cpt-reset: rewrite to make use of the /etc/cpt-base file.

FossilOrigin-Name: 8e53e32d1f2cfa115743a912260d6d8e60b547b29a99ae3684306400ff367f43

1 files changed, 26 insertions, 11 deletions

diff --git a/contrib/cpt-reset b/contrib/cpt-reset
index 1226fe6..4dfe52d 100755
--- a/contrib/cpt-reset
+++ b/contrib/cpt-reset
@@ -1,24 +1,39 @@
-#!/bin/sh -ef
+#!/bin/sh -e
 # Remove all packages except for the base
 #
 # Disable word-splittng warnings as they're safe here.
 # shellcheck disable=SC2046
 
-set --
+[ "$1" ] && {
+    printf 'usage: %s\n\nRemove all packages not defined in the base.\n' \
+           "${0##*/}"
+    exit 0
+}
 
-while read -r pkg _; do
-    case $pkg in
-        baselayout|binutils|bison|busybox|bzip2|curl|flex|gcc|rsync|\
-        gzip|cpt|libressl|linux-headers|m4|make|musl|pkgconf|xz|zlib) ;;
+sys_db="$CPT_ROOT/var/db/cpt/installed"
+
+# Get base packages and their dependencies.
+[ -f "$CPT_ROOT/etc/cpt-base" ] && while read -r basepkg _; do
+    case "$basepkg" in \#*) continue; esac
+    base=" $basepkg $base"
+    [ -f "$sys_db/$basepkg/depends" ] || continue
+    while read -r dep make; do
+        [ "$make" ] && continue
+        base=" $dep $base"
+    done < "$sys_db/$basepkg/depends"
+done < "$CPT_ROOT/etc/cpt-base"
+
+set --
+cd "$sys_db"
 
-        *) set -- "$@" "$pkg" ;;
-    esac
-done <<EOF
-$(cpt-list)
-EOF
+for pkg in *; do
+    case "$base" in *" $pkg "*) continue; esac
+    set -- "$pkg" "$@"
+done
 
 [ "$1" ] && {
     printf 'WARNING: This will remove \033[1m%s\033[m package(s).\n' "$#"
+    printf 'Base packages can be redefined in %s\n' "$CPT_ROOT/etc/cpt-base"
     printf 'Continue? [Enter/Ctrl+C]\n'
     read -r _ && CPT_FORCE=1 cpt-remove "$@"
 }