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Extract build specific logic to build crate, refactor crate
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,176 +1,21 @@ | ||
| use std::{ | ||
| collections::HashMap, | ||
| env, | ||
| ffi::OsStr, | ||
| io, | ||
| path::{Path, PathBuf}, | ||
| }; | ||
| //! Save constant names for icons and manifest path | ||
| use gvdb::gresource::{GResourceBuilder, GResourceFileData, PreprocessOptions}; | ||
|
|
||
| const CONFIG_FILE: &str = "icons.toml"; | ||
| const GENERAL_PREFIX: &str = "/org/gtkrs/icons/scalable/actions/"; | ||
| const SHIPPED_ICONS_PATH: &str = "icons"; | ||
|
|
||
| const TARGET_FILE: &str = "resources.gresource"; | ||
| const CONSTANTS_FILE: &str = "icon_names.rs"; | ||
|
|
||
| #[derive(Default, serde::Deserialize)] | ||
| struct Config { | ||
| app_id: Option<String>, | ||
| base_resource_path: Option<String>, | ||
| icon_folder: Option<String>, | ||
| icons: Option<Vec<String>>, | ||
| } | ||
|
|
||
| impl Config { | ||
| fn load(dir: &str) -> Result<Self, io::Error> { | ||
| let config_path: PathBuf = [dir, CONFIG_FILE].iter().collect(); | ||
| let config_file = std::fs::read_to_string(config_path)?; | ||
| Ok(toml::from_str(&config_file).expect("Couldn't parse icon config file")) | ||
| } | ||
| } | ||
|
|
||
| fn path_to_icon_name(string: &OsStr) -> String { | ||
| match string.to_str() { | ||
| Some(string) => { | ||
| if string.ends_with(".svg") { | ||
| string | ||
| .trim_end_matches("-symbolic.svg") | ||
| .trim_end_matches(".svg") | ||
| .to_owned() | ||
| } else { | ||
| panic!("Found non-icon file `{string}`"); | ||
| } | ||
| } | ||
| None => panic!("Failed to convert file name `{string:?}` to string"), | ||
| } | ||
| } | ||
| const CONSTANTS_FILE: &str = "constants.rs"; | ||
|
|
||
| fn main() { | ||
| let out_dir = env::var("OUT_DIR").unwrap(); | ||
| let mut manifest_dir = Path::new(&out_dir).canonicalize().unwrap(); | ||
| eprintln!("Canonical manifest dir: {manifest_dir:?}"); | ||
|
|
||
| let (config, config_dir) = if cfg!(docsrs) { | ||
| if let Ok(source_dir) = env::var("SOURCE_DIR") { | ||
| (Config::load(&source_dir).unwrap_or_default(), source_dir) | ||
| } else { | ||
| (Config::default(), "".into()) | ||
| } | ||
| } else { | ||
| // Try finding the target directory which is just below the manifest directory | ||
| // of the user. | ||
| // Unfortunately, the CARGO_MANIFEST_DIR env var passed by cargo always points | ||
| // to this crate, so we wouldn't find the users config file this way. | ||
| while !manifest_dir.join("Cargo.toml").exists() { | ||
| if !manifest_dir.pop() { | ||
| panic!("Couldn't find your manifest directory"); | ||
| } | ||
| } | ||
| let config_dir = manifest_dir | ||
| .to_str() | ||
| .expect("Couldn't convert manifest directory to string") | ||
| .to_owned(); | ||
| ( | ||
| Config::load(&config_dir).expect("Couldn't find `icons.toml` next to `Cargo.toml`"), | ||
| config_dir, | ||
| ) | ||
| }; | ||
| let out_dir = std::env::var("OUT_DIR").unwrap(); | ||
|
|
||
| eprintln!("Canonical config dir: {config_dir:?}"); | ||
| println!("cargo:rerun-if-changed={config_dir}/icons.toml"); | ||
|
|
||
| let mut icons: HashMap<String, PathBuf> = HashMap::new(); | ||
|
|
||
| if let Some(folder) = &config.icon_folder { | ||
| println!("cargo:rerun-if-changed={folder}"); | ||
