theoludwig/markdownlint-rule-relative-links
theoludwig/markdownlint-rule-relative-links
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Code Issues Releases Activity

refactor: early conditions first

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This commit is contained in:
Théo LUDWIG 2024-01-12 00:43:45 +01:00
parent 0479652ffe
commit 7ef7cc3bb3
3 changed files with 82 additions and 60 deletions
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122
src/index.js
View File

@ -7,7 +7,7 @@ const {
filterTokens,
convertHeadingToHTMLFragment,
getMarkdownHeadings,
getMarkdownAnchorHTMLFragments,
getMarkdownIdOrAnchorNameFragments,
} = require("./utils.js")
/** @typedef {import('markdownlint').Rule} MarkdownLintRule */
@ -46,65 +46,83 @@ const customRule = {
}
}
if (hrefSrc != null) {
const url = new URL(hrefSrc, pathToFileURL(params.name))
const isRelative =
url.protocol === "file:" &&
!hrefSrc.startsWith("/") &&
!hrefSrc.startsWith("#")
if (isRelative) {
const detail = `"${hrefSrc}"`
if (hrefSrc == null) {
continue
}
if (!fs.existsSync(url)) {
const url = new URL(hrefSrc, pathToFileURL(params.name))
const isRelative =
url.protocol === "file:" &&
!hrefSrc.startsWith("/") &&
!hrefSrc.startsWith("#")
if (!isRelative) {
continue
}
const detail = `"${hrefSrc}"`
if (!fs.existsSync(url)) {
onError({
lineNumber,
detail: `${detail} should exist in the file system`,
})
continue
}
if (url.hash.length <= 0) {
if (hrefSrc.includes("#")) {
if (type !== "link_open") {
onError({
lineNumber,
detail: `${detail} should exist in the file system`,
detail: `${detail} should not have a fragment identifier as it is an image`,
})
continue
}
if (type !== "link_open") {
continue
}
if (url.hash.length <= 0) {
if (hrefSrc.includes("#")) {
onError({
lineNumber,
detail: `${detail} should have a valid fragment identifier`,
})
}
}
if (url.hash.length > 0) {
const fileContent = fs.readFileSync(url, { encoding: "utf8" })
const headings = getMarkdownHeadings(fileContent)
const anchorHTMLFragments =
getMarkdownAnchorHTMLFragments(fileContent)
/** @type {Map<string, number>} */
const fragments = new Map()
const headingsHTMLFragments = headings.map((heading) => {
const fragment = convertHeadingToHTMLFragment(heading)
const count = fragments.get(fragment) ?? 0
fragments.set(fragment, count + 1)
if (count !== 0) {
return `${fragment}-${count}`
}
return fragment
})
headingsHTMLFragments.push(...anchorHTMLFragments)
if (!headingsHTMLFragments.includes(url.hash)) {
onError({
lineNumber,
detail: `${detail} should have a valid fragment identifier`,
})
}
}
onError({
lineNumber,
detail: `${detail} should have a valid fragment identifier`,
})
continue
}
continue
}
if (type !== "link_open") {
onError({
lineNumber,
detail: `${detail} should not have a fragment identifier as it is an image`,
})
continue
}
const fileContent = fs.readFileSync(url, { encoding: "utf8" })
const headings = getMarkdownHeadings(fileContent)
const idOrAnchorNameHTMLFragments =
getMarkdownIdOrAnchorNameFragments(fileContent)
/** @type {Map<string, number>} */
const fragments = new Map()
const fragmentsHTML = headings.map((heading) => {
const fragment = convertHeadingToHTMLFragment(heading)
const count = fragments.get(fragment) ?? 0
fragments.set(fragment, count + 1)
if (count !== 0) {
return `${fragment}-${count}`
}
return fragment
})
fragmentsHTML.push(...idOrAnchorNameHTMLFragments)
if (!fragmentsHTML.includes(url.hash)) {
onError({
lineNumber,
detail: `${detail} should have a valid fragment identifier`,
})
continue
}
}
})

4
src/utils.js
View File

@ -119,7 +119,7 @@ const getMarkdownIdOrAnchorNameFragments = (content) => {
}
const anchorIdOrName = anchorMatch[1]
if (anchorIdOrName === undefined) {
if (anchorIdOrName.length <= 0) {
continue
}
@ -136,5 +136,5 @@ module.exports = {
filterTokens,
convertHeadingToHTMLFragment,
getMarkdownHeadings,
getMarkdownAnchorHTMLFragments: getMarkdownIdOrAnchorNameFragments,
getMarkdownIdOrAnchorNameFragments,
}

16
test/utils.test.js
View File

@ -4,7 +4,7 @@ const assert = require("node:assert/strict")
const {
convertHeadingToHTMLFragment,
getMarkdownHeadings,
getMarkdownAnchorHTMLFragments,
getMarkdownIdOrAnchorNameFragments,
} = require("../src/utils.js")
test("utils", async (t) => {
@ -36,18 +36,22 @@ test("utils", async (t) => {
)
})
await t.test("getMarkdownAnchorHTMLFragments", async () => {
await t.test("getMarkdownIdOrAnchorNameFragments", async () => {
assert.deepStrictEqual(
getMarkdownAnchorHTMLFragments(
getMarkdownIdOrAnchorNameFragments(
'<a name="anchorName" id="anchorId">Link</a>',
),
["#anchorId"],
)
assert.deepStrictEqual(
getMarkdownAnchorHTMLFragments('<a name="anchorName">Link</a>'),
getMarkdownIdOrAnchorNameFragments('<a name="anchorName">Link</a>'),
["#anchorName"],
)
assert.deepStrictEqual(getMarkdownAnchorHTMLFragments("<a>Link</a>"), [])
assert.deepStrictEqual(getMarkdownAnchorHTMLFragments("<a>"), [])
assert.deepStrictEqual(
getMarkdownIdOrAnchorNameFragments("<a>Link</a>"),
[],
)
assert.deepStrictEqual(getMarkdownIdOrAnchorNameFragments("<a>"), [])
assert.deepStrictEqual(getMarkdownIdOrAnchorNameFragments("<a id=>"), [])
})
})