annotate moefetch.sh @ 175:5b7a154dbd21

cosmetics fix for help message
author edhoprima@gmail.com <edhoprima@gmail.com>
date Fri, 05 Jun 2009 20:26:14 +0000
parents 0948e76a57a1
children 3d2ae9417273
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1 #!/bin/sh
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2
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3 # Copyright (c) 2009, edogawaconan <me@myconan.net>
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4 #
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5 # Permission to use, copy, modify, and/or distribute this software for any
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6 # purpose with or without fee is hereby granted, provided that the above
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7 # copyright notice and this permission notice appear in all copies.
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8 #
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9 # THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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10 # WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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11 # MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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12 # ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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13 # WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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14 # ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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15 # OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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16 #
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17 # Lots of bugs here. Use with care
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18 # USE WITH CARE
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19 #
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20 # what it does: fetch every picture that has the specified TAGS.
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21 # requirement: wget, libxslt, md5sum (or md5)
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22
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23 # program additional paths for: cut, sed, wc, MD5(sum), wget, xsltproc, grep
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24 ADDITIONAL_PATH=
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25
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26 # custom md5 path with arguments, expected output: <32digit md5><space(s)><filename>
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27 # Leave empty for "md5sum" (Linux, Solaris), "md5 -r" (*BSD)
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28 MD5=
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29
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30 # default server address. Danbooru only! I do not take responsibility of stupidity.
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31 DEFAULT_SITE="moe.imouto.org"
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32
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33 # base directory. make sure it's writeable. I do not take responsibility if you don't own the folder and files as no check is done for this one.
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34 # Structure is ${BASE_DIR}/<TAGS>
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35 # Absolute path only.
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36 # Leave empty to use whatever folder you're running this at
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37 BASE_DIR=""
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38
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39 # not user modifiable from here
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40
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41 # useless welcome message. Also version
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42 Msg_Welcome() {
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43 MOEFETCHVERSION="0.1-beta2"
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44 cat <<EOF
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45 moefetch ${MOEFETCHVERSION}
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46 Copyright (c) 2009 edogawaconan <me@myconan.net>
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47
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48 EOF
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49 }
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50
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51 # fatal error handler
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52 Err_Fatal() {
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53 echo "Fatal error: ${1}"
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54 exit 1
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55 }
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56
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57 # help message
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58 Err_Help() {
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59 cat <<EOF
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60 moefetch.sh COMMAND [-u SITE_URL] TAGS
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61
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62 COMMAND:
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63 (quick)fetch: do a complete update. Add prefix quick to skip file checking
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64 check: get list of new files, clean up local folder and print total new files
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65
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66 -u SITE_URL:
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67 Specify URL of the Danbooru powered site you want to leech from. Default is ${DEFAULT_SITE}
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68
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69 TAGS:
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70 Tags you want to download. Separated by spaces. Tag name follows standard Danbooru tagging scheme
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71
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72 EOF
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73 exit 0
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74 }
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75
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76 # generate link by transforming xml
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77 Generate_Link() {
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78 cd "${BASE_DIR}/temp"
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79 echo
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80 echo "Fetching xml file"
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81 wget "http://${SITE}/post/index.xml?tags=${TAGS}&offset=0&limit=100000" -O "${SITE_DIR}-${TARGET_DIR}-xml" -e continue=off
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82 echo "Processing XML file..."
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83 # xslt evilry
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84 xsltproc - "${SITE_DIR}-${TARGET_DIR}-xml" <<EOF | sed 's/.*\(http.*\)\(\/[a-f0-9]\{32\}\).*\.\([jp][pn]g\)/\1\2.\3/g' | grep ^http > "${SITE_DIR}-${TARGET_DIR}-list"
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85 <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
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86 <xsl:output method="xml" indent="yes"/>
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87 <xsl:template match="post">
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88 <xsl:value-of select="@file_url" />
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89 </xsl:template>
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90 </xsl:stylesheet>
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91 EOF
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92 echo "`echo \`wc -l < \"${SITE_DIR}-${TARGET_DIR}-list\" \`` file(s) available on server"
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93 #output file: ${TARGET_DIR}-list
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94 }
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95
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96 # check tools availability
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97 Check_Tools() {
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98 # verify all programs required do indeed exist
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99 #MD5
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100 if [ ! "${MD5}" ]; then
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101 case `uname` in
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102 *BSD) MD5="md5 -r";;
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103 Linux|SunOS) MD5="md5sum";;
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104 *) Fatal_Err "No known md5 tool for this platform. Please specify manually"
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105 esac
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106 fi
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107 MD5_COMMAND=`echo ${MD5} | cut -d' ' -f1`
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108 # basic tools
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109 COMMANDS="cut sed wc wget xsltproc xargs rm mkdir chown comm grep ${MD5_COMMAND}"
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110 for COMMAND in ${COMMANDS}
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111 do
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112 COMMAND_CHECK=`command -v "${COMMAND}"`
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113 [ "${COMMAND_CHECK}" ] || Err_Fatal "${COMMAND} doesn't exist in ${PATH}"
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114 done
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115
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116 # grep checking
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117 # originally created for workaround on solaris
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118 #if [ `uname` = "SunOS" ]; then
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119 FAIL=""
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120 echo "blah" > superrandomtestfile
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121 echo "blah" > superrandomtestfile.2
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122 grep -f superrandomtestfile.2 superrandomtestfile > /dev/null 2>&1 || FAIL=1
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123 rm -f superrandomtestfile superrandomtestfile.2
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124 [ "${FAIL}" ] && Err_Fatal "Your grep is not compatible. Please install or set path of correct grep"
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125 }
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126
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127 # verify required folders exist and writeable
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128 Check_Folders(){
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129 [ -O "${BASE_DIR}" ] || Err_Fatal "You don't own ${BASE_DIR}. Please fix ${BASE_DIR}."
