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mk: Bootstrap from stable instead of snapshots
This commit removes all infrastructure from the repository for our so-called snapshots to instead bootstrap the compiler from stable releases. Bootstrapping from a previously stable release is a long-desired feature of distros because they're not fans of downloading binary stage0 blobs from us. Additionally, this makes our own CI easier as we can decommission all of the snapshot builders and start having a regular cadence to when we update the stage0 compiler. A new `src/etc/get-stage0.py` script was added which shares some code with `src/bootstrap/bootstrap.py` to read a new file, `src/stage0.txt`, which lists the current stage0 compiler as well as cargo that we bootstrap from. This script will download the relevant `rustc` package an unpack it into `$target/stage0` as we do today. One problem of bootstrapping from stable releases is that we're not able to compile unstable code (e.g. all the `#![feature]` directives in libcore/libstd). To overcome this we employ two strategies: * The bootstrap key of the previous compiler is hardcoded into `src/stage0.txt` (enabled as a result of #32731) and exported by the build system. This enables nightly features in the compiler we download. * The standard library and compiler are pinned to a specific stage0, which doesn't change, so we're guaranteed that we'll continue compiling as we start from a known fixed source. The process for making a release will also need to be tweaked now to continue to cadence of bootstrapping from the previous release. This process looks like: 1. Merge `beta` to `stable` 2. Produce a new stable compiler. 3. Change `master` to bootstrap from this new stable compiler. 4. Merge `master` to `beta` 5. Produce a new beta compiler 6. Change `master` to bootstrap from this new beta compiler. Step 3 above should involve very few changes as `master` was previously bootstrapping from `beta` which is the same as `stable` at that point in time. Step 6, however, is where we benefit from removing lots of `#[cfg(stage0)]` and get to use new features. This also shouldn't slow the release too much as steps 1-5 requires little work other than waiting and step 6 just needs to happen at some point during a release cycle, it's not time sensitive. Closes #29555 Closes #29557
This commit is contained in:
Alex Crichton
parent
478a33dabc
commit
02538d463a
@ -214,13 +214,6 @@ include $(CFG_SRC_DIR)mk/debuggers.mk
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# Secondary makefiles, conditionalized for speed
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######################################################################
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# Binary snapshots
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ifneq ($(strip $(findstring snap,$(MAKECMDGOALS)) \
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$(findstring clean,$(MAKECMDGOALS))),)
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CFG_INFO := $(info cfg: including snap rules)
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include $(CFG_SRC_DIR)mk/snap.mk
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endif
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# The test suite
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ifneq ($(strip $(findstring check,$(MAKECMDGOALS)) \
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$(findstring test,$(MAKECMDGOALS)) \
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@ -61,7 +61,7 @@ PKG_FILES := \
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rtstartup \
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rustllvm \
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rustc \
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snapshots.txt \
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stage0.txt \
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rust-installer \
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tools \
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test) \
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@ -34,6 +34,7 @@ CFG_FILENAME_EXTRA=$(shell printf '%s' $(CFG_RELEASE)$(CFG_EXTRA_FILENAME) | $(C
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# intentionally not "secure" by any definition, this is largely just a deterrent
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# from users enabling unstable features on the stable compiler.
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CFG_BOOTSTRAP_KEY=$(CFG_FILENAME_EXTRA)
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CFG_BOOTSTRAP_KEY_STAGE0=$(shell grep 'rustc_key' $(S)src/stage0.txt | sed 's/rustc_key: '//)
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ifeq ($(CFG_RELEASE_CHANNEL),stable)
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# This is the normal semver version string, e.g. "0.12.0", "0.12.0-nightly"
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@ -38,6 +38,6 @@ else
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SREL_ROOT := $(SREL)
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endif
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config.stamp: $(S)configure $(S)Makefile.in $(S)src/snapshots.txt
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config.stamp: $(S)configure $(S)Makefile.in $(S)src/stage0.txt
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@$(call E, cfg: reconfiguring)
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$(SREL_ROOT)configure $(CFG_CONFIGURE_ARGS)
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28
mk/snap.mk
28
mk/snap.mk
@ -1,28 +0,0 @@
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# Copyright 2012 The Rust Project Developers. See the COPYRIGHT
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# file at the top-level directory of this distribution and at
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# http://rust-lang.org/COPYRIGHT.
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#
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# Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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# http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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# <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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# option. This file may not be copied, modified, or distributed
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# except according to those terms.
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define DEF_SNAP_FOR_STAGE_H
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# $(1) stage
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# $(2) triple
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snap-stage$(1)-H-$(2): $$(HSREQ$(1)_H_$(2))
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$(CFG_PYTHON) $(S)src/etc/make-snapshot.py stage$(1) $(2)
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endef
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$(foreach host,$(CFG_HOST), \
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$(foreach stage,1 2 3, \
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$(eval $(call DEF_SNAP_FOR_STAGE_H,$(stage),$(host)))))
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snap-stage1: snap-stage1-H-$(CFG_BUILD)
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snap-stage2: snap-stage2-H-$(CFG_BUILD)
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snap-stage3: snap-stage3-H-$(CFG_BUILD)
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@ -10,17 +10,14 @@ $(HLIB0_H_$(CFG_BUILD))/:
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endif
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$(SNAPSHOT_RUSTC_POST_CLEANUP): \
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$(S)src/snapshots.txt \
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$(S)src/etc/get-snapshot.py $(MKFILE_DEPS) \
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$(S)src/stage0.txt \
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$(S)src/etc/get-stage0.py $(MKFILE_DEPS) \
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| $(HBIN0_H_$(CFG_BUILD))/
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@$(call E, fetch: $@)
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# Note: the variable "SNAPSHOT_FILE" is generally not set, and so
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# we generally only pass one argument to this script.
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ifdef CFG_ENABLE_LOCAL_RUST
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$(Q)$(S)src/etc/local_stage0.sh $(CFG_BUILD) $(CFG_LOCAL_RUST_ROOT) rustlib
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else
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$(Q)$(CFG_PYTHON) $(S)src/etc/get-snapshot.py $(CFG_BUILD) $(SNAPSHOT_FILE)
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$(Q)$(CFG_PYTHON) $(S)src/etc/get-stage0.py $(CFG_BUILD)
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endif
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$(Q)if [ -e "$@" ]; then touch "$@"; else echo "ERROR: snapshot $@ not found"; exit 1; fi
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18
mk/target.mk
18
mk/target.mk
@ -65,6 +65,11 @@ $(foreach host,$(CFG_HOST), \
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# $(4) is the crate name
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define RUST_TARGET_STAGE_N
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ifeq ($(1),0)
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$$(TLIB$(1)_T_$(2)_H_$(3))/stamp.$(4): \
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export RUSTC_BOOTSTRAP_KEY := $$(CFG_BOOTSTRAP_KEY_STAGE0)
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endif
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$$(TLIB$(1)_T_$(2)_H_$(3))/stamp.$(4): CFG_COMPILER_HOST_TRIPLE = $(2)
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$$(TLIB$(1)_T_$(2)_H_$(3))/stamp.$(4): \
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$$(CRATEFILE_$(4)) \
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@ -113,6 +118,11 @@ endef
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# $(4) - name of the tool being built
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define TARGET_TOOL
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ifeq ($(1),0)
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$$(TBIN$(1)_T_$(2)_H_$(3))/$(4)$$(X_$(2)): \
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export RUSTC_BOOTSTRAP_KEY := $$(CFG_BOOTSTRAP_KEY_STAGE0)
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endif
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$$(TBIN$(1)_T_$(2)_H_$(3))/$(4)$$(X_$(2)): \
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$$(TOOL_SOURCE_$(4)) \
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$$(TOOL_INPUTS_$(4)) \
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@ -167,11 +177,15 @@ SNAPSHOT_RUSTC_POST_CLEANUP=$(HBIN0_H_$(CFG_BUILD))/rustc$(X_$(CFG_BUILD))
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define TARGET_HOST_RULES
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$$(TLIB$(1)_T_$(2)_H_$(3))/:
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$$(TLIB$(1)_T_$(2)_H_$(3))/: $$(SNAPSHOT_RUSTC_POST_CLEANUP)
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mkdir -p $$@
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$$(TBIN$(1)_T_$(2)_H_$(3))/: $$(SNAPSHOT_RUSTC_POST_CLEANUP)
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mkdir -p $$@
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$$(TLIB$(1)_T_$(2)_H_$(3))/%: $$(RT_OUTPUT_DIR_$(2))/% \
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| $$(TLIB$(1)_T_$(2)_H_$(3))/ $$(SNAPSHOT_RUSTC_POST_CLEANUP)
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$$(SNAPSHOT_RUSTC_POST_CLEANUP) \
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| $$(TLIB$(1)_T_$(2)_H_$(3))/
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@$$(call E, cp: $$@)
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$$(Q)cp $$< $$@
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endef
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@ -241,13 +241,16 @@ cleantestlibs:
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######################################################################
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.PHONY: tidy
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tidy: $(HBIN0_H_$(CFG_BUILD))/tidy$(X_$(CFG_BUILD))
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tidy: $(HBIN0_H_$(CFG_BUILD))/tidy$(X_$(CFG_BUILD)) \
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$(SNAPSHOT_RUSTC_POST_CLEANUP)
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$(TARGET_RPATH_VAR0_T_$(CFG_BUILD)_H_$(CFG_BUILD)) $< $(S)src
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$(HBIN0_H_$(CFG_BUILD))/tidy$(X_$(CFG_BUILD)): \
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$(TSREQ0_T_$(CFG_BUILD)_H_$(CFG_BUILD)) \
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$(TLIB0_T_$(CFG_BUILD)_H_$(CFG_BUILD))/stamp.std \
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$(call rwildcard,$(S)src/tools/tidy/src,*.rs)
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$(call rwildcard,$(S)src/tools/tidy/src,*.rs) \
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$(SNAPSHOT_RUSTC_POST_CLEANUP) | \
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$(TLIB0_T_$(CFG_BUILD)_H_$(CFG_BUILD))
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$(STAGE0_T_$(CFG_BUILD)_H_$(CFG_BUILD)) $(S)src/tools/tidy/src/main.rs \
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--out-dir $(@D) --crate-name tidy
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@ -79,11 +79,22 @@ def run(args, verbose=False):
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raise RuntimeError(err)
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sys.exit(err)
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def stage0_data(rust_root):
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nightlies = os.path.join(rust_root, "src/stage0.txt")
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with open(nightlies, 'r') as nightlies:
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data = {}
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for line in nightlies.read().split("\n"):
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if line.startswith("#") or line == '':
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continue
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a, b = line.split(": ", 1)
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data[a] = b
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return data
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class RustBuild:
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def download_rust_nightly(self):
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def download_stage0(self):
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cache_dst = os.path.join(self.build_dir, "cache")
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rustc_cache = os.path.join(cache_dst, self.snap_rustc_date())
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cargo_cache = os.path.join(cache_dst, self.snap_cargo_date())
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rustc_cache = os.path.join(cache_dst, self.stage0_rustc_date())
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cargo_cache = os.path.join(cache_dst, self.stage0_cargo_date())
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if not os.path.exists(rustc_cache):
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os.makedirs(rustc_cache)
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if not os.path.exists(cargo_cache):
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@ -93,8 +104,9 @@ class RustBuild:
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(not os.path.exists(self.rustc()) or self.rustc_out_of_date()):
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if os.path.exists(self.bin_root()):
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shutil.rmtree(self.bin_root())
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filename = "rust-std-nightly-" + self.build + ".tar.gz"
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url = "https://static.rust-lang.org/dist/" + self.snap_rustc_date()
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channel = self.stage0_rustc_channel()
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filename = "rust-std-" + channel + "-" + self.build + ".tar.gz"
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url = "https://static.rust-lang.org/dist/" + self.stage0_rustc_date()
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tarball = os.path.join(rustc_cache, filename)
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if not os.path.exists(tarball):
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get(url + "/" + filename, tarball, verbose=self.verbose)
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@ -102,32 +114,39 @@ class RustBuild:
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match="rust-std-" + self.build,
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verbose=self.verbose)
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filename = "rustc-nightly-" + self.build + ".tar.gz"
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url = "https://static.rust-lang.org/dist/" + self.snap_rustc_date()
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filename = "rustc-" + channel + "-" + self.build + ".tar.gz"
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url = "https://static.rust-lang.org/dist/" + self.stage0_rustc_date()
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tarball = os.path.join(rustc_cache, filename)
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if not os.path.exists(tarball):
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get(url + "/" + filename, tarball, verbose=self.verbose)
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unpack(tarball, self.bin_root(), match="rustc", verbose=self.verbose)
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with open(self.rustc_stamp(), 'w') as f:
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f.write(self.snap_rustc_date())
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f.write(self.stage0_rustc_date())
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if self.cargo().startswith(self.bin_root()) and \
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(not os.path.exists(self.cargo()) or self.cargo_out_of_date()):
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filename = "cargo-nightly-" + self.build + ".tar.gz"
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url = "https://static.rust-lang.org/cargo-dist/" + self.snap_cargo_date()
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channel = self.stage0_cargo_channel()
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filename = "cargo-" + channel + "-" + self.build + ".tar.gz"
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url = "https://static.rust-lang.org/cargo-dist/" + self.stage0_cargo_date()
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tarball = os.path.join(cargo_cache, filename)
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if not os.path.exists(tarball):
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get(url + "/" + filename, tarball, verbose=self.verbose)
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unpack(tarball, self.bin_root(), match="cargo", verbose=self.verbose)
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with open(self.cargo_stamp(), 'w') as f:
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f.write(self.snap_cargo_date())
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f.write(self.stage0_cargo_date())
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def snap_cargo_date(self):
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def stage0_cargo_date(self):
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return self._cargo_date
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def snap_rustc_date(self):
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def stage0_cargo_channel(self):
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return self._cargo_channel
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def stage0_rustc_date(self):
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return self._rustc_date
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def stage0_rustc_channel(self):
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return self._rustc_channel
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def rustc_stamp(self):
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return os.path.join(self.bin_root(), '.rustc-stamp')
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@ -138,13 +157,13 @@ class RustBuild:
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if not os.path.exists(self.rustc_stamp()):
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return True
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with open(self.rustc_stamp(), 'r') as f:
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return self.snap_rustc_date() != f.read()
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return self.stage0_rustc_date() != f.read()
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def cargo_out_of_date(self):
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if not os.path.exists(self.cargo_stamp()):
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return True
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with open(self.cargo_stamp(), 'r') as f:
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return self.snap_cargo_date() != f.read()
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return self.stage0_cargo_date() != f.read()
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def bin_root(self):
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return os.path.join(self.build_dir, self.build, "stage0")
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@ -187,15 +206,6 @@ class RustBuild:
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else:
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return ''
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def parse_nightly_dates(self):
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nightlies = os.path.join(self.rust_root, "src/nightlies.txt")
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with open(nightlies, 'r') as nightlies:
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rustc, cargo = nightlies.read().split("\n")[:2]
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assert rustc.startswith("rustc: ")
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assert cargo.startswith("cargo: ")
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self._rustc_date = rustc[len("rustc: "):]
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self._cargo_date = cargo[len("cargo: "):]
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def build_bootstrap(self):
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env = os.environ.copy()
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env["CARGO_TARGET_DIR"] = os.path.join(self.build_dir, "bootstrap")
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@ -300,46 +310,53 @@ class RustBuild:
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return cputype + '-' + ostype
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parser = argparse.ArgumentParser(description='Build rust')
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parser.add_argument('--config')
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parser.add_argument('-v', '--verbose', action='store_true')
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def main():
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parser = argparse.ArgumentParser(description='Build rust')
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parser.add_argument('--config')
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parser.add_argument('-v', '--verbose', action='store_true')
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args = [a for a in sys.argv if a != '-h']
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args, _ = parser.parse_known_args(args)
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args = [a for a in sys.argv if a != '-h']
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args, _ = parser.parse_known_args(args)
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# Configure initial bootstrap
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rb = RustBuild()
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rb.config_toml = ''
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rb.config_mk = ''
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rb.rust_root = os.path.abspath(os.path.join(__file__, '../../..'))
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rb.build_dir = os.path.join(os.getcwd(), "build")
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rb.verbose = args.verbose
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# Configure initial bootstrap
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rb = RustBuild()
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rb.config_toml = ''
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rb.config_mk = ''
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rb.rust_root = os.path.abspath(os.path.join(__file__, '../../..'))
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rb.build_dir = os.path.join(os.getcwd(), "build")
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rb.verbose = args.verbose
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try:
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with open(args.config or 'config.toml') as config:
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rb.config_toml = config.read()
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except:
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pass
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try:
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rb.config_mk = open('config.mk').read()
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except:
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pass
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try:
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with open(args.config or 'config.toml') as config:
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rb.config_toml = config.read()
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except:
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pass
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try:
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rb.config_mk = open('config.mk').read()
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except:
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pass
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# Fetch/build the bootstrap
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rb.build = rb.build_triple()
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rb.parse_nightly_dates()
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rb.download_rust_nightly()
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sys.stdout.flush()
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rb.build_bootstrap()
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sys.stdout.flush()
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data = stage0_data(rb.rust_root)
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rb._rustc_channel, rb._rustc_date = data['rustc'].split('-', 1)
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rb._cargo_channel, rb._cargo_date = data['cargo'].split('-', 1)
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# Run the bootstrap
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args = [os.path.join(rb.build_dir, "bootstrap/debug/bootstrap")]
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args.append('--src')
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args.append(rb.rust_root)
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args.append('--build')
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args.append(rb.build)
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args.extend(sys.argv[1:])
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env = os.environ.copy()
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env["BOOTSTRAP_PARENT_ID"] = str(os.getpid())
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rb.run(args, env)
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# Fetch/build the bootstrap
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rb.build = rb.build_triple()
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rb.download_stage0()
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sys.stdout.flush()
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rb.build_bootstrap()
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sys.stdout.flush()
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# Run the bootstrap
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args = [os.path.join(rb.build_dir, "bootstrap/debug/bootstrap")]
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args.append('--src')
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args.append(rb.rust_root)
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args.append('--build')
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args.append(rb.build)
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args.extend(sys.argv[1:])
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env = os.environ.copy()
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env["BOOTSTRAP_PARENT_ID"] = str(os.getpid())
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rb.run(args, env)
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if __name__ == '__main__':
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main()
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@ -84,4 +84,12 @@ pub fn collect(build: &mut Build) {
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build.bootstrap_key = format!("{:02x}{:02x}{:02x}{:02x}",
|
||||
key[0], key[1], key[2], key[3]);
|
||||
env::set_var("RUSTC_BOOTSTRAP_KEY", &build.bootstrap_key);
|
||||
|
||||
let mut s = String::new();
|
||||
t!(t!(File::open(build.src.join("src/stage0.txt"))).read_to_string(&mut s));
|
||||
if let Some(line) = s.lines().find(|l| l.starts_with("rustc_key")) {
|
||||
if let Some(key) = line.split(": ").nth(1) {
|
||||
build.bootstrap_key_stage0 = key.to_string();
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
@ -179,7 +179,6 @@ pub fn rustc<'a>(build: &'a Build, target: &str, compiler: &Compiler<'a>) {
|
||||
.env("CFG_VERSION", &build.version)
|
||||
.env("CFG_BOOTSTRAP_KEY", &build.bootstrap_key)
|
||||
.env("CFG_PREFIX", build.config.prefix.clone().unwrap_or(String::new()))
|
||||
.env("RUSTC_BOOTSTRAP_KEY", &build.bootstrap_key)
|
||||
.env("CFG_LIBDIR_RELATIVE", "lib");
|
||||
|
||||
if let Some(ref ver_date) = build.ver_date {
|
||||
|
||||
@ -79,6 +79,7 @@ pub struct Build {
|
||||
version: String,
|
||||
package_vers: String,
|
||||
bootstrap_key: String,
|
||||
bootstrap_key_stage0: String,
|
||||
|
||||
// Probed tools at runtime
|
||||
gdb_version: Option<String>,
|
||||
@ -129,6 +130,7 @@ impl Build {
|
||||
ver_date: None,
|
||||
version: String::new(),
|
||||
bootstrap_key: String::new(),
|
||||
bootstrap_key_stage0: String::new(),
|
||||
package_vers: String::new(),
|
||||
cc: HashMap::new(),
|
||||
cxx: HashMap::new(),
|
||||
@ -402,6 +404,17 @@ impl Build {
|
||||
.env("RUSTDOC_REAL", self.rustdoc(compiler))
|
||||
.env("RUSTC_FLAGS", self.rustc_flags(target).join(" "));
|
||||
|
||||
// Set the bootstrap key depending on which stage compiler we're using.
