Implement a new --extract-all feature

When this is passed, `ubi` will extract the entire archive instead of looking for just an
executable.

Changes.md

@@ -1,5 +1,9 @@
 ## 0.4.0
 
+- The `ubi` CLI tool now takes an optional `--extract-all` argument. If this is passed, it will only
+  look for archive files and it will extract the entire contents of an archive it finds. There is
+  also a new corresponding `UbiBuilder::extract_all` method. Requested by @Entze (Lukas Grassauer).
+  GH #68.
 - The `UbiBuilder::install_dir` method now takes `AsRef<Path>` instead of `PathBuf`, which should
   make it more convenient to use.
 - Previously, `ubi` would create the install directory very early in its process, well before it had

README.md

@@ -92,7 +92,17 @@ Options:
   -e, --exe <exe>                    The name of this project's executable. By default this is the
                                      same as the project name, so for houseabsolute/precious we look
                                      for precious or precious.exe. When running on Windows the
-                                     ".exe" suffix will be added as needed.
+                                     ".exe" suffix will be added as needed. You cannot pass
+                                     --extract-all when this is set
+      --extract-all                  Pass this to tell `ubi` to extract all files from the archive.
+                                     By default `ubi` will only extract an executable from an
+                                     archive file. But if this is true, it will simply unpack the
+                                     archive file in the specified directory. If all of the contents
+                                     of the archive file share a top-level directory, that directory
+                                     will be removed during unpacking. In other words, if an archive
+                                     contains `./project/some-file` and `./project/docs.md`, it will
+                                     extract them as `some-file` and `docs.md`. You cannot pass
+                                     --exe when this is set.
   -m, --matching <matching>          A string that will be matched against the release filename when
                                      there are multiple matching files for your OS/arch. For
                                      example, there may be multiple releases for an OS/arch that

ubi-cli/src/main.rs

@@ -57,6 +57,7 @@ async fn main() {
 
 const MAX_TERM_WIDTH: usize = 100;
 
+#[allow(clippy::too_many_lines)]
 fn cmd() -> Command {
     Command::new("ubi")
         .version(env!("CARGO_PKG_VERSION"))
@@ -98,8 +99,22 @@ fn cmd() -> Command {
             "The name of this project's executable. By default this is the same as the",
             " project name, so for houseabsolute/precious we look for precious or",
             r#" precious.exe. When running on Windows the ".exe" suffix will be added"#,
-            " as needed.",
+            " as needed. You cannot pass --extract-all when this is set.",
         )))
+        .arg(
+            Arg::new("extract-all")
+                .long("extract-all")
+                .action(ArgAction::SetTrue)
+                .help(concat!(
+                    // Pass this to tell `ubi` to extract all files from the archive. By default
+                    // `ubi` will only extract an executable from an archive file. But if this is
+                    // true, it will simply unpack the archive file. If all of the contents of
+                    // the archive file share a top-level directory, that directory will be removed
+                    // during unpacking. In other words, if an archive contains
+                    // `./project/some-file` and `./project/docs.md`, it will extract them as
+                    // `some-file` and `docs.md`. You cannot pass --exe when this is set.
+                )),
+        )
         .arg(
             Arg::new("matching")
                 .long("matching")
@@ -196,6 +211,9 @@ fn make_ubi<'a>(
     if let Some(e) = matches.get_one::<String>("exe") {
         builder = builder.exe(e);
     }
+    if matches.get_flag("extract-all") {
+        builder = builder.extract_all();
+    }
     if let Some(ft) = matches.get_one::<String>("forge") {
         builder = builder.forge(ForgeType::from_str(ft)?);
     }

ubi/src/builder.rs

@@ -3,7 +3,7 @@ use crate::{
     forge::{Forge, ForgeType},
     github::GitHub,
     gitlab::GitLab,
-    installer::Installer,
+    installer::{ArchiveInstaller, ExeInstaller, Installer},
     picker::AssetPicker,
     ubi::Ubi,
 };
@@ -32,6 +32,7 @@ pub struct UbiBuilder<'a> {
     install_dir: Option<PathBuf>,
     matching: Option<&'a str>,
     exe: Option<&'a str>,
+    extract_all: bool,
     github_token: Option<&'a str>,
     gitlab_token: Option<&'a str>,
     platform: Option<&'a Platform>,
@@ -100,12 +101,25 @@ impl<'a> UbiBuilder<'a> {
     /// Set the name of the executable to look for in archive files. By default this is the same as
     /// the project name, so for `houseabsolute/precious` we look for `precious` or
     /// `precious.exe`. When running on Windows the ".exe" suffix will be added as needed.
+    ///
+    /// You cannot call `extract_all` if you set this.
     #[must_use]
     pub fn exe(mut self, exe: &'a str) -> Self {
         self.exe = Some(exe);
         self
     }
 
