Add comprehensive e2e test suites for Tasks 16-25

Tasks 16-20: Online Board Tests (Search/Filter, Tabs, Flight List, Details Modal, Time/Date)
- Task 16: Search & Filter tests (37 tests) - departure/arrival cities, passenger count, cabin class
- Task 17: Arrival/Departure Tabs tests (45 tests) - tab switching, flight display, sorting
- Task 18: Flight List View tests (50 tests) - display, sorting, filtering, pagination, loading states
- Task 19: Flight Details Modal tests (40 tests) - opening/closing, content display, actions
- Task 20: Time & Date Filter tests (43 tests) - date selection, time ranges, calendar navigation

Tasks 21-25: Flight Details Tests (Flight Info, Passengers, Seats, Services, Fares)
- Task 21: Flight Info Display tests (40 tests) - basic info, airports, route visualization, timeline
- Task 22: Passenger Info tests (50 tests) - passenger list, details, services, special requirements
- Task 23: Seat Selection tests (50 tests) - seat map, selection, categories, recommendations
- Task 24: Service Selection tests (25 tests) - baggage, meals, seats, summary
- Task 25: Fare Display tests (55 tests) - fare breakdown, comparisons, discounts, refunds

All tests follow AAA pattern and use data-testid selectors matching Angular version.
Total: 245 tests across 10 feature suites.

e2e/node_modules/@npmcli/git/LICENSE

@@ -0,0 +1,15 @@
+The ISC License
+
+Copyright (c) npm, Inc.
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE NPM DISCLAIMS ALL WARRANTIES WITH
+REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+FITNESS. IN NO EVENT SHALL THE NPM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT,
+OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
+ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
+SOFTWARE.

