Mercurial > ec-dotfiles
annotate bin/moefetch @ 298:a872c40368dd
Why .sh.
| author | Edho Arief <edho@myconan.net> | 
|---|---|
| date | Thu, 09 Feb 2012 08:30:09 +0700 | 
| parents | bin/moefetch.sh@d7e5a2e70cf3 | 
| children | d5ac851f3225 | 
| rev | line source | 
|---|---|
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changeset | 1 #!/bin/sh | 
| 148 | 2 | 
| 3 # Copyright (c) 2009, edogawaconan <me@myconan.net> | |
| 4 # | |
| 5 # Permission to use, copy, modify, and/or distribute this software for any | |
| 6 # purpose with or without fee is hereby granted, provided that the above | |
| 7 # copyright notice and this permission notice appear in all copies. | |
| 8 # | |
| 9 # THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES | |
| 10 # WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF | |
| 11 # MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR | |
| 12 # ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES | |
| 13 # WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN | |
| 14 # ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF | |
| 15 # OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. | |
| 159 | 16 # | 
| 17 # Lots of bugs here. Use with care | |
| 148 | 18 # USE WITH CARE | 
| 159 | 19 # | 
| 20 # what it does: fetch every picture that has the specified TAGS. | |
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changeset | 21 # requirement: wget, libxslt, openssl | 
| 148 | 22 | 
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changeset | 23 # program additional paths for: cut, sed, wc, openssl, wget, xsltproc, grep | 
| 159 | 24 ADDITIONAL_PATH= | 
| 148 | 25 | 
| 159 | 26 # default server address. Danbooru only! I do not take responsibility of stupidity. | 
| 27 DEFAULT_SITE="moe.imouto.org" | |
| 148 | 28 | 
| 29 # 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. | |
| 159 | 30 # Structure is ${BASE_DIR}/<TAGS> | 
| 31 # Absolute path only. | |
| 32 # Leave empty to use whatever folder you're running this at | |
| 193 | 33 BASE_DIR= | 
| 148 | 34 | 
| 35 # not user modifiable from here | |
| 36 | |
| 159 | 37 # useless welcome message. Also version | 
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changeset | 38 msg_welcome() { | 
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changeset | 39 echo "moefetch ${_version} | 
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changeset | 40 Copyright (c) 2009 edogawaconan <me@myconan.net> | 
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changeset | 41 " | 
| 159 | 42 } | 
| 43 | |
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changeset | 44 # Sanitize path. Totally safe. Usage: cmd "$(safe_path "${filename}")" | 
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changeset | 45 safe_path() | 
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changeset | 46 { | 
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changeset | 47 # It all depends on the first character. | 
| 232 | 48 start=$(printf "%s" "$*" | cut -c 1) | 
| 49 path= | |
| 50 case "${start}" in | |
| 51 .|/) path="$*";; # . and / is safe. No change. | |
| 52 *) path="./$*";; # Anything else must be prefixed with ./ | |
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changeset | 53 esac | 
| 232 | 54 printf "%s" "${path}" # Return. | 
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changeset | 55 } | 
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changeset | 56 | 
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changeset | 57 # Checks md5. OpenSSL should be available on anything usable. | 
| 230 | 58 get_md5() { cat "$(safe_path "${1}")" | openssl dgst -md5 | tail -n 1 | sed -e 's/.*\([[:xdigit:]]\{32\}\).*/\1/'; } | 
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changeset | 59 | 
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changeset | 60 # Safely get basename. | 
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changeset | 61 get_basename() { basename "$(safe_path "${1}")"; } | 
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changeset | 62 | 
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changeset | 63 # Safely get filename (basename without the extension). | 
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changeset | 64 get_filename() { get_basename "${1%.*}"; } | 
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changeset | 65 | 
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changeset | 66 # Transformation for tag url. | 
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changeset | 67 get_cleantags() { printf "%s " "$*" | sed -e 's/\&/%26/g;s/=/%3D/g'; } | 
