From 5db227b05ba316713d6793e728b21366e8337721 Mon Sep 17 00:00:00 2001
From: "Alex Xu (Hello71)" <alex_y_xu@yahoo.ca>
Date: Sat, 4 Apr 2020 20:23:21 -0400
Subject: Initial commit

---
 nureadahead-init | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)
 create mode 100755 nureadahead-init

(limited to 'nureadahead-init')

diff --git a/nureadahead-init b/nureadahead-init
new file mode 100755
index 0000000..f8b315b
--- /dev/null
+++ b/nureadahead-init
@@ -0,0 +1,30 @@
+#!/bin/sh
+
+usage() {
+    echo "usage: nureadahead-init [FILE [TIMEOUT [INIT [ARGS...]]]]" >&2
+}
+
+case "$1" in
+    -*) usage; exit 1
+esac
+
+case "$#" in
+    0) file=/.nureadahead            timeout=120 init=init;;
+    1) file=$1                       timeout=120 init=init; shift 1;;
+    2) file=$1                       timeout=$2  init=init; shift 2;;
+    *) file=$1                       timeout=$2  init=$3;   shift 3;;
+esac
+
+export PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
+device=$(awk '$2 == "/" { d=$1 } END { print d }' < /proc/self/mounts)
+if [ -n "$device" ]; then
+    if [ -e "$file" ]; then
+        nureadahead-preload "$device" < "$file" &
+    else
+        echo "nureadahead-init: no file, skipping preload" >&2
+    fi
+    nureadahead-collect "$device" "$timeout" > "$file" &
+else
+    echo "nureadahead-init: cannot find root device, skipping preload + collect" >&2
+fi
+exec "$init" "$@"
-- 
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