1 | # ------------------------------------------------------------------------------ |
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2 | # Copyright (C) 2006-2021 British Crown (Met Office) & Contributors. |
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3 | # |
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4 | # This file is part of FCM, tools for managing and building source code. |
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5 | # |
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6 | # FCM is free software: you can redistribute it and/or modify |
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7 | # it under the terms of the GNU General Public License as published by |
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8 | # the Free Software Foundation, either version 3 of the License, or |
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9 | # (at your option) any later version. |
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10 | # |
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11 | # FCM is distributed in the hope that it will be useful, |
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12 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
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13 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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14 | # GNU General Public License for more details. |
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15 | # |
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16 | # You should have received a copy of the GNU General Public License |
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17 | # along with FCM. If not, see <http://www.gnu.org/licenses/>. |
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18 | # ------------------------------------------------------------------------------ |
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19 | use strict; |
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20 | use warnings; |
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21 | # ------------------------------------------------------------------------------ |
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22 | package FCM::System::Misc; |
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23 | use base qw{FCM::Class::CODE}; |
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24 | |
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25 | use Cwd qw{cwd}; |
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26 | use FCM::Context::Event; |
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27 | use FCM::Context::Locator; |
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28 | use FCM::System::Exception; |
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29 | use FCM::Util::ConfigReader; |
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30 | use File::Path qw{mkpath rmtree}; |
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31 | use File::Spec::Functions qw{catfile}; |
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32 | use List::Util qw{max}; |
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33 | use Text::ParseWords qw{shellwords}; |
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34 | |
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35 | # The (keys) named actions of this class and (values) their implementations. |
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36 | our %ACTION_OF = ( |
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37 | browse => \&_browse, |
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38 | config_parse => \&_config_parse, |
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39 | export_items => \&_export_items, |
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40 | keyword_find => \&_keyword_find, |
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41 | ); |
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42 | # Alias to exception class |
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43 | my $E = 'FCM::System::Exception'; |
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44 | |
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45 | # Creates the class. |
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46 | __PACKAGE__->class({util => '&'}, {action_of => \%ACTION_OF}); |
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47 | |
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48 | # Launches a web browser to display some version controlled resources. |
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49 | sub _browse { |
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50 | my ($attrib_ref, $option_ref, @args) = @_; |
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51 | my $UTIL = $attrib_ref->{util}; |
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52 | my @command = shellwords( |
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53 | exists($option_ref->{browser}) ? $option_ref->{browser} |
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54 | : $UTIL->external_cfg_get('browser') |
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55 | ); |
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56 | if (!@args) { |
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57 | @args = (cwd()); |
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58 | } |
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59 | for my $value (@args) { |
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60 | my $locator = FCM::Context::Locator->new($value); |
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61 | my $url = $UTIL->loc_browser_url($locator); |
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62 | my %value_of = %{$UTIL->shell_simple([@command, $url])}; |
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63 | if ($value_of{rc}) { |
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64 | return $E->throw( |
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65 | $E->SHELL, |
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66 | {command_list => [@command, $url], %value_of}, |
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67 | $value_of{e}, |
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68 | ); |
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69 | } |
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70 | $attrib_ref->{util}->event(FCM::Context::Event->OUT, $value_of{o}); |
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71 | } |
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72 | return; |
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73 | } |
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74 | |
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75 | # Parses and displays the content of a FCM configuration file. |
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76 | sub _config_parse { |
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77 | my ($attrib_ref, $option_ref, @args) = @_; |
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78 | my $reader_attrib_ref; |
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79 | if (exists($option_ref->{'fcm1'})) { |
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80 | $reader_attrib_ref = \%FCM::Util::ConfigReader::FCM1_ATTRIB; |
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81 | } |
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82 | for my $value (@args) { |
