adds version.sh to do some version manipulation during build

.drone.yml

@@ -21,6 +21,7 @@ steps:
   - name: build amd64
     image: rust:1.73-alpine
     commands:
+      - ./version.sh
       - apk add --no-cache musl-dev gcc-aarch64-none-elf
       - mkdir /artifacts/mouse-amd64
       - cp LICENSE.txt /artifacts/mouse-amd64/
@@ -35,9 +36,6 @@ steps:
       - cd /artifacts && tar -cvzf mouse-amd64.tar.gz mouse-amd64/*
       - cd /artifacts && tar -cvzf mouse-arm64.tar.gz mouse-arm64/*
     environment:
-      CARGO_PKG_VERSION: ${DRONE_TAG##v}
-      CARGO_PKG_LICENSE: "Mozilla Public License Version 2.0"
-      CARGO_PKG_LICENSE_FILE: LICENSE.txt
       CARGO_TARGET_AARCH64_UNKNOWN_LINUX_MUSL_LINKER: /usr/bin/aarch64-none-elf-gcc 
     volumes:
       - name: artifacts

version.sh

@@ -0,0 +1,13 @@
+#!/bin/bash
+# Get last created tag
+LTCOMMIT=$(git rev-list --abbrev-commit --tags --max-count=1)
+LTAG=$(git describe --abbrev=0 --tags ${LTCOMMIT} 2>/dev/null || true)
+ADC=${DRONE_COMMIT:0:7}
+
+if [[ "${LTCOMMIT}" == "${ADC}" ]]; then
+	VERSION="${DRONE_TAG##v}"
+else
+	VERSION="${LTAG}-next-${ADV}"
+fi
+
+sed -i "s/0\\.0\\.0/${VERSION}/" Cargo.toml