#!/usr/bin/env bash
########################################################################
# Helper script for sdist/bdist
#
# Usage: sage-clone-source SRC DST
#
# Create empty directory DST (delete it if it existed) and copy all
# Sage source files from SRC to DST using git.
#
# Also extract auto-generated files from the configure tarball.
########################################################################
set -e
if [ $# -ne 2 ]; then
echo >&2 "Usage: $0 SRC DST"
exit 2
fi
SRC="$1"
DST="$2"
cd "$SRC"
# Filename of configure tarball, which is downloaded if it doesn't exist
CONFVERSION=`cat build/pkgs/configure/package-version.txt`
CONFBALL="$SRC/upstream/configure-$CONFVERSION.tar.gz"
[ -f "$CONFBALL" ] || ./bootstrap -D
rm -rf "$DST"
mkdir -p "$DST"
git clone "$SRC" "$DST"
cd "$DST"
git remote set-url origin "$SAGE_REPO_ANONYMOUS"
# Save space
git prune
# Extract configure tarball. Use m option such that the timestamps of
# these auto-generated files are NOW (instead of the time stored in the
# tarball). We need these files to be more recent than the input files
# like configure.ac, otherwise "make" gets confused.
tar xzmf "$CONFBALL"
echo "Finished cloning Sage sources"
