| 1 | # Shared between regtest/aports-*.sh
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| 2 |
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| 3 | readonly CHROOT_DIR=_chroot/aports-build
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| 4 | readonly CHROOT_HOME_DIR=$CHROOT_DIR/home/udu
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| 5 |
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| 6 | # For he.oils.pub
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| 7 | readonly BASE_DIR=_tmp/aports-build
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| 8 |
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| 9 | # For localhost
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| 10 | readonly REPORT_DIR=_tmp/aports-report
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| 11 |
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| 12 | readonly INTERACTIVE="${INTERACTIVE:-}"
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| 13 |
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| 14 | concat-task-tsv() {
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| 15 | local config=${1:-baseline}
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| 16 | python3 devtools/tsv_concat.py \
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| 17 | $CHROOT_HOME_DIR/oils/_tmp/aports-guest/$config/*.task.tsv
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| 18 | }
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| 19 |
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| 20 | enter-rootfs() {
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| 21 | $CHROOT_DIR/enter-chroot "$@"
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| 22 | }
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| 23 |
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| 24 | enter-rootfs-user() {
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| 25 | enter-rootfs -u udu "$@"
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| 26 | }
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| 27 |
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| 28 | enter-overlayfs-user() {
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| 29 | local name=$1
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| 30 | shift
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| 31 |
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| 32 | # output ends up in the upperdir
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| 33 | #local upper="$OVERLAY_BASE_DIR/$name"
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| 34 | local upper=_chroot/overlay/upper/$name
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| 35 |
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| 36 | # workdir is scratch space
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| 37 | local work=_chroot/overlay/work
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| 38 | # "$OVERLAY_BASE_DIR/${name}_work"
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| 39 |
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| 40 | # the unified view we chroot into
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| 41 | #local merged="$OVERLAY_BASE_DIR/${name}_merged"
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| 42 | local merged=_chroot/overlay/merged
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| 43 |
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| 44 | mkdir -p $upper $work $merged
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| 45 |
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| 46 | # myoverlay is the 'source'
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| 47 | sudo mount \
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| 48 | -t overlay \
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| 49 | myoverlay \
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| 50 | -o "lowerdir=$CHROOT_DIR,upperdir=$upper,workdir=$work" \
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| 51 | "$merged"
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| 52 |
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| 53 | $merged/enter-chroot -u udu "$@"
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| 54 |
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| 55 | unmount-loop $merged
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| 56 |
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| 57 | }
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| 58 |
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| 59 | unmount-loop() {
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| 60 | local merged=$1
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| 61 |
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| 62 | # unmount it in a loop, to ensure that we can re-mount it later
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| 63 | while true; do
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| 64 | # Lazy umount seems necessary? Otherwise we get 'target is busy'
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| 65 | # I suppose processes started inside the chroot may still be running
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| 66 | sudo umount -l "$merged"
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| 67 | if ! mountpoint --quiet "$merged"; then
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| 68 | break
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| 69 | fi
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| 70 | echo "Waiting to unmount: $merged"
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| 71 | sleep 0.1
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| 72 | done
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| 73 | }
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| 74 |
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| 75 | # Note: these functions aren't used. bwrap is problematic when the container
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| 76 | # has multiple UIDs.
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| 77 | #
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| 78 | # We wanted to replace chroot with bwrap, because 'abuild rootbld' uses bwrap,
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| 79 | # and bwrap can't be run inside a chroot.
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| 80 | #
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| 81 | # But bwrap uses mount(), which requires a new user namespace, which creates a
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| 82 | # host/guest UID mapping problem.
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| 83 | #
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| 84 | # See Zulip for details
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| 85 |
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| 86 | if false; then
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| 87 | enter-rootfs() {
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| 88 | $CHROOT_DIR/enter-bwrap.sh '' root '' "$@"
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| 89 | }
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| 90 |
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| 91 | enter-rootfs-user() {
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| 92 | enter-rootfs -u udu "$@"
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| 93 | $CHROOT_DIR/enter-bwrap.sh '' udu '' "$@"
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| 94 | }
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| 95 | fi
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