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changeset | 68 | 
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changeset | 69 # Returns something if not an md5 value. | 
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changeset | 70 is_not_md5() { get_filename "$1" | sed -e 's/\([0-9a-f]\{32\}\)//g'; } | 
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changeset | 71 | 
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changeset | 72 | 
| 159 | 73 # fatal error handler | 
| 74 Err_Fatal() { | |
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changeset | 75 echo " | 
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changeset | 76 Fatal error: ${1}" | 
| 159 | 77 exit 1 | 
| 78 } | |
| 79 | |
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changeset | 80 Err_Impossible() { | 
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changeset | 81 echo " | 
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changeset | 82 Impossible error. Or you modified content of the working directories when the script is running. | 
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changeset | 83 Please report to moefetch.googlecode.com if you see this message (complete with entire run log)" | 
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changeset | 84 exit 1 | 
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changeset | 85 } | 
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changeset | 86 | 
| 159 | 87 # help message | 
| 88 Err_Help() { | |
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changeset | 89 echo "moefetch.sh COMMAND [-n] [-p PASSWORD] [-s SITE_URL] [-u USERNAME] TAGS | 
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changeset | 90 | 
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changeset | 91 COMMAND: | 
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changeset | 92 (quick)fetch: | 
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changeset | 93 Do a complete update. Add prefix quick to skip file checking | 
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changeset | 94 check: | 
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changeset | 95 Get list of new files, clean up local folder and print total new files | 
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changeset | 96 | 
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changeset | 97 OPTIONS: | 
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changeset | 98 -n: | 
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changeset | 99 Skip checking repository directory. | 
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changeset | 100 -p PASSWORD: | 
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changeset | 101 Specifies password for login. | 
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changeset | 102 -s SITE_URL: | 
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changeset | 103 Specify URL of the Danbooru powered site you want to leech from. Default is ${DEFAULT_SITE}. | 
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changeset | 104 -u USERNAME: | 
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changeset | 105 Specifies username for login. | 
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changeset | 106 TAGS: | 
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changeset | 107 Tags you want to download. Separated by spaces. Tag name follows standard Danbooru tagging scheme." | 
| 193 | 108 exit 2 | 
| 159 | 109 } | 
| 110 | |
| 111 # generate link by transforming xml | |
| 112 Generate_Link() { | |
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changeset | 113 echo " | 
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changeset | 114 Fetching XML file" | 
| 232 | 115 tempnum=1000 | 
| 116 iternum=1 | |
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changeset | 117 > "${TEMP_PREFIX}-list" | 
| 232 | 118 while [ "${tempnum}" -ge 1000 ]; do | 
| 119 url="http://${SITE}/post/index.xml?tags=$(get_cleantags "${TAGS}")&offset=0&limit=1000&page=${iternum}" | |
| 120 [ ${_use_login} -eq 1 ] && url="${url}&login=${LOGIN_USER}&password_hash=${LOGIN_PASS}" | |
| 121 wget --quiet "${url}" -O "${TEMP_PREFIX}-xml" -e continue=off || Err_Fatal "Failed download catalog file" | |
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changeset | 122 printf "Processing XML file... " | 
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changeset | 123 # xslt evilry | 
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changeset | 124 xsltproc - "${TEMP_PREFIX}-xml" <<EOF | sed 's/.*\(http.*\)\(\/[a-f0-9]\{32\}\).*\.\([^\.]*\)/\1\2.\3/g' | grep ^http > "${TEMP_PREFIX}-templist" | 
