[[FEAT]] Update project license

README.md

@@ -87,12 +87,14 @@ And many more!
 
 ## License
 
-Most files are published using [the standard MIT Expat
-license](https://www.gnu.org/licenses/license-list.html#Expat). One file,
-however, is provided under a slightly modified version of that license. The
-so-called [JSON license](https://www.gnu.org/licenses/license-list.html#JSON)
-is a non-free license, and unfortunately, we can't change it due to historical
-reasons. This license is included as an in-line within the file it concerns.
+JSHint is licensed under [the MIT Expat
+license](https://www.gnu.org/licenses/license-list.html#Expat).
+
+Prior to version 2.12.0 (release in August 2020), JSHint was partially licensed
+under the non-free [JSON
+license](https://www.gnu.org/licenses/license-list.html#JSON). [The 2020
+Relicensing document](http://jshint.com/relicensing-2020/) details the process
+maintainers followed to change the license.
 
 ## The JSHint Team
 

docs/relicensing-2020-commits-lacking-signatures.csv

@@ -0,0 +1,86 @@
+8accbaed,[email protected],DOCS-Replace-Private-Use-Area-character,Non-substantive
+862f00b0,[email protected],Do-not-assume-JSON-block-when-mapping-array,"(signed, just erroneously switched e-mail address and name in form)"
+e8137dfa,[email protected],Issue-350-Make-shadow-check-for-outer-scopes-as-well,granted permission via a GPG-signed e-mail sent to project maintainers
+e2c876d5,[email protected],Fixed-1243-Detect-comparisons-with-typeof-x-and-check-the-other-operand,granted permission via a GPG-signed e-mail sent to project maintainers
+6038e4e2,[email protected],Fixed-1253-Limit-parseInt-radix-check-to-ES3-only,"(signed, just erroneously switched e-mail address and name in form)"
+dd0effc7,[email protected],Fixed-1221-Add-globals-to-the-valOptions-list,Non-substantive
+a17ae9ed,[email protected],Fixed-1189-Support-spaces-in-global,Rewritten via e542f67722430318e9d4804d9f4089b84507b45a
+537dcbd4,[email protected],Fixed-1164-Add-codes-to-errors-generated-by-quit,Rewritten via 94d7f239da4b2ae300b2342af0b777a489f63765
+87e3e6cc,[email protected],Fixed-1138-Count-ternary-and-or-operators-for-complexity,Rewritten via 7a5948c64b5b3937e422843c0234f7a4685bba68 and 8a205a808582579592d5301bba587894e3a824c8
+66f3e4c1,[email protected],Fixed-1133-Make-shelljs-imply-node,Non-substantive
+88c862df,[email protected],Fixed-1109-Parse-yield-expressions,Rewritten via 6fdb4f60586fce156d62633845ca5a19417379c3
+b3d054e0,[email protected],Fixed-1105-two-unrelated-bugs-with-a-parser.-See-1106-for-more-info,Rewritten via 691dbdc1970bc1f1406a0d0ab68e184a0f20ece2
+88644e3d,[email protected],Fixes-1124-Add-shelljs-option,Non-substantive
+813de6cb,[email protected],Don-t-try-to-parse-expression-closure-bodies-as-comma-expressions,Non-substantive
+807db5e3,[email protected],Try-directly-setting-x.paren-from-nud-of-prefix,Rewritten via 9b8cec9a2afc5d53adb965824b42e626607d44fc
+72f5f371,[email protected],An-attempt-to-ignore-assigns-in-conditionals-when-in-parens,Rewritten via 9b8cec9a2afc5d53adb965824b42e626607d44fc
+6de20a3b,[email protected],Break-out-of-comma-expression-parsing-when-a-reserved-word-is-seen,Rewritten via 9b8cec9a2afc5d53adb965824b42e626607d44fc
+21b77a5e,[email protected],Update-precedence-for-expression-calls-that-cannot-include-commas,Rewritten via 9b8cec9a2afc5d53adb965824b42e626607d44fc
+48a0ae6a,[email protected],Use-the-new-comma-parsing-code-in-if-conditions,Rewritten via 9b8cec9a2afc5d53adb965824b42e626607d44fc
