1 | #!/usr/bin/perl -w
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2 |
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3 | # $Id: dasscm 208 2007-07-02 15:17:18Z joergs $
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4 |
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5 | use strict;
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6 |
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7 | use Env
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8 | qw($DASSCM_PROD $DASSCM_REPO $USER $DASSCM_USERNAME $DASSCM_USER $DASSCM_PASSWORD);
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9 | use Cwd;
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10 | use Term::ReadKey;
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11 | use File::Basename;
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12 | use File::stat;
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13 | use File::Path;
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14 | use File::Copy;
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15 | use Getopt::Long;
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16 |
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17 | #
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18 | # used ConfigFile instead of SmartClient::Config,
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19 | # because the huge amount of SmartClient dependencies
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20 | #use SmartClient::Config;
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21 | use ConfigFile;
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22 |
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23 | #####################################################################
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24 | #
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25 | # global
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26 | #
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27 |
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28 | my $config_file = "/etc/dasscm.conf";
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29 |
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30 | # my $config = SmartClient::Config->( $config_file );
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31 | my $config = ConfigFile::read_config_file($config_file);
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32 | my $DASSCM_LOCAL_REPOSITORY_BASE;
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33 | my $DASSCM_REPOSITORY_NAME;
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34 | my $DASSCM_SVN_REPOSITORY;
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35 |
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36 | my $SVN = "svn ";
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37 | my $svnOptions = "";
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38 | my $svnCheckoutCredentials = "";
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39 | my $svnPasswordCredentials = "";
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40 |
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41 | # command line options get stored in options hash
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42 | my %options = ();
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43 |
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44 | # subcommand, that gets executed (add, commit, ...)
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45 | my $command;
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46 |
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47 | my $verbose = 0;
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48 |
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49 | #####################################################################
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50 | #
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51 | # util functions
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52 | #
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53 | sub usage()
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54 | {
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55 | print "usage: dasscm <subcommand> [options] [args]\n";
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56 | print "\n";
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57 | print "dasscm is intended to help versioning configuration files\n";
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58 | print "\n";
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59 | print "Available subcommands:\n";
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60 | print " init\n";
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61 | print " login\n";
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62 | print " add <filename>\n";
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63 | print " commit <filename>\n";
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64 | print " diff <filename>\n";
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65 | print " help <subcommand>\n";
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66 | print "\n";
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67 | print "preperation:\n";
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68 | print "check out the configuration repository, e.g.\n";
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69 | print
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70 | "svn checkout --no-auth-cache --username USERNAME https://dass-it.de/svn/dasscm/HOSTNAME\n";
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71 | print "environment variables\n", " DASSCM_REPO\n", " DASSCM_PROD¸n",
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72 | " DASSCM_USERNAME\n", " DASSCM_PASSWORD\n", "are evaluated.\n";
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73 | print "\n";
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74 | }
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75 |
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76 | sub check_env()
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77 | {
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78 |
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79 | # DASSCM_PROD
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80 | if ( !$DASSCM_PROD ) {
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81 | $DASSCM_PROD = "/";
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82 | }
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83 |
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84 | if ( !-d $DASSCM_PROD ) {
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85 | die "DASSCM_PROD ($DASSCM_PROD) is not set to a directory.\n";
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86 | }
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87 | if ($verbose) { print "DASSCM_PROD: " . $DASSCM_PROD . "\n"; }
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88 |
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89 | # DASSCM_REPOSITORY_NAME
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90 | if ( !$DASSCM_REPOSITORY_NAME ) {
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91 | die
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92 | "Variable DASSCM_REPOSITORY_NAME is not defined.\nIt needs to be a unique name.\nNormally the full qualified host name is used.\nUse file $config_file to configure it.\n";
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93 | }
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94 |
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95 | # DASSCM_REPO
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96 | if ( !$DASSCM_REPO ) {
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97 | if ( $DASSCM_LOCAL_REPOSITORY_BASE && $DASSCM_REPOSITORY_NAME ) {
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98 | $DASSCM_REPO =
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99 | $DASSCM_LOCAL_REPOSITORY_BASE . "/" . $DASSCM_REPOSITORY_NAME;
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100 | } else {
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101 | die
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102 | "Envirnonment variable DASSCM_REPO not set.\nSet DASSCM_REPO to the directory of the versioning system checkout for this machine.\n";
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103 | }
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104 | }
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105 | print "DASSCM_REPO: " . $DASSCM_REPO . "\n";
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106 |
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107 | #
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108 | # check if local repository directory exist (if not creating by init)
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109 | #
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110 | if ( $command ne "init" ) {
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111 | if ( not -d $DASSCM_REPO ) {
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112 | die
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113 | "Can't access local repository DASSCM_REPO\n($DASSCM_REPO)\nCheck configuration and execute\n dasscm init\n";
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114 | }
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115 |
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116 | #
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117 | # user settings
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118 | #
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119 |
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120 | # DASSCM_USER is legacy. Use DASSCM_USERNAME instead
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121 | if ( !$DASSCM_USERNAME ) {
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122 | $DASSCM_USERNAME = $DASSCM_USER;
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123 | }
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124 |
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125 | # user root is not allowed for checkins.
