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buildtools-tarball: fix unbound variable issues under 'set -u'

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When Bash runs with 'set -u' (nounset), accessing an unset variable
directly (e.g. [ -z "$SSL_CERT_FILE" ]) causes a fatal "unbound variable"
error. As a result, the fallback logic to set SSL_CERT_FILE/SSL_CERT_DIR
is never triggered and the script aborts.

The current code assumes these variables may be unset or empty, but does
not guard against 'set -u'. This breaks builds in stricter shell
environments or when users explicitly enable 'set -u'.

Fix this by using parameter expansion with a default value, e.g.
"${SSL_CERT_FILE:-}", so that unset variables are treated as empty
strings. This preserves the intended logic (respect host env first, then
CAFILE/CAPATH, then buildtools defaults) and makes the script robust
under 'set -u'.

(From OE-Core rev: 4cf131ebd157b79226533b5a5074691dd0e1a4ab)

Signed-off-by: Haixiao Yan <haixiao.yan.cn@windriver.com>
Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
(cherry picked from commit 4d880c2eccd534133a2a4e6579d955605c0956ec)
Signed-off-by: Steve Sakoman <steve@sakoman.com>
This commit is contained in:
Haixiao Yan
2025-09-16 21:19:18 +08:00
committed by Steve Sakoman
parent 54578cd039
commit e3ce89324d
4 changed files with 22 additions and 22 deletions
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4
meta/recipes-devtools/python/python3-requests/environment.d-python3-requests.sh
View File

@@ -1,7 +1,7 @@
# Respect host env REQUESTS_CA_BUNDLE first, then auto-detected host cert, then cert in buildtools
# CAFILE/CAPATH is auto-deteced when source buildtools
if [ -z "$REQUESTS_CA_BUNDLE" ]; then
if [ -n "$CAFILE" ];then
if [ -z "${REQUESTS_CA_BUNDLE:-}" ]; then
if [ -n "${CAFILE:-}" ];then
export REQUESTS_CA_BUNDLE="$CAFILE"
elif [ -e "${OECORE_NATIVE_SYSROOT}/etc/ssl/certs/ca-certificates.crt" ];then
export REQUESTS_CA_BUNDLE="${OECORE_NATIVE_SYSROOT}/etc/ssl/certs/ca-certificates.crt"