Commit | Line | Data |
b373788e |
1 | use strictures 1; |
2 | use Test::More; |
3 | use Unknown::Values; |
4 | use List::Util qw(reduce); |
5 | use aliased 'DX::Op::FromCode'; |
6 | use DX::Var; |
7 | use DX::State; |
8 | |
9 | my $defs = <<'EOF'; |
10 | [ssh-key-installed [keyline] |
11 | [exists d |
12 | [directory-at d [string t/scratch/.ssh]] |
13 | [directory-perms d [string 0755]]] |
14 | [exists f |
15 | [file-at f [string t/scratch/.ssh/authorized_keys]] |
16 | [file-perms f [string 0644]] |
17 | [file-contains-line f keyline]] |
18 | ] |
19 | EOF |
20 | |
21 | my %names; |
22 | |
23 | my $path_status = {}; |
24 | |
25 | sub make_set_bind { |
26 | my ($set) = @_; |
27 | sub { |
28 | my ($self, $state, $thing, $key) = @_; |
29 | die "key unbound" unless $key->is_bound; |
30 | die "thing bound" if $thing->is_bound; |
31 | if (my $value = $set->{$key->bound_value}) { |
32 | return $state->bind_var_then($thing, $value, $self->next); |
33 | } |
34 | return $state->backtrack; |
35 | } |
36 | } |
37 | |
38 | sub make_test { |
39 | my ($test) = @_; |
40 | sub { |
41 | my ($self, $state, @args) = @_; |
42 | if ($test->(@args)) { |
43 | return $state->then($self->next); |
44 | } |
45 | return $state->backtrack; |
46 | } |
47 | } |
48 | |
49 | my $pop_ret = FromCode->new(code => sub { $_[1]->pop_return_stack }); |
50 | |
51 | sub link_ops { |
52 | my @to_link = @_; |
53 | reduce { FromCode->new(next => $a, code => $b) } $pop_ret, reverse @to_link; |
54 | } |
55 | |
56 | sub make_exists { |
57 | my ($var_names, @body) = @_; |
58 | my %vars = map +($_ => {}), @$var_names; |
59 | my $inner_op = link_ops(@body); |
60 | sub { |
61 | my ($self, $state) = @_; |
62 | my $scope = $state->scope; |
63 | my $ret_op = FromCode->new( |
64 | code => sub { $_[1]->but(scope => $scope, next_op => $_[0]->next) }, |
65 | next => $self->next, |
66 | ); |
67 | $state->but( |
68 | scope => { %$scope }, |
69 | return_stack => [ @{$state->return_stack}, $ret_op ], |
70 | next_op => $inner_op |
71 | )->assign_vars(%vars); |
72 | }; |
73 | } |
74 | |
75 | sub make_call { |
76 | my ($predicate, @arg_spec) = @_; |
77 | die "didn't invent or yet" unless @$predicate == 1; |
78 | my ($option) = @$predicate; |
79 | sub { |
80 | my ($self, $state) = @_; |
81 | my $scope = $state->scope; |
82 | my $ret_op = FromCode->new( |
83 | code => sub { $_[1]->but(scope => $scope, next_op => $_[0]->next) }, |
84 | next => $self->next, |
85 | ); |
86 | my @args = map { |
87 | my ($type, $val) = @$_; |
88 | if ($type eq 'var') { |
89 | $state->scope_var($val); |
90 | } elsif ($type eq 'value') { |
91 | $state->allocate_var('v', { bound_value => $val }); |
92 | } else { |
93 | die "WTH"; |
94 | } |
95 | } @arg_spec; |
96 | $state->but( |
97 | scope => {}, |
98 | return_stack => [ @{$state->return_stack}, $ret_op ], |
99 | next_op => FromCode->new( |
100 | code => sub { $option->(@_, @args) }, |
101 | next => $pop_ret, |
102 | ), |
103 | ); |
104 | }; |
105 | } |
106 | |
107 | sub make_state { |
108 | my ($vars, $op) = @_; |
109 | |
110 | DX::State->new( |
111 | next_op => $op, |
112 | return_stack => [], |
113 | by_id => {}, |
114 | scope => {}, |
115 | last_choice => [] |
116 | )->assign_vars(map +($_ => {}), @$vars); |
117 | } |
118 | |
119 | $names{path_status} = [ |
120 | make_set_bind($path_status) |
121 | ]; |
122 | |
123 | $names{path_exists} = [ make_test( |
124 | sub { $_[0]->{is_directory} || $_[0]->{is_file} } |
125 | ) ]; |
126 | |
127 | $names{is_directory} = [ |
128 | make_test(sub { $_[0]->bound_value->{is_directory} }), |
129 | # make_rule( |
130 | # [ 'D' ], |
131 | # make_not(make_call($names{path_exists}, [ var => 'D' ])), |
132 | # make_action( |
133 | # sub { +{ action => 'mkdir', path => $_[0]->{path}, is_directory => 1, perms => unknown() } }, |
134 | # [ var => 'D' ] |
135 | # ), |
136 | # ), |
137 | ]; |
138 | |
139 | $names{dot_ssh} = [ make_exists( |
140 | [ 'D' ], |
141 | make_call($names{path_status}, [ var => 'D' ], [ value => 't/scratch/.ssh' ]), |
142 | make_call($names{is_directory}, [ var => 'D' ]) |
143 | ) ]; |
144 | |
145 | my $state = make_state([], FromCode->new(code => $names{dot_ssh}[0])); |
146 | |
147 | is($state->run, undef, 'Failure with no path status'); |
148 | |
149 | $path_status->{'t/scratch/.ssh'} = { is_directory => 0 }; |
150 | |
151 | is($state->run, undef, 'Failure with non-directory'); |
152 | |
153 | $path_status->{'t/scratch/.ssh'} = { is_directory => 1 }; |
154 | |
155 | isa_ok($state->run, 'DX::State', 'Success with directory'); |
156 | |
157 | done_testing; |