Skip adjusting PATH if in noninteractive mode.

curl https://get-ghcup.haskell.org -sSf | BOOTSTRAP_HASKELL_NONINTERACTIVE=1 sh works non-interactively until it gets to prompting to edit .bashrc or .bash_profile. I think this whole section should just be skipped in that case.

bootstrap-haskell

@@ -82,46 +82,48 @@ edo cabal new-update
 printf "\\033[0;35m%s\\033[0m\\n" ""
 printf "\\033[0;35m%s\\033[0m\\n" "Installation done!"
 printf "\\033[0;35m%s\\033[0m\\n" ""
-echo "In order to run ghc and cabal, you need to adjust your PATH variable."
-echo "You may want to source '$GHCUP_INSTALL_BASE_PREFIX/.ghcup/env' in your shell"
-echo "configuration to do so (e.g. ~/.bashrc)."
-
-if [ -e "$HOME/.bashrc" ] ; then
-    printf "\\033[0;35m%s\\033[0m\\n" ""
-    printf "\\033[0;35m%s\\033[0m\\n" "Detected ~/.bashrc on your system..."
-    printf "\\033[0;35m%s\\033[0m\\n" "If you want ghcup to automatically fix your ~/.bashrc to include the required PATH variable"
-    printf "\\033[0;35m%s\\033[0m\\n" "answer with YES and press ENTER (at your own risk)."
-    printf "\\033[0;35m%s\\033[0m\\n" "Otherwise press ctrl-c to abort."
-    printf "\\033[0;35m%s\\033[0m\\n" ""
-
-    read -r next_answer </dev/tty
-
-    case $next_answer in
-        [Yy]*)
-            echo "source $GHCUP_INSTALL_BASE_PREFIX/.ghcup/env" >> "${HOME}/.bashrc"
-            ;;
-        *)
-            exit 0;;
-    esac
-elif [ -e "$HOME/.bash_profile" ] ; then
-    printf "\\033[0;35m%s\\033[0m\\n" ""
-    printf "\\033[0;35m%s\\033[0m\\n" "Detected ~/.bash_profile on your system..."
-    printf "\\033[0;35m%s\\033[0m\\n" "If you want ghcup to automatically fix your ~/.bash_profile to include the required PATH variable"
-    printf "\\033[0;35m%s\\033[0m\\n" "answer with YES and press ENTER (at your own risk)."
-    printf "\\033[0;35m%s\\033[0m\\n" "Otherwise press ctrl-c to abort."
-    printf "\\033[0;35m%s\\033[0m\\n" ""
-
-    read -r next_answer </dev/tty
-
-    case $next_answer in
-        [Yy]*)
-            echo "source $GHCUP_INSTALL_BASE_PREFIX/.ghcup/env" >> "${HOME}/.bash_profile"
-            ;;
-        *)
-            exit 0;;
-    esac
-fi
 
+if [ -z "${BOOTSTRAP_HASKELL_NONINTERACTIVE}" ] ; then
+    echo "In order to run ghc and cabal, you need to adjust your PATH variable."
+    echo "You may want to source '$GHCUP_INSTALL_BASE_PREFIX/.ghcup/env' in your shell"
+    echo "configuration to do so (e.g. ~/.bashrc)."
+
+    if [ -e "$HOME/.bashrc" ] ; then
+        printf "\\033[0;35m%s\\033[0m\\n" ""
+        printf "\\033[0;35m%s\\033[0m\\n" "Detected ~/.bashrc on your system..."
+        printf "\\033[0;35m%s\\033[0m\\n" "If you want ghcup to automatically fix your ~/.bashrc to include the required PATH variable"
+        printf "\\033[0;35m%s\\033[0m\\n" "answer with YES and press ENTER (at your own risk)."
+        printf "\\033[0;35m%s\\033[0m\\n" "Otherwise press ctrl-c to abort."
+        printf "\\033[0;35m%s\\033[0m\\n" ""
+
+        read -r next_answer </dev/tty
+    
+        case $next_answer in
+            [Yy]*)
+                echo "source $GHCUP_INSTALL_BASE_PREFIX/.ghcup/env" >> "${HOME}/.bashrc"
+                ;;
+            *)
+                exit 0;;
+        esac
+    elif [ -e "$HOME/.bash_profile" ] ; then
+        printf "\\033[0;35m%s\\033[0m\\n" ""
+        printf "\\033[0;35m%s\\033[0m\\n" "Detected ~/.bash_profile on your system..."
+        printf "\\033[0;35m%s\\033[0m\\n" "If you want ghcup to automatically fix your ~/.bash_profile to include the required PATH variable"
+        printf "\\033[0;35m%s\\033[0m\\n" "answer with YES and press ENTER (at your own risk)."
+        printf "\\033[0;35m%s\\033[0m\\n" "Otherwise press ctrl-c to abort."
+        printf "\\033[0;35m%s\\033[0m\\n" ""
+
+        read -r next_answer </dev/tty
+
+        case $next_answer in
+            [Yy]*)
+                echo "source $GHCUP_INSTALL_BASE_PREFIX/.ghcup/env" >> "${HOME}/.bash_profile"
+                ;;
+            *)
+                exit 0;;
+        esac
+    fi
+fi
 )
 
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