From 16924a64fa662d649590a0a26d7f280616651435 Mon Sep 17 00:00:00 2001
From: Fabio Valentini <decathorpe@gmail.com>
Date: Tue, 19 Sep 2023 22:02:24 +0200
Subject: [PATCH] build with vendored libgit2 unconditionally

---
 build.rs | 47 -----------------------------------------------
 1 file changed, 47 deletions(-)

diff --git a/build.rs b/build.rs
index b497005..4bf1136 100644
--- a/build.rs
+++ b/build.rs
@@ -4,56 +4,9 @@ use std::io;
 use std::path::{Path, PathBuf};
 use std::process::Command;
 
-/// Tries to use system libgit2 and emits necessary build script instructions.
-fn try_system_libgit2() -> Result<pkg_config::Library, pkg_config::Error> {
-    let mut cfg = pkg_config::Config::new();
-    match cfg.range_version("1.7.2".."1.8.0").probe("libgit2") {
-        Ok(lib) => {
-            for include in &lib.include_paths {
-                println!("cargo:root={}", include.display());
-            }
-            Ok(lib)
-        }
-        Err(e) => {
-            println!("cargo:warning=failed to probe system libgit2: {e}");
-            Err(e)
-        }
-    }
-}
-
 fn main() {
     let https = env::var("CARGO_FEATURE_HTTPS").is_ok();
     let ssh = env::var("CARGO_FEATURE_SSH").is_ok();
-    let vendored = env::var("CARGO_FEATURE_VENDORED").is_ok();
-    let zlib_ng_compat = env::var("CARGO_FEATURE_ZLIB_NG_COMPAT").is_ok();
-
-    // Specify `LIBGIT2_NO_VENDOR` to force to use system libgit2.
-    // Due to the additive nature of Cargo features, if some crate in the
-    // dependency graph activates `vendored` feature, there is no way to revert
-    // it back. This env var serves as a workaround for this purpose.
-    println!("cargo:rerun-if-env-changed=LIBGIT2_NO_VENDOR");
-    let forced_no_vendor = env::var_os("LIBGIT2_NO_VENDOR").map_or(false, |s| s != "0");
-
-    if forced_no_vendor {
-        if try_system_libgit2().is_err() {
-            panic!(
-                "\
-The environment variable `LIBGIT2_NO_VENDOR` has been set but no compatible system libgit2 could be found.
-The build is now aborting. To disable, unset the variable or use `LIBGIT2_NO_VENDOR=0`.
-",
-            );
-        }
-
-        // We've reached here, implying we're using system libgit2.
-        return;
-    }
-
-    // To use zlib-ng in zlib-compat mode, we have to build libgit2 ourselves.
-    let try_to_use_system_libgit2 = !vendored && !zlib_ng_compat;
-    if try_to_use_system_libgit2 && try_system_libgit2().is_ok() {
-        // using system libgit2 has worked
-        return;
-    }
 
     println!("cargo:rustc-cfg=libgit2_vendored");
 
-- 
2.41.0