| let custom_icons_path: PathBuf = [&config_dir, folder].iter().collect(); | ||
| let read_dir = std::fs::read_dir(custom_icons_path) | ||
| .expect("Couldn't open icon path specified in config (relative to the manifest)"); | ||
| for entry in read_dir { | ||
| let entry = entry.unwrap(); | ||
| let icon_name = path_to_icon_name(&entry.file_name()); | ||
| if icons.insert(icon_name.clone(), entry.path()).is_some() { | ||
| panic!("Icon with name `{icon_name}` exists twice") | ||
| } | ||
| } | ||
| } | ||
|
|
||
| if let Some(icon_names) = config.icons { | ||
| let dirs = | ||
| std::fs::read_dir(SHIPPED_ICONS_PATH).expect("Couldn't open folder of shipped icons"); | ||
| let dirs: Vec<_> = dirs | ||
| .map(|entry| { | ||
| let entry = entry.expect("Couldn't open directories in shipped icon folder"); | ||
| entry.path() | ||
| }) | ||
| .collect(); | ||
|
|
||
| 'outer: for icon_name in icon_names { | ||
| for dir in &dirs { | ||
| let icon_file_name = format!("{icon_name}-symbolic.svg"); | ||
| let icon_path = dir.join(icon_file_name); | ||
| if icon_path.exists() { | ||
| if icons.insert(icon_name.clone(), icon_path).is_some() { | ||
| panic!("Icon with name `{icon_name}` exists twice") | ||
| } | ||
| continue 'outer; | ||
| } | ||
| } | ||
| panic!("Icon {icon_name} not found in shipped icons"); | ||
| } | ||
| } | ||
|
|
||
| let prefix = if let Some(base_resource_path) = &config.base_resource_path { | ||
| format!("{}icons/scalable/actions/", base_resource_path) | ||
| } else if let Some(app_id) = &config.app_id { | ||
| format!("/{}/icons/scalable/actions/", app_id.replace('.', "/")) | ||
| } else { | ||
| GENERAL_PREFIX.into() | ||
| }; | ||
|
|
||
| // Generate resource bundle | ||
| let resources = icons | ||
| .iter() | ||
| .map(|(icon, path)| { | ||
| GResourceFileData::from_file( | ||
| [&prefix, icon, "-symbolic.svg"].into_iter().collect(), | ||
| path, | ||
| true, | ||
| &PreprocessOptions::xml_stripblanks(), | ||
| ) | ||
| .unwrap() | ||
| }) | ||
| .collect(); | ||
|
|
||
| let data = GResourceBuilder::from_file_data(resources) | ||
| .build() | ||
| .expect("Failed to build resource bundle"); | ||
|
|
||
| std::fs::write(Path::new(&out_dir).join(TARGET_FILE), data).unwrap(); | ||
| let manifest_path = std::env::var("CARGO_MANIFEST_DIR").unwrap(); | ||
|
|
||
| // Create file that contains the icon names as constants | ||
| let constants: String = icons | ||
| .iter() | ||
| .map(|(icon_name, icon_path)| { | ||
| let const_name = icon_name.to_uppercase().replace('-', "_"); | ||
| format!( | ||
| " | ||
| /// Icon name of the icon `{icon_name}`, found at `{icon_path:?}`. | ||
| pub const {const_name}: &str = \"{icon_name}\"; | ||
| " | ||
| ) | ||
| }) | ||
| .chain([format!( | ||
| "pub(crate) const APP_ID: &str = \"{}\";", | ||
| config.app_id.unwrap_or_default() | ||
| )]) | ||
| .chain([format!( | ||
| "pub(crate) const BASE_RESOURCE_PATH: &str = \"{}\";", | ||
| config.base_resource_path.unwrap_or_default() | ||
| )]) | ||
| .collect(); | ||
|
|
||
| std::fs::write(Path::new(&out_dir).join(CONSTANTS_FILE), constants).unwrap(); | ||
| let constants = format!( | ||
| "pub const SHIPPED_ICONS_PATH: &str = \"{}/icons\";", | ||
| manifest_path | ||
| ); | ||
|
|
||
| std::fs::write( | ||
| std::path::Path::new(&out_dir).join(CONSTANTS_FILE), | ||
| constants, | ||
| ) | ||
| .unwrap(); | ||
| } |
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