From ba070999952c21aadfcfc2849c4a7c7c1c306141 Mon Sep 17 00:00:00 2001
From: Michal Szelag <michal.szelag@sonos.com>
Date: Sun, 15 Mar 2026 08:47:49 -0400
Subject: [PATCH 1/2] fix: create ~/.gemini directory before CLI invocation to
 prevent ENOENT

Gemini CLI 0.33.0 writes a user-level project registry at
~/.gemini/projects.json during cleanup. The atomic write fails with
ENOENT if ~/.gemini/ doesn't exist. Add mkdir -p before the first
gemini command to ensure the directory is present.
---
 action.yml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/action.yml b/action.yml
index 7eccaf14b..0e8df8e6d 100644
--- a/action.yml
+++ b/action.yml
@@ -265,6 +265,7 @@ runs:
           npm run bundle
           npm install --silent --no-audit --prefer-offline --global .
         fi
+        mkdir -p "${HOME}/.gemini"
         echo "Verifying installation:"
         if command -v gemini >/dev/null 2>&1; then
           gemini --version || echo "Gemini CLI installed successfully (version command not available)"

From c884dac565aa8d5db159ad216adb0503ddd88d81 Mon Sep 17 00:00:00 2001
From: Michal Szelag <michal.szelag@sonos.com>
Date: Sun, 15 Mar 2026 19:47:12 -0400
Subject: [PATCH 2/2] fix: pre-seed projects.json to prevent concurrent-save
 race in Gemini CLI

The previous mkdir-only fix was insufficient. Gemini CLI 0.33.0 runs
cleanupCheckpoints() and cleanupToolOutputFiles() concurrently via
Promise.all. Both initialize a ProjectRegistry that writes to the same
projects.json.tmp file. When the registry file doesn't exist, both call
save() without locking, causing a race where one rename succeeds and the
other gets ENOENT because the tmp file was already renamed away.

Pre-seeding projects.json with valid empty data causes both concurrent
callers to skip the unguarded initial save and go straight to
proper-lockfile's lock(), which properly serializes access.
---
 action.yml | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/action.yml b/action.yml
index 0e8df8e6d..3ea295b0c 100644
--- a/action.yml
+++ b/action.yml
@@ -266,6 +266,9 @@ runs:
           npm install --silent --no-audit --prefer-offline --global .
         fi
         mkdir -p "${HOME}/.gemini"
+        if [[ ! -f "${HOME}/.gemini/projects.json" ]]; then
+          echo '{"projects":{}}' > "${HOME}/.gemini/projects.json"
+        fi
         echo "Verifying installation:"
         if command -v gemini >/dev/null 2>&1; then
           gemini --version || echo "Gemini CLI installed successfully (version command not available)"