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authormerakor <cem@ckyln.com>2021-01-03 22:22:43 +0000
committermerakor <cem@ckyln.com>2021-01-03 22:22:43 +0000
commit5bed6bb3ce3ea13adead455cbc7b0fc94818860b (patch)
tree14b537e326653d718c5c0ff113ebd202130a5f0e
parent757d14f801364bbc071be3e55658b1c237fa10c6 (diff)
downloadcpt-5bed6bb3ce3ea13adead455cbc7b0fc94818860b.tar.gz
pkg_gentree(): add function to generate a dependency graph
FossilOrigin-Name: e56971ac89f4a4e1c3efd62dad13b3a1c43bc6266c2803600995954cb61ee6cd
-rw-r--r--src/cpt-lib.in44
1 files changed, 40 insertions, 4 deletions
diff --git a/src/cpt-lib.in b/src/cpt-lib.in
index b42d0e3..770e38d 100644
--- a/src/cpt-lib.in
+++ b/src/cpt-lib.in
@@ -773,16 +773,29 @@ pkg_depends() {
(pkg_list "$1" >/dev/null) && return
while read -r dep type || [ "$dep" ]; do
+ # Skip comments and empty lines.
+ [ "${dep##\#*}" ] || continue
# Skip test dependencies unless $CPT_TEST is set to 1.
- case $type in test) [ "$CPT_TEST" = 1 ] || continue; esac
+ #
+ # Skip make dependencies on the 'tree' operation for child packages
+ # or when the 'first-nomake' argument is given.
+ case $type in
+ test) [ "$CPT_TEST" = 1 ] || continue ;;
+ make) [ "$2" = tree ] && [ -z "${3#first-nomake}" ] && continue
+ esac
- # Recurse through the dependencies of the child packages.
- [ "${dep##\#*}" ] && pkg_depends "$dep"
+ # Recurse through the dependencies of the child packages. Forward
+ # the 'tree' operation.
+ if [ "$2" = tree ]; then
+ pkg_depends "$dep" tree
+ else
+ pkg_depends "$dep"
+ fi
done 2>/dev/null < "$(pkg_find "$1")/depends" ||:
# After child dependencies are added to the list,
# add the package which depends on them.
- [ "$2" = explicit ] || deps="$deps $1 "
+ [ "$2" = explicit ] || [ "$3" ] || deps="$deps $1 "
}
}
@@ -1822,6 +1835,29 @@ pkg_get_base() (
if [ "$nonl" ]; then printf '%s ' "$@"; else printf '%s\n' "$@"; fi
)
+pkg_gentree() (
+ # Generate an ordered dependency tree of a package. Useful for testing
+ # whether the generated dependency tree is enough to actually building a
+ # given package. A second argument can be given as a combination of
+ # characters (similar to 'tar(1)' keys) which will be used as an option
+ # parser. See the documentation for more information on the keys.
+ deps='' reverse='' nonl='' make_deps=first
+ for op in $(sepchar "$2"); do
+ case "$op" in
+ b) deps="$(pkg_get_base nonl)" ;;
+ x) make_deps=first-nomake ;;
+ r) reverse=1 ;;
+ n) nonl=1 ;;
+ *) return 1
+ esac
+ done
+ pkg_depends "$1" tree "${make_deps:+first}"
+ eval set -- "$deps"
+ pkg_order "$@"
+ if [ "$reverse" ]; then eval set -- "$redro"; else eval set -- "$order"; fi
+ if [ "$nonl" ]; then printf '%s ' "$@"; else printf '%s\n' "$@"; fi
+)
+
pkg_clean() {
# Clean up on exit or error. This removes everything related
# to the build.