feat: add autogenerated etc/LICENSES to rootfs

CHANGELOG.md

@@ -7,6 +7,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ## [Unreleased]
 ### Changed
 - Bump dependencies versions
+- Added rootfs.ext2:/etc/LICENSES file listing licenses of all installed packages
 
 ## [0.16.1] - 2024-08-12
 ### Fixed

Makefile

@@ -16,7 +16,7 @@
 
 MAJOR := 0
 MINOR := 16
-PATCH := 1
+PATCH := 2
 LABEL :=
 VERSION := $(MAJOR).$(MINOR).$(PATCH)$(LABEL)
 

fs/Dockerfile

@@ -30,25 +30,52 @@ RUN mkdir benchmarks && cd benchmarks && \
     riscv64-linux-gnu-gcc-12 -O2 -o dhrystone dhry_1.c dhry_2.c -lm
 
 # Final image
-FROM --platform=linux/riscv64 riscv64/ubuntu:22.04
+FROM --platform=linux/riscv64 riscv64/ubuntu:22.04 as rootfs
 ARG TOOLS_DEB=machine-emulator-tools-v0.15.0.deb
 ADD ${TOOLS_DEB} /tmp/
 RUN apt-get update && \
-    apt-get install -y --no-install-recommends \
-    busybox-static=1:1.30.1-7ubuntu3 \
-    coreutils=8.32-4.1ubuntu1.2 \
-    bash=5.1-6ubuntu1.1 \
-    psmisc=23.4-2build3 \
-    bc=1.07.1-3build1 \
-    curl=7.81.0-1ubuntu1.17 \
-    device-tree-compiler=1.6.1-1 \
-    jq=1.6-2.1ubuntu3 \
-    lua5.4=5.4.4-1 \
-    lua-socket=3.0~rc1+git+ac3201d-6 \
-    xxd=2:8.2.3995-1ubuntu2.16 \
-    file=1:5.41-3ubuntu0.1 \
-    /tmp/${TOOLS_DEB} \
+    DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends \
+    	busybox-static=1:1.30.1-7ubuntu3 \
+    	coreutils=8.32-4.1ubuntu1.2 \
+    	bash=5.1-6ubuntu1.1 \
+    	psmisc=23.4-2build3 \
+    	bc=1.07.1-3build1 \
+    	curl=7.81.0-1ubuntu1.17 \
+    	device-tree-compiler=1.6.1-1 \
+    	jq=1.6-2.1ubuntu3 \
+    	lua5.4=5.4.4-1 \
+    	lua-socket=3.0~rc1+git+ac3201d-6 \
+    	xxd=2:8.2.3995-1ubuntu2.18 \
+    	file=1:5.41-3ubuntu0.1 \
+    	/tmp/${TOOLS_DEB} \
     && \
     rm -rf /var/lib/apt/lists/* /tmp/${TOOLS_DEB}
 COPY --chown=root:root --from=cross-builder /tmp/build-extra/benchmarks/whetstone /usr/bin/
 COPY --chown=root:root --from=cross-builder /tmp/build-extra/benchmarks/dhrystone /usr/bin/
+
+# Prepare tools we need to produce LICENSES
+FROM rootfs as tools
+RUN apt-get update && \
+    DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends \
+        git \
+        ca-certificates \
+        csvkit \
+	&& \
+    git clone --depth 1 --branch v0.1-ctsi-1 https://github.com/cartesi/dpkg-licenses.git /tmp/dpkg-licenses && \
+    rm -rf /var/lib/apt/lists/* /tmp/${TOOLS_DEB}
+
+# Produce LICENSES file in an intermediate format
+FROM rootfs as verbose_licenses
+COPY --from=tools /tmp/dpkg-licenses/ /tmp/dpkg-licenses/
+RUN /tmp/dpkg-licenses/dpkg-licenses -c > /tmp/LICENSES
+
+# Produce LICENSES file in final format
+FROM tools as licenses
+COPY --from=verbose_licenses /tmp/LICENSES /tmp/LICENSES
+RUN csvcut -c 2,6 < /tmp/LICENSES | csvjson --snifflimit 0 | jq -r '.[] | .Name + "\t" + .Licenses' > /etc/LICENSES && \
+    echo "whetstone\tWhetstone" >> /etc/LICENSES && \
+    echo "dhrystone\tunknown" >> /etc/LICENSES
+
+# Copy it to rootfs and we are done
+FROM rootfs
+COPY --from=licenses /etc/LICENSES /etc/LICENSES