-#!/usr/bin/perl
+#!/usr/bin/env perl
=comment
require $buildconf;
# Check if auto-update is wanted and possible
-if (not exists $EximBuild::Conf{auto_update} or $EximBuild::Conf{auto_update})
-{
- my $remote = $EximBuild::Conf{auto_update} // 'origin';
+eval {
+ if (not exists $EximBuild::Conf{auto_update} or $EximBuild::Conf{auto_update})
+ {
+ my $remote = $EximBuild::Conf{auto_update} // 'origin';
+
+ die "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 "'git fetch $remote' failed\n";
+ my ($upstream, $local, $base) = qx'git rev-parse ...@{upstream}' or die "'git rev-parse' failed\n";
- # 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/^\^//;
+ $base =~ s/^\^//;
- if ($upstream ne $local) {
- die "$0: the merge base is not local anymore. Refusing to `git pull`\n"
- if $base ne $local;
+ if ($upstream ne $local) {
- say "Doing git pull ..." if $verbose;
+ if ($base ne $local) {
+ die "the merge base is not local anymore. Refusing to `git pull`\n"
+ }
- # 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 we're the merge base, the ff-only should work
+ # except if there are local changes. We won't stop, if we
+ # fail to update, but we'll issue a warning
+ system("git pull --ff-only $remote") == 0 or die "git pull --ff-only\n";
+
+ say "re-execute after update";
+ chdir $CALLED{cwd} or die "Can't chdir to $CALLED{cwd}: $!\n";
+ exec $CALLED{argv0}, @{$CALLED{argv}};
+ die "Can't re-exec\n";
+ }
}
+};
+
+if ($@) {
+ chomp $@;
+ warn "Automatic updated failed with `$@'\n"
+ ."Continue anyway\n";
}
unless (