add coverage.sh
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2 changed files with 329 additions and 0 deletions
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@ -97,6 +97,11 @@ The script `test.sh` compares the output of mmdebstrap with debootstrap in
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several scenarios. Since debootstrap needs superuser privileges, `test.sh`
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needs `sudo` to run.
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The script `coverage.sh` runs mmdebstrap in all kind of scenarios to execute
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all code paths of the script. It verifies its output in each scenario and
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displays the results gathered with Devel::Cover. Due to a whacky setup and to
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also test root mode, this script needs superuser privileges.
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Bugs
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====
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324
coverage.sh
Executable file
324
coverage.sh
Executable file
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@ -0,0 +1,324 @@
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#!/bin/sh
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set -eu
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mkdir -p cover_db
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if mountpoint -q -- cover_db; then
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sudo umount cover_db
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fi
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# here is something crazy:
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# as we run mmdebstrap, the process ends up being run by different users with
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# different privileges (real or fake). But for being able to collect
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# Devel::Cover data, they must all share a single directory. The only way that
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# I found to make this work is to mount the database directory with a
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# filesystem that doesn't support ownership information at all and a umask that
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# gives read/write access to everybody.
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# https://github.com/pjcj/Devel--Cover/issues/223
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fallocate -l 10M cover_db.img
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sudo mkfs.vfat cover_db.img
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sudo mount -o loop,umask=000 cover_db.img cover_db
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nativearch=$(dpkg --print-architecture)
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./make_mirror.sh
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cd mirror
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python3 -m http.server 8000 2>/dev/null & pid=$!
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cd -
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# wait for the server to start
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sleep 1
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if ! kill -0 $pid; then
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echo "failed to start http server"
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exit 1
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fi
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echo "running http server with pid $pid"
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# choose the timestamp of the unstable Release file, so that we get
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# reproducible results for the same mirror timestamp
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export SOURCE_DATE_EPOCH=$(date --date="$(grep-dctrl -s Date -n '' mirror/dists/unstable/Release)" +%s)
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CMD="perl -MDevel::Cover=-silent,-nogcov ./mmdebstrap"
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# create directory in sudo mode
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sudo $CMD --mode=root --variant=apt unstable ./debian-unstable "http://localhost:8000"
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sudo tar -C ./debian-unstable --one-file-system -c . | tar -t | sort > tar1.txt
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sudo rm -r --one-file-system ./debian-unstable
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# create a tarball
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$CMD --mode=unshare --variant=apt unstable unstable-chroot.tar "http://localhost:8000"
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tar -tf unstable-chroot.tar | sort > tar2.txt
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diff -u tar1.txt tar2.txt
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rm unstable-chroot.tar
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# read sources.list from standard input and write to standard output
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echo "deb http://localhost:8000 unstable main" | $CMD --variant=apt > unstable-chroot.tar
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tar -tf unstable-chroot.tar | sort > tar2.txt
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diff -u tar1.txt tar2.txt
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rm unstable-chroot.tar
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# test aptopt
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sudo $CMD --mode=root --variant=apt --aptopt="Acquire::Check-Valid-Until false" unstable ./debian-unstable "http://localhost:8000"
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echo "Acquire::Check-Valid-Until false;" | cmp ./debian-unstable/etc/apt/apt.conf.d/99mmdebstrap -
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sudo rm ./debian-unstable/etc/apt/apt.conf.d/99mmdebstrap
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sudo tar -C ./debian-unstable --one-file-system -c . | tar -t | sort > tar2.txt
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diff -u tar1.txt tar2.txt
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sudo rm -r --one-file-system ./debian-unstable
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# test dpkgopt
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sudo $CMD --mode=root --variant=apt --dpkgopt="path-exclude=/usr/share/doc/*" unstable ./debian-unstable "http://localhost:8000"
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echo "path-exclude=/usr/share/doc/*" | cmp ./debian-unstable/etc/dpkg/dpkg.cfg.d/99mmdebstrap -
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sudo rm ./debian-unstable/etc/dpkg/dpkg.cfg.d/99mmdebstrap
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sudo tar -C ./debian-unstable --one-file-system -c . | tar -t | sort > tar2.txt
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grep -v '^./usr/share/doc/.' tar1.txt | diff -u - tar2.txt
