rpmdeps
Live building the reversed graph of RPM dependencies, by a raw RPM manifest file, fetched and processed ah-hoc on the host.
TODO: dedup and visualize graph file with some python magic.
It only builds raw and redundant entries yet, like:
$ bash auto_deps.sh http://<URI-to-full-rpm.manifest>
$ grep python3-jinja2 direct[0-9] lv[0-9]
lv0:python3-jinja2
lv1:python3-jinja2.lv1_required_by ansible
lv1:python3-jinja2.lv1_required_by cloud-init
lv1:python3-jinja2.lv1_required_by python3-ipaclient
lv1:platform-python-setuptools.lv1_required_by python3-jinja2
lv1:python3-markupsafe.lv1_required_by python3-jinja2
lv1:python3-babel.lv1_required_by python3-jinja2
lv1:python3-jinja2.lv1_required_by python3-oslo-middleware
lv2:python3-jinja2.lv2_required_by ansible
lv2:python3-jinja2.lv2_required_by cloud-init
lv2:python3-jinja2.lv2_required_by python3-ipaclient
lv2:python3-babel.lv2_required_by python3-jinja2
lv2:python3-jinja2.lv2_required_by python3-oslo-middleware
Here lv0 contains the leftmost nodes of the dependency graph (RPM names
stripped their versions off). Those are linked to PRMs that require it, if
any. Then lv1 links the latter with its parent RPMs, etc. The generated
entries are not deduplicated and may repeat itself through different
lv/direct files. Files direct* contain the rightmost graph nodes
(represent top level, or standalone packages).
build graph file with all entries
(for all items in the given manifest file, contains redundant entries)
cat lv0 | while read p; do grep $(echo $p | awk -F'-[[:digit:]]' '{print $1}') lv[1-9]; done | sort -k 2 > graph
count direct installs
(nothing requires a directly installed package, but it may have dependencies)
cat direct0 | wc -l
E.g. contains 348 entries.
find standalone installs
(nothing requires, has no deps - standalone/disconnected graph nodes)
comm -23 direct0 <(cat direct[1-9] | sort -u) > standalone
Or use difft for a pretty view. E.g., it contains 241 entries.
This also includes base image packages, like kernel.
Need to go deeper(c)...
difft direct1 <(cat direct[2-9] | sort -u)
difft direct2 <(cat direct[3-9] | sort -u)
...
???
PROFIT?
find standalone userinstalled packages
(a reduced subset of dnf history userinstalled which are also standalone)
sudo dnf history userinstalled | grep -v ' ' | awk -F'-[[:digit:]]' '{if ($1) print $1}' > direct99
comm -12 direct99 standalone
E.g. this now shows only 63 entries of original 108 entries shown as userinstalled.
find top level installs
(the rightmost nodes in the deps graph, excluding standalone ones)
cat direct[1-9] | sort -u
E.g. it contains 108 entries.