stow_contents / unstow_node: rename $target => $target_sub{dir,path}
This is very similar to a previous commit which did the same rename in stow_node(). The $target variable was ambiguous, as it could have referred to the path to the target directory, or the path to a sub-directory in the target, as well as its intended meaning of a subpath relative to the target directory. So rename it to try to find the balance between clarity and verbosity.
This commit is contained in:
Adam Spiers
parent
8a17d8b4f2
commit
10c86841de
167
lib/Stow.pm.in
167
lib/Stow.pm.in
|
|
@ -361,7 +361,7 @@ sub within_target_do {
|
|||
debug(3, 0, "cwd restored to $cwd");
|
||||
}
|
||||
|
||||
=head2 stow_contents($stow_path, $package, $target, $source)
|
||||
=head2 stow_contents($stow_path, $package, $target_subdir, $source)
|
||||
|
||||
Stow the contents of the given directory.
|
||||
|
||||
|
|
@ -379,7 +379,7 @@ Stow Directories" section of the manual).
|
|||
|
||||
The package whose contents are being stowed.
|
||||
|
||||
=item $target
|
||||
=item $target_subdir
|
||||
|
||||
Subpath relative to package directory which needs stowing as a symlink
|
||||
at subpath relative to target directory.
|
||||
|
|
@ -390,15 +390,14 @@ Relative path from the (sub)dir of target to symlink source.
|
|||
|
||||
=back
|
||||
|
||||
C<stow_node()> and C<stow_contents()> are mutually recursive. $source
|
||||
and $target are used for creating the symlink. C<$path> is used for
|
||||
folding/unfolding trees as necessary.
|
||||
C<stow_node()> and C<stow_contents()> are mutually recursive.
|
||||
C<$source> and C<$target_subdir> are used for creating the symlink.
|
||||
|
||||
=cut
|
||||
|
||||
sub stow_contents {
|
||||
my $self = shift;
|
||||
my ($stow_path, $package, $target, $source, $level) = @_;
|
||||
my ($stow_path, $package, $target_subdir, $source, $level) = @_;
|
||||
|
||||
# Calculate the path to the package directory or sub-directory
|
||||
# whose contents need to be stowed, relative to the current
|
||||
|
|
@ -414,7 +413,7 @@ sub stow_contents {
|
|||
my $n = 0;
|
||||
my $path = join '/', map { (++$n <= $level) ? ( ) : $_ } (split m{/+}, $source);
|
||||
|
||||
return if $self->should_skip_target($target);
|
||||
return if $self->should_skip_target($target_subdir);
|
||||
|
||||
my $cwd = getcwd();
|
||||
my $msg = "Stowing contents of $path (cwd=$cwd)";
|
||||
|
|
@ -424,8 +423,8 @@ sub stow_contents {
|
|||
|
||||
error("stow_contents() called with non-directory package path: $path")
|
||||
unless -d $path;
|
||||
error("stow_contents() called with non-directory target: $target")
|
||||
unless $self->is_a_node($target);
|
||||
error("stow_contents() called with non-directory target: $target_subdir")
|
||||
unless $self->is_a_node($target_subdir);
|
||||
|
||||
opendir my $DIR, $path
|
||||
or error("cannot read directory: $path ($!)");
|
||||
|
|
@ -436,7 +435,7 @@ sub stow_contents {
|
|||
for my $node (@listing) {
|
||||
next NODE if $node eq '.';
|
||||
next NODE if $node eq '..';
|
||||
my $node_target = join_paths($target, $node);
|
||||
my $node_target = join_paths($target_subdir, $node);
|
||||
next NODE if $self->ignore($stow_path, $package, $node_target);
|
||||
|
||||
if ($self->{dotfiles}) {
|
||||
|
|
@ -630,17 +629,17 @@ sub stow_node {
|
|||
return;
|
||||
}
|
||||
|
||||
=head2 should_skip_target($target)
|
||||
=head2 should_skip_target($target_subdir)
|
||||
|
||||
Determine whether target is a stow directory which should
|
||||
not be stowed to or unstowed from. This mechanism protects
|
||||
stow directories from being altered by stow, and is a necessary
|
||||
safety check because the stow directory could live beneath the
|
||||
target directory.