|
||||
// In stage0 we're using a previously released stable compiler, so we
|
||||
// use the stage0 bootstrap key. Otherwise we use our own build's
|
||||
// bootstrap key.
|
||||
let bootstrap_key = if compiler.is_snapshot(self) {
|
||||
&self.bootstrap_key_stage0
|
||||
} else {
|
||||
&self.bootstrap_key
|
||||
};
|
||||
cargo.env("RUSTC_BOOTSTRAP_KEY", bootstrap_key);
|
||||
|
||||
// Specify some various options for build scripts used throughout
|
||||
// the build.
|
||||
//
|
||||
|
||||
@ -1,78 +0,0 @@
|
||||
#!/usr/bin/env python
|
||||
#
|
||||
# Copyright 2011-2014 The Rust Project Developers. See the COPYRIGHT
|
||||
# file at the top-level directory of this distribution and at
|
||||
# http://rust-lang.org/COPYRIGHT.
|
||||
#
|
||||
# Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
|
||||
# http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
|
||||
# <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
|
||||
# option. This file may not be copied, modified, or distributed
|
||||
# except according to those terms.
|
||||
|
||||
import os
|
||||
import tarfile
|
||||
import shutil
|
||||
import sys
|
||||
from snapshot import *
|
||||
|
||||
|
||||
def unpack_snapshot(triple, dl_path):
|
||||
print("opening snapshot " + dl_path)
|
||||
tar = tarfile.open(dl_path)
|
||||
kernel = get_kernel(triple)
|
||||
|
||||
stagep = os.path.join(triple, "stage0")
|
||||
|
||||
# Remove files from prior unpackings, since snapshot rustc may not
|
||||
# be able to disambiguate between multiple candidate libraries.
|
||||
# (Leave dirs in place since extracting step still needs them.)
|
||||
for root, _, files in os.walk(stagep):
|
||||
for f in files:
|
||||
print("removing " + os.path.join(root, f))
|
||||
os.unlink(os.path.join(root, f))
|
||||
|
||||
for p in tar.getnames():
|
||||
name = p.replace("rust-stage0/", "", 1)
|
||||
|
||||
fp = os.path.join(stagep, name)
|
||||
print("extracting " + p)
|
||||
tar.extract(p, download_unpack_base)
|
||||
tp = os.path.join(download_unpack_base, p)
|
||||
if os.path.isdir(tp) and os.path.exists(fp):
|
||||
continue
|
||||
shutil.move(tp, fp)
|
||||
tar.close()
|
||||
shutil.rmtree(download_unpack_base)
|
||||
|
||||
|
||||
# Main
|
||||
|
||||
# this gets called with one or two arguments:
|
||||
# The first is the O/S triple.
|
||||
# The second is an optional path to the snapshot to use.
|
||||
|
||||
def main(argv):
|
||||
triple = argv[1]
|
||||
if len(argv) == 3:
|
||||
dl_path = argv[2]
|
||||
else:
|
||||
snap = determine_curr_snapshot(triple)
|
||||
dl = os.path.join(download_dir_base, snap)
|
||||
url = download_url_base + "/" + snap
|
||||
print("determined most recent snapshot: " + snap)
|
||||
|
||||
if (not os.path.exists(dl)):
|
||||
get_url_to_file(url, dl)
|
||||
|
||||
if (snap_filename_hash_part(snap) == hash_file(dl)):
|
||||
print("got download with ok hash")
|
||||
else:
|
||||
raise Exception("bad hash on download")
|
||||
|
||||
dl_path = os.path.join(download_dir_base, snap)
|
||||
|
||||
unpack_snapshot(triple, dl_path)
|
||||
|
||||
if __name__ == '__main__':
|
||||
main(sys.argv)
|
||||
51
src/etc/get-stage0.py
Normal file
51
src/etc/get-stage0.py
Normal file
@ -0,0 +1,51 @@
|
||||
#!/usr/bin/env python
|
||||
#
|
||||
# Copyright 2016 The Rust Project Developers. See the COPYRIGHT
|
||||
# file at the top-level directory of this distribution and at
|
||||
# http://rust-lang.org/COPYRIGHT.
|
||||
#
|
||||
# Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
|
||||
# http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
|
||||
# <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
|
||||
# option. This file may not be copied, modified, or distributed
|
||||
# except according to those terms.
|
||||
|
||||
import os
|
||||
import shutil
|
||||
import sys
|
||||
import tarfile
|
||||
|
||||
path = os.path.abspath(os.path.join(os.path.dirname(__file__), "../bootstrap"))
|
||||
sys.path.append(path)
|
||||
|
||||
import bootstrap
|
||||
|
||||
def main(argv):
|
||||
src_root = os.path.abspath(os.path.join(os.path.dirname(__file__), "../.."))