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126 | # if user is root, DASSCM_USER has to be set,
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127 | # otherwise USER can be used
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128 | if ( "$USER" eq "root" ) {
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129 | if ( ( not $DASSCM_USERNAME ) and ( $command ne "login" ) ) {
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130 | die
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131 | "Envirnonment variable DASSCM_USERNAME not set.\nSet DASSCM_USERNAME to your subversion user account.\n";
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132 | }
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133 | $svnOptions .= " --no-auth-cache ";
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134 | } elsif ( !$DASSCM_USERNAME ) {
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135 | $DASSCM_USERNAME = $USER;
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136 | }
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137 |
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138 | #
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139 | # password
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140 | #
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141 | if ($DASSCM_PASSWORD) {
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142 | $svnPasswordCredentials = " --password $DASSCM_PASSWORD ";
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143 | }
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144 | }
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145 |
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146 | #$svnOptions .= " --username $DASSCM_USERNAME "
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147 | }
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148 |
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149 | sub check_parameter(@)
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150 | {
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151 | }
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152 |
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153 | sub get_filenames(@)
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154 | {
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155 | my $filename_prod = $_[0];
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156 | if ( !( $filename_prod =~ m/^\// ) ) {
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157 | $filename_prod = cwd() . "/" . $filename_prod;
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158 | }
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159 |
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160 | -r $filename_prod or die "$filename_prod is not accessable";
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161 |
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162 | # TODO: dirname buggy: eg. "/etc/" is reduced to "/",
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163 | # "/etc" is used as filename
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164 | my $dirname_prod = dirname($filename_prod);
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165 | chdir $dirname_prod or die $!;
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166 | $dirname_prod = cwd();
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167 | my $basename = basename($filename_prod);
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168 |
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169 | print "dir: " . $dirname_prod . "\n";
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170 | print "fn: " . $basename . "\n";
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171 |
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172 | my $dirname_repo = $DASSCM_REPO . "/" . $dirname_prod;
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173 | my $filename_repo = "$dirname_repo/$basename";
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174 |
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175 | return (
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176 | $basename, $dirname_prod, $dirname_repo,
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177 | $filename_prod, $filename_repo
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178 | );
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179 | }
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180 |
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181 | sub run_command
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182 | {
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183 | my $command = shift;
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184 |
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185 | #print "executing command: " . $command . "\n";
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186 |
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187 | open( RESULT, $command . ' 2>&1 |' );
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188 | my @result = <RESULT>;
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189 | close(RESULT);
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190 | my $retcode = $? >> 8;
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191 |
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192 | #print @result;
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193 | #if( $retcode ) { print "return code: " . $retcode . "\n"; }
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194 |
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195 | return ( $retcode, @result );
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196 | }
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197 |
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198 | sub run_interactive
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199 | {
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200 |
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201 | if ($verbose) {
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202 | print "run_interactive:" . join( " ", @_ ) . "\n";
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203 | }
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204 |
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205 | system(@_);
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206 | if ( $? == -1 ) {
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207 | printf "failed to execute: $!\n";
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208 | } elsif ( $? & 127 ) {
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209 | printf "child died with signal %d, %s coredump\n", ( $? & 127 ),
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210 | ( $? & 128 ) ? 'with' : 'without';
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211 | } elsif ( $? >> 8 != 0 ) {
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212 | printf "child exited with value %d\n", $? >> 8;
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213 | }
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214 | return ( $? >> 8 );
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215 | }
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216 |
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217 | sub svn_check_credentials( $$ )
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218 | {
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219 | my $username = shift;
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220 | my $password = shift;
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221 |
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222 | ( my $rc_update, my @result ) =
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223 | run_command(
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224 | "$SVN info --non-interactive --no-auth-cache --username $username --password $password $DASSCM_SVN_REPOSITORY"
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225 | );
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226 |
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227 | print @result;
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228 |
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229 | if ( $rc_update != 0 ) {