|
||||
Determine whether C<$target_subdir> is a stow directory which should
|
||||
not be stowed to or unstowed from. This mechanism protects stow
|
||||
directories from being altered by stow, and is a necessary safety
|
||||
check because the stow directory could live beneath the target
|
||||
directory.
|
||||
|
||||
=over 4
|
||||
|
||||
=item $target => relative path to symlink target from the current directory
|
||||
=item $target_subdir => relative path to symlink target from the current directory
|
||||
|
||||
=back
|
||||
|
||||
|
|
@ -710,12 +709,12 @@ Here we traverse the source tree, rather than the target tree.
|
|||
|
||||
sub unstow_contents {
|
||||
my $self = shift;
|
||||
my ($package, $target, $path) = @_;
|
||||
my ($package, $target_subdir, $path) = @_;
|
||||
|
||||
return if $self->should_skip_target($target);
|
||||
return if $self->should_skip_target($target_subdir);
|
||||
|
||||
my $cwd = getcwd();
|
||||
my $msg = "Unstowing from $target (cwd=$cwd, stow dir=$self->{stow_path})";
|
||||
my $msg = "Unstowing from $target_subdir (cwd=$cwd, stow dir=$self->{stow_path})";
|
||||
$msg =~ s!$ENV{HOME}/!~/!g;
|
||||
debug(3, 0, $msg);
|
||||
debug(4, 1, "source path is $path");
|
||||
|
|
@ -724,22 +723,22 @@ sub unstow_contents {
|
|||
# In compat mode we traverse the target tree not the source tree,
|
||||
# so we're unstowing the contents of /target/foo, there's no
|
||||
# guarantee that the corresponding /stow/mypkg/foo exists.
|
||||
error("unstow_contents() in compat mode called with non-directory target: $target")
|
||||
unless -d $target;
|
||||
error("unstow_contents() in compat mode called with non-directory target: $target_subdir")
|
||||
unless -d $target_subdir;
|
||||
}
|
||||
else {
|
||||
# We traverse the source tree not the target tree, so $path must exist.
|
||||
error("unstow_contents() called with non-directory path: $path")
|
||||
unless -d $path;
|
||||
|
||||
# When called at the top level, $target should exist. And
|
||||
# When called at the top level, $target_subdir should exist. And
|
||||
# unstow_node() should only call this via mutual recursion if
|
||||
# $target exists.
|
||||
error("unstow_contents() called with invalid target: $target")
|
||||
unless $self->is_a_node($target);
|
||||
# $target_subdir exists.
|
||||
error("unstow_contents() called with invalid target: $target_subdir")
|
||||
unless $self->is_a_node($target_subdir);
|
||||
}
|
||||
|
||||
my $dir = $self->{compat} ? $target : $path;
|
||||
my $dir = $self->{compat} ? $target_subdir : $path;
|
||||
opendir my $DIR, $dir
|
||||
or error("cannot read directory: $dir ($!)");
|
||||
my @listing = readdir $DIR;
|
||||
|
|
@ -749,7 +748,7 @@ sub unstow_contents {
|
|||
for my $node (@listing) {
|
||||
next NODE if $node eq '.';
|
||||
next NODE if $node eq '..';
|
||||
my $node_target = join_paths($target, $node);
|
||||
my $node_target = join_paths($target_subdir, $node);
|
||||
next NODE if $self->ignore($self->{stow_path}, $package, $node_target);
|
||||
|
||||
if ($self->{dotfiles}) {
|
||||
|
|
@ -761,12 +760,12 @@ sub unstow_contents {
|
|||
$self->unstow_node($package, $node_target, join_paths($path, $node));
|
||||
}
|
||||
|
||||
if (! $self->{compat} && -d $target) {
|
||||
$self->cleanup_invalid_links($target);
|
||||
if (! $self->{compat} && -d $target_subdir) {
|
||||
$self->cleanup_invalid_links($target_subdir);
|
||||
}
|
||||
}
|
||||
|
||||
=head2 unstow_node($package, $target)
|
||||
=head2 unstow_node($package, $target_subpath)
|
||||
|
||||
Unstow the given node.