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130 for FOLDER in temp trash deleted ${SITE_DIR}/${TARGET_DIR}
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131 do
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132 if [ ! -d "${BASE_DIR}/${FOLDER}" ]; then
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133 mkdir "${BASE_DIR}/${FOLDER}" || Err_Fatal "${FOLDER} folder creation failed"
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134 fi
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135 if [ ! -O "${BASE_DIR}/${FOLDER}" ]; then
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136 echo "You don't own the ${BASE_DIR}/${FOLDER}, applying globally writeable permission on it"
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137 chmod -R u=rwX,g=rwX,o=rwX "${BASE_DIR}/${FOLDER}" || Err_Fatal "Error changing ownership. This shouldn't happen"
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138 fi
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139 done
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140 [ `echo \`ls "${BASE_DIR}/${SITE_DIR}/${TARGET_DIR}" | wc -l\`` -eq 0 ] && ISNEW=1
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141 # let's move to workdir
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142 cd "${BASE_DIR}/temp"
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143 for i in error ok list newlist; do
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144 touch "${SITE_DIR}-${TARGET_DIR}-${i}" || Fatal_Err "Error creating ${TARGET_DIR}-${i}. This shouldn't happen"
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145 done
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146 #
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147 }
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148
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149 # check files correctness
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150 Check_Files() {
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151 if [ ! "${ISNEW}" ]; then
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152 echo "Checking for errors..."
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153 # THE FILES
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154
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155 # current dir: ${BASE_DIR}/${SITE_DIR}/${TARGET_DIR}
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156 cd "${BASE_DIR}/${SITE_DIR}/${TARGET_DIR}"
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157 TRASH_DIR="${SITE_DIR}-${TARGET_DIR}-`date -u +%Y%m%d-%H.%M`"
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158 mkdir -p "${BASE_DIR}/trash/${TRASH_DIR}"
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159 for TRASH in `ls | sed -e 's/\([0-9a-f]\{32\}.*\)//g' | grep -v ^$`
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160 do
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161 mv -f "${TRASH}" "${BASE_DIR}/trash/${TRASH_DIR}" || Err_Fatal "Error deleting files"
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162 echo "Moved ${TRASH} to ${BASE_DIR}/trash/${TRASH_DIR}"
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163 done
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164 [ "`ls "${BASE_DIR}/trash/${TRASH_DIR}"`" ] || rmdir "${BASE_DIR}/trash/${TRASH_DIR}"
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165 printf "" > "${BASE_DIR}/temp/${SITE_DIR}-${TARGET_DIR}-error"
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166 for FILE in *
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167 do
170
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168 if [ "`${MD5} "${FILE}" | cut -d ' ' -f1 -`" != "`echo "${FILE}" | cut -d '.' -f1`" ]
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169 then
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170 echo
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171 echo "${FILE}" >> "${BASE_DIR}/temp/${SITE_DIR}-${TARGET_DIR}-error"
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172 echo "Error: ${FILE}"
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173 fi
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174 printf "."
