From eca21af74910ed2f325fd72c9a5038d8eff6b37d Mon Sep 17 00:00:00 2001
From: lnu <lnu@f70e237a-67f3-0310-a06c-d2b8a7116972>
Date: Thu, 3 Apr 2008 12:14:08 +0000
Subject: fix for gna 10516

git-svn-id: svn+ssh://svn.gna.org/svn/feed2imap/trunk/feed2imap@144 f70e237a-67f3-0310-a06c-d2b8a7116972
---
 ChangeLog                  |  2 ++
 lib/feed2imap/feed2imap.rb | 16 ++++++++++++++++
 2 files changed, 18 insertions(+)

diff --git a/ChangeLog b/ChangeLog
index a70c07f..5a0b557 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,7 @@
 Feed2Imap 0.9.3 (XX/02/2008)
 ============================
+* Check the return code from external commands, and warn if != 0. Fixes
+  Gna bug #10516.
 
 Feed2Imap 0.9.2 (28/10/2007)
 ============================
diff --git a/lib/feed2imap/feed2imap.rb b/lib/feed2imap/feed2imap.rb
index 9a59432..284275a 100644
--- a/lib/feed2imap/feed2imap.rb
+++ b/lib/feed2imap/feed2imap.rb
@@ -121,16 +121,32 @@ class Feed2Imap
             if feed.url
               s = HTTPFetcher::fetch(feed.url, @cache.get_last_check(feed.name))
             elsif feed.execurl
+              # avoid running more than one command at the same time.
+              # We need it because the called command might not be
+              # thread-safe, and we need to get the right exitcode
+              mutex.lock
               s = %x{#{feed.execurl}}
+              if $?.exitstatus != 0
+                @logger.warn("Command for #{feed.name} exited with status #{$?.exitstatus} !")
+              end
+              mutex.unlock
             else
               @logger.warn("No way to fetch feed #{feed.name} !")
             end
             if feed.filter
+              # avoid running more than one command at the same time.
+              # We need it because the called command might not be
+              # thread-safe, and we need to get the right exitcode.
+              mutex.lock
               Open3::popen3(feed.filter) do |stdin, stdout|
                 stdin.puts s
                 stdin.close
                 s = stdout.read
               end
+              if $?.exitstatus != 0
+                @logger.warn("Filter command for #{feed.name} exited with status #{$?.exitstatus}. Output might be corrupted !")
+              end
+              mutex.unlock
             end
             sparefetchers_mutex.synchronize do
               sparefetchers += 1
-- 
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