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#!/bin/sh -e
# Copyright (c) 2025 Alexander Hill
# Permission to use, copy, modify, and/or distribute this software for any
# purpose with or without fee is hereby granted, provided that the above
# copyright notice and this permission notice appear in all copies.
# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
# REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
# AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
# INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
# LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
# OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
# PERFORMANCE OF THIS SOFTWARE.
#############
# Changelog #
#############
# November 11, 2025 (1.0.1)
# - Removed bashisms to become POSIX compliant
# November 9, 2025 (1.0.0)
# * Initial release
####################
# Global Variables #
####################
[ -z "$TREETAP_DIR" ] && TREETAP_DIR="$(pwd)/.treetap"
[ -z "$TREETAP_PKGDIR" ] && TREETAP_PKGDIR="$TREETAP_DIR/packages"
[ -z "$TREETAP_SYSROOT" ] && TREETAP_SYSROOT=/
TREETAP_VERSION="1.0.1"
#####################
# Utility Functions #
#####################
# Displays the usage information for treetap
help_message() {
echo "treetap $TREETAP_VERSION"
echo
echo "Package Commands:"
echo " $0 install <package> [sysroot]"
echo " $0 uninstall <package> [sysroot]"
echo
echo "Source Commands:"
echo " $0 build <spec>"
echo " $0 clean <spec>"
echo " $0 fetch <spec>"
echo " $0 package <spec>"
echo " $0 purge <spec>"
exit 1
}
# Confirms that the given strings are valid package and sysroot paths
package_check() {
[ -z "$1" ] && (echo "package_check: Missing package file"; exit 1)
[ -z "$2" ] && (echo "package_check: Missing sysroot"; exit 1)
[ ! -f "$1" ] && (echo "package_check: Package file \"$1\" not found"; exit 1)
[ ! -d "$2" ] && (echo "package_check: Sysroot \"$2\" not found"; exit 1)
true
}
# Reads the source specification and ensures it includes the required data
source_spec() {
# Sanity Check
[ -z "$1" ] && (echo "source_spec: Missing specification file"; exit 1)
[ ! -f "$1" ] && (echo "source_spec: Specification file \"$1\" not found"; exit 1)
# Zhu Li, do the thing!
. $1
# Required Fields
[ -z "$SRC_HASH" ] && (echo "source_spec: SRC_HASH is required but not defined"; exit 1)
[ -z "$SRC_NAME" ] && (echo "source_spec: SRC_NAME is required but not defined"; exit 1)
[ -z "$SRC_URL" ] && (echo "source_spec: SRC_URL is required but not defined"; exit 1)
[ -z "$SRC_VERSION" ] && (echo "source_spec: SRC_VERSION is required but not defined"; exit 1)
# Optional Fields
[ -z "$SRC_FILENAME" ] && SRC_FILENAME=$(basename $SRC_URL)
# Environmental Variables
[ -z "$TREETAP_BINDIR" ] && TREETAP_BINDIR=/bin
TREETAP_BUILD=$(clang -dumpmachine)
[ -z "$TREETAP_TARGET" ] && TREETAP_TARGET=$TREETAP_BUILD
TREETAP_BUILDDIR="$TREETAP_DIR/sources/$SRC_NAME/$SRC_VERSION/$TREETAP_TARGET"
[ -z "$TREETAP_INCLUDEDIR" ] && TREETAP_INCLUDEDIR=/usr/include
TREETAP_INSTALLDIR="$TREETAP_BUILDDIR/install"
[ -z "$TREETAP_LIBDIR" ] && TREETAP_LIBDIR=/lib
[ -z "$TREETAP_PREFIX" ] && TREETAP_PREFIX=/
[ -z "$TREETAP_PROCS" ] && TREETAP_PROCS=$(nproc)
true
}
###############
# Subcommands #
###############
# Installs a package to the sysroot
package_install() {
[ ! -z "$2" ] && TREETAP_SYSROOT=$2
package_check $1 $TREETAP_SYSROOT
echo "Installing $(basename $1)"
FULLPATH=$(pwd)/$1
PUSHD=$(pwd)
cd $TREETAP_SYSROOT
xz -cd $FULLPATH | cpio -idmu --quiet
cd $PUSHD
exit 0
}
# Uninstalls a package from the sysroot
package_uninstall() {
[ ! -z "$2" ] && TREETAP_SYSROOT=$2
package_check $1 $TREETAP_SYSROOT
echo "Uninstalling $(basename $1)"
FULLPATH=$(pwd)/$1
PUSHD=$(pwd)
cd $TREETAP_SYSROOT
xz -cd $FULLPATH | cpio -it --quiet | tail -n +2 | sort -r | while read path; do
if [ -d $path ]; then
rmdir --ignore-fail-on-non-empty $path
else
rm -f $path
fi
done
cd $PUSHD
exit 0
}
# Builds the source from the previously fetched tarball
source_build() {
source_spec $1
mkdir -p $TREETAP_BUILDDIR
PUSHD=$(pwd)
cd $TREETAP_BUILDDIR
echo "Building $SRC_NAME $SRC_VERSION"
build > build-$(date +%Y%m%d%H%M%S).log 2>&1
cd $PUSHD
exit 0
}
# Cleans the source from the previous build
source_clean() {
source_spec $1
mkdir -p $TREETAP_BUILDDIR
PUSHD=$(pwd)
cd $TREETAP_BUILDDIR
echo "Cleaning $SRC_NAME $SRC_VERSION"
clean
rm -rf $TREETAP_INSTALLDIR
cd $PUSHD
exit 0
}
# Fetches and verifies the integrity of the source tarball
source_fetch() {
source_spec $1
mkdir -p $TREETAP_BUILDDIR
PUSHD=$(pwd)
cd $TREETAP_BUILDDIR/..
echo "Fetching $SRC_FILENAME"
curl -L -sS $SRC_URL -o $SRC_FILENAME
echo "Verifying $SRC_FILENAME"
echo "$SRC_HASH $SRC_FILENAME" | sha256sum -c - > /dev/null
cd $PUSHD
exit 0
}
# Packages the built artifacts for distribution
source_package() {
source_spec $1
mkdir -p $TREETAP_BUILDDIR
mkdir -p $TREETAP_INSTALLDIR
mkdir -p $TREETAP_PKGDIR
PUSHD=$(pwd)
cd $TREETAP_BUILDDIR
echo "Moving artifacts for $SRC_NAME $SRC_VERSION"
package > package-$(date +%Y%m%d%H%M%S).log
echo "Archiving $SRC_NAME $SRC_VERSION"
cd $TREETAP_INSTALLDIR
find | cpio -o --quiet | xz -cz > "$TREETAP_PKGDIR/$SRC_NAME-$SRC_VERSION.cpio.xz"
rm -rf $TREETAP_INSTALLDIR
cd $PUSHD
exit 0
}
# Purges the entire build directory for a source
source_purge() {
source_spec $1
rm -rf $TREETAP_BUILDDIR
exit 0
}
###############
# Entry Point #
###############
case "$1" in
"build") source_build $2 ;;
"clean") source_clean $2 ;;
"fetch") source_fetch $2 ;;
"install") package_install $2 $3 ;;
"package") source_package $2 ;;
"purge") source_purge $2 ;;
"uninstall") package_uninstall $2 $3 ;;
*) help_message ;;
esac
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