jenkins.sh: use absolute paths instead of 'cd ..' and $PWD

Change-Id: If79d283fa0a559bb7ea319c513d09466eff523d1

contrib/jenkins.sh

@@ -12,18 +12,22 @@ if [ $sysmobts = "no" -a $sysmodsp = "yes" ]; then
    exit 0
 fi
 
-rm -rf deps/install
-mkdir deps || true
-cd deps
+base="$PWD"
+deps="$base/deps"
+inst="$deps/install"
+
+rm -rf "$inst"
+mkdir "$deps" || true
+cd "$deps"
 osmo-deps.sh libosmocore
 
 cd libosmocore
 autoreconf --install --force
-./configure --prefix=$PWD/../install
+./configure --prefix="$inst"
 $MAKE $PARALLEL_MAKE install
 
 # Install the API
-cd ../
+cd "$deps"
 if ! test -d layer1-api;
 then
   git clone git://git.sysmocom.de/sysmo-bts/layer1-api.git layer1-api
@@ -32,16 +36,17 @@ fi
 cd layer1-api
 git fetch origin
 git reset --hard origin/master
-mkdir -p $PWD/../install/include/sysmocom/femtobts/
-cp include/*.h ../install/include/sysmocom/femtobts/
+api_incl="$inst/include/sysmocom/femtobts/"
+mkdir -p "$api_incl"
+cp include/*.h "$api_incl"
 
-cd ../../
+cd "$base"
 autoreconf --install --force
 BTS_CONFIG="--enable-sysmocom-bts=$sysmobts --enable-sysmocom-dsp=$sysmodsp"
 if [ $sysmobts = "no" ]; then
   BTS_CONFIG="$BTS_CONFIG --enable-vty-tests"
 fi
 
-PKG_CONFIG_PATH=$PWD/deps/install/lib/pkgconfig ./configure $BTS_CONFIG
-PKG_CONFIG_PATH=$PWD/deps/install/lib/pkgconfig $MAKE $PARALLEL_MAKE
-DISTCHECK_CONFIGURE_FLAGS="$BTS_CONFIG" AM_DISTCHECK_CONFIGURE_FLAGS="$BTS_CONFIG" PKG_CONFIG_PATH=$PWD/deps/install/lib/pkgconfig LD_LIBRARY_PATH=$PWD/deps/install/lib $MAKE distcheck
+PKG_CONFIG_PATH="$inst/lib/pkgconfig" ./configure $BTS_CONFIG
+PKG_CONFIG_PATH="$inst/lib/pkgconfig" $MAKE $PARALLEL_MAKE
+DISTCHECK_CONFIGURE_FLAGS="$BTS_CONFIG" AM_DISTCHECK_CONFIGURE_FLAGS="$BTS_CONFIG" PKG_CONFIG_PATH="$inst/lib/pkgconfig" LD_LIBRARY_PATH="$inst/lib" $MAKE distcheck