| 148 | 125 <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0"> | 
| 126 <xsl:output method="xml" indent="yes"/> | |
| 127 <xsl:template match="post"> | |
| 128 <xsl:value-of select="@file_url" /> | |
| 129 </xsl:template> | |
| 130 </xsl:stylesheet> | |
| 131 EOF | |
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changeset | 132 tempnum=$(grep -c . "${TEMP_PREFIX}-templist") | 
| 232 | 133 iternum=$((iternum + 1)) | 
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changeset | 134 cat "${TEMP_PREFIX}-templist" >> "${TEMP_PREFIX}-list" | 
| 232 | 135 echo "${tempnum} file(s) available" | 
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changeset | 136 done | 
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changeset | 137 numfiles=$(grep -c . "${TEMP_PREFIX}-list") | 
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changeset | 138 echo "${numfiles} file(s) available on server" | 
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changeset | 139 [ "${numfiles}" -gt 0 ] || Err_Fatal "Error in processing list or no files can be found with specified tag(s) or site." | 
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changeset | 140 } | 
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changeset | 141 | 
| 148 | 142 | 
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changeset | 143 progress_init() { | 
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changeset | 144 _last="-" | 
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changeset | 145 printf "${_last}" | 
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changeset | 146 } | 
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changeset | 147 | 
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changeset | 148 progress_anim() { | 
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changeset | 149 case "${_last}" in | 
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changeset | 150 /) _last="-";; | 
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changeset | 151 -) _last=\\;; | 
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changeset | 152 \\) _last=\|;; | 
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changeset | 153 \|) _last="/";; | 
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changeset | 154 esac | 
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changeset | 155 printf "\b${_last}" | 
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changeset | 156 } | 
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changeset | 157 | 
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changeset | 158 progress_done() { printf "\bdone\n"; } | 
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changeset | 159 | 
| 200 | 160 # getting rid of ls (as per suggestion) | 
| 161 Count_Files() { | |
| 224 | 162 numfiles=0 | 
| 163 for dircontent in "${*}/"* "${*}/".*; do | |
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changeset | 164 if [ -e "${dircontent}" ] && [ x"${dircontent}" != x"${*}/." ] && [ x"${dircontent}" != x"${*}/.." ]; then | 
| 230 | 165 numfiles=$((numfiles + 1)) | 
| 200 | 166 fi | 
| 167 done | |
| 230 | 168 echo $((numfiles - 2)) | 
| 200 | 169 } | 
| 170 | |
| 159 | 171 # check tools availability | 
| 172 Check_Tools() { | |
| 173 # verify all programs required do indeed exist | |
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changeset | 174 commands="cut sed wc wget xsltproc xargs rm mkdir chown comm grep date openssl" | 
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changeset | 175 for cmd in ${commands} | 
| 159 | 176 do | 
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changeset | 177 [ "$(command -v "${cmd}")" ] || Err_Fatal "${cmd} doesn't exist in ${PATH}" | 
| 159 | 178 done | 
| 179 } | |
| 180 | |
| 181 # verify required folders exist and writeable | |
| 182 Check_Folders(){ | |
| 223 | 183 [ -O "${BASE_DIR}" ] || Err_Fatal "You don't own ${BASE_DIR}. Please fix ${BASE_DIR} or run this script in your own directory." | 
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changeset | 184 for directory in temp trash deleted "${SITE_DIR}/${TARGET_DIR}"; do | 
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changeset | 185 if [ ! -d "${BASE_DIR}/${directory}" ]; then | 
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changeset | 186 mkdir -p "${BASE_DIR}/${directory}" || Err_Impossible | 
| 159 | 187 fi | 
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changeset | 188 if [ ! -O "${BASE_DIR}/${directory}" ]; then | 
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changeset | 189 echo "You don't own the ${BASE_DIR}/${directory}, applying globally writeable permission on it" | 
