Red Bear OS — microkernel OS in Rust, based on Redox

Derivative of Redox OS (https://www.redox-os.org) adding:
- AMD GPU driver (amdgpu) via LinuxKPI compat layer
- ext4 filesystem support (ext4d scheme daemon)
- ACPI fixes for AMD bare metal (x2APIC, DMAR, IVRS, MCFG)
- Custom branding (hostname, os-release, boot identity)

Build system is full upstream Redox with RBOS overlay in local/.
Patches for kernel, base, and relibc are symlinked from local/patches/
and protected from make clean/distclean. Custom recipes live in
local/recipes/ with symlinks into the recipes/ search path.

Build:  make all CONFIG_NAME=redbear-full
Sync:   ./local/scripts/sync-upstream.sh

scripts/changelog.sh

@@ -0,0 +1,80 @@
+#!/usr/bin/env bash
+
+# This script show the changelog of all Red Bear OS components
+
+set -e
+
+LAST_RELEASE_TAG="$(git describe --tags --abbrev=0)"
+LAST_RELEASE_TIMESTAMP="$(git log --format="%ct" -1 "${LAST_RELEASE_TAG}")"
+echo "Last release: ${LAST_RELEASE_TAG} at ${LAST_RELEASE_TIMESTAMP}"
+
+REPOS=(
+    redox=.
+    cookbook=cookbook
+    rust=rust
+)
+
+if [ "$1" = "--summary" ]
+then
+    summary=true
+elif [ "$1" = "--mdlinks" ]
+then
+    mdlinks=true
+fi
+
+for package in $(installer/target/release/redox_installer --list-packages -c config/$(uname -m)/desktop.toml)
+do
+    package_source="$(target/release/find_recipe ${package})"
+    REPOS+=("${package}=${package_source}/source")
+done
+
+# TODO: resolve dependencies instead of manually adding these initfs packages
+for package in init logd ramfs randd zerod
+do
+    package_source="$(target/release/find_recipe ${package})"
+    REPOS+=("${package}=${package_source}/source")
+done
+
+for name_repo in "${REPOS[@]}"
+do
+    name="$(echo "${name_repo}" | cut -d "=" -f 1)"
+    repo="$(echo "${name_repo}" | cut -d "=" -f 2-)"
+    if [ "${summary}" = true ]
+    then
+        echo
+        echo "### ${name}"
+        echo
+    elif [ "${mdlinks}" = true ]
+    then
+        echo -n "- [${name}]"
+    else
+        echo -en "\x1B[1m${name}:\x1B[0m "
+    fi
+
+    if [ -e "${repo}/.git" ]
+    then
+        remote="$(git -C "${repo}" remote get-url origin)"
+        website="${remote%.*}"
+        before="$(git -C "${repo}" log --until="${LAST_RELEASE_TIMESTAMP}" --format="%h" -1)"
+        after="$(git -C "${repo}" log --since="${LAST_RELEASE_TIMESTAMP}" --format="%h" -1)"
+        if [ -z "${before}" ]
+        then
+            echo "New repository at ${website}"
+        elif [ -z "${after}" ]
+        then
+            echo "No changes"
+        else
+            if [ "${summary}" = true ]
+            then
+                git -C "${repo}" log ${before}...${after} --oneline
+            elif [ "${mdlinks}" = true ]
+            then
+                echo "(${website}/-/compare/${before}...${after})"
+            else
+                echo "${website}/-/compare/${before}...${after}"
+            fi
+        fi
+    else
+        echo "Not a git repository"
+    fi
+done