esp-idf/export.sh
Marc Finet 2a3cdb090f export: avoid error on unbound variable
I the shell has `set -u` (to abort on unbound variable), sourcing
export.sh currently fails when IDF_EXPORT_QUIET or IDF_PATH is not set:
> /path/to/esp-idf/export.sh:16: IDF_EXPORT_QUIET: unbound variable

This commit sets a default empty value to those variable, as done
in 16731833fb (which forgot IDF_PATH as it's usually set, the other
variable landed later in the file).
2023-03-17 18:46:42 +01:00

189 lines
6.1 KiB
Bash

# This script should be sourced, not executed.
__realpath() {
wdir="$PWD"; [ "$PWD" = "/" ] && wdir=""
arg=$1
case "$arg" in
/*) scriptdir="${arg}";;
*) scriptdir="$wdir/${arg#./}";;
esac
scriptdir="${scriptdir%/*}"
echo "$scriptdir"
}
__verbose() {
[ -n "${IDF_EXPORT_QUIET-}" ] && return
echo "$@"
}
__main() {
# The file doesn't have executable permissions, so this shouldn't really happen.
# Doing this in case someone tries to chmod +x it and execute...
# shellcheck disable=SC2128,SC2169,SC2039 # ignore array expansion warning
if [ -n "${BASH_SOURCE-}" ] && [ "${BASH_SOURCE[0]}" = "${0}" ]
then
echo "This script should be sourced, not executed:"
# shellcheck disable=SC2039 # reachable only with bash
echo ". ${BASH_SOURCE[0]}"
return 1
fi
if [ -z "${IDF_PATH-}" ]
then
# IDF_PATH not set in the environment.
# If using bash or zsh, try to guess IDF_PATH from script location.
self_path=""
# shellcheck disable=SC2128 # ignore array expansion warning
if [ -n "${BASH_SOURCE-}" ]
then
self_path="${BASH_SOURCE}"
elif [ -n "${ZSH_VERSION-}" ]
then
self_path="${(%):-%x}"
else
echo "Could not detect IDF_PATH. Please set it before sourcing this script:"
echo " export IDF_PATH=(add path here)"
return 1
fi
# shellcheck disable=SC2169,SC2169,SC2039 # unreachable with 'dash'
if [[ "$OSTYPE" == "darwin"* ]]; then
# convert possibly relative path to absolute
script_dir="$(__realpath "${self_path}")"
# resolve any ../ references to make the path shorter
script_dir="$(cd "${script_dir}" || exit 1; pwd)"
else
# convert to full path and get the directory name of that
script_name="$(readlink -f "${self_path}")"
script_dir="$(dirname "${script_name}")"
fi
export IDF_PATH="${script_dir}"
echo "Setting IDF_PATH to '${IDF_PATH}'"
else
# IDF_PATH came from the environment, check if the path is valid
if [ ! -d "${IDF_PATH}" ]
then
echo "IDF_PATH is set to '${IDF_PATH}', but it is not a valid directory."
echo "If you have set IDF_PATH manually, check if the path is correct."
return 1
fi
# Check if this path looks like an IDF directory
if [ ! -f "${IDF_PATH}/tools/idf.py" ] || [ ! -f "${IDF_PATH}/tools/idf_tools.py" ]
then
echo "IDF_PATH is set to '${IDF_PATH}', but it doesn't look like an ESP-IDF directory."
echo "If you have set IDF_PATH manually, check if the path is correct."
return 1
fi
# The varible might have been set (rather than exported), re-export it to be sure
export IDF_PATH="${IDF_PATH}"
fi
old_path="$PATH"
echo "Detecting the Python interpreter"
. "${IDF_PATH}/tools/detect_python.sh"
__verbose "Adding ESP-IDF tools to PATH..."
# Call idf_tools.py to export tool paths
export IDF_TOOLS_EXPORT_CMD=${IDF_PATH}/export.sh
export IDF_TOOLS_INSTALL_CMD=${IDF_PATH}/install.sh
idf_exports=$("$ESP_PYTHON" "${IDF_PATH}/tools/idf_tools.py" export) || return 1
eval "${idf_exports}"
__verbose "Using Python interpreter in $(which python)"
__verbose "Checking if Python packages are up to date..."
python "${IDF_PATH}/tools/check_python_dependencies.py" || return 1
# Allow calling some IDF python tools without specifying the full path
# ${IDF_PATH}/tools is already added by 'idf_tools.py export'
IDF_ADD_PATHS_EXTRAS="${IDF_PATH}/components/esptool_py/esptool"
IDF_ADD_PATHS_EXTRAS="${IDF_ADD_PATHS_EXTRAS}:${IDF_PATH}/components/espcoredump"
IDF_ADD_PATHS_EXTRAS="${IDF_ADD_PATHS_EXTRAS}:${IDF_PATH}/components/partition_table"
IDF_ADD_PATHS_EXTRAS="${IDF_ADD_PATHS_EXTRAS}:${IDF_PATH}/components/app_update"
export PATH="${IDF_ADD_PATHS_EXTRAS}:${PATH}"
if [ -n "$BASH" ]
then
path_prefix=${PATH%%${old_path}}
# shellcheck disable=SC2169,SC2039 # unreachable with 'dash'
if [ -n "${path_prefix}" ]; then
__verbose "Added the following directories to PATH:"
else
__verbose "All paths are already set."
fi
old_ifs="$IFS"
IFS=":"
for path_entry in ${path_prefix}
do
__verbose " ${path_entry}"
done
IFS="$old_ifs"
unset old_ifs
else
__verbose "Updated PATH variable:"
__verbose " ${PATH}"
fi
__verbose "Done! You can now compile ESP-IDF projects."
__verbose "Go to the project directory and run:"
__verbose ""
__verbose " idf.py build"
__verbose ""
}
__cleanup() {
unset old_path
unset paths
unset path_prefix
unset path_entry
unset IDF_ADD_PATHS_EXTRAS
unset idf_exports
unset ESP_PYTHON
unset SOURCE_ZSH
unset SOURCE_BASH
unset WARNING_MSG
unset __realpath
unset __main
unset __verbose
unset __enable_autocomplete
unset __cleanup
# Not unsetting IDF_PYTHON_ENV_PATH, it can be used by IDF build system
# to check whether we are using a private Python environment
return $1
}
__enable_autocomplete() {
click_version="$(python -c 'import click; print(click.__version__.split(".")[0])')"
if [[ click_version -lt 8 ]]
then
SOURCE_ZSH=source_zsh
SOURCE_BASH=source_bash
else
SOURCE_ZSH=zsh_source
SOURCE_BASH=bash_source
fi
if [ -n "${ZSH_VERSION-}" ]
then
autoload -Uz compinit && compinit -u
eval "$(env _IDF.PY_COMPLETE=$SOURCE_ZSH idf.py)" || echo "WARNING: Failed to load shell autocompletion for zsh version: $ZSH_VERSION!"
elif [ -n "${BASH_SOURCE-}" ]
then
WARNING_MSG="WARNING: Failed to load shell autocompletion for bash version: $BASH_VERSION!"
[[ ${BASH_VERSINFO[0]} -lt 4 ]] && { echo "$WARNING_MSG"; return; }
eval "$(env LANG=en _IDF.PY_COMPLETE=$SOURCE_BASH idf.py)" || echo "$WARNING_MSG"
fi
}
__main && __enable_autocomplete
__cleanup $?