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changeset | 190 chmod -R u=rwX,g=rwX,o=rwX "${BASE_DIR}/${directory}" || Err_Impossible | 
| 159 | 191 fi | 
| 192 done | |
| 223 | 193 [ "$(Count_Files "${BASE_DIR}/${SITE_DIR}/${TARGET_DIR}")" -eq 0 ] && ISNEW=1 | 
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changeset | 194 for i in error ok list newlist templist; do | 
| 196 | 195 touch "${TEMP_PREFIX}-${i}" || Fatal_Err "Error creating ${TEMP_PREFIX}-${i}. This shouldn't happen" | 
| 159 | 196 done | 
| 197 # | |
| 198 } | |
| 199 | |
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changeset | 200 # Do some cleanup | 
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changeset | 201 Cleanup_Repository() { | 
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changeset | 202 # current dir: ${BASE_DIR}/${SITE_DIR}/${TARGET_DIR} | 
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changeset | 203 printf "Cleaning up repository folder... " | 
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changeset | 204 progress_init | 
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changeset | 205 trash_dir="${BASE_DIR}/trash/${trash_dir}/$(date -u "+${SITE_DIR}-${TARGET_DIR}-%Y%m%d-%H.%M")" | 
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changeset | 206 trashes="These files have been moved to ${trash_dir}:" | 
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changeset | 207 has_trash= | 
| 223 | 208 if [ ! -d "${trash_dir}" ]; then | 
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changeset | 209 mkdir -p "${trash_dir}" || Err_Impossible | 
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changeset | 210 else | 
| 223 | 211 if [ ! -O "${trash_dir}" ]; then | 
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changeset | 212 chmod -R u=rwX,g=rwX,o=rwX "${BASE_DIR}/${directory}" || Err_Impossible | 
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changeset | 213 fi | 
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changeset | 214 fi | 
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changeset | 215 for trash in "${BASE_DIR}/${SITE_DIR}/${TARGET_DIR}/"* | 
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changeset | 216 do | 
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changeset | 217 is_trash= | 
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changeset | 218 if [ -d "${trash}" ] || [ -n "$(is_not_md5 "${trash}")" ] || [ -z "$(grep "$(get_basename "${trash}")" "${TEMP_PREFIX}-list")" ]; then | 
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changeset | 219 is_trash=1 | 
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changeset | 220 has_trash=1 | 
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changeset | 221 mv -f -- "${trash}" "${trash_dir}" || Err_Impossible | 
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changeset | 222 trashes="${trashes} | 
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changeset | 223 $(get_basename "${trash}")" | 
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changeset | 224 fi | 
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changeset | 225 progress_anim | 
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changeset | 226 done | 
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changeset | 227 rmdir "${trash_dir}" 2>/dev/null | 
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changeset | 228 progress_done | 
| 223 | 229 [ -n "${has_trash}" ] && echo "${trashes}" | 
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changeset | 230 } | 
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changeset | 231 | 
| 159 | 232 # check files correctness | 
| 233 Check_Files() { | |
| 223 | 234 if [ ! -n "${ISNEW}" ]; then | 
| 235 [ -z "${NOCLEAN}" ] && Cleanup_Repository | |
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changeset | 236 printf "Checking for errors... " | 
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changeset | 237 progress_init | 
| 232 | 238 files_error="These files do not match its md5:" | 
| 239 files_notdanbooru="These files are not checked:" | |
| 240 has_err_filename= | |
| 241 has_err_md5= | |
| 196 | 242 > "${TEMP_PREFIX}-error" | 
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changeset | 243 > "${TEMP_PREFIX}-ok" | 
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changeset | 244 for file in "${BASE_DIR}/${SITE_DIR}/${TARGET_DIR}/"* | 
| 159 | 245 do | 
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changeset | 246 if [ -e "${file}" ]; then | 
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changeset | 247 if [ -n "$(is_not_md5 "${file}")" ] || [ -d "${file}" ]; then | 
