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-rw-r--r--scripts/image_signing/common.sh28
1 files changed, 21 insertions, 7 deletions
diff --git a/scripts/image_signing/common.sh b/scripts/image_signing/common.sh
index 62dc362a..657b5be2 100644
--- a/scripts/image_signing/common.sh
+++ b/scripts/image_signing/common.sh
@@ -75,14 +75,28 @@ die() {
exit 1
}
-# Extract and return board name from /etc/lsb-release.
-# Args: rootfs
+# Usage: lsbval path-to-lsb-file key
+# Returns the value for the given lsb-release file variable.
+lsbval() {
+ local lsbfile="$1"
+ local key="$2"
+ grep "^${key}=" "${lsbfile}" | sed "s/^${key}=//"
+}
+
+# Usage: get_board_from_lsb_release rootfs
+# Returns the exact board name from /etc/lsb-release. This may contain
+# dashes or other characters not suitable for variable names. See the
+# next function for that.
get_board_from_lsb_release() {
- local rootfs=$1
- # The cuts turn e.g. x86-foo as a well as x86-foo-pvtkeys into x86_foo.
- local board=$(grep CHROMEOS_RELEASE_BOARD= "${rootfs}/etc/lsb-release" | \
- cut -d = -f 2 | cut -d - -f 1,2 --output-delimiter=_)
- echo "${board}"
+ local rootfs="$1"
+ lsbval "${rootfs}/etc/lsb-release" CHROMEOS_RELEASE_BOARD
+}
+
+# Usage: get_boardvar_from_lsb_release rootfs
+# Returns the board name from /etc/lsb-release in a mangled form that can
+# be used in variable names. e.g. dashes are turned into underscores.
+get_boardvar_from_lsb_release() {
+ get_board_from_lsb_release "$@" | sed 's:[-]:_:g'
}
# This will override the trap set in common_minmal.sh