test

vscode-server-linux-x64-web/bin/helpers/check-requirements.sh

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+#!/usr/bin/env sh
+#
+# Copyright (c) Microsoft Corporation. All rights reserved.
+#
+
+set -e
+
+# The script checks necessary server requirements for the classic server
+# scenarios. Currently, the script can exit with any of the following
+# 3 exit codes and should be handled accordingly on the extension side.
+#
+# 0: All requirements are met, use the default server.
+# 99: Unsupported OS, abort server startup with appropriate error message.
+# 100: Use legacy server.
+#
+
+# Do not remove this check.
+# Provides a way to skip the server requirements check from
+# outside the install flow. A system process can create this
+# file before the server is downloaded and installed.
+if [ -f "/tmp/vscode-skip-server-requirements-check" ]; then
+	echo "!!! WARNING: Skipping server pre-requisite check !!!"
+	echo "!!! Server stability is not guaranteed. Proceed at your own risk. !!!"
+	exit 0
+fi
+
+ARCH=$(uname -m)
+found_required_glibc=0
+found_required_glibcxx=0
+
+# Extract the ID value from /etc/os-release
+if [ -f /etc/os-release ]; then
+    OS_ID="$(cat /etc/os-release | grep -Eo 'ID=([^"]+)' | sed -n '1s/ID=//p')"
+    if [ "$OS_ID" = "nixos" ]; then
+        echo "Warning: NixOS detected, skipping GLIBC check"
+        exit 0
+    fi
+fi
+
+# Based on https://github.com/bminor/glibc/blob/520b1df08de68a3de328b65a25b86300a7ddf512/elf/cache.c#L162-L245
+case $ARCH in
+	x86_64) LDCONFIG_ARCH="x86-64";;
+	armv7l | armv8l) LDCONFIG_ARCH="hard-float";;
+	arm64 | aarch64)
+        BITNESS=$(getconf LONG_BIT)
+		if [ "$BITNESS" = "32" ]; then
+			# Can have 32-bit userland on 64-bit kernel
+			LDCONFIG_ARCH="hard-float"
+		else
+			LDCONFIG_ARCH="AArch64"
+		fi
+		;;
+esac
+
+if [ "$OS_ID" != "alpine" ]; then
+    if [ -f /sbin/ldconfig ]; then
+        # Look up path
+        libstdcpp_paths=$(/sbin/ldconfig -p | grep 'libstdc++.so.6')
+
+        if [ "$(echo "$libstdcpp_paths" | wc -l)" -gt 1 ]; then
+            libstdcpp_path=$(echo "$libstdcpp_paths" | grep "$LDCONFIG_ARCH" | awk '{print $NF}')
+        else
+            libstdcpp_path=$(echo "$libstdcpp_paths" | awk '{print $NF}')
+        fi
+    elif [ -f /usr/lib/libstdc++.so.6 ]; then
+	    # Typical path
+	    libstdcpp_path='/usr/lib/libstdc++.so.6'
+    elif [ -f /usr/lib64/libstdc++.so.6 ]; then
+	    # Typical path
+	    libstdcpp_path='/usr/lib64/libstdc++.so.6'
+    else
+	    echo "Warning: Can't find libstdc++.so or ldconfig, can't verify libstdc++ version"
+    fi
+
+    while [ -n "$libstdcpp_path" ]; do
+	    # Extracts the version number from the path, e.g. libstdc++.so.6.0.22 -> 6.0.22
+	    # which is then compared based on the fact that release versioning and symbol versioning
+	    # are aligned for libstdc++. Refs https://gcc.gnu.org/onlinedocs/libstdc++/manual/abi.html
+	    # (i-e) GLIBCXX_3.4.<release> is provided by libstdc++.so.6.y.<release>
+        libstdcpp_path_line=$(echo "$libstdcpp_path" | head -n1)
+        libstdcpp_real_path=$(readlink -f "$libstdcpp_path_line")
+        libstdcpp_version=$(grep -ao 'GLIBCXX_[0-9]*\.[0-9]*\.[0-9]*' "$libstdcpp_real_path" | sort -V | tail -1)
