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tools: export.sh: fix compatibility with dash shell

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* fix constructs invalid in dash
* clean shellcheck warnings and disable false positive ones

Closes https://github.com/espressif/esp-idf/issues/5366
This commit is contained in:
Ivan Grokhotkov 2020-06-08 19:14:48 +02:00
parent 0785d41c93
commit 9b3aae1d32
1 changed files with 23 additions and 15 deletions
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38
export.sh
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@ -1,6 +1,6 @@
# This script should be sourced, not executed.
function realpath_int() {
realpath_int() {
wdir="$PWD"; [ "$PWD" = "/" ] && wdir=""
arg=$1
case "$arg" in
@ -12,24 +12,30 @@ function realpath_int() {
}
function idf_export_main() {
idf_export_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...
if [[ -n "${BASH_SOURCE}" && ( "${BASH_SOURCE[0]}" == "${0}" ) ]]; then
# shellcheck disable=SC2128,SC2169,SC2039 # ignore array expansion warning
if [ -n "${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}" ]]
if [ -z "${IDF_PATH}" ]
then
# IDF_PATH not set in the environment.
# If using bash or zsh, try to guess IDF_PATH from script location.
self_path=""
if [[ -n "${BASH_SOURCE}" ]]
# shellcheck disable=SC2128 # ignore array expansion warning
if [ -n "${BASH_SOURCE}" ]
then
self_path="${BASH_SOURCE}"
elif [[ -n "${ZSH_VERSION}" ]]
elif [ -n "${ZSH_VERSION}" ]
then
self_path="${(%):-%x}"
else
@ -38,28 +44,29 @@ function idf_export_main() {
return 1
fi
# shellcheck disable=SC2169,SC2169,SC2039 # unreachable with 'dash'
if [[ "$OSTYPE" == "darwin"* ]]; then
# convert possibly relative path to absolute
script_dir="$(realpath_int ${self_path})"
script_dir="$(realpath_int "${self_path}")"
# resolve any ../ references to make the path shorter
script_dir="$(cd ${script_dir}; pwd)"
script_dir="$(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 ${script_name})"
script_name="$(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}" ]]
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" ]]
if [ ! -f "${IDF_PATH}/tools/idf.py" ] || [ ! -f "${IDF_PATH}/tools/idf_tools.py" ]
then
echo "IDF_PATH is set to '${IDF_PATH}', but it doesn't look like an ESP-IDF directory."
echo "If you have set IDF_PATH manually, check if the path is correct."
@ -76,11 +83,11 @@ function idf_export_main() {
# Call idf_tools.py to export tool paths
export IDF_TOOLS_EXPORT_CMD=${IDF_PATH}/export.sh
export IDF_TOOLS_INSTALL_CMD=${IDF_PATH}/install.sh
idf_exports=$(${IDF_PATH}/tools/idf_tools.py export) || return 1
idf_exports=$("${IDF_PATH}/tools/idf_tools.py" export) || return 1
eval "${idf_exports}"
echo "Checking if Python packages are up to date..."
python ${IDF_PATH}/tools/check_python_dependencies.py || return 1
python "${IDF_PATH}/tools/check_python_dependencies.py" || return 1
# Allow calling some IDF python tools without specifying the full path
@ -90,9 +97,10 @@ function idf_export_main() {
IDF_ADD_PATHS_EXTRAS="${IDF_ADD_PATHS_EXTRAS}:${IDF_PATH}/components/partition_table/"
export PATH="${IDF_ADD_PATHS_EXTRAS}:${PATH}"
if [[ -n "$BASH" ]]
if [ -n "$BASH" ]
then
path_prefix=${PATH%%${old_path}}
# shellcheck disable=SC2169,SC2039 # unreachable with 'dash'
paths="${path_prefix//:/ }"
if [ -n "${paths}" ]; then
echo "Added the following directories to PATH:"