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functions
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############################################################### smallutils
smallyes() {
YES="${1-y}"
while echo "$YES" 2>/dev/null ; do : ; done
}
in_path () {
local OLD_IFS="$IFS"
IFS=":"
for dir in $PATH; do
if [ -x "$dir/$1" ]; then
IFS="$OLD_IFS"
return 0
fi
done
IFS="$OLD_IFS"
return 1
}
############################################################### interaction
error () {
# <error code> <name> <string> <args>
local err name fmt
err="$1"
name="$2"
fmt="$3"
shift; shift; shift
if [ "$USE_DEBIANINSTALLER_INTERACTION" ]; then
(echo "E: $name"
for x in "$@"; do echo "EA: $x"; done
echo "EF: $fmt") >&4
else
(printf "E: $fmt\n" "$@") >&4
fi
exit "$err"
}
warning () {
# <name> <string> <args>
local name fmt
name="$1"
fmt="$2"
shift; shift
if [ "$USE_DEBIANINSTALLER_INTERACTION" ]; then
(echo "W: $name"
for x in "$@"; do echo "WA: $x"; done
echo "WF: $fmt") >&4
else
printf "W: $fmt\n" "$@" >&4
fi
}
info () {
# <name> <string> <args>
local name fmt
name="$1"
fmt="$2"
shift; shift
if [ "$USE_DEBIANINSTALLER_INTERACTION" ]; then
(echo "I: $name"
for x in "$@"; do echo "IA: $x"; done
echo "IF: $fmt") >&4
else
printf "I: $fmt\n" "$@" >&4
fi
}
PROGRESS_NOW=0
PROGRESS_END=0
PROGRESS_NEXT=""
PROGRESS_WHAT=""
progress_next () {
PROGRESS_NEXT="$1"
}
wgetprogress () {
[ ! "$VERBOSE" ] && QSWITCH="-q"
local ret=0
if [ "$USE_DEBIANINSTALLER_INTERACTION" ] && [ "$PROGRESS_NEXT" ]; then
# The exit status of a pipeline is that of the last command in
# the pipeline, so wget's exit status must be saved in the
# pipeline's first command. Since commands in a pipeline run in
# subshells, we have to print the exit status (on a file
# descriptor other than standard output, which is used by the
# pipeline itself) and then assign it to $ret outside of the
# pipeline. The "||" is necessary due to "set -e"; otherwise, a
# non-zero exit status would cause the echo command to be
# skipped. If wget succeeds, $ret will be "", so it then has to
# be set to a default value of 0.
ret=$({ { wget $@ 2>&1 >/dev/null || echo $? >&2; } | "$PKGDETAILS" "WGET%" "$PROGRESS_NOW" "$PROGRESS_NEXT" "$PROGRESS_END" >&3; } 2>&1)
: ${ret:=0}
else
wget $QSWITCH $@
ret=$?
fi
return $ret
}
progress () {
# <now> <end> <name> <string> <args>
local now end name fmt
now="$1"
end="$2"
name="$3"
fmt="$4"
shift; shift; shift; shift
if [ "$USE_DEBIANINSTALLER_INTERACTION" ]; then
PROGRESS_NOW="$now"
PROGRESS_END="$end"
PROGRESS_NEXT=""
(echo "P: $now $end $name"
for x in "$@"; do echo "PA: $x"; done
echo "PF: $fmt") >&3
fi
}
dpkg_progress () {
# <now> <end> <name> <desc> UNPACKING|CONFIGURING
local now end name desc action expect
now="$1"
end="$2"
name="$3"
desc="$4"
action="$5"
expect=""
