mirror of
https://github.com/morgan9e/systemd
synced 2026-04-14 08:25:20 +09:00
test: Extend systemd-sysext tests to cover the mutability feature
This commit is contained in:
Krzesimir Nowak
@@ -808,7 +808,7 @@ prep_root() {
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local r=${1}; shift
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local h=${1}; shift
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mkdir -p "${r}${h}" "${r}/usr/lib" "${r}/var/lib/extensions"
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mkdir -p "${r}${h}" "${r}/usr/lib" "${r}/var/lib/extensions" "${r}/var/lib/extensions.mutable"
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}
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gen_os_release() {
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@@ -835,6 +835,26 @@ gen_test_ext_image() {
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touch "${d}${h}/preexisting-file-in-extension-image"
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}
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hierarchy_ext_mut_path() {
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local r=${1}; shift
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local h=${1}; shift
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# /a/b/c -> a.b.c
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local n=${h}
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n="${n##+(/)}"
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n="${n%%+(/)}"
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n="${n//\//.}"
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printf '%s' "${r}/var/lib/extensions.mutable/${n}"
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}
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prep_ext_mut() {
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local p=${1}; shift
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mkdir -p "${p}"
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touch "${p}/preexisting-file-in-extensions-mutable"
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}
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make_ro() {
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local r=${1}; shift
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local h=${1}; shift
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@@ -861,6 +881,7 @@ prep_ro_hierarchy() {
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# extra args:
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# "e" for checking for the preexisting file in extension
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# "h" for checking for the preexisting file in hierarchy
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# "u" for checking for the preexisting file in upperdir
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check_usual_suspects() {
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local root=${1}; shift
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local hierarchy=${1}; shift
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@@ -868,11 +889,11 @@ check_usual_suspects() {
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local arg
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# shellcheck disable=SC2034 # the variables below are used indirectly
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local e='' h=''
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local e='' h='' u=''
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for arg; do
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case ${arg} in
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e|h)
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e|h|u)
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local -n v=${arg}
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v=x
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unset -n v
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@@ -887,6 +908,7 @@ check_usual_suspects() {
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local pairs=(
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e:preexisting-file-in-extension-image
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h:preexisting-file-in-hierarchy
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u:preexisting-file-in-extensions-mutable
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)
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local pair name file desc full_path
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for pair in "${pairs[@]}"; do
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@@ -925,9 +947,11 @@ check_usual_suspects_after_unmerge() {
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}
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#
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# simple case, read-only hierarchy
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# no extension data in /var/lib/extensions.mutable/…, read-only hierarchy,
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# mutability disabled by default
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#
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# read-only merged
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#
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@@ -955,7 +979,10 @@ check_usual_suspects_after_unmerge "${fake_root}" "${hierarchy}" h
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touch "${fake_root}${hierarchy}/should-still-fail-on-read-only-fs" && die "${fake_root}${hierarchy} is not read-only after unmerge"
