programming/PostgreSQL/build_rdbms_01/install_postgresql.sh

#!/usr/bin/env bash

set -Eeuo pipefail

SCRIPT_DIR="$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" && pwd)"
# shellcheck source=install_common.sh
source "$SCRIPT_DIR/install_common.sh"

readonly STAGING_DIR="${STAGING_DIR:-$SCRIPT_DIR/tmp}"
readonly POSTGRES_ROOT="${POSTGRES_ROOT:-/app/postgres/rdbms}"

if [[ "${1:-}" == "--help" || "${1:-}" == "-h" ]]; then
  show_help "$0" "Build and install PostgreSQL from source."
  exit 0
fi

POSTGRES_VERSION="$(parse_postgresql_version "$@")"
readonly POSTGRES_VERSION
validate_postgresql_version "$POSTGRES_VERSION"
require_tools curl tar make gcc

readonly PREFIX="${PREFIX:-$POSTGRES_ROOT/$POSTGRES_VERSION}"
readonly POSTGRES_CONFIGURE_OPTIONS="${POSTGRES_CONFIGURE_OPTIONS:---with-ssl=openssl,--with-lz4}"
readonly PG_BIN="$PREFIX/bin"
readonly PG_CONFIG="$PG_BIN/pg_config"
[[ "$PREFIX" != "/" ]] || die "PREFIX must not be the filesystem root"
reset_staging_dir "$STAGING_DIR"
rm -rf -- "$PREFIX"
mkdir -p "$STAGING_DIR" "$PREFIX"

printf 'Building PostgreSQL %s\n' "$POSTGRES_VERSION"
readonly POSTGRES_ARCHIVE="$STAGING_DIR/postgresql-$POSTGRES_VERSION.tar.gz"
readonly POSTGRES_SOURCE="$STAGING_DIR/postgresql-$POSTGRES_VERSION"
readonly POSTGRES_SOURCE_URL="https://ftp.postgresql.org/pub/source/v$POSTGRES_VERSION/postgresql-$POSTGRES_VERSION.tar.gz"
curl -fL --retry 3 --retry-delay 2 \
  -o "$POSTGRES_ARCHIVE" \
  "$POSTGRES_SOURCE_URL"
tar -xzf "$POSTGRES_ARCHIVE" -C "$STAGING_DIR"
record_source_download "PostgreSQL" "$POSTGRES_SOURCE_URL"

cd "$POSTGRES_SOURCE"
[[ "$POSTGRES_CONFIGURE_OPTIONS" != ,* &&
  "$POSTGRES_CONFIGURE_OPTIONS" != *, &&
  "$POSTGRES_CONFIGURE_OPTIONS" != *,,* ]] || die "configure options must be a non-empty comma-separated list"
IFS=',' read -r -a CONFIGURE_OPTIONS <<< "${POSTGRES_CONFIGURE_OPTIONS:-}"
./configure \
  --prefix="$PREFIX" \
  "${CONFIGURE_OPTIONS[@]}"
make -j"${JOBS:-$(nproc)}"
make install

printf '\nVerification:\n'
"$PG_BIN/postgres" --version
"$PG_CONFIG" --version

readonly SAVED_SOURCE_DIR="$(copy_install_source "$POSTGRES_SOURCE" "$PREFIX" "postgresql-$POSTGRES_VERSION")"
write_install_recipe "$SAVED_SOURCE_DIR" "$POSTGRES_VERSION" "$PREFIX" "$POSTGRES_CONFIGURE_OPTIONS" <<'RECIPE'
cd "$SCRIPT_DIR"

# Configure
IFS=',' read -r -a CONFIGURE_OPTIONS <<< "$POSTGRES_CONFIGURE_OPTIONS"
./configure \
  --prefix="$PREFIX" \
  "${CONFIGURE_OPTIONS[@]}"

# Make
make -j"$JOBS"

# Make install
make install
RECIPE