if [ "$action" = UNPACKING ]; then
expect=half-installed
elif [ "$action" = CONFIGURING ]; then
expect=half-configured
fi
dp () {
now=$(($now + ${1:-1}))
}
exitcode=0
while read status pkg qstate; do
if [ "$status" = "EXITCODE" ]; then
exitcode="$pkg"
continue
fi
[ "$qstate" = "$expect" ] || continue
case $qstate in
half-installed)
dp; progress "$now" "$end" "$name" "$desc"
info "$action" "Unpacking %s..." "${pkg%:}"
expect="unpacked"
;;
unpacked)
expect="half-installed"
;;
half-configured)
dp; progress "$now" "$end" "$name" "$desc"
info "$action" "Configuring %s..." "${pkg%:}"
expect="installed"
;;
installed)
expect="half-configured"
;;
esac
done
return "$exitcode"
}
############################################################# set variables
default_mirror () {
DEF_MIRROR="$1"
}
FINDDEBS_NEEDS_INDICES="false"
finddebs_style () {
case "$1" in
hardcoded)
;;
from-indices)
FINDDEBS_NEEDS_INDICES="true"
;;
*)
error 1 BADFINDDEBS "unknown finddebs style"
;;
esac
}
mk_download_dirs () {
if [ "$DLDEST" = "apt_dest" ]; then
mkdir -p "$TARGET/$APTSTATE/lists/partial"
mkdir -p "$TARGET/var/cache/apt/archives/partial"
fi
}
download_style () {
case "$1" in
apt)
if [ "$2" = "var-state" ]; then
APTSTATE="var/state/apt"
else
APTSTATE="var/lib/apt"
fi
DLDEST="apt_dest"
export APTSTATE DLDEST DEBFOR
;;
*)
error 1 BADDLOAD "unknown download style"
;;
esac
}
keyring () {
# avoid unnecessary warning with --second-stage
if [ -z "$KEYRING" ] && [ "$SECOND_STAGE_ONLY" != true ]; then
if [ -e "$1" ]; then
KEYRING="$1"
elif [ -z "$DISABLE_KEYRING" ]; then
if [ -n "$DEF_HTTPS_MIRROR" ] && [ -z "$USER_MIRROR" ] && [ -z "$FORCE_KEYRING" ]; then
info KEYRING "Keyring file not available at %s; switching to https mirror %s" "$1" "$DEF_HTTPS_MIRROR"
USER_MIRROR="$DEF_HTTPS_MIRROR"
else
warning KEYRING "Cannot check Release signature; keyring file not available %s" "$1"
if [ -n "$FORCE_KEYRING" ]; then
error 1 KEYRING "Keyring-based check was requested; aborting accordingly"
fi
fi
fi
fi
}
########################################################## variant handling
doing_variant () {
if [ "$1" = "$VARIANT" ]; then return 0; fi
if [ "$1" = "-" ] && [ "$VARIANT" = "" ]; then return 0; fi
return 1
}
SUPPORTED_VARIANTS="-"
variants () {
SUPPORTED_VARIANTS="$*"
for v in $*; do
if doing_variant "$v"; then return 0; fi
done
error 1 UNSUPPVARIANT "unsupported variant"
}
########################################################### option handling
check_conflicting_option () {
if [ "$set_what_to_do" = --foreign ] && [ "${1%%=*}" = --unpack-tarball ] || \
[ "${set_what_to_do%%=*}" = "--unpack-tarball" ] && [ "$1" == --foreign ]; then
LOOSEN_CONFLICTING_RESTRICTION="true"
elif [ -n "$set_what_to_do" ]; then
error 1 ARG_CONFLICTING "$set_what_to_do is specified with $1, please use only one of those options."
