From: Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>
Date: Sat, 26 Jul 2014 19:01:49 +0000 (-0400)
Subject: update-done: include a short description in .updated
X-Git-Tag: v216~429
X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=commitdiff_plain;h=4aa4d2ae9717d0f8656528a3197bbc0c256380b1

update-done: include a short description in .updated

People might be confused where the file comes from, since the name is not
at all specific.

https://bugzilla.redhat.com/show_bug.cgi?id=1121301#c8
---

diff --git a/src/update-done/update-done.c b/src/update-done/update-done.c
index b199a6897..db106b5ab 100644
--- a/src/update-done/update-done.c
+++ b/src/update-done/update-done.c
@@ -22,6 +22,11 @@
 #include "util.h"
 #include "label.h"
 
+#define MESSAGE                                                         \
+        "This file was created by systemd-update-done. Its only \n"     \
+        "purpose is to hold a timestamp of the time this directory\n"   \
+        "was updated. See systemd-update-done.service(8).\n"
+
 static int apply_timestamp(const char *path, struct timespec *ts) {
         struct timespec twice[2];
         struct stat st;
@@ -77,6 +82,8 @@ static int apply_timestamp(const char *path, struct timespec *ts) {
                         return -errno;
                 }
 
+                (void) loop_write(fd, MESSAGE, strlen(MESSAGE), false);
+
                 twice[0] = *ts;
                 twice[1] = *ts;