1 files changed, 103 insertions, 0 deletions
diff --git a/src/shared/deptree.sh b/src/shared/deptree.sh
new file mode 100644
index 0000000..ffc0af8
--- /dev/null
+++ b/src/shared/deptree.sh
@@ -0,0 +1,103 @@
+#!/bin/bash
+ ##############################################################################
+ #                      parabola-riscv64-bootstrap                            #
+ #                                                                            #
+ #    Copyright (C) 2018  Andreas Grapentin                                   #
+ #                                                                            #
+ #    This program is free software: you can redistribute it and/or modify    #
+ #    it under the terms of the GNU General Public License as published by    #
+ #    the Free Software Foundation, either version 3 of the License, or       #
+ #    (at your option) any later version.                                     #
+ #                                                                            #
+ #    This program is distributed in the hope that it will be useful,         #
+ #    but WITHOUT ANY WARRANTY; without even the implied warranty of          #
+ #    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the           #
+ #    GNU General Public License for more details.                            #
+ #                                                                            #
+ #    You should have received a copy of the GNU General Public License       #
+ #    along with this program.  If not, see <http://www.gnu.org/licenses/>.   #
+ ##############################################################################
+
+check_deptree() {
+  echo -n "checking for complete deptree ... "
+
+  local have_deptree=yes
+  [ -f "$DEPTREE".FULL ] || have_deptree=no
+  echo $have_deptree
+
+  [ "x$have_deptree" == "xyes" ] || return "$ERROR_MISSING"
+}
+
+build_deptree() {
+  check_exe ed pacman sed || return
+
+  # create empty deptree
+  truncate -s0 "$DEPTREE".FULL
+
+  # add the packages listed in the given groups
+  local g p r
+  for g in "$@"; do
+    for p in $(pacman -Sg "$g" | awk '{print $2}'); do
+      r=$(make_realpkg "$p") || return "$ERROR_MISSING"
+
+      if ! grep -q "^$r :" "$DEPTREE".FULL; then
+        echo "$r : [ ] # $g" >> "$DEPTREE".FULL
+      else
+        sed -i "s/^$r : \\[.*/&, $g/" "$DEPTREE".FULL
+      fi
+    done
+  done
+}
+
+prepare_deptree() {
+  check_deptree || build_deptree "$@" || return
+
+  [ -f "$DEPTREE" ] || cp "$DEPTREE"{.FULL,}
+  chown "$SUDO_USER" "$DEPTREE"{,.FULL}
+}
+
+deptree_next() {
+  local pkg
+  pkg=$(grep '\[ *\]' "$DEPTREE" | tail -n1 | awk '{print $1}')
+  [ -n "$pkg" ] || return "$ERROR_MISSING"
+  echo "$pkg"
+}
+
+deptree_remove() {
+  sed -i "/^$1 :/d; s/ /  /g; s/ $1 / /g; s/  */ /g" "$DEPTREE"
+}
+
+deptree_check_depends() {
+  local OPTIND o needed=yes
+  while getopts "n" o; do
+    case "$o" in
+      n) needed=no ;;
+      *) die -e "$ERROR_INVOCATION" "Usage: ${FUNCNAME[0]} [-p] deptree pkgname depend" ;;
+    esac
+  done
+  shift $((OPTIND-1))
+
+  local pkg="$1"
+  shift
+
+  local dep r res=0
+  # shellcheck disable=SC2068
+  for dep in $@; do
+    r=$(make_realpkg "$dep") || { res="$ERROR_MISSING"; continue; }
+
+    local have_pkg=yes
+    check_pkgfile "$PKGDEST" "$r" || have_pkg=no
+
+    if ! grep -q "^$r :" "$DEPTREE".FULL; then
+      echo "$r : [ ] # $pkg" >> "$DEPTREE".FULL
+      echo "$r : [ ] # $pkg" >> "$DEPTREE"
+    else
+      sed -i "/#.* $pkg\\(\\$\\|[ ,]\\)/! s/^$r : \\[.*/&, $pkg/" "$DEPTREE"{,.FULL}
+    fi
+    if [ "x$needed" == "xyes" ] && [ "x$have_pkg" == "xno" ]; then
+      sed -i "s/^$pkg : \\[/& $r/" "$DEPTREE"{,.FULL}
+    fi
+  done
+
+  return "$res"
+}