fi
set_what_to_do="$1"
}
################################################# work out names for things
mirror_style () {
case "$1" in
release)
DOWNLOAD_INDICES="download_release_indices"
DOWNLOAD_DEBS="download_release"
;;
main)
DOWNLOAD_INDICES="download_main_indices"
DOWNLOAD_DEBS="download_main"
;;
*)
error 1 BADMIRROR "unknown mirror style"
;;
esac
export DOWNLOAD_INDICES
export DOWNLOAD_DEBS
}
force_md5 () {
DEBOOTSTRAP_CHECKSUM_FIELD=MD5SUM
export DEBOOTSTRAP_CHECKSUM_FIELD
}
verify_checksum () {
# args: dest checksum size
local expchecksum="$2"
local expsize="$3"
if [ "$DEBOOTSTRAP_CHECKSUM_FIELD" = "MD5SUM" ]; then
if in_path md5sum; then
relchecksum=$(md5sum < "$1" | sed 's/ .*$//')
elif in_path md5; then
relchecksum=$(md5 < "$1")
else
error 1 SIGCHECK "Cannot check md5sum"
fi
else
if in_path "sha${SHA_SIZE}sum"; then
relchecksum="$(sha${SHA_SIZE}sum < "$1" | sed 's/ .*$//')"
elif in_path "sha${SHA_SIZE}"; then
relchecksum="$(sha${SHA_SIZE} < "$1")"
else
error 1 SIGCHECK "Cannot check sha${SHA_SIZE}sum"
fi
fi
relsize="$(wc -c < "$1")"
if [ "$expsize" -ne "$relsize" ] || [ "$expchecksum" != "$relchecksum" ]; then
return 1
fi
return 0
}
get () {
# args: from dest 'nocache'
# args: from dest [checksum size] [alt {checksum size type}]
# args: from dest 'byhash' [checksum size] [alt {checksum size type}]
local displayname
local versionname
local from_base
local dest_base
local nocache=""
local byhash=""
from_base="$1"; shift
dest_base="$1"; shift
if [ "$1" = "nocache" ]; then
nocache="true"; shift
elif [ "$1" = "byhash" ]; then
byhash="true"; shift
fi
if [ "${dest_base%.deb}" != "$dest_base" ]; then
displayname="$(echo "$dest_base" | sed 's,^.*/,,;s,_.*$,,')"
versionname="$(echo "$dest_base" | sed 's,^.*/,,' | cut -d_ -f2 | sed 's/%3a/:/')"
else
displayname="$(echo "$from_base" | sed 's,^.*/,,')"
fi
if [ -e "$dest_base" ]; then
if [ -z "$1" ]; then
return 0
elif [ -n "$nocache" ]; then
rm -f "$dest_base"
else
info VALIDATING "Validating %s %s" "$displayname" "$versionname"
if verify_checksum "$dest_base" "$1" "$2"; then
return 0
else
rm -f "$dest_base"
fi
fi
fi
if [ "$#" -gt 3 ]; then
local st=1
if [ "$3" = "-" ]; then st=4; fi
local order="$(a=$st; while [ "$a" -le $# ]; do eval echo \"\${$(($a+1))}\" $a;
a=$(($a + 3)); done | sort -n | sed 's/.* //')"
else
local order=1
fi
for a in $order; do
local checksum siz typ from dest iters
checksum="$(eval echo \${$a})"
siz="$(eval echo \${$(( $a+1 ))})"
typ="$(eval echo \${$(( $a+2 ))})"
iters="0"
case "$typ" in
xz) from="$from_base.xz"; dest="$dest_base.xz" ;;
bz2) from="$from_base.bz2"; dest="$dest_base.bz2" ;;
gz) from="$from_base.gz"; dest="$dest_base.gz" ;;
*) from="$from_base"; dest="$dest_base" ;;
esac
if [ ! -z "$CACHE_DIR" ]; then
dest="${dest%%*/}"
elif [ "${dest#/}" = "$dest" ]; then
dest="./$dest"
fi
local dest2="$dest"
if [ -d "${dest2%/*}/partial" ]; then
dest2="${dest2%/*}/partial/${dest2##*/}"
fi
while [ "$iters" -lt 10 ]; do
local from2=""
info RETRIEVING "Retrieving %s %s" "$displayname" "$versionname"
if [ "$checksum" != "" ] && [ "$byhash" != "" ]; then
# assume we don't mix acquire-by-hash and md5
from2="$(dirname "$from")/by-hash/SHA${SHA_SIZE}/$checksum"
fi
if [ ! -e "$dest2" ]; then
if [ -z "$from2" ] || ! just_get "$from2" "$dest2"; then
if ! just_get "$from" "$dest2"; then continue 1; fi
fi
fi
if [ "$checksum" != "" ]; then
info VALIDATING "Validating %s %s" "$displayname" "$versionname"
