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1 #!/bin/sh
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al@840
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2 # TazPkg - Tiny autonomous zone packages manager, hg.slitaz.org/tazpkg
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3 # remove - TazPkg module
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4 # Remove packages
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5
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6
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7 # Connect function libraries
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8 . /lib/libtaz.sh
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9
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10 # Get TazPkg working environment
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11 . @@MODULES@@/getenv
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12
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13
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14
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15
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16 # Log activity
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17
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18 log_pkg() {
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19 [ -w "$LOG" ] &&
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20 echo "$(date +'%F %T') - $1 - $PACKAGE ($VERSION$EXTRAVERSION)" >> "$LOG"
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21 }
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22
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23
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24 # Interactive mode
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25
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26 im() { tty -s; }
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27
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28
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29 # Block of receipt function callers
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30 # Why? "Bad" receipt sourcing can redefine some vital TazPkg variables.
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31 # Few receipts function should be patched now.
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32
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33 # Input: $1 = path to the receipt to be processed
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34
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35 call_pre_remove() {
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36 local tmp
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37 if grep -q '^pre_remove()' "$1"; then
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38 action 'Execute pre-remove commands...'
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39 tmp="$(mktemp)"
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40 cp "$1" "$tmp"
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41 sed -i 's|$1/*$INSTALLED|$INSTALLED|g' "$tmp"
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42 ( . "$tmp"; pre_remove "$root" )
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43 status
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44 rm "$tmp"
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45 fi
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46 }
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47
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48 call_post_remove() {
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49 local tmp
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50 if grep -q '^post_remove()' "$1"; then
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51 action 'Execute post-remove commands...'
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52 tmp="$(mktemp)"
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53 cp "$1" "$tmp"
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54 sed -i 's|$1/*$INSTALLED|$INSTALLED|g' "$tmp"
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55 ( . "$tmp"; post_remove "$root" )
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56 status
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57 rm "$tmp"
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58 fi
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59 }
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60
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61
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62 # return possible name for a virtual package name
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63
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64 virtual_pkg() {
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65 # input: $1 virtual package name
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66 # $2 repository db directory
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67 # output: display possible package name
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68
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69 debug "\nvirtual_pkg('$1', '$2')"
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70 local i
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71 unset IFS
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72 for i in $(grep -hs "^$1=" "$2/packages.equiv" | sed "s/^$1=//"); do
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73 if echo $i | fgrep -q : ; then
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74 # format 'alternative:newname'
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75 # if alternative is installed then substitute newname
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76 if [ -f $INSTALLED/${i%:*}/receipt ]; then
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77 # substitute package dependency
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78 echo ${i#*:}
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79 return
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80 fi
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81 elif ! grep -q "^$1 " "$2/packages.info" || [ -f "$INSTALLED/$i/receipt" ]; then
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82 # unconditional substitution
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83 echo $i
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84 return
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85 fi
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86 done
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87 # the real package name
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88 echo $1
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89 }
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90
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91
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92
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93
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94 for rep in $PRIORITY; do
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95 [ ! -f "$rep/packages.info" ] && continue
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96 PACKAGE="$(virtual_pkg "$1" "$rep")"
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97 [ "$PACKAGE" != "$1" ] && break
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98 done
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99
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100 if [ ! -f "$INSTALLED/$PACKAGE/receipt" ]; then
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101 newline; _ 'Package "%s" is not installed.' "$PACKAGE"
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102 exit 1
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103 fi
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104
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105 . "$INSTALLED/$PACKAGE/receipt"
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106
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107 # Info #1: dependent packages (to be processed later)
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108 ALTERED="$(awk -F$'\t' -vp=" $PACKAGE " 'index(" " $8 " ", p) { printf " %s\n", $1 }' "$PKGS_DB/installed.info")"
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109
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110 if [ -n "$ALTERED" ]; then
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111 _ 'The following packages depend on package "%s":' "$PACKAGE"
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112 echo "$ALTERED"
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113 fi
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114
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115 # Info #2: changed packages (to be processed later)
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116 REFRESH=$(cd "$INSTALLED"; grep -sl "^$PACKAGE$" */modifiers)
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117
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118 if [ -n "$REFRESH" ]; then
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119 _ 'The following packages have been modified by package "%s":' "$PACKAGE"
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120 for i in $REFRESH; do
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121 echo " ${i%/modifiers}"
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122 done
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123 fi
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124
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125 # Confirmation
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126 if im && [ -z "$auto" ]; then
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127 confirm "$(_ 'Remove package "%s" (%s)? (y/N)' "$PACKAGE" "$VERSION$EXTRAVERSION")"
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128 if [ "$?" -ne 0 ]; then
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129 newline; _ 'Uninstallation of package "%s" cancelled.' "$PACKAGE"
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130 exit 0
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131 fi
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132 fi
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133 # We are here: non-interactive mode, or --auto, or answer 'y'
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134
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135 # Removing package
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136 title 'Removing package "%s"' "$PACKAGE"
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137
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138 # [1/5] Pre-remove commands
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139 call_pre_remove "$INSTALLED/$PACKAGE/receipt"
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140
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141
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142 # [2/5] Removing files
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143 action 'Removing all files installed...'