|
||||
|
||||
|
|
@ -776,7 +775,7 @@ Unstow the given node.
|
|||
|
||||
The package containing the node being unstowed.
|
||||
|
||||
=item $target
|
||||
=item $target_subpath
|
||||
|
||||
Relative path to symlink target from the current directory.
|
||||
|
||||
|
|
@ -788,62 +787,62 @@ C<unstow_node()> and C<unstow_contents()> are mutually recursive.
|
|||
|
||||
sub unstow_node {
|
||||
my $self = shift;
|
||||
my ($package, $target, $source) = @_;
|
||||
my ($package, $target_subpath, $source) = @_;
|
||||
|
||||
my $path = join_paths($self->{stow_path}, $package, $target);
|
||||
my $path = join_paths($self->{stow_path}, $package, $target_subpath);
|
||||
|
||||
debug(3, 1, "Unstowing $path");
|
||||
debug(4, 2, "target is $target");
|
||||
debug(4, 2, "target is $target_subpath");
|
||||
|
||||
# Does the target exist?
|
||||
if ($self->is_a_link($target)) {
|
||||
$self->unstow_link_node($package, $target, $path);
|
||||
if ($self->is_a_link($target_subpath)) {
|
||||
$self->unstow_link_node($package, $target_subpath, $path);
|
||||
}
|
||||
elsif ($self->{compat} && -d $target) {
|
||||
$self->unstow_contents($package, $target, $path);
|
||||
elsif ($self->{compat} && -d $target_subpath) {
|
||||
$self->unstow_contents($package, $target_subpath, $path);
|
||||
|
||||
# This action may have made the parent directory foldable
|
||||
if (my $parent = $self->foldable($target)) {
|
||||
$self->fold_tree($target, $parent);
|
||||
if (my $parent = $self->foldable($target_subpath)) {
|
||||
$self->fold_tree($target_subpath, $parent);
|
||||
}
|
||||
}
|
||||
elsif (-e $target) {
|
||||
elsif (-e $target_subpath) {
|
||||
if ($self->{compat}) {
|
||||
$self->conflict(
|
||||
'unstow',
|
||||
$package,
|
||||
"existing target is neither a link nor a directory: $target",
|
||||
"existing target is neither a link nor a directory: $target_subpath",
|
||||
);
|
||||
}
|
||||
else {
|
||||
$self->unstow_existing_node($package, $target, $source);
|
||||
$self->unstow_existing_node($package, $target_subpath, $source);
|
||||
}
|
||||
}
|
||||
else {
|
||||
debug(2, 1, "$target did not exist to be unstowed");
|
||||
debug(2, 1, "$target_subpath did not exist to be unstowed");
|
||||
}
|
||||
return;
|
||||
}
|
||||
|
||||
sub unstow_link_node {
|
||||
my $self = shift;
|
||||
my ($package, $target, $path) = @_;
|
||||
debug(4, 2, "Evaluate existing link: $target");
|
||||
my ($package, $target_subpath, $path) = @_;
|
||||
debug(4, 2, "Evaluate existing link: $target_subpath");
|
||||
|
||||
# Where is the link pointing?
|
||||
my $existing_source = $self->read_a_link($target);
|
||||
my $existing_source = $self->read_a_link($target_subpath);
|
||||
if (not $existing_source) {
|
||||
error("Could not read link: $target");
|
||||
error("Could not read link: $target_subpath");
|
||||
}
|
||||
|
||||
if ($existing_source =~ m{\A/}) {
|
||||
warn "Ignoring an absolute symlink: $target => $existing_source\n";
|
||||
warn "Ignoring an absolute symlink: $target_subpath => $existing_source\n";
