1 | #!/usr/bin/perl
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2 | use strict;
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3 | use warnings;
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4 |
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5 | # Requires setup.bash to have been sourced
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6 | BEGIN
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7 | {
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8 | die "GSDLHOME not set\n" unless (defined $ENV{'GSDLHOME'} && $ENV{'GSDLHOME'} ne '');
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9 | die "GSDLOS not set\n" unless defined $ENV{'GSDLOS'};
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10 | die "GEXTPARALLELBUILDING not set\n" unless defined $ENV{'GEXTPARALLELBUILDING'};
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11 | die "GEXTPARALLELBUILDING_INSTALLED not set\n" unless defined $ENV{'GEXTPARALLELBUILDING_INSTALLED'};
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12 | die "HDFS HOST not set (set in <gsdl>/ext/parallel_processing/setup.bash)\n" unless defined $ENV{'HDFSHOST'};
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13 | die "HDFS PORT not set (set in <gsdl>/ext/parallel_processing/setup.bash)\n" unless defined $ENV{'HDFSPORT'};
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14 | }
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15 |
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16 | print "===== Greenstone Import using Hadoop =====\n";
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17 |
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18 | # 0. Init
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19 | my $collection = 'test';
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20 | my $use_thrift = 1;
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21 | my $start_thrift = 0;
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22 | my $debug = 0;
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23 | my $dry_run = 0;
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24 | my $stagger = 0;
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25 | my $flush_diskcache = 0;
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26 | my $use_nfs = 0;
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27 |
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28 | my $gsdl_home = $ENV{'GSDLHOME'};
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29 | my $gsdl_hadoop_ext = $ENV{'GEXTPARALLELBUILDING_INSTALLED'};
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30 | my $hadoop_exe = 'hadoop'; # you may add path
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31 | my $java_library = 'HadoopGreenstoneIngest2';
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32 | my $cluster_head = $ENV{'HDFSHOST'}; # may not be true on advanced configs
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33 | my $hdfs_fs_prefix = 'HDThriftFS://';
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34 | my $refresh_import = 0;
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35 | my $username = `whoami`;
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36 | chomp($username);
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37 |
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38 | `rocks > /dev/null 2>&1`;
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39 | my $is_rocks_cluster = ($? == 0);
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40 |
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41 | # 1. Read and validate parameters
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42 | print 'Options: ' . join(' ', @ARGV) . "\n";
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43 | if (defined $ARGV[0] && $ARGV[0] =~ /^[a-z0-9]+$/i)
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44 | {
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45 | $collection = $ARGV[0];
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46 | print ' collection: ' . $collection . "\n";
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47 | }
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48 | else
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49 | {
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50 | print STDERR "usage: hadoop_import.pl <collection> [-debug] [-disable_thrift] [-dry_run] [-start_thrift] [-refresh_import] [-flush_diskcache] [-use_nfs] [-stagger]\n";
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51 | print STDERR "where: [debug] print more debug messages to STDERR\n";
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52 | print STDERR " [dry_run] don't actually perform an file actions\n";
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53 | exit;
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54 | }
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55 | my $offset = 1;
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56 | while (defined $ARGV[$offset])
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57 | {
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58 | if ($ARGV[$offset] eq '-debug')
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59 | {
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60 | $debug = 1;
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61 | }
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62 | if ($ARGV[$offset] eq '-disable_thrift')
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63 | {
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64 | $use_thrift = 0;
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65 | }
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66 | if ($ARGV[$offset] eq '-dry_run')
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67 | {
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68 | $dry_run = 1;
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69 | }
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70 | if ($ARGV[$offset] eq '-refresh_import')
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71 | {
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72 | $refresh_import = 1;
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73 | }
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74 | if ($ARGV[$offset] eq '-stagger')
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75 | {
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76 | $stagger = 1;
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77 | }
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78 | if ($ARGV[$offset] eq '-flush_diskcache')
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79 | {
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80 | $flush_diskcache = 1;
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81 | }
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82 | if ($ARGV[$offset] eq '-start_thrift')
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83 | {
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84 | $start_thrift = 1;
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85 | }
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86 | if ($ARGV[$offset] eq '-use_nfs')
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87 | {
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88 | $use_nfs = 1;
