Add support for latest release (#269)

test/setup-beam.test.js

@@ -14,6 +14,48 @@ const core = require('@actions/core')
 const setupBeam = require('../src/setup-beam')
 const { problemMatcher } = require('../matchers/elixir-matchers.json')
 
+const matrix = {
+  otp: {
+    'ubuntu-18.04': parseBuild('test/otp/ubuntu-18.04/builds.txt'),
+    'ubuntu-20.04': parseBuild('test/otp/ubuntu-20.04/builds.txt'),
+    'ubuntu-22.04': parseBuild('test/otp/ubuntu-22.04/builds.txt'),
+    'ubuntu-24.04': parseBuild('test/otp/ubuntu-24.04/builds.txt'),
+    windows: parseReleases('test/otp/releases.json'),
+  },
+  elixir: parseBuild('test/elixir/builds.txt'),
+  gleam: parseReleases('test/gleam/releases.json'),
+  rebar3: parseReleases('test/rebar3/releases.json'),
+}
+
+function parseBuild(version) {
+  let versions = {}
+  fs.readFileSync(path.join(process.cwd(), version), 'utf8')
+    .trim()
+    .split('\n')
+    .forEach((line) => (versions[line.split(' ')[0]] = line.split(' ')[0]))
+  return versions
+}
+
+function parseReleases(version) {
+  let versions = {}
+  let data = fs.readFileSync(path.join(process.cwd(), version), 'utf8')
+  let json = JSON.parse(data)
+  if (version.includes('otp')) {
+    json
+      .map((x) => x.assets)
+      .flat()
+      .filter((x) => x.name.match(/^otp_win64_.*.exe$/))
+      .forEach((x) => {
+        let v = x.name.match(/^otp_win64_(.*).exe$/)[1]
+        versions[v] = v
+      })
+    return versions
+  } else {
+    json.map((x) => (versions[x.tag_name] = x.tag_name))
+    return versions
+  }
+}
+
 async function all() {
   await testFailInstallOTP()
   await testFailInstallElixir()
@@ -302,7 +344,6 @@ async function testElixirVersions() {
   got = await setupBeam.getElixirVersion(spec, otpVersion)
   assert.deepStrictEqual(got, expected)
   simulateInput('version-type', before)
-
   simulateInput('hexpm-mirrors', hexMirrors, { multiline: true })
 }
 
@@ -395,7 +436,7 @@ async function testGetVersionFromSpec() {
     '12.1.2.3',
     '12.1.2.3.0',
   ]
-  const versions = {}
+  let versions = {}
   versions0.forEach((version) => {
     versions[version] = version
   })
@@ -526,6 +567,76 @@ async function testGetVersionFromSpec() {
   got = setupBeam.getVersionFromSpec(spec, versions)
   assert.deepStrictEqual(got, expected)
   simulateInput('version-type', before)
+
+  spec = 'latest'
+  expected = '24.0'
+  got = setupBeam.getVersionFromSpec(spec, versions)
+  assert.deepStrictEqual(got, expected)
+
+  versions = {
+    '27.0.0-rc3': '27.0.0-rc3',
+    '27.0.0-rc2': '27.0.0-rc2',
+  }
+  spec = 'latest'
+  expected = '27.0.0-rc3'
+  got = setupBeam.getVersionFromSpec(spec, versions)
+  assert.deepStrictEqual(got, expected)
+
+  versions = {
+    '27.0.0-rc3': '27.0.0-rc3',
+    '27.0.0-rc2': '27.0.0-rc2',
+    '27.0.0': '27.0.0',
+  }
+  spec = 'latest'
+  expected = '27.0.0'
+  got = setupBeam.getVersionFromSpec(spec, versions)
+  assert.deepStrictEqual(got, expected)
+
+  versions = { '25.3.2.8': '25.3.2.8', '25.3.2.12': '25.3.2.12' }
+  spec = 'latest'
+  expected = '25.3.2.12'
+  got = setupBeam.getVersionFromSpec(spec, versions)
+  assert.deepStrictEqual(got, expected)
+
+  spec = 'latest'
+  expected = 'OTP-26.2.1'
+  got = setupBeam.getVersionFromSpec(spec, matrix.otp['ubuntu-18.04'])
+  assert.deepStrictEqual(got, expected)
+
+  spec = 'latest'
+  expected = 'OTP-27.0-rc3'
+  got = setupBeam.getVersionFromSpec(spec, matrix.otp['ubuntu-20.04'])
+  assert.deepStrictEqual(got, expected)
+
+  spec = 'latest'
+  expected = 'OTP-27.0-rc3'
+  got = setupBeam.getVersionFromSpec(spec, matrix.otp['ubuntu-22.04'])
+  assert.deepStrictEqual(got, expected)
+
+  spec = 'latest'
+  expected = 'OTP-27.0'
+  got = setupBeam.getVersionFromSpec(spec, matrix.otp['ubuntu-24.04'])
+  assert.deepStrictEqual(got, expected)
+
+  spec = 'latest'
+  expected = '27.0-rc3'
+  got = setupBeam.getVersionFromSpec(spec, matrix.otp.windows)
+  assert.deepStrictEqual(got, expected)
+
+  spec = 'latest'
+  expected = 'v1.16.2'
+  got = setupBeam.getVersionFromSpec(spec, matrix.elixir)
+  assert.deepStrictEqual(got, expected)
+
+  spec = 'latest'
+  expected = 'v1.1.0'
+  got = setupBeam.getVersionFromSpec(spec, matrix.gleam)
+  assert.deepStrictEqual(got, expected)
+
+  spec = 'latest'
+  expected = '3.23.0'
+  got = setupBeam.getVersionFromSpec(spec, matrix.rebar3)
+  assert.deepStrictEqual(got, expected)
 }
 
 async function testParseVersionFile() {
@@ -542,8 +653,7 @@ async function testParseVersionFile() {
 erlang   ref:v${erlang}# comment, no space, and ref:v
 elixir ref:${elixir}  # comment, with space and ref:
  not-gleam 0.23 # not picked up
-gleam ${gleam} 
-rebar ${rebar3}`
+gleam ${gleam} \nrebar ${rebar3}`
   const filename = 'test/.tool-versions'
   fs.writeFileSync(filename, toolVersions)
   process.env.GITHUB_WORKSPACE = ''