script: target platform

Signed-off-by: CrazyMax <[email protected]>

Author: crazy-max

scripts/target-platform

@@ -0,0 +1,106 @@
+#!/usr/bin/env bash
+
+: "${TARGETPLATFORM=}"
+: "${TARGETOS=}"
+: "${TARGETARCH=}"
+: "${TARGETVARIANT=}"
+
+# get TARGETOS/TARGETARCH/TARGETVARIANT from TARGETPLATFORM
+if [ -n "$TARGETPLATFORM" ]; then
+  os="$(echo $TARGETPLATFORM | cut -d"/" -f1)"
+  arch="$(echo $TARGETPLATFORM | cut -d"/" -f2)"
+  if [ -n "$os" ] && [ -n "$arch" ]; then
+    TARGETOS="$os"
+    TARGETARCH="$arch"
+    case "$arch" in
+      "arm")
+        case "$(echo $TARGETPLATFORM | cut -d"/" -f3)" in
+          "v5")
+            TARGETVARIANT="v5"
+            ;;
+          "v6")
+            TARGETVARIANT="v6"
+            ;;
+          "v8")
+            TARGETVARIANT="v8"
+            ;;
+          *)
+            TARGETVARIANT="v7"
+            ;;
+        esac
+        ;;
+      "mips"*)
+        TARGETVARIANT="$(echo $TARGETPLATFORM | cut -d"/" -f3)"
+        ;;
+    esac
+  fi
+fi
+
+# current arch/variant
+CUROS="linux"
+case "$(uname -m)" in
+  "x86_64")
+    CURARCH="amd64"
+    ;;
+  "i386")
+    CURARCH="386"
+    ;;
+  "aarch64")
+    CURARCH="arm64"
+    ;;
+  "arm64")
+    CURARCH="arm64"
+    ;;
+  "armv8l")
+    CURARCH="arm"
+    CURVARIANT="v8"
+    ;;
+  "armv7l")
+    CURARCH="arm"
+    CURVARIANT="v7"
+    ;;
+  "armv6l")
+    CURARCH="arm"
+    CURVARIANT="v6"
+    ;;
+  "armv5l")
+    CURARCH="arm"
+    CURVARIANT="v5"
+    ;;
+  "riscv64")
+    CURARCH="riscv64"
+    ;;
+  "ppc64le")
+    CURARCH="ppc64le"
+    ;;
+  "s390x")
+    CURARCH="s390x"
+    ;;
+  "mips")
+    CURARCH="mips"
+    ;;
+  "mipsle")
+    CURARCH="mipsle"
+    ;;
+  "mips64")
+    CURARCH="mips64"
+    ;;
+  "mips64le")
+    CURARCH="mips64le"
+    ;;
+esac
+CURPLATFORM="$CUROS/$CURARCH"
+if [ -n "$CURVARIANT" ]; then
+  CURPLATFORM="$CURPLATFORM/$CURVARIANT"
+fi
+
+# use current arch if empty
+if [ -z "$TARGETARCH" ]; then
+  TARGETOS="linux"
+  TARGETARCH="$CURARCH"
+  TARGETPLATFORM="$TARGETOS/$TARGETARCH"
+  if [ -n "$CURVARIANT" ]; then
+    TARGETVARIANT="$CURVARIANT"
+    TARGETPLATFORM="$TARGETPLATFORM/$TARGETVARIANT"
+  fi
+fi