-export function evaluateVersions(versions: string[], versionSpec: string): string {
+export function evaluateVersions(
+  versions: string[],
+  versionSpec: string
+): string {
   core.debug(`evaluating ${versions.length} versions`);
 
-  const matcher = versionMatcherFactory(versionSpec)
+  const matcher = versionMatcherFactory(versionSpec);
-  const version = versions.sort(semver.rcompare).find(matcher) || ''
+  const version = versions.sort(semver.rcompare).find(matcher) || '';
 
   if (version) {
     core.debug(`matched: ${version}`);