|
||||
triple = argv[1]
|
||||
data = bootstrap.stage0_data(src_root)
|
||||
|
||||
channel, date = data['rustc'].split('-', 1)
|
||||
|
||||
dl_dir = 'dl'
|
||||
if not os.path.exists(dl_dir):
|
||||
os.makedirs(dl_dir)
|
||||
|
||||
filename_base = 'rustc-' + channel + '-' + triple
|
||||
filename = filename_base + '.tar.gz'
|
||||
url = 'https://static.rust-lang.org/dist/' + date + '/' + filename
|
||||
dst = dl_dir + '/' + filename
|
||||
if not os.path.exists(dst):
|
||||
bootstrap.get(url, dst)
|
||||
|
||||
stage0_dst = triple + '/stage0'
|
||||
if os.path.exists(stage0_dst):
|
||||
for root, _, files in os.walk(stage0_dst):
|
||||
for f in files:
|
||||
os.unlink(os.path.join(root, f))
|
||||
else:
|
||||
os.makedirs(stage0_dst)
|
||||
bootstrap.unpack(dst, stage0_dst, match='rustc', verbose=True)
|
||||
|
||||
if __name__ == '__main__':
|
||||
main(sys.argv)
|
||||
@ -1,65 +0,0 @@
|
||||
#!/usr/bin/env python
|
||||
#
|
||||
# Copyright 2012-2013 The Rust Project Developers. See the COPYRIGHT
|
||||
# file at the top-level directory of this distribution and at
|
||||
# http://rust-lang.org/COPYRIGHT.
|
||||
#
|
||||
# Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
|
||||
# http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
|
||||
# <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
|
||||
# option. This file may not be copied, modified, or distributed
|
||||
# except according to those terms.
|
||||
|
||||
import os
|
||||
import re
|
||||
from snapshot import *
|
||||
|
||||
f = open(snapshotfile)
|
||||
date = None
|
||||
rev = None
|
||||
platform = None
|
||||
snap = None
|
||||
i = 0
|
||||
|
||||
newestSet = {}
|
||||
|
||||
|
||||
for line in f.readlines():
|
||||
i += 1
|
||||
parsed = parse_line(i, line)
|
||||
if not parsed:
|
||||
continue
|
||||
|
||||
if parsed["type"] == "snapshot":
|
||||
if (len(newestSet) == 0 or parsed["date"] > newestSet["date"]):
|
||||
newestSet["date"] = parsed["date"]
|
||||
newestSet["rev"] = parsed["rev"]
|
||||
newestSet["files"] = []
|
||||
addingMode = True
|
||||
else:
|
||||
addingMode = False
|
||||
|
||||
elif addingMode is True and parsed["type"] == "file":
|
||||
tux = re.compile("linux", re.IGNORECASE)
|
||||
if (tux.match(parsed["platform"]) is not None):
|
||||
ff = {}
|
||||
ff["platform"] = parsed["platform"]
|
||||
ff["hash"] = parsed["hash"]
|
||||
newestSet["files"] += [ff]
|
||||
|
||||
|
||||
def download_new_file(date, rev, platform, hsh):
|
||||
snap = full_snapshot_name(date, rev, platform, hsh)
|
||||
dl = os.path.join(download_dir_base, snap)
|
||||
url = download_url_base + "/" + snap
|
||||
if (not os.path.exists(dl)):
|
||||
print("downloading " + url)
|
||||
get_url_to_file(url, dl)
|
||||
if (snap_filename_hash_part(snap) == hash_file(dl)):
|
||||
print("got download with ok hash")
|
||||
else:
|
||||
raise Exception("bad hash on download")
|
||||
|
||||
for ff in newestSet["files"]:
|
||||
download_new_file(newestSet["date"], newestSet["rev"],
|
||||
ff["platform"], ff["hash"])
|
||||
@ -1,15 +0,0 @@
|
||||
#!/usr/bin/env python
|
||||
#
|
||||
# Copyright 2011-2014 The Rust Project Developers. See the COPYRIGHT
|
||||
# file at the top-level directory of this distribution and at
|
||||
# http://rust-lang.org/COPYRIGHT.
|
||||
#
|
||||
# Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
|
||||
# http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
|
||||
# <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
|
||||
# option. This file may not be copied, modified, or distributed
|
||||
# except according to those terms.
|
||||
|
||||
import snapshot, sys
|
||||
|
||||
print(snapshot.make_snapshot(sys.argv[1], sys.argv[2]))
|
||||
@ -1,45 +0,0 @@
|
||||
#!/usr/bin/env python
|
||||
#
|
||||
# Copyright 2011-2013 The Rust Project Developers. See the COPYRIGHT
|
||||
# file at the top-level directory of this distribution and at
|
||||
# http://rust-lang.org/COPYRIGHT.
|
||||
#
|
||||
# Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
|
||||
# http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
|
||||
# <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
|
||||
# option. This file may not be copied, modified, or distributed
|
||||
# except according to those terms.
|
||||
|
||||
import os
|
||||
from snapshot import *
|
||||
|
||||
f = open(snapshotfile)
|
||||
date = None
|
||||
rev = None
|
||||
platform = None
|
||||
snap = None
|
||||
i = 0
|
||||
|
||||
for line in f.readlines():
|
||||
i += 1
|
||||
parsed = parse_line(i, line)
|
||||
if not parsed:
|
||||
continue
|
||||
|
||||
if parsed["type"] == "snapshot":
|
||||
date = parsed["date"]
|
||||
rev = parsed["rev"]
|
||||
|
||||
elif rev is not None and parsed["type"] == "file":
|
||||
platform = parsed["platform"]
|
||||
hsh = parsed["hash"]
|
||||
snap = full_snapshot_name(date, rev, platform, hsh)
|
||||
dl = os.path.join(download_dir_base, snap)
|
||||
url = download_url_base + "/" + snap
|
||||
if (not os.path.exists(dl)):
|
||||
print("downloading " + url)
|
||||
get_url_to_file(url, dl)
|
||||
if (snap_filename_hash_part(snap) == hash_file(dl)):
|
||||
print("got download with ok hash")
|
||||
else:
|
||||
raise Exception("bad hash on download")
