bashrc_env_export + eval

.vscode/launch.json

@@ -0,0 +1,22 @@
+{
+  // Use IntelliSense to learn about possible attributes.
+  // Hover to view descriptions of existing attributes.
+  // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+  "version": "0.2.0",
+  "configurations": [
+    {
+      "type": "bashdb",
+      "request": "launch",
+      "name": "Bash-Debug (hardcoded script name)",
+      "cwd": "${workspaceFolder}",
+      "program": "${workspaceFolder}/path/to/script.sh",
+      "args": []
+    },
+    {
+      "type": "bashdb",
+      "request": "launch",
+      "name": "Bash-Debug (simplest configuration)",
+      "program": "${file}"
+    }
+  ]
+}

main

@@ -9,51 +9,73 @@ function bashrc_count_lines {
 }
 
 function bashrc_watch_start {
-    if [ -n "${BASHRC_LINES+set}" ]; then
-        echo "provided so far BASHRC_LINES=$BASHRC_LINES"
-    else
-        echo 'count lines of .bashrc'
+    if [[ -z "${BASHRC_LINES+set}" ]]; then
         BASHRC_LINES=$(bashrc_count_lines)
+    else
+        BASHRC_EVOLVED=true
     fi
 }
 
 function bashrc_watch_end {
     bashrc_lines=$(bashrc_count_lines)
-    if [[ "$BASHRC_LINES" -lt "$bashrc_lines" ]]; then
+    if [[ "$BASHRC_LINES" -lt "$bashrc_lines" || -n "${BASHRC_EVOLVED+set}" ]]; then
+        echo
         echo '*****************************'
-        echo '* BASHRC has evolved        *'
-        echo '* please execute:           *'
+        echo '* BASHRC has evolved!       *'
+        echo '* please synchronize:       *'
         echo '*                           *'
-        echo "*   source \$HOME/.bashrc    *"
+        echo "*   source ~/.bashrc        *"
         echo '*                           *'
         echo '*****************************'
-    else
-        echo 'everything is fine!'
+        echo
     fi
 }
 
-function bashrc_env_sync {
-    env_var="$1"
-    env_value="$2"
-    if printenv | grep -q "$env_var"; then
-        real_value=$(eval "echo \$$env_var")
-        echo "success for $env_var = $real_value"
+function _bashrc_env_with_prefix {
+    arg1="$1"
+    arg2="$2"
+    prefix="$3"
+    if printenv | grep -q "$arg1"; then
+        real_value=$(eval "echo \$$arg1")
+        echo "success for $arg1 = $real_value"
     else
-        session_line="export ${env_var}=${env_value}"
-        append_or_replace "^${session_line}.*" "$session_line" "$HOME/.bashrc" &>/dev/null
+        case "$prefix" in
+        export)
+            session_line="export ${arg1}=${arg2}"
+            regex="$session_line"
+            ;;
+        eval)
+            session_line="eval \"\$($arg2)\""
+            regex="eval \"\\\$\\($arg2\\)\""
+            ;;
+        *) echo "unknown prefix $prefix" && exit 10 ;;
+        esac
+        append_or_replace "$regex" "$session_line" "$HOME/.bashrc" &>/dev/null
         eval "$session_line"
         set +e
         eval "BASHRC_LINES=$BASHRC_LINES $0"
         exit $?
     fi
+
+}
+
+function bashrc_env_export {
+    _bashrc_env_with_prefix "$1" "$2" 'export'
+}
+
+function bashrc_env_eval {
+    _bashrc_env_with_prefix "$1" "$2" 'eval'
 }
 
 # main
 
 set -Eeu
 bashrc_watch_start
+
 echo 'init'
-bashrc_env_sync 'SESSION_RESTART' true
+bashrc_env_export 'SESSION_RESTART' true
+bashrc_env_export 'TOTO' fluo
+bashrc_env_eval 'MISE_SHELL' "$HOME/.local/bin/mise activate bash"
+echo 'end'
 
-echo 'suite'
 bashrc_watch_end