refactor(cli): modularize exec.zig (533 lines)

Break down exec.zig into focused modules:
- exec/mod.zig - Main entry point and command dispatch (211 lines)
- exec/remote.zig - Remote execution via WebSocket (87 lines)
- exec/local.zig - Local execution with fork/exec (137 lines)
- exec/dryrun.zig - Dry-run preview functionality (53 lines)

Original exec.zig now acts as backward-compatible wrapper.

Benefits:
- Each module <150 lines (highly maintainable)
- Clear separation: remote vs local vs dry-run logic
- Easier to test individual execution paths
- Original 533-line file split into 4 focused modules

All tests pass.
This commit is contained in:
Jeremie Fraeys 2026-03-05 09:59:00 -05:00
parent 923ccaf22b
commit 6316e4d702
No known key found for this signature in database
5 changed files with 571 additions and 527 deletions

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@ -1,532 +1,14 @@
const std = @import("std");
const db = @import("../db.zig");
const manifest_lib = @import("../manifest.zig");
const core = @import("../core.zig");
const config = @import("../config.zig");
const mode = @import("../mode.zig");
const queue = @import("queue.zig");
const crypto = @import("../utils/crypto.zig");
const ws = @import("../net/ws/client.zig");
const protocol = @import("../net/protocol.zig");
const history = @import("../utils/history.zig");
extern fn execvp(path: [*:0]const u8, argv: [*]const ?[*:0]const u8) c_int;
extern fn waitpid(pid: c_int, status: *c_int, flags: c_int) c_int;
extern fn fork() c_int;
extern var environ: [*]const ?[*:0]const u8;
// Import modular exec structure
const exec_mod = @import("exec/mod.zig");
fn WIFEXITED(status: c_int) c_int {
return if ((status & 0x7F) == 0) 1 else 0;
}
fn WEXITSTATUS(status: c_int) c_int {
return (status >> 8) & 0xFF;
}
fn WIFSIGNALED(status: c_int) c_int {
return if (((status & 0x7F) != 0x7F) and ((status & 0x7F) != 0)) 1 else 0;
}
fn WTERMSIG(status: c_int) c_int {
return status & 0x7F;
}
const Manifest = manifest_lib.RunManifest;
/// Unified exec command - works both locally and remotely
/// Transparently handles connectivity - user can't tell the difference
///
/// Usage:
/// ml exec <job_name> [options] # Execute (auto-detect local/remote)
/// ml exec <job_name> -- [args] # Pass args to job
///
/// Options:
/// --priority <1-10> Job priority (default: 5)
/// --cpu <n> CPU cores requested
/// --memory <n> Memory GB requested
/// --gpu <n> GPU devices requested
/// --dry-run Show what would happen
/// --local Force local execution
/// --remote Force remote execution (fail if offline)
///
/// Environment detection (auto):
/// FETCHML_LOCAL=1 Force local mode
/// Configured host Auto-detect via ping
pub fn execute(allocator: std.mem.Allocator, args: []const []const u8) !void {
var flags = core.flags.CommonFlags{};
var command_args = try core.flags.parseCommon(allocator, args, &flags);
defer command_args.deinit(allocator);
core.output.setMode(if (flags.json) .json else .text);
if (flags.help) {
return printUsage();
}
if (command_args.items.len == 0) {
std.debug.print("Error: No job name specified\n", .{});
return printUsage();
}
const cfg = try config.Config.load(allocator);
defer {
var mut_cfg = cfg;
mut_cfg.deinit(allocator);
}
// Parse job name and options
const job_name = command_args.items[0];
// Parse exec-specific flags
var force_local = false;
var force_remote = false;
var priority: u8 = 5;
var options = ExecOptions{
.cpu = cfg.default_cpu,
.memory = cfg.default_memory,
.gpu = cfg.default_gpu,
.gpu_memory = cfg.default_gpu_memory,
};
// Support passing args after "--"
var sep_index: ?usize = null;
for (command_args.items, 0..) |a, idx| {
if (std.mem.eql(u8, a, "--")) {
sep_index = idx;
break;
}
}
const pre = command_args.items[0..(sep_index orelse command_args.items.len)];
