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1 | package Devel::REPL::Script; |
2 | |
3 | use Moose; |
4 | use Devel::REPL; |
5 | use File::HomeDir; |
6 | use File::Spec; |
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7 | use vars qw($CURRENT_SCRIPT); |
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8 | use namespace::clean -except => [ qw(meta) ]; |
9 | |
10 | with 'MooseX::Getopt'; |
11 | |
12 | has 'rcfile' => ( |
13 | is => 'ro', isa => 'Str', required => 1, default => sub { 'repl.rc' }, |
14 | ); |
15 | |
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16 | has 'profile' => ( |
17 | is => 'ro', isa => 'Str', required => 1, default => sub { 'Default' }, |
18 | ); |
19 | |
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20 | has '_repl' => ( |
21 | is => 'ro', isa => 'Devel::REPL', required => 1, |
22 | default => sub { Devel::REPL->new() } |
23 | ); |
24 | |
25 | sub BUILD { |
26 | my ($self) = @_; |
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27 | $self->load_profile($self->profile); |
28 | $self->load_rcfile($self->rcfile); |
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29 | } |
30 | |
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31 | sub load_profile { |
32 | my ($self, $profile) = @_; |
33 | $profile = "Devel::REPL::Profile::${profile}" unless $profile =~ /::/; |
34 | Class::MOP::load_class($profile); |
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35 | confess "Profile class ${profile} doesn't do 'Devel::REPL::Profile'" |
36 | unless $profile->does('Devel::REPL::Profile'); |
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37 | $profile->new->apply_profile($self->_repl); |
38 | } |
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39 | |
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40 | sub load_rcfile { |
41 | my ($self, $rc_file) = @_; |
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42 | |
43 | # plain name => ~/.re.pl/${rc_file} |
44 | if ($rc_file !~ m!/!) { |
45 | $rc_file = File::Spec->catfile(File::HomeDir->my_home, '.re.pl', $rc_file); |
46 | } |
47 | |
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48 | $self->apply_script($rc_file); |
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49 | } |
50 | |
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51 | sub apply_script { |
52 | my ($self, $script, $warn_on_unreadable) = @_; |
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53 | |
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54 | if (!-e $script) { |
55 | warn "File '$script' does not exist" if $warn_on_unreadable; |
56 | return; |
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57 | } |
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58 | elsif (!-r _) { |
59 | warn "File '$script' is unreadable" if $warn_on_unreadable; |
60 | return; |
61 | } |
62 | |
63 | open RCFILE, '<', $script or die "Couldn't open ${script}: $!"; |
64 | my $rc_data; |
65 | { local $/; $rc_data = <RCFILE>; } |
66 | close RCFILE; # Don't care if this fails |
67 | $self->eval_script($rc_data); |
68 | warn "Error executing script ${script}: $@\n" if $@; |
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69 | } |
70 | |
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71 | sub eval_script { |
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72 | my ($self, $data) = @_; |
73 | local $CURRENT_SCRIPT = $self; |
74 | $self->_repl->eval($data); |
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75 | } |
76 | |
77 | sub run { |
78 | my ($self) = @_; |
79 | $self->_repl->run; |
80 | } |
81 | |
82 | sub import { |
83 | my ($class, @opts) = @_; |
84 | return unless (@opts == 1 && $opts[0] eq 'run'); |
85 | $class->new_with_options->run; |
86 | } |
87 | |
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88 | sub current { |
89 | confess "->current should only be called as class method" if ref($_[0]); |
90 | confess "No current instance (valid only during rc parse)" |
91 | unless $CURRENT_SCRIPT; |
92 | return $CURRENT_SCRIPT; |
93 | } |
94 | |
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95 | 1; |