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Merged
TroyHernandez merged 2 commits into from
Mar 18, 2026
Merged

Warn when torch backend is not installed #7

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7d66f08
Warn when torch backend is not installed
TroyHernandez Mar 18, 2026
caf2fbf
Fix install_torch docs: sudo for system library
TroyHernandez Mar 18, 2026
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9 changes: 9 additions & 0 deletions R/zzz.R
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Expand Up @@ -2,3 +2,12 @@
#' @importFrom stats setNames
NULL

.onAttach <- function(libname, pkgname) {
if (!torch::torch_is_installed()) {
packageStartupMessage(
"torch backend (Lantern) is not installed.\n",
"Run torch::install_torch() to complete setup."
)
}
}

10 changes: 10 additions & 0 deletions README.md
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Expand Up @@ -6,12 +6,22 @@ Native R torch implementation of OpenAI Whisper for speech-to-text transcription

```r
install.packages("whisper")
torch::install_torch() # one-time: downloads the C++ backend
```

Or install the development version from GitHub:

```r
remotes::install_github("cornball-ai/whisper")
torch::install_torch()
```

`{whisper}` uses `{torch}` for inference. After installing the R package, `install_torch()` downloads the compiled C++ libraries (Lantern). You only need to run it once.

**littler/r2u users:** If `install_torch()` fails with a permissions error, torch was installed to the system library. Use sudo for the one-time Lantern download:

```bash
sudo r -e 'torch::install_torch()'
```

## Quick Start
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