[feat] implement backend abstraction, dynamic backend selection, and GPU feature integration
This commit is contained in:
536
crates/polyscribe-cli/src/main.rs
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536
crates/polyscribe-cli/src/main.rs
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// SPDX-License-Identifier: MIT
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// Copyright (c) 2025 <COPYRIGHT HOLDER>. All rights reserved.
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use std::fs::{File, create_dir_all};
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use std::io::{self, Read, Write};
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use std::path::{Path, PathBuf};
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use anyhow::{Context, Result, anyhow};
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use clap::{Parser, Subcommand, ValueEnum, CommandFactory};
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use clap_complete::Shell;
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use serde::{Deserialize, Serialize};
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use polyscribe::{OutputEntry, date_prefix, normalize_lang_code, render_srt};
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use polyscribe_host as host;
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#[derive(Subcommand, Debug, Clone)]
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enum PluginsCmd {
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/// List available plugins
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List,
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/// Show plugin capabilities
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Info { name: String },
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/// Run a plugin command with a JSON payload
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Run {
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name: String,
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command: String,
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/// JSON payload string passed to the plugin as request.params
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#[arg(long = "json")]
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json: String,
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},
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}
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#[derive(Subcommand, Debug, Clone)]
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enum Command {
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Completions { #[arg(value_enum)] shell: Shell },
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Man,
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Plugins { #[command(subcommand)] cmd: PluginsCmd },
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}
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#[derive(ValueEnum, Debug, Clone, Copy)]
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#[value(rename_all = "kebab-case")]
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enum GpuBackendCli {
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Auto,
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Cpu,
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Cuda,
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Hip,
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Vulkan,
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}
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#[derive(Parser, Debug)]
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#[command(
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name = "PolyScribe",
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bin_name = "polyscribe",
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version,
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about = "Merge JSON transcripts or transcribe audio using native whisper"
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)]
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struct Args {
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/// Increase verbosity (-v, -vv). Repeat to increase.
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/// Debug logs appear with -v; very verbose with -vv. Logs go to stderr.
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#[arg(short = 'v', long = "verbose", action = clap::ArgAction::Count, global = true)]
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verbose: u8,
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/// Quiet mode: suppress non-error logging on stderr (overrides -v)
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/// Does not suppress interactive prompts or stdout output.
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#[arg(short = 'q', long = "quiet", global = true)]
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quiet: bool,
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/// Non-interactive mode: never prompt; use defaults instead.
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#[arg(long = "no-interaction", global = true)]
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no_interaction: bool,
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/// Disable interactive progress indicators (bars/spinners)
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#[arg(long = "no-progress", global = true)]
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no_progress: bool,
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/// Optional subcommands (completions, man, plugins)
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#[command(subcommand)]
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cmd: Option<Command>,
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/// Input .json transcript files or audio files to merge/transcribe
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inputs: Vec<String>,
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/// Output file path base or directory (date prefix added).
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/// In merge mode: base path.
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/// In separate mode: directory.
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/// If omitted: prints JSON to stdout for merge mode; separate mode requires directory for multiple inputs.
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#[arg(short, long, value_name = "FILE")]
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output: Option<String>,
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/// Merge all inputs into a single output; if not set, each input is written as a separate output
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#[arg(short = 'm', long = "merge")]
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merge: bool,
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/// Merge and also write separate outputs per input; requires -o OUTPUT_DIR
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#[arg(long = "merge-and-separate")]
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merge_and_separate: bool,
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/// Prompt for speaker names per input file
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#[arg(long = "set-speaker-names")]
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set_speaker_names: bool,
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/// Language code to use for transcription (e.g., en, de). No auto-detection.