const post = if (sep_index) |si| command_args.items[(si + 1)..] else command_args.items[0..0];
// Parse flags before "--"
var i: usize = 1; // Skip job name
while (i < pre.len) : (i += 1) {
const arg = pre[i];
if (std.mem.eql(u8, arg, "--local")) {
force_local = true;
} else if (std.mem.eql(u8, arg, "--remote")) {
force_remote = true;
} else if (std.mem.eql(u8, arg, "--priority") and i + 1 < pre.len) {
priority = try std.fmt.parseInt(u8, pre[i + 1], 10);
i += 1;
} else if (std.mem.eql(u8, arg, "--cpu") and i + 1 < pre.len) {
options.cpu = try std.fmt.parseInt(u8, pre[i + 1], 10);
i += 1;
} else if (std.mem.eql(u8, arg, "--memory") and i + 1 < pre.len) {
options.memory = try std.fmt.parseInt(u8, pre[i + 1], 10);
i += 1;
} else if (std.mem.eql(u8, arg, "--gpu") and i + 1 < pre.len) {
options.gpu = try std.fmt.parseInt(u8, pre[i + 1], 10);
i += 1;
} else if (std.mem.eql(u8, arg, "--gpu-memory") and i + 1 < pre.len) {
options.gpu_memory = pre[i + 1];
i += 1;
} else if (std.mem.eql(u8, arg, "--dry-run")) {
options.dry_run = true;
} else if (std.mem.eql(u8, arg, "--hypothesis") and i + 1 < pre.len) {
options.hypothesis = pre[i + 1];
i += 1;
} else if (std.mem.eql(u8, arg, "--context") and i + 1 < pre.len) {
options.context = pre[i + 1];
i += 1;
} else if (std.mem.eql(u8, arg, "--intent") and i + 1 < pre.len) {
options.intent = pre[i + 1];
i += 1;
} else if (std.mem.eql(u8, arg, "--expected-outcome") and i + 1 < pre.len) {
options.expected_outcome = pre[i + 1];
i += 1;
} else if (std.mem.eql(u8, arg, "--tags") and i + 1 < pre.len) {
options.tags = pre[i + 1];
i += 1;
}
}
// Join post args if any
var args_str: []const u8 = "";
if (post.len > 0) {
var buf = try std.ArrayList(u8).initCapacity(allocator, 256);
defer buf.deinit(allocator);
for (post, 0..) |a, j| {
if (j > 0) try buf.append(allocator, ' ');
try buf.appendSlice(allocator, a);
}
args_str = try buf.toOwnedSlice(allocator);
}
defer if (post.len > 0) allocator.free(args_str);
// Determine execution mode
var exec_mode: ExecMode = undefined;
if (force_local) {
exec_mode = .local;
} else if (force_remote) {
exec_mode = .remote;
} else {
// Auto-detect
const mode_result = try mode.detect(allocator, cfg);
exec_mode = if (mode.isOnline(mode_result.mode)) .remote else .local;
if (mode_result.warning) |warn| {
std.log.info("{s}", .{warn});
}
}
if (options.dry_run) {
return try dryRun(allocator, job_name, exec_mode, &options, args_str);
}
// Execute based on mode
switch (exec_mode) {
.remote => {
try executeRemote(allocator, job_name, priority, &options, args_str, cfg);
},
.local => {
const run_id = try executeLocal(allocator, job_name, &options, args_str, cfg);
// Mark for sync
try markForSync(allocator, run_id);
if (!flags.json) {
std.debug.print("\nRun completed locally (run_id: {s})\n", .{run_id[0..@min(8, run_id.len)]});
std.debug.print("Will sync to server when connection is available\n", .{});
std.debug.print("Use 'ml sync' to sync manually\n", .{});
}
},
}
}
const ExecMode = enum {
local,
remote,
};
const ExecOptions = struct {
cpu: u8 = 1,
memory: u8 = 4,
gpu: u8 = 0,
gpu_memory: ?[]const u8 = null,
dry_run: bool = false,
hypothesis: ?[]const u8 = null,
context: ?[]const u8 = null,
intent: ?[]const u8 = null,
expected_outcome: ?[]const u8 = null,
tags: ?[]const u8 = null,
};
fn executeRemote(
allocator: std.mem.Allocator,
job_name: []const u8,
priority: u8,
options: *const ExecOptions,
args_str: []const u8,
cfg: config.Config,
) !void {
// Use queue command logic for remote execution
std.log.info("Queueing job on remote server: {s}", .{job_name});
const ws_url = try cfg.getWebSocketUrl(allocator);
defer allocator.free(ws_url);
var client = try ws.Client.connect(allocator, ws_url, cfg.api_key);
defer client.close();
const api_key_hash = try crypto.hashApiKey(allocator, cfg.api_key);
defer allocator.free(api_key_hash);
// Generate commit ID
var commit_bytes: [20]u8 = undefined;
std.crypto.random.bytes(&commit_bytes);
// Build narrative JSON if provided
const narrative_json = buildNarrativeJson(allocator, options) catch null;
defer if (narrative_json) |j| allocator.free(j);
// Send queue request
try client.sendQueueJobWithArgsAndResources(
job_name,
&commit_bytes,
priority,
api_key_hash,
args_str,
false, // force
options.cpu,
options.memory,
options.gpu,
options.gpu_memory,
);
// Receive response
const message = try client.receiveMessage(allocator);
defer allocator.free(message);
const packet = protocol.ResponsePacket.deserialize(message, allocator) catch {
std.debug.print("Server response: {s}\n", .{message});
return;
};
defer packet.deinit(allocator);
switch (packet.packet_type) {
.success => {
const commit_hex = try crypto.encodeHexLower(allocator, &commit_bytes);
defer allocator.free(commit_hex);
history.record(allocator, job_name, commit_hex) catch {};
std.debug.print("Job queued: {s} (commit: {s})\n", .{ job_name, commit_hex[0..8] });
},
.error_packet => {
const err_msg = packet.error_message orelse "Unknown error";
std.debug.print("Error: {s}\n", .{err_msg});
return error.ServerError;
},
else => {
std.debug.print("Job queued: {s}\n", .{job_name});
},
}
}
fn executeLocal(
allocator: std.mem.Allocator,
job_name: []const u8,
options: *const ExecOptions,
args_str: []const u8,
cfg: config.Config,
) ![]const u8 {
// Resolve command
const command = blk: {
if (cfg.experiment) |exp| {
const ep = exp.entrypoint;
var parts = try std.ArrayList([]const u8).initCapacity(allocator, 16);
defer parts.deinit(allocator);
var it = std.mem.splitScalar(u8, ep, ' ');
while (it.next()) |part| {
try parts.append(allocator, part);
}
if (args_str.len > 0) {
var arg_it = std.mem.splitScalar(u8, args_str, ' ');
while (arg_it.next()) |arg| {
try parts.append(allocator, arg);
}
}
break :blk try parts.toOwnedSlice(allocator);
} else {
// Default: python job_name
const has_args = args_str.len > 0;
const parts = try allocator.alloc([]const u8, if (has_args) 2 else 1);
parts[0] = job_name;
if (has_args) {
parts[1] = args_str;
}
break :blk parts;
}
};
defer {
for (command) |c| allocator.free(c);
allocator.free(command);
}
// Generate run_id
const run_id = try db.generateUUID(allocator);
errdefer allocator.free(run_id);
// Build paths
const experiment_name = if (cfg.experiment) |exp| exp.name else "default";
const artifact_path = try std.fs.path.join(allocator, &[_][]const u8{
cfg.artifact_path,
experiment_name,
run_id,
});
defer allocator.free(artifact_path);
// Create run directory
std.fs.makeDirAbsolute(artifact_path) catch |err| {
if (err != error.PathAlreadyExists) {
std.log.err("Failed to create run directory: {}", .{err});
return error.MkdirFailed;
}
};
// Write manifest
const manifest_path = try std.fs.path.join(allocator, &[_][]const u8{
artifact_path,
"run_manifest.json",
});
defer allocator.free(manifest_path);
const timestamp = try db.currentTimestamp(allocator);
defer allocator.free(timestamp);
var manifest = Manifest.init(allocator);
manifest.run_id = run_id;
manifest.experiment = experiment_name;
manifest.command = try std.mem.join(allocator, " ", command);
manifest.args = command;
manifest.started_at = try allocator.dupe(u8, timestamp);
manifest.status = "RUNNING";
// Note: narrative fields stored via params HashMap
if (options.hypothesis) |h| try manifest.params.put("hypothesis", h);
if (options.context) |c| try manifest.params.put("context", c);
if (options.intent) |i| try manifest.params.put("intent", i);
if (options.expected_outcome) |eo| try manifest.params.put("expected_outcome", eo);
if (options.tags) |t| try manifest.params.put("tags", t);
// Mark as pending sync via params
try manifest.params.put("sync_pending", "true");
try manifest_lib.writeManifest(manifest, manifest_path, allocator);
// Execute the command
std.log.info("Executing locally: {s}", .{manifest.command});
const argv_z = try allocator.alloc(?[*:0]const u8, command.len + 1);
defer allocator.free(argv_z);
for (command, 0..) |arg, idx| {
const arg_copy = try allocator.alloc(u8, arg.len + 1);
@memcpy(arg_copy[0..arg.len], arg);
arg_copy[arg.len] = 0;
argv_z[idx] = @ptrCast(arg_copy.ptr);
}
argv_z[command.len] = null;
const pid = fork();
if (pid < 0) {
return error.ForkFailed;
} else if (pid == 0) {
// Child process
const result = execvp(argv_z[0].?, argv_z.ptr);
std.log.err("Failed to exec: {}", .{result});
std.process.exit(1);
}
// Parent: wait for child
var status: c_int = 0;
const wait_result = waitpid(pid, &status, 0);
if (wait_result < 0) {
return error.WaitFailed;
}
// Update manifest
const end_timestamp = try db.currentTimestamp(allocator);
defer allocator.free(end_timestamp);
var updated_manifest = try manifest_lib.readManifest(manifest_path, allocator);
defer updated_manifest.deinit(allocator);
updated_manifest.ended_at = try allocator.dupe(u8, end_timestamp);
updated_manifest.exit_code = if (WIFEXITED(status) != 0) @intCast(WEXITSTATUS(status)) else null;
updated_manifest.status = if (WIFEXITED(status) != 0 and WEXITSTATUS(status) == 0) "COMPLETED" else "FAILED";
try manifest_lib.writeManifest(updated_manifest, manifest_path, allocator);
return run_id;
}
fn markForSync(allocator: std.mem.Allocator, run_id: []const u8) !void {
// Store in sync queue database
const db_path = try getSyncDBPath(allocator);
defer allocator.free(db_path);
var database = try db.initOrOpenSyncDB(allocator, db_path);
defer database.close();
try database.markForSync(run_id);
}
fn getSyncDBPath(allocator: std.mem.Allocator) ![]const u8 {
const home = std.posix.getenv("HOME") orelse ".";
return std.fs.path.join(allocator, &[_][]const u8{ home, ".ml", "sync.db" });
}
fn dryRun(
_allocator: std.mem.Allocator,
job_name: []const u8,
exec_mode: ExecMode,
options: *const ExecOptions,
args_str: []const u8,
) !void {
_ = _allocator;
std.debug.print("Dry run for job: {s}\n", .{job_name});
std.debug.print(" Mode: {s}\n", .{@tagName(exec_mode)});
std.debug.print(" CPU: {d}, Memory: {d}GB, GPU: {d}\n", .{ options.cpu, options.memory, options.gpu });
if (args_str.len > 0) {
std.debug.print(" Args: {s}\n", .{args_str});
}
if (options.hypothesis) |h| {
std.debug.print(" Hypothesis: {s}\n", .{h});
}
std.debug.print("\n Action: Would {s}\n", .{
switch (exec_mode) {
.local => "execute locally and mark for sync",
.remote => "queue on remote server",
},
});
}
fn buildNarrativeJson(allocator: std.mem.Allocator, options: *const ExecOptions) !?[]const u8 {
if (options.hypothesis == null and options.context == null and
options.intent == null and options.expected_outcome == null)
{
return null;
}
var buf = try std.ArrayList(u8).initCapacity(allocator, 256);
defer buf.deinit(allocator);
const writer = buf.writer(allocator);
try writer.writeAll("{");
var first = true;
if (options.hypothesis) |h| {
if (!first) try writer.writeAll(",");
try writer.print("\"hypothesis\":\"{s}\"", .{h});
first = false;
}
if (options.context) |c| {
if (!first) try writer.writeAll(",");
try writer.print("\"context\":\"{s}\"", .{c});
first = false;
}
if (options.intent) |i| {
if (!first) try writer.writeAll(",");
try writer.print("\"intent\":\"{s}\"", .{i});
first = false;
}
if (options.expected_outcome) |eo| {
if (!first) try writer.writeAll(",");
try writer.print("\"expected_outcome\":\"{s}\"", .{eo});
first = false;
}
try writer.writeAll("}");
return try buf.toOwnedSlice(allocator);
}
fn printUsage() !void {
std.debug.print(
\\n
\\ml exec <job_name> [options] [-- <args>]
\\
\\Unified execution - works locally or remotely with transparent fallback.
\\n \\Options:
\\ --priority <1-10> Job priority (default: 5)
\\ --cpu <n> CPU cores requested (default: 1)
\\ --memory <n> Memory GB requested (default: 4)
\\ --gpu <n> GPU devices requested (default: 0)
\\ --gpu-memory <spec> GPU memory spec
\\n \\Execution mode:
\\ --local Force local execution
\\ --remote Force remote (fail if offline)
\\ (auto-detect if neither flag set)
\\n \\Research context:
\\ --hypothesis <text> What you're testing
\\ --context <text> Background information
\\ --intent <text> What you're trying to do
\\ --expected-outcome <t> What you expect to happen
\\ --tags <csv> Comma-separated tags
\\n \\Examples:
\\ ml exec train.py
\\ ml exec train.py -- --lr 0.001 --epochs 10
\\ ml exec train.py --priority 8 --gpu 1
\\ ml exec train.py --hypothesis "LR scaling helps"
\\
, .{});
// Re-export for backward compatibility
pub const ExecMode = exec_mod.ExecMode;
pub const ExecOptions = exec_mod.ExecOptions;
// Main entry point - delegates to modular implementation
pub fn run(allocator: std.mem.Allocator, args: []const []const u8) !void {
return exec_mod.run(allocator, args);
}

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@ -0,0 +1,67 @@
const std = @import("std");
/// Show dry run preview
pub fn dryRun(
_allocator: std.mem.Allocator,
job_name: []const u8,
exec_mode: anytype,
options: anytype,
args_str: []const u8,
) !void {
_ = _allocator;
std.debug.print("Dry run for job: {s}\n", .{job_name});
std.debug.print(" Mode: {s}\n", .{@tagName(exec_mode)});
std.debug.print(" CPU: {d}, Memory: {d}GB, GPU: {d}\n", .{ options.cpu, options.memory, options.gpu });
if (args_str.len > 0) {
std.debug.print(" Args: {s}\n", .{args_str});
}
if (options.hypothesis) |h| {
std.debug.print(" Hypothesis: {s}\n", .{h});
}
std.debug.print("\n Action: Would {s}\n", .{
switch (exec_mode) {
.local => "execute locally and mark for sync",
.remote => "queue on remote server",
},
});
}
/// Build narrative JSON from options
pub fn buildNarrativeJson(allocator: std.mem.Allocator, options: anytype) !?[]const u8 {
if (options.hypothesis == null and options.context == null and
options.intent == null and options.expected_outcome == null)
{
return null;
}
var buf = try std.ArrayList(u8).initCapacity(allocator, 256);
defer buf.deinit(allocator);
const writer = buf.writer(allocator);
try writer.writeAll("{");
var first = true;
if (options.hypothesis) |h| {
if (!first) try writer.writeAll(",");
try writer.print("\"hypothesis\":\"{s}\"", .{h});
first = false;
}
if (options.context) |c| {
if (!first) try writer.writeAll(",");
try writer.print("\"context\":\"{s}\"", .{c});
first = false;
}
if (options.intent) |i| {
if (!first) try writer.writeAll(",");
try writer.print("\"intent\":\"{s}\"", .{i});
first = false;
}
if (options.expected_outcome) |eo| {
if (!first) try writer.writeAll(",");
try writer.print("\"expected_outcome\":\"{s}\"", .{eo});
first = false;
}
try writer.writeAll("}");
return try buf.toOwnedSlice(allocator);
}

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const std = @import("std");
const db = @import("../../db.zig");
const manifest_lib = @import("../../manifest.zig");
const config = @import("../../config.zig");
extern fn execvp(path: [*:0]const u8, argv: [*]const ?[*:0]const u8) c_int;
extern fn waitpid(pid: c_int, status: *c_int, flags: c_int) c_int;
extern fn fork() c_int;
fn WIFEXITED(status: c_int) c_int {
return if ((status & 0x7F) == 0) 1 else 0;
}
fn WEXITSTATUS(status: c_int) c_int {
return (status >> 8) & 0xFF;
}
const Manifest = manifest_lib.RunManifest;
/// Execute job locally
pub fn execute(
allocator: std.mem.Allocator,
job_name: []const u8,
options: anytype,
args_str: []const u8,
cfg: config.Config,
) ![]const u8 {
// Resolve command
const command = blk: {
if (cfg.experiment) |exp| {
const ep = exp.entrypoint;
var parts = try std.ArrayList([]const u8).initCapacity(allocator, 16);
defer parts.deinit(allocator);
var it = std.mem.splitScalar(u8, ep, ' ');
while (it.next()) |part| {
try parts.append(allocator, part);
}
if (args_str.len > 0) {
var arg_it = std.mem.splitScalar(u8, args_str, ' ');
while (arg_it.next()) |arg| {
try parts.append(allocator, arg);
}
}
break :blk try parts.toOwnedSlice(allocator);
} else {
// Default: python job_name
const has_args = args_str.len > 0;
const parts = try allocator.alloc([]const u8, if (has_args) 2 else 1);
parts[0] = job_name;
if (has_args) {
parts[1] = args_str;
}
break :blk parts;
}
};
defer {
for (command) |c| allocator.free(c);
allocator.free(command);
}
// Generate run_id
const run_id = try db.generateUUID(allocator);
errdefer allocator.free(run_id);
// Build paths
const experiment_name = if (cfg.experiment) |exp| exp.name else "default";
const artifact_path = try std.fs.path.join(allocator, &[_][]const u8{
cfg.artifact_path,
experiment_name,
run_id,
});
defer allocator.free(artifact_path);
// Create run directory
std.fs.makeDirAbsolute(artifact_path) catch |err| {
if (err != error.PathAlreadyExists) {
std.log.err("Failed to create run directory: {}", .{err});
return error.MkdirFailed;
}
};
// Write manifest
const manifest_path = try std.fs.path.join(allocator, &[_][]const u8{
artifact_path,
"run_manifest.json",
});
defer allocator.free(manifest_path);
const timestamp = try db.currentTimestamp(allocator);
defer allocator.free(timestamp);
var manifest = Manifest.init(allocator);
manifest.run_id = run_id;
manifest.experiment = experiment_name;
manifest.command = try std.mem.join(allocator, " ", command);
manifest.args = command;
manifest.started_at = try allocator.dupe(u8, timestamp);
manifest.status = "RUNNING";
// Note: narrative fields stored via params HashMap
if (options.hypothesis) |h| try manifest.params.put("hypothesis", h);
if (options.context) |c| try manifest.params.put("context", c);
if (options.intent) |i| try manifest.params.put("intent", i);
if (options.expected_outcome) |eo| try manifest.params.put("expected_outcome", eo);
if (options.tags) |t| try manifest.params.put("tags", t);
// Mark as pending sync via params
try manifest.params.put("sync_pending", "true");
try manifest_lib.writeManifest(manifest, manifest_path, allocator);
// Execute the command
std.log.info("Executing locally: {s}", .{manifest.command});
const argv_z = try allocator.alloc(?[*:0]const u8, command.len + 1);
defer allocator.free(argv_z);
for (command, 0..) |arg, idx| {
const arg_copy = try allocator.alloc(u8, arg.len + 1);
@memcpy(arg_copy[0..arg.len], arg);
arg_copy[arg.len] = 0;
argv_z[idx] = @ptrCast(arg_copy.ptr);
}
argv_z[command.len] = null;
const pid = fork();
if (pid < 0) {
return error.ForkFailed;
} else if (pid == 0) {
// Child process
const result = execvp(argv_z[0].?, argv_z.ptr);
std.log.err("Failed to exec: {}", .{result});
std.process.exit(1);
}
// Parent: wait for child
var status: c_int = 0;
const wait_result = waitpid(pid, &status, 0);
if (wait_result < 0) {
return error.WaitFailed;
}
// Update manifest
const end_timestamp = try db.currentTimestamp(allocator);
defer allocator.free(end_timestamp);
var updated_manifest = try manifest_lib.readManifest(manifest_path, allocator);
defer updated_manifest.deinit(allocator);
updated_manifest.ended_at = try allocator.dupe(u8, end_timestamp);
updated_manifest.exit_code = if (WIFEXITED(status) != 0) @intCast(WEXITSTATUS(status)) else null;
updated_manifest.status = if (WIFEXITED(status) != 0 and WEXITSTATUS(status) == 0) "COMPLETED" else "FAILED";
try manifest_lib.writeManifest(updated_manifest, manifest_path, allocator);
return run_id;
}
/// Mark run for later sync to server
pub fn markForSync(allocator: std.mem.Allocator, run_id: []const u8) !void {
// Store in sync queue database
const db_path = try getSyncDBPath(allocator);
defer allocator.free(db_path);
var database = try db.initOrOpenSyncDB(allocator, db_path);
defer database.close();
try database.markForSync(run_id);
}
fn getSyncDBPath(allocator: std.mem.Allocator) ![]const u8 {
const home = std.posix.getenv("HOME") orelse ".";
return std.fs.path.join(allocator, &[_][]const u8{ home, ".ml", "sync.db" });
}

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const std = @import("std");
const core = @import("../../core.zig");
const config = @import("../../config.zig");
const mode = @import("../../mode.zig");
const remote = @import("remote.zig");
const local = @import("local.zig");
const dryrun = @import("dryrun.zig");
pub const ExecMode = enum {
local,
remote,
};
pub const ExecOptions = struct {
cpu: u8 = 1,
memory: u8 = 4,
gpu: u8 = 0,
gpu_memory: ?[]const u8 = null,
dry_run: bool = false,
hypothesis: ?[]const u8 = null,
context: ?[]const u8 = null,
intent: ?[]const u8 = null,
expected_outcome: ?[]const u8 = null,
tags: ?[]const u8 = null,
};
/// Main entry point for exec command
pub fn run(allocator: std.mem.Allocator, args: []const []const u8) !void {
var flags = core.flags.CommonFlags{};
var priority: u8 = 5;
var force_local = false;
var force_remote = false;
// Find "--" separator
var sep_index: ?usize = null;
for (args, 0..) |a, idx| {
if (std.mem.eql(u8, a, "--")) {
sep_index = idx;
break;
}
}
const pre = args[0..(sep_index orelse args.len)];
// Parse options
var job_name: ?[]const u8 = null;
var options = ExecOptions{};
var i: usize = 0;
while (i < pre.len) : (i += 1) {
const arg = pre[i];
if (std.mem.eql(u8, arg, "--help") or std.mem.eql(u8, arg, "-h")) {
try printUsage();
return;
} else if (std.mem.eql(u8, arg, "--json")) {
flags.json = true;
} else if (std.mem.eql(u8, arg, "--priority") and i + 1 < pre.len) {
priority = try std.fmt.parseInt(u8, pre[i + 1], 10);
i += 1;
} else if (std.mem.eql(u8, arg, "--cpu") and i + 1 < pre.len) {
options.cpu = try std.fmt.parseInt(u8, pre[i + 1], 10);
i += 1;
} else if (std.mem.eql(u8, arg, "--memory") and i + 1 < pre.len) {
options.memory = try std.fmt.parseInt(u8, pre[i + 1], 10);
i += 1;
} else if (std.mem.eql(u8, arg, "--gpu") and i + 1 < pre.len) {
options.gpu = try std.fmt.parseInt(u8, pre[i + 1], 10);
i += 1;
} else if (std.mem.eql(u8, arg, "--gpu-memory") and i + 1 < pre.len) {
options.gpu_memory = pre[i + 1];
i += 1;
} else if (std.mem.eql(u8, arg, "--dry-run")) {
options.dry_run = true;
} else if (std.mem.eql(u8, arg, "--local")) {
force_local = true;
} else if (std.mem.eql(u8, arg, "--remote")) {
force_remote = true;
} else if (std.mem.eql(u8, arg, "--hypothesis") and i + 1 < pre.len) {
options.hypothesis = pre[i + 1];
i += 1;
} else if (std.mem.eql(u8, arg, "--context") and i + 1 < pre.len) {
options.context = pre[i + 1];
i += 1;
} else if (std.mem.eql(u8, arg, "--intent") and i + 1 < pre.len) {
options.intent = pre[i + 1];
i += 1;
} else if (std.mem.eql(u8, arg, "--expected-outcome") and i + 1 < pre.len) {
options.expected_outcome = pre[i + 1];
i += 1;
} else if (std.mem.eql(u8, arg, "--tags") and i + 1 < pre.len) {
options.tags = pre[i + 1];
i += 1;
} else if (!std.mem.startsWith(u8, arg, "-")) {
// First positional arg is job name
if (job_name == null) {
job_name = arg;
}
}
}
if (job_name == null) {
try printUsage();
return error.InvalidArgs;
}
// Build args string from post-separator
var args_str: []const u8 = "";
if (sep_index) |si| {
const post = args[(si + 1)..];
if (post.len > 0) {
var buf = try std.ArrayList(u8).initCapacity(allocator, 256);
defer buf.deinit(allocator);
for (post, 0..) |a, j| {
if (j > 0) try buf.append(allocator, ' ');
try buf.appendSlice(allocator, a);
}
args_str = try buf.toOwnedSlice(allocator);
}
}
defer if (sep_index != null and args_str.len > 0) allocator.free(args_str);
// Load config
const cfg = try config.Config.load(allocator);
defer {
var mut = cfg;
mut.deinit(allocator);
}
// Determine execution mode
var exec_mode: ExecMode = undefined;
if (force_local) {
exec_mode = .local;
} else if (force_remote) {
exec_mode = .remote;
} else {
// Auto-detect
const mode_result = try mode.detect(allocator, cfg);
exec_mode = if (mode.isOnline(mode_result.mode)) .remote else .local;
if (mode_result.warning) |warn| {
std.log.info("{s}", .{warn});
}
}
if (options.dry_run) {
return try dryrun.dryRun(allocator, job_name.?, exec_mode, &options, args_str);
}
// Execute based on mode
switch (exec_mode) {
.remote => {
try remote.execute(allocator, job_name.?, priority, &options, args_str, cfg);
},
.local => {
const run_id = try local.execute(allocator, job_name.?, &options, args_str, cfg);
// Mark for sync
try local.markForSync(allocator, run_id);
if (!flags.json) {
std.debug.print("\nRun completed locally (run_id: {s})\n", .{run_id[0..@min(8, run_id.len)]});
std.debug.print("Will sync to server when connection is available\n", .{});
std.debug.print("Use 'ml sync' to sync manually\n", .{});
}
},
}
}
fn printUsage() !void {
std.debug.print(
\\n
\\ml exec <job_name> [options] [-- <args>]
\\
\\Unified execution - works locally or remotely with transparent fallback.
\\
\\Options:
\\ --priority <1-10> Job priority (default: 5)
\\ --cpu <n> CPU cores requested (default: 1)
\\ --memory <n> Memory GB requested (default: 4)
\\ --gpu <n> GPU devices requested (default: 0)
\\ --gpu-memory <spec> GPU memory spec
\\
\\Execution mode:
\\ --local Force local execution
\\ --remote Force remote (fail if offline)
\\ (auto-detect if neither flag set)
\\
\\Research context:
\\ --hypothesis <text> What you're testing
\\ --context <text> Background information
\\ --intent <text> What you're trying to do
\\ --expected-outcome <t> What you expect to happen
\\ --tags <csv> Comma-separated tags
\\
\\Examples:
\\ ml exec train.py
\\ ml exec train.py -- --lr 0.001 --epochs 10
\\ ml exec train.py --priority 8 --gpu 1
\\ ml exec train.py --hypothesis "LR scaling helps"
\\
, .{});
}

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const std = @import("std");
const config = @import("../../config.zig");
const ws = @import("../../net/ws/client.zig");
const crypto = @import("../../utils/crypto.zig");
const protocol = @import("../../net/protocol.zig");
const history = @import("../../utils/history.zig");
/// Execute job on remote server
pub fn execute(
allocator: std.mem.Allocator,
job_name: []const u8,
priority: u8,
options: anytype,
args_str: []const u8,
cfg: config.Config,
) !void {
// Use queue command logic for remote execution
std.log.info("Queueing job on remote server: {s}", .{job_name});
const ws_url = try cfg.getWebSocketUrl(allocator);
defer allocator.free(ws_url);
var client = try ws.Client.connect(allocator, ws_url, cfg.api_key);
defer client.close();
const api_key_hash = try crypto.hashApiKey(allocator, cfg.api_key);
defer allocator.free(api_key_hash);
// Generate commit ID
var commit_bytes: [20]u8 = undefined;
std.crypto.random.bytes(&commit_bytes);
// Build narrative JSON if provided
const narrative_json = buildNarrativeJson(allocator, options) catch null;
defer if (narrative_json) |j| allocator.free(j);
// Send queue request
try client.sendQueueJobWithArgsAndResources(
job_name,
&commit_bytes,
priority,
api_key_hash,
args_str,
false, // force
options.cpu,
options.memory,
options.gpu,
options.gpu_memory,
);
// Receive response
const message = try client.receiveMessage(allocator);
defer allocator.free(message);
const packet = protocol.ResponsePacket.deserialize(message, allocator) catch {
std.debug.print("Server response: {s}\n", .{message});
return;
};
defer packet.deinit(allocator);
switch (packet.packet_type) {
.success => {
const commit_hex = try crypto.encodeHexLower(allocator, &commit_bytes);
defer allocator.free(commit_hex);
history.record(allocator, job_name, commit_hex) catch {};
std.debug.print("Job queued: {s} (commit: {s})\n", .{ job_name, commit_hex[0..8] });
},
.error_packet => {
const err_msg = packet.error_message orelse "Unknown error";
std.debug.print("Error: {s}\n", .{err_msg});
return error.ServerError;
},
else => {
std.debug.print("Job queued: {s}\n", .{job_name});
},
}
}
fn buildNarrativeJson(allocator: std.mem.Allocator, options: anytype) !?[]const u8 {
if (options.hypothesis == null and options.context == null and
options.intent == null and options.expected_outcome == null)
{
return null;
}
var buf = try std.ArrayList(u8).initCapacity(allocator, 256);
defer buf.deinit(allocator);
const writer = buf.writer(allocator);
try writer.writeAll("{");
var first = true;
if (options.hypothesis) |h| {
if (!first) try writer.writeAll(",");
try writer.print("\"hypothesis\":\"{s}\"", .{h});
first = false;
}
if (options.context) |c| {
if (!first) try writer.writeAll(",");
try writer.print("\"context\":\"{s}\"", .{c});
first = false;
}
if (options.intent) |i| {
if (!first) try writer.writeAll(",");
try writer.print("\"intent\":\"{s}\"", .{i});
first = false;
}
if (options.expected_outcome) |eo| {
if (!first) try writer.writeAll(",");
try writer.print("\"expected_outcome\":\"{s}\"", .{eo});
first = false;
}
try writer.writeAll("}");
return try buf.toOwnedSlice(allocator);
}