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89 | }
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90 | $offset++;
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91 | }
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92 |
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93 | if (!$use_thrift)
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94 | {
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95 | $hdfs_fs_prefix = 'HDFSShell://';
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96 | }
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97 | if ($use_nfs)
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98 | {
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99 | $hdfs_fs_prefix = '/hdfs';
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100 | }
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101 |
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102 | my $gs_collection_dir = $gsdl_home . '/collect/' . $collection;
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103 | my $gs_import_dir = $gs_collection_dir . '/import';
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104 | if (!-d $gs_import_dir)
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105 | {
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106 | die("Error! Collection's import directory cannot be found: " . $gs_import_dir . "\n");
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107 | }
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108 | my $gs_results_dir = $gs_collection_dir . '/results';
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109 | if (!-d $gs_results_dir)
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110 | {
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111 | mkdir($gs_results_dir, 0755);
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112 | }
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113 | $gs_results_dir .= '/' . time();
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114 | if (!-d $gs_results_dir)
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115 | {
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116 | mkdir($gs_results_dir, 0755);
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117 | }
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118 | # - directories within HDFS
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119 | my $hdfs_input_dir = &urlCat('hdfs://' . $ENV{'HDFSHOST'} . ':' . $ENV{'HDFSPORT'}, 'user', $username, 'gsdl', 'collect', $collection, 'import');
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120 | print "HDFS Import Directory: " . $hdfs_input_dir . "\n";
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121 | my $nfs_input_dir = &urlCat('/hdfs', 'user', $username, 'gsdl', 'collect', $collection, 'import');
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122 | if ($use_nfs)
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123 | {
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124 | print "=> NFS Import Directory: " . $nfs_input_dir . "\n";
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125 | }
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126 | my $hdfs_output_dir = &urlCat('hdfs://' . $ENV{'HDFSHOST'} . ':' . $ENV{'HDFSPORT'}, 'user', $username, 'gsdl', 'collect', $collection, 'archives');
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127 | print "HDFS Archives Directory: " . $hdfs_output_dir . "\n";
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128 | my $nfs_output_dir = &urlCat('/hdfs', 'user', $username, 'gsdl', 'collect', $collection, 'archives');
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129 | if ($use_nfs)
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130 | {
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131 | print "=> NFS Archives Directory: " . $nfs_output_dir . "\n";
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132 | }
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133 |
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134 | # 2. Copy the import directory into HDFS
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135 | print " * Replicating import directory in HDFS...";
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136 | # - check if import directory already exists
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137 | my $hdfs_import_exists = 0;
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138 | if ($use_nfs)
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139 | {
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140 | if (-d $nfs_input_dir)
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141 | {
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142 | $hdfs_import_exists = 1;
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143 | }
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144 | }
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145 | else
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146 | {
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147 | $hdfs_import_exists = &hdfsTest('d', 0, $hdfs_input_dir);
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148 | }
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149 | if ($refresh_import || !$hdfs_import_exists)
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150 | {
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151 | # - clear out the old import directory
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152 | if ($hdfs_import_exists)
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153 | {
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154 | if ($use_nfs)
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155 | {
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156 | &recursiveDelete($nfs_input_dir, '/hdfs');
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157 | }
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158 | else
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159 | {
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160 | &hdfsCommand('rmr', $hdfs_input_dir);
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161 | }
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162 | }
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163 | # - now recursively copy the contents of import directory into HDFS ensuring
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164 | # that relative paths are maintained
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165 | my $file_count = 0;
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166 | if ($use_nfs)
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167 | {
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168 | $file_count = &recursiveCopy($gs_import_dir, $nfs_input_dir);
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169 | }
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170 | else
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171 | {
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172 | $file_count = &recursiveCopy($gs_import_dir, $hdfs_input_dir);
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173 | }
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174 | &debugPrint($file_count . " files 'putted'");
