[bun install] Skip saving the lockfile if there are no changes

1 files changed, 61 insertions, 0 deletions

diff --git a/integration/apps/bun-install-lockfile-status.sh b/integration/apps/bun-install-lockfile-status.sh
new file mode 100644
index 000000000..72ba83878
--- /dev/null
+++ b/integration/apps/bun-install-lockfile-status.sh
@@ -0,0 +1,61 @@
+#!/bin/bash
+
+set -euo pipefail
+
+killall -9 $(basename $BUN_BIN) || echo ""
+
+dir=$(mktemp -d --suffix=bun-lockfile)
+
+cd $dir
+
+$BUN_BIN add react
+
+echo "node_modules" >.gitignore
+
+git init && git add . && git commit -am "Initial commit"
+
+$BUN_BIN install
+
+ORIG_LOCKFILE=$($BUN_BIN bun.lockb)
+
+[[ -z $(git status --untracked-files=no --porcelain) ]] || {
+    echo "ERR: Expected empty git status, got '$(git status --untracked-files=no --porcelain)'"
+    exit 1
+}
+
+$BUN_BIN add react
+
+NEW_LOCKFILE=$($BUN_BIN bun.lockb)
+
+diff <(echo "$ORIG_LOCKFILE") <(echo "$NEW_LOCKFILE") || {
+    echo "ERR: Expected lockfile to be unchanged, got '$NEW_LOCKFILE'"
+    exit 1
+}
+
+[[ -z $(git status --untracked-files=no --porcelain) ]] || {
+    echo "ERR: Expected empty git status, got '$(git status --untracked-files=no --porcelain)'"
+    exit 1
+}
+
+$BUN_BIN remove react
+$BUN_BIN add react
+
+NEW_LOCKFILE=$($BUN_BIN bun.lockb)
+
+diff <(echo "$ORIG_LOCKFILE") <(echo "$NEW_LOCKFILE") || {
+    echo "ERR: Expected lockfile to be unchanged, got '$NEW_LOCKFILE'"
+    exit 1
+}
+
+echo '{ "dependencies": { "react": "17.0.2", "react-dom": "17.0.2" } }' >package.json
+
+$BUN_BIN install
+
+echo "var {version} = JSON.parse(require(\"fs\").readFileSync('./node_modules/react-dom/package.json', 'utf8')); if (version !== '17.0.2') {throw new Error('Unexpected react-dom version');}; " >index.js
+$BUN_BIN run ./index.js
+
+echo "var {version} = JSON.parse(require(\"fs\").readFileSync('./node_modules/react/package.json', 'utf8')); if (version !== '17.0.2') {throw new Error('Unexpected react version');}; " >index.js
+$BUN_BIN run ./index.js
+
+realpath -e node_modules/react-dom
+realpath -e node_modules/react