|
||||
return; # XXX #
|
||||
}
|
||||
|
||||
# Does it point to a node under any stow directory?
|
||||
my ($existing_path, $existing_stow_path, $existing_package) =
|
||||
$self->find_stowed_path($target, $existing_source);
|
||||
$self->find_stowed_path($target_subpath, $existing_source);
|
||||
if (not $existing_path) {
|
||||
if ($self->{compat}) {
|
||||
# We're traversing the target tree not the package tree,
|
||||
|
|
@ -855,25 +854,25 @@ sub unstow_link_node {
|
|||
$self->conflict(
|
||||
'unstow',
|
||||
$package,
|
||||
"existing target is not owned by stow: $target => $existing_source"
|
||||
"existing target is not owned by stow: $target_subpath => $existing_source"
|
||||
);
|
||||
}
|
||||
return;
|
||||
}
|
||||
|
||||
# Does the existing $target actually point to anything?
|
||||
# Does the existing $target_subpath actually point to anything?
|
||||
if (-e $existing_path) {
|
||||
$self->unstow_valid_link($path, $target, $existing_path);
|
||||
$self->unstow_valid_link($path, $target_subpath, $existing_path);
|
||||
}
|
||||
else {
|
||||
debug(2, 0, "--- removing invalid link into a stow directory: $path");
|
||||
$self->do_unlink($target);
|
||||
$self->do_unlink($target_subpath);
|
||||
}
|
||||
}
|
||||
|
||||
sub unstow_valid_link {
|
||||
my $self = shift;
|
||||
my ($path, $target, $existing_path) = @_;
|
||||
my ($path, $target_subpath, $existing_path) = @_;
|
||||
# Does link points to the right place?
|
||||
|
||||
# Adjust for dotfile if necessary.
|
||||
|
|
@ -882,58 +881,58 @@ sub unstow_valid_link {
|
|||
}
|
||||
|
||||
if ($existing_path eq $path) {
|
||||
$self->do_unlink($target);
|
||||
$self->do_unlink($target_subpath);
|
||||
}
|
||||
|
||||
# XXX we quietly ignore links that are stowed to a different
|
||||
# package.
|
||||
|
||||
#elsif (defer($target)) {
|
||||
# debug(2, 0, "--- deferring to installation of: $target");
|
||||
#elsif (defer($target_subpath)) {
|
||||
# debug(2, 0, "--- deferring to installation of: $target_subpath");
|
||||
#}
|
||||
#elsif ($self->override($target)) {
|
||||
# debug(2, 0, "--- overriding installation of: $target");
|
||||
# $self->do_unlink($target);
|
||||
#elsif ($self->override($target_subpath)) {
|
||||
# debug(2, 0, "--- overriding installation of: $target_subpath");
|
||||
# $self->do_unlink($target_subpath);
|
||||
#}
|
||||
#else {
|
||||
# $self->conflict(
|
||||
# 'unstow',
|
||||
# $package,
|
||||
# "existing target is stowed to a different package: "
|
||||
# . "$target => $existing_source"
|
||||
# . "$target_subpath => $existing_source"
|
||||
# );
|
||||
#}
|
||||
}
|
||||
|
||||
sub unstow_existing_node {
|
||||
my $self = shift;
|
||||
my ($package, $target, $source) = @_;
|
||||
debug(4, 2, "Evaluate existing node: $target");
|
||||
if (-d $target) {
|
||||
$self->unstow_contents($package, $target, $source);
|
||||
my ($package, $target_subpath, $source) = @_;
|
||||
debug(4, 2, "Evaluate existing node: $target_subpath");
|
||||
if (-d $target_subpath) {
|
||||
$self->unstow_contents($package, $target_subpath, $source);
|
||||
|
||||
# This action may have made the parent directory foldable
|
||||
if (my $parent = $self->foldable($target)) {
|
||||
$self->fold_tree($target, $parent);
|
||||
if (my $parent = $self->foldable($target_subpath)) {
|
||||
$self->fold_tree($target_subpath, $parent);
|
||||
}
|
||||
}
|
||||
else {
|
||||
$self->conflict(
|
||||
'unstow',
|
||||
$package,
|
||||
"existing target is neither a link nor a directory: $target",
|
||||
"existing target is neither a link nor a directory: $target_subpath",
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
=head2 link_owned_by_package($target, $source)
|
||||
=head2 link_owned_by_package($target_subpath, $source)
|
||||
|
||||
Determine whether the given link points to a member of a stowed
|
||||
package.