+        libstdcpp_version_number=$(echo "$libstdcpp_version" | sed 's/GLIBCXX_//')
+        if [ "$(printf '%s\n' "3.4.24" "$libstdcpp_version_number" | sort -V | head -n1)" = "3.4.24" ]; then
+            found_required_glibcxx=1
+            break
+        fi
+        libstdcpp_path=$(echo "$libstdcpp_path" | tail -n +2)    # remove first line
+    done
+else
+    echo "Warning: alpine distro detected, skipping GLIBCXX check"
+    found_required_glibcxx=1
+fi
+if [ "$found_required_glibcxx" = "0" ]; then
+    echo "Warning: Missing GLIBCXX >= 3.4.25! from $libstdcpp_real_path"
+fi
+
+if [ "$OS_ID" = "alpine" ]; then
+    MUSL_RTLDLIST="/lib/ld-musl-aarch64.so.1 /lib/ld-musl-x86_64.so.1"
+    for rtld in ${MUSL_RTLDLIST}; do
+        if [ -x $rtld ]; then
+            musl_version=$("$rtld" --version 2>&1 | grep "Version" | awk '{print $NF}')
+            break
+        fi
+    done
+    if [ "$(printf '%s\n' "1.2.3" "$musl_version" | sort -V | head -n1)" != "1.2.3" ]; then
+        echo "Error: Unsupported alpine distribution. Please refer to our supported distro section https://aka.ms/vscode-remote/linux for additional information."
+        exit 99
+    fi
+    found_required_glibc=1
+elif [ -z "$(ldd --version 2>&1 | grep 'musl libc')" ]; then
+    if [ -f /sbin/ldconfig ]; then
+        # Look up path
+        libc_paths=$(/sbin/ldconfig -p | grep 'libc.so.6')
+
+        if [ "$(echo "$libc_paths" | wc -l)" -gt 1 ]; then
+            libc_path=$(echo "$libc_paths" | grep "$LDCONFIG_ARCH" | awk '{print $NF}')
+        else
+            libc_path=$(echo "$libc_paths" | awk '{print $NF}')
+        fi
+    elif [ -f /usr/lib/libc.so.6 ]; then
+        # Typical path
+        libc_path='/usr/lib/libc.so.6'
+    elif [ -f /usr/lib64/libc.so.6 ]; then
+        # Typical path
+        libc_path='/usr/lib64/libc.so.6'
+    else
+        echo "Warning: Can't find libc.so or ldconfig, can't verify libc version"
+    fi
+
+    while [ -n "$libc_path" ]; do
+		# Rather than trusting the output of ldd --version (which is not always accurate)
+		# we instead use the version of the cached libc.so.6 file itself.
+        libc_path_line=$(echo "$libc_path" | head -n1)
+        libc_real_path=$(readlink -f "$libc_path_line")
+        libc_version=$(cat "$libc_real_path" | sed -n 's/.*release version \([0-9]\+\.[0-9]\+\).*/\1/p')
+        if [ "$(printf '%s\n' "2.28" "$libc_version" | sort -V | head -n1)" = "2.28" ]; then
+            found_required_glibc=1
+            break
+        fi
+	    libc_path=$(echo "$libc_path" | tail -n +2)    # remove first line
+    done
+    if [ "$found_required_glibc" = "0" ]; then
+        echo "Warning: Missing GLIBC >= 2.28! from $libc_real_path"
+    fi
+else
+    echo "Warning: musl detected, skipping GLIBC check"
+    found_required_glibc=1
+fi
+
+if [ "$found_required_glibc" = "0" ] || [ "$found_required_glibcxx" = "0" ]; then
+	echo "Warning: Missing required dependencies. Please refer to our FAQ https://aka.ms/vscode-remote/faq/old-linux for additional information."
+	# Custom exit code based on https://tldp.org/LDP/abs/html/exitcodes.html
+	exit 100
+fi