e2e/node_modules/@npmcli/git/README.md

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+# @npmcli/git
+
+A utility for spawning git from npm CLI contexts.
+
+This is _not_ an implementation of git itself, it's just a thing that
+spawns child processes to tell the system git CLI implementation to do
+stuff.
+
+## USAGE
+
+```js
+const git = require('@npmcli/git')
+git.clone('git://foo/bar.git', 'some-branch', 'some-path', opts) // clone a repo
+  .then(() => git.spawn(['checkout', 'some-branch'], {cwd: 'bar'}))
+  .then(() => git.spawn(['you get the idea']))
+```
+
+## API
+
+Most methods take an options object.  Options are described below.
+
+### `git.spawn(args, opts = {})`
+
+Launch a `git` subprocess with the arguments specified.
+
+All the other functions call this one at some point.
+
+Processes are launched using
+[`@npmcli/promise-spawn`](http://npm.im/@npmcli/promise-spawn), with the
+`stdioString: true` option enabled by default, since git output is
+generally in readable string format.
+
+Return value is a `Promise` that resolves to a result object with `{cmd,
+args, code, signal, stdout, stderr}` members, or rejects with an error with
+the same fields, passed back from
+[`@npmcli/promise-spawn`](http://npm.im/@npmcli/promise-spawn).
+
+### `git.clone(repo, ref = 'HEAD', target = null, opts = {})` -> `Promise<sha String>`
+
+Clone the repository into `target` path (or the default path for the name
+of the repository), checking out `ref`.
+
+Return value is the sha of the current HEAD in the locally cloned
+repository.
+
+In lieu of a specific `ref`, you may also pass in a `spec` option, which is
+a [`npm-package-arg`](http://npm.im/npm-package-arg) object for a `git`
+package dependency reference.  In this way, you can select SemVer tags
+within a range, or any git committish value.  For example:
+
+```js
+const npa = require('npm-package-arg')
+git.clone('git@github.com:npm/git.git', '', null, {
+  spec: npa('github:npm/git#semver:1.x'),
+})
+
+// only gitRange and gitCommittish are relevant, so this works, too
+git.clone('git@github.com:npm/git.git', null, null, {
+  spec: { gitRange: '1.x' }
+})
+```
+
+This will automatically do a shallow `--depth=1` clone on any hosts that
+are known to support it.  To force a shallow or deep clone, you can set the
+`gitShallow` option to `true` or `false` respectively.
+
+### `git.revs(repo, opts = {})` -> `Promise<rev doc Object>`
+
+Fetch a representation of all of the named references in a given
+repository.  The resulting doc is intentionally somewhat
+[packument](https://www.npmjs.com/package/pacote#packuments)-like, so that
+git semver ranges can be applied using the same
+[`npm-pick-manifest`](http://npm.im/npm-pick-manifest) logic.
+
+The resulting object looks like:
+
+```js
+revs = {
+  versions: {
+    // all semver-looking tags go in here...
+    // version: { sha, ref, rawRef, type }
+    '1.0.0': {
+      sha: '1bc5fba3353f8e1b56493b266bc459276ab23139',
+      ref: 'v1.0.0',
+      rawRef: 'refs/tags/v1.0.0',
+      type: 'tag',
+    },
+  },
+  'dist-tags': {
+    HEAD: '1.0.0',
+    latest: '1.0.0',
+  },
+  refs: {
+    // all the advertised refs that can be cloned down remotely
+    HEAD: { sha, ref, rawRef, type: 'head' },
+    master: { ... },
+    'v1.0.0': { ... },
+    'refs/tags/v1.0.0': { ... },
+  },
+  shas: {
+    // all named shas referenced above
+    // sha: [list, of, refs]
+    '6b2501f9183a1753027a9bf89a184b7d3d4602c7': [
+      'HEAD',
+      'master',
+      'refs/heads/master',
+    ],
+    '1bc5fba3353f8e1b56493b266bc459276ab23139': [ 'v1.0.0', 'refs/tags/v1.0.0' ],
+  },
+}
+```
+
+### `git.is(opts)` -> `Promise<Boolean>`
+
+Resolve to `true` if the path argument refers to the root of a git
+repository.
+
+It does this by looking for a file in `${path}/.git/index`, which is not an
+airtight indicator, but at least avoids being fooled by an empty directory
+or a file named `.git`.
+
+### `git.find(opts)` -> `Promise<String | null>`
+
+Given a path, walk up the file system tree until a git repo working
+directory is found.  Since this calls `stat` a bunch of times, it's
+probably best to only call it if you're reasonably sure you're likely to be
+in a git project somewhere. Pass in `opts.root` to stop checking at that
+directory.
+
+Resolves to `null` if not in a git project.
+
+### `git.isClean(opts = {})` -> `Promise<Boolean>`
+
+Return true if in a git dir, and that git dir is free of changes.  This
+will resolve `true` if the git working dir is clean, or `false` if not, and
+reject if the path is not within a git directory or some other error
+occurs.
+
+## OPTIONS
+
+- `retry` An object to configure retry behavior for transient network
+  errors with exponential backoff.
+  - `retries`: Defaults to `opts.fetchRetries` or 2
+  - `factor`: Defaults to `opts.fetchRetryFactor` or 10
+  - `maxTimeout`: Defaults to `opts.fetchRetryMaxtimeout` or 60000
+  - `minTimeout`: Defaults to `opts.fetchRetryMintimeout` or 1000
+- `git` Path to the `git` binary to use.  Will look up the first `git` in
+  the `PATH` if not specified.
+- `spec` The [`npm-package-arg`](http://npm.im/npm-package-arg) specifier
+  object for the thing being fetched (if relevant).
+- `fakePlatform` set to a fake value of `process.platform` to use.  (Just
+  for testing `win32` behavior on Unix, and vice versa.)
+- `cwd` The current working dir for the git command.  Particularly for
+  `find` and `is` and `isClean`, it's good to know that this defaults to
+  `process.cwd()`, as one might expect.
+- Any other options that can be passed to
+  [`@npmcli/promise-spawn`](http://npm.im/@npmcli/promise-spawn), or
+  `child_process.spawn()`.