|
||||
|
||||
=over 4
|
||||
|
||||
=item $target
|
||||
=item $target_subpath
|
||||
|
||||
Path to a symbolic link under current directory.
|
||||
|
||||
|
|
@ -951,14 +950,14 @@ Returns the package iff link is owned by stow, otherwise ''.
|
|||
|
||||
sub link_owned_by_package {
|
||||
my $self = shift;
|
||||
my ($target, $source) = @_;
|
||||
my ($target_subpath, $source) = @_;
|
||||
|
||||
my ($path, $stow_path, $package) =
|
||||
$self->find_stowed_path($target, $source);
|
||||
$self->find_stowed_path($target_subpath, $source);
|
||||
return $package;
|
||||
}
|
||||
|
||||
=head2 find_stowed_path($target, $link_dest)
|
||||
=head2 find_stowed_path($target_subpath, $link_dest)
|
||||
|
||||
Determine whether the given symlink within the target directory is a
|
||||
stowed path pointing to a member of a package under the stow dir, and
|
||||
|
|
@ -966,7 +965,7 @@ if so, obtain a breakdown of information about this stowed path.
|
|||
|
||||
=over 4
|
||||
|
||||
=item $target
|
||||
=item $target_subpath
|
||||
|
||||
Path to a symbolic link somewhere under the target directory, relative
|
||||
to the top-level target directory (which is also expected to be the
|
||||
|
|
@ -977,7 +976,7 @@ current directory).
|
|||
Where that link points to (needed because link might not exist yet due
|
||||
to two-phase approach, so we can't just call C<readlink()>). If this
|
||||
is owned by Stow, it will be expressed relative to (the directory
|
||||
containing) C<$target>. However if it's not, it could of course be
|
||||
containing) C<$target_subpath>. However if it's not, it could of course be
|
||||
relative or absolute, point absolutely anywhere, and could even be
|
||||
dangling.
|
||||
|
||||
|
|
@ -998,7 +997,7 @@ not being under target dir.
|
|||
|
||||
sub find_stowed_path {
|
||||
my $self = shift;
|
||||
my ($target, $link_dest) = @_;
|
||||
my ($target_subpath, $link_dest) = @_;
|
||||
|
||||
if (substr($link_dest, 0, 1) eq '/') {
|
||||
# Symlink points to an absolute path, therefore it cannot be
|
||||
|
|
@ -1009,8 +1008,8 @@ sub find_stowed_path {
|
|||
# Evaluate softlink relative to its target, without relying on
|
||||
# what's actually on the filesystem, since the link might not
|
||||
# exist yet.
|
||||
debug(4, 2, "find_stowed_path(target=$target; source=$link_dest)");
|
||||
my $dest = join_paths(parent($target), $link_dest);
|
||||
debug(4, 2, "find_stowed_path(target=$target_subpath; source=$link_dest)");
|
||||
my $dest = join_paths(parent($target_subpath), $link_dest);
|
||||
debug(4, 3, "is symlink destination $dest owned by stow?");
|
||||
|
||||
# First check whether the link is owned by the current stow
|
||||
|
|
@ -1177,14 +1176,14 @@ sub cleanup_invalid_links {
|
|||
error("Could not read link $node_path");
|
||||
}
|
||||
|
||||
my $target = join_paths($dir, $link_dest);
|
||||
my $target_subpath = join_paths($dir, $link_dest);
|
||||
debug(4, 2, "join $dir $link_dest");
|
||||
if (-e $target) {
|
||||
debug(4, 2, "Link target $link_dest exists at $target; skipping clean up");
|
||||
if (-e $target_subpath) {
|
||||
debug(4, 2, "Link target $link_dest exists at $target_subpath; skipping clean up");
|
||||
next;
|
||||
}
|
||||
else {
|
||||
debug(4, 2, "Link target $link_dest doesn't exist at $target");
|
||||
debug(4, 2, "Link target $link_dest doesn't exist at $target_subpath");
|
||||
}
|
||||
|
||||
debug(3, 1,
|
||||
|
|
|
|||
Loading…
Reference in a new issue