299 lines
8.4 KiB
Bash
299 lines
8.4 KiB
Bash
# This hook downloads the distfiles specified in a template by
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# the $distfiles variable and then verifies its sha256 checksum comparing
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# its value with the one stored in the $checksum variable.
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# Get the checksum for $curfile at index $dfcount
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get_cksum() {
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local curfile="$1" dfcount="$2" ckcount cksum i
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ckcount=0
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cksum=0
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for i in ${checksum}; do
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if [ $dfcount -eq $ckcount -a -n "$i" ]; then
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cksum=$i
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fi
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ckcount=$((ckcount + 1))
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done
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if [ -z "$cksum" ]; then
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msg_error "$pkgver: cannot find checksum for $curfile.\n"
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fi
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echo "$cksum"
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}
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# Return the checksum of the contents of a tarball
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contents_cksum() {
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local curfile="$1" cursufx cksum
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case $curfile in
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*.tar.lzma) cursufx="txz";;
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*.tar.lz) cursufx="tlz";;
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*.tlz) cursufx="tlz";;
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*.tar.xz) cursufx="txz";;
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*.txz) cursufx="txz";;
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*.tar.bz2) cursufx="tbz";;
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*.tbz) cursufx="tbz";;
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*.tar.gz) cursufx="tgz";;
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*.tgz) cursufx="tgz";;
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*.gz) cursufx="gz";;
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*.bz2) cursufx="bz2";;
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*.tar) cursufx="tar";;
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*.zip) cursufx="zip";;
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*.rpm) cursufx="rpm";;
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*.patch) cursufx="txt";;
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*.diff) cursufx="txt";;
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*.txt) cursufx="txt";;
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*.7z) cursufx="7z";;
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*.gem) cursufx="gem";;
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*.crate) cursufx="crate";;
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*) msg_error "$pkgver: unknown distfile suffix for $curfile.\n";;
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esac
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case ${cursufx} in
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tar|txz|tbz|tlz|tgz|crate)
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cksum=$($XBPS_DIGEST_CMD <($TAR_CMD -x -O -f "$curfile"))
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if [ $? -ne 0 ]; then
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msg_error "$pkgver: extracting $curfile to pipe.\n"
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fi
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;;
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gz)
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cksum=$($XBPS_DIGEST_CMD <(gunzip -c "$curfile"))
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;;
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bz2)
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cksum=$($XBPS_DIGEST_CMD <(bunzip2 -c "$curfile"))
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;;
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zip)
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if command -v unzip &>/dev/null; then
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cksum=$($XBPS_DIGEST_CMD <(unzip -p "$curfile"))
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if [ $? -ne 0 ]; then
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msg_error "$pkgver: extracting $curfile to pipe.\n"
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fi
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else
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msg_error "$pkgver: cannot find unzip bin for extraction.\n"
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fi
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;;
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rpm)
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if command -v rpmextract &>/dev/null; then
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cksum=$($XBPS_DIGEST_CMD <(rpm2cpio "$curfile" | $TAR_CMD -x -f -))
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if [ $? -ne 0 ]; then
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msg_error "$pkgver: extracting $curfile to pipe.\n"
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fi
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else
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msg_error "$pkgver: cannot find rpmextract for extraction.\n"
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fi
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;;
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txt)
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cksum=$($XBPS_DIGEST_CMD "$curfile")
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;;
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7z)
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if command -v 7z &>/dev/null; then
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cksum=$($XBPS_DIGEST_CMD <(7z x -o "$curfile"))
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if [ $? -ne 0 ]; then
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msg_error "$pkgver: extracting $curfile to pipe.\n"
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fi
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else
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msg_error "$pkgver: cannot find 7z bin for extraction.\n"
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fi
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;;
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gem)
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cksum=$($XBPS_DIGEST_CMD <($TAR_CMD -x -O -f "$curfile" data.tar.gz | $TAR_CMD -xzO ))
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;;
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*)
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msg_error "$pkgver: cannot guess $curfile extract suffix. ($cursufx)\n"
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;;
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esac
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if [ -z "$cksum" ]; then
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msg_error "$pkgver: cannot find contents checksum for $curfile.\n"
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fi
