Allow to build without pulling git-version and concat_const

Cargo.toml

@@ -35,13 +35,11 @@ bitflags = "2"
 bzip2 = "0.4"
 byteorder = "1"
 cfg-if = "1"
-concat_const = "0.1"
 cstr = "0.2.10"
 derivative = "2"
 digest = "0.10"
 either = "1"
 getset = "0.1"
-git-version = "0.3"
 hex = "0.4"
 hex-literal = "0.4"
 indexmap = "2"
@@ -66,6 +64,10 @@ features = ["std"]
 version = "4.2"
 features = ["cargo", "derive"]
 
+[dependencies.concat_const]
+version = "0.1"
+optional = true
+
 [target.'cfg(windows)'.dependencies.curl-sys]
 version = "0.4"
 default-features = false
@@ -85,6 +87,10 @@ version = "1"
 default-features = false
 features = ["zlib"]
 
+[dependencies.git-version]
+version = "0.3"
+optional = true
+
 [target.'cfg(windows)'.dependencies.libz-sys]
 version = "1"
 features = ["static"]
@@ -153,13 +159,14 @@ panic = "abort"
 panic = "abort"
 
 [features]
-default = ["version-check"]
+default = ["full-version", "version-check"]
+full-version = ["dep:concat_const", "dep:git-version"]
 # libcurl.so compatibility (Linux only).
 curl-compat = ["rustflags"]
 # Check and report when a new version is available.
 version-check = ["shared_child"]
 # Download and apply new versions.
-self-update = ["shared_child", "dep:tar", "dep:xz2", "dep:zip", "windows-sys/Win32_System_Threading"]
+self-update = ["shared_child", "dep:concat_const", "dep:tar", "dep:xz2", "dep:zip", "windows-sys/Win32_System_Threading"]
 
 # Development features
 

src/version.rs

@@ -171,31 +171,42 @@ macro_rules! full_version {
 mod static_ {
     use clap::crate_version;
     // Work around https://github.com/rust-lang/rust-analyzer/issues/8828 with `as cat`.
+    #[cfg(feature = "full-version")]
     use concat_const::concat as cat;
+    #[cfg(feature = "full-version")]
     use git_version::git_version;
 
     #[cfg(any(feature = "version-check", feature = "self-update"))]
     use super::BuildBranch;
 
     pub const SHORT_VERSION: &str = crate_version!();
+    #[cfg(feature = "full-version")]
     const GIT_VERSION: &str = git_version!(
         args = ["--always", "--match=nothing/", "--abbrev=40", "--dirty=m"],
         fallback = "",
     );
+    #[cfg(feature = "full-version")]
     pub const MODIFIED: bool = matches!(GIT_VERSION.as_bytes().last(), Some(b'm'));
+    #[cfg(not(feature = "full-version"))]
+    pub const MODIFIED: bool = false;
+    #[cfg(feature = "full-version")]
     pub const BUILD_COMMIT: &str = unsafe {
         // Subslicing is not supported in const yet.
         std::str::from_utf8_unchecked(std::slice::from_raw_parts(
             GIT_VERSION.as_ptr(),
             GIT_VERSION.len() - if MODIFIED { 1 } else { 0 },
         ))
     };
+    #[cfg(not(feature = "full-version"))]
+    pub const BUILD_COMMIT: &str = "";
 
     #[cfg(any(feature = "version-check", feature = "self-update"))]
     pub const BUILD_BRANCH: BuildBranch = BuildBranch::from_version(SHORT_VERSION);
 
-    //    #[allow(clippy::const_is_empty)]
+    #[cfg(feature = "full-version")]
     pub const FULL_VERSION: &str = full_version!(SHORT_VERSION, BUILD_COMMIT, MODIFIED, cat);
+    #[cfg(not(feature = "full-version"))]
+    pub const FULL_VERSION: &str = SHORT_VERSION;
 }
 
 fn value<'a, T: 'a + ConfigType + ?Sized, F: FnOnce(T::Owned) -> Option<T::Owned>>(