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#
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# simple case, mutable hierarchy
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# no extension data in /var/lib/extensions.mutable/…, mutable hierarchy,
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# mutability disabled by default
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#
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# read-only merged
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#
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@@ -984,7 +1011,10 @@ touch "${fake_root}${hierarchy}/should-succeed-on-mutable-fs-again" || die "${fa
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#
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# simple case, no hierarchy either
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# no extension data in /var/lib/extensions.mutable/…, no hierarchy either,
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# mutability disabled by default
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#
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# read-only merged
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#
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@@ -1008,7 +1038,10 @@ check_usual_suspects_after_unmerge "${fake_root}" "${hierarchy}"
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#
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# simple case, an empty hierarchy
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# no extension data in /var/lib/extensions.mutable/…, an empty hierarchy,
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# mutability disabled by default
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#
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# read-only merged
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#
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@@ -1034,6 +1067,415 @@ SYSTEMD_SYSEXT_HIERARCHIES="${hierarchy}" systemd-sysext --root="${fake_root}" u
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check_usual_suspects_after_unmerge "${fake_root}" "${hierarchy}"
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#
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# extension data in /var/lib/extensions.mutable/…, read-only hierarchy, mutability disabled-by-default
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#
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# read-only merged
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#
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fake_root=${fake_roots_dir}/simple-mutable-with-read-only-hierarchy-disabled
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hierarchy=/usr
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prep_root "${fake_root}" "${hierarchy}"
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gen_os_release "${fake_root}"
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gen_test_ext_image "${fake_root}" "${hierarchy}"
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ext_data_path=$(hierarchy_ext_mut_path "${fake_root}" "${hierarchy}")
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prep_ext_mut "${ext_data_path}"
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prep_ro_hierarchy "${fake_root}" "${hierarchy}"
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touch "${fake_root}${hierarchy}/should-fail-on-read-only-fs" && die "${fake_root}${hierarchy} is not read-only"
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# run systemd-sysext
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SYSTEMD_SYSEXT_HIERARCHIES="${hierarchy}" systemd-sysext --root="${fake_root}" merge
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touch "${fake_root}${hierarchy}/should-be-read-only" && die "${fake_root}${hierarchy} is not read-only"
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check_usual_suspects_after_merge "${fake_root}" "${hierarchy}" e h
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SYSTEMD_SYSEXT_HIERARCHIES="${hierarchy}" systemd-sysext --root="${fake_root}" unmerge
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check_usual_suspects_after_unmerge "${fake_root}" "${hierarchy}" h
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#
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# extension data in /var/lib/extensions.mutable/…, read-only hierarchy, auto-mutability
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#
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# mutable merged
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#
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fake_root=${fake_roots_dir}/simple-mutable-with-read-only-hierarchy
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hierarchy=/usr
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prep_root "${fake_root}" "${hierarchy}"
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gen_os_release "${fake_root}"
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gen_test_ext_image "${fake_root}" "${hierarchy}"
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ext_data_path=$(hierarchy_ext_mut_path "${fake_root}" "${hierarchy}")
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prep_ext_mut "${ext_data_path}"
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prep_ro_hierarchy "${fake_root}" "${hierarchy}"
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touch "${fake_root}${hierarchy}/should-fail-on-read-only-fs" && die "${fake_root}${hierarchy} is not read-only"