if verify_checksum "$dest2" "$checksum" "$siz"; then
checksum=""
fi
fi
if [ -z "$checksum" ]; then
[ "$dest2" = "$dest" ] || mv "$dest2" "$dest"
case "$typ" in
gz) gunzip "$dest" ;;
bz2) bunzip2 "$dest" ;;
xz) unxz "$dest" ;;
esac
return 0
else
rm -f "$dest2"
warning RETRYING "Retrying failed download of %s" "$from"
iters=$(($iters + 1))
fi
done
warning CORRUPTFILE "%s was corrupt" "$from"
done
return 1
}
just_get () {
# args: from dest
local from="$1"
local dest="$2"
mkdir -p "${dest%/*}"
if [ "${from#null:}" != "$from" ]; then
error 1 NOTPREDL "%s was not pre-downloaded" "${from#null:}"
elif [ "${from#http://}" != "$from" ] || [ "${from#ftp://}" != "$from" ]; then
# http/ftp mirror
if wgetprogress -O "$dest" "$from"; then
return 0
else
rm -f "$dest"
return 1
fi
elif [ "${from#https://}" != "$from" ] ; then
# http/ftp mirror
if wgetprogress "$CHECKCERTIF" "$CERTIFICATE" "$PRIVATEKEY" -O "$dest" "$from"; then
return 0
else
rm -f "$dest"
return 1
fi
elif [ "${from#file:}" != "$from" ]; then
local base="${from#file:}"
if [ "${base#//}" != "$base" ]; then
base="/${from#file://*/}"
fi
if [ -e "$base" ]; then
cp "$base" "$dest"
return 0
else
return 1
fi
elif [ "${from#ssh:}" != "$from" ]; then
local ssh_dest="$(echo "$from" | sed -e 's#ssh://##' -e 's#/#:/#')"
if [ -n "$ssh_dest" ]; then
scp "$ssh_dest" "$dest"
return 0
else
return 1
fi
else
error 1 UNKNOWNLOC "unknown location %s" "$from"
fi
}
download () {
mk_download_dirs
"$DOWNLOAD_DEBS" "$(echo "$@" | tr ' ' '\n' | sort)"
}
download_indices () {
mk_download_dirs
"$DOWNLOAD_INDICES" "$(echo "$@" | tr ' ' '\n' | sort)"
}
debfor () {
(while read pkg path; do
for p in "$@"; do
[ "$p" = "$pkg" ] || continue;
echo "$path"
done
done <"$TARGET/debootstrap/debpaths"
)
}
apt_dest () {
# args:
# deb package version arch mirror path
# pkg suite component arch mirror path
# rel suite mirror path
case "$1" in
deb)
echo "/var/cache/apt/archives/${2}_${3}_${4}.deb" | sed 's/:/%3a/'
;;
pkg)
local m="$5"
printf "%s" "$APTSTATE/lists/"
echo "${m}_$6" | sed -e 's,^[^:]*://,,' -e 's/\//_/g'
;;
rel)
local m="$3"
printf "%s" "$APTSTATE/lists/"
echo "${m}_$4" | sed -e 's,^[^:]*://,,' -e 's/\//_/g'
;;
esac
}
################################################################## download
get_release_checksum () {
local reldest path
reldest="$1"
path="$2"
if [ "$DEBOOTSTRAP_CHECKSUM_FIELD" = MD5SUM ]; then
local match="^[Mm][Dd]5[Ss][Uu][Mm]"
else
local match="^[Ss][Hh][Aa]$SHA_SIZE:"
fi
sed -n "/$match/,/^[^ ]/p" < "$reldest" | \
while read a b c; do
if [ "$c" = "$path" ]; then echo "$a $b"; fi
done | head -n 1
}
extract_release_components () {
local reldest="$1"; shift
TMPCOMPONENTS="$(sed -n 's/Components: *//p' "$reldest")"
for c in $TMPCOMPONENTS ; do
eval "
case \"\$c\" in
$USE_COMPONENTS)
COMPONENTS=\"\$COMPONENTS \$c\"
;;
esac
"
done
if [ -z "$COMPONENTS" ]; then
mv "$reldest" "$reldest.malformed"
error 1 INVALIDREL "Invalid Release file, no valid components"
fi
}
CODENAME=""
validate_suite () {
local reldest suite
reldest="$1"
CODENAME=$(sed -n "s/^Codename: *//p" "$reldest")
suite=$(sed -n "s/^Suite: *//p" "$reldest")
if [ "$SUITE" != "$suite" ] && [ "$SUITE" != "$CODENAME" ]; then
error 1 WRONGSUITE "Asked to install suite %s, but got %s (codename: %s) from mirror" "$SUITE" "$suite" "$CODENAME"
fi
}
split_inline_sig () {
local inreldest reldest relsigdest
inreldest="$1"
reldest="$2"
relsigdest="$3"
