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Adds bittorrent support for live images #26

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Adds bittorrent support for live images #26

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3 changes: 2 additions & 1 deletion dracut.cmdline.7.asc
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Expand Up @@ -790,13 +790,14 @@ of your compressed filesystem image tarball.
=====================

**root=**live:__<url>__::
Boots a live image retrieved from __<url>__. Valid handlers: __http, httpd, ftp, tftp__.
Boots a live image retrieved from __<url>__. Valid handlers: __http, https, ftp, torrent, tftp__.
+
[listing]
.Example
--
root=live:http://example.com/liveboot.img
root=live:ftp://ftp.example.com/liveboot.img
root=live:torrent://example.com/liveboot.img.torrent
--

**rd.live.debug=**1::
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1 change: 1 addition & 0 deletions modules.d/45url-lib/module-setup.sh
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Expand Up @@ -17,6 +17,7 @@ depends() {
install() {
local _dir _crt _found _lib
inst_simple "$moddir/url-lib.sh" "/lib/url-lib.sh"
inst_multiple -o ctorrent
inst_multiple curl
# also install libs for curl https
inst_libdir_file "libnsspem.so*"
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30 changes: 30 additions & 0 deletions modules.d/45url-lib/url-lib.sh
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Expand Up @@ -82,6 +82,36 @@ set_http_header() {
echo "header = \"$1: $2\"" >> $CURL_HOME/.curlrc
}

### TORRENT ##########################################################

ctorrent_args="-E 0 -e 0"

ctorrent_fetch_url() {
local url="$1" outloc="$2"
url=${url#*//}
torrent_outloc="$outloc.torrent"
echo "$url" > /proc/self/fd/0
if [ -n "$outloc" ]; then
curl $curl_args --output - -- "$url" > "$torrent_outloc" || return $?
else
local outdir="$(mkuniqdir /tmp torrent_fetch_url)"
( cd "$outdir"; curl $curl_args --remote-name "$url" || return $? )
torrent_outloc="$outdir/$(ls -A $outdir)"
outloc=${torrent_outloc%.*}
fi
if ! [ -f "$torrent_outloc" ]; then
warn "Downloading '$url' failed!"
return 253
fi
ctorrent $ctorrent_args -s $outloc $torrent_outloc >&2
if ! [ -f "$outloc" ]; then
warn "Torrent download of '$url' failed!"
return 253
fi
if [ -z "$2" ]; then echo "$outloc" ; fi
}
add_url_handler ctorrent_fetch_url torrent

### NFS ##############################################################

[ -e /lib/nfs-lib.sh ] && . /lib/nfs-lib.sh
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