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83 | my $locator = FCM::Context::Locator->new($value); |
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84 | my $iter = $attrib_ref->{util}->config_reader( |
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85 | $locator, $reader_attrib_ref, |
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86 | ); |
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87 | while (my $entry = $iter->()) { |
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88 | $attrib_ref->{util}->event( |
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89 | FCM::Context::Event->CONFIG_ENTRY, |
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90 | $entry, |
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91 | exists($option_ref->{'fcm1'}), |
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92 | ); |
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93 | } |
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94 | } |
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95 | return; |
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96 | } |
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97 | |
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98 | # Exports directories in a project as sequential versioned items. |
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99 | sub _export_items { |
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100 | my ($attrib_ref, $option_ref, $location) = @_; |
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101 | if (!$location) { |
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102 | return $E->throw($E->EXPORT_ITEMS_SRC); |
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103 | } |
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104 | $location ||= q{.}; |
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105 | my $UTIL = $attrib_ref->{util}; |
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106 | # Options and arguments |
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107 | $option_ref->{directory} ||= cwd(); |
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108 | $option_ref->{'config-file'} ||= ['fcm-export-items.cfg']; |
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109 | my $locator = FCM::Context::Locator->new($location); |
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110 | $UTIL->loc_as_invariant($locator); |
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111 | # Timer |
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112 | my $time_start = time(); |
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113 | my $timer = $UTIL->timer(); |
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114 | my %EVENT = ( |
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115 | 'create' => sub { |
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116 | $UTIL->event(FCM::Context::Event->EXPORT_ITEM_CREATE, @_); |
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117 | }, |
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118 | 'delete' => sub { |
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119 | $UTIL->event(FCM::Context::Event->EXPORT_ITEM_DELETE, @_); |
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120 | }, |
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121 | 'timer' => sub { |
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122 | $UTIL->event( |
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123 | FCM::Context::Event->TIMER, 'export-items', $time_start, @_, |
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124 | ); |
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125 | }, |
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126 | ); |
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127 | $EVENT{'timer'}->(); |
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128 | # Reads configuration file |
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129 | my $config_reader = $attrib_ref->{util}->config_reader( |
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130 | FCM::Context::Locator->new($option_ref->{'config-file'}->[0]), |
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131 | { %FCM::Util::ConfigReader::FCM1_ATTRIB, |
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132 | event_level => $attrib_ref->{util}->util_of_report()->LOW, |
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133 | }, |
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134 | ); |
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135 | my %conditions_of; |
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136 | while (defined(my $entry = $config_reader->())) { |
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137 | # Value: conditions |
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138 | my @conditions; |
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139 | for my $word (shellwords($entry->get_value())) { |
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140 | my ($operator, $rev) = $word =~ qr{\A ([<>]=?|[!=]=) (.+) \z}imsx; |
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141 | if (!$operator || !$rev) { |
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142 | return $E->throw($E->CONFIG_VALUE, $entry); |
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143 | } |
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144 | push(@conditions, $operator . $rev); # FIXME: keyword? |
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145 | } |
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146 | # Label: targets and namespaces |
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147 | my ($target) = $entry->get_label() =~ qr{\A (.+) / \*\z}msx; |
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148 | if ($target) { |
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149 | my $l_target = $UTIL->loc_cat($locator, $target); |
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150 | $UTIL->loc_find( |
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151 | $l_target, |
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152 | sub { |
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153 | my ($l_child, $attrib_of_child_ref) = @_; |
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154 | if (!$attrib_of_child_ref->{is_dir}) { |
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155 | my $ns_of_child = $attrib_of_child_ref->{ns}; |
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156 | my $iter |
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157 | = $UTIL->ns_iter($ns_of_child, $UTIL->NS_ITER_UP); |
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158 | $iter->(); # discard |
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159 | my $ns = $UTIL->ns_cat($target, $iter->()); |
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160 | if (!exists($conditions_of{$ns})) { |
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161 | $conditions_of{$ns} = \@conditions; |
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162 | } |
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163 | } |
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164 | }, |
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165 | ); |
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166 | } |
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167 | else { |
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168 | $conditions_of{$entry->get_label()} = \@conditions; |