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# run systemd-sysext
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SYSTEMD_SYSEXT_HIERARCHIES="${hierarchy}" systemd-sysext --root="${fake_root}" --mutable=auto merge
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touch "${fake_root}${hierarchy}/now-is-mutable" || die "${fake_root}${hierarchy} is not mutable"
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check_usual_suspects_after_merge "${fake_root}" "${hierarchy}" e h u
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test -f "${ext_data_path}/now-is-mutable" || die "now-is-mutable is not stored in expected location"
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SYSTEMD_SYSEXT_HIERARCHIES="${hierarchy}" systemd-sysext --root="${fake_root}" unmerge
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check_usual_suspects_after_unmerge "${fake_root}" "${hierarchy}" h
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test -f "${ext_data_path}/now-is-mutable" || die "now-is-mutable disappeared from writable storage after unmerge"
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test ! -f "${fake_root}${hierarchy}/now-is-mutable" || die "now-is-mutable did not disappear from hierarchy after unmerge"
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#
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# extension data in /var/lib/extensions.mutable/…, missing hierarchy,
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# auto-mutability
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#
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# mutable merged
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#
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fake_root=${fake_roots_dir}/simple-mutable-with-missing-hierarchy
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hierarchy=/opt
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prep_root "${fake_root}" "${hierarchy}"
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rmdir "${fake_root}/${hierarchy}"
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gen_os_release "${fake_root}"
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gen_test_ext_image "${fake_root}" "${hierarchy}"
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ext_data_path=$(hierarchy_ext_mut_path "${fake_root}" "${hierarchy}")
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prep_ext_mut "${ext_data_path}"
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# run systemd-sysext
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SYSTEMD_SYSEXT_HIERARCHIES="${hierarchy}" systemd-sysext --root="${fake_root}" --mutable=auto merge
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touch "${fake_root}${hierarchy}/now-is-mutable" || die "${fake_root}${hierarchy} is not mutable"
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check_usual_suspects_after_merge "${fake_root}" "${hierarchy}" e u
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test -f "${ext_data_path}/now-is-mutable" || die "now-is-mutable is not stored in expected location"
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SYSTEMD_SYSEXT_HIERARCHIES="${hierarchy}" systemd-sysext --root="${fake_root}" unmerge
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check_usual_suspects_after_unmerge "${fake_root}" "${hierarchy}"
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test -f "${ext_data_path}/now-is-mutable" || die "now-is-mutable disappeared from writable storage after unmerge"
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test ! -f "${fake_root}${hierarchy}/now-is-mutable" || die "now-is-mutable did not disappear from hierarchy after unmerge"
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#
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# extension data in /var/lib/extensions.mutable/…, empty hierarchy, auto-mutability
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#
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# mutable merged
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#
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fake_root=${fake_roots_dir}/simple-mutable-with-empty-hierarchy
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hierarchy=/opt
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prep_root "${fake_root}" "${hierarchy}"
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gen_os_release "${fake_root}"
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gen_test_ext_image "${fake_root}" "${hierarchy}"
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ext_data_path=$(hierarchy_ext_mut_path "${fake_root}" "${hierarchy}")
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prep_ext_mut "${ext_data_path}"
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make_ro "${fake_root}" "${hierarchy}"
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touch "${fake_root}${hierarchy}/should-fail-on-read-only-fs" && die "${fake_root}${hierarchy} is not read-only"
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# run systemd-sysext
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SYSTEMD_SYSEXT_HIERARCHIES="${hierarchy}" systemd-sysext --root="${fake_root}" --mutable=auto merge
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touch "${fake_root}${hierarchy}/now-is-mutable" || die "${fake_root}${hierarchy} is not mutable"
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check_usual_suspects_after_merge "${fake_root}" "${hierarchy}" e u
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test -f "${ext_data_path}/now-is-mutable" || die "now-is-mutable is not stored in expected location"