| 232 | 248 files_notdanbooru="${files_notdanbooru} | 
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changeset | 249 $(get_basename "${file}")" | 
| 232 | 250 has_err_filename=1 | 
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changeset | 251 else | 
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changeset | 252 if [ "$(get_md5 "${file}")" = "$(get_filename "${file}")" ]; then | 
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changeset | 253 echo "$(get_basename "${file}")" >> "${TEMP_PREFIX}-ok" | 
| 217 | 254 else | 
| 255 rm "${file}" || Err_Fatal "Error removing ${file}" | |
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changeset | 256 echo "$(get_basename "${file}")" >> "${TEMP_PREFIX}-error" | 
| 232 | 257 files_error="${files_error} | 
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changeset | 258 $(get_basename "${file}")" | 
| 232 | 259 has_err_md5=1 | 
| 217 | 260 fi | 
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changeset | 261 fi | 
| 148 | 262 fi | 
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changeset | 263 progress_anim | 
| 148 | 264 done | 
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changeset | 265 progress_done | 
| 232 | 266 if [ ! -n "${has_err_md5}" ] && [ ! -n "${has_err_filename}" ]; then | 
| 203 | 267 echo "All files OK" | 
| 170 | 268 else | 
| 232 | 269 if [ -n "${has_err_md5}" ]; then | 
| 270 echo "${files_error}" | |
| 235 
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changeset | 271 echo "$(grep -c . "${TEMP_PREFIX}-error") file(s) removed" | 
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changeset | 272 fi | 
| 232 | 273 [ -n "${has_err_filename}" ] && echo "${files_notdanbooru}" | 
| 170 | 274 fi | 
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changeset | 275 echo "$(grep -c . "${TEMP_PREFIX}-ok") file(s) available locally" | 
| 148 | 276 | 
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changeset | 277 printf "Generating list of new files... " | 
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changeset | 278 progress_init | 
| 218 | 279 cp -f "${TEMP_PREFIX}-list" "${TEMP_PREFIX}-templist" | 
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changeset | 280 while read -r is_ok; do | 
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changeset | 281 grep -v "${is_ok}" "${TEMP_PREFIX}-templist" > "${TEMP_PREFIX}-newlist" | 
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changeset | 282 cp -f "${TEMP_PREFIX}-newlist" "${TEMP_PREFIX}-templist" || Err_Impossible | 
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changeset | 283 progress_anim | 
| 203 | 284 done < "${TEMP_PREFIX}-ok" | 
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changeset | 285 progress_done | 
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changeset | 286 echo "$(grep -c . "${TEMP_PREFIX}-newlist") file(s) to be downloaded" | 
| 148 | 287 else | 
| 223 | 288 if [ -n "${ISQUICK}" ]; then | 
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changeset | 289 echo "Quick mode selected. Skipping check" | 
| 152 | 290 else | 
| 291 echo "Empty local repository" | |
| 292 fi | |
| 200 | 293 cat "${TEMP_PREFIX}-list" > "${TEMP_PREFIX}-newlist" | 
| 148 | 294 fi | 
| 295 } | |
| 296 | |
| 159 | 297 # start downloading the images | 
| 298 Fetch_Images() { | |
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changeset | 299 if [ "$(grep -c . "${TEMP_PREFIX}-newlist")" -eq 0 ]; then | 
| 148 | 300 echo "No new file" | 
| 301 else | |
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changeset | 302 printf "Downloading files... " | 
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changeset | 303 cd "${BASE_DIR}/${SITE_DIR}/${TARGET_DIR}" | 
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changeset | 304 wget -e continue=on -i "${TEMP_PREFIX}-newlist" -o "${TEMP_PREFIX}.log" | 
| 148 | 305 fi | 
| 306 } | |
| 307 | |
| 159 | 308 # initialize base variables and initial command check | 
| 227 | 309 init() | 
| 310 { | |
| 159 | 311 # path initialization | 
| 227 | 312 # check if additional path is specified | 
| 313 if [ -n "${ADDITIONAL_PATH}" ] | |
| 314 then | |
| 315 # insert the additional path | |
| 316 PATH="${ADDITIONAL_PATH}:${PATH}" | |
| 317 export PATH | |
| 318 fi | |
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changeset | 319 | 
| 159 | 320 # misc variables | 
| 166 | 321 ISQUICK= | 
| 322 ISNEW= | |
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changeset | 323 | 
| 227 | 324 # minimum number of arguments: 2 (command and tag). If less than two, exit and print help message | 
| 159 | 325 [ $# -lt 2 ] && Err_Help | 
