Reapply "rust: rebuild with itself (#5574)"

This reverts commit 3852bfa99e.

now it's the time

rust/PKGBUILD

@@ -7,7 +7,7 @@ rust_dist_server=https://static.rust-lang.org/dist
 
 pkgname=rust
 pkgver=1.89.0
-pkgrel=1
+pkgrel=2
 pkgdesc="Systems programming language focused on safety, speed and concurrency"
 arch=('x86_64')
 url="https://www.rust-lang.org/"
@@ -32,37 +32,22 @@ makedepends=('gcc'
              'libzstd-devel'
              'zlib-devel'
              'libcurl-devel'
-             # TODO: rebuild with our Rust
-             #$([[ "$_bootstrapping" == "no" ]] && echo 'rust')
-)
+             $([[ "$_bootstrapping" == "no" ]] && echo 'rust'))
 source=("${rust_dist_server}/${pkgname}c-${pkgver}-src.tar.gz"{,.asc}
         "bootstrap.toml")
 noextract=(${pkgname}c-${pkgver}-src.tar.gz)
 sha256sums=('2576f9f440dd99b0151bd28f59aa0ac6102d5c4f3ed4ef8a810c8dd05057250d'
             'SKIP'
-            '66de9b211c5b5e4d211909ba127a57ed3fbf6b78dbaff266cbbb9e025ce72a3d')
+            'b6e07703a723efa0e59ef2dac0fae62473d14d67afab606a514a9555ab45b56e')
 validpgpkeys=('108F66205EAEB0AAA8DD5E1C85AB96E6FA1BE5FE'  # Rust Language (Tag and Release Signing Key) <rust-key@rust-lang.org>
               '474E22316ABF4785A88C6E8EA2C794A986419D8A'  # Tom Stellard <tstellar@redhat.com>
               'B6C8F98282B944E3B0D5C2530FC3042E345AD05D') # Hans Wennborg <hans@chromium.org>
-# temporarily download stage0
-if [[ ${_bootstrapping} == "no" ]]; then
-  _stage0_source="https://github.com/jeremyd2019/cygwin-rust-bootstrap/releases/download/rust-1.89.0-msys2"
-  source+=("${_stage0_source}/rust-1.89.0-x86_64-pc-cygwin.tar.xz")
-  sha256sums+=('448203e01a5bbe18e7f813dd5c029808ae4799330ef50d0791c94eb5a0220891')
-fi
 
 prepare() {
   # workaround strange symlinking error during a build
   export MSYS=winsymlinks:nativestrict
   plain "Extracting ${pkgname}c-${pkgver}-src.tar.gz"
   tar -xzf ${pkgname}c-${pkgver}-src.tar.gz || true
-
-  # copy binaries and library into a single location
-  if [[ ${_bootstrapping} == "no" ]]; then
-    mkdir -p stage0/{bin,lib}
-    cp -r rust-1.89.0-x86_64-pc-cygwin/{rustc,cargo,rustfmt-preview}/bin/* stage0/bin
-    cp -r rust-1.89.0-x86_64-pc-cygwin/{rustc,rust-std-x86_64-pc-cygwin}/lib/* stage0/lib
-  fi
 }
 
 build() {
@@ -73,9 +58,7 @@ build() {
 
   cd "${pkgname}c-${pkgver}-src"
   # substitute the values in bootstrap.toml
-  #export USR="/usr"
   export PKGREL="${pkgrel}"
-  export SRCDIR="${srcdir}"
   envsubst < ../bootstrap.toml > bootstrap.toml
 
   if [ "${_bootstrapping}" = "no" ]; then

rust/bootstrap.toml

@@ -8,9 +8,9 @@ change-id = 142379
 link-shared = true
 
 [build]
-#cargo = "$SRCDIR/stage0/bin/cargo"
-#rustc = "$SRCDIR/stage0/bin/rustc"
-#rustfmt = "$SRCDIR/stage0/bin/rustfmt"
+#cargo = "/usr/bin/cargo"
+#rustc = "/usr/bin/rustc"
+#rustfmt = "/usr/bin/rustfmt"
 description = "Rev$PKGREL, Built by MSYS2 project"
 submodules = false
 build = "x86_64-pc-cygwin"