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175 | print "Done!\n";
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176 | }
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177 | else
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178 | {
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179 | print "Already exists!\n";
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180 | }
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181 |
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182 | # - clear out the archives regardless
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183 | my $gs_archives_dir = $gs_collection_dir . '/archives';
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184 | my $deleted_archives = 0;
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185 | if (-e $gs_archives_dir)
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186 | {
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187 | print " * Clearing existing archives directory for this collection... ";
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188 | &recursiveDelete($gs_archives_dir, $gsdl_home);
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189 | $deleted_archives = 1;
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190 | }
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191 | mkdir($gs_archives_dir, 0755);
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192 | my $hdfs_archives_exists = 0;
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193 | if ($use_nfs)
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194 | {
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195 | if (-d $nfs_output_dir)
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196 | {
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197 | $hdfs_archives_exists = 1;
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198 | }
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199 | }
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200 | else
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201 | {
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202 | $hdfs_archives_exists = &hdfsTest('d', 0, $hdfs_output_dir)
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203 | }
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204 | if ($hdfs_archives_exists)
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205 | {
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206 | if (!$deleted_archives)
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207 | {
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208 | print " * Clearing existing archives directory for this collection... ";
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209 | }
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210 | if ($use_nfs)
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211 | {
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212 | &recursiveDelete($nfs_output_dir, '/hdfs');
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213 | }
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214 | else
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215 | {
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216 | &hdfsCommand('rmr', $hdfs_output_dir);
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217 | }
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218 | $deleted_archives = 1;
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219 | }
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220 | if ($deleted_archives)
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221 | {
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222 | print "Done!\n";
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223 | }
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224 |
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225 | # - watch for cached directories for Media based collections
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226 | my $gs_cached_dir = $gs_collection_dir . '/cached';
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227 | if (-e $gs_cached_dir)
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228 | {
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229 | print " * Clearing existing cached media directory for this collection... ";
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230 | &recursiveDelete($gs_cached_dir, $gsdl_home);
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231 | print "Done!\n";
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232 | }
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233 |
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234 | # - clear out any old logs
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235 | print " * Clearing existing logs for this collection... ";
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236 | my $gs_logs_dir = $gs_collection_dir . '/logs';
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237 | if (!&dirIsEmpty($gs_logs_dir))
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238 | {
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239 | &recursiveDelete($gs_logs_dir . '/*.*', $gsdl_home);
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240 | }
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241 | if (!&dirIsEmpty('/tmp/greenstone'))
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242 | {
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243 | &shellCommand('rm -f /tmp/greenstone/*.*');
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244 | &shellCommand('rm -rf /tmp/gsimport*');
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245 | &shellCommand('rm -rf /tmp/thrift');
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246 | }
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247 | if ($is_rocks_cluster)
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248 | {
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249 | &shellCommand('rocks run host "rm -f /tmp/greenstone/*.*"');
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250 | &shellCommand('rocks run host "rm -rf /tmp/gsimport*"');
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251 | &shellCommand('rocks run host "rm -rf /tmp/thrift"');
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252 | }
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253 | print "Done!\n";
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254 |
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255 | # - flush DNS cache too, so we are playing on a level field
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256 | if ($flush_diskcache)
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257 | {
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258 | print " * Flushing disk cache... ";
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259 | &shellCommand('flush_caches.pl');
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260 | if ($is_rocks_cluster)
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261 | {
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262 | &shellCommand('rocks run host "flush_caches.pl"');
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263 | }
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264 | print "Done!\n";
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265 | }