# Note: InRelease files are fun since one needs to remove the
# last newline from the PGP SIGNED MESSAGE part, while keeping
# the PGP SIGNATURE part intact. This shell implementation
# should work on most if not all systems, instead of trying to
# sed/tr/head, etc.
rm -f "$reldest" "$relsigdest"
nl=""
state="pre-begin"
while IFS= read -r line; do
case "${state}" in
pre-begin)
if [ "x${line}" = "x-----BEGIN PGP SIGNED MESSAGE-----" ]; then
state="begin"
fi
;;
begin)
if [ "x${line}" = "x" ]; then
state="data"
fi
;;
data)
if [ "x${line}" = "x-----BEGIN PGP SIGNATURE-----" ]; then
printf "%s\n" "${line}" > "$relsigdest"
state="signature"
else
printf "${nl}%s" "${line}" >> "$reldest"
nl="\n"
fi
;;
signature)
printf "%s\n" "${line}" >> "$relsigdest"
if [ "x${line}" = "x-----END PGP SIGNATURE-----" ]; then
break
fi
esac
done < "$inreldest"
}
download_release_sig () {
local m1 inreldest reldest relsigdest
m1="$1"
inreldest="$2"
reldest="$3"
relsigdest="$4"
progress 0 100 DOWNREL "Downloading Release file"
progress_next 100
if get "$m1/dists/$SUITE/InRelease" "$inreldest" nocache; then
split_inline_sig "$inreldest" "$reldest" "$relsigdest"
progress 100 100 DOWNREL "Downloading Release file"
else
get "$m1/dists/$SUITE/Release" "$reldest" nocache ||
error 1 NOGETREL "Failed getting release file %s" "$m1/dists/$SUITE/Release"
progress 100 100 DOWNREL "Downloading Release file"
fi
if [ -n "$KEYRING" ] && [ -z "$DISABLE_KEYRING" ]; then
progress 0 100 DOWNRELSIG "Downloading Release file signature"
if ! [ -f "$relsigdest" ]; then
progress_next 50
get "$m1/dists/$SUITE/Release.gpg" "$relsigdest" nocache ||
error 1 NOGETRELSIG "Failed getting release signature file %s" \
"$m1/dists/$SUITE/Release.gpg"
progress 50 100 DOWNRELSIG "Downloading Release file signature"
fi
info RELEASESIG "Checking Release signature"
# Don't worry about the exit status from gpgv; parsing the output will
# take care of that.
(gpgv --status-fd 1 --keyring "$KEYRING" --ignore-time-conflict \
"$relsigdest" "$reldest" || true) | read_gpg_status
progress 100 100 DOWNRELSIG "Downloading Release file signature"
fi
}
download_release_indices () {
local m1 inreldest reldest relsigdest totalpkgs \
subpath xzi bz2i gzi normi i ext \
donepkgs pkgdest acquirebyhash
m1="${MIRRORS%% *}"
inreldest="$TARGET/$($DLDEST rel "$SUITE" "$m1" "dists/$SUITE/InRelease")"
reldest="$TARGET/$($DLDEST rel "$SUITE" "$m1" "dists/$SUITE/Release")"
relsigdest="$TARGET/$($DLDEST rel "$SUITE" "$m1" "dists/$SUITE/Release.gpg")"
download_release_sig "$m1" "$inreldest" "$reldest" "$relsigdest"
validate_suite "$reldest"
extract_release_components "$reldest"
acquirebyhash=$(grep "^Acquire-By-Hash: yes$" "$reldest" || true)
totalpkgs=0
for c in $COMPONENTS; do
subpath="$c/binary-$ARCH/Packages"
xzi="$(get_release_checksum "$reldest" "$subpath.xz")"
bz2i="$(get_release_checksum "$reldest" "$subpath.bz2")"
gzi="$(get_release_checksum "$reldest" "$subpath.gz")"
normi="$(get_release_checksum "$reldest" "$subpath")"
if [ "$normi" != "" ]; then
i="$normi"
elif in_path bunzip2 && [ "$bz2i" != "" ]; then
i="$bz2i"
elif in_path unxz && [ "$xzi" != "" ]; then
i="$xzi"
elif in_path gunzip && [ "$gzi" != "" ]; then
i="$gzi"
fi
if [ "$i" != "" ]; then
totalpkgs=$(( $totalpkgs + ${i#* } ))
else
mv "$reldest" "$reldest.malformed"
error 1 MISSINGRELENTRY "Invalid Release file, no entry for %s" "$subpath"
fi
done
donepkgs=0
progress 0 $totalpkgs DOWNPKGS "Downloading Packages files"
for c in $COMPONENTS; do
subpath="$c/binary-$ARCH/Packages"
path="dists/$SUITE/$subpath"
xzi="$(get_release_checksum "$reldest" "$subpath.xz")"
bz2i="$(get_release_checksum "$reldest" "$subpath.bz2")"
gzi="$(get_release_checksum "$reldest" "$subpath.gz")"
normi="$(get_release_checksum "$reldest" "$subpath")"
ext=""
if [ "$acquirebyhash" != "" ]; then
ext="$ext byhash"
fi
if [ "$normi" != "" ]; then
ext="$ext $normi ."