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#[arg(short, long, value_name = "LANG")]
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language: Option<String>,
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/// Launch interactive model downloader (list HF models, multi-select and download)
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#[arg(long)]
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download_models: bool,
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/// Update local Whisper models by comparing hashes/sizes with remote manifest
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#[arg(long)]
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update_models: bool,
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}
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#[derive(Debug, Deserialize)]
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struct InputRoot {
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#[serde(default)]
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segments: Vec<InputSegment>,
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}
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#[derive(Debug, Deserialize)]
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struct InputSegment {
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start: f64,
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end: f64,
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text: String,
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}
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#[derive(Debug, Serialize)]
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struct OutputRoot {
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items: Vec<OutputEntry>,
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}
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fn is_json_file(path: &Path) -> bool {
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matches!(path.extension().and_then(|s| s.to_str()).map(|s| s.to_lowercase()), Some(ext) if ext == "json")
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}
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fn is_audio_file(path: &Path) -> bool {
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if let Some(ext) = path.extension().and_then(|s| s.to_str()).map(|s| s.to_lowercase()) {
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let exts = [
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"mp3", "wav", "m4a", "mp4", "aac", "flac", "ogg", "wma", "webm", "mkv", "mov", "avi",
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"m4b", "3gp", "opus", "aiff", "alac",
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];
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return exts.contains(&ext.as_str());
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}
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false
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}
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fn validate_input_path(path: &Path) -> anyhow::Result<()> {
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let display = path.display();
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if !path.exists() {
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return Err(anyhow!("Input not found: {}", display));
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}
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let metadata = std::fs::metadata(path).with_context(|| format!("Failed to stat input: {}", display))?;
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if metadata.is_dir() {
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return Err(anyhow!("Input is a directory (expected a file): {}", display));
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}
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std::fs::File::open(path)
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.with_context(|| format!("Failed to open input file: {}", display))
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.map(|_| ())
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}
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fn sanitize_speaker_name(raw: &str) -> String {
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if let Some((prefix, rest)) = raw.split_once('-') {
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if !prefix.is_empty() && prefix.chars().all(|c| c.is_ascii_digit()) {
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return rest.to_string();
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}
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}
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raw.to_string()
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}
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fn prompt_speaker_name_for_path(
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_path: &Path,
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default_name: &str,
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enabled: bool,
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) -> String {
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if !enabled || polyscribe::is_no_interaction() {
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return sanitize_speaker_name(default_name);
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}
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// TODO implement cliclack for this
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let mut input_line = String::new();
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match std::io::stdin().read_line(&mut input_line) {
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Ok(_) => {
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let trimmed = input_line.trim();
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if trimmed.is_empty() {
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sanitize_speaker_name(default_name)
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} else {
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sanitize_speaker_name(trimmed)
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}
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}
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Err(_) => sanitize_speaker_name(default_name),
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}
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}
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fn handle_plugins(cmd: PluginsCmd) -> Result<()> {
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match cmd {
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PluginsCmd::List => {
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let list = host::discover()?;
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for p in list {
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println!("{}\t{}", p.name, p.path.display());
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}
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Ok(())
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}
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PluginsCmd::Info { name } => {
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let p = host::find_plugin_by_name(&name)?;
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let caps = host::capabilities(&p.path)?;
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println!("{}", serde_json::to_string_pretty(&caps)?);
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Ok(())
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}
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PluginsCmd::Run { name, command, json } => {
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let p = host::find_plugin_by_name(&name)?;
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let params: serde_json::Value = serde_json::from_str(&json).context("--json payload must be valid JSON")?;
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let mut last_pct = 0u8;
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let result = host::run_method(&p.path, &command, params, |prog| {
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// Render minimal progress
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let stage = prog.stage.as_deref().unwrap_or("");
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let msg = prog.message.as_deref().unwrap_or("");
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if prog.pct != last_pct {
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let _ = cliclack::log::info(format!("[{}%] {} {}", prog.pct, stage, msg).trim());
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last_pct = prog.pct;
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}
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})?;
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println!("{}", serde_json::to_string_pretty(&result)?);
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Ok(())
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}
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}
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}
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fn main() -> Result<()> {
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let args = Args::parse();
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// Initialize runtime flags for the library
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polyscribe::set_verbose(args.verbose);
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polyscribe::set_quiet(args.quiet);
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polyscribe::set_no_interaction(args.no_interaction);
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polyscribe::set_no_progress(args.no_progress);
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// Handle subcommands