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266 |
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267 | # - If we've been asked to Stagger start-up, add "delay.me" files to the
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268 | # compute nodes
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269 | if ($is_rocks_cluster && $stagger)
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270 | {
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271 | &shellCommand('rocks run host "touch /tmp/greenstone/delay.me && chmod a+rw /tmp/greenstone/delay.me"');
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272 | }
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273 |
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274 | # 3. Special case for *Server type infodbs (namely TDBServer and GDBMServer)
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275 | # where we start the server now to ensure it lives on the head node
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276 | my $server_host = '';
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277 | my $server_port = '';
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278 | my $configuration_path = $gs_collection_dir . '/etc/collect.cfg';
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279 | my $infodbtype = `grep -P "^infodbtype" $configuration_path`;
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280 | my $server_prefix = '';
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281 | if ($infodbtype =~ /^infodbtype\s+(gdbm|tdb)server/i)
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282 | {
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283 | $server_prefix = uc($1);
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284 | print " * Starting " . $server_prefix . "Server... ";
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285 | # - start the server on the head node and retrieve the host and port from
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286 | # the output
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287 | my $launcher_command = $server_prefix . "Server.pl " . $$ . " " . $collection;
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288 | my $launcher_output = &shellCommand($launcher_command);
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289 | if ($launcher_output =~ /Server now listening on ([^:]+):(\d+)/)
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290 | {
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291 | $server_host = $1;
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292 | $server_port = $2;
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293 | print "running on " . $server_host . ":" . $server_port . "\n";
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294 | }
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295 | else
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296 | {
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297 | print "Failed!\n";
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298 | exit;
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299 | }
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300 | # - use the client tool to add ourselves as a listener
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301 | print " * Registering as listener... ";
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302 | my $client_command = $server_prefix . "Client.pl " . $server_host . " " . $server_port . " \"#a:" . $$ . "\"";
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303 | &shellCommand($client_command);
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304 | print "Done!\n";
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305 | }
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306 | elsif ($infodbtype =~ /stdoutxml/)
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307 | {
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308 | print " * InfoDB messages will be written to STDOUT... Cool bananas!\n";
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309 | }
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310 | else
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311 | {
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312 | print "Error! True Hadoop processing is only available when Greenstone is\n";
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313 | print " configured to use either GDBMServer or TDBServer.\n";
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314 | exit;
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315 | }
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316 |
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317 | # 3.5 Start up the thrift server(s) if we've been asked to
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318 | my $thrift_log = $gs_results_dir . '/thriftctl.log';
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319 | if ($start_thrift)
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320 | {
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321 | if ($is_rocks_cluster)
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322 | {
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323 | print " * Starting Thrift Servers (on compute nodes)... ";
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324 | &shellCommand('rocks run host "cd ' . $ENV{'GEXTPARALLELBUILDING'} . '/packages/ThriftFS-0.9.0/bin && ./thriftctl.sh start" > "' . $thrift_log . '" 2>&1');
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325 | }
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326 | # single server
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327 | else
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328 | {
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329 | print " * Starting Thrift Server... ";
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330 | &shellCommand('cd ' . $ENV{'GEXTPARALLELBUILDING'} . '/packages/ThriftFS-0.9.0/bin && thriftctl.sh start > "' . $thrift_log . '" 2>&1');
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331 | }
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332 | print "Done!\n";
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333 | }
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334 |
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335 | my $actual_archives_dir;
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336 | if ($use_nfs)
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337 | {
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338 | $actual_archives_dir = $nfs_output_dir;
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339 | }
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340 | else
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341 | {
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342 | $actual_archives_dir = $hdfs_output_dir;
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343 | $actual_archives_dir =~ s/hdfs:\/\//$hdfs_fs_prefix/;
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344 | }
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345 |
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346 | # 4. Running Hadoop - we hand in the import dirctory (within HDFS) as the input
