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sdk-manage: Compare snapshot to recent uninstalled #114

merged 1 commit into from May 3, 2019
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@@ -333,8 +333,9 @@ GLOBAL OPTIONS

Build target snapshot is not reset automatically when the original target is
changed just by removing packages. Package installation or update is needed to
trigger the automatic reset.
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changed just by removing packages via plain RPM usage. Either use zypper for
all package operations or use 'mb2 build-requires reset' to ensure snapshot is

@@ -1578,23 +1578,39 @@ target_snapshot_needs_reset() {

local snapshot_time=
snapshot_time=$(object_config_get "target:$snapshot" "$SNAPSHOT_TIME_KEY") || return
# Convert date to unix seconds
snapshot_time=$(date --date "$snapshot_time" +%s) || return

# Try to avoid querying RPM database as it takes considerable amount of time
tmpfile=$(mktemp) || return
touch --date "$snapshot_time" "$tmpfile" || return
# --date "@value" passes value as unix seconds
touch --date "@$snapshot_time" "$tmpfile" || return
local newer=
newer=$(find "$MER_TARGETS/$original/var/lib/rpm" -newer "$tmpfile" -print -quit) || return
if [[ ! $newer ]]; then
return 1

# TODO how to determine recent package removal?
local most_recent_install_time=
most_recent_install_time=$(set -o pipefail; rpm --root="$MER_TARGETS/$original" -qa \
--queryformat '%{installtime}\n' |sort -n |tail -n1) || return
local snapshot_time_s=$(date --date "$snapshot_time" +%s) || return

(( most_recent_install_time > snapshot_time_s ))
# Compare values in unix seconds
(( most_recent_install_time > snapshot_time )) && return

# The rpm database does not know about the most recent package removal, so
# parse the zypper install log. zypp/history looks like this:
# 2019-02-27 16:39:18|remove |droid-hal-mydevice-tools|0.0.6-201902271629|armv7hl|user@pc|
# But could also look like this:
# 2019-02-27 16:39:18|install|remove-my-pkg|0.0.6-201902271629|armv7hl|user@pc|
local most_recent_removal_time=$(set -o pipefail; \
tac "$MER_TARGETS/$original/var/log/zypp/history" \
|cut -d "|" -f "1,2" \
|grep -m 1 "|remove" \
|cut -d "|" -f 1 \
) || return
most_recent_removal_time=$(date --date "$most_recent_removal_time" +%s) || return
# Compare values in unix seconds
(( most_recent_removal_time > snapshot_time )) && return

reserve_target() {