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Add debug tracing to helper routines

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Adam Spiers 2011-11-17 16:37:37 +00:00
parent 422a748724
commit 063331c34d
1 changed files with 18 additions and 3 deletions
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stow.in
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@ -1112,9 +1112,11 @@ sub process_tasks {
#============================================================================ #============================================================================
sub is_a_link { sub is_a_link {
my ($path) = @_; my ($path) = @_;
debug(4, " is_a_link($path)");
if (exists $Link_Task_For{$path}) { if (exists $Link_Task_For{$path}) {
my $action = $Link_Task_For{$path}->{'action'}; my $action = $Link_Task_For{$path}->{'action'};
debug(4, "is_a_link($path): task exists with action $action");
if ($action eq 'remove') { if ($action eq 'remove') {
return 0; return 0;
@ -1129,6 +1131,7 @@ sub is_a_link {
elsif (-l $path) { elsif (-l $path) {
# check if any of its parent are links scheduled for removal # check if any of its parent are links scheduled for removal
# (need this for edge case during unfolding) # (need this for edge case during unfolding)
debug(4, "is_a_link($path): is a real link");
my $parent = ''; my $parent = '';
for my $part (split m{/+}, $path) { for my $part (split m{/+}, $path) {
$parent = join_paths($parent, $part); $parent = join_paths($parent, $part);
@ -1140,6 +1143,7 @@ sub is_a_link {
} }
return 1; return 1;
} }
debug(4, "is_a_link($path): returning false");
return 0; return 0;
} }
@ -1156,9 +1160,11 @@ sub is_a_link {
#============================================================================ #============================================================================
sub is_a_dir { sub is_a_dir {
my ($path) = @_; my ($path) = @_;
debug(4, " is_a_dir($path)");
if (exists $Dir_Task_For{$path}) { if (exists $Dir_Task_For{$path}) {
my $action = $Dir_Task_For{$path}->{'action'}; my $action = $Dir_Task_For{$path}->{'action'};
debug(4, "is_a_dir($path): task exists with action $action");
if ($action eq 'remove') { if ($action eq 'remove') {
return 0; return 0;
} }
@ -1181,8 +1187,10 @@ sub is_a_dir {
} }
if (-d $path) { if (-d $path) {
debug(4, "is_a_dir($path): real dir");
return 1; return 1;
} }
debug(4, "is_a_dir($path): returning false");
return 0; return 0;
} }
@ -1198,10 +1206,11 @@ sub is_a_dir {
#============================================================================ #============================================================================
sub is_a_node { sub is_a_node {
my ($path) = @_; my ($path) = @_;
debug(4, " is_a_node($path)");
if (exists $Link_Task_For{$path}) { if (exists $Link_Task_For{$path}) {
my $action = $Link_Task_For{$path}->{'action'}; my $action = $Link_Task_For{$path}->{'action'};
debug(4, "is_a_node($path): link task exists with action $action");
if ($action eq 'remove') { if ($action eq 'remove') {
return 0; return 0;
} }
@ -1215,7 +1224,7 @@ sub is_a_node {
if (exists $Dir_Task_For{$path}) { if (exists $Dir_Task_For{$path}) {
my $action = $Dir_Task_For{$path}->{'action'}; my $action = $Dir_Task_For{$path}->{'action'};
debug(4, "is_a_node($path): dir task exists with action $action");
if ($action eq 'remove') { if ($action eq 'remove') {
return 0; return 0;
} }
@ -1230,16 +1239,20 @@ sub is_a_node {
# are we really following a link that is scheduled for removal # are we really following a link that is scheduled for removal
my $prefix = ''; my $prefix = '';
for my $part (split m{/+}, $path) { for my $part (split m{/+}, $path) {
$prefix = join_paths($prefix, $part); $prefix = join_paths($prefix, $part);
debug(4, "is_a_node($path): prefix $prefix");
if (exists $Link_Task_For{$prefix} and if (exists $Link_Task_For{$prefix} and
$Link_Task_For{$prefix}->{'action'} eq 'remove') { $Link_Task_For{$prefix}->{'action'} eq 'remove') {
debug(4, "is_a_node($path): link scheduled for removal");
return 0; return 0;
} }
} }
if (-e $path) { if (-e $path) {
debug(4, "is_a_node($path): really exists");
return 1; return 1;
} }
debug(4, "is_a_node($path): returning false");
return 0; return 0;
} }
@ -1257,6 +1270,7 @@ sub read_a_link {
if (exists $Link_Task_For{$path}) { if (exists $Link_Task_For{$path}) {
my $action = $Link_Task_For{$path}->{'action'}; my $action = $Link_Task_For{$path}->{'action'};
debug(4, "read_a_link($path): task exists with action $action");
if ($action eq 'create') { if ($action eq 'create') {
return $Link_Task_For{$path}->{'source'}; return $Link_Task_For{$path}->{'source'};
@ -1271,6 +1285,7 @@ sub read_a_link {
} }
} }
elsif (-l $path) { elsif (-l $path) {
debug(4, "read_a_link($path): real link");
return readlink $path return readlink $path
or error("Could not read link: $path"); or error("Could not read link: $path");
} }