+2865994b,[email protected],Make-comma-an-infix-operator,Rewritten via 9b8cec9a2afc5d53adb965824b42e626607d44fc
+2ea9d842,[email protected],Handle-assignments-in-switch-conditions,Rewritten via 9b8cec9a2afc5d53adb965824b42e626607d44fc
+abbbad5e,[email protected],Slightly-cleaner-solution,Non-substantive
+8ccd8275,[email protected],Fix-read-of-property-use-strict-of-undefined,Non-substantive
+cd03a564,[email protected],Always-do-the-unstack-and-after-the-last-advance-for-good-measure,Rewritten via 08eb4e25962eb71f94c09f79b3b08288b91a7bce
+b4e146e2,[email protected],Add-spec-comment-for-strictness-of-ClassBody,Non-substantive
+6b99d1d0,[email protected],Remove-explicit-check-for-class-names-eval-or-arguments,Rewritten via 6759ac902928c32e0c798134abe1fbd1353ad3a3
+dfeaebec,[email protected],Code-cleanup-reduce-diff-with-master,Rewritten via 6759ac902928c32e0c798134abe1fbd1353ad3a3
+19aa8a10,[email protected],expression-should-only-warn-about-future-reserved-words-in-labels,Rewritten via 6759ac902928c32e0c798134abe1fbd1353ad3a3
+9d3abc80,[email protected],Remove-unnecessary-esnextReserved-meta-tag,Rewritten via 6759ac902928c32e0c798134abe1fbd1353ad3a3
+9b992412,[email protected],Mark-interface-as-an-es5-strictOnly-keyword,Rewritten via 6759ac902928c32e0c798134abe1fbd1353ad3a3
+4d6f9540,[email protected],Make-only-class-bodies-strict-by-default-not-the-entire-declaration,Rewritten via 6759ac902928c32e0c798134abe1fbd1353ad3a3
+75b06d7e,[email protected],Accept-class-C-extends-AssignmentExpression,Rewritten via 6759ac902928c32e0c798134abe1fbd1353ad3a3
+b6190c8e,[email protected],Use-function-param-isclassdef-not-function-classdef-in-conditional,Rewritten via 6759ac902928c32e0c798134abe1fbd1353ad3a3
+bbfa15d1,[email protected],Simpler-to-do-one-unstack-here-blockscope-already-has-one-stack,Rewritten via 08eb4e25962eb71f94c09f79b3b08288b91a7bce
+5ac92c2f,[email protected],Recognize-unused-let-at-the-global-scope,Rewritten via 08eb4e25962eb71f94c09f79b3b08288b91a7bce
+181f1c80,[email protected],Update-class-getter-setter-naming-error-messages-to-be-more-specific,Rewritten via 6759ac902928c32e0c798134abe1fbd1353ad3a3
+c658a4c0,[email protected],Fix-error-message-calls,Rewritten via 6759ac902928c32e0c798134abe1fbd1353ad3a3
+ab3a40ba,[email protected],Fix-indentation,Rewritten via 6759ac902928c32e0c798134abe1fbd1353ad3a3
+955da17d,[email protected],Comments-reformat-and-add-some-more-relevant-quotes-from-the-ES6-spec,Rewritten via 6759ac902928c32e0c798134abe1fbd1353ad3a3
+0235f38d,[email protected],Limit-constructor-getter-setter-checks-to-class-definitions,Rewritten via 6759ac902928c32e0c798134abe1fbd1353ad3a3
+cd04ea7b,[email protected],Check-for-methods-named-prototype,Rewritten via 6759ac902928c32e0c798134abe1fbd1353ad3a3
+adc4ffe6,[email protected],Require-that-constructors-be-regular-methods,Rewritten via 6759ac902928c32e0c798134abe1fbd1353ad3a3
+3c5acdc7,[email protected],Treat-methods-and-static-methods-separately-in-checking-for-duplicates,Rewritten via 6759ac902928c32e0c798134abe1fbd1353ad3a3
+df6e0337,[email protected],Formatting-only-add-newline,Rewritten via 6759ac902928c32e0c798134abe1fbd1353ad3a3
+0ffccb97,[email protected],Remove-unused-vars,Rewritten via 6759ac902928c32e0c798134abe1fbd1353ad3a3
+eacc3bd9,[email protected],Extend-strictness-to-cover-the-entire-class-definition,Rewritten via 6759ac902928c32e0c798134abe1fbd1353ad3a3
+8dfa1b64,[email protected],Factor-out-common-code-for-class-statements-and-class-expressions,Rewritten via 6759ac902928c32e0c798134abe1fbd1353ad3a3