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175 done
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176 echo
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177
170
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178 # back to target dir
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179 cd "${BASE_DIR}/${SITE_DIR}/${TARGET_DIR}"
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180
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181 echo "Removing error files"
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182 if [ "${TOTAL_ERROR}" -eq 0 ]; then
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183 echo "No error file. 0 file removed"
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184 else
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185 cat "${BASE_DIR}/temp/${SITE_DIR}-${TARGET_DIR}-error" | xargs rm
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186 echo "${TOTAL_ERROR} file(s) removed"
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187 fi
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188 echo "`echo \`ls | wc -l\`` file(s) available locally"
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189
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190 # current dir: ${BASE_DIR}/temp
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191 cd ${BASE_DIR}/temp
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192 TOTAL_ERROR=`echo \`wc -l < "${SITE_DIR}-${TARGET_DIR}-error"\``
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193 echo "${TOTAL_ERROR} file(s) error"
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194
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195 echo "Generating list of new files..."
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196 # THE FILES
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197 #ls "../${TARGET_DIR}" | grep -vf "${TARGET_DIR}-error" > "${TARGET_DIR}-ok"
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198 #
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199 ls "${BASE_DIR}/${SITE_DIR}/${TARGET_DIR}" | comm -1 -3 "${SITE_DIR}-${TARGET_DIR}-error" - > "${SITE_DIR}-${TARGET_DIR}-ok"
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200 cat "${SITE_DIR}-${TARGET_DIR}-list" | grep -vf "${SITE_DIR}-${TARGET_DIR}-ok" > "${SITE_DIR}-${TARGET_DIR}-newlist"
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201 echo "`echo \`wc -l < \"${SITE_DIR}-${TARGET_DIR}-newlist\"\`` file(s) to be downloaded"
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202
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203 else
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204 if [ "${ISQUICK}" ]; then
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205 echo "quick mode selected. Skipping check"
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206 else
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207 echo "Empty local repository"
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208 fi
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209 cd "${BASE_DIR}/temp"
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210 cat "${SITE_DIR}-${TARGET_DIR}-list" > "${SITE_DIR}-${TARGET_DIR}-newlist"
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211 fi
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212 }
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213
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214 # start downloading the images
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215 Fetch_Images() {
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216 cd "${BASE_DIR}/temp"
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217 if [ `echo \`wc -l < "${SITE_DIR}-${TARGET_DIR}-newlist"\`` -eq 0 ]; then
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218 echo "No new file"
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219 else
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220 echo "Starting wget"
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221 cd "${BASE_DIR}/${SITE_DIR}/${TARGET_DIR}"
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222 wget -e continue=on -bi "${BASE_DIR}/temp/${SITE_DIR}-${TARGET_DIR}-newlist" -o "${BASE_DIR}/temp/${SITE_DIR}-${TARGET_DIR}.log"
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223 fi
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224 }
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225
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226 # initialize base variables and initial command check
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227 Init(){
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228 # Get base folder - current folder or fallback to ${HOME}
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229 [ "${BASE_DIR}" ] || BASE_DIR="${PWD}"
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230 [ "${BASE_DIR}" ] || BASE_DIR="{$HOME}"
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231 [ "`echo ${BASE_DIR} | cut -c1 | grep \/`" ] || BASE_DIR="/${BASE_DIR}"
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232 # path initialization
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233 [ "${ADDITIONAL_PATH}" ] && PATH=${ADDITIONAL_PATH}:${PATH}
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234 export PATH
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235
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236 # misc variables
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237 ISQUICK=
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238 ISNEW=
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239
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240 [ $# -lt 2 ] && Err_Help
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241 case "$1" in
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242 check|fetch|quickfetch)
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243 echo "Starting..."
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244 JOB="$1"
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245 ;;
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246 *)
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247 Err_Help
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248 ;;
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249 esac
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250 shift
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251 SITE=
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252 case "$1" in
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253 -s|--site)
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254 shift
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255 SITE="$1"
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256 shift
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257 ;;
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258 *)
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259 SITE="${DEFAULT_SITE}"
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260 ;;
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261 esac
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262 TAGS="$@"
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263 echo "Tags: ${TAGS}"
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264 # slash is not wanted for folder name
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265 TARGET_DIR="`echo "${TAGS}" | sed -e 's/\//_/g'`"
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266 SITE_DIR="`echo "${SITE}" | sed -e 's/\/$//g;s/\//_/g'`"
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267 }
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268
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269 Msg_Welcome
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270 Init "$@"
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271 Check_Tools
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272 Check_Folders
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273
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274
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275 # let's do the job!
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276 case "${JOB}" in
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277 check)
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278 Generate_Link
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279 Check_Files
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280 ;;
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281 fetch)
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282 Generate_Link
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283 Check_Files
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284 Fetch_Images
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285 ;;
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286 quickfetch)
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287 ISNEW=1
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288 ISQUICK=1
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289 Generate_Link
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290 Check_Files
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291 Fetch_Images
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292 ;;
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293 esac