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if let Some(cmd) = &args.cmd {
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match cmd.clone() {
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Command::Completions { shell } => {
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let mut cmd = Args::command();
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let bin_name = cmd.get_name().to_string();
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clap_complete::generate(shell, &mut cmd, bin_name, &mut io::stdout());
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return Ok(());
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}
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Command::Man => {
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let cmd = Args::command();
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let man = clap_mangen::Man::new(cmd);
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let mut man_bytes = Vec::new();
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man.render(&mut man_bytes)?;
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io::stdout().write_all(&man_bytes)?;
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return Ok(());
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}
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Command::Plugins { cmd } => {
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return handle_plugins(cmd);
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}
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}
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}
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// Optional model management actions
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if args.download_models {
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if let Err(err) = polyscribe::models::run_interactive_model_downloader() {
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polyscribe::elog!("Model downloader failed: {:#}", err);
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}
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if args.inputs.is_empty() {
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return Ok(())
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}
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}
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if args.update_models {
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if let Err(err) = polyscribe::models::update_local_models() {
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polyscribe::elog!("Model update failed: {:#}", err);
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return Err(err);
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}
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if args.inputs.is_empty() {
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return Ok(())
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}
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}
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// Process inputs
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let mut inputs = args.inputs;
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if inputs.is_empty() {
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return Err(anyhow!("No input files provided"));
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}
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// If last arg looks like an output path and not existing file, accept it as -o when multiple inputs
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let mut output_path = args.output;
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if output_path.is_none() && inputs.len() >= 2 {
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if let Some(candidate_output) = inputs.last().cloned() {
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if !Path::new(&candidate_output).exists() {
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inputs.pop();
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output_path = Some(candidate_output);
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}
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}
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}
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// Validate inputs; allow JSON and audio. For audio, require --language.
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for input_arg in &inputs {
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let path_ref = Path::new(input_arg);
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validate_input_path(path_ref)?;
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if !(is_json_file(path_ref) || is_audio_file(path_ref)) {
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return Err(anyhow!(
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"Unsupported input type (expected .json transcript or audio media): {}",
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path_ref.display()
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));
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}
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if is_audio_file(path_ref) && args.language.is_none() {
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return Err(anyhow!("Please specify --language (e.g., --language en). Language detection was removed."));
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}
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}
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// Derive speakers (prompt if requested)
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let speakers: Vec<String> = inputs
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.iter()
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.map(|input_path| {
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let path = Path::new(input_path);
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let default_speaker = sanitize_speaker_name(
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path.file_stem().and_then(|s| s.to_str()).unwrap_or("speaker"),
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);
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prompt_speaker_name_for_path(path, &default_speaker, args.set_speaker_names)
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})
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.collect();
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// MERGE-AND-SEPARATE mode
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if args.merge_and_separate {
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polyscribe::dlog!(1, "Mode: merge-and-separate; output_dir={:?}", output_path);
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let out_dir = match output_path.as_ref() {
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Some(p) => PathBuf::from(p),
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None => return Err(anyhow!("--merge-and-separate requires -o OUTPUT_DIR")),
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};
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if !out_dir.as_os_str().is_empty() {
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create_dir_all(&out_dir).with_context(|| {
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format!("Failed to create output directory: {}", out_dir.display())
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})?;
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}
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let mut merged_entries: Vec<OutputEntry> = Vec::new();
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for (idx, input_path) in inputs.iter().enumerate() {
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let path = Path::new(input_path);
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let speaker = speakers[idx].clone();
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// Decide based on input type (JSON transcript vs audio to transcribe)
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// TODO remove duplicate
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let mut entries: Vec<OutputEntry> = if is_json_file(path) {
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let mut buf = String::new();
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File::open(path)
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.with_context(|| format!("Failed to open: {input_path}"))?
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.read_to_string(&mut buf)
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.with_context(|| format!("Failed to read: {input_path}"))?;
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let root: InputRoot = serde_json::from_str(&buf)
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.with_context(|| format!("Invalid JSON transcript parsed from {input_path}"))?;
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root
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.segments
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.into_iter()
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.map(|seg| OutputEntry { id: 0, speaker: speaker.clone(), start: seg.start, end: seg.end, text: seg.text })
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.collect()
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} else {
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let lang_norm: Option<String> = args.language.as_deref().and_then(|s| normalize_lang_code(s));
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let selected_backend = polyscribe::backend::select_backend(polyscribe::backend::BackendKind::Auto, args.verbose > 0)?;
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selected_backend.backend.transcribe(path, &speaker, lang_norm.as_deref(), None, None)?