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347 | # and allow the FileInputFormat to split it up into files to be processed
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348 | # in Greenstone. This works for collections with one file per document, like
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349 | # Lorem and ReplayMe, but might not work well with multiple file documents
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350 | # such as the Demo collection
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351 | print " * Running import using Hadoop...";
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352 | my $hadoop_log = $gs_results_dir . '/hadoop.log';
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353 | &shellCommand('echo "host:' . $ENV{'HDFSHOST'} . '" > ' . $hadoop_log);
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354 | my $hadoop_command = $hadoop_exe . ' jar ' . $gsdl_hadoop_ext . '/lib/hadoop-greenstone.jar org.nzdl.gsdl.' . $java_library . ' ';
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355 | $hadoop_command .= '"' . $gsdl_home . '" '; # Greenstone's home dir
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356 | $hadoop_command .= '"' . $ENV{'HADOOP_PREFIX'} . '" '; # Hadoop's home dir
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357 | $hadoop_command .= $collection . ' '; # The collection name
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358 | $hadoop_command .= '"' . $actual_archives_dir . '" '; # Collection archive dir
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359 | $hadoop_command .= '"' . $hdfs_fs_prefix . '" '; # Prefix for talking to HDFS (driver)
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360 | $hadoop_command .= '"' . $hdfs_input_dir . '" '; # HDFS in
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361 | $hadoop_command .= '"' . $hdfs_output_dir . '" '; # HDFS out
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362 | $hadoop_command .= ' >> ' . $hadoop_log . ' 2>&1'; # Redirect to log
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363 | &shellCommand($hadoop_command);
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364 | print "Done!\n";
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365 |
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366 | # 5. If we ran *Server infodbs, we now need to shut them down
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367 | if ($server_prefix ne '')
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368 | {
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369 | print " * Deregistering as listener and shutting down... ";
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370 | # - deregister as a listener
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371 | my $client_command1 = $server_prefix . "Client.pl " . $server_host . " " . $server_port . " \"#r:" . $$ . "\"";
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372 | &shellCommand($client_command1);
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373 | # - send quit command
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374 | my $client_command2 = $server_prefix . "Client.pl " . $server_host . " " . $server_port . " \"#q:" . $$ . "\"";
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375 | &shellCommand($client_command2);
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376 | print "Done!\n";
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377 | }
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378 |
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379 | # 5.5 We started them - so we better stop the thrift servers too
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380 | # 3.5 Start up the thrift server(s) if we've been asked to
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381 | if ($start_thrift)
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382 | {
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383 | if ($is_rocks_cluster)
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384 | {
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385 | print " * Stopping Thrift Servers (on compute nodes)... ";
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386 | &shellCommand('rocks run host "cd ' . $ENV{'GEXTPARALLELBUILDING'} . '/packages/ThriftFS-0.9.0/bin && ./thriftctl.sh stop" >> "' . $thrift_log . '" 2>&1 ');
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387 | }
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388 | # single server
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389 | else
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390 | {
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391 | print " * Stoping Thrift Server... ";
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392 | &shellCommand('cd ' . $ENV{'GEXTPARALLELBUILDING'} . '/packages/ThriftFS-0.9.0/bin && thriftctl.sh start >> "' . $thrift_log . '" 2>&1');
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393 | }
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394 | print "Done!\n";
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395 | }
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396 |
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397 | # 6. Gather logs
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398 | print " * Gathering logs from compute nodes... ";
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399 | # - local files
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400 | if (!&dirIsEmpty('/tmp/greenstone'))
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401 | {
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402 | &shellCommand('cp /tmp/greenstone/*.* ' . $gs_results_dir);
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403 | }
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404 | if (-d $gs_collection_dir . '/logs')
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405 | {
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406 | &shellCommand('cp ' . $gs_collection_dir . '/logs/*.* ' . $gs_results_dir);
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407 | }
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408 | if ($start_thrift && -d '/tmp/thrift')
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409 | {
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410 | &shellCommand('cp /tmp/thrift/*.log ' . $gs_results_dir);
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411 | }
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412 | # - remote files
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413 | if ($is_rocks_cluster)
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414 | {
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415 | &shellCommand('rocks run host "scp /tmp/greenstone/*.* ' . $cluster_head . ':' . $gs_results_dir . '"');
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416 | &shellCommand('rocks run host "scp /tmp/gsimport-*/logs/*.log ' . $cluster_head . ':' . $gs_results_dir . '"');
|
---|
417 | if ($start_thrift)
|
---|
418 | {
|
---|
419 | &shellCommand('rocks run host "scp /tmp/thrift/*.log ' . $cluster_head . ':' . $gs_results_dir . '"');
|
---|
420 | }
|
---|
421 | }
|
---|
422 | print "Done!\n";
|
---|
423 |
|
---|
424 | # - generate data locality report...
