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#!/bin/bash -eu
SCRIPT_NAME=$(basename $0)
COMMON_ROOT=$(dirname $0)
DESTINATION="$1"
TOX_INI_UPPER_CONSTRAINT_URL="$(${COMMON_ROOT}/extract_upper_constraints_from_tox_ini.sh ${COMMON_ROOT}/../../tox.ini)"
copy() {
local src=$1
local destination=$2
if test -z "${src}"; then
return 1
fi
if test -e "${src}"; then
log "File '${src}' exists. Using as upper-constraints."
cp "${src}" "${destination}"
else
log "File '${src}' not found. Skipping local file strategy."
return 1
fi
return 0
}
download() {
local url=$1
local destination=$2
if test -z "${url}"; then
return 1
else
log "Downloading from '${url}'"
curl ${url} -o "${destination}"
fi
return 0
}
log() {
echo "${SCRIPT_NAME}: ${@}"
}
fail() {
log ${@}
exit 1
}
upper_constraints_is_not_null() {
test "${UPPER_CONSTRAINTS_FILE:-""}" != ""
}
copy_uc() {
copy "${UPPER_CONSTRAINTS_FILE:-""}" "${DESTINATION}"
}
download_uc() {
download "${UPPER_CONSTRAINTS_FILE:-""}" "${DESTINATION}"
}
copy_new_requirements_uc() {
copy "/opt/stack/new/requirements/upper-constraints.txt" "${DESTINATION}"
}
download_from_tox_ini_url() {
log "tox.ini indicates '${TOX_INI_UPPER_CONSTRAINT_URL}' as fallback."
download "${TOX_INI_UPPER_CONSTRAINT_URL}" "${DESTINATION}"
}
log "Generating local constraints file..."
if upper_constraints_is_not_null; then
log "UPPER_CONSTRAINTS_FILE is defined as '${UPPER_CONSTRAINTS_FILE:-""}'"
copy_uc || download_uc || fail "Failed to copy or download file indicated in UPPER_CONSTRAINTS_FILE."
else
log "UPPER_CONSTRAINTS_FILE is not defined. Using fallback strategies."
copy_new_requirements_uc || \
download_from_tox_ini_url || fail "Failed to download upper-constraints.txt from '${TOX_INI_UPPER_CONSTRAINT_URL}'."
fi
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