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echo "$cksum"
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}
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# Verify the checksum for $curfile stored at $distfile and index $dfcount
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verify_cksum() {
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local curfile="$1" distfile="$2" dfcount="$3" filesum cksum
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cksum=$(get_cksum $curfile $dfcount)
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# If the checksum starts with an commercial at (@) it is the contents checksum
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if [ "${cksum:0:1}" = "@" ]; then
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cksum=${cksum:1}
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msg_normal "$pkgver: verifying contents checksum for distfile '$curfile'... "
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filesum=$(contents_cksum "$curfile")
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if [ "${cksum}" != "$filesum" ]; then
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echo
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msg_red "SHA256 mismatch for '$curfile:'\n@$filesum\n"
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errors=$((errors + 1))
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else
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msg_normal_append "OK.\n"
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fi
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else
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msg_normal "$pkgver: verifying checksum for distfile '$curfile'... "
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filesum=$(${XBPS_DIGEST_CMD} "$distfile")
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if [ "$cksum" != "$filesum" ]; then
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echo
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msg_red "SHA256 mismatch for '$curfile:'\n$filesum\n"
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errors=$((errors + 1))
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else
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if [ ! -f "$XBPS_SRCDISTDIR/by_sha256/${cksum}_${curfile}" ]; then
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mkdir -p "$XBPS_SRCDISTDIR/by_sha256"
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ln -f "$distfile" "$XBPS_SRCDISTDIR/by_sha256/${cksum}_${curfile}"
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fi
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msg_normal_append "OK.\n"
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fi
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fi
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}
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# Link an existing cksum $distfile for $curfile at index $dfcount
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link_cksum() {
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local curfile="$1" distfile="$2" dfcount="$3" filesum cksum
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cksum=$(get_cksum $curfile $dfcount)
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if [ -n "$cksum" -a -f "$XBPS_SRCDISTDIR/by_sha256/${cksum}_${curfile}" ]; then
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ln -f "$XBPS_SRCDISTDIR/by_sha256/${cksum}_${curfile}" "$distfile"
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msg_normal "$pkgver: using known distfile $curfile.\n"
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fi
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}
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try_mirrors() {
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local curfile="$1" distfile="$2" dfcount="$3" subdir="$4" f="$5"
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local filesum cksum basefile mirror path scheme
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[ -z "$XBPS_DISTFILES_MIRROR" ] && return
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basefile="${f##*/}"
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cksum=$(get_cksum $curfile $dfcount)
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for mirror in $XBPS_DISTFILES_MIRROR; do
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scheme="file"
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if [[ $mirror == *://* ]]; then
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scheme="${mirror%%:/*}"
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path="${mirror#${scheme}://}"
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else
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path="$mirror"
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fi
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if [ "$scheme" == "file" ]; then
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# Skip file:// mirror locations (/some/where or file:///some/where)
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# where the specified directory does not exist
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if [ ! -d "$path" ]; then
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msg_warn "$pkgver: mount point $path does not exist...\n"
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continue
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fi
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fi
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if [[ "$mirror" == *voidlinux* ]]; then
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# For distfiles.voidlinux.* append the subdirectory
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mirror="$mirror/$subdir"
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fi
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msg_normal "$pkgver: fetching distfile '$curfile' from '$mirror'...\n"
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$fetch_cmd "$mirror/$curfile"
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# If basefile was not found, but a curfile file may exist, try to fetch it
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if [ ! -f "$distfile" -a "$basefile" != "$curfile" ]; then
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$fetch_cmd "$mirror/$basefile"
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fi
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[ ! -f "$distfile" ] && continue
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flock -n ${distfile}.part rm -f ${distfile}.part
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filesum=$(${XBPS_DIGEST_CMD} "$distfile")
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[ "$cksum" == "$filesum" ] && break
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msg_normal "$pkgver: checksum failed - removing '$curfile'...\n"
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rm -f ${distfile}
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done
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}
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hook() {
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local srcdir="$XBPS_SRCDISTDIR/$pkgname-$version"
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local dfcount=0 dfgood=0 errors=0 max_retries
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if [ ! -d "$srcdir" ]; then
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mkdir -p -m775 "$srcdir"
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chgrp $(id -g) "$srcdir"
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fi
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cd $srcdir || msg_error "$pkgver: cannot change dir to $srcdir!\n"
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# Disable trap on ERR; the code is smart enough to report errors and abort.
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trap - ERR
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# Detect bsdtar and GNU tar (in that order of preference)
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TAR_CMD="$(command -v bsdtar)"
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if [ -z "$TAR_CMD" ]; then
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TAR_CMD="$(command -v tar)"
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fi
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# Detect distfiles with obsolete checksum and purge them from the cache
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for f in ${distfiles}; do
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curfile="${f#*>}"
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curfile="${curfile##*/}"
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distfile="$srcdir/$curfile"
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if [ -f "$distfile" ]; then
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cksum=$(get_cksum $curfile $dfcount)
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if [ "${cksum:0:1}" = "@" ]; then
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cksum=${cksum:1}
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filesum=$(contents_cksum "$distfile")
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else
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filesum=$(${XBPS_DIGEST_CMD} "$distfile")
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fi
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if [ "$cksum" = "$filesum" ]; then
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dfgood=$((dfgood + 1))
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else
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inode=$(stat "$distfile" --printf "%i")
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msg_warn "$pkgver: wrong checksum found for ${curfile} - purging\n"
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find ${XBPS_SRCDISTDIR} -inum ${inode} -delete -print
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fi
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fi
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dfcount=$((dfcount + 1))
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done
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# We're done, if all distfiles were found and had good checksums
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[ $dfcount -eq $dfgood ] && return
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# Download missing distfiles and verify their checksums
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dfcount=0
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for f in ${distfiles}; do
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curfile="${f#*>}"
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curfile="${curfile##*/}"
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distfile="$srcdir/$curfile"
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# If file lock cannot be acquired wait until it's available.
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while true; do
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flock -w 1 ${distfile}.part true
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[ $? -eq 0 ] && break
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msg_warn "$pkgver: ${curfile} is already being downloaded, waiting for 1s ...\n"
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done
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# If distfile does not exist, try to link to it.
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if [ ! -f "$distfile" ]; then
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link_cksum $curfile $distfile $dfcount
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fi
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# If distfile does not exist, download it from a mirror location.
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if [ ! -f "$distfile" ]; then
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try_mirrors $curfile $distfile $dfcount $pkgname-$version $f
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fi
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# If distfile does not exist, download it from the original location.
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if [[ "$FTP_RETRIES" && "${f}" =~ ^ftp:// ]]; then
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max_retries="$FTP_RETRIES"
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else
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max_retries=1
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fi
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for retry in $(seq 1 1 $max_retries); do
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if [ ! -f "$distfile" ]; then
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if [ "$retry" == 1 ]; then
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msg_normal "$pkgver: fetching distfile '$curfile'...\n"
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else
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msg_normal "$pkgver: fetch attempt $retry of $max_retries...\n"
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fi
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flock "${distfile}.part" $fetch_cmd "$f"
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fi
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done
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if [ ! -f "$distfile" ]; then
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msg_error "$pkgver: failed to fetch $curfile.\n"
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fi
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# distfile downloaded, verify sha256 hash.
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flock -n ${distfile}.part rm -f ${distfile}.part
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verify_cksum $curfile $distfile $dfcount
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dfcount=$((dfcount + 1))
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done
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unset TAR_CMD
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if [ $errors -gt 0 ]; then
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msg_error "$pkgver: couldn't verify distfiles, exiting...\n"
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fi
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}
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