dracut/0047-Align-dev_unit_name-with-systemd-s-function.patch

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From e3eec4b8a21a640b7557678b92716a32f8d3dadf Mon Sep 17 00:00:00 2001
From: Thorsten Behrens <tbehrens@suse.com>
Date: Thu, 11 Dec 2014 15:46:08 +0100
Subject: [PATCH] Align dev_unit_name() with systemd's function.
Add more corner cases from systemd's
unit_name_from_path_instance() C function.
Signed-off-by: Thorsten Behrens <tbehrens@suse.com>
Signed-off-by: Thomas Renninger <trenn@suse.de>
---
modules.d/99base/dracut-lib.sh | 24 ++++++++++++++++++------
1 file changed, 18 insertions(+), 6 deletions(-)
diff --git a/modules.d/99base/dracut-lib.sh b/modules.d/99base/dracut-lib.sh
index f7cffc4..5c1504f 100755
--- a/modules.d/99base/dracut-lib.sh
+++ b/modules.d/99base/dracut-lib.sh
@@ -866,18 +866,30 @@ wait_for_mount()
} >> "$hookdir/emergency/90-${_name}.sh"
}
+# get a systemd-compatible unit name from a path
+# (mimicks unit_name_from_path_instance())
dev_unit_name()
{
+ local dev="$1"
+
if command -v systemd-escape >/dev/null; then
- systemd-escape -p "$1"
+ systemd-escape -p "$dev"
return
fi
- _name="${1%%/}"
- _name="${_name##/}"
- _name="$(str_replace "$_name" '-' '\x2d')"
- _name="$(str_replace "$_name" '/' '-')"
- echo "$_name"
+ if [ "$dev" = "/" -o -z "$dev" ]; then
+ printf -- "-"
+ exit 0
+ fi
+
+ dev="${1%%/}"
+ dev="${dev##/}"
+ dev="$(str_replace "$dev" '\' '\x5c')"
+ dev="$(str_replace "$dev" '-' '\x2d')"
+ dev=${dev/#\./\\x2e}
+ dev="$(str_replace "$dev" '/' '-')"
+
+ printf -- "%s" "$dev"
}
# wait_for_dev <dev>