|
||||
@ -1,304 +0,0 @@
|
||||
# Copyright 2011-2015 The Rust Project Developers. See the COPYRIGHT
|
||||
# file at the top-level directory of this distribution and at
|
||||
# http://rust-lang.org/COPYRIGHT.
|
||||
#
|
||||
# Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
|
||||
# http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
|
||||
# <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
|
||||
# option. This file may not be copied, modified, or distributed
|
||||
# except according to those terms.
|
||||
|
||||
import re
|
||||
import os
|
||||
import sys
|
||||
import glob
|
||||
import tarfile
|
||||
import shutil
|
||||
import subprocess
|
||||
import distutils.spawn
|
||||
|
||||
try:
|
||||
import hashlib
|
||||
sha_func = hashlib.sha1
|
||||
except ImportError:
|
||||
import sha
|
||||
sha_func = sha.new
|
||||
|
||||
|
||||
def scrub(b):
|
||||
if sys.version_info >= (3,) and type(b) == bytes:
|
||||
return b.decode('ascii')
|
||||
else:
|
||||
return b
|
||||
|
||||
src_dir = scrub(os.getenv("CFG_SRC_DIR"))
|
||||
if not src_dir:
|
||||
raise Exception("missing env var CFG_SRC_DIR")
|
||||
|
||||
snapshotfile = os.path.join(src_dir, "src", "snapshots.txt")
|
||||
download_url_base = "https://static.rust-lang.org/stage0-snapshots"
|
||||
download_dir_base = "dl"
|
||||
download_unpack_base = os.path.join(download_dir_base, "unpack")
|
||||
|
||||
snapshot_files = {
|
||||
"bitrig": ["bin/rustc"],
|
||||
"dragonfly": ["bin/rustc"],
|
||||
"freebsd": ["bin/rustc"],
|
||||
"linux": ["bin/rustc"],
|
||||
"macos": ["bin/rustc"],
|
||||
"netbsd": ["bin/rustc"],
|
||||
"openbsd": ["bin/rustc"],
|
||||
"solaris": ["bin/rustc"],
|
||||
"winnt": ["bin/rustc.exe"],
|
||||
}
|
||||
|
||||
winnt_runtime_deps_32 = ["libgcc_s_dw2-1.dll", "libstdc++-6.dll"]
|
||||
winnt_runtime_deps_64 = ["libgcc_s_seh-1.dll", "libstdc++-6.dll"]
|
||||
|
||||
def parse_line(n, line):
|
||||
global snapshotfile
|
||||
|
||||
if re.match(r"\s*$", line):
|
||||
return None
|
||||
|
||||
if re.match(r"^T\s*$", line):
|
||||
return None
|
||||
|
||||
match = re.match(r"\s+([\w_-]+) ([a-fA-F\d]{40})\s*$", line)
|
||||
if match:
|
||||
return {"type": "file",
|
||||
"platform": match.group(1),
|
||||
"hash": match.group(2).lower()}
|
||||
|
||||
match = re.match(r"([ST]) (\d{4}-\d{2}-\d{2}) ([a-fA-F\d]+)\s*$", line)
|
||||
if not match:
|
||||
raise Exception("%s:%d:E syntax error: " % (snapshotfile, n))
|
||||
return {"type": "snapshot",
|
||||
"date": match.group(2),
|
||||
"rev": match.group(3)}
|
||||
|
||||
|
||||
def partial_snapshot_name(date, rev, platform):
|
||||
return ("rust-stage0-%s-%s-%s.tar.bz2" %
|
||||
(date, rev, platform))
|
||||
|
||||
|
||||
def full_snapshot_name(date, rev, platform, hsh):
|
||||
return ("rust-stage0-%s-%s-%s-%s.tar.bz2" %
|
||||
(date, rev, platform, hsh))
|
||||
|
||||
|
||||
def get_kernel(triple):
|
||||
t = triple.split('-')
|
||||
if len(t) == 2:
|
||||
os_name = t[1]
|
||||
else:
|
||||
os_name = t[2]
|
||||
|
||||
if os_name == "windows":
|
||||
return "winnt"
|
||||
if os_name == "darwin":
|
||||
return "macos"
|
||||
if os_name == "freebsd":
|
||||
return "freebsd"
|
||||
if os_name == "dragonfly":
|
||||
return "dragonfly"
|
||||
if os_name == "bitrig":
|
||||
return "bitrig"
|
||||
if os_name == "netbsd":
|
||||
return "netbsd"
|
||||
if os_name == "openbsd":
|
||||
return "openbsd"
|
||||
return "linux"
|
||||
|
||||
|
||||
def get_cpu(triple):
|
||||
arch = triple.split('-')[0]
|
||||
if arch == "i686":
|
||||
return "i386"
|
||||
return arch
|
||||
|
||||
|
||||
def get_platform(triple):
|
||||
return "%s-%s" % (get_kernel(triple), get_cpu(triple))
|
||||
|
||||
|
||||
def cmd_out(cmdline):
|
||||
p = subprocess.Popen(cmdline, stdout=subprocess.PIPE)
|
||||
return scrub(p.communicate()[0].strip())
|
||||
|
||||
|
||||
def local_rev_info(field):
|
||||
return cmd_out(["git", "--git-dir=" + os.path.join(src_dir, ".git"),
|
||||
"log", "-n", "1",
|
||||
"--format=%%%s" % field, "HEAD"])
|
||||
|
||||
|
||||
def local_rev_full_sha():
|
||||
return local_rev_info("H").split()[0]
|
||||
|
||||
|
||||
def local_rev_short_sha():
|
||||
return local_rev_info("h").split()[0]
|
||||
|
||||
|
||||
def local_rev_committer_date():
|
||||
return local_rev_info("ci")
|
||||
|
||||
|
||||
def get_url_to_file(u, f):
|
||||
# no security issue, just to stop partial download leaving a stale file
|
||||
tmpf = f + '.tmp'
|
||||
|
||||
returncode = -1
|
||||
if distutils.spawn.find_executable("curl"):