+93a5120e,[email protected],Rename-function-param-classdef-to-isclassdef,Rewritten via 6759ac902928c32e0c798134abe1fbd1353ad3a3
+f8869f14,[email protected],Forgot-to-make-class-bodies-strict,Rewritten via 6759ac902928c32e0c798134abe1fbd1353ad3a3
+2fb046e5,[email protected],Add-classexpression-handling,Rewritten via 6759ac902928c32e0c798134abe1fbd1353ad3a3
+db6bcc9d,[email protected],Handle-class-statements.-Reuses-the-code-for-handling-object-literals,Rewritten via 6759ac902928c32e0c798134abe1fbd1353ad3a3
+fec1bf88,[email protected],Treat-class-extends-import-export-as-reserved-when-inESNext,Rewritten via 6759ac902928c32e0c798134abe1fbd1353ad3a3
+ebe8156a,[email protected],Don-t-warn-about-uncapitalized-global-functions-used-as-constructors,Rewritten via 08eb4e25962eb71f94c09f79b3b08288b91a7bce
+b0f3198b,[email protected],Added-broken-test-for-Node-and-NodeFilter,Non-substantive
+e82c83b4,[email protected],Add-DOMParser-global-to-browser,Non-substantive
+56b998a9,[email protected],Add-XMLSerializer-global-to-browser,Non-substantive
+2a2c9461,[email protected],Add-atob-and-btoa-globals-to-browser,Non-substantive
+e2dc30a6,[email protected],adding-provides-to-couch-env,Non-substantive
+fc83cf97,[email protected],Add-missing-comma-in-members-list,Non-substantive
+6dd6052f,[email protected],Adding-HTML-canvas-and-video-tags-for-HTML5,Non-substantive
+09c1982c,[email protected],Added-predefined-browser-classes-for-various-HTML-object-types,Non-substantive
+f9a2dfee,[email protected],Added-predefined-browser-classes-for-various-HTML-object-types,Non-substantive
+b30bfa89,[email protected],Separate-check-for-trailing-whitespace-in-to-its-own-function-along-with-tests,removed via 0c0e19319b276b019d285bdfd2cfc49126abd814
+38ccb0fb,[email protected],Corrected-misspelled-specigic,Non-substantive
+6c238084,[email protected],new-Array-expression-is-valid,Rewritten via 9c07e4c5764a564073433265edcaa3b823fbf41d
+7c327bf6,[email protected],Tolerate-stupid-blockless-blocks,relicensed via Eclipse
+5675d2c6,[email protected],http-tech.groups.yahoo.com-group-jslint_com-message-1730,relicensed via Eclipse
+73c2fe36,[email protected],indent,relicensed via Eclipse
+d7896b2c,[email protected],step_in-step_out,relicensed via Eclipse
+85c95acb,[email protected],for-var,relicensed via Eclipse
+caa8885a,[email protected],use-strict,relicensed via Eclipse
+1da55dd6,[email protected],http-www.yuiblog.com-blog-2010-12-14-strict-mode-is-coming-to-town,relicensed via Eclipse
+b6d8b251,[email protected],use-strict,relicensed via Eclipse
+dc4a0133,[email protected],JSON-escape-v,relicensed via Eclipse
+80a22526,[email protected],JSON-escape-single-quote,relicensed via Eclipse
+bdd35767,[email protected],k,relicensed via Eclipse
+6735394d,[email protected],Cleanup,relicensed via Eclipse
+6af839a6,[email protected],option.predef,relicensed via Eclipse
+c9332068,[email protected],Warn-on-new-Array-NUMBER,relicensed via Eclipse
+523956b6,[email protected],Removing-rhino.js-and-wsh.js.-Other-projects-are-providing-better-alternatives,relicensed via Eclipse
+d98f7530,[email protected],dangerous-comments,relicensed via Eclipse
+35ec4a53,[email protected],groove,relicensed via Eclipse
+d4a0702b,[email protected],More-css-colors,relicensed via Eclipse
+eb939e7f,[email protected],Use-charAt-instead-of-in-line-1786,relicensed via Eclipse
+af040fb1,[email protected],Use-.charAt-instead-of-in-line-1786,relicensed via Eclipse
+ca120a73,[email protected],first-commit,relicensed via Eclipse

