commit 90d3ce923026d4e2a827c4179344098e4a0bfef4
Author: Joshua Herring <jwherrin@iu.edu>
Date:   Sun May 10 03:51:57 2026 -0400

    Initial Commit

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..3780be2
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,4 @@
+prddeploy
+*.md
+*.txt
+prompts
diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..12bc7e3
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,7 @@
+module periodic/prddeploy
+
+go 1.26.1
+
+require golang.org/x/crypto v0.51.0
+
+require golang.org/x/sys v0.44.0 // indirect
diff --git a/main.go b/main.go
new file mode 100644
index 0000000..6697162
--- /dev/null
+++ b/main.go
@@ -0,0 +1,212 @@
+package main
+
+import (
+	"fmt"
+	"io"
+	"os"
+	"path/filepath"
+
+	"golang.org/x/crypto/ssh"
+)
+
+type UploadArgs struct {
+	Command string `json:"command"`
+	LocalFilepath string `json:"local_filepath"`
+	DestinationFilepath string `json:"destination_filepath"`
+	PrivateKeyFile string `json:"private_key_file"`
+	Username string `json:"username"`
+	Host string `json:"host"`
+}
+
+type RunCommandArgs struct {
+	Command string `json:"command"`
+	RemoteCommand string `json:"remote_command"`
+	PrivateKeyFile string `json:"private_key_file"`
+	Username string `json:"username"`
+	Host string `json:"host"`
+}
+
+func upload_read_args() UploadArgs {
+
+	if len(os.Args) != 7 {
+		fmt.Fprintf(os.Stderr, "Usage: %s <command> <local-file> <remote-path> <private-key> <username> <host>\n", os.Args[0])
+		os.Exit(1)
+	}
+
+	return UploadArgs{
+		os.Args[1],
+		os.Args[2],
+		os.Args[3],
+		os.Args[4],
+		os.Args[5],
+		os.Args[6],
+	}
+}
+
+func run_command_args() RunCommandArgs {
+
+	if len(os.Args) != 6 {
+		fmt.Fprintf(os.Stderr, "Usage: %s <command> <remote-command> <private-key> <username> <host>\n", os.Args[0])
+		os.Exit(1)
+	}
+
+	return RunCommandArgs{
+		os.Args[1],
+		os.Args[2],
+		os.Args[3],
+		os.Args[4],
+		os.Args[5],
+	}
+
+}
+
+func get_signer(private_key_file string) ssh.Signer {
+
+	key_bytes, err := os.ReadFile(private_key_file)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "Error reading private key: %v\n", err)
+		os.Exit(1)
+	}
+
+	signer, err := ssh.ParsePrivateKey(key_bytes)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "Error parsing private key: %v\n", err)
+		os.Exit(1)
+	}
+
+	return signer
+
+}
+
+func resolve_port(host string) string {
+
+	if len(host) > 0 {
+		hasPort := false
+		for i := len(host) - 1; i >= 0; i-- {
+			if host[i] == ':' {
+				hasPort = true
+				break
+			}
+			if host[i] == ']' {
+				break
+			}
+		}
+		if !hasPort {
+			host = host + ":22"
+		}
+	}
+
+	return host
+
+}
+
+func get_client(private_key_file, username, host string) *ssh.Client {
+
+	signer := get_signer(private_key_file)
+
+	config := &ssh.ClientConfig{
+		User: username,
+		Auth: []ssh.AuthMethod{
+			ssh.PublicKeys(signer),
+		},
+		HostKeyCallback: ssh.InsecureIgnoreHostKey(),
+	}
+
+	addr := resolve_port(host)
+
+	client, err := ssh.Dial("tcp", addr, config)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "Error connecting to server: %v\n", err)
+		os.Exit(1)
+	}
+
+	return client
+}
+
+func upload_file() {
+	args := upload_read_args()
+
+	client := get_client(args.PrivateKeyFile, args.Username, args.Host)
+	defer client.Close()
+
+	session, err := client.NewSession()
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "Error creating SSH session: %v\n", err)
+		os.Exit(1)
+	}
+	defer session.Close()
+
+	source_file, err := os.Open(args.LocalFilepath)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "Error opening local file: %v\n", err)
+		os.Exit(1)
+	}
+	defer source_file.Close()
+
+	info, err := source_file.Stat()
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "Error stating local file: %v\n", err)
+		os.Exit(1)
+	}
+
+	w, err := session.StdinPipe()
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "Error creating stdin pipe: %v\n", err)
+		os.Exit(1)
+	}
+
+	if err := session.Start("scp -t " + args.DestinationFilepath); err != nil {
+		fmt.Fprintf(os.Stderr, "Error starting scp: %v\n", err)
+		os.Exit(1)
+	}
+
+	fmt.Fprintf(w, "C0644 %d %s\n", info.Size(), filepath.Base(args.LocalFilepath))
+	if _, err := io.Copy(w, source_file); err != nil {
+		fmt.Fprintf(os.Stderr, "Error sending file: %v\n", err)
+		os.Exit(1)
+	}
+	fmt.Fprint(w, "\x00")
+	w.Close()
+
+	if err := session.Wait(); err != nil {
+		fmt.Fprintf(os.Stderr, "Error during scp transfer: %v\n", err)
+		os.Exit(1)
+	}
+
+	fmt.Println("Success")
+}
+
+func run_command() {
+
+	args := run_command_args()
+
+	client := get_client(args.PrivateKeyFile, args.Username, args.Host)
+	defer client.Close()
+
+	session, err := client.NewSession()
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "Error creating SSH session: %v\n", err)
+		os.Exit(1)
+	}
+	defer session.Close()
+
+	session.Stdout = os.Stdout
+	session.Stderr = os.Stderr
+	if err := session.Run(args.RemoteCommand); err != nil {
+		fmt.Fprintf(os.Stderr, "Error running command: %v\n", err)
+		os.Exit(1)
+	}
+	return
+
+}
+
+func main() {
+	switch os.Args[1] {
+	case "upload_file":
+		upload_file()
+	case "run_command":
+		run_command()
+	default: 
+		fmt.Println("HERE")
+	}
+}