|
||||
returncode = subprocess.call(["curl", "-o", tmpf, u])
|
||||
elif distutils.spawn.find_executable("wget"):
|
||||
returncode = subprocess.call(["wget", "-O", tmpf, u])
|
||||
|
||||
if returncode != 0:
|
||||
try:
|
||||
os.unlink(tmpf)
|
||||
except OSError:
|
||||
pass
|
||||
raise Exception("failed to fetch url")
|
||||
os.rename(tmpf, f)
|
||||
|
||||
|
||||
def snap_filename_hash_part(snap):
|
||||
match = re.match(r".*([a-fA-F\d]{40}).tar.bz2$", snap)
|
||||
if not match:
|
||||
raise Exception("unable to find hash in filename: " + snap)
|
||||
return match.group(1)
|
||||
|
||||
|
||||
def hash_file(x):
|
||||
h = sha_func()
|
||||
h.update(open(x, "rb").read())
|
||||
return scrub(h.hexdigest())
|
||||
|
||||
|
||||
def get_winnt_runtime_deps(platform):
|
||||
"""Returns a list of paths of Rust's system runtime dependencies"""
|
||||
if platform == "winnt-x86_64":
|
||||
deps = winnt_runtime_deps_64
|
||||
else:
|
||||
deps = winnt_runtime_deps_32
|
||||
runtime_deps = []
|
||||
path_dirs = os.environ["PATH"].split(os.pathsep)
|
||||
for name in deps:
|
||||
for dir in path_dirs:
|
||||
filepath = os.path.join(dir, name)
|
||||
if os.path.isfile(filepath):
|
||||
runtime_deps.append(filepath)
|
||||
break
|
||||
else:
|
||||
raise Exception("Could not find runtime dependency: %s" % name)
|
||||
return runtime_deps
|
||||
|
||||
|
||||
def make_snapshot(stage, triple):
|
||||
kernel = get_kernel(triple)
|
||||
platform = get_platform(triple)
|
||||
rev = local_rev_short_sha()
|
||||
date = local_rev_committer_date().split()[0]
|
||||
|
||||
file0 = partial_snapshot_name(date, rev, platform)
|
||||
|
||||
def in_tar_name(fn):
|
||||
cs = re.split(r"[\\/]", fn)
|
||||
if len(cs) >= 2:
|
||||
return os.sep.join(cs[-2:])
|
||||
|
||||
tar = tarfile.open(file0, "w:bz2")
|
||||
|
||||
for name in snapshot_files[kernel]:
|
||||
dir = stage
|
||||
if stage == "stage1" and re.match(r"^lib/(lib)?std.*", name):
|
||||
dir = "stage0"
|
||||
fn_glob = os.path.join(triple, dir, name)
|
||||
matches = glob.glob(fn_glob)
|
||||
if not matches:
|
||||
raise Exception("Not found file with name like " + fn_glob)
|
||||
if len(matches) == 1:
|
||||
tar.add(matches[0], "rust-stage0/" + in_tar_name(matches[0]))
|
||||
else:
|
||||
raise Exception("Found stale files: \n %s\n"
|
||||
"Please make a clean build." % "\n ".join(matches))
|
||||
|
||||
if kernel == "winnt":
|
||||
for path in get_winnt_runtime_deps(platform):
|
||||
tar.add(path, "rust-stage0/bin/" + os.path.basename(path))
|
||||
tar.add(os.path.join(os.path.dirname(__file__), "third-party"),
|
||||
"rust-stage0/bin/third-party")
|
||||
|
||||
tar.close()
|
||||
|
||||
h = hash_file(file0)
|
||||
file1 = full_snapshot_name(date, rev, platform, h)
|
||||
|
||||
shutil.move(file0, file1)
|
||||
|
||||
return file1
|
||||
|
||||
|
||||
def curr_snapshot_rev():
|
||||
i = 0
|
||||
found_snap = False
|
||||
date = None
|
||||
rev = None
|
||||
|
||||
f = open(snapshotfile)
|
||||
for line in f.readlines():
|
||||
i += 1
|
||||
parsed = parse_line(i, line)
|
||||
if not parsed:
|
||||
continue
|
||||
|
||||
if parsed["type"] == "snapshot":
|
||||
date = parsed["date"]
|
||||
rev = parsed["rev"]
|
||||
found_snap = True
|
||||
break
|
||||
|
||||
if not found_snap:
|
||||
raise Exception("no snapshot entries in file")
|
||||
|
||||
return (date, rev)
|
||||
|
||||
|
||||
def determine_curr_snapshot(triple):
|
||||
i = 0
|
||||
platform = get_platform(triple)
|
||||
|
||||
found_file = False
|
||||
found_snap = False
|
||||
hsh = None
|
||||
date = None
|
||||
rev = None
|
||||
|
||||
f = open(snapshotfile)
|
||||
for line in f.readlines():
|
||||
i += 1
|
||||
parsed = parse_line(i, line)
|
||||
if not parsed:
|
||||
continue
|
||||
|
||||
if found_snap and parsed["type"] == "file":
|
||||
if parsed["platform"] == platform:
|
||||
hsh = parsed["hash"]
|
||||
found_file = True
|
||||
break
|
||||
elif parsed["type"] == "snapshot":
|
||||
date = parsed["date"]
|
||||
rev = parsed["rev"]
|
||||
found_snap = True
|
||||
|
||||
if not found_snap:
|
||||
raise Exception("no snapshot entries in file")
|
||||
|
||||
if not found_file:
|
||||
raise Exception("no snapshot file found for platform %s, rev %s" %
|
||||
(platform, rev))
|
||||
|
||||
return full_snapshot_name(date, rev, platform, hsh)
|
||||
@ -53,34 +53,14 @@ extern "rust-intrinsic" {
|
||||
// NB: These intrinsics take raw pointers because they mutate aliased
|
||||
// memory, which is not valid for either `&` or `&mut`.
