Do not die if the auto-update does not work

diff --git a/run_branches b/run_branches
index bf377fbfdb4e9e92e08910038baa69b4e93bd321..d45024d9a081637b8f6113a1adf162f8da8d6f46 100755 (executable)
--- a/run_branches
+++ b/run_branches
@@ -85,23 +85,26 @@ if (not exists $EximBuild::Conf{auto_update} or $EximBuild::Conf{auto_update})
     die "$0: auto-update not possible: need write permissions in @{[cwd]}\n"
        if not -w '.';
 
     die "$0: auto-update not possible: need write permissions in @{[cwd]}\n"
        if not -w '.';
 

+    # Get information about our remote and calculate the chance for a
+    # successfull auto-updat. Based on:

     # http://stackoverflow.com/questions/3258243/check-if-pull-needed-in-git
     system("git fetch $remote") == 0 or die $? >> 8;
     my ($upstream, $local, $base) = qx'git rev-parse ...@{upstream}';   die $? >> 8 if $?;
     $base =~ s/^\^//;
 
     if ($upstream ne $local) {
     # http://stackoverflow.com/questions/3258243/check-if-pull-needed-in-git
     system("git fetch $remote") == 0 or die $? >> 8;
     my ($upstream, $local, $base) = qx'git rev-parse ...@{upstream}';   die $? >> 8 if $?;
     $base =~ s/^\^//;
 
     if ($upstream ne $local) {

-       die "$0: the merge base is not local anymore. Refusing to `git pull`\n"
-           if $base ne $local;

 
 

-       say "Doing git pull ..." if $verbose;
-
-       # if we're the merge base, the ff-only should workkkkkk
-       system 'git pull --ff-only' == 0 or die $? >> 8;
-       say "$0: re-execute after update";
-       chdir $CALLED{cwd} or die "$0: Can't chdir to $CALLED{cwd}: $!\n";
-       exec $CALLED{argv0}, @{$CALLED{argv}};
-       die "Can't re-exec\n";
+       if ($base ne $local) {
+           warn "$0: the merge base is not local anymore. Refusing to `git pull`\n"
+       }
+       else {
+           # if we're the merge base, the ff-only should work
+           system 'git pull --ff-only' == 0 or die $? >> 8;
+           say "$0: re-execute after update";
+           chdir $CALLED{cwd} or die "$0: Can't chdir to $CALLED{cwd}: $!\n";
+           exec $CALLED{argv0}, @{$CALLED{argv}};
+           die "Can't re-exec\n";
+       }

     }
 }
 
     }
 }