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Merge pull request #3 from ereslibre/ls-rm
Implement list, pull force and rm
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,53 @@ | ||
| use anyhow::Result; | ||
| use pathdiff::diff_paths; | ||
| use std::{fs, path::Path}; | ||
| use term_table::{row::Row, Table, TableStyle}; | ||
|
|
||
| use crate::store::{ALL_MODULES_STORE_ROOT, STORE_ROOT}; | ||
|
|
||
| pub(crate) fn ls() { | ||
| let mut table = Table::new(); | ||
| table.style = TableStyle::simple(); | ||
| table.add_row(Row::new(vec!["Name", "Location"])); | ||
| for module in fs::read_dir(ALL_MODULES_STORE_ROOT.as_path()) | ||
| .expect("could not read store root") | ||
| .flatten() | ||
| { | ||
| if let Some(module_name) = module.file_name().to_str() { | ||
| table.add_row(Row::new(vec![ | ||
| module_name, | ||
| &module_store_location(&module.path()).expect("invalid filename"), | ||
| ])); | ||
| } | ||
| } | ||
| println!("{}", table.render()); | ||
| } | ||
|
|
||
| // Given a module location in the directory where symlinks to all | ||
| // modules are located, give back the URI resembling where this module | ||
| // was pulled from, or the path to the local filesystem where this | ||
| // module is located if it wasn't pulled from a remote location | ||
| fn module_store_location(module_path: &Path) -> Result<String> { | ||
| let module_path = std::fs::read_link(module_path)?; | ||
| // If this module was added from somehwere in the filesystem | ||
| // (outside of the store), just return it as it is | ||
| if !module_path.starts_with(STORE_ROOT.as_path()) { | ||
| return Ok(format!( | ||
| "{} (not in the store)", | ||
| module_path.to_str().expect("invalid path") | ||
| )); | ||
| } | ||
| let path = diff_paths(module_path, STORE_ROOT.as_path()).expect("failed to diff paths"); | ||
| let mut component_iterator = path.components(); | ||
| let scheme = component_iterator.next().expect("invalid path"); | ||
| Ok(component_iterator.fold( | ||
| format!("{}:/", scheme.as_os_str().to_str().expect("invalid path")), | ||
| |acc, element| { | ||
| format!( | ||
| "{}/{}", | ||
| acc, | ||
| element.as_os_str().to_str().expect("invalid path") | ||
| ) | ||
| }, | ||
| )) | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,59 @@ | ||
| use crate::store::STORE_ROOT; | ||
|
|
||
| use std::path::PathBuf; | ||
|
|
||
| // This removes the module from the store, and then removes both | ||
| // links, the `all` toplevel link of the module itself, and the | ||
| // kubectl-plugin link to `krew-wasm`. When the module is removed from | ||
| // the store, it also cleans up the structure up to the root of the | ||
| // store, so no empty folders are kept around in the store | ||
| pub(crate) fn rm(module: &str) { | ||
| let (module_paths, module_store_path) = | ||
| crate::store::all_module_paths(module).expect("failed to get module paths for module"); | ||
|
|
||
| // Unlink files that can be directly removed without any extra | ||
| // cleanup: the toplevel "all" module and the symlink for the | ||
| // kubectl-plugin | ||
| for path in module_paths { | ||
| #[allow(unused_must_use)] | ||
| { | ||
| std::fs::remove_file(path); | ||
| } | ||
| } | ||
|
|
||
| if !module_store_path.starts_with(STORE_ROOT.as_path()) { | ||
| // Nothing to clean in the store itself, given this module | ||
| // comes from another part of the filesystem. Just return. | ||
| return; | ||
| } | ||
|
|
||
| #[allow(unused_must_use)] | ||
| { | ||
| std::fs::remove_file(&module_store_path); | ||
| } | ||
|
|
||
| // Clean up parent directories in the store up to its root | ||
| { | ||
| let mut prefix = STORE_ROOT.clone(); | ||
| let module_leading_store_components = module_store_path | ||
| .iter() | ||
| .map(|component| { | ||
| prefix = prefix.join(component); | ||
| prefix.clone() | ||
| }) | ||
| .collect::<Vec<PathBuf>>(); | ||
|
|
||
| module_leading_store_components | ||
| .iter() | ||
| .rev() | ||
| .skip(1) // module file -- already unlinked | ||
| .take(module_store_path.components().count() - STORE_ROOT.components().count() - 1 /* krew-wasm-store */) | ||
| .for_each(|component| { | ||
| #[allow(unused_must_use)] | ||
| { | ||
| // try to clean up empty dirs. Ignore errors. | ||
| std::fs::remove_dir(component); | ||
| } | ||
| }) | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,45 @@ | ||
| use anyhow::Result; | ||
| use directories::{ProjectDirs, UserDirs}; | ||
| use lazy_static::lazy_static; | ||
| use std::path::PathBuf; | ||
|
|
||
| lazy_static! { | ||
| pub(crate) static ref BIN_ROOT: PathBuf = UserDirs::new() | ||
| .expect("cannot find home directory for user") | ||
| .home_dir() | ||
| .join(".krew-wasm") | ||
| .join("bin"); | ||
| pub(crate) static ref STORE_ROOT: PathBuf = ProjectDirs::from("io.krew-wasm", "", "krew-wasm") | ||
| .expect("cannot find project dirs") | ||
| .cache_dir() | ||
| .join("krew-wasm-store"); | ||
| pub(crate) static ref ALL_MODULES_STORE_ROOT: PathBuf = STORE_ROOT.join("all"); | ||
| } | ||
|
|
||
| // Given a module name, return a tuple with elements that can be | ||
| // unlinked directly in the first component of the tuple, and a second | ||
| // argument with the full path to the location in the store. In order | ||
| // to leave nothing behind in the store, we need to clean up every | ||
| // directory until the root of the store after unlinking the module | ||
| // from the store. | ||
| pub(crate) fn all_module_paths(module_name: &str) -> Result<(Vec<PathBuf>, PathBuf)> { | ||
| let module_bin = BIN_ROOT.join(format!("kubectl-{}", module_name)); | ||
| let module_root = ALL_MODULES_STORE_ROOT.join(module_name); | ||
| let module_path = std::fs::read_link(&module_root)?; | ||
| Ok((vec![module_bin, module_root], module_path)) | ||
| } | ||
|
|
||
| pub(crate) fn ensure() { | ||
| // Try to create the kubectl plugin bin path. | ||
| std::fs::create_dir_all(BIN_ROOT.as_path()).unwrap_or_else(|err| { | ||
| panic!( | ||
| "could not create alias binary root at {}: {}", | ||
| BIN_ROOT.display(), | ||
| err | ||
| ) | ||
| }); | ||
| // Try to create the "all modules" root on the store. Used | ||
| // to look for modules given a name. | ||
| std::fs::create_dir_all(ALL_MODULES_STORE_ROOT.as_path()) | ||
| .expect("could not create top level store path for all modules"); | ||
| } |