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};
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// Sort and id per-file
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// TODO remove duplicate
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entries.sort_by(|a, b| a.start.partial_cmp(&b.start).unwrap_or(std::cmp::Ordering::Equal)
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.then(a.end.partial_cmp(&b.end).unwrap_or(std::cmp::Ordering::Equal)));
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for (i, entry) in entries.iter_mut().enumerate() { entry.id = i as u64; }
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// Write per-file outputs
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let stem = path.file_stem().and_then(|s| s.to_str()).unwrap_or("output");
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let date = date_prefix();
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let base_name = format!("{date}_{stem}");
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let json_path = out_dir.join(format!("{}.json", &base_name));
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let toml_path = out_dir.join(format!("{}.toml", &base_name));
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let srt_path = out_dir.join(format!("{}.srt", &base_name));
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let output_bundle = OutputRoot { items: entries.clone() };
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let mut json_file = File::create(&json_path).with_context(|| format!("Failed to create output file: {}", json_path.display()))?;
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serde_json::to_writer_pretty(&mut json_file, &output_bundle)?; writeln!(&mut json_file)?;
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let toml_str = toml::to_string_pretty(&output_bundle)?;
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let mut toml_file = File::create(&toml_path).with_context(|| format!("Failed to create output file: {}", toml_path.display()))?;
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toml_file.write_all(toml_str.as_bytes())?; if !toml_str.ends_with('\n') { writeln!(&mut toml_file)?; }
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let srt_str = render_srt(&output_bundle.items);
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let mut srt_file = File::create(&srt_path).with_context(|| format!("Failed to create output file: {}", srt_path.display()))?;
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srt_file.write_all(srt_str.as_bytes())?;
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merged_entries.extend(output_bundle.items.into_iter());
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}
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// Write merged outputs into out_dir
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// TODO remove duplicate
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merged_entries.sort_by(|a, b| a.start.partial_cmp(&b.start).unwrap_or(std::cmp::Ordering::Equal)
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.then(a.end.partial_cmp(&b.end).unwrap_or(std::cmp::Ordering::Equal)));
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for (index, entry) in merged_entries.iter_mut().enumerate() { entry.id = index as u64; }
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let merged_output = OutputRoot { items: merged_entries };
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let date = date_prefix();
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let merged_base = format!("{date}_merged");
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let merged_json_path = out_dir.join(format!("{}.json", &merged_base));
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let merged_toml_path = out_dir.join(format!("{}.toml", &merged_base));
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let merged_srt_path = out_dir.join(format!("{}.srt", &merged_base));
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let mut merged_json_file = File::create(&merged_json_path).with_context(|| format!("Failed to create output file: {}", merged_json_path.display()))?;
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serde_json::to_writer_pretty(&mut merged_json_file, &merged_output)?; writeln!(&mut merged_json_file)?;
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let merged_toml_str = toml::to_string_pretty(&merged_output)?;
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let mut merged_toml_file = File::create(&merged_toml_path).with_context(|| format!("Failed to create output file: {}", merged_toml_path.display()))?;
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merged_toml_file.write_all(merged_toml_str.as_bytes())?; if !merged_toml_str.ends_with('\n') { writeln!(&mut merged_toml_file)?; }
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let merged_srt_str = render_srt(&merged_output.items);
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let mut merged_srt_file = File::create(&merged_srt_path).with_context(|| format!("Failed to create output file: {}", merged_srt_path.display()))?;
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merged_srt_file.write_all(merged_srt_str.as_bytes())?;
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return Ok(());
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}
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// MERGE mode
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if args.merge {
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polyscribe::dlog!(1, "Mode: merge; output_base={:?}", output_path);
|
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let mut entries: Vec<OutputEntry> = Vec::new();
|
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for (index, input_path) in inputs.iter().enumerate() {
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let path = Path::new(input_path);
|
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let speaker = speakers[index].clone();
|
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if is_json_file(path) {
|
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let mut buf = String::new();
|
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File::open(path)
|
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.with_context(|| format!("Failed to open: {}", input_path))?