|
---|
425 | if (!$use_nfs && !$use_thrift)
|
---|
426 | {
|
---|
427 | &shellCommand('parse_task_info_from_hadoop_log.pl "' . $gs_results_dir . '"');
|
---|
428 | }
|
---|
429 |
|
---|
430 | # - hadoop report...
|
---|
431 | &shellCommand('hadoop_report.pl "' . $gs_results_dir . '"');
|
---|
432 |
|
---|
433 | # - and gantt chart
|
---|
434 | &shellCommand('generate_gantt.pl -width 1600 "' . $gs_results_dir . '"');
|
---|
435 |
|
---|
436 | # 7. Done - clean up
|
---|
437 | print " * Cleaning up temporary files... ";
|
---|
438 | &shellCommand('rm -rf /tmp/greenstone');
|
---|
439 | &shellCommand('rm -rf /tmp/gsimport*');
|
---|
440 | if ($is_rocks_cluster)
|
---|
441 | {
|
---|
442 | &shellCommand('rocks run host "rm -rf /tmp/greenstone"');
|
---|
443 | &shellCommand('rocks run host "rm -rf /tmp/gsimport*"');
|
---|
444 | }
|
---|
445 | print "Done!\n";
|
---|
446 | print "Complete!\n\n";
|
---|
447 |
|
---|
448 | exit;
|
---|
449 |
|
---|
450 | # /** @function debugPrint
|
---|
451 | # */
|
---|
452 | sub debugPrint
|
---|
453 | {
|
---|
454 | my $msg = shift(@_);
|
---|
455 | if ($debug)
|
---|
456 | {
|
---|
457 | print "[Debug] " . $msg . "\n";
|
---|
458 | }
|
---|
459 | }
|
---|
460 | # /** debugPrint() **/
|
---|
461 |
|
---|
462 | # /** @function hdfsCommand
|
---|
463 | # */
|
---|
464 | sub hdfsCommand
|
---|
465 | {
|
---|
466 | my $command = shift(@_);
|
---|
467 | my $paths = '"' . join('" "', @_) . '"';
|
---|
468 | my $hdfs_command = $hadoop_exe . ' fs -' . $command . ' ' . $paths . ' 2>&1';
|
---|
469 | &shellCommand($hdfs_command);
|
---|
470 | return $?;
|
---|
471 | }
|
---|
472 | # /** hdfsCommand() **/
|
---|
473 |
|
---|
474 | # /** @function hdfsTest
|
---|
475 | # */
|
---|
476 | sub hdfsTest
|
---|
477 | {
|
---|
478 | my $command = shift(@_);
|
---|
479 | my $test_target = shift(@_);
|
---|
480 | my $result = &hdfsCommand('test -' . $command, @_);
|
---|
481 | return ($result == $test_target);
|
---|
482 | }
|
---|
483 | # /** hdfsTest() **/
|
---|
484 |
|
---|
485 | # /**
|
---|
486 | # */
|
---|
487 | sub printUsage
|
---|
488 | {
|
---|
489 | print "usage: hadoop_import.pl <collection> [<refresh_import>] [<\"removeold\"|\"keepold\">]\n";
|
---|
490 | exit;
|
---|
491 | }
|
---|
492 | # /** printUsage() **/
|
---|
493 |
|
---|
494 |
|
---|
495 | ## @function recursiveCopy()
|
---|
496 | #
|
---|
497 | sub recursiveCopy
|
---|
498 | {
|
---|
499 | my ($src_dir, $hdfs_dir) = @_;
|
---|
500 | my $file_count = 0;
|
---|
501 | # - create the directory in HDFS
|
---|
502 | if ($use_nfs)
|
---|
503 | {
|
---|
504 | &shellCommand('mkdir "' . $hdfs_dir . '"');
|
---|
505 | }
|
---|
506 | else
