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$ bin/foreman help run
Usage:
  foreman run COMMAND [ARGS...]

Options:
  -e, [--env=ENV]            # Specify an environment file to load, defaults to .env
  -f, [--procfile=PROCFILE]  # Default: Procfile
  -d, [--root=ROOT]          # Default: Procfile directory

Run a command using your application's environment

DEFAULT OPTIONS
If a .foreman file exists in the current directory, default options will be read from it. This file should be in YAML format with the long option name as keys. Example:

formation: alpha=0,bravo=1
port: 15000

$ cargo package
    Updating git repository `https://github.com/yukihirop/roff-rs`
error: failed to select a version for the requirement `roff = "^0.1.0"`
candidate versions found which didn't match: 0.2.0
location searched: Git repository https://github.com/yukihirop/roff-rs
required by package `ultraman v0.1.0 (/Users/yukihirop/RustProjects/ultraman)`

$ ultraman --version
ultraman "0.1.2 ( rev: c5d1f03, rustc: 1.48.0, build at: 2020/12/25 12:29:56 )"

11:08:01 web.1              | 2023-12-11T19:08:01.393Z pid=103762 tid=2f5u INFO: Sidekiq 7.2.0 connecting to Redis with options {:size=>10, :pool_name=>"internal", :url=>nil}
11:08:01 web.1              | [103762] * Listening on http://0.0.0.0:3100 <-------------------- 
11:08:01 web.1              | [103762] Use Ctrl-C to stop
11:08:01 web.1              | [103762] - Worker 0 (PID: 104330) booted in 0.01s, phase: 0
11:08:01 web.1              | [103762] - Worker 1 (PID: 104334) booted in 0.01s, phase: 0
11:08:01 web.1              | [103762] - Worker 2 (PID: 104341) booted in 0.01s, phase: 0
11:08:01 web.1              | [103762] - Worker 3 (PID: 104354) booted in 0.0s, phase: 0

$ cargo run start -m "all=2"
warning: unused import: `Path`
  --> src/cmd/export/upstart.rs:11:17
   |
11 | use std::path::{Path, PathBuf};
   |                 ^^^^
   |
   = note: `#[warn(unused_imports)]` on by default

warning: use of deprecated function `dotenv::from_path_iter`: please use `from_path` in conjunction with `var` instead
  --> src/env.rs:10:25
   |
10 |     if let Some(iter) = dotenv::from_path_iter(filepath.as_path()).ok() {
   |                         ^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: `#[warn(deprecated)]` on by default

warning: 2 warnings emitted

    Finished dev [unoptimized + debuginfo] target(s) in 0.24s
     Running `target/debug/rustman start -m all=2`
thread 'main' panicked at 'Do not support formation: all=2', src/procfile.rs:63:13
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace

early_out: seq 100
sleep: sleep 20

$ bin/foreman help start
Usage:
  foreman start [PROCESS]

Options:
  -c, [--color], [--no-color]          # Force color to be enabled
  -e, [--env=ENV]                      # Specify an environment file to load, defaults to .env
  -m, [--formation="alpha=5,bar=3"]    # Specify what processes will run and how many. Default: "all=1"
  -p, [--port=N]
  -t, [--timeout=N]                    # Specify the amount of time (in seconds) processes have to shutdown gracefully before receiving a SIGKILL, defaults to 5.
      [--timestamp], [--no-timestamp]  # Include timestamp in output
                                       # Default: true
  -f, [--procfile=PROCFILE]            # Default: Procfile
  -d, [--root=ROOT]                    # Default: Procfile directory

Start the application (or a specific PROCESS)

$ cat sleep.sh
sleep 5000

$ cat Procfile 
sleep1: ./sleep.sh
sleep2: ./sleep.sh
sleep3: ./sleep.sh

$ ultraman start
17:40:53 system    | sleep3.1  start at pid: 3208
17:40:53 system    | sleep2.1  start at pid: 3210
17:40:53 system    | sleep1.1  start at pid: 3209

  PID USER      PR  NI    VIRT    RES    SHR S  %CPU %MEM     TIME+ COMMAND                                                            
 3204 user      20   0  759540   4204   3848 S 100.0  0.0   0:55.90 ultraman

$ which ultraman
/home/user/.cargo/bin/ultraman

$ ultraman --version
ultraman 0.1.2