WIP: Searching for a stable way for a "Bash script to get the full path to itself" agnostic of the way the script is called / sourced from somewhere and the system hosting bash.
See https://stackoverflow.com/q/242538/3320256 and https://stackoverflow.com/q/4774054/3320256
| #!/bin/bash | |
| set -o nounset # Exit if undefined variable is used. | |
| set -o errexit # Exit after first command failure. | |
| set -o pipefail # Exit if any part of the pipe fails. | |
| # set -o xtrace | |
| echo "--- ${BASH_SOURCE[0]:-NOTSET}" | |
| echo "See https://stackoverflow.com/q/242538/3320256 and https://stackoverflow.com/q/4774054/3320256" | |
| echo -e " " | |
| echo "--- direct variant:" | |
| ./nightly/inner.sh | |
| echo -e " " | |
| echo "--- source variant:" | |
| . ./nightly/inner.sh | |
| __dir="$(dirname "$(readlink -f "${BASH_SOURCE[0]:-NOTSET}")")" | |
| BASEDIR="$("${__dir}/nightly/sets.sh")" | |
| echo -e " " | |
| echo "BASEDIR: $BASEDIR" |
| #!/bin/bash | |
| # nightly/inner.sh | |
| set -o nounset # Exit if undefined variable is used. | |
| set -o errexit # Exit after first command failure. | |
| set -o pipefail # Exit if any part of the pipe fails. | |
| # set -o xtrace | |
| set +o nounset | |
| echo "called from "$(pwd)/$line | |
| set -o nounset | |
| echo "\$0 "$(readlink -f "$0") | |
| echo "BASH_SOURCE "$(readlink -f "$BASH_SOURCE") | |
| echo "BASH_SOURCE index 0 "$(readlink -f "${BASH_SOURCE[0]:-NOTSET}") | |
| echo "BASH_SOURCE index 1 "$(readlink -f "${BASH_SOURCE[1]:-NOTSET}") | |
| echo "~ index 0 folder "$(dirname "$(readlink -f "${BASH_SOURCE[0]:-NOTSET}")") |
| #!/bin/bash | |
| # nightly/sets.sh | |
| set -o nounset # Exit if undefined variable is used. | |
| set -o errexit # Exit after first command failure. | |
| set -o pipefail # Exit if any part of the pipe fails. | |
| # set -o xtrace | |
| cd "$(dirname "$(readlink -f "$0")")/../.." || exit; pwd |