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||||
.read_to_string(&mut buf)
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||||
.with_context(|| format!("Failed to read: {}", input_path))?;
|
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let root: InputRoot = serde_json::from_str(&buf)
|
||||
.with_context(|| format!("Invalid JSON transcript parsed from {}", input_path))?;
|
||||
for seg in root.segments {
|
||||
entries.push(OutputEntry { id: 0, speaker: speaker.clone(), start: seg.start, end: seg.end, text: seg.text });
|
||||
}
|
||||
} else {
|
||||
let lang_norm: Option<String> = args.language.as_deref().and_then(|s| normalize_lang_code(s));
|
||||
let selected_backend = polyscribe::backend::select_backend(polyscribe::backend::BackendKind::Auto, args.verbose > 0)?;
|
||||
let mut new_entries = selected_backend.backend.transcribe(path, &speaker, lang_norm.as_deref(), None, None)?;
|
||||
entries.append(&mut new_entries);
|
||||
}
|
||||
}
|
||||
// TODO remove duplicate
|
||||
entries.sort_by(|a, b| a.start.partial_cmp(&b.start).unwrap_or(std::cmp::Ordering::Equal)
|
||||
.then(a.end.partial_cmp(&b.end).unwrap_or(std::cmp::Ordering::Equal)));
|
||||
for (i, entry) in entries.iter_mut().enumerate() { entry.id = i as u64; }
|
||||
let output_bundle = OutputRoot { items: entries };
|
||||
|
||||
if let Some(path) = output_path {
|
||||
let base_path = Path::new(&path);
|
||||
let parent_opt = base_path.parent();
|
||||
if let Some(parent) = parent_opt {
|
||||
if !parent.as_os_str().is_empty() {
|
||||
create_dir_all(parent).with_context(|| {
|
||||
format!("Failed to create parent directory for output: {}", parent.display())
|
||||
})?;
|
||||
}
|
||||
}
|
||||
let stem = base_path.file_stem().and_then(|s| s.to_str()).unwrap_or("output");
|
||||
let date = date_prefix();
|
||||
let base_name = format!("{}_{}", date, stem);
|
||||
let dir = parent_opt.unwrap_or(Path::new(""));
|
||||
let json_path = dir.join(format!("{}.json", &base_name));
|
||||
let toml_path = dir.join(format!("{}.toml", &base_name));
|
||||
let srt_path = dir.join(format!("{}.srt", &base_name));
|
||||
|
||||
let mut json_file = File::create(&json_path).with_context(|| format!("Failed to create output file: {}", json_path.display()))?;
|
||||
serde_json::to_writer_pretty(&mut json_file, &output_bundle)?; writeln!(&mut json_file)?;
|
||||
let toml_str = toml::to_string_pretty(&output_bundle)?;
|
||||
let mut toml_file = File::create(&toml_path).with_context(|| format!("Failed to create output file: {}", toml_path.display()))?;
|
||||
toml_file.write_all(toml_str.as_bytes())?; if !toml_str.ends_with('\n') { writeln!(&mut toml_file)?; }
|
||||
let srt_str = render_srt(&output_bundle.items);
|
||||
let mut srt_file = File::create(&srt_path).with_context(|| format!("Failed to create output file: {}", srt_path.display()))?;
|
||||
srt_file.write_all(srt_str.as_bytes())?;
|
||||
} else {
|
||||
let stdout = io::stdout();
|
||||
let mut handle = stdout.lock();
|
||||
serde_json::to_writer_pretty(&mut handle, &output_bundle)?; writeln!(&mut handle)?;
|
||||
}
|
||||
return Ok(());
|
||||
}
|
||||
|
||||
// SEPARATE (default)
|
||||
polyscribe::dlog!(1, "Mode: separate; output_dir={:?}", output_path);
|
||||
if output_path.is_none() && inputs.len() > 1 {
|
||||
return Err(anyhow!("Multiple inputs without --merge require -o OUTPUT_DIR to write separate files"));
|
||||
}
|
||||
let out_dir: Option<PathBuf> = output_path.as_ref().map(PathBuf::from);
|
||||
if let Some(dir) = &out_dir {
|
||||
if !dir.as_os_str().is_empty() {
|
||||
create_dir_all(dir).with_context(|| format!("Failed to create output directory: {}", dir.display()))?;
|
||||
}
|
||||
}
|
||||
|
||||
for (index, input_path) in inputs.iter().enumerate() {
|
||||
let path = Path::new(input_path);
|
||||
let speaker = speakers[index].clone();
|
||||
// TODO remove duplicate
|
||||
let mut entries: Vec<OutputEntry> = if is_json_file(path) {
|
||||
let mut buf = String::new();
|
||||
File::open(path)
|
||||
.with_context(|| format!("Failed to open: {input_path}"))?