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169 | } |
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170 | } |
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171 | # Export |
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172 | NS: |
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173 | while (my ($ns, $conditions_ref) = each(%conditions_of)) { |
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174 | # FIXME: this should be encapsulated by the locator util. |
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175 | my @command_list = ( |
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176 | qw{svn log -q}, |
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177 | $UTIL->loc_cat($locator, $ns)->get_value(), |
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178 | ); |
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179 | my %value_of = %{$UTIL->shell_simple(\@command_list)}; |
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180 | if ($value_of{rc}) { |
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181 | return $E->throw( |
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182 | $E->SHELL, |
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183 | {command_list => \@command_list, %value_of}, |
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184 | $value_of{e}, |
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185 | ); |
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186 | } |
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187 | my @revs = map {($_ =~ qr{\Ar(\d+)})} split("\n", $value_of{o}); |
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188 | my %v_of; |
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189 | my $v = 0; |
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190 | for my $rev (reverse(@revs)) { |
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191 | $v_of{$rev} = 'v' . ++$v; |
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192 | } |
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193 | my %cur_v_of = %v_of; |
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194 | # Exports only revisions matching the conditions |
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195 | for my $condition (@{$conditions_ref}) { |
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196 | for my $rev (keys(%cur_v_of)) { |
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197 | if (!eval($rev . $condition)) { |
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198 | delete($cur_v_of{$rev}); |
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199 | } |
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200 | } |
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201 | } |
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202 | # Destination directory |
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203 | my $path = catfile($option_ref->{directory}, $ns); |
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204 | if (-d $path) { |
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205 | if ($option_ref->{new} || !keys(%cur_v_of)) { |
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206 | rmtree($path); |
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207 | } |
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208 | else { |
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209 | # Delete excluded revisions if they exist in incremental mode |
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210 | if (opendir(my $handle, $path)) { |
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211 | while (my $item = readdir($handle)) { |
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212 | if (exists($v_of{$item}) && !exists($cur_v_of{$item})) { |
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213 | for (($item, $v_of{$item})) { |
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214 | my $p = catfile($path, $_); |
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215 | rmtree($p); |
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216 | $EVENT{'delete'}->($ns, $item, $p); |
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217 | } |
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218 | } |
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219 | } |
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220 | closedir($handle); |
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221 | } |
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222 | } |
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223 | } |
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224 | if (!keys(%cur_v_of)) { |
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225 | next NS; |
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226 | } |
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227 | if (!-d $path) { |
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228 | mkpath($path); |
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229 | } |
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230 | |
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231 | # Exports each revision, and creates symlink for each v |
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232 | while (my ($rev, $v) = each(%cur_v_of)) { |
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233 | my $target = catfile($option_ref->{directory}, $ns, $v); |
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234 | if (-l $target || -f $target) { |
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235 | unlink($target); |
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236 | $EVENT{'delete'}->($ns, $v, $target); |
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237 | } |
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238 | if (!-d $target) { |
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239 | my $url_peg_rev = $UTIL->loc_cat($locator, $ns)->get_value(); |
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240 | my ($url) = $url_peg_rev =~ qr{\A(.*?)(?:@[^@/]+)?\z}msx; |
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241 | my @command_list = (qw{svn export -q -r}, $rev, $url, $target); |
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242 | my %value_of = %{$UTIL->shell_simple(\@command_list)}; |
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243 | if ($value_of{rc} || !-d $target) { |
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244 | return $E->throw( |
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245 | $E->SHELL, |
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246 | {command_list => \@command_list, %value_of}, |
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247 | $value_of{e}, |
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248 | ); |
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249 | } |
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250 | $EVENT{'create'}->($ns, $v, $target); |
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251 | } |
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252 | my $link = catfile($option_ref->{directory}, $ns, $rev); |
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253 | if (-e $link && !-l $link) { |
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254 | rmtree($link); |
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255 | $EVENT{'delete'}->($ns, $rev, $link); |
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256 | } |