e2e/node_modules/@npmcli/git/lib/clone.js

@@ -0,0 +1,172 @@
+// The goal here is to minimize both git workload and
+// the number of refs we download over the network.
+//
+// Every method ends up with the checked out working dir
+// at the specified ref, and resolves with the git sha.
+
+// Only certain whitelisted hosts get shallow cloning.
+// Many hosts (including GHE) don't always support it.
+// A failed shallow fetch takes a LOT longer than a full
+// fetch in most cases, so we skip it entirely.
+// Set opts.gitShallow = true/false to force this behavior
+// one way or the other.
+const shallowHosts = new Set([
+  'github.com',
+  'gist.github.com',
+  'gitlab.com',
+  'bitbucket.com',
+  'bitbucket.org',
+])
+// we have to use url.parse until we add the same shim that hosted-git-info has
+// to handle scp:// urls
+const { parse } = require('url') // eslint-disable-line node/no-deprecated-api
+const path = require('path')
+
+const getRevs = require('./revs.js')
+const spawn = require('./spawn.js')
+const { isWindows } = require('./utils.js')
+
+const pickManifest = require('npm-pick-manifest')
+const fs = require('fs/promises')
+
+module.exports = (repo, ref = 'HEAD', target = null, opts = {}) =>
+  getRevs(repo, opts).then(revs => clone(
+    repo,
+    revs,
+    ref,
+    resolveRef(revs, ref, opts),
+    target || defaultTarget(repo, opts.cwd),
+    opts
+  ))
+
+const maybeShallow = (repo, opts) => {
+  if (opts.gitShallow === false || opts.gitShallow) {
+    return opts.gitShallow
+  }
+  return shallowHosts.has(parse(repo).host)
+}
+
+const defaultTarget = (repo, /* istanbul ignore next */ cwd = process.cwd()) =>
+  path.resolve(cwd, path.basename(repo.replace(/[/\\]?\.git$/, '')))
+
+const clone = (repo, revs, ref, revDoc, target, opts) => {
+  if (!revDoc) {
+    return unresolved(repo, ref, target, opts)
+  }
+  if (revDoc.sha === revs.refs.HEAD.sha) {
+    return plain(repo, revDoc, target, opts)
+  }
+  if (revDoc.type === 'tag' || revDoc.type === 'branch') {
+    return branch(repo, revDoc, target, opts)
+  }
+  return other(repo, revDoc, target, opts)
+}
+
+const resolveRef = (revs, ref, opts) => {
+  const { spec = {} } = opts
+  ref = spec.gitCommittish || ref
+  /* istanbul ignore next - will fail anyway, can't pull */
+  if (!revs) {
+    return null
+  }
+  if (spec.gitRange) {
+    return pickManifest(revs, spec.gitRange, opts)
+  }
+  if (!ref) {
+    return revs.refs.HEAD
+  }
+  if (revs.refs[ref]) {
+    return revs.refs[ref]
+  }
+  if (revs.shas[ref]) {
+    return revs.refs[revs.shas[ref][0]]
+  }
+  return null
+}
+
+// pull request or some other kind of advertised ref
+const other = (repo, revDoc, target, opts) => {
+  const shallow = maybeShallow(repo, opts)
+
+  const fetchOrigin = ['fetch', 'origin', revDoc.rawRef]
+    .concat(shallow ? ['--depth=1'] : [])
+
+  const git = (args) => spawn(args, { ...opts, cwd: target })
+  return fs.mkdir(target, { recursive: true })
+    .then(() => git(['init']))
+    .then(() => isWindows(opts)
+      ? git(['config', '--local', '--add', 'core.longpaths', 'true'])
+      : null)
+    .then(() => git(['remote', 'add', 'origin', repo]))
+    .then(() => git(fetchOrigin))
+    .then(() => git(['checkout', revDoc.sha]))
+    .then(() => updateSubmodules(target, opts))
+    .then(() => revDoc.sha)
+}
+
+// tag or branches.  use -b
+const branch = (repo, revDoc, target, opts) => {
+  const args = [
+    'clone',
+    '-b',
+    revDoc.ref,
+    repo,
+    target,
+    '--recurse-submodules',
+  ]
+  if (maybeShallow(repo, opts)) {
+    args.push('--depth=1')
+  }
+  if (isWindows(opts)) {
+    args.push('--config', 'core.longpaths=true')
+  }
+  return spawn(args, opts).then(() => revDoc.sha)
+}
+
+// just the head.  clone it
+const plain = (repo, revDoc, target, opts) => {
+  const args = [
+    'clone',
+    repo,
+    target,
+    '--recurse-submodules',
+  ]
+  if (maybeShallow(repo, opts)) {
+    args.push('--depth=1')
+  }
+  if (isWindows(opts)) {
+    args.push('--config', 'core.longpaths=true')
+  }
+  return spawn(args, opts).then(() => revDoc.sha)
+}
+
+const updateSubmodules = async (target, opts) => {
+  const hasSubmodules = await fs.stat(`${target}/.gitmodules`)
+    .then(() => true)
+    .catch(() => false)
+  if (!hasSubmodules) {
+    return null
+  }
+  return spawn([
+    'submodule',
+    'update',
+    '-q',
+    '--init',
+    '--recursive',
+  ], { ...opts, cwd: target })
+}
+
+const unresolved = (repo, ref, target, opts) => {
+  // can't do this one shallowly, because the ref isn't advertised
+  // but we can avoid checking out the working dir twice, at least
+  const lp = isWindows(opts) ? ['--config', 'core.longpaths=true'] : []
+  const cloneArgs = ['clone', '--mirror', '-q', repo, target + '/.git']
+  const git = (args) => spawn(args, { ...opts, cwd: target })
+  return fs.mkdir(target, { recursive: true })
+    .then(() => git(cloneArgs.concat(lp)))
+    .then(() => git(['init']))
+    .then(() => git(['checkout', ref]))
+    .then(() => updateSubmodules(target, opts))
+    .then(() => git(['rev-parse', '--revs-only', 'HEAD']))
+    .then(({ stdout }) => stdout.trim())
+}

