1 files changed, 24 insertions, 0 deletions
diff --git a/deps/npm/node_modules/@npmcli/git/lib/revs.js b/deps/npm/node_modules/@npmcli/git/lib/revs.js
new file mode 100644
index 0000000000..5744731872
--- /dev/null
+++ b/deps/npm/node_modules/@npmcli/git/lib/revs.js
@@ -0,0 +1,24 @@
+const pinflight = require('promise-inflight')
+const spawn = require('./spawn.js')
+const LRU = require('lru-cache')
+
+const revsCache = new LRU({
+  max: 100,
+  maxAge: 5 * 60 * 1000,
+})
+
+const linesToRevs = require('./lines-to-revs.js')
+
+module.exports = (repo, opts = {}) => {
+  if (!opts.noGitRevCache) {
+    const cached = revsCache.get(repo)
+    if (cached)
+      return Promise.resolve(cached)
+  }
+
+  return pinflight(`ls-remote:${repo}`, () =>
+    spawn(['ls-remote', repo], opts)
+    .then(({stdout}) => linesToRevs(stdout.trim().split('\n')))
+    .then(revs => (revsCache.set(repo, revs), revs))
+  )
+}