From: Harald Hoyer <harald@redhat.com>
Date: Wed, 25 May 2016 12:49:34 +0000 (+0200)
Subject: dracut-functions.sh: add str_starts() and str_ends()
X-Git-Tag: 033-502~107
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6656e1547f875253d1499bcd06ae0f6440a087c6;p=thirdparty%2Fdracut.git

dracut-functions.sh: add str_starts() and str_ends()
---

diff --git a/dracut-functions.sh b/dracut-functions.sh
index d71ff6768..4a9729c77 100755
--- a/dracut-functions.sh
+++ b/dracut-functions.sh
@@ -29,6 +29,10 @@ fi
 
 # Generic substring function.  If $2 is in $1, return 0.
 strstr() { [[ $1 = *$2* ]]; }
+# returns OK if $1 contains literal string $2 at the beginning, and isn't empty
+str_starts() { [ "${1#"$2"*}" != "$1" ]; }
+# returns OK if $1 contains literal string $2 at the end, and isn't empty
+str_ends() { [ "${1%*"$2"}" != "$1" ]; }
 
 # helper function for check() in module-setup.sh
 # to check for required installed binaries