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sudo rm -r --one-file-system ./debian-unstable
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# test --include
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sudo $CMD --mode=root --variant=apt --include=doc-debian unstable ./debian-unstable "http://localhost:8000"
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sudo rm ./debian-unstable/usr/share/doc-base/debian-*
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sudo rm -r ./debian-unstable/usr/share/doc/debian
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sudo rm -r ./debian-unstable/usr/share/doc/doc-debian
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sudo rm ./debian-unstable/var/log/apt/eipp.log.xz
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sudo rm ./debian-unstable/var/lib/dpkg/info/doc-debian.list
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sudo rm ./debian-unstable/var/lib/dpkg/info/doc-debian.md5sums
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sudo tar -C ./debian-unstable --one-file-system -c . | tar -t | sort > tar2.txt
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diff -u tar1.txt tar2.txt
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sudo rm -r --one-file-system ./debian-unstable
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# test all variants
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for variant in essential apt required minbase buildd important debootstrap - standard; do
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sudo $CMD --mode=root --variant=$variant unstable ./debian-unstable "http://localhost:8000"
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sudo tar -C ./debian-unstable --one-file-system -c . | tar -t | sort > "$variant.txt"
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sudo rm -r --one-file-system ./debian-unstable
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# check if the other modes produce the same result in each variant
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for mode in unshare fakechroot proot; do
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# fontconfig doesn't install reproducibly because differences
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# in /var/cache/fontconfig/. See
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# https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=864082
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if [ "$variant" = standard ]; then
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continue
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fi
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# FIXME: cannot test fakechroot or proot in any other variant
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# than essential because of
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# https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=909637
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case "$mode" in
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fakechroot|proot)
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if [ "$variant" != "essential" ]; then
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continue
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fi
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;;
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esac
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$CMD --mode=$mode --variant=$variant unstable unstable-chroot.tar "http://localhost:8000"
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# in fakechroot mode, we use a fake ldconfig, so we have to
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# artificially add some files
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{ tar -tf unstable-chroot.tar;
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[ "$mode" = "fakechroot" ] && printf "./etc/ld.so.cache\n./var/cache/ldconfig/\n";
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} | sort | diff -u "./$variant.txt" -
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rm unstable-chroot.tar
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# Devel::Cover doesn't survive mmdebstrap re-exec-ing itself
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# with fakechroot, thus, we do an additional run where we
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# explicitly run mmdebstrap with fakechroot from the start
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if [ "$mode" = "fakechroot" ]; then
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fakechroot fakeroot $CMD --mode=$mode --variant=$variant unstable unstable-chroot.tar "http://localhost:8000"
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{ tar -tf unstable-chroot.tar;
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printf "./etc/ld.so.cache\n./var/cache/ldconfig/\n";
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} | sort | diff -u "./$variant.txt" -
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rm unstable-chroot.tar
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fi
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done
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# some variants are equal and some are strict superset of the last
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# special case of the buildd variant: nothing is a superset of it
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case "$variant" in
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essential) ;; # nothing to compare it to
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apt)
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[ $(comm -23 essential.txt apt.txt | wc -l) -eq 0 ]
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[ $(comm -13 essential.txt apt.txt | wc -l) -gt 0 ]
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rm essential.txt
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;;
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required)
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[ $(comm -23 apt.txt required.txt | wc -l) -eq 0 ]
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[ $(comm -13 apt.txt required.txt | wc -l) -gt 0 ]
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rm apt.txt
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;;
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minbase) # equal to required
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cmp required.txt minbase.txt
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rm required.txt
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;;
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buildd)
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[ $(comm -23 minbase.txt buildd.txt | wc -l) -eq 0 ]
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[ $(comm -13 minbase.txt buildd.txt | wc -l) -gt 0 ]
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rm buildd.txt # we need minbase.txt but not buildd.txt
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;;
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important)
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[ $(comm -23 minbase.txt important.txt | wc -l) -eq 0 ]