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230 | print @result;
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231 | die;
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232 | }
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233 |
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234 | }
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235 |
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236 | sub svn_update( ;$ )
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237 | {
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238 | my $update_path = shift || $DASSCM_REPO;
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239 | ( my $rc_update, my @result ) =
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240 | run_command("$SVN update $svnCheckoutCredentials $update_path");
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241 | if ( $rc_update != 0 ) {
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242 | print @result;
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243 | die;
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244 | }
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245 |
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246 | print @result;
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247 |
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248 | }
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249 |
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250 | #####################################################################
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251 | #
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252 | # functions
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253 |
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254 | sub help(;@)
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255 | {
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256 | if ( @_ == 0 ) {
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257 | usage();
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258 | } else {
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259 | print "help for @_: ...\n";
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260 | }
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261 | }
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262 |
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263 | sub login(@)
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264 | {
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265 | check_parameter( @_, 1 );
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266 | check_env();
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267 |
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268 | my $output_username = "";
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269 | if ($DASSCM_USERNAME) {
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270 | $output_username = " ($DASSCM_USERNAME)";
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271 | }
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272 |
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273 | print "Enter DASSCM user name", $output_username, ": ";
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274 | my $input_username = <STDIN>;
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275 | chomp($input_username);
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276 |
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277 | # hidden password input
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278 | print "Enter DASSCM user password: ";
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279 | ReadMode('noecho');
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280 | my $input_password = <STDIN>;
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281 | ReadMode('normal');
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282 | chomp($input_password);
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283 |
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284 | svn_check_credentials( $input_username, $input_password );
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285 |
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286 | #
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287 | # set environment variables
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288 | #
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289 | $ENV{'DASSCM_USERNAME'} = $input_username;
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290 | $ENV{'DASSCM_PASSWORD'} = $input_password;
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291 |
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292 | # TODO: print environment
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293 |
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294 | exec("bash") or die "can't login";
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295 | }
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296 |
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297 | sub init(@)
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298 | {
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299 | check_parameter( @_, 1 );
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300 | check_env();
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301 |
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302 | # update complete repository
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303 | my $retcode =
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304 | run_interactive(
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305 | "cd $DASSCM_LOCAL_REPOSITORY_BASE; $SVN checkout $svnCheckoutCredentials $svnOptions $DASSCM_SVN_REPOSITORY"
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306 | );
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307 | }
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308 |
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309 | #
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310 | # add (is used for command add and commit)
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311 | #
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312 | sub add(@)
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313 | {
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314 | check_parameter( @_, 1 );
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315 | check_env();
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316 |
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317 | (
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318 | my $basename,
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319 | my $dirname_prod,
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320 | my $dirname_repo,
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321 | my $filename_prod,
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322 | my $filename_repo
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323 | )
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324 | = get_filenames( $_[0] );
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325 |
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326 | if ( $command eq "add" ) {
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327 | mkpath($dirname_repo);
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328 | }
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329 |
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330 | # update complete repository
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331 | my $retcode = run_interactive("$SVN update $svnOptions $DASSCM_REPO");
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332 |
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333 | copy( $filename_prod, $filename_repo ) or die $!;
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334 |
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335 | if ( $command eq "add" ) {
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336 |
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337 | # already checked in?
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338 | chdir($DASSCM_REPO);
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339 |
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340 | # also add the path to filename.