i="$normi"
fi
if in_path unxz && [ "$xzi" != "" ]; then
ext="$ext $xzi xz"
i="${i:-$xzi}"
fi
if in_path bunzip2 && [ "$bz2i" != "" ]; then
ext="$ext $bz2i bz2"
i="${i:-$bz2i}"
fi
if in_path gunzip && [ "$gzi" != "" ]; then
ext="$ext $gzi gz"
i="${i:-$gzi}"
fi
progress_next $(($donepkgs + ${i#* }))
for m in $MIRRORS; do
pkgdest="$TARGET/$($DLDEST pkg "$SUITE" "$c" "$ARCH" "$m" "$path")"
if get "$m/$path" "$pkgdest" $ext; then break; fi
done
if [ ! -f "$pkgdest" ]; then
error 1 COULDNTDL "Couldn't download %s" "$m/$path"
fi
donepkgs=$(($donepkgs + ${i#* }))
progress $donepkgs $totalpkgs DOWNPKGS "Downloading Packages files"
done
}
get_package_sizes () {
# mirror pkgdest debs..
local m pkgdest
m="$1"; shift
pkgdest="$1"; shift
$PKGDETAILS PKGS "$m" "$pkgdest" "$@" | (
newleft=""
totaldebs=0
countdebs=0
while read p details; do
if [ "$details" = "-" ]; then
newleft="$newleft $p"
else
size="${details##* }";
totaldebs=$(($totaldebs + $size))
countdebs=$(($countdebs + 1))
fi
done
echo "$countdebs $totaldebs$newleft"
)
}
# note, leftovers come back on fd5 !!
download_debs () {
local m pkgdest debdest debcache
m="$1"
pkgdest="$2"
shift; shift
"$PKGDETAILS" PKGS "$m" "$pkgdest" "$@" | (
leftover=""
while read p ver arc mdup fil checksum size; do
if [ "$ver" = "-" ]; then
leftover="$leftover $p"
else
progress_next $(($dloaddebs + $size))
debdest="$($DLDEST deb "$p" "$ver" "$arc" "$m" "$fil")"
debcache="$(echo "$p"_"$ver"_"$arc".deb | sed 's/:/%3a/')"
if [ -z "$CACHE_DIR" ] && get "$m/$fil" "$TARGET/$debdest" "$checksum" "$size"; then
dloaddebs=$(($dloaddebs + $size))
echo >>"$TARGET/debootstrap/deburis" "$p $ver $m/$fil"
echo >>"$TARGET/debootstrap/debpaths" "$p $debdest"
elif [ -d "$CACHE_DIR" ] && get "$m/$fil" "$CACHE_DIR/$debcache" "$checksum" "$size"; then
dloaddebs=$(($dloaddebs + $size))
echo >>"$TARGET/debootstrap/deburis" "$p $ver $m/$fil"
echo >>"$TARGET/debootstrap/debpaths" "$p $debdest"
cp "$CACHE_DIR/$debcache" "$TARGET/$debdest"
else
warning COULDNTDL "Couldn't download package %s (ver %s arch %s) at %s" "$p" "$ver" "$arc" "$m/$fil"
leftover="$leftover $p"
fi
fi
done
echo >&5 ${leftover# }
)
}
download_release () {
local m1 numdebs countdebs totaldebs leftoverdebs path pkgdest dloaddebs
m1="${MIRRORS%% *}"
numdebs="$#"
countdebs=0
progress "$countdebs" "$numdebs" SIZEDEBS "Finding package sizes"
totaldebs=0
leftoverdebs="$*"
# Fix possible duplicate package names, which would screw up counts:
leftoverdebs=$(printf "$leftoverdebs"|tr ' ' '\n'|sort -u|tr '\n' ' ')
numdebs=$(printf "$leftoverdebs"|wc -w)
for c in $COMPONENTS; do