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[ $(comm -13 minbase.txt important.txt | wc -l) -gt 0 ]
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rm minbase.txt
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;;
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debootstrap) # equal to important
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cmp important.txt debootstrap.txt
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rm important.txt
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;;
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-) # equal to debootstrap
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cmp debootstrap.txt ./-.txt
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rm debootstrap.txt
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;;
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standard)
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[ $(comm -23 ./-.txt standard.txt | wc -l) -eq 0 ]
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[ $(comm -13 ./-.txt standard.txt | wc -l) -gt 0 ]
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rm ./-.txt standard.txt
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;;
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*) exit 1;;
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esac
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done
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# test extract variant also with chrootless mode
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for mode in root unshare fakechroot proot chrootless; do
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prefix=
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if [ "$mode" = "root" ]; then
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prefix=sudo
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fi
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$prefix $CMD --mode=$mode --variant=extract --include=doc-debian unstable ./debian-unstable "http://localhost:8000"
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# delete contents of doc-debian
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sudo rm ./debian-unstable/usr/share/doc-base/debian-*
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sudo rm -r ./debian-unstable/usr/share/doc/debian
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sudo rm -r ./debian-unstable/usr/share/doc/doc-debian
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# delete real files
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sudo rm ./debian-unstable/etc/apt/sources.list
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sudo rm ./debian-unstable/etc/fstab
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sudo rm ./debian-unstable/etc/hostname
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sudo rm ./debian-unstable/etc/resolv.conf
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sudo rm ./debian-unstable/var/lib/dpkg/status
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# delete symlinks
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sudo rm ./debian-unstable/libx32
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sudo rm ./debian-unstable/lib64
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sudo rm ./debian-unstable/lib32
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sudo rm ./debian-unstable/sbin
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sudo rm ./debian-unstable/bin
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sudo rm ./debian-unstable/lib
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# delete ./dev (files might exist or not depending on the mode)
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sudo rm -f ./debian-unstable/dev/console
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sudo rm -f ./debian-unstable/dev/fd
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sudo rm -f ./debian-unstable/dev/full
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sudo rm -f ./debian-unstable/dev/null
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sudo rm -f ./debian-unstable/dev/ptmx
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sudo rm -f ./debian-unstable/dev/random
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sudo rm -f ./debian-unstable/dev/stderr
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sudo rm -f ./debian-unstable/dev/stdin
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sudo rm -f ./debian-unstable/dev/stdout
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sudo rm -f ./debian-unstable/dev/tty
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sudo rm -f ./debian-unstable/dev/urandom
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sudo rm -f ./debian-unstable/dev/zero
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# in chrootless mode, there is more to remove
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if [ "$mode" = "chrootless" ]; then
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sudo rm ./debian-unstable/var/log/apt/eipp.log.xz
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sudo rm ./debian-unstable/var/lib/dpkg/triggers/Lock
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sudo rm ./debian-unstable/var/lib/dpkg/triggers/Unincorp
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sudo rm ./debian-unstable/var/lib/dpkg/status-old
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sudo rm ./debian-unstable/var/lib/dpkg/info/format
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sudo rm ./debian-unstable/var/lib/dpkg/info/doc-debian.md5sums
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sudo rm ./debian-unstable/var/lib/dpkg/info/doc-debian.list
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fi
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# the rest should be empty directories that we can rmdir recursively
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sudo find ./debian-unstable -depth -print0 | xargs -0 sudo rmdir
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done
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# the custom variant only works with chrootless mode
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$CMD --mode=chrootless --variant=custom --include=doc-debian unstable ./debian-unstable "http://localhost:8000"
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# delete contents of doc-debian
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sudo rm ./debian-unstable/usr/share/doc-base/debian-*
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sudo rm -r ./debian-unstable/usr/share/doc/debian
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sudo rm -r ./debian-unstable/usr/share/doc/doc-debian
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# delete real files
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sudo rm ./debian-unstable/etc/apt/sources.list
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sudo rm ./debian-unstable/etc/fstab
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sudo rm ./debian-unstable/etc/hostname
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sudo rm ./debian-unstable/etc/resolv.conf
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sudo rm ./debian-unstable/var/lib/dpkg/status
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# delete symlinks
