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137 lines
3.8 KiB
137 lines
3.8 KiB
const R = require('ramda')
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const urlToName = require('./urlToName')
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const { execFileSync } = require('child_process')
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// fetchgit transforms
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//
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// "shell-quote@git+https://github.com/srghma/node-shell-quote.git#without_unlicenced_jsonify":
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// version "1.6.0"
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// resolved "git+https://github.com/srghma/node-shell-quote.git#1234commit"
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//
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// to
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//
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// builtins.fetchGit {
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// url = "https://github.com/srghma/node-shell-quote.git";
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// ref = "without_unlicenced_jsonify";
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// rev = "1234commit";
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// }
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//
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// and transforms
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//
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// "@graphile/plugin-supporter@git+https://1234user:1234pass@git.graphile.com/git/users/1234user/postgraphile-supporter.git":
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// version "0.6.0"
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// resolved "git+https://1234user:1234pass@git.graphile.com/git/users/1234user/postgraphile-supporter.git#1234commit"
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//
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// to
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//
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// builtins.fetchGit {
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// url = "https://1234user:1234pass@git.graphile.com/git/users/1234user/postgraphile-supporter.git";
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// ref = "master";
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// rev = "1234commit";
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// }
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function prefetchgit(url, rev) {
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return JSON.parse(
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execFileSync("nix-prefetch-git", ["--rev", rev, url, "--fetch-submodules"], {
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stdio: [ "ignore", "pipe", "ignore" ],
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timeout: 60000,
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})
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).sha256
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}
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function fetchgit(fileName, url, rev, branch, builtinFetchGit) {
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return ` {
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name = "${fileName}";
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path =
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let${builtinFetchGit ? `
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repo = builtins.fetchGit ({
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url = "${url}";
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ref = "${branch}";
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rev = "${rev}";
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} // (if builtins.compareVersions "2.4pre" builtins.nixVersion < 0 then {
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# workaround for https://github.com/NixOS/nix/issues/5128
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allRefs = true;
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} else {}));
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` : `
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repo = fetchgit {
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url = "${url}";
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rev = "${rev}";
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sha256 = "${prefetchgit(url, rev)}";
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};
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`}in
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runCommand "${fileName}" { buildInputs = [gnutar]; } ''
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# Set u+w because tar-fs can't unpack archives with read-only dirs
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# https://github.com/mafintosh/tar-fs/issues/79
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tar cf $out --mode u+w -C \${repo} .
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'';
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}`
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}
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function fetchLockedDep(builtinFetchGit) {
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return function (pkg) {
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const { integrity, nameWithVersion, resolved } = pkg
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if (!resolved) {
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console.error(
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`yarn2nix: can't find "resolved" field for package ${nameWithVersion}, you probably required it using "file:...", this feature is not supported, ignoring`,
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)
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return ''
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}
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const [url, sha1OrRev] = resolved.split('#')
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const fileName = urlToName(url)
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if (resolved.startsWith('https://codeload.github.com/')) {
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const s = resolved.split('/')
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const githubUrl = `https://github.com/${s[3]}/${s[4]}.git`
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const githubRev = s[6]
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const [_, branch] = nameWithVersion.split('#')
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return fetchgit(fileName, githubUrl, githubRev, branch || 'master', builtinFetchGit)
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}
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if (url.startsWith('git+') || url.startsWith("git:")) {
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const rev = sha1OrRev
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const [_, branch] = nameWithVersion.split('#')
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const urlForGit = url.replace(/^git\+/, '')
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return fetchgit(fileName, urlForGit, rev, branch || 'master', builtinFetchGit)
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}
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const [algo, hash] = integrity ? integrity.split('-') : ['sha1', sha1OrRev]
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return ` {
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name = "${fileName}";
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path = fetchurl {
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name = "${fileName}";
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url = "${url}";
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${algo} = "${hash}";
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};
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}`
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}
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}
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const HEAD = `
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{ fetchurl, fetchgit, linkFarm, runCommand, gnutar }: rec {
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offline_cache = linkFarm "offline" packages;
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packages = [
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`.trim()
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// Object -> String
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function generateNix(pkgs, builtinFetchGit) {
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const nameWithVersionAndPackageNix = R.map(fetchLockedDep(builtinFetchGit), pkgs)
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const packagesDefinition = R.join(
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'\n',
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R.values(nameWithVersionAndPackageNix),
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)
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return R.join('\n', [HEAD, packagesDefinition, ' ];', '}'])
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}
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module.exports = generateNix
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