install-qa-check.d: Move 08gentoo-paths check outta Portage

Signed-off-by: Michał Górny <mgorny@gentoo.org>
Bug: https://bugs.gentoo.org/show_bug.cgi?id=667604

diff --git a/metadata/install-qa-check.d/08gentoo-paths b/metadata/install-qa-check.d/08gentoo-paths
new file mode 100644 (file)
index 0000000..3ee887d
--- /dev/null
+++ b/metadata/install-qa-check.d/08gentoo-paths
@@ -0,0 +1,77 @@
+# Check whether ebuilds are not installing new, non-Gentoo-ey paths.
+
+gentoo_path_check() {
+       # allowed path definitions
+       # ------------------------
+
+       # directories common to / and /usr
+       local allowed_common_dirs=(
+               bin lib lib32 lib64 libx32 sbin
+       )
+
+       # toplevel directories which can be installed to by ebuilds
+       # /home is not included as no ebuilds should install files there
+       local allowed_paths_toplevel=(
+               "${allowed_common_dirs[@]}"
+               boot dev etc opt srv usr var
+       )
+
+       # directories in /usr which can be installed to by ebuilds
+       # /usr/games is not included as it is banned nowadays
+       local allowed_paths_usr=(
+               "${allowed_common_dirs[@]}"
+               include libexec share src
+               # toolchain stuff
+               "${CHOST}" "${CTARGET}"
+       )
+
+
+       # the logic
+       # ---------
+       local bad_paths=()
+       local x
+
+       local shopt_save=$(shopt -p nullglob)
+       shopt -s nullglob
+
+       # 1. check for unexpected top-level directories
+       local toplevel_dirs=( "${ED%/}"/* )
+       for x in "${toplevel_dirs[@]##*/}"; do
+               if ! has "${x}" "${allowed_paths_toplevel[@]}"; then
+                       bad_paths+=( "/${x}" )
+               fi
+       done
+
+       # 2. check for unexpected /usr subdirectories
+       local usr_dirs=( "${ED%/}"/usr/* )
+       for x in "${usr_dirs[@]##*/}"; do
+               if ! has "${x}" "${allowed_paths_usr[@]}"; then
+                       bad_paths+=( "/usr/${x}" )
+               fi
+       done
+
+       # 3. check for unexpected /usr/share/doc subdirectories
+       local doc_dirs=( "${ED%/}"/usr/share/doc/* )
+       for x in "${doc_dirs[@]##*/}"; do
+               if [[ ${x} != ${PF} ]]; then
+                       bad_paths+=( "/usr/share/doc/${x}" )
+               fi
+       done
+
+       ${shopt_save}
+
+       # report
+       # ------
+       if [[ -n ${bad_paths[@]} ]]; then
+               eqawarn "The ebuild is installing to one or more unexpected paths:"
+               eqawarn
+               eqatag -v non-gentoo-paths "${bad_paths[@]}"
+               eqawarn
+               eqawarn "Please fix the ebuild to use correct FHS/Gentoo policy paths."
+       fi
+}
+
+gentoo_path_check
+: # guarantee successful exit
+
+# vim:ft=sh