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sudo rm ./debian-unstable/libx32
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sudo rm ./debian-unstable/lib64
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sudo rm ./debian-unstable/lib32
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sudo rm ./debian-unstable/sbin
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sudo rm ./debian-unstable/bin
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sudo rm ./debian-unstable/lib
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# in chrootless mode, there is more to remove
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sudo rm ./debian-unstable/var/log/apt/eipp.log.xz
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sudo rm ./debian-unstable/var/lib/dpkg/triggers/Lock
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sudo rm ./debian-unstable/var/lib/dpkg/triggers/Unincorp
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sudo rm ./debian-unstable/var/lib/dpkg/status-old
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sudo rm ./debian-unstable/var/lib/dpkg/info/format
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sudo rm ./debian-unstable/var/lib/dpkg/info/doc-debian.md5sums
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sudo rm ./debian-unstable/var/lib/dpkg/info/doc-debian.list
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# the rest should be empty directories that we can rmdir recursively
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sudo find ./debian-unstable -depth -print0 | xargs -0 sudo rmdir
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# test foreign architecture with all modes
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# create directory in sudo mode
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# FIXME: once fakechroot and proot are fixed, we have to test more variants
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# than just essential
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sudo $CMD --mode=root --variant=essential unstable ./debian-unstable "http://localhost:8000"
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sudo tar -C ./debian-unstable --one-file-system -c . | tar -t | sort > tar1.txt
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sudo rm -r --one-file-system ./debian-unstable
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# FIXME: once fakechroot and proot are fixed, we can switch to variant=apt
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# FIXME: cannot test fakechroot or proot because of
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# https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=909637
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for mode in root unshare fakechroot proot; do
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prefix=
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if [ "$mode" = "root" ]; then
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prefix=sudo
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elif [ "$mode" = "fakechroot" ]; then
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# Devel::Cover doesn't survive mmdebstrap re-exec-ing itself
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# with fakechroot, thus, we explicitly run mmdebstrap with
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# fakechroot from the start
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prefix="fakechroot fakeroot"
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fi
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$prefix $CMD --mode=$mode --variant=essential --architectures=armhf unstable ./debian-unstable.tar "http://localhost:8000"
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# we ignore differences between architectures by ignoring some files
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# and renaming others
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# in fakechroot mode, we use a fake ldconfig, so we have to
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# artificially add some files
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# in proot mode, some extra files are put there by proot
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{ tar -tf ./debian-unstable.tar \
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| grep -v '^./usr/lib/ld-linux-armhf.so.3$' \
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| grep -v '^./usr/lib/arm-linux-gnueabihf/ld-linux.so.3$' \
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| grep -v '^./usr/lib/arm-linux-gnueabihf/ld-linux-armhf.so.3$' \
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| sed 's/arm-linux-gnueabihf/x86_64-linux-gnu/' \
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| sed 's/armhf/amd64/';
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[ "$mode" = "fakechroot" ] && printf "./etc/ld.so.cache\n./var/cache/ldconfig/\n";
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} | sort > tar2.txt
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{ cat tar1.txt \
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| grep -v '^./usr/bin/i386$' \
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| grep -v '^./usr/bin/x86_64$' \
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| grep -v '^./usr/lib64/ld-linux-x86-64.so.2$' \
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| grep -v '^./usr/lib/x86_64-linux-gnu/ld-linux-x86-64.so.2$' \
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| grep -v '^./usr/lib/x86_64-linux-gnu/libmvec-2.27.so$' \
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| grep -v '^./usr/lib/x86_64-linux-gnu/libmvec.so.1$' \
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| grep -v '^./usr/share/man/man8/i386.8.gz$' \
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| grep -v '^./usr/share/man/man8/x86_64.8.gz$';
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[ "$mode" = "proot" ] && printf "./etc/ld.so.preload\n./host-rootfs/\n";
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} | sort | diff -u - tar2.txt
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sudo rm ./debian-unstable.tar
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done
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# test if auto mode picks the right mode
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kill $pid
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wait $pid || true
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cover -nogcov -report html_basic
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mkdir -p report
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for f in common.js coverage.html cover.css css.js mmdebstrap--branch.html mmdebstrap--condition.html mmdebstrap.html mmdebstrap--subroutine.html standardista-table-sorting.js; do
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cp -a cover_db/$f report
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done
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sudo umount cover_db
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sudo rmdir cover_db
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#rm tar1.txt tar2.txt
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