annotate sources/download_functions.sh @ 1274:b41dbea3ba14

When building control images, the working directory should be in build/control-images.
author Rob Landley <rob@landley.net>
date Sun, 07 Nov 2010 15:54:37 -0600
parents 1461d20bb6a7
children a80d7f256ff9
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1 #!/bin/echo "This file is sourced, not run"
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2
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3 # Remove version information and extension tarball name "$1".
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4 # If "$2", add that version number back, keeping original extension.
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5
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6 noversion()
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7 {
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8 LOGRUS='s/-*\(\([0-9\.]\)*\([_-]rc\)*\(-pre\)*\([0-9][a-zA-Z]\)*\)*\(\.tar\(\..z2*\)*\)$'
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9 [ -z "$2" ] && LOGRUS="$LOGRUS//" || LOGRUS="$LOGRUS/$2\\6/"
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10
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11 echo "$1" | sed -e "$LOGRUS"
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12 }
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13
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14 # Apply any patches to this package
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15 patch_package()
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16 {
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17 ls "$PATCHDIR/${PACKAGE}"-*.patch 2> /dev/null | sort | while read i
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18 do
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19 if [ -f "$i" ]
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20 then
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21 echo "Applying $i"
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22 (cd "${SRCTREE}/${PACKAGE}" &&
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23 patch -p1 -i "$i" &&
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24 sha1file "$i" >> "$SHA1FILE") ||
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25 ([ -z "$ALLOW_PATCH_FAILURE" ] && dienow)
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26 fi
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27 done
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28 }
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29
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30 # Extract tarball named in $1 and apply all relevant patches into
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31 # "$BUILD/packages/$1". Record sha1sum of tarball and patch files in
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32 # sha1-for-source.txt. Re-extract if tarball or patches change.
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33
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34 extract_package()
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35 {
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36 mkdir -p "$SRCTREE" || dienow
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37
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38 # Figure out whether we're using an unstable package.
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39
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40 PACKAGE="$1"
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41 is_in_list "$PACKAGE" $USE_UNSTABLE && PACKAGE=alt-"$PACKAGE"
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42
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43 # Announce to the world that we're cracking open a new package
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44
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45 echo "=== $PACKAGE ($ARCH_NAME $STAGE_NAME)"
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46 set_titlebar "$ARCH_NAME $STAGE_NAME $PACKAGE"
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47
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48 # Find tarball, and determine type
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49
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50 FILENAME="$(ls -tc "$SRCDIR/${PACKAGE}-"*.tar* 2>/dev/null | head -n 1)"
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51 DECOMPRESS=""
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52 [ "$FILENAME" != "${FILENAME/%\.tar\.bz2/}" ] && DECOMPRESS="j"
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53 [ "$FILENAME" != "${FILENAME/%\.tar\.gz/}" ] && DECOMPRESS="z"
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54
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55 # If the source tarball doesn't exist, but the extracted directory is there,
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56 # assume everything's ok.
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57
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58 SHA1FILE="$SRCTREE/$PACKAGE/sha1-for-source.txt"
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59 if [ -z "$FILENAME" ]
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60 then
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61 if [ ! -e "$SRCTREE/$PACKAGE" ]
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62 then
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63 echo "No tarball for $PACKAGE" >&2
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64 dienow
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65 fi
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66
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67 # If the sha1sum file isn't there, re-patch the package.
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68 [ ! -e "$SHA1FILE" ] && patch_package
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69 return 0
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70 fi
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71
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72 # Check the sha1 list from the previous extract. If the source is already
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73 # up to date (including patches), keep it.
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74
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75 SHA1TAR="$(sha1file "$FILENAME")"
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76 SHALIST=$(cat "$SHA1FILE" 2> /dev/null)
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77 if [ ! -z "$SHALIST" ]
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78 then
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79 for i in "$SHA1TAR" $(sha1file "$PATCHDIR/$PACKAGE"-* 2>/dev/null)
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80 do
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81 # Is this sha1 in the file?
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82 if [ -z "$(echo "$SHALIST" | sed -n "s/$i/$i/p" )" ]
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83 then
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84 SHALIST=missing
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85 break
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86 fi
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87 # Remove it
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88 SHALIST="$(echo "$SHALIST" | sed "s/$i//" )"
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89 done
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90 # If we matched all the sha1sums, nothing more to do.
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91 [ -z "$SHALIST" ] && return 0
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92 fi
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93
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94 # Re-extract the package, deleting the old one (if any)..
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95
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96 echo -n "Extracting '$PACKAGE'"
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97 (
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98 UNIQUE=$(readlink /proc/self)
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99 trap 'rm -rf "$BUILD/temp-'$UNIQUE'"' EXIT
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100 rm -rf "$SRCTREE/$PACKAGE" 2>/dev/null
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101 mkdir -p "$BUILD"/{temp-$UNIQUE,packages} || dienow
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102
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103 { tar -xv${DECOMPRESS} -f "$FILENAME" -C "$BUILD/temp-$UNIQUE" || dienow
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104 } | dotprogress
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105
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106 mv "$BUILD/temp-$UNIQUE/"* "$SRCTREE/$PACKAGE" &&
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107 echo "$SHA1TAR" > "$SHA1FILE"
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108 )
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109
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110 [ $? -ne 0 ] && dienow
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111
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112 patch_package
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113 }
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114
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115 # Confirm that a file has the appropriate checksum (or exists but SHA1 is blank)
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116 # Delete invalid file.
