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Enable processing of further plugins #39

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f001420
add conversion JSON -> JS
stephtr Mar 22, 2020
b80d095
Tweak implemntation of eslint-prettier-compatibility #38 by @stephtr
AdrieanKhisbe Mar 23, 2020
56efe6e
change eol regex
stephtr Mar 24, 2020
7baf122
fix fixmapping of suffix
stephtr Mar 24, 2020
de35bb0
add prettier fixes test
stephtr Mar 24, 2020
72e2bdd
revert unnecessary test change
stephtr Mar 24, 2020
125dc23
Merge pull request #1 from azeemba/master
stephtr Dec 5, 2020
889bd75
fix prettier package.json compatibility
stephtr Dec 5, 2020
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28 changes: 27 additions & 1 deletion src/index.js
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Original file line number Diff line number Diff line change
Expand Up @@ -104,6 +104,9 @@ const errorSignature = err =>

const getErrorCode = _.pipe(_.get('ruleId'), _.split('/'), _.last);

const preprocessorPlaceholder = '___';
const preprocessorTemplate = `JSON.stringify(${preprocessorPlaceholder})`;
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@edg2s edg2s May 12, 2020

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Is JSON.stringify even necessary? Just wrapping the JSON is parentheses would make for valid JS: ({"foo":1})

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@stephtr stephtr May 23, 2020

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Yes, but as soon as additional eslint rules kick in (for example no-unused-expressions) or prettier tries to parse the file with babel, things start to fall apart. One could work around those issues by fine-tuning the eslintrc file, but just adding JSON.stringify simplifies things in practice a lot.


const processors = {
'.json': {
preprocess: function(text, fileName) {
Expand All @@ -112,7 +115,15 @@ const processors = {
const parsed = jsonServiceHandle.parseJSONDocument(textDocument);
fileLintResults[fileName] = getDiagnostics(parsed);
fileComments[fileName] = parsed.comments;
return ['']; // sorry nothing ;)

let lastLineEnding = '';
['\n', '\r'].forEach(char => {
if (text.endsWith(char)) {
lastLineEnding = char + lastLineEnding;
text = text.slice(0, -1);
}
});
return [preprocessorTemplate.replace(preprocessorPlaceholder, text) + lastLineEnding];
},
postprocess: function(messages, fileName) {
const textDocument = fileDocuments[fileName];
Expand Down Expand Up @@ -144,6 +155,21 @@ const processors = {
endColumn: error.endColumn + 1
});
}),
_.mapValues(error => {
const prefixLength = preprocessorTemplate.indexOf(preprocessorPlaceholder);

let fix;
if (error.fix) {
fix = _.assign(error.fix, {
range: error.fix.range.map(location => location - prefixLength)
});
}
return _.assign(error, {
column: error.column - (error.line === 1 ? prefixLength : 0),
endColumn: error.endColumn - (error.endLine === 1 ? prefixLength : 0),
fix
});
}),
_.values
)(messages);
}
Expand Down
7 changes: 3 additions & 4 deletions test/integration.test.js
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Original file line number Diff line number Diff line change
Expand Up @@ -45,10 +45,9 @@ function validateInfringementExpectation(expected, actualSituation) {
else expect(actualSituation).to.have.property(scoped(rule));
}
const allExpectedErrors = expected.map(_.pipe(_.split(':'), _.head, scoped));
expect(_.xor(_.keys(actualSituation), allExpectedErrors)).to.have.length(
0,
'Extra errors found'
);
// only check for errors generated by this plugin
const actualErrors = _.keys(actualSituation).filter(error => error.startsWith(scoped('')));
expect(_.xor(actualErrors, allExpectedErrors)).to.have.length(0, 'Extra errors found');
}

function validateFile(filename, config = {}) {
Expand Down
11 changes: 7 additions & 4 deletions test/unit.test.js
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Original file line number Diff line number Diff line change
Expand Up @@ -27,12 +27,13 @@ describe('plugin', function() {
});
describe('preprocess', function() {
const preprocess = plugin.processors['.json'].preprocess;
it('should return the same text', function() {
it('should contain the text', function() {
const fileName = 'whatever-the-name.js';

const newText = preprocess('whatever', fileName);
const text = 'whatever';
const newText = preprocess(text, fileName);
assert.isArray(newText, 'preprocess should return array');
assert.strictEqual(newText[0], '');
assert.include(newText[0], text);
});
});
describe('postprocess', function() {
Expand Down Expand Up @@ -92,7 +93,9 @@ describe('plugin', function() {
const rules = ['undefined', 'trailing-comma'];
const lintFile = fakeApplyRule(rules.map(rule => plugin.rules[rule]));
const samples = [singleQuotes, trailingCommas, multipleErrors, trailingText, good];
samples.forEach(sample => preprocess(sample.text, sample.fileName));
samples.forEach(sample => {
sample.text = preprocess(sample.text, sample.fileName)[0];
});

const errorsByFile = _.fromPairs(
samples.map(sample => [sample.fileName, lintFile(sample.fileName)])
Expand Down