|
---|
507 | {
|
---|
508 | &hdfsCommand('mkdir', $hdfs_dir);
|
---|
509 | }
|
---|
510 | # - search $src_dir for files
|
---|
511 | opendir(DH, $src_dir) or die("Error! Cannot open directory for reading: " . $src_dir);
|
---|
512 | my @files = readdir(DH);
|
---|
513 | closedir(DH);
|
---|
514 | foreach my $file (@files)
|
---|
515 | {
|
---|
516 | # - skip dot prefix files
|
---|
517 | if ($file !~ /^\./)
|
---|
518 | {
|
---|
519 | my $src_path = $src_dir . '/' . $file;
|
---|
520 | # - recurse directories, remembering to extend HDFS dir too
|
---|
521 | if (-d $src_path)
|
---|
522 | {
|
---|
523 | my $new_hdfs_dir = $hdfs_dir . '/' . $file;
|
---|
524 | $file_count += &recursiveCopy($src_path, $new_hdfs_dir);
|
---|
525 | }
|
---|
526 | # - and use 'put' to copy files
|
---|
527 | else
|
---|
528 | {
|
---|
529 | my $hdfs_path = $hdfs_dir . '/' . $file;
|
---|
530 | if ($use_nfs)
|
---|
531 | {
|
---|
532 | &shellCommand('nice -n 5 cp "' . $src_path . '" "' . $hdfs_path . '"');
|
---|
533 | }
|
---|
534 | else
|
---|
535 | {
|
---|
536 | &hdfsCommand('put', $src_path, $hdfs_path);
|
---|
537 | }
|
---|
538 | $file_count++;
|
---|
539 | }
|
---|
540 | }
|
---|
541 | }
|
---|
542 | return $file_count;
|
---|
543 | }
|
---|
544 | ## recursiveCopy() ##
|
---|
545 |
|
---|
546 |
|
---|
547 | # /** @function shellCommand
|
---|
548 | # */
|
---|
549 | sub shellCommand
|
---|
550 | {
|
---|
551 | my $cmd = shift(@_);
|
---|
552 | my $output = '';
|
---|
553 | &debugPrint($cmd);
|
---|
554 | if (!$dry_run)
|
---|
555 | {
|
---|
556 | $output = `$cmd`;
|
---|
557 | }
|
---|
558 | return $output;
|
---|
559 | }
|
---|
560 | # /** shellCommand() **/
|
---|
561 |
|
---|
562 | # /** @function urlCat
|
---|
563 | # */
|
---|
564 | sub urlCat
|
---|
565 | {
|
---|
566 | my $url = join('/', @_);
|
---|
567 | return $url;
|
---|
568 | }
|
---|
569 | # /** urlCat() **/
|
---|
570 |
|
---|
571 | # /**
|
---|
572 | # */
|
---|
573 | sub dirIsEmpty
|
---|
574 | {
|
---|
575 | my $dir = shift(@_);
|
---|
576 | my @files;
|
---|
577 | if (-e $dir)
|
---|
578 | {
|
---|
579 | opendir(DIR, $dir) or die $!;
|
---|
580 | @files = grep { !m/\A\.{1,2}\Z/} readdir(DIR);
|
---|
581 | closedir(DIR);
|
---|
582 | }
|
---|
583 | @files ? 0 : 1;
|
---|
584 | }
|
---|
585 | # /** dirIsEmpty() **/
|
---|
586 |
|
---|
587 |
|
---|
588 | ## @function recursiveDelete()
|
---|
589 | #
|
---|
590 | sub recursiveDelete
|
---|
591 | {
|
---|
592 | my ($dir, $prefix) = @_;
|
---|
593 | if ($dir =~ /^$prefix/)
|
---|
594 | {
|
---|
595 | &shellCommand('rm -rf "' . $dir . '"');
|
---|
596 | }
|
---|
597 | }
|
---|
598 | ## recursiveDelete() ##
|
---|