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144
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145 # NOTE: package 'faenza-icon-theme' install time: 12s; removing time ~ 11min on my system o_O
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146 # After optimization: 3s! (Long) for-loops are (big) evil ;)
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147
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148 # NOTE: many packages contains filenames with spaces:
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149 # lzcat /var/lib/tazpkg/files.list.lzma | awk -F" " '{if(NF>2)print $1}' | sed 's|:$||' | uniq
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150 # Redefine IFS to only-new-line field separator:
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151 IFS=$'\n'
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152
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153 files2remove="$(mktemp)"
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154
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155 debug '\nDetermine which files to remove...'
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156 if [ -f "$INSTALLED/$PACKAGE/modifiers" ]; then
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157 debug ' (modifiers detected)'
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158
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159 mods="$(mktemp)"
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160 for mod in $(cat "$INSTALLED/$PACKAGE/modifiers"); do
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161 cat "$INSTALLED/$mod/files.list" >> "$mods" 2>/dev/null
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162 done
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163
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164 awk -vroot="$root" -vfl="$INSTALLED/$PACKAGE/files.list" '
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165 {
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166 if (FILENAME == fl)
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167 f[$0] = 1;
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168 else
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169 f[$0] = "";
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170 }
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171 END {
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172 for (i in f) {
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173 if (f[i] == 1) printf "%s%s\n", root, i;
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174 }
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175 }' "$INSTALLED/$PACKAGE/files.list" "$mods" > "$files2remove"
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176 rm "$mods"
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177 else
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178 debug ' (modifiers not detected)'
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179
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180 awk -vroot="$root" '{ printf "%s%s\n", root, $0; }' \
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181 "$INSTALLED/$PACKAGE/files.list" > "$files2remove"
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182 fi
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183
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184 debug 'Removing files...'
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185 xargs rm -f < "$files2remove"
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186
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187 debug 'Removing folders...'
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188 awk '
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189 BEGIN {
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190 FS = "/"; OFS = "/";
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191 }
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192 {
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193 # removing filename beyond the last "/"
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194 $NF = "";
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195 if (! a[$0]) {
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196 a[$0] = 1; print;
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197 }
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198 }' "$files2remove" | xargs rmdir -p 2>/dev/null
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199
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200 rm "$files2remove"
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201 unset IFS
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202
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203 status
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204
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205 # [3/5] Post-remove commands
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206 call_post_remove "$INSTALLED/$PACKAGE/receipt"
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207
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208 # [4/5] Update system databases
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209 local fl="$INSTALLED/$PACKAGE/files.list" upd=0 udesk umime uicon uschm ukrnl
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210
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211 fgrep /usr/share/applications/ "$fl" | fgrep -q .desktop && udesk='yes'
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212 fgrep -q /usr/share/mime "$fl" && umime='yes'
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213 fgrep -q /usr/share/icon/hicolor "$fl" && uicon='yes'
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214 fgrep -q /usr/share/glib-2.0/schemas "$fl" && uschm='yes'
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215 fgrep /usr/lib/gdk-pixbuf "$fl" | fgrep -q .so && upixb='yes'
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216 fgrep -q /lib/modules "$fl" && ukrnl='yes'
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217
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218 if [ -n "$udesk$umime$uicon$uschm$upixb$ukrnl" ]; then
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219 action 'Update system databases...'
