#!/bin/sh

# Slackware build script for gitea

# Copyright 2025 Sergei Fedosoff <eleksir@gmail.com>
# All rights reserved.
#
# Redistribution and use of this script, with or without modification, is
# permitted provided that the following conditions are met:
#
# 1. Redistributions of this script must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
#
#  THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR IMPLIED
#  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
#  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO
#  EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
#  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
#  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
#  OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
#  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
#  OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
#  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

PRGNAM="ollama"
VERSION="${VERSION:-0.6.6}"
BUILD="${BUILD:-1}"
TAG="${TAG:-_EXs}"

if [ -z "$ARCH" ]; then
	case "$( uname -m )" in
		i?86) ARCH="i586" ;;
		arm*) ARCH="arm" ;;
		*) ARCH="$( uname -m )" ;;
	esac
fi

CWD="$(pwd)"
TMP="${TMP:-/tmp/EXs}"
PKG="$TMP/package-$PRGNAM"
OUTPUT="${OUTPUT:-/tmp}"

if [ "$ARCH" = "i586" ]; then
	SLKCFLAGS="-O2 -march=i586 -mtune=i686"
	LIBDIRSUFFIX=""
elif [ "$ARCH" = "i686" ]; then
	SLKCFLAGS="-O2 -march=i686 -mtune=i686"
	LIBDIRSUFFIX=""
elif [ "$ARCH" = "x86_64" ]; then
	SLKCFLAGS="-O2 -fPIC"
	LIBDIRSUFFIX="64"
else
	SLKCFLAGS="-O2"
	LIBDIRSUFFIX=""
fi

USERNAME=${USERNAME:-ollama}
GROUPNAME=${GROUPNAME:-ollama}
USERID=${USERID:-5002}
GROUPID=${GROUPID:-5002}
HOMEDIR=${HOMEDIR:-/var/lib/ollama}
SHELLNAME=${SHELLNAME:-/bin/bash}

GETUSER=$(getent passwd $USERNAME)
GETGROUP=$(getent group $GROUPNAME)

set -e

if [ -z "$GETUSER" -o -z "$GETGROUP" ]; then
  printf "\n  You must have a \"$PRGNAM\" user and a group to run this script\n\n"
  [ -z "$GETGROUP" ] && printf "  # groupadd -g $GROUPID $GROUPNAME\n"
  [ -z "$GETUSER" ] && printf "  # useradd -u $USERID -d $HOMEDIR -s $SHELLNAME -g $GROUPNAME $USERNAME\n"
  printf "\n"
  exit 1
fi

rm -rf "$PKG"
mkdir -p "$TMP" "$PKG" "$OUTPUT"
cd "$TMP"
rm -rf "$PRGNAM-$VERSION"
tar xvf "$CWD/$PRGNAM-$VERSION.tar.gz"
cd "$PRGNAM-$VERSION"
chown -R root:root .
find -L . \
 \( -perm 777 -o -perm 775 -o -perm 750 -o -perm 711 -o -perm 555 \
  -o -perm 511 \) -exec chmod 755 {} \+ -o \
 \( -perm 666 -o -perm 664 -o -perm 640 -o -perm 600 -o -perm 444 \
  -o -perm 440 -o -perm 400 \) -exec chmod 644 {} \+

go build -ldflags="-s -w" -a -gcflags=all=-l -trimpath -buildvcs=false -buildmode=pie -o ollama .

install -Dpm 0755 ollama "$PKG/usr/bin/ollama"

find $PKG -print0 | xargs -0 file | grep -e "executable" -e "shared object" | grep ELF \
  | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null || true


for file in LICENSE README.md SECURITY.md; do
	install -Dpm 0644 "$file" "${PKG}/usr/doc/${PRGNAM}-${VERSION}/${file}"
done

rsync -a "docs/" "${PKG}/usr/doc/${PRGNAM}-${VERSION}/docs"

install -Dpm 0644 "$CWD/$PRGNAM.SlackBuild" "$PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild"

pushd "$CWD"
	for file in slack-desc; do
		install -Dpm 0644 "$file" "$PKG/install/$file"
	done
popd

cd "$PKG"
/sbin/makepkg -l y -c n "$OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.${PKGTYPE:-tgz}"

# vim: ft=sh noet ai ts=4 sw=4 sts=4: