[gentoo-dev] [PATCH] bzr.eclass: Respect the EVCS_UMASK variable.

["Ulrich Müller" <ulm@gentoo.org>]

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Bug: https://bugs.gentoo.org/497798
Signed-off-by: Ulrich Müller <ulm@gentoo.org>
---
 eclass/bzr.eclass | 22 ++++++++++++++++++++--
 1 file changed, 20 insertions(+), 2 deletions(-)

diff --git a/eclass/bzr.eclass b/eclass/bzr.eclass
index 10bd6bc7e5a..598a0f87fe6 100644
--- a/eclass/bzr.eclass
+++ b/eclass/bzr.eclass
@@ -140,6 +140,17 @@ EXPORT_FUNCTIONS src_unpack
 # by users.
 : ${EBZR_OFFLINE=${EVCS_OFFLINE}}
 
+# @ECLASS-VARIABLE: EVCS_UMASK
+# @DEFAULT_UNSET
+# @DESCRIPTION:
+# Set this variable to a custom umask.  This is intended to be set by
+# users.  By setting this to something like 002, it can make life easier
+# for people who do development as non-root (but are in the portage
+# group), and then switch over to building with FEATURES=userpriv.
+# Or vice-versa.  Shouldn't be a security issue here as anyone who has
+# portage group write access already can screw the system over in more
+# creative ways.
+
 # @ECLASS-VARIABLE: EBZR_WORKDIR_CHECKOUT
 # @DEFAULT_UNSET
 # @DESCRIPTION:
@@ -197,7 +208,7 @@ bzr_update() {
 # working copy.
 bzr_fetch() {
 	local repo_dir branch_dir
-	local save_sandbox_write=${SANDBOX_WRITE}
+	local save_sandbox_write=${SANDBOX_WRITE} save_umask
 
 	[[ -n ${EBZR_REPO_URI} ]] || die "${EBZR}: EBZR_REPO_URI is empty"
 
@@ -214,6 +225,10 @@ bzr_fetch() {
 	repo_dir=${EBZR_STORE_DIR}/${EBZR_PROJECT}
 	branch_dir=${repo_dir}${EBZR_BRANCH:+/${EBZR_BRANCH}}
 
+	if [[ -n ${EVCS_UMASK} ]]; then
+		save_umask=$(umask)
+		umask "${EVCS_UMASK}" || die
+	fi
 	addwrite "${EBZR_STORE_DIR}"
 
 	if [[ ! -d ${branch_dir}/.bzr ]]; then
@@ -240,8 +255,11 @@ bzr_fetch() {
 		bzr_update "${EBZR_REPO_URI}" "${branch_dir}"
 	fi
 
-	# Restore sandbox environment
+	# Restore sandbox environment and umask
 	SANDBOX_WRITE=${save_sandbox_write}
+	if [[ -n ${save_umask} ]]; then
+		umask "${save_umask}" || die
+	fi
 
 	cd "${branch_dir}" || die "${EBZR}: can't chdir to ${branch_dir}"
 
-- 
2.23.0

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