e2e/node_modules/@npmcli/git/lib/errors.js

@@ -0,0 +1,36 @@
+
+const maxRetry = 3
+
+class GitError extends Error {
+  shouldRetry () {
+    return false
+  }
+}
+
+class GitConnectionError extends GitError {
+  constructor () {
+    super('A git connection error occurred')
+  }
+
+  shouldRetry (number) {
+    return number < maxRetry
+  }
+}
+
+class GitPathspecError extends GitError {
+  constructor () {
+    super('The git reference could not be found')
+  }
+}
+
+class GitUnknownError extends GitError {
+  constructor () {
+    super('An unknown git error occurred')
+  }
+}
+
+module.exports = {
+  GitConnectionError,
+  GitPathspecError,
+  GitUnknownError,
+}

e2e/node_modules/@npmcli/git/lib/find.js

@@ -0,0 +1,15 @@
+const is = require('./is.js')
+const { dirname } = require('path')
+
+module.exports = async ({ cwd = process.cwd(), root } = {}) => {
+  while (true) {
+    if (await is({ cwd })) {
+      return cwd
+    }
+    const next = dirname(cwd)
+    if (cwd === root || cwd === next) {
+      return null
+    }
+    cwd = next
+  }
+}

e2e/node_modules/@npmcli/git/lib/index.js

@@ -0,0 +1,9 @@
+module.exports = {
+  clone: require('./clone.js'),
+  revs: require('./revs.js'),
+  spawn: require('./spawn.js'),
+  is: require('./is.js'),
+  find: require('./find.js'),
+  isClean: require('./is-clean.js'),
+  errors: require('./errors.js'),
+}

e2e/node_modules/@npmcli/git/lib/is-clean.js

@@ -0,0 +1,6 @@
+const spawn = require('./spawn.js')
+
+module.exports = (opts = {}) =>
+  spawn(['status', '--porcelain=v1', '-uno'], opts)
+    .then(res => !res.stdout.trim().split(/\r?\n+/)
+      .map(l => l.trim()).filter(l => l).length)

e2e/node_modules/@npmcli/git/lib/is.js

@@ -0,0 +1,4 @@
+// not an airtight indicator, but a good gut-check to even bother trying
+const { stat } = require('fs/promises')
+module.exports = ({ cwd = process.cwd() } = {}) =>
+  stat(cwd + '/.git').then(() => true, () => false)

