dev-lang/rust: update patch from pr65932

Signed-off-by: Steffen Kuhn <nielson2@yandex.com>
Closes: https://github.com/gentoo/gentoo-rust/pull/466
Signed-off-by: Mikhail Pukhlikov <cynede@gentoo.org>

1 files changed, 111 insertions, 56 deletions

diff --git a/dev-lang/rust/files/pr65932.patch b/dev-lang/rust/files/pr65932.patch
index b383e34..8a7a5b3 100644
--- a/dev-lang/rust/files/pr65932.patch
+++ b/dev-lang/rust/files/pr65932.patch
@@ -1,14 +1,14 @@
-From f59c3fdc0906d2af60b52e9d5782f2e3cf39ad03 Mon Sep 17 00:00:00 2001
+From 8d56bcc59c92c5770f585cd433230e7771da2dad Mon Sep 17 00:00:00 2001
 From: Guanqun Lu <guanqun.lu@gmail.com>
 Date: Tue, 29 Oct 2019 16:48:05 +0800
-Subject: [PATCH 1/3] download .tar.xz if python3 is used
+Subject: [PATCH 1/2] download .tar.xz if python3 is used
 
 ---
- src/bootstrap/bootstrap.py | 21 ++++++++++++---------
- 1 file changed, 12 insertions(+), 9 deletions(-)
+ src/bootstrap/bootstrap.py | 32 +++++++++++++++++++++++---------
+ 1 file changed, 23 insertions(+), 9 deletions(-)
 
 diff --git a/src/bootstrap/bootstrap.py b/src/bootstrap/bootstrap.py
-index 4caf36a6f2a5..efde8bd6ce10 100644
+index 4caf36a6f2a5..9cc58e03d564 100644
 --- a/src/bootstrap/bootstrap.py
 +++ b/src/bootstrap/bootstrap.py
 @@ -102,10 +102,10 @@ def verify(path, sha_path, verbose):
@@ -24,15 +24,26 @@ index 4caf36a6f2a5..efde8bd6ce10 100644
      with contextlib.closing(tarfile.open(tarball)) as tar:
          for member in tar.getnames():
              if "/" not in member:
-@@ -329,6 +329,7 @@ def __init__(self):
-         self.rust_root = ''
-         self.use_locked_deps = ''
+@@ -331,6 +331,18 @@ def __init__(self):
          self.use_vendored_sources = ''
-+        self.tarball_suffix = '.tar.gz' if sys.version_info[0] == 2 else '.tar.xz'
          self.verbose = False
  
++        def support_xz():
++            try:
++                with tempfile.NamedTemporaryFile(delete=False) as temp_file:
++                    temp_path = temp_file.name
++                with tarfile.open(temp_path, "w:xz") as tar:
++                    pass
++                return True
++            except tarfile.CompressionError:
++                return False
++
++        self.tarball_suffix = '.tar.xz' if support_xz() else '.tar.gz'
++
      def download_stage0(self):
-@@ -349,12 +350,13 @@ def download_stage0(self):
+         """Fetch the build system for Rust, written in Rust
+ 
+@@ -349,12 +361,13 @@ def download_stage0(self):
                   self.program_out_of_date(self.rustc_stamp())):
              if os.path.exists(self.bin_root()):
                  shutil.rmtree(self.bin_root())
@@ -49,7 +60,7 @@ index 4caf36a6f2a5..efde8bd6ce10 100644
              self._download_stage0_helper(filename, "rustc")
              self.fix_executable("{}/bin/rustc".format(self.bin_root()))
              self.fix_executable("{}/bin/rustdoc".format(self.bin_root()))
-@@ -365,14 +367,15 @@ def download_stage0(self):
+@@ -365,14 +378,15 @@ def download_stage0(self):
              # libraries/binaries that are included in rust-std with
              # the system MinGW ones.
              if "pc-windows-gnu" in self.build:
@@ -68,7 +79,7 @@ index 4caf36a6f2a5..efde8bd6ce10 100644
              self._download_stage0_helper(filename, "cargo")
              self.fix_executable("{}/bin/cargo".format(self.bin_root()))
              with output(self.cargo_stamp()) as cargo_stamp:
-@@ -388,7 +391,7 @@ def _download_stage0_helper(self, filename, pattern):
+@@ -388,7 +402,7 @@ def _download_stage0_helper(self, filename, pattern):
          tarball = os.path.join(rustc_cache, filename)
          if not os.path.exists(tarball):
              get("{}/{}".format(url, filename), tarball, verbose=self.verbose)
@@ -78,62 +89,106 @@ index 4caf36a6f2a5..efde8bd6ce10 100644
      @staticmethod
      def fix_executable(fname):
 