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SYSTEMD_SYSEXT_HIERARCHIES="${hierarchy}" systemd-sysext --root="${fake_root}" unmerge
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check_usual_suspects_after_unmerge "${fake_root}" "${hierarchy}"
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test -f "${ext_data_path}/now-is-mutable" || die "now-is-mutable disappeared from writable storage after unmerge"
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test ! -f "${fake_root}${hierarchy}/now-is-mutable" || die "now-is-mutable did not disappear from hierarchy after unmerge"
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#
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# /var/lib/extensions.mutable/… is a symlink to /some/other/dir, read-only
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# hierarchy, auto-mutability
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#
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# mutable merged
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#
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fake_root=${fake_roots_dir}/mutable-symlink-with-read-only-hierarchy
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hierarchy=/usr
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prep_root "${fake_root}" "${hierarchy}"
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gen_os_release "${fake_root}"
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gen_test_ext_image "${fake_root}" "${hierarchy}"
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# generate extension writable data
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ext_data_path=$(hierarchy_ext_mut_path "${fake_root}" "${hierarchy}")
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real_ext_dir="${fake_root}/upperdir"
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prep_ext_mut "${real_ext_dir}"
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ln -sfTr "${real_ext_dir}" "${ext_data_path}"
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prep_ro_hierarchy "${fake_root}" "${hierarchy}"
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touch "${fake_root}${hierarchy}/should-fail-on-read-only-fs" && die "${fake_root}${hierarchy} is not read-only"
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# run systemd-sysext
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SYSTEMD_SYSEXT_HIERARCHIES="${hierarchy}" systemd-sysext --root="${fake_root}" --mutable=auto merge
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touch "${fake_root}${hierarchy}/now-is-mutable" || die "${fake_root}${hierarchy} is not mutable"
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check_usual_suspects_after_merge "${fake_root}" "${hierarchy}" e h u
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test -f "${ext_data_path}/now-is-mutable" || die "now-is-mutable is not stored in expected location"
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test -f "${real_ext_dir}/now-is-mutable" || die "now-is-mutable is not stored in expected location"
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SYSTEMD_SYSEXT_HIERARCHIES="${hierarchy}" systemd-sysext --root="${fake_root}" unmerge
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check_usual_suspects_after_unmerge "${fake_root}" "${hierarchy}" h
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test -f "${ext_data_path}/now-is-mutable" || die "now-is-mutable disappeared from writable storage after unmerge"
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test -f "${real_ext_dir}/now-is-mutable" || die "now-is-mutable disappeared from writable storage after unmerge"
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test ! -f "${fake_root}${hierarchy}/now-is-mutable" || die "now-is-mutable did not disappear from hierarchy after unmerge"
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#
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# /var/lib/extensions.mutable/… is a symlink to the hierarchy itself, auto-mutability
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#
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# for this to work, hierarchy must be mutable
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#
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# mutable merged
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#
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fake_root=${fake_roots_dir}/mutable-self-upper
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hierarchy=/usr
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prep_root "${fake_root}" "${hierarchy}"
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gen_os_release "${fake_root}"
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gen_test_ext_image "${fake_root}" "${hierarchy}"
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# generate extension writable data
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ext_data_path=$(hierarchy_ext_mut_path "${fake_root}" "${hierarchy}")
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real_ext_dir="${fake_root}${hierarchy}"
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prep_ext_mut "${real_ext_dir}"
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ln -sfTr "${real_ext_dir}" "${ext_data_path}"
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# prepare writable hierarchy
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touch "${fake_root}${hierarchy}/preexisting-file-in-hierarchy"
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# run systemd-sysext