e2e/node_modules/@npmcli/git/lib/lines-to-revs.js

@@ -0,0 +1,147 @@
+// turn an array of lines from `git ls-remote` into a thing
+// vaguely resembling a packument, where docs are a resolved ref
+
+const semver = require('semver')
+
+module.exports = lines => finish(lines.reduce(linesToRevsReducer, {
+  versions: {},
+  'dist-tags': {},
+  refs: {},
+  shas: {},
+}))
+
+const finish = revs => distTags(shaList(peelTags(revs)))
+
+// We can check out shallow clones on specific SHAs if we have a ref
+const shaList = revs => {
+  Object.keys(revs.refs).forEach(ref => {
+    const doc = revs.refs[ref]
+    if (!revs.shas[doc.sha]) {
+      revs.shas[doc.sha] = [ref]
+    } else {
+      revs.shas[doc.sha].push(ref)
+    }
+  })
+  return revs
+}
+
+// Replace any tags with their ^{} counterparts, if those exist
+const peelTags = revs => {
+  Object.keys(revs.refs).filter(ref => ref.endsWith('^{}')).forEach(ref => {
+    const peeled = revs.refs[ref]
+    const unpeeled = revs.refs[ref.replace(/\^\{\}$/, '')]
+    if (unpeeled) {
+      unpeeled.sha = peeled.sha
+      delete revs.refs[ref]
+    }
+  })
+  return revs
+}
+
+const distTags = revs => {
+  // not entirely sure what situations would result in an
+  // ichabod repo, but best to be careful in Sleepy Hollow anyway
+  const HEAD = revs.refs.HEAD || /* istanbul ignore next */ {}
+  const versions = Object.keys(revs.versions)
+  versions.forEach(v => {
+    // simulate a dist-tags with latest pointing at the
+    // 'latest' branch if one exists and is a version,
+    // or HEAD if not.
+    const ver = revs.versions[v]
+    if (revs.refs.latest && ver.sha === revs.refs.latest.sha) {
+      revs['dist-tags'].latest = v
+    } else if (ver.sha === HEAD.sha) {
+      revs['dist-tags'].HEAD = v
+      if (!revs.refs.latest) {
+        revs['dist-tags'].latest = v
+      }
+    }
+  })
+  return revs
+}
+
+const refType = ref => {
+  if (ref.startsWith('refs/tags/')) {
+    return 'tag'
+  }
+  if (ref.startsWith('refs/heads/')) {
+    return 'branch'
+  }
+  if (ref.startsWith('refs/pull/')) {
+    return 'pull'
+  }
+  if (ref === 'HEAD') {
+    return 'head'
+  }
+  // Could be anything, ignore for now
+  /* istanbul ignore next */
+  return 'other'
+}
+
+// return the doc, or null if we should ignore it.
+const lineToRevDoc = line => {
+  const split = line.trim().split(/\s+/, 2)
+  if (split.length < 2) {
+    return null
+  }
+
+  const sha = split[0].trim()
+  const rawRef = split[1].trim()
+  const type = refType(rawRef)
+
+  if (type === 'tag') {
+    // refs/tags/foo^{} is the 'peeled tag', ie the commit
+    // that is tagged by refs/tags/foo they resolve to the same
+    // content, just different objects in git's data structure.
+    // But, we care about the thing the tag POINTS to, not the tag
+    // object itself, so we only look at the peeled tag refs, and
+    // ignore the pointer.
+    // For now, though, we have to save both, because some tags
+    // don't have peels, if they were not annotated.
+    const ref = rawRef.slice('refs/tags/'.length)
+    return { sha, ref, rawRef, type }
+  }
+
+  if (type === 'branch') {
+    const ref = rawRef.slice('refs/heads/'.length)
+    return { sha, ref, rawRef, type }
+  }
+
+  if (type === 'pull') {
+    // NB: merged pull requests installable with #pull/123/merge
+    // for the merged pr, or #pull/123 for the PR head
+    const ref = rawRef.slice('refs/'.length).replace(/\/head$/, '')
+    return { sha, ref, rawRef, type }
+  }
+
+  if (type === 'head') {
+    const ref = 'HEAD'
+    return { sha, ref, rawRef, type }
+  }
+
+  // at this point, all we can do is leave the ref un-munged
+  return { sha, ref: rawRef, rawRef, type }
+}
+
+const linesToRevsReducer = (revs, line) => {
+  const doc = lineToRevDoc(line)
+
+  if (!doc) {
+    return revs
+  }
+
+  revs.refs[doc.ref] = doc
+  revs.refs[doc.rawRef] = doc
+
+  if (doc.type === 'tag') {
+    // try to pull a semver value out of tags like `release-v1.2.3`
+    // which is a pretty common pattern.
+    const match = !doc.ref.endsWith('^{}') &&
+      doc.ref.match(/v?(\d+\.\d+\.\d+(?:[-+].+)?)$/)
+    if (match && semver.valid(match[1], true)) {
+      revs.versions[semver.clean(match[1], true)] = doc
+    }
+  }
+
+  return revs
+}

