Merge pull request #72347 from NixOS/bash-no-undef-vars

treewide: `set -u` everywhere

pkgs/development/compilers/adoptopenjdk-bin/jdk-darwin-base.nix

@@ -37,7 +37,7 @@ let cpuName = stdenv.hostPlatform.parsed.cpu.name;
 
     # Set JAVA_HOME automatically.
     cat <<EOF >> $out/nix-support/setup-hook
-    if [ -z "\$JAVA_HOME" ]; then export JAVA_HOME=$out; fi
+    if [ -z "\''${JAVA_HOME-}" ]; then export JAVA_HOME=$out; fi
     EOF
   '';
 

pkgs/development/compilers/adoptopenjdk-bin/jdk-linux-base.nix

@@ -54,7 +54,7 @@ let result = stdenv.mkDerivation rec {
 
     # Set JAVA_HOME automatically.
     cat <<EOF >> "$out/nix-support/setup-hook"
-    if [ -z "\$JAVA_HOME" ]; then export JAVA_HOME=$out; fi
+    if [ -z "\''${JAVA_HOME-}" ]; then export JAVA_HOME=$out; fi
     EOF
   '';
 

pkgs/development/compilers/graalvm/default.nix

@@ -270,7 +270,7 @@ in rec {
       # Set JAVA_HOME automatically.
       mkdir -p $out/nix-support
       cat <<EOF > $out/nix-support/setup-hook
-      if [ -z "\$JAVA_HOME" ]; then export JAVA_HOME=$out; fi
+      if [ -z "\''${JAVA_HOME-}" ]; then export JAVA_HOME=$out; fi
       EOF
     '';
     postFixup = openjdk.postFixup or null;

pkgs/development/compilers/graalvm/enterprise-edition.nix

@@ -72,7 +72,7 @@ let
       # Set JAVA_HOME automatically.
       mkdir -p $out/nix-support
       cat <<EOF > $out/nix-support/setup-hook
-      if [ -z "\$JAVA_HOME" ]; then export JAVA_HOME=$out; fi
+      if [ -z "\''${JAVA_HOME-}" ]; then export JAVA_HOME=$out; fi
       EOF
     '';
 

pkgs/development/compilers/openjdk/11.nix

@@ -106,7 +106,7 @@ let
       # Set JAVA_HOME automatically.
       mkdir -p $out/nix-support
       cat <<EOF > $out/nix-support/setup-hook
-      if [ -z "\$JAVA_HOME" ]; then export JAVA_HOME=$out/lib/openjdk; fi
+      if [ -z "\''${JAVA_HOME-}" ]; then export JAVA_HOME=$out/lib/openjdk; fi
       EOF
     '';
 

pkgs/development/compilers/openjdk/8.nix

@@ -231,7 +231,7 @@ let
       # Set JAVA_HOME automatically.
       mkdir -p $out/nix-support
       cat <<EOF > $out/nix-support/setup-hook
-      if [ -z "\$JAVA_HOME" ]; then export JAVA_HOME=$out/lib/openjdk; fi
+      if [ -z "\''${JAVA_HOME-}" ]; then export JAVA_HOME=$out/lib/openjdk; fi
       EOF
     '';
 

pkgs/development/compilers/openjdk/darwin/11.nix

@@ -44,7 +44,7 @@ let
 
       # Set JAVA_HOME automatically.
       cat <<EOF >> $out/nix-support/setup-hook
-      if [ -z "\$JAVA_HOME" ]; then export JAVA_HOME=$out; fi
+      if [ -z "\''${JAVA_HOME-}" ]; then export JAVA_HOME=$out; fi
       EOF
     '';
 

pkgs/development/compilers/openjdk/darwin/8.nix

@@ -44,7 +44,7 @@ let
 
       # Set JAVA_HOME automatically.
       cat <<EOF >> $out/nix-support/setup-hook
-      if [ -z "\$JAVA_HOME" ]; then export JAVA_HOME=$out; fi
+      if [ -z "\''${JAVA_HOME-}" ]; then export JAVA_HOME=$out; fi
       EOF
     '';
 

pkgs/development/compilers/openjdk/darwin/default.nix

@@ -44,7 +44,7 @@ let
 
       # Set JAVA_HOME automatically.
       cat <<EOF >> $out/nix-support/setup-hook
-      if [ -z "\$JAVA_HOME" ]; then export JAVA_HOME=$out; fi
+      if [ -z "\''${JAVA_HOME-}" ]; then export JAVA_HOME=$out; fi
       EOF
     '';
 

pkgs/development/compilers/openjdk/default.nix

@@ -114,7 +114,7 @@ let
       # Set JAVA_HOME automatically.
       mkdir -p $out/nix-support
       cat <<EOF > $out/nix-support/setup-hook
-      if [ -z "\$JAVA_HOME" ]; then export JAVA_HOME=$out/lib/openjdk; fi
+      if [ -z "\''${JAVA_HOME-}" ]; then export JAVA_HOME=$out/lib/openjdk; fi
       EOF
     '';
 

pkgs/development/compilers/oraclejdk/jdk-linux-base.nix

@@ -156,7 +156,7 @@ let result = stdenv.mkDerivation rec {
 
     # Set JAVA_HOME automatically.
     cat <<EOF >> $out/nix-support/setup-hook
-    if [ -z "\$JAVA_HOME" ]; then export JAVA_HOME=$out; fi
+    if [ -z "\''${JAVA_HOME-}" ]; then export JAVA_HOME=$out; fi
     EOF
   '';
 

pkgs/development/compilers/rust/setup-hook.sh

@@ -1,4 +1,4 @@
 # Fix 'failed to open: /homeless-shelter/.cargo/.package-cache' in rust 1.36.
-if [[ -z $IN_NIX_SHELL && -z $CARGO_HOME ]]; then
+if [[ -z ${IN_NIX_SHELL-} && -z ${CARGO_HOME-} ]]; then
     export CARGO_HOME=$TMPDIR
 fi

pkgs/development/compilers/zulu/8.nix

@@ -58,7 +58,7 @@ in stdenv.mkDerivation {
 
     # Set JAVA_HOME automatically.
     cat <<EOF >> $out/nix-support/setup-hook
-    if [ -z "\$JAVA_HOME" ]; then export JAVA_HOME=$out; fi
+    if [ -z "\''${JAVA_HOME-}" ]; then export JAVA_HOME=$out; fi
     EOF
   '';
 

pkgs/development/compilers/zulu/default.nix

@@ -55,7 +55,7 @@ in stdenv.mkDerivation {
 
     # Set JAVA_HOME automatically.
     cat <<EOF >> $out/nix-support/setup-hook
-    if [ -z "\$JAVA_HOME" ]; then export JAVA_HOME=$out; fi
+    if [ -z "\''${JAVA_HOME-}" ]; then export JAVA_HOME=$out; fi
     EOF
   '';