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SYSTEMD_SYSEXT_HIERARCHIES="${hierarchy}" systemd-sysext --root="${fake_root}" --mutable=auto merge
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touch "${fake_root}${hierarchy}/now-is-mutable" || die "${fake_root}${hierarchy} is not mutable"
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check_usual_suspects_after_merge "${fake_root}" "${hierarchy}" e h u
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test -f "${ext_data_path}/now-is-mutable" || die "now-is-mutable is not stored in expected location"
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test -f "${real_ext_dir}/now-is-mutable" || die "now-is-mutable is not stored in expected location"
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SYSTEMD_SYSEXT_HIERARCHIES="${hierarchy}" systemd-sysext --root="${fake_root}" unmerge
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check_usual_suspects_after_unmerge "${fake_root}" "${hierarchy}" h u
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test -f "${ext_data_path}/now-is-mutable" || die "now-is-mutable disappeared from writable storage after unmerge"
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test -f "${real_ext_dir}/now-is-mutable" || die "now-is-mutable disappeared from writable storage after unmerge"
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#
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# /var/lib/extensions.mutable/… is a symlink to the hierarchy itself, which is
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# read-only, auto-mutability
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#
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# expecting a failure here
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#
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fake_root=${fake_roots_dir}/failure-self-upper-ro
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hierarchy=/usr
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prep_root "${fake_root}" "${hierarchy}"
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gen_os_release "${fake_root}"
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gen_test_ext_image "${fake_root}" "${hierarchy}"
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# generate extension writable data
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ext_data_path=$(hierarchy_ext_mut_path "${fake_root}" "${hierarchy}")
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real_ext_dir="${fake_root}${hierarchy}"
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prep_ext_mut "${real_ext_dir}"
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ln -sfTr "${real_ext_dir}" "${ext_data_path}"
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prep_ro_hierarchy "${fake_root}" "${hierarchy}"
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# run systemd-sysext
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SYSTEMD_SYSEXT_HIERARCHIES="${hierarchy}" systemd-sysext --root="${fake_root}" --mutable=auto merge || die "expected merge to fail"
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#
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# /var/lib/extensions.mutable/… is a dangling symlink, auto-mutability
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#
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# read-only merged
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#
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fake_root=${fake_roots_dir}/read-only-mutable-dangling-symlink
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hierarchy=/usr
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prep_root "${fake_root}" "${hierarchy}"
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gen_os_release "${fake_root}"
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gen_test_ext_image "${fake_root}" "${hierarchy}"
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ext_data_path=$(hierarchy_ext_mut_path "${fake_root}" "${hierarchy}")
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ln -sfTr "/should/not/exist/" "${ext_data_path}"
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prep_ro_hierarchy "${fake_root}" "${hierarchy}"
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touch "${fake_root}${hierarchy}/should-fail-on-read-only-fs" && die "${fake_root}${hierarchy} is not read-only"
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# run systemd-sysext
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SYSTEMD_SYSEXT_HIERARCHIES="${hierarchy}" systemd-sysext --root="${fake_root}" --mutable=auto merge
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touch "${fake_root}${hierarchy}/should-still-fail-on-read-only-fs" && die "${fake_root}${hierarchy} is not read-only"
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check_usual_suspects_after_merge "${fake_root}" "${hierarchy}" e h
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SYSTEMD_SYSEXT_HIERARCHIES="${hierarchy}" systemd-sysext --root="${fake_root}" unmerge
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check_usual_suspects_after_unmerge "${fake_root}" "${hierarchy}" h
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#
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# /var/lib/extensions.mutable/… exists, but it's ignored, mutability disabled explicitly
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#
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# read-only merged
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#
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fake_root=${fake_roots_dir}/disabled