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220 upd=1
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221 fi
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222
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223 # package 'desktop-file-utils'
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224 [ -n "$udesk" ] && chroot "$root/" /usr/bin/update-desktop-database /usr/share/applications 2>/dev/null
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225 # package 'shared-mime-info'
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226 [ -n "$umime" ] && chroot "$root/" /usr/bin/update-mime-database /usr/share/mime
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227 # packages 'gtk+', 'gtk+3'
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228 [ -n "$uicon" ] && chroot "$root/" /usr/bin/gtk-update-icon-cache /usr/share/icons/hicolor
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229 # package 'glib'
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230 [ -n "$uschm" ] && chroot "$root/" /usr/bin/glib-compile-schemas /usr/share/glib-2.0/schemas
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231 # package 'gdk-pixbuf'
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232 [ -n "$upixb" ] && chroot "$root/" /usr/bin/gdk-pixbuf-query-loaders --update-cache
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233 # packages 'busybox', 'kmod', 'depmod'
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234 [ -n "$ukrnl" ] && grep '/lib/modules' "$fl" | cut -d'/' -f4 | uniq | xargs chroot "$root/" /sbin/depmod -a
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235
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236 [ "$upd" -eq 1 ] && status
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237
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238
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239 # [5/5] Remove package receipt and remove it from databases
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240 action 'Removing package receipt...'
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241 rm -rf "$INSTALLED/$PACKAGE"
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242 sed -i "/ $PACKAGE-$VERSION$EXTRAVERSION.tazpkg$/d" "$PKGS_DB/installed.$SUM"
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243 sed -i "/^$PACKAGE /d" "$PKGS_DB/installed.info"
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244 status
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245
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246 footer "$(_ 'Package "%s" (%s) removed.' "$PACKAGE" "$VERSION$EXTRAVERSION")"
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247
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248 # Log this activity
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249 log_pkg Removed
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250
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251 # Stop if non-interactive mode and no --auto option
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252 if ! im && [ -z "$auto" ]; then exit 0; fi
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253
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254 # Process dependent packages
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255 if [ -n "$ALTERED" ]; then
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256 if [ -n "$auto" ]; then
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257 answer=0
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258 else
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259 confirm "$(_ 'Remove packages depending on package "%s"? (y/N)' "$PACKAGE")"
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260 answer=$?
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261 fi
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262 if [ "$answer" -eq 0 ]; then
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263 for i in $ALTERED; do
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264 if [ -d "$INSTALLED/$i" ]; then
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265 tazpkg remove $i
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266 fi
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267 done
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268 fi
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269 fi
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270
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271 # Process changed packages
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272 if [ -n "$REFRESH" ]; then
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273 if [ -n "$auto" ]; then
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274 answer=0
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275 else
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276 confirm "$(_ 'Reinstall packages modified by package "%s"? (y/N)' "$PACKAGE")"
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277 answer=$?
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278 fi
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279 if [ "$answer" -eq 0 ]; then
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280 for i in $REFRESH; do
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281 if [ "$(wc -l < "$INSTALLED/$i")" -gt 1 ]; then
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282 _ 'Package "%s" was modified by "%s" and other packages. It will not be reinstalled.' \
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283 "${i%/modifiers}" "$PACKAGE"
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284 _ 'Check "%s" for reinstallation.' "$INSTALLED/$i"
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285
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286 continue
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287 fi
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288 rm -r "$INSTALLED/$i"
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289 tazpkg get-install ${i%/modifiers} --forced
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290 done
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291 fi
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292 fi
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293
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