docs/relicensing-2020.md

@@ -0,0 +1,111 @@
+# 2020 Relicensing
+
+In August of 2020, the JSHint project maintainers relicensed the project. This
+was the culmination of a years-long effort where great care was taken to
+respect the practice of software licensing and the intent of all contributors.
+By summarizing the process followed by the maintainers, this document
+demonstrates the legitimacy of the change.
+
+## Origin: JSLint
+
+The JSLint project was first made publicly available in 2002. It was
+distributed free-of-charge, but it was licensed with the so-called "JSON
+License" [1]. Code published under this license is not recognized as "free
+software" by the Free Software Foundation [2], nor is it recognized as "open
+source" by the Open Source Initiative [3] due to the following clause:
+
+> The Software shall be used for Good, not Evil.
+
+After the initial release, JSLint's creator iteratively improved it through a
+series of patches to its one-and-only source code file. Throughout this time,
+the owner was the sole contributor to the project.
+
+## The fork
+
+In 2011, another developer made improvements of their own and published the
+result as a new project named "JSHint" [4]. This was permissible under the
+terms of JSLint's license provided that the new project used the same license
+for the code it inherited.
+
+The second developer continued to modify JSHint and also accepted contributions
+from others. To promote the maintainability of the source code, new features
+were occasionally introduced in distinct files that were designed to be
+included at runtime. Referred to as "modules," these files were made available
+under the terms of the MIT "Expat" license [5]. As automated tests were written
+and included in the project, they too were licensed under MIT "Expat."
+
+In the years that followed, the JSHint project accepted direct code
+contributions from hundreds of developers. Many of these patches modified the
+original JSON-licensed file. Meanwhile, the author of JSLint permitted the
+Eclipse Foundation to relicense a version of JSLint using the MIT Expat license
+so that it could be included in their project named Orion [6].
+
+## Injecting a FOSS starting point
+
+In 2013, a user of JSHint requested that the project be relicensed [7]. The
+JSHint maintainers obliged via the following procedure:
+
+1. Using the git version control software, they reverted all of the changes
+   that were submitted to JSHint. (The resulting code was identical to JSLint
+   at the moment JSHint was created.)
+2. They replaced the JSON-licensed version of the code with the MIT-licensed
+   version published by the Eclipse Foundation. (The resulting code differed
+   from JSLint only in the license header.)
+3. They re-applied all of the changes that were submitted to JSHint.
+
+While this operation created an "alternate history" which demonstrated how
+JSHint could have been created as a free software project, it did not
+necessarily reflect the intentions of the contributors. JSHint did not at that
+time maintain a Contributors Licensing Agreement, so the maintainers did not
+have the authority to modify the terms under which the JSHint-specific patches
+were submitted.
+
+To address this, the maintainers first introduced a Contributors Licensing
+Agreement ("CLA"). They ensured all subsequent contributors agreed to the terms
+of the agreement prior to accepting their patches. They contacted every
+contributor who had modified the JSON-licensed `jshint.js` file and requested
+they they sign the agreement. Although most responded by signing the agreement,
+a few refused and still others did not respond.
+
+## Rewriting
+
+A full listing of the patches whose authors have not signed the CLA is
+available alongside this document in the JSHint project source code repository.
+
+The maintainers reviewed each patch which could not be relicensed. Many
+involved non-substantive changes such as code comment amendments, spelling
+corrections, or the introduction of references to standardized APIs. Because
+these contributions did not meaningfully alter the behavior of the software,
+there could be no claim to ownership, so explicit permission to relicense was
+not necessary.
+
+However, a total of six patches included non-trivial changes to `jshint.js`.
+The maintainers arranged for each of these to be re-written.
+
+Three contributions were rewritten by four volunteers who never reviewed the
+implementation they were rewriting. The project maintainers prepared an
+alternate version of the project for each volunteer--one that omitted each
+patch that needed to be reimplemented.
+
+Three additional contributions were rewritten by a JSHint project maintainer.
+The uniqueness of his work was verified by the other maintainers.
+
+In all cases, correctness of the new implementation was verified by the
+project's existing automated tests (because as described above, their licensing
+was not subject to change).
+
+## Finalization
+
+With this work complete, every line of code in the JSHint project has been
+permitted by its contributor to be licensed using the MIT "Expat" license. The
+"alternate history" is available in a Git tag named `relicensing-2020`.
+
+As of version 2.12.0, JSHint is a free software project.
+
+[1] https://www.gnu.org/licenses/license-list.en.html#JSON
+[2] *Ibid.*
+[3] https://opensource.org/licenses/alphabetical
+[4] https://web.archive.org/web/20110224022052/http://anton.kovalyov.net/2011/02/20/why-i-forked-jslint-to-jshint/
+[5] https://www.gnu.org/licenses/license-list.en.html#Expat
+[6] http://git.eclipse.org/c/orion/org.eclipse.orion.client.git/tree/lib/jslint/jslint-2011-01-09.js
+[7] https://github.com/jshint/jshint/issues/1234

package.json

@@ -67,7 +67,7 @@
     "unicode-5.2.0": "^0.7.5",
     "unicode-11.0.0": "0.7.x"
   },
-  "license": "(MIT AND JSON)",
+  "license": "MIT",
   "preferGlobal": true,
   "files": [
     "bin",

src/jshint.js

@@ -1,8 +1,9 @@
 /*!
  * JSHint, by JSHint Community.
  *
- * This file (and this file only) is licensed under the same slightly modified
- * MIT license that JSLint is. It stops evil-doers everywhere:
+ * Licensed under the MIT license.
+ *
+ * JSHint is a derivative work of JSLint:
  *
  *   Copyright (c) 2002 Douglas Crockford  (www.JSLint.com)
  *
@@ -16,8 +17,6 @@
  *   The above copyright notice and this permission notice shall be included
  *   in all copies or substantial portions of the Software.
  *
- *   The Software shall be used for Good, not Evil.
- *
  *   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  *   IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  *   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE