rpc WIP

1 files changed, 43 insertions, 0 deletions

diff --git a/rpc.bash b/rpc.bash
new file mode 100644
index 0000000..a530216
--- /dev/null
+++ b/rpc.bash
@@ -0,0 +1,43 @@
+#!/usr/bin/bash -e
+set -e
+set -o pipefail
+
+f()
+{
+        read -p 'Name? ' &&
+        echo "Hello, $REPLY"
+        exit
+}
+
+script=$(declare -f f; echo f)
+
+remote_run_shell_script_stdin()
+{
+        len=$1
+        [ "$len" -gt 0 ]
+        read -r -N"$len"
+        bash -exc "eval ${REPLY@Q}"
+}
+
+remote_run_shell_script_arg1()
+{
+        script=$1
+        shift
+        (echo -n "$script"; cat) | remote_run_shell_script_stdin "${#script}" "$@"
+}
+
+# Thanks Lri from stackoverflow.com/questions/4471364/
+# how-do-i-list-the-functions-defined-in-my-shell/28278090
+remote_run_function()
+{
+        main=$1
+        shift
+        funcs=$(comm \
+                <(declare -f "$main" | grep -o -E '\b\w+\b' | sort -u) \
+                <(compgen -A function | sort -u)
+        )
+        script=$(declare -f $funcs; printf '%s "$@";\n' "$main")
+        remote_run_shell_script_arg1 "$script" "$@"
+}
+
+remote_run_function f