|
||||
.read_to_string(&mut buf)
|
||||
.with_context(|| format!("Failed to read: {input_path}"))?;
|
||||
let root: InputRoot = serde_json::from_str(&buf)
|
||||
.with_context(|| format!("Invalid JSON transcript parsed from {input_path}"))?;
|
||||
root
|
||||
.segments
|
||||
.into_iter()
|
||||
.map(|seg| OutputEntry { id: 0, speaker: speaker.clone(), start: seg.start, end: seg.end, text: seg.text })
|
||||
.collect()
|
||||
} else {
|
||||
let lang_norm: Option<String> = args.language.as_deref().and_then(|s| normalize_lang_code(s));
|
||||
let selected_backend = polyscribe::backend::select_backend(polyscribe::backend::BackendKind::Auto, args.verbose > 0)?;
|
||||
selected_backend.backend.transcribe(path, &speaker, lang_norm.as_deref(), None, None)?
|
||||
};
|
||||
// TODO remove duplicate
|
||||
entries.sort_by(|a, b| a.start.partial_cmp(&b.start).unwrap_or(std::cmp::Ordering::Equal)
|
||||
.then(a.end.partial_cmp(&b.end).unwrap_or(std::cmp::Ordering::Equal)));
|
||||
for (i, entry) in entries.iter_mut().enumerate() { entry.id = i as u64; }
|
||||
|
||||
let stem = path.file_stem().and_then(|s| s.to_str()).unwrap_or("output");
|
||||
let date = date_prefix();
|
||||
let base_name = format!("{date}_{stem}");
|
||||
if let Some(dir) = &out_dir {
|
||||
let json_path = dir.join(format!("{}.json", &base_name));
|
||||
let toml_path = dir.join(format!("{}.toml", &base_name));
|
||||
let srt_path = dir.join(format!("{}.srt", &base_name));
|
||||
let output_bundle = OutputRoot { items: entries };
|
||||
let mut json_file = File::create(&json_path).with_context(|| format!("Failed to create output file: {}", json_path.display()))?;
|
||||
serde_json::to_writer_pretty(&mut json_file, &output_bundle)?; writeln!(&mut json_file)?;
|
||||
let toml_str = toml::to_string_pretty(&output_bundle)?;
|
||||
let mut toml_file = File::create(&toml_path).with_context(|| format!("Failed to create output file: {}", toml_path.display()))?;
|
||||
toml_file.write_all(toml_str.as_bytes())?; if !toml_str.ends_with('\n') { writeln!(&mut toml_file)?; }
|
||||
let srt_str = render_srt(&output_bundle.items);
|
||||
let mut srt_file = File::create(&srt_path).with_context(|| format!("Failed to create output file: {}", srt_path.display()))?;
|
||||
srt_file.write_all(srt_str.as_bytes())?;
|
||||
} else {
|
||||
// In separate mode with single input and no output dir, print JSON to stdout
|
||||
let stdout = io::stdout();
|
||||
let mut handle = stdout.lock();
|
||||
let output_bundle = OutputRoot { items: entries };
|
||||
serde_json::to_writer_pretty(&mut handle, &output_bundle)?; writeln!(&mut handle)?;
|
||||
}
|
||||
}
|
||||
|
||||
Ok(())
|
||||
}
|
||||
Reference in New Issue
Block a user