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257 | elsif (-l $link && readlink($link) ne $v) { |
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258 | unlink($link); |
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259 | $EVENT{'delete'}->($ns, $rev, $link); |
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260 | } |
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261 | if (!-e $link) { |
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262 | symlink($v, $link); |
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263 | $EVENT{'create'}->($ns, $rev, $link); |
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264 | } |
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265 | } |
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266 | |
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267 | # Symbolic link to the "latest" version directory |
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268 | my $link_of_latest = catfile($option_ref->{directory}, $ns, 'latest'); |
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269 | my $v_of_latest = $cur_v_of{max(keys(%cur_v_of))}; |
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270 | if (-e $link_of_latest && !-l $link_of_latest) { |
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271 | rmtree($link_of_latest); |
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272 | $EVENT{'delete'}->($ns, 'latest', $link_of_latest); |
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273 | } |
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274 | elsif (-l $link_of_latest && readlink($link_of_latest) ne $v_of_latest) { |
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275 | unlink($link_of_latest); |
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276 | $EVENT{'delete'}->($ns, 'latest', $link_of_latest); |
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277 | } |
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278 | if (!-l $link_of_latest) { |
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279 | symlink($v_of_latest, $link_of_latest); |
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280 | $EVENT{'create'}->($ns, 'latest', $link_of_latest); |
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281 | } |
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282 | } |
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283 | $EVENT{'timer'}->($timer->()); |
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284 | } |
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285 | |
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286 | # Searches FCM keywords. |
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287 | sub _keyword_find { |
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288 | my ($attrib_ref, $option_ref, @args) = @_; |
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289 | my $UTIL = $attrib_ref->{util}; |
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290 | my @entries; |
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291 | if (@args) { |
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292 | for my $key (@args) { |
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293 | my $iter = $UTIL->loc_kw_iter(FCM::Context::Locator->new($key)); |
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294 | while (my $entry = $iter->()) { |
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295 | if (!$entry->get_implied()) { |
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296 | $UTIL->loc_kw_load_rev_prop($entry); |
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297 | push(@entries, $entry); |
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298 | } |
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299 | } |
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300 | } |
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301 | } |
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302 | else { |
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303 | @entries = values(%{$UTIL->loc_kw_ctx()->get_entry_by_key()}); |
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304 | } |
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305 | for my $entry (sort {$a->get_key() cmp $b->get_key()} @entries) { |
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306 | $UTIL->event(FCM::Context::Event->KEYWORD_ENTRY, $entry); |
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307 | } |
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308 | return; |
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309 | } |
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310 | |
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311 | # ------------------------------------------------------------------------------ |
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312 | 1; |
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313 | __END__ |
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314 | |
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315 | =head1 NAME |
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316 | |
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317 | FCM::System::Misc |
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318 | |
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319 | =head1 SYNOPSIS |
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320 | |
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321 | use FCM::System::Misc; |
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322 | my $system = FCM::System::Misc->new(\%attrib); |
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323 | $system->keyword_find(@args); |
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324 | |
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325 | =head1 DESCRIPTION |
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326 | |
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327 | The rest of the FCM system. |
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328 | |
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329 | =head1 METHODS |
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330 | |
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331 | Implements the browse(), config_parse(), export_items() and keyword_find() |
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332 | methods for L<FCM::System|FCM::System>. See L<FCM::System|FCM::System> for a |
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333 | description of the calling interfaces of these functions. |
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334 | |
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335 | =head1 DIAGNOSTICS |
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336 | |
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337 | =head2 FCM::System::Exception |
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338 | |
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339 | Methods of this class may throw a FCM::System::Exception. |
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340 | |
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341 | =head1 COPYRIGHT |
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342 | |
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343 | Copyright (C) 2006-2021 British Crown (Met Office) & Contributors. |
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344 | |
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345 | =cut |
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