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hierarchy=/usr
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prep_root "${fake_root}" "${hierarchy}"
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gen_os_release "${fake_root}"
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gen_test_ext_image "${fake_root}" "${hierarchy}"
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ext_data_path=$(hierarchy_ext_mut_path "${fake_root}" "${hierarchy}")
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prep_ext_mut "${ext_data_path}"
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prep_ro_hierarchy "${fake_root}" "${hierarchy}"
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touch "${fake_root}${hierarchy}/should-fail-on-read-only-fs" && die "${fake_root}${hierarchy} is not read-only"
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# run systemd-sysext
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SYSTEMD_SYSEXT_HIERARCHIES="${hierarchy}" systemd-sysext --root="${fake_root}" --mutable=no merge
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||||
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||||
touch "${fake_root}${hierarchy}/should-still-fail-on-read-only-fs" && die "${fake_root}${hierarchy} is not read-only"
|
||||
|
||||
check_usual_suspects_after_merge "${fake_root}" "${hierarchy}" e h
|
||||
|
||||
SYSTEMD_SYSEXT_HIERARCHIES="${hierarchy}" systemd-sysext --root="${fake_root}" unmerge
|
||||
|
||||
check_usual_suspects_after_unmerge "${fake_root}" "${hierarchy}" h
|
||||
|
||||
|
||||
#
|
||||
# /var/lib/extensions.mutable/… exists, but it's imported instead
|
||||
#
|
||||
# read-only merged
|
||||
#
|
||||
|
||||
|
||||
fake_root=${fake_roots_dir}/imported
|
||||
hierarchy=/usr
|
||||
|
||||
prep_root "${fake_root}" "${hierarchy}"
|
||||
gen_os_release "${fake_root}"
|
||||
gen_test_ext_image "${fake_root}" "${hierarchy}"
|
||||
|
||||
ext_data_path=$(hierarchy_ext_mut_path "${fake_root}" "${hierarchy}")
|
||||
prep_ext_mut "${ext_data_path}"
|
||||
|
||||
prep_ro_hierarchy "${fake_root}" "${hierarchy}"
|
||||
|
||||
touch "${fake_root}${hierarchy}/should-fail-on-read-only-fs" && die "${fake_root}${hierarchy} is not read-only"
|
||||
|
||||
# run systemd-sysext
|
||||
SYSTEMD_SYSEXT_HIERARCHIES="${hierarchy}" systemd-sysext --root="${fake_root}" --mutable=import merge
|
||||
|
||||
touch "${fake_root}${hierarchy}/should-still-fail-on-read-only-fs" && die "${fake_root}${hierarchy} is not read-only"
|
||||
|
||||
check_usual_suspects_after_merge "${fake_root}" "${hierarchy}" e h u
|
||||
|
||||
SYSTEMD_SYSEXT_HIERARCHIES="${hierarchy}" systemd-sysext --root="${fake_root}" unmerge
|
||||
|
||||
check_usual_suspects_after_unmerge "${fake_root}" "${hierarchy}" h
|
||||
|
||||
|
||||
#
|
||||
# /var/lib/extensions.mutable/… does not exist, but mutability is enabled
|
||||
# explicitly
|
||||
#
|
||||
# mutable merged
|
||||
#
|
||||
|
||||
|
||||
fake_root=${fake_roots_dir}/enabled
|
||||
hierarchy=/usr
|
||||
|
||||
prep_root "${fake_root}" "${hierarchy}"
|
||||
gen_os_release "${fake_root}"
|
||||
gen_test_ext_image "${fake_root}" "${hierarchy}"
|
||||
|
||||
ext_data_path=$(hierarchy_ext_mut_path "${fake_root}" "${hierarchy}")
|
||||
|
||||
prep_ro_hierarchy "${fake_root}" "${hierarchy}"
|
||||
|
||||
touch "${fake_root}${hierarchy}/should-fail-on-read-only-fs" && die "${fake_root}${hierarchy} is not read-only"
|
||||
|
||||
test ! -d "${ext_data_path}" || die "extensions.mutable should not exist"
|
||||
|
||||
# run systemd-sysext
|
||||
SYSTEMD_SYSEXT_HIERARCHIES="${hierarchy}" systemd-sysext --root="${fake_root}" --mutable=yes merge
|
||||
|
||||
test -d "${ext_data_path}" || die "extensions.mutable should exist now"
|
||||
touch "${fake_root}${hierarchy}/now-is-mutable" || die "${fake_root}${hierarchy} is not mutable"
|
||||
check_usual_suspects_after_merge "${fake_root}" "${hierarchy}" e h
|
||||
test -f "${ext_data_path}/now-is-mutable" || die "now-is-mutable is not stored in expected location"
|
||||
|
||||
SYSTEMD_SYSEXT_HIERARCHIES="${hierarchy}" systemd-sysext --root="${fake_root}" unmerge
|
||||
|
||||
check_usual_suspects_after_unmerge "${fake_root}" "${hierarchy}" h
|
||||
test -f "${ext_data_path}/now-is-mutable" || die "now-is-mutable disappeared from writable storage after unmerge"
|
||||
test ! -f "${fake_root}${hierarchy}/now-is-mutable" || die "now-is-mutable did not disappear from hierarchy after unmerge"
|
||||
|
||||
|
||||
#
|
||||
# /var/lib/extensions.mutable/… does not exist, auto-mutability
|
||||
#
|
||||
# read-only merged
|
||||
#
|
||||
|
||||
|
||||
fake_root=${fake_roots_dir}/simple-read-only-explicit
|
||||
hierarchy=/usr
|
||||
|
||||
prep_root "${fake_root}" "${hierarchy}"
|
||||
gen_os_release "${fake_root}"
|
||||
gen_test_ext_image "${fake_root}" "${hierarchy}"
|
||||
|
||||
prep_ro_hierarchy "${fake_root}" "${hierarchy}"
|
||||
|
||||
touch "${fake_root}${hierarchy}/should-fail-on-read-only-fs" && die "${fake_root}${hierarchy} is not read-only"
|
||||
|
||||
# run systemd-sysext
|
||||
SYSTEMD_SYSEXT_HIERARCHIES="${hierarchy}" systemd-sysext --root="${fake_root}" --mutable=auto merge
|
||||
|
||||
touch "${fake_root}${hierarchy}/should-still-fail-on-read-only-fs" && die "${fake_root}${hierarchy} is not read-only"
|
||||
check_usual_suspects_after_merge "${fake_root}" "${hierarchy}" e h
|
||||
|
||||
SYSTEMD_SYSEXT_HIERARCHIES="${hierarchy}" systemd-sysext --root="${fake_root}" unmerge
|
||||
|
||||
check_usual_suspects_after_unmerge "${fake_root}" "${hierarchy}" h
|
||||
|
||||
|
||||
#
|
||||
# done
|
||||
#
|
||||
|
||||
Reference in New Issue
Block a user