From 0d1aabe28efaabc910dcbca4508bb7bbc97b23df Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Nicol=C3=A1s=20Reynolds?= <fauno@endefensadelsl.org>
Date: Tue, 7 Jan 2014 10:13:49 -0300
Subject: First test version of dagpkg, a topologically sorted recursive abs
 builder

---
 dagpkg | 154 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 154 insertions(+)
 create mode 100755 dagpkg

diff --git a/dagpkg b/dagpkg
new file mode 100755
index 0000000..d3fb723
--- /dev/null
+++ b/dagpkg
@@ -0,0 +1,154 @@
+#!/usr/bin/env bash
+set -e
+
+# Source variables from makepkg
+source /etc/makepkg.conf
+source $XDG_CONFIG_HOME/.makepkg.conf &>/dev/null || true
+
+# Source variables from libretools
+source /etc/libretools.conf
+source $XDG_CONFIG_HOME/libretools/libretools.conf &>/dev/null || true
+
+# End inmediately but print an useful message
+trap_exit() {
+  term_title "error!"
+  error "($(basename $0)) $@ (leftovers on ${temp_dir})"
+  exit 1
+}
+
+# Trap signals from makepkg
+trap 'trap_exit "TERM signal caught. Exiting..."' TERM HUP QUIT
+trap 'trap_exit "Aborted by user! Exiting..."' INT
+trap 'trap_exit "An unknown error has occurred. Exiting..."' ERR
+
+# Source this PKGBUILD, if it doesn't exist, exit
+if ! source PKGBUILD &>/dev/null ; then
+ error "No PKGBUILD in %s" "$PWD"
+ exit 1
+fi
+
+# This is the name of the package
+name="${pkgbase:-${pkgname[0]}}"
+
+# The name of the previous package
+prev="${3}"
+depth="${2:-0}"
+let next=${depth}+1 || true
+
+# A temporary work dir and log file
+temp_dir="${1:-$(mktemp -d /tmp/${name}-testpkg-XXXX)}"
+log="${temp_dir}/buildorder"
+
+# Generate the full version with epoch
+get_fullver() {
+    if [ $1 -eq 0 ]; then
+# zero epoch case, don't include it in version
+        echo $2-$3
+    else
+        echo $1:$2-$3
+    fi
+
+}
+
+# If it's already built we don't bother
+is_built ${pkgname[0]} $(get_fullver ${epoch:-0} ${pkgver} ${pkgrel}) &&
+exit
+
+# If the envvar I contains this package, ignore it and exit
+echo "$I" | grep -q "$name" && exit
+
+msg "%s(%d)" $name $depth
+
+build=false
+if [ ! -z "${1}" -a ${depth} -eq 0 ]; then
+  build=true
+fi
+
+  # If we specified a work dir on the cli it means we want to skip
+  # dependency graph creation and jump to build whatever is there
+  if ! ${build}; then
+
+  # Export a pair of current and previous package to get a list of graph
+  # edges
+  echo -e "${name}\t${prev:--}" | tee -a ${log}
+
+  # Recurse into dependencies
+  for d in ${depends[@]} ${makedepends[@]}; do
+    # Cleanup dependency versions
+    d=$(echo $d | sed "s/[<>=].*//")
+    # Where's the pkgbuild?
+    w=$(toru-where $d)
+
+    # Skip if not available
+    test -z "$w" && continue
+
+    # Go to this dir
+    pushd $w &>/dev/null
+
+    # Infinite loop detection, if the inverted pair current+prev was
+    # already seen, skip
+    if grep -q "${prev}[[:space:]]${d}" ${log} ; then
+      msg2 "infinite loop %s<->%s" $d $prev
+      continue
+    fi
+
+    # Edge detection
+    if grep -q "^${d}[[:space:]]" ${log} ; then
+      msg2 "edge %s already visited" ${d}
+      continue
+    fi
+
+    # Run this same command giving work dir, depth and previous package
+    $0 ${temp_dir} ${next} ${name}
+
+    popd &>/dev/null
+  done
+else
+  msg "Resuming build..."
+fi
+
+# end here if we're not the first package
+test ${depth} -ne 0 && exit
+
+
+# enter work dir
+pushd "${temp_dir}" &>/dev/null
+tsort ${log} | head -n-1 | tac | nl | tac | while read order pkg; do
+  # skip if already built
+  test -f "${pkg}/built_ok" && continue
+
+  # where's this package?
+  w="$(toru-where "$pkg")"
+  test -z "$w" && continue
+
+  # copy to work dir if not already
+  test -d "$pkg" || cp -r "$w" "$pkg"
+  pushd "$pkg" &>/dev/null
+
+  term_title "$pkg($order)"
+
+  msg "Building %s" ${pkg}
+
+  # upgrade the system
+  sudo -E pacman -Syu --noconfirm
+
+  # run the pre build command from libretools.conf
+  ${HOOKPREBUILD}
+
+  # run the build command
+  ${FULLBUILDCMD}
+
+  # Run local release hook with $1 = $repo
+  ${HOOKLOCALRELEASE} "$(basename "$(dirname "$w")")"
+
+  # it's built!
+  touch built_ok
+
+  popd &>/dev/null
+done
+
+popd &>/dev/null
+# cleanup
+rm -rf ${log} "${temp_dir}"
+
+term_title "done"
-- 
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