|
||||
|
||||
#[cfg(all(stage0, not(cargobuild)))]
|
||||
pub fn atomic_cxchg<T>(dst: *mut T, old: T, src: T) -> T;
|
||||
#[cfg(all(stage0, not(cargobuild)))]
|
||||
pub fn atomic_cxchg_acq<T>(dst: *mut T, old: T, src: T) -> T;
|
||||
#[cfg(all(stage0, not(cargobuild)))]
|
||||
pub fn atomic_cxchg_rel<T>(dst: *mut T, old: T, src: T) -> T;
|
||||
#[cfg(all(stage0, not(cargobuild)))]
|
||||
pub fn atomic_cxchg_acqrel<T>(dst: *mut T, old: T, src: T) -> T;
|
||||
#[cfg(all(stage0, not(cargobuild)))]
|
||||
pub fn atomic_cxchg_relaxed<T>(dst: *mut T, old: T, src: T) -> T;
|
||||
|
||||
#[cfg(any(not(stage0), cargobuild))]
|
||||
pub fn atomic_cxchg<T>(dst: *mut T, old: T, src: T) -> (T, bool);
|
||||
#[cfg(any(not(stage0), cargobuild))]
|
||||
pub fn atomic_cxchg_acq<T>(dst: *mut T, old: T, src: T) -> (T, bool);
|
||||
#[cfg(any(not(stage0), cargobuild))]
|
||||
pub fn atomic_cxchg_rel<T>(dst: *mut T, old: T, src: T) -> (T, bool);
|
||||
#[cfg(any(not(stage0), cargobuild))]
|
||||
pub fn atomic_cxchg_acqrel<T>(dst: *mut T, old: T, src: T) -> (T, bool);
|
||||
#[cfg(any(not(stage0), cargobuild))]
|
||||
pub fn atomic_cxchg_relaxed<T>(dst: *mut T, old: T, src: T) -> (T, bool);
|
||||
#[cfg(any(not(stage0), cargobuild))]
|
||||
pub fn atomic_cxchg_failrelaxed<T>(dst: *mut T, old: T, src: T) -> (T, bool);
|
||||
#[cfg(any(not(stage0), cargobuild))]
|
||||
pub fn atomic_cxchg_failacq<T>(dst: *mut T, old: T, src: T) -> (T, bool);
|
||||
#[cfg(any(not(stage0), cargobuild))]
|
||||
pub fn atomic_cxchg_acq_failrelaxed<T>(dst: *mut T, old: T, src: T) -> (T, bool);
|
||||
#[cfg(any(not(stage0), cargobuild))]
|
||||
pub fn atomic_cxchg_acqrel_failrelaxed<T>(dst: *mut T, old: T, src: T) -> (T, bool);
|
||||
|
||||
pub fn atomic_cxchgweak<T>(dst: *mut T, old: T, src: T) -> (T, bool);
|
||||
@ -548,27 +528,22 @@ extern "rust-intrinsic" {
|
||||
|
||||
/// Float addition that allows optimizations based on algebraic rules.
|
||||
/// May assume inputs are finite.
|
||||
#[cfg(not(stage0))]
|
||||
pub fn fadd_fast<T>(a: T, b: T) -> T;
|
||||
|
||||
/// Float subtraction that allows optimizations based on algebraic rules.
|
||||
/// May assume inputs are finite.
|
||||
#[cfg(not(stage0))]
|
||||
pub fn fsub_fast<T>(a: T, b: T) -> T;
|
||||
|
||||
/// Float multiplication that allows optimizations based on algebraic rules.
|
||||
/// May assume inputs are finite.
|
||||
#[cfg(not(stage0))]
|
||||
pub fn fmul_fast<T>(a: T, b: T) -> T;
|
||||
|
||||
/// Float division that allows optimizations based on algebraic rules.
|
||||
/// May assume inputs are finite.
|
||||
#[cfg(not(stage0))]
|
||||
pub fn fdiv_fast<T>(a: T, b: T) -> T;
|
||||
|
||||
/// Float remainder that allows optimizations based on algebraic rules.
|
||||
/// May assume inputs are finite.
|
||||
#[cfg(not(stage0))]
|
||||
pub fn frem_fast<T>(a: T, b: T) -> T;
|
||||
|
||||
|
||||
|
||||
@ -1380,7 +1380,6 @@ unsafe fn atomic_sub<T>(dst: *mut T, val: T, order: Ordering) -> T {
|
||||
}
|
||||
|
||||
#[inline]
|
||||
#[cfg(any(not(stage0), cargobuild))]
|
||||
unsafe fn atomic_compare_exchange<T>(dst: *mut T,
|
||||
old: T,
|
||||
new: T,
|
||||
@ -1407,29 +1406,6 @@ unsafe fn atomic_compare_exchange<T>(dst: *mut T,
|
||||
}
|
||||
}
|
||||
|
||||
#[inline]
|
||||
#[cfg(all(stage0, not(cargobuild)))]
|
||||
unsafe fn atomic_compare_exchange<T>(dst: *mut T,
|
||||
old: T,
|
||||
new: T,
|
||||
success: Ordering,
|
||||
_: Ordering) -> Result<T, T>
|
||||
where T: ::cmp::Eq + ::marker::Copy
|
||||
{
|
||||
let val = match success {
|
||||
Acquire => intrinsics::atomic_cxchg_acq(dst, old, new),
|
||||
Release => intrinsics::atomic_cxchg_rel(dst, old, new),
|
||||
AcqRel => intrinsics::atomic_cxchg_acqrel(dst, old, new),
|
||||
Relaxed => intrinsics::atomic_cxchg_relaxed(dst, old, new),
|
||||
SeqCst => intrinsics::atomic_cxchg(dst, old, new),
|
||||
};
|
||||
if val == old {
|
||||
Ok(val)
|
||||
} else {
|
||||
Err(val)
|
||||
}
|
||||
}
|
||||
|
||||
#[inline]
|
||||
unsafe fn atomic_compare_exchange_weak<T>(dst: *mut T,
|
||||
old: T,
|
||||
|
||||
@ -1,2 +0,0 @@
|
||||
rustc: 2016-03-20
|
||||
cargo: 2016-03-11
|
||||
2326
src/snapshots.txt
2326
src/snapshots.txt
File diff suppressed because it is too large
Load Diff
17
src/stage0.txt
Normal file
17
src/stage0.txt
Normal file
@ -0,0 +1,17 @@
|
||||
# This file describes the stage0 compiler that's used to then bootstrap the Rust
|
||||
# compiler itself. For the rustbuild build system, this also describes the
|
||||
# relevant Cargo revision that we're using.
|
||||
#
|
||||
# Currently Rust always bootstrap from the previous stable release, and in our
|
||||
# train model this means that the master branch bootstraps from beta, beta
|
||||
# bootstraps from current stable, and stable bootstraps from the previous stable
|
||||
# release.
|
||||
#
|
||||
# If you're looking at this file on the master branch, you'll likely see that
|
||||
# rustc bootstraps from `beta-$date`, whereas if you're looking at a source
|
||||
# tarball for a stable release you'll likely see `1.x.0-$date` where `1.x.0` was
|
||||
# released on `$date`
|
||||
|
||||
rustc: beta-2016-04-13
|
||||
rustc_key: c2743eb4
|
||||
cargo: nightly-2016-04-10
|
||||
Loading…
Reference in New Issue
Block a user