-From afd1a575fc561c60dc640ebc4b4bbb0ffe2f127e Mon Sep 17 00:00:00 2001
+From 0019371e3d878c1031bd7395b52ab40f2441049c Mon Sep 17 00:00:00 2001
 From: Guanqun Lu <guanqun.lu@gmail.com>
-Date: Wed, 30 Oct 2019 23:01:46 +0800
-Subject: [PATCH 2/3] python3 only has lzma support after 3.3
+Date: Tue, 12 Nov 2019 00:16:05 +0800
+Subject: [PATCH 2/2] bootstrap: don't call support_xz in hot-path
 
 ---
- src/bootstrap/bootstrap.py | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
+ src/bootstrap/bootstrap.py | 43 +++++++++++++++++++-------------------
+ 1 file changed, 22 insertions(+), 21 deletions(-)
 
 diff --git a/src/bootstrap/bootstrap.py b/src/bootstrap/bootstrap.py
-index efde8bd6ce10..06c439082c76 100644
+index 9cc58e03d564..730e8cf05d41 100644
 --- a/src/bootstrap/bootstrap.py
 +++ b/src/bootstrap/bootstrap.py
-@@ -329,7 +329,7 @@ def __init__(self):
-         self.rust_root = ''
-         self.use_locked_deps = ''
+@@ -331,17 +331,6 @@ def __init__(self):
          self.use_vendored_sources = ''
--        self.tarball_suffix = '.tar.gz' if sys.version_info[0] == 2 else '.tar.xz'
-+        self.tarball_suffix = '.tar.xz' if sys.version_info[0:2] >= (3, 3) else '.tar.gz'
          self.verbose = False
  
+-        def support_xz():
+-            try:
+-                with tempfile.NamedTemporaryFile(delete=False) as temp_file:
+-                    temp_path = temp_file.name
+-                with tarfile.open(temp_path, "w:xz") as tar:
+-                    pass
+-                return True
+-            except tarfile.CompressionError:
+-                return False
+-
+-        self.tarball_suffix = '.tar.xz' if support_xz() else '.tar.gz'
+ 
      def download_stage0(self):
-
-From bbb5ac2ff22de6d8021aa200270af2cdc92e4d0d Mon Sep 17 00:00:00 2001
-From: Guanqun Lu <guanqun.lu@gmail.com>
-Date: Thu, 31 Oct 2019 12:13:51 +0800
-Subject: [PATCH 3/3] try import lzma to detect if xz is supported
-
----
- src/bootstrap/bootstrap.py | 8 +++++++-
- 1 file changed, 7 insertions(+), 1 deletion(-)
-
-diff --git a/src/bootstrap/bootstrap.py b/src/bootstrap/bootstrap.py
-index 06c439082c76..a192e3a1cc00 100644
---- a/src/bootstrap/bootstrap.py
-+++ b/src/bootstrap/bootstrap.py
-@@ -314,6 +314,12 @@ def output(filepath):
-         shutil.copy2(tmp, filepath)
-         os.remove(tmp)
+         """Fetch the build system for Rust, written in Rust
+@@ -356,19 +345,30 @@ def download_stage0(self):
+         rustc_channel = self.rustc_channel
+         cargo_channel = self.cargo_channel
  
