From: Peter Rabbitson <ribasushi@cpan.org>
Date: Thu, 29 Jan 2009 20:51:40 +0000 (+0000)
Subject: Up DBD::SQLite dependency, andd add broken sqlite detection
X-Git-Tag: v0.08011~15
X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=commitdiff_plain;h=7ec5622e2f70f4b836ac169354a810448ef73544;p=dbsrgits%2FDBIx-Class.git

Up DBD::SQLite dependency, andd add broken sqlite detection
---

diff --git a/Makefile.PL b/Makefile.PL
index 3fe888d..398f682 100644
--- a/Makefile.PL
+++ b/Makefile.PL
@@ -22,8 +22,8 @@ requires 'Scope::Guard'              => 0.03;
 # Perl 5.8.0 doesn't have utf8::is_utf8()
 requires 'Encode'                    => 0 if ($] <= 5.008000);  
 
-build_requires 'DBD::SQLite'         => 1.13;
-build_requires 'Test::Builder'       => 0.33;
+test_requires 'DBD::SQLite'         => 1.14;
+test_requires 'Test::Builder'       => 0.33;
 
 install_script 'script/dbicadmin';
 
@@ -39,5 +39,85 @@ if( -e 'inc/.author' ) {
 auto_provides;
 
 auto_install;
+# Have all prerequisites, check DBD::SQLite sanity
+if (! $ENV{DBICTEST_NO_SQLITE_CHECK} ) {
+
+  my $pid = fork();
+  if (not defined $pid) {
+      die "Unable to fork(): $!";
+  }
+  elsif (! $pid) {
+
+      # Win32 does not have real fork()s so a segfault will bring
+      # everything down. Warn about it.
+      if ($^O eq 'MSWin32') {
+        print <<'EOW';
+
+######################################################################
+#                                                                    #
+# A short stress-testing of DBD::SQLite will follow. If you have a   #
+# buggy library this might very well be the last text you will see   #
+# before the installation silently terminates. If this happens it    #
+# would mean that you are running a buggy version of DBD::SQLite     #
+# known to randomly segfault on errors. Even if you have the latest  #
+# CPAN module version, the system sqlite3 dynamic library might have #
+# been compiled against an older buggy sqlite3 dev library (oddly    #
+# DBD::SQLite will prefer the system library against the one bundled #
+# with it). You are strongly advised to resolve this issue before    #
+# proceeding.                                                        #
+#                                                                    #
+# If this happens to you (this text is the last thing you see), and  #
+# you just want to install this module without worrying about the    #
+# tests (which will almost certainly fail) - set the environment     #
+# variable DBICTEST_NO_SQLITE_CHECK to a true value and try again.   #
+#                                                                    #
+######################################################################
+
+EOW
+      }
+
+      require DBI;
+      for (1 .. 100) {
+          my $dbh;
+          $dbh = DBI->connect ('dbi:SQLite::memory:', undef, undef, {
+              AutoCommit => 1,
+              RaiseError => 0,
+              PrintError => 0,
+          })
+              or die "Unable to connect to database: $@";
+          $dbh->do ('CREATE TABLE name_with_no_columns');   # a subtle syntax error
+          $dbh->do ('COMMIT');                              # followed by commit
+          $dbh->disconnect;
+      }
+
+      exit 0;
+  }
+  else {
+      wait();
+      my $sig = $? & 127;
+      if ($sig == 11) {
+          warn (<<EOE);
+
+############################### WARNING #################################
+#                                                                       #
+# You are running a buggy version of DBD::SQLite known to randomly      #
+# segfault on errors.  Even if you have the latest CPAN module version, #
+# the sqlite3 dynamic library on this system might have been compiled   #
+# against an older buggy sqlite3 dev library (oddly DBD::SQLite will    #
+# prefer the system library against the one bundled with it). You are   #
+# strongly advised to resolve this issue before proceeding.             #
+#                                                                       #
+#########################################################################
+
+EOE
+          my $ans = prompt (
+            "The test suite of this module is almost certain to fail.\n"
+            . 'Do you really want to continue?',
+            'no',
+          );
+          exit 0 unless ($ans =~ /^y(es)?$/i);
+      }
+  }
+}
 
 WriteAll;