+    /// Call this to tell `ubi` to extract all files from the archive. By default `ubi` will look
+    /// for an executable in an archive file. But if this is true, it will simply unpack the archive
+    /// file in the specified directory.
+    ///
+    /// You cannot set `exe` when this is true.
+    #[must_use]
+    pub fn extract_all(mut self) -> Self {
+        self.extract_all = true;
+        self
+    }
+
     /// Set a GitHub token to use for API requests. If this is not set then this will be taken from
     /// the `GITHUB_TOKEN` env var if it is set.
     #[must_use]
@@ -175,6 +189,9 @@ impl<'a> UbiBuilder<'a> {
         if self.url.is_some() && (self.project.is_some() || self.tag.is_some()) {
             return Err(anyhow!("You cannot set a url with a project or tag"));
         }
+        if self.exe.is_some() && self.extract_all {
+            return Err(anyhow!("You cannot set exe and extract_all"));
+        }
 
         let platform = self.determine_platform()?;
 
@@ -183,20 +200,37 @@ impl<'a> UbiBuilder<'a> {
         let asset_url = self.url.map(Url::parse).transpose()?;
         let (project_name, forge_type) =
             parse_project_name(self.project, asset_url.as_ref(), self.forge.clone())?;
-        let exe = exe_name(self.exe, &project_name, &platform);
+        let installer = self.new_installer(&project_name, &platform)?;
         let forge = self.new_forge(project_name, &forge_type)?;
-        let install_path = install_path(self.install_dir, &exe)?;
         let is_musl = self.is_musl.unwrap_or_else(|| platform_is_musl(&platform));
 
         Ok(Ubi::new(
             forge,
             asset_url,
-            AssetPicker::new(self.matching, platform, is_musl),
-            Installer::new(install_path, exe),
+            AssetPicker::new(self.matching, platform, is_musl, self.extract_all),
+            installer,
             reqwest_client()?,
         ))
     }
 
+    fn new_installer(&self, project_name: &str, platform: &Platform) -> Result<Box<dyn Installer>> {
+        let (install_path, exe) = if self.extract_all {
+            (install_path(self.install_dir.as_deref(), None)?, None)
+        } else {
+            let exe = exe_name(self.exe, project_name, platform);
+            (
+                install_path(self.install_dir.as_deref(), Some(&exe))?,
+                Some(exe),
+            )
+        };
+
+        Ok(if self.extract_all {
+            Box::new(ArchiveInstaller::new(install_path))
+        } else {
+            Box::new(ExeInstaller::new(install_path, exe.unwrap()))
+        })
+    }
+
     fn new_forge(
         &self,
         project_name: String,
@@ -283,17 +317,19 @@ fn parse_project_name(
     ))
 }
 
-fn install_path(install_dir: Option<PathBuf>, exe: &str) -> Result<PathBuf> {
-    let mut path = if let Some(i) = install_dir {
-        i
+fn install_path(install_dir: Option<&Path>, exe: Option<&str>) -> Result<PathBuf> {
+    let mut install_dir = if let Some(install_dir) = install_dir {
+        install_dir.to_path_buf()
     } else {
-        let mut i = env::current_dir()?;
-        i.push("bin");
-        i
+        let mut install_dir = env::current_dir()?;
+        install_dir.push("bin");
+        install_dir
     };
-    path.push(exe);
-    debug!("install path = {}", path.to_string_lossy());
-    Ok(path)
+    if let Some(exe) = exe {
+        install_dir.push(exe);
+    }
+    debug!("install path = {}", install_dir.to_string_lossy());
+    Ok(install_dir)
 }
 
 fn exe_name(exe: Option<&str>, project_name: &str, platform: &Platform) -> String {
@@ -303,12 +339,13 @@ fn exe_name(exe: Option<&str>, project_name: &str, platform: &Platform) -> Strin
             _ => e.to_string(),
         }
     } else {
-        let parts = project_name.split('/').collect::<Vec<&str>>();
-        let e = parts[parts.len() - 1].to_string();
+        // We know that this contains a slash because it already went through `parse_project_name`
+        // successfully.
+        let e = project_name.split('/').last().unwrap();
         if matches!(platform.target_os, OS::Windows) {
             format!("{e}.exe")
         } else {
-            e
+            e.to_string()
         }
     };
     debug!("exe name = {name}");

ubi/src/extension.rs

@@ -53,6 +53,23 @@ impl Extension {
         }
     }
 
+    pub(crate) fn is_archive(&self) -> bool {
+        match self {
+            Extension::Bz | Extension::Bz2 | Extension::Exe | Extension::Gz | Extension::Xz => {
+                false
+            }
+            Extension::Tar
+            | Extension::TarBz
+            | Extension::TarBz2
+            | Extension::TarGz
+            | Extension::TarXz
+            | Extension::Tbz
+            | Extension::Tgz
+            | Extension::Txz
+            | Extension::Zip => true,
+        }
+    }
+
     pub(crate) fn from_path<S: AsRef<str>>(path: S) -> Result<Option<Extension>> {
         let path = path.as_ref();
         let Some(ext_str) = Path::new(path).extension() else {
@@ -146,6 +163,8 @@ mod test {
     #[test_case("i386-linux-ghcup-0.1.30.0-linux_amd64", Ok(None))]
     #[test_case("foo.bar", Err(ExtensionError::UnknownExtension { path: "foo.bar".to_string(), ext: "bar".to_string() }.into()))]
     fn from_path(path: &str, expect: Result<Option<Extension>>) {
+        crate::test_case::init_logging();
+
         let ext = Extension::from_path(path);
         if expect.is_ok() {
             assert!(ext.is_ok());