pkgs/build-support/fetchipfs/builder.sh

   1 if [ -e "$NIX_ATTRS_SH_FILE" ]; then . "$NIX_ATTRS_SH_FILE"; elif [ -f .attrs.sh ]; then . .attrs.sh; fi
   2 source $stdenv/setup
   3
   4 # Curl flags to handle redirects, not use EPSV, handle cookies for
   5 # servers to need them during redirects, and work on SSL without a
   6 # certificate (this isn't a security problem because we check the
   7 # cryptographic hash of the output anyway).
   8
   9 set -o noglob
  10
  11 curl="curl            \
  12  --location           \
  13  --max-redirs 20      \
  14  --retry 2            \
  15  --disable-epsv       \
  16  --cookie-jar cookies \
  17  --insecure           \
  18  --speed-time 5       \
  19  -#                   \
  20  --fail               \
  21  $curlOpts            \
  22  $NIX_CURL_FLAGS"
  23
  24 finish() {
  25     runHook postFetch
  26     set +o noglob
  27     exit 0
  28 }
  29
  30 ipfs_add() {
  31     if curl --retry 0 --head --silent "localhost:5001" > /dev/null; then
  32         echo "\e[0m\e[01;36m=IPFS=\e[0m add $ipfs"
  33         tar --owner=root --group=root -cWf "source.tar" $(echo *)
  34         res=$(curl -# -F "file=@source.tar" "localhost:5001/api/v0/tar/add" | sed 's/.*"Hash":"\(.*\)".*/\1/')
  35         if [ $ipfs != $res ]; then
  36             echo "\`ipfs tar add' results in $res when $ipfs is expected"
  37             exit 1
  38         fi
  39         rm "source.tar"
  40     fi
  41 }
  42
  43 echo
  44
  45 mkdir download
  46 cd download
  47
  48 if curl --retry 0 --head --silent "localhost:5001" > /dev/null; then
  49     curlexit=18;
  50     echo "\e[0m\e[01;36m=IPFS=\e[0m get $ipfs"
  51     # if we get error code 18, resume partial download
  52     while [ $curlexit -eq 18 ]; do
  53         # keep this inside an if statement, since on failure it doesn't abort the script
  54         if $curl -C - "http://localhost:5001/api/v0/tar/cat?arg=$ipfs" --output "$ipfs.tar"; then
  55             unpackFile "$ipfs.tar"
  56             rm "$ipfs.tar"
  57             set +o noglob
  58             mv $(echo *) "$out"
  59             finish
  60         else
  61             curlexit=$?;
  62         fi
  63     done
  64 fi
  65
  66 if test -n "$url"; then
  67     curlexit=18;
  68     echo "Downloading $url"
  69     while [ $curlexit -eq 18 ]; do
  70         # keep this inside an if statement, since on failure it doesn't abort the script
  71         if $curl "$url" -O; then
  72             set +o noglob
  73             tmpfile=$(echo *)
  74             unpackFile $tmpfile
  75             rm $tmpfile
  76             ipfs_add
  77             mv $(echo *) "$out"
  78             finish
  79         else
  80             curlexit=$?;
  81         fi
  82     done
  83 fi
  84
  85 echo "\e[01;31merror:\e[0m cannot download $ipfs from ipfs or the given url"
  86 echo
  87 set +o noglob
  88 exit 1