97 lines
2.6 KiB
Bash
Executable File
97 lines
2.6 KiB
Bash
Executable File
#!/bin/bash -eu
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SCRIPT_NAME=$(basename $0)
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COMMON_ROOT=$(dirname $0)
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DESTINATION="$1"
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TOX_INI=${2:-tox.ini}
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copy() {
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local src=$1
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local destination=$2
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if test -z "${src}"; then
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return 1
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fi
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if test -e "${src}"; then
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log "File '${src}' exists. Using as upper-constraints."
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cp "${src}" "${destination}"
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else
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log "File '${src}' not found. Skipping local file strategy."
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return 1
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fi
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return 0
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}
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download() {
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local url=$1
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local destination=$2
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if test -z "${url}"; then
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return 1
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else
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log "Downloading from '${url}'"
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curl -L ${url} -o "${destination}"
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fi
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return 0
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}
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log() {
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echo "${SCRIPT_NAME}: ${@}"
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}
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fail() {
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log ${@}
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exit 1
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}
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tox_constraints_is_not_null() {
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test "${TOX_CONSTRAINTS_FILE:-""}" != ""
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}
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copy_uc() {
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copy "${TOX_CONSTRAINTS_FILE:-""}" "${DESTINATION}"
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}
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download_uc() {
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download "${TOX_CONSTRAINTS_FILE:-""}" "${DESTINATION}"
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}
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copy_new_requirements_uc() {
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if [ -e "/opt/stack/new/requirements" ]; then
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copy "/opt/stack/new/requirements/upper-constraints.txt" "${DESTINATION}"
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elif [ -e "/opt/stack/requirements" ]; then
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copy "/opt/stack/requirements/upper-constraints.txt" "${DESTINATION}"
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else
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log "No local requirements repository, will download upper-constraints"
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# Allow the caller to handle the failure
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return 1
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fi
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}
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download_from_tox_ini_url() {
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local url
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# NOTE(mmitchell): This extracts the URL defined as the default value for
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# TOX_CONSTRAINTS_FILE in tox.ini. This is used by image
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# builders to avoid duplicating the default value in multiple
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# scripts. This is specially done to leverage the release
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# tools that automatically update the tox.ini when projects
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# are released.
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url=$(sed -n 's/^.*{env:TOX_CONSTRAINTS_FILE\:\([^}]*\)}.*$/\1/p' $TOX_INI | head -n1)
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log "tox.ini indicates '${url}' as fallback."
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download "${url}" "${DESTINATION}"
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}
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log "Generating local constraints file..."
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if tox_constraints_is_not_null; then
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log "TOX_CONSTRAINTS_FILE is defined as '${TOX_CONSTRAINTS_FILE:-""}'"
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copy_uc || download_uc || fail "Failed to copy or download file indicated in TOX_CONSTRAINTS_FILE."
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else
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log "TOX_CONSTRAINTS_FILE is not defined. Using fallback strategies."
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copy_new_requirements_uc || \
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download_from_tox_ini_url || \
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fail "Failed to download upper-constraints.txt from either CI or tox.ini location."
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fi
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