-+def supports_lzma():
-+    try:
-+        import lzma
-+        return True
-+    except ImportError:
-+        return False
++        def support_xz():
++            try:
++                with tempfile.NamedTemporaryFile(delete=False) as temp_file:
++                    temp_path = temp_file.name
++                with tarfile.open(temp_path, "w:xz") as tar:
++                    pass
++                return True
++            except tarfile.CompressionError:
++                return False
++
+         if self.rustc().startswith(self.bin_root()) and \
+                 (not os.path.exists(self.rustc()) or
+                  self.program_out_of_date(self.rustc_stamp())):
+             if os.path.exists(self.bin_root()):
+                 shutil.rmtree(self.bin_root())
++            tarball_suffix = '.tar.xz' if support_xz() else '.tar.gz'
+             filename = "rust-std-{}-{}{}".format(
+-                rustc_channel, self.build, self.tarball_suffix)
++                rustc_channel, self.build, tarball_suffix)
+             pattern = "rust-std-{}".format(self.build)
+-            self._download_stage0_helper(filename, pattern)
++            self._download_stage0_helper(filename, pattern, tarball_suffix)
  
- class RustBuild(object):
-     """Provide all the methods required to build Rust"""
-@@ -329,7 +335,7 @@ def __init__(self):
-         self.rust_root = ''
-         self.use_locked_deps = ''
-         self.use_vendored_sources = ''
--        self.tarball_suffix = '.tar.xz' if sys.version_info[0:2] >= (3, 3) else '.tar.gz'
-+        self.tarball_suffix = '.tar.xz' if supports_lzma() else '.tar.gz'
-         self.verbose = False
+             filename = "rustc-{}-{}{}".format(rustc_channel, self.build,
+-                                              self.tarball_suffix)
+-            self._download_stage0_helper(filename, "rustc")
++                                              tarball_suffix)
++            self._download_stage0_helper(filename, "rustc", tarball_suffix)
+             self.fix_executable("{}/bin/rustc".format(self.bin_root()))
+             self.fix_executable("{}/bin/rustdoc".format(self.bin_root()))
+             with output(self.rustc_stamp()) as rust_stamp:
+@@ -379,20 +379,21 @@ def download_stage0(self):
+             # the system MinGW ones.
+             if "pc-windows-gnu" in self.build:
+                 filename = "rust-mingw-{}-{}{}".format(
+-                    rustc_channel, self.build, self.tarball_suffix)
+-                self._download_stage0_helper(filename, "rust-mingw")
++                    rustc_channel, self.build, tarball_suffix)
++                self._download_stage0_helper(filename, "rust-mingw", tarball_suffix)
  
-     def download_stage0(self):
+         if self.cargo().startswith(self.bin_root()) and \
+                 (not os.path.exists(self.cargo()) or
+                  self.program_out_of_date(self.cargo_stamp())):
++            tarball_suffix = '.tar.xz' if support_xz() else '.tar.gz'
+             filename = "cargo-{}-{}{}".format(cargo_channel, self.build,
+-                                              self.tarball_suffix)
+-            self._download_stage0_helper(filename, "cargo")
++                                              tarball_suffix)
++            self._download_stage0_helper(filename, "cargo", tarball_suffix)
+             self.fix_executable("{}/bin/cargo".format(self.bin_root()))
+             with output(self.cargo_stamp()) as cargo_stamp:
+                 cargo_stamp.write(self.date)
+ 
+-    def _download_stage0_helper(self, filename, pattern):
++    def _download_stage0_helper(self, filename, pattern, tarball_suffix):
+         cache_dst = os.path.join(self.build_dir, "cache")
+         rustc_cache = os.path.join(cache_dst, self.date)
+         if not os.path.exists(rustc_cache):
+@@ -402,7 +403,7 @@ def _download_stage0_helper(self, filename, pattern):
+         tarball = os.path.join(rustc_cache, filename)
+         if not os.path.exists(tarball):
+             get("{}/{}".format(url, filename), tarball, verbose=self.verbose)
+-        unpack(tarball, self.tarball_suffix, self.bin_root(), match=pattern, verbose=self.verbose)
++        unpack(tarball, tarball_suffix, self.bin_root(), match=pattern, verbose=self.verbose)
+ 
+     @staticmethod
+     def fix_executable(fname):