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51 lines
1.6 KiB
Rust
51 lines
1.6 KiB
Rust
use std::ffi::OsStr;
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use crate::{
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formats::{ImageFormat, ProcessableFormat},
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magick::{MagickError, MAGICK_CONFIGURE_PATH, MAGICK_TEMPORARY_PATH},
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process::Process,
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state::State,
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};
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pub(super) async fn thumbnail_command<S>(
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state: &State<S>,
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input_format: ProcessableFormat,
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thumbnail_format: ImageFormat,
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) -> Result<Process, MagickError> {
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let format = ProcessableFormat::Image(thumbnail_format);
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let quality = state.config.media.image.quality_for(thumbnail_format);
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let temporary_path = state
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.tmp_dir
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.tmp_folder()
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.await
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.map_err(MagickError::CreateTemporaryDirectory)?;
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let input_arg = format!("{}:-", input_format.magick_format());
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let output_arg = format!("{}:-", format.magick_format());
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let quality = quality.map(|q| q.to_string());
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let len = 3 + if format.coalesce() { 1 } else { 0 } + if quality.is_some() { 1 } else { 0 };
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let mut args: Vec<&OsStr> = Vec::with_capacity(len);
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args.push("convert".as_ref());
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args.push(input_arg.as_ref());
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if format.coalesce() {
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args.push("-coalesce".as_ref());
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}
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if let Some(quality) = &quality {
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args.extend(["-quality".as_ref(), quality.as_ref()] as [&OsStr; 2]);
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}
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args.push(output_arg.as_ref());
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let envs = [
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(MAGICK_TEMPORARY_PATH, temporary_path.as_os_str()),
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(MAGICK_CONFIGURE_PATH, state.policy_dir.as_os_str()),
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];
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let process = Process::run("magick", &args, &envs, state.config.media.process_timeout)
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.await?
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.add_extras(temporary_path);
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Ok(process)
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}
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