if [ "$countdebs" -ge "$numdebs" ]; then break; fi
path="dists/$SUITE/$c/binary-$ARCH/Packages"
pkgdest="$TARGET/$($DLDEST pkg "$SUITE" "$c" "$ARCH" "$m1" "$path")"
if [ ! -e "$pkgdest" ]; then continue; fi
info CHECKINGSIZES "Checking component %s on %s..." "$c" "$m1"
leftoverdebs="$(get_package_sizes "$m1" "$pkgdest" $leftoverdebs)"
countdebs=$(($countdebs + ${leftoverdebs%% *}))
leftoverdebs=${leftoverdebs#* }
totaldebs=${leftoverdebs%% *}
leftoverdebs=${leftoverdebs#* }
progress "$countdebs" "$numdebs" SIZEDEBS "Finding package sizes"
done
if [ "$countdebs" -ne "$numdebs" ]; then
error 1 LEFTOVERDEBS "Couldn't find these debs: %s" "$leftoverdebs"
fi
dloaddebs=0
progress "$dloaddebs" "$totaldebs" DOWNDEBS "Downloading packages"
:>"$TARGET/debootstrap/debpaths"
pkgs_to_get="$*"
for c in $COMPONENTS; do
path="dists/$SUITE/$c/binary-$ARCH/Packages"
for m in $MIRRORS; do
pkgdest="$TARGET/$($DLDEST pkg "$SUITE" "$c" "$ARCH" "$m" "$path")"
if [ ! -e "$pkgdest" ]; then continue; fi
pkgs_to_get="$(download_debs "$m" "$pkgdest" $pkgs_to_get 5>&1 1>&6)"
if [ -z "$pkgs_to_get" ]; then break; fi
done 6>&1
if [ -z "$pkgs_to_get" ]; then break; fi
done
progress "$dloaddebs" "$totaldebs" DOWNDEBS "Downloading packages"
if [ "$pkgs_to_get" != "" ]; then
error 1 COULDNTDLPKGS "Couldn't download packages: %s" "$pkgs_to_get"
fi
}
download_main_indices () {
local m1 comp path pkgdest
m1="${MIRRORS%% *}"
comp="${USE_COMPONENTS}"
progress 0 100 DOWNMAINPKGS "Downloading Packages file"
progress_next 100
if [ -z "$comp" ]; then comp=main; fi
COMPONENTS="$(echo $comp | tr '|' ' ')"
export COMPONENTS
for m in $MIRRORS; do
for c in $COMPONENTS; do
path="dists/$SUITE/$c/binary-$ARCH/Packages"
pkgdest="$TARGET/$($DLDEST pkg "$SUITE" "$c" "$ARCH" "$m" "$path")"
if in_path gunzip && get "$m/${path}.gz" "${pkgdest}.gz"; then
rm -f "$pkgdest"
gunzip "$pkgdest.gz"
elif get "$m/$path" "$pkgdest"; then
true
fi
done
done
progress 100 100 DOWNMAINPKGS "Downloading Packages file"
}
download_main () {
local m1 path pkgdest debdest
m1="${MIRRORS%% *}"
:>"$TARGET/debootstrap/debpaths"
for p in "$@"; do
for c in $COMPONENTS; do
local details=""
for m in $MIRRORS; do
path="dists/$SUITE/$c/binary-$ARCH/Packages"
pkgdest="$TARGET/$($DLDEST pkg "$SUITE" "$c" "$ARCH" "$m" "$path")"
if [ ! -e "$pkgdest" ]; then continue; fi
details="$($PKGDETAILS PKGS "$m" "$pkgdest" "$p")"
if [ "$details" = "$p -" ]; then
details=""
continue
fi
size="${details##* }"; details="${details% *}"
checksum="${details##* }"; details="${details% *}"
debdest="$($DLDEST deb $details)"
