initial release

This commit is contained in:
Penelope Gwen 2025-09-22 17:21:50 -07:00
commit b1a2822324
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[package]
name = "random-image"
authors = ["Penelope Gwen <support@pogmom.me>"]
version = "0.1.0"
edition = "2024"
description = "Finds a random image file in a directory and converts it into a sized square"
license-file = "license.md"
[dependencies]
clap = { version = "4.5.48", features = ["derive"] }
globwalk = "0.9.1"
magick_rust = "1.1.0"
rand = "0.9.2"
xdg = "3.0.0"

57
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# 🏳️‍🌈 Opinionated Queer License v1.2
© Copyright {Licensor}
## Permissions
The creators of this Work (“The Licensor”) grant permission
to any person, group or legal entity that doesn't violate the prohibitions below (“The User”),
to do everything with this Work that would otherwise infringe their copyright or any patent claims,
subject to the following conditions:
## Obligations
The User must give appropriate credit to the Licensor,
provide a copy of this license or a (clickable, if the medium allows) link to
[oql.avris.it/license/v1.2](https://oql.avris.it/license/v1.2),
and indicate whether and what kind of changes were made.
The User may do so in any reasonable manner,
but not in any way that suggests the Licensor endorses the User or their use.
## Prohibitions
No one may use this Work for prejudiced or bigoted purposes, including but not limited to:
racism, xenophobia, queerphobia, queer exclusionism, homophobia, transphobia, enbyphobia, misogyny.
No one may use this Work to inflict or facilitate violence or abuse of human rights,
as defined in either of the following documents:
[Universal Declaration of Human Rights](https://www.un.org/en/about-us/universal-declaration-of-human-rights),
[European Convention on Human Rights](https://prd-echr.coe.int/web/echr/european-convention-on-human-rights)
along with the rulings of the [European Court of Human Rights](https://www.echr.coe.int/).
No law enforcement, carceral institutions, immigration enforcement entities, military entities or military contractors
may use the Work for any reason. This also applies to any individuals employed by those entities.
No business entity where the ratio of pay (salaried, freelance, stocks, or other benefits)
between the highest and lowest individual in the entity is greater than 50 : 1
may use the Work for any reason.
No private business run for profit with more than a thousand employees
may use the Work for any reason.
Unless the User has made substantial changes to the Work,
or uses it only as a part of a new work (eg. as a library, as a part of an anthology, etc.),
they are prohibited from selling the Work.
That prohibition includes processing the Work with machine learning models.
## Sanctions
If the Licensor notifies the User that they have not complied with the rules of the license,
they can keep their license by complying within 30 days after the notice.
If they do not do so, their license ends immediately.
## Warranty
This Work is provided “as is”, without warranty of any kind, express or implied.
The Licensor will not be liable to anyone for any damages related to the Work or this license,
under any kind of legal claim as far as the law allows.

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#![warn(unused_crate_dependencies)]
use clap::Parser;
use magick_rust::MagickWand;
use std::path::{Path, PathBuf};
use rand::seq::IteratorRandom;
use xdg::BaseDirectories;
#[derive(Parser)]
#[command(version, about, long_about = None)]
struct Cli {
/// Which folder to use to locate the images
#[arg(short, long, value_name = "DIRECTORY")]
directory: PathBuf,
/// Size of the image to be output
#[arg(short, long, value_name = "WIDTH")]
size: usize,
/// Search directory recursively
#[arg(short = 'r', long = "recursive", action = clap::ArgAction::SetTrue)]
recursive: Option<bool>,
}
pub struct ImgOps {
width: usize,
height: usize,
x_offset: isize,
y_offset: isize
}
pub fn get_random_image(directory: &Path,recursive: Option<bool>) -> Result<PathBuf,String> {
match directory.canonicalize() {
Ok(d) => match d.is_dir() {
true => {
let mut rng = rand::rng();
let walker =
globwalk::GlobWalkerBuilder::from_patterns(&d, &["*.{png,jpg,gif,webp,heic}"])
.case_insensitive(true);
let imgs = match recursive.is_some_and(|x|x) {
true => {
walker.build().unwrap()
},
false => {
walker.max_depth(1).build().unwrap()
},
};
match imgs.choose(&mut rng).unwrap() {
Ok(o) => Ok(PathBuf::from(o.path())),
Err(e) => Err(e.to_string()),
}
},
false => Err(format!("{} is not a directory",d.to_str().unwrap_or_default())),
},
Err(e) => Err(e.to_string()),
}
}
pub fn output_path(image_path: PathBuf) -> Result<PathBuf,String> {
let xdg_dirs = BaseDirectories::with_prefix("random-image-scaler");
//;
match xdg_dirs.get_cache_home() {
Some(cache) => match xdg_dirs.create_cache_directory(cache) {
Ok(mut cache) => {
cache.push(image_path.strip_prefix("/").unwrap());
Ok(cache)
},
Err(e) => Err(e.to_string()),
}
None => Err("Could not resolve cache home?".to_string()),
}
}
pub fn calc_img_ops(orig_height: usize, orig_width: usize, size: usize) -> ImgOps {
let r = orig_width as f32 / orig_height as f32;
let w = match r.gt(&1.0) {
true => (r.abs() * size as f32) as usize,
false => size,
};
let h = match r.lt(&1.0) {
true => (r.abs() * size as f32) as usize,
false => size,
};
let x = match r.gt(&1.0) {
true => (w - size) / 2,
false => 0_usize,
} as isize;
let y = match r.lt(&1.0) {
true => (h - size) / 2,
false => 0_usize,
} as isize;
ImgOps{ width: w, height: h, x_offset: x, y_offset: y }
}
pub fn scale_image(image_path: PathBuf, cached_image_path: PathBuf, size: usize) -> Result<PathBuf,String> {
let magick_image = MagickWand::new();
match image_path.to_str() {
Some(img_str) => {
match magick_image.read_image(img_str) {
Ok(_) => {
let ops = calc_img_ops(magick_image.get_image_height(), magick_image.get_image_width(), size);
match magick_image.resize_image(ops.width, ops.height, magick_rust::FilterType::Cubic) {
Ok(_) => match magick_image.crop_image(size, size, ops.x_offset, ops.y_offset) {
Ok(_) => match cached_image_path.to_str() {
Some(cache_str) => match magick_image.write_image(cache_str) {
Ok(_) => Ok(cached_image_path),
Err(e) => Err(e.to_string()),
},
None => Err("Undefined filepath error".to_string()),
},
Err(_) => todo!(),
}
Err(e) => Err(e.to_string()),
}
},
Err(e) => Err(e.to_string()),
}
},
None => Err("Undefined filepath error".to_string()),
}
}
fn main() {
let cli = Cli::parse();
match get_random_image(&cli.directory, cli.recursive) {
Ok(image_path) => {
match output_path(image_path.clone()) {
Ok(cached_image_path) => match cached_image_path.exists() {
true => println!("{}",cached_image_path.to_str().unwrap_or_default()),
false => match scale_image(image_path, cached_image_path, cli.size) {
Ok(final_path) => println!("{}",final_path.to_str().unwrap_or_default()),
Err(e) => eprintln!("{}",e),
},
},
Err(e) => eprintln!("{}",e),
}
},
Err(e) => eprintln!("{}",e),
}
}