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341 | for my $dir ( split( '/', $dirname_prod ) ) {
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342 | if ($dir) {
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343 | run_command("$SVN add --non-recursive $dir");
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344 | chdir $dir;
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345 | }
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346 | }
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347 | run_command("$SVN add $basename");
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348 | }
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349 |
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350 | if ( $options{'message'} ) {
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351 | $svnOptions .= " --message \"$options{'message'}\" ";
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352 | }
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353 |
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354 | # commit calls $EDITOR. uses "interactive" here, to display output
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355 | $retcode =
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356 | run_interactive(
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357 | "$SVN commit $svnOptions --username $DASSCM_USERNAME $svnPasswordCredentials $DASSCM_REPO"
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358 | );
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359 |
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360 | print $filename_prod. "\n";
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361 | print $dirname_repo. "\n";
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362 | }
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363 |
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364 | sub blame(@)
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365 | {
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366 | check_parameter( @_, 1 );
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367 | check_env();
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368 |
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369 | (
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370 | my $basename,
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371 | my $dirname_prod,
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372 | my $dirname_repo,
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373 | my $filename_prod,
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374 | my $filename_repo
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375 | )
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376 | = get_filenames( $_[0] );
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377 |
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378 | my $retcode = run_interactive("$SVN blame $svnOptions $filename_repo");
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379 | }
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380 |
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381 | sub diff(@)
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382 | {
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383 | check_parameter( @_, 1 );
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384 | check_env();
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385 |
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386 | (
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387 | my $basename,
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388 | my $dirname_prod,
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389 | my $dirname_repo,
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390 | my $filename_prod,
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391 | my $filename_repo
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392 | )
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393 | = get_filenames( $_[0] );
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394 |
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395 | #print "$basename,$dirname_prod,$dirname_repo\n";
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396 |
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397 | ( my $rc_update, my @result ) = run_command("$SVN update $filename_repo");
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398 | if ( $rc_update != 0 ) {
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399 | print @result;
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400 | die;
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401 | }
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402 |
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403 | ( my $rc_diff, my @diff ) =
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404 | run_command("diff $filename_repo $filename_prod");
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405 | print @diff;
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406 | }
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407 |
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408 | #####################################################################
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409 | #
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410 | # main
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411 | #
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412 |
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413 | my $number_arguments = @ARGV;
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414 |
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415 | if ( $number_arguments > 0 ) {
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416 |
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417 | # get subcommand and remove it from @ARGV
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418 | $command = $ARGV[0];
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419 | shift @ARGV;
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420 |
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421 | $DASSCM_LOCAL_REPOSITORY_BASE = $config->{'DASSCM_LOCAL_REPOSITORY_BASE'};
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422 | $DASSCM_REPOSITORY_NAME = $config->{'DASSCM_REPOSITORY_NAME'};
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423 |
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424 | # TODO: check variables
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425 | $DASSCM_SVN_REPOSITORY =
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426 | $config->{'DASSCM_SVN_REPOSITORY_BASE'} . "/" . $DASSCM_REPOSITORY_NAME;
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427 |
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428 | my $DASSCM_CHECKOUT_USERNAME = $config->{'DASSCM_CHECKOUT_USERNAME'};
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429 | my $DASSCM_CHECKOUT_PASSWORD = $config->{'DASSCM_CHECKOUT_PASSWORD'};
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430 |
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431 | #
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432 | # if a user is given by dasscm configuration file, we use it.
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433 | # Otherwise we expect that read-only account is configured
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434 | # as local subversion configuration.
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435 | # If this is also not the case,
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436 | # user is required to type username and password.
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437 | # This will be stored as local subversion configuration thereafter.
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438 | #
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439 | if ( $DASSCM_CHECKOUT_USERNAME && $DASSCM_CHECKOUT_PASSWORD ) {
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440 | $svnCheckoutCredentials =
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441 | " --username $DASSCM_CHECKOUT_USERNAME --password $DASSCM_CHECKOUT_PASSWORD ";
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442 | }
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443 |
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444 | # get command line options and store them in options hash
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445 | my $result = GetOptions( \%options, 'message=s' );
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446 |
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447 | # print options
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448 | foreach my $option ( keys %options ) {
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449 | print $option. ": " . $options{$option} . "\n";
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450 | }
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451 |
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452 | $_ = $command;
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453 | if (m/help/i) {
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454 | help(@ARGV);
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455 | } elsif (m/login/i) {
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456 | $command = "login";
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457 | login(@ARGV);
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458 | } elsif (m/init/i) {
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459 | $command = "init";
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460 | init(@ARGV);
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461 | } elsif (m/add/i) {
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462 | ## rewrite command
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463 | $command = "add";
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464 | add(@ARGV);
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465 | } elsif (m/commit/i) {
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466 | $command = "commit";
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467 | add(@ARGV);
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468 | } elsif (m/blame/i) {
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469 | $command = "blame";
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470 | blame(@ARGV);
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471 | } elsif (m/diff/i) {
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472 | $command = "diff";
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473 | diff(@ARGV);
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474 | } elsif (m/activate/i) {
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475 | ## TODO
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476 | activate(@ARGV);
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477 | } else {
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478 | usage();
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479 | check_env();
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480 | }
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481 |
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482 | # login
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483 | # up
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484 | # commitall
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485 | # revert
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486 | # status (chkconf)
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487 | }
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