if get "$m/${details##* }" "$TARGET/$debdest" "$checksum" "$size"; then
echo >>"$TARGET/debootstrap/debpaths" "$p $debdest"
details="done"
break
fi
done
if [ "$details" != "" ]; then
break
fi
done
if [ "$details" != "done" ]; then
error 1 COULDNTDL "Couldn't download %s" "$p"
fi
done
}
###################################################### deb choosing support
get_debs () {
local field m1 c path pkgdest
field="$1"
shift
for m1 in $MIRRORS; do
for c in $COMPONENTS; do
path="dists/$SUITE/$c/binary-$ARCH/Packages"
pkgdest="$TARGET/$($DLDEST pkg "$SUITE" "$c" "$ARCH" "$m1" "$path")"
echo "$("$PKGDETAILS" FIELD "$field" "$m1" "$pkgdest" "$@" | sed 's/ .*//')"
done
done
}
################################################################ extraction
EXTRACTORS_SUPPORTED="dpkg-deb ar"
EXTRACT_DEB_TAR_OPTIONS=
# Native dpkg-deb based extractors
extract_dpkg_deb_field () {
local pkg field
pkg="$1"
field="$2"
dpkg-deb -f "$pkg" "$field"
}
extract_dpkg_deb_data () {
local pkg="$1"
dpkg-deb --fsys-tarfile "$pkg" | tar $EXTRACT_DEB_TAR_OPTIONS -xf - || error 1 FILEEXIST "Tried to extract package, but file already exists. Exit..."
}
# Raw .deb extractors
extract_ar_deb_field () {
local pkg field tarball
pkg="$1"
field="$2"
tarball=$(ar -t "$pkg" | grep "^control\.tar")
case "$tarball" in
control.tar.gz) cat_cmd=zcat ;;
control.tar.xz) cat_cmd=xzcat ;;
control.tar) cat_cmd=cat ;;
*) error 1 UNKNOWNCONTROLCOMP "Unknown compression type for %s in %s" "$tarball" "$pkg" ;;
esac
if in_path $cat_cmd; then
ar -p "$pkg" "$tarball" | $cat_cmd |
tar -O -xf - control ./control 2>/dev/null |
grep -i "^$field:" | sed -e 's/[^:]*: *//' | head -n 1
else
error 1 UNPACKCMDUNVL "Extracting %s requires the %s command, which is not available" "$pkg" "$cat_cmd"
fi
}
extract_ar_deb_data () {
local pkg tarball
pkg="$1"
tarball="$(ar -t "$pkg" | grep "^data.tar")"
case "$tarball" in
data.tar.gz) cat_cmd=zcat ;;
data.tar.bz2) cat_cmd=bzcat ;;
data.tar.xz) cat_cmd=xzcat ;;
data.tar) cat_cmd=cat ;;
*) error 1 UNKNOWNDATACOMP "Unknown compression type for %s in %s" "$tarball" "$pkg" ;;
esac
if in_path "$cat_cmd"; then
ar -p "$pkg" "$tarball" | "$cat_cmd" | tar $EXTRACT_DEB_TAR_OPTIONS -xf -
else
error 1 UNPACKCMDUNVL "Extracting %s requires the %s command, which is not available" "$pkg" "$cat_cmd"
fi
}
valid_extractor () {
local extractor="$1"
for E in $EXTRACTORS_SUPPORTED; do
if [ "$extractor" = "$E" ]; then
return 0
fi
done
return 1
}
choose_extractor () {
local extractor
if [ -n "$EXTRACTOR_OVERRIDE" ]; then
extractor="$EXTRACTOR_OVERRIDE"
elif in_path dpkg-deb; then
extractor="dpkg-deb"
else
extractor="ar"