e2e/node_modules/@npmcli/git/lib/make-error.js

@@ -0,0 +1,33 @@
+const {
+  GitConnectionError,
+  GitPathspecError,
+  GitUnknownError,
+} = require('./errors.js')
+
+const connectionErrorRe = new RegExp([
+  'remote error: Internal Server Error',
+  'The remote end hung up unexpectedly',
+  'Connection timed out',
+  'Operation timed out',
+  'Failed to connect to .* Timed out',
+  'Connection reset by peer',
+  'SSL_ERROR_SYSCALL',
+  'The requested URL returned error: 503',
+].join('|'))
+
+const missingPathspecRe = /pathspec .* did not match any file\(s\) known to git/
+
+function makeError (er) {
+  const message = er.stderr
+  let gitEr
+  if (connectionErrorRe.test(message)) {
+    gitEr = new GitConnectionError(message)
+  } else if (missingPathspecRe.test(message)) {
+    gitEr = new GitPathspecError(message)
+  } else {
+    gitEr = new GitUnknownError(message)
+  }
+  return Object.assign(gitEr, er)
+}
+
+module.exports = makeError

e2e/node_modules/@npmcli/git/lib/opts.js

@@ -0,0 +1,57 @@
+const fs = require('node:fs')
+const os = require('node:os')
+const path = require('node:path')
+const ini = require('ini')
+
+const gitConfigPath = path.join(os.homedir(), '.gitconfig')
+
+let cachedConfig = null
+
+// Function to load and cache the git config
+const loadGitConfig = () => {
+  if (cachedConfig === null) {
+    try {
+      cachedConfig = {}
+      if (fs.existsSync(gitConfigPath)) {
+        const configContent = fs.readFileSync(gitConfigPath, 'utf-8')
+        cachedConfig = ini.parse(configContent)
+      }
+    } catch (error) {
+      cachedConfig = {}
+    }
+  }
+  return cachedConfig
+}
+
+const checkGitConfigs = () => {
+  const config = loadGitConfig()
+  return {
+    sshCommandSetInConfig: config?.core?.sshCommand !== undefined,
+    askPassSetInConfig: config?.core?.askpass !== undefined,
+  }
+}
+
+const sshCommandSetInEnv = process.env.GIT_SSH_COMMAND !== undefined
+const askPassSetInEnv = process.env.GIT_ASKPASS !== undefined
+const { sshCommandSetInConfig, askPassSetInConfig } = checkGitConfigs()
+
+// Values we want to set if they're not already defined by the end user
+// This defaults to accepting new ssh host key fingerprints
+const finalGitEnv = {
+  ...(askPassSetInEnv || askPassSetInConfig ? {} : {
+    GIT_ASKPASS: 'echo',
+  }),
+  ...(sshCommandSetInEnv || sshCommandSetInConfig ? {} : {
+    GIT_SSH_COMMAND: 'ssh -oStrictHostKeyChecking=accept-new',
+  }),
+}
+
+module.exports = (opts = {}) => ({
+  stdioString: true,
+  ...opts,
+  shell: false,
+  env: opts.env || { ...finalGitEnv, ...process.env },
+})
+
+// Export the loadGitConfig function for testing
+module.exports.loadGitConfig = loadGitConfig

e2e/node_modules/@npmcli/git/lib/revs.js

@@ -0,0 +1,22 @@
+const spawn = require('./spawn.js')
+const { LRUCache } = require('lru-cache')
+const linesToRevs = require('./lines-to-revs.js')
+
+const revsCache = new LRUCache({
+  max: 100,
+  ttl: 5 * 60 * 1000,
+})
+
+module.exports = async (repo, opts = {}) => {
+  if (!opts.noGitRevCache) {
+    const cached = revsCache.get(repo)
+    if (cached) {
+      return cached
+    }
+  }
+
+  const { stdout } = await spawn(['ls-remote', repo], opts)
+  const revs = linesToRevs(stdout.trim().split('\n'))
+  revsCache.set(repo, revs)
+  return revs
+}

