Update to the new version of devtools (huge commit).

User-facing changes:
 - libremessages: `lock_open_write` became `lock`
 - libremessages: `lock_open_read` became `slock`
 - librechroot: learned the `-r` and `-w` flags to do bind mounts.

Internal changes:

The changes to librechroot were pretty straight-forward; the biggest
change is that `archroot` got split into `mkarchroot` and
`arch-nspawn`.

libremakepkg got a major overhaul Honestly, the changes to
libremakepklg probably could have been a lot smaller, but... I wanted
to do it right/be clean.  makechrootpkg in devtools got cleaned up a
lot, actually a lot of the same changes I was making.  But, the small
differences between the way we did things made it less than simple to
adjust.  The biggest changes in terms of conflict for me are how
devtools now uses bind-mounts to put files in the chroot, and that the
/chrootbuild file is more complicated.

I handled a lot of the complexity by moving things out of the main
program, and adding hooks for non-core functionality, including
chcleanup, distcc compatability hacks, and PKGBUILD/pkg checking.
Unfortunately, the files containing the hooks are currently
hard-coded.  Perhaps they will be truly pluggable in the future.  That
might be neat.  Or over-complicated.  We'll see where it goes.

1 files changed, 86 insertions, 0 deletions

diff --git a/src/chroot-tools/hooks-distcc.sh b/src/chroot-tools/hooks-distcc.sh
new file mode 100644
index 0000000..bbbc3e9
--- /dev/null
+++ b/src/chroot-tools/hooks-distcc.sh
@@ -0,0 +1,86 @@
+#!/bin/bash -euE
+
+hook_pre_build+=("distcc_start")
+hook_post_build+=("distcc_stop")
+
+_distcc_check() {
+	local copydir=$1
+	local home=$2
+
+	local files=(
+		"$copydir/bin/distcc-tool"
+		"$copydir/run/distcc-tool.pid"
+		"$home/.makepkg.conf"
+		"$home/.ssh/config"
+	)
+
+	local file_err=false
+	for files in "${files[@]}"; do
+		if [[ -f $file ]]; then
+			file_err=true
+			error "Auto-generated file already exists, remove it: %s" "$file"
+		fi
+	done
+	if $file_err; then
+		exit 1
+	fi
+}
+
+distcc_start() {
+	local copydir=$1
+
+	# Because /{,usr/}{,s}bin are all symlinked together for
+	# fileystem 2013.05-2 and up, I can take shortcuts when checking for
+	# existance of programs.
+	if $NONET && [[ -f "$copydir/bin/socat" && -f "$copydir/bin/distcc" ]]; then
+		local home
+		if $INCHROOT; then
+			home=$LIBREHOME
+		else
+			home="$copydir/build"
+		fi
+
+		_distcc_check
+
+		local _distcc_tool=$(librelib chroot/distcc-tool)
+		install -m755 "$_distcc_tool"  "$copydir/bin/distcc-tool"
+
+		mkdir -p "$home/.ssh"
+
+		printf '%s\n' \
+			'/bin/distcc-tool idaemon "$DISTCC_HOSTS" &' \
+			'DISTCC_HOSTS="$(/bin/distcc-tool rewrite "$DISTCC_HOSTS")"' \
+			> "$home/.makepkg.conf"
+
+		printf '%s\n' \
+			'Host *' \
+			'    ProxyCommand /bin/distcc-tool client %h %p' \
+			> "$home/.ssh/config"
+
+		"$_distcc_tool" odaemon "$copydir" &
+		echo $! > "$copydir/run/distcc-tool.pid"
+	fi
+}
+
+distcc_stop() {
+	local copydir=$1
+
+	local home
+	if $INCHROOT; then
+		home=$LIBREHOME
+	else
+		home="$copydir/build"
+	fi
+
+	if [[ -f "$copydir/run/distcc-tool.pid" ]]; then
+
+		odaemon=$(cat "$copydir/distcc-tool.pid")
+		kill -- "$odaemon"
+
+		rm -f -- \
+			"$home/.makepkg.conf" \
+			"$home/.ssh/config" \
+			"$copydir/bin/distcc-tool" \
+			"$copydir/run/distcc-tool.pid"
+	fi
+}