From 487527dcffa66b352fda5f19568edf539a3ac3a4 Mon Sep 17 00:00:00 2001
From: Zoltan Kochan <z@kochan.io>
Date: Sat, 25 Jun 2022 04:04:54 +0300
Subject: [PATCH] fix: install --lockfile-only should exit early

ref #4910
---
 .changeset/metal-wasps-impress.md  | 6 ++++++
 packages/core/src/install/index.ts | 4 +++-
 2 files changed, 9 insertions(+), 1 deletion(-)
 create mode 100644 .changeset/metal-wasps-impress.md

diff --git a/.changeset/metal-wasps-impress.md b/.changeset/metal-wasps-impress.md
new file mode 100644
index 00000000000..6fec366c340
--- /dev/null
+++ b/.changeset/metal-wasps-impress.md
@@ -0,0 +1,6 @@
+---
+"@pnpm/core": patch
+"pnpm": patch
+---
+
+Return early when the lockfile is up-to-date.
diff --git a/packages/core/src/install/index.ts b/packages/core/src/install/index.ts
index b2c1170e779..cdc9fb08f77 100644
--- a/packages/core/src/install/index.ts
+++ b/packages/core/src/install/index.ts
@@ -265,7 +265,6 @@ export async function mutateModules (
       opts.frozenLockfileIfExists && ctx.existsWantedLockfile
     if (
       !ctx.lockfileHadConflicts &&
-      !opts.lockfileOnly &&
       !opts.update &&
       !opts.fixLockfile &&
       installsOnly &&
@@ -289,6 +288,9 @@ export async function mutateModules (
           hint: 'Note that in CI environments this setting is true by default. If you still need to run install in such cases, use "pnpm install --no-frozen-lockfile"',
         })
       }
+      if (opts.lockfileOnly) {
+        return projects
+      }
       if (!ctx.existsWantedLockfile) {
         if (ctx.projects.some((project) => pkgHasDependencies(project.manifest))) {
           throw new Error(`Headless installation requires a ${WANTED_LOCKFILE} file`)