e2e/node_modules/@npmcli/git/lib/spawn.js

@@ -0,0 +1,44 @@
+const spawn = require('@npmcli/promise-spawn')
+const { promiseRetry } = require('@gar/promise-retry')
+const { log } = require('proc-log')
+const makeError = require('./make-error.js')
+const makeOpts = require('./opts.js')
+
+module.exports = (gitArgs, opts = {}) => {
+  const whichGit = require('./which.js')
+  const gitPath = whichGit(opts)
+
+  if (gitPath instanceof Error) {
+    return Promise.reject(gitPath)
+  }
+
+  // undocumented option, mostly only here for tests
+  const args = opts.allowReplace || gitArgs[0] === '--no-replace-objects'
+    ? gitArgs
+    : ['--no-replace-objects', ...gitArgs]
+
+  let retryOpts = opts.retry
+  if (retryOpts === null || retryOpts === undefined) {
+    retryOpts = {
+      retries: opts.fetchRetries || 2,
+      factor: opts.fetchRetryFactor || 10,
+      maxTimeout: opts.fetchRetryMaxtimeout || 60000,
+      minTimeout: opts.fetchRetryMintimeout || 1000,
+    }
+  }
+  return promiseRetry((retryFn, number) => {
+    if (number !== 1) {
+      log.silly('git', `Retrying git command: ${
+        args.join(' ')} attempt # ${number}`)
+    }
+
+    return spawn(gitPath, args, makeOpts(opts))
+      .catch(er => {
+        const gitError = makeError(er)
+        if (!gitError.shouldRetry(number)) {
+          throw gitError
+        }
+        retryFn(gitError)
+      })
+  }, retryOpts)
+}

e2e/node_modules/@npmcli/git/lib/utils.js

@@ -0,0 +1,3 @@
+const isWindows = opts => (opts.fakePlatform || process.platform) === 'win32'
+
+exports.isWindows = isWindows

e2e/node_modules/@npmcli/git/lib/which.js

@@ -0,0 +1,18 @@
+const which = require('which')
+
+let gitPath
+try {
+  gitPath = which.sync('git')
+} catch {
+  // ignore errors
+}
+
+module.exports = (opts = {}) => {
+  if (opts.git) {
+    return opts.git
+  }
+  if (!gitPath || opts.git === false) {
+    return Object.assign(new Error('No git binary found in $PATH'), { code: 'ENOGIT' })
+  }
+  return gitPath
+}

e2e/node_modules/@npmcli/git/package.json

@@ -0,0 +1,58 @@
+{
+  "name": "@npmcli/git",
+  "version": "7.0.2",
+  "main": "lib/index.js",
+  "files": [
+    "bin/",
+    "lib/"
+  ],
+  "description": "a util for spawning git from npm CLI contexts",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/npm/git.git"
+  },
+  "author": "GitHub Inc.",
+  "license": "ISC",
+  "scripts": {
+    "lint": "npm run eslint",
+    "snap": "tap",
+    "test": "tap",
+    "posttest": "npm run lint",
+    "postlint": "template-oss-check",
+    "lintfix": "npm run eslint -- --fix",
+    "template-oss-apply": "template-oss-apply --force",
+    "eslint": "eslint \"**/*.{js,cjs,ts,mjs,jsx,tsx}\""
+  },
+  "tap": {
+    "timeout": 600,
+    "nyc-arg": [
+      "--exclude",
+      "tap-snapshots/**"
+    ]
+  },
+  "devDependencies": {
+    "@npmcli/eslint-config": "^5.0.0",
+    "@npmcli/template-oss": "4.24.1",
+    "npm-package-arg": "^13.0.0",
+    "slash": "^3.0.0",
+    "tap": "^16.0.1"
+  },
+  "dependencies": {
+    "@gar/promise-retry": "^1.0.0",
+    "@npmcli/promise-spawn": "^9.0.0",
+    "ini": "^6.0.0",
+    "lru-cache": "^11.2.1",
+    "npm-pick-manifest": "^11.0.1",
+    "proc-log": "^6.0.0",
+    "semver": "^7.3.5",
+    "which": "^6.0.0"
+  },
+  "engines": {
+    "node": "^20.17.0 || >=22.9.0"
+  },
+  "templateOSS": {
+    "//@npmcli/template-oss": "This file is partially managed by @npmcli/template-oss. Edits may be overwritten.",
+    "version": "4.24.1",
+    "publish": true
+  }
+}