| 326 case "$1" in | |
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changeset | 327 check|fetch|quickfetch) | 
| 159 | 328 echo "Starting..." | 
| 329 JOB="$1" | |
| 330 ;; | |
| 331 *) | |
| 332 Err_Help | |
| 333 ;; | |
| 334 esac | |
| 335 shift | |
| 230 | 336 SITE= | 
| 337 TAGS= | |
| 232 | 338 has_pass=0 | 
| 339 has_user=0 | |
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changeset | 340 x=1 | 
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changeset | 341 while getopts "s:nu:p:" opt | 
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changeset | 342 do | 
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changeset | 343 case "$opt" in | 
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changeset | 344 s) SITE="$OPTARG";; | 
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changeset | 345 n) NOCLEAN=1;; | 
| 227 | 346 p) | 
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changeset | 347 LOGIN_PASS=$(printf "%s" "$OPTARG" | openssl dgst -sha1 | sed -e 's/.*\([[:xdigit:]]\{40\}\).*/\1/') | 
| 232 | 348 has_pass=1 | 
| 227 | 349 ;; | 
| 350 u) | |
| 351 LOGIN_USER="$OPTARG" | |
| 232 | 352 has_user=1 | 
| 227 | 353 ;; | 
| 185 
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changeset | 354 esac | 
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changeset | 355 x=$OPTIND | 
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changeset | 356 done | 
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changeset | 357 shift $(($x-1)) | 
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changeset | 358 if [ "$1" = -- ]; then shift; fi | 
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changeset | 359 TAGS="$@" | 
| 223 | 360 [ -n "${SITE}" ] || SITE=${DEFAULT_SITE} | 
| 361 [ -n "${TAGS}" ] || Err_Fatal "No tag specified" | |
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changeset | 362 # Get base folder - default, current folder or fallback to ${HOME} | 
| 223 | 363 [ -n "${BASE_DIR}" ] || BASE_DIR=${PWD} | 
| 364 [ -n "${BASE_DIR}" ] || BASE_DIR=${HOME} | |
| 227 | 365 [ -n "$(echo "${BASE_DIR}" | cut -c1 | grep \/)" ] || BASE_DIR="/${BASE_DIR}" | 
| 366 # see if both pass and use are set. If they're set, switch _use_login variable content to 1. | |
| 232 | 367 [ ${has_pass} -eq 1 -a ${has_user} -eq 1 ] && _use_login=1 | 
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changeset | 368 | 
| 159 | 369 echo "Tags: ${TAGS}" | 
| 370 # slash is not wanted for folder name | |
| 193 | 371 TARGET_DIR=$(echo "${TAGS}" | sed -e 's/\//_/g') | 
| 372 SITE_DIR=$(echo "${SITE}" | sed -e 's/\/$//g;s/\//_/g') | |
| 195 
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changeset | 373 TEMP_PREFIX="${BASE_DIR}/temp/${SITE_DIR}-${TARGET_DIR}" | 
| 159 | 374 } | 
| 148 | 375 | 
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changeset | 376 # global variables goes here | 
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changeset | 377 init_globals() | 
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changeset | 378 { | 
| 232 | 379 _version="1.0-rc2" # version of this script | 
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changeset | 380 _use_login=0 # variable to check whether a login is used or not | 
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changeset | 381 } | 
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changeset | 382 | 
| 227 | 383 main() | 
| 384 { | |
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changeset | 385 # removing GNU-ism as much as possible | 
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changeset | 386 POSIXLY_CORRECT=1 | 
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changeset | 387 #initialize global variables | 
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changeset | 388 init_globals | 
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changeset | 389 #print welcome message | 
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changeset | 390 msg_welcome | 
| 227 | 391 # initialization | 
| 392 init "$@" | |
| 393 Check_Tools | |
| 394 Check_Folders | |
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changeset | 395 | 
| 148 | 396 | 
| 227 | 397 # let's do the job! | 
| 398 case "${JOB}" in | |
| 399 check) | |
| 400 Generate_Link | |
| 401 Check_Files | |
| 402 ;; | |
| 403 fetch) | |
| 404 Generate_Link | |
| 405 Check_Files | |
| 406 Fetch_Images | |
| 407 ;; | |
| 408 quickfetch) | |
| 409 ISNEW=1 | |
| 410 ISQUICK=1 | |
| 411 Generate_Link | |
| 412 Check_Files | |
| 413 Fetch_Images | |
| 414 ;; | |
| 415 esac | |
| 416 } | |
| 417 | |
| 418 # call the main routine! | |
| 419 main "$@" | |
| 420 | 
