Ensure that checkout is with \n line endings

This specifically checks the install-template.sh as it's what we've had
problems with.

Author: Mark-Simulacrum

.azure-pipelines/steps/install-windows-build-deps.yml

@@ -4,11 +4,16 @@ steps:
 # drive. We should probably confirm this with the azure pipelines team at some
 # point, but this seems to fix our "disk space full" problems.
 - script: |
+    git config --list --show-origin
     mkdir c:\MORE_SPACE
     mklink /J build c:\MORE_SPACE
+    git config --list --show-origin
   displayName: "Ensure build happens on C:/ instead of D:/"
   condition: and(succeeded(), eq(variables['Agent.OS'], 'Windows_NT'))
 
+- bash: git config --replace-all --system core.autocrlf false
+  displayName: "Disable git automatic line ending conversion (on C:/)"
+
 # Download and install MSYS2, needed primarily for the test suite (run-make) but
 # also used by the MinGW toolchain for assembling things.
 #
@@ -30,6 +35,7 @@ steps:
 
     echo ##vso[task.setvariable variable=MSYS_PATH]%MSYS_PATH%
     echo ##vso[task.prependpath]%MSYS_PATH%\usr\bin
+    git config --list
   displayName: Install msys2
   condition: and(succeeded(), eq(variables['Agent.OS'], 'Windows_NT'))
 
@@ -59,12 +65,14 @@ steps:
     powershell -Command "$ProgressPreference = 'SilentlyContinue'; iwr -outf 2017-04-20-%MSYS_BITS%bit-gdborig.exe %MINGW_URL%/2017-04-20-%MSYS_BITS%bit-gdborig.exe"
     mv 2017-04-20-%MSYS_BITS%bit-gdborig.exe %MINGW_DIR%\bin\gdborig.exe
     echo ##vso[task.prependpath]%CD%\%MINGW_DIR%\bin
+    git config --list --show-origin
   condition: and(succeeded(), eq(variables['Agent.OS'], 'Windows_NT'), ne(variables['MINGW_URL'],''))
   displayName: Download custom MinGW
 
 # Otherwise pull in the MinGW installed on appveyor
 - script: |
     echo ##vso[task.prependpath]%MSYS_PATH%\mingw%MSYS_BITS%\bin
+    git config --list --show-origin
   condition: and(succeeded(), eq(variables['Agent.OS'], 'Windows_NT'), eq(variables['MINGW_URL'],''))
   displayName: Add MinGW to path
 
@@ -75,6 +83,7 @@ steps:
 - script: |
     copy C:\Python27amd64\python.exe C:\Python27amd64\python2.7.exe
     echo ##vso[task.prependpath]C:\Python27amd64
+    git config --list --show-origin
   displayName: Prefer the "native" Python as LLVM has trouble building with MSYS sometimes
   condition: and(succeeded(), eq(variables['Agent.OS'], 'Windows_NT'))
 
@@ -87,5 +96,6 @@ steps:
     set RUST_CONFIGURE_ARGS=%RUST_CONFIGURE_ARGS% --enable-ninja
     echo ##vso[task.setvariable variable=RUST_CONFIGURE_ARGS]%RUST_CONFIGURE_ARGS%
     echo ##vso[task.prependpath]%CD%\ninja
+    git config --list --show-origin
   displayName: Download and install ninja
   condition: and(succeeded(), eq(variables['Agent.OS'], 'Windows_NT'))

.azure-pipelines/steps/run.yml

@@ -12,19 +12,32 @@ steps:
 # Azure's Windows image. Having the conversion enabled caused regressions both
 # in our test suite (it broke miri tests) and in the ecosystem, since we
 # started shipping install scripts with CRLF endings instead of the old LF.
-- bash: git config --global core.autocrlf false
+#
+# Note that we do this a couple times during the build as the PATH and current
+# user/directory change, e.g. when mingw is enabled.
+- bash: git config --replace-all --system core.autocrlf false
   displayName: "Disable git automatic line ending conversion"
 
+- bash: |
+    set -x
+    git config --list --show-origin
+  displayName: git config pre checkout
+
 - checkout: self
   fetchDepth: 2
 
+- bash: git config --list --show-origin
+  displayName: git config post checkout
+
 # Spawn a background process to collect CPU usage statistics which we'll upload
 # at the end of the build. See the comments in the script here for more
 # information.
 - bash: python src/ci/cpu-usage-over-time.py &> cpu-usage.csv &
   displayName: "Collect CPU-usage statistics in the background"
 
-- bash: printenv | sort
+- bash: |
+    printenv | sort
+    git config --list --show-origin
   displayName: Show environment variables
 
 - bash: |
@@ -79,11 +92,24 @@ steps:
   condition: and(succeeded(), ne(variables['Agent.OS'], 'Windows_NT'))
   displayName: Check out submodules (Unix)
 - script: |
+    git config --list --show-origin
     if not exist D:\cache\rustsrc\NUL mkdir D:\cache\rustsrc
     sh src/ci/init_repo.sh . /d/cache/rustsrc
   condition: and(succeeded(), eq(variables['Agent.OS'], 'Windows_NT'))
   displayName: Check out submodules (Windows)
 
+# See also the disable for autocrlf above, this just checks that it worked
+#
+# If matches for '\r' are found, we should immediately exit the build.
+- bash: |
+    set -x
+    git config --list --show-origin
+    dos2unix -ih Cargo.lock src/tools/rust-installer/install-template.sh
+    endings=$(dos2unix -ic Cargo.lock src/tools/rust-installer/install-template.sh)
+    # if endings has non-zero length, error out
+    test -n "$endings" && exit 1
+  displayName: Verify line endings are LF
+
 # Ensure the `aws` CLI is installed so we can deploy later on, cache docker
 # images, etc.
 - bash: |

.azure-pipelines/try.yml

@@ -18,9 +18,35 @@ jobs:
         IMAGE: dist-x86_64-linux
         DEPLOY: 1
 
-      dist-x86_64-linux-alt:
-        IMAGE: dist-x86_64-linux
-        DEPLOY_ALT: 1
+        #      dist-x86_64-linux-alt:
+        #        IMAGE: dist-x86_64-linux
+        #        DEPLOY_ALT: 1
+- job: Windows
+  timeoutInMinutes: 600
+  pool:
+    vmImage: 'vs2017-win2016'
+  steps:
+  - template: steps/run.yml
+  strategy:
+    matrix:
+      dist-i686-msvc:
+        RUST_CONFIGURE_ARGS: >
+          --build=i686-pc-windows-msvc
+          --target=i586-pc-windows-msvc
+          --enable-full-tools
+          --enable-profiler
+        SCRIPT: python x.py dist
+        DIST_REQUIRE_ALL_TOOLS: 1
+        DEPLOY: 1
+      dist-i686-mingw:
+        MSYS_BITS: 32
+        RUST_CONFIGURE_ARGS: --build=i686-pc-windows-gnu --enable-full-tools --enable-profiler
+        SCRIPT: python x.py dist
+        MINGW_URL: https://rust-lang-ci2.s3.amazonaws.com/rust-ci-mirror
+        MINGW_ARCHIVE: i686-6.3.0-release-posix-dwarf-rt_v5-rev2.7z
+        MINGW_DIR: mingw32
+        DIST_REQUIRE_ALL_TOOLS: 1
+        DEPLOY: 1
 
 # The macOS and Windows builds here are currently disabled due to them not being
 # overly necