build: Simplified the calling of cargo.sh

HACKING.md

@@ -42,7 +42,7 @@ Use the `cargo.sh` script for maintaining the Cargo part of the build. The scrip
 
 ```
 cd build_dir
-sh /source_path/cargo.sh /source_path '' test
+sh /source_path/cargo.sh '' test
 ```
 
 ### Cargo dependencies
@@ -53,6 +53,6 @@ Dependencies must be specified in `Cargo.toml` with 2 numbers: "major.minor". Si
 
 ```
 cd build_dir
-sh /source_path/cargo.sh /source_path '' update
+sh /source_path/cargo.sh '' update
 ninja test
 ```

cargo.sh

@@ -6,16 +6,16 @@
 
 set -e
 
-SOURCE_DIR="$1"
+SCRIPT_PATH=`realpath $0`
+SOURCE_DIR=`dirname $0`
 
 export CARGO_TARGET_DIR=`pwd`
-if [ ! -z ${2} ]; then
+if [ ! -z ${1} ]; then
-    OUT_PATH=`realpath "${2}"`
+    OUT_PATH=`realpath "${1}"`
 fi
 
 cd $SOURCE_DIR
 shift
-shift
 cargo $BUILD_ARG $@
 
 if [ ! -z ${OUT_PATH} ]; then

src/meson.build

@@ -60,13 +60,13 @@ rslibs = custom_target(
     output: ['librs.a'],
     install: false,
     console: true,
-    command: [cargo_script, '@CURRENT_SOURCE_DIR@', '@OUTPUT@', 'build']
+    command: [cargo_script, '@OUTPUT@', 'build']
 )
 
 test(
     'rstest',
     cargo_script,
-    args: [meson.source_root(), '', 'test']
+    args: ['', 'test']
 )
 
 libsqueekboard = static_library('libsqueekboard',

tests/meson.build

@@ -51,7 +51,7 @@ foreach layout : ['us', 'nb', 'number']
     test(
         'test_layout_' + layout,
         cargo_script,
-        args: [meson.source_root(), '', 'run', '--example', 'test_layout', layout]
+        args: ['', 'run', '--example', 'test_layout', layout]
     )
 endforeach