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117
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118 confirm_checksum()
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119 {
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120 SUM="$(sha1file "$SRCDIR/$FILENAME" 2>/dev/null)"
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121 if [ x"$SUM" == x"$SHA1" ] || [ -z "$SHA1" ] && [ -f "$SRCDIR/$FILENAME" ]
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122 then
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123 if [ -z "$SHA1" ]
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124 then
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125 echo "No SHA1 for $FILENAME ($SUM)"
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126 else
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127 echo "Confirmed $FILENAME"
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128 fi
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129
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130 # Preemptively extract source packages?
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131
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132 [ -z "$EXTRACT_ALL" ] && return 0
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133 extract_package "$BASENAME"
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134 return $?
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135 fi
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136
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137 # If there's a corrupted file, delete it. In theory it would be nice
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138 # to resume downloads, but wget creates "*.1" files instead.
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139
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140 rm "$SRCDIR/$FILENAME" 2> /dev/null
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141
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142 return 1
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143 }
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144
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145 # Attempt to obtain file from a specific location
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146
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147 download_from()
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148 {
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149 # Return success if we already have a valid copy of the file
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150
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151 confirm_checksum && return 0
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152
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153 # If we have another source, try to download file from there.
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154
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155 [ -z "$1" ] && return 1
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156 wget -t 2 -T 20 -O "$SRCDIR/$FILENAME" "$1" ||
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157 (rm "$SRCDIR/$FILENAME"; return 2)
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158 touch -c "$SRCDIR/$FILENAME"
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159
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160 confirm_checksum
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161 }
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162
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163 # Confirm a file matches sha1sum, else try to download it from mirror list.
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164
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165 download()
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166 {
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167 FILENAME=`echo "$URL" | sed 's .*/ '`
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168 [ -z "$RENAME" ] || FILENAME="$(echo "$FILENAME" | sed -r "$RENAME")"
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169 ALTFILENAME=alt-"$(noversion "$FILENAME" -0)"
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170
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171 echo -ne "checking $FILENAME\r"
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172
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173 # Update timestamps on both stable and unstable tarballs (if any)
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174 # so cleanup_oldfiles doesn't delete stable when we're building unstable
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175 # or vice versa
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176
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177 touch -c "$SRCDIR"/{"$FILENAME","$ALTFILENAME"} 2>/dev/null
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178
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179 # Give package name, minus file's version number and archive extension.
1257
1461d20bb6a7 Genericize the noversion() regex a bit, and make sure to only apply patches in the sources/patches directory that end in ".patch".
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parents: 1253
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180 BASENAME="$(noversion "$FILENAME")"
1253
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181
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182 # If unstable version selected, try from listed location, and fall back
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183 # to PREFERRED_MIRROR. Do not try normal mirror locations for unstable.
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184
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185 if is_in_list "$BASENAME" $USE_UNSTABLE
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186 then
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187 # If extracted source directory exists, don't download alt-tarball.
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188 [ -e "$SRCTREE/alt-$BASENAME" ] && return 0
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189
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190 # Download new one as alt-packagename.tar.ext
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191 FILENAME="$ALTFILENAME"
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192 SHA1=
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193
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194 ([ ! -z "$PREFERRED_MIRROR" ] &&
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195 download_from "$PREFERRED_MIRROR/$ALTFILENAME") ||
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196 download_from "$UNSTABLE"
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197 return $?
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198 fi
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199
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200 # If environment variable specifies a preferred mirror, try that first.
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201
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202 if [ ! -z "$PREFERRED_MIRROR" ]
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203 then
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204 download_from "$PREFERRED_MIRROR/$FILENAME" && return 0
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205 fi
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206
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207 # Try original location, then mirrors.
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208 # Note: the URLs in mirror list cannot contain whitespace.
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209
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210 download_from "$URL" && return 0
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211 for i in $MIRROR_LIST
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212 do
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213 download_from "$i/$FILENAME" && return 0
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214 done
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215
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216 # Return failure.
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217
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218 echo "Could not download $FILENAME"
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219 echo -en "\e[0m"
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220 return 1
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parents:
diff changeset
221 }
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parents:
diff changeset
222
d4b251e78fc0 Break out download_functions.sh into their own file.
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223 # Clean obsolete files out of the source directory
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parents:
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224
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225 START_TIME=`date +%s`
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parents:
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226
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227 cleanup_oldfiles()
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diff changeset
228 {
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parents:
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229 # wait for asynchronous downloads to complete
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parents:
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230
d4b251e78fc0 Break out download_functions.sh into their own file.
Rob Landley <rob@landley.net>
parents:
diff changeset
231 wait
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parents:
diff changeset
232
d4b251e78fc0 Break out download_functions.sh into their own file.
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parents:
diff changeset
233 for i in "${SRCDIR}"/*
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234 do
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parents:
diff changeset
235 if [ -f "$i" ] && [ "$(date +%s -r "$i")" -lt "${START_TIME}" ]
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parents:
diff changeset
236 then
d4b251e78fc0 Break out download_functions.sh into their own file.
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parents:
diff changeset
237 echo Removing old file "$i"
d4b251e78fc0 Break out download_functions.sh into their own file.
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parents:
diff changeset
238 rm -rf "$i"
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parents:
diff changeset
239 fi
d4b251e78fc0 Break out download_functions.sh into their own file.
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parents:
diff changeset
240 done
d4b251e78fc0 Break out download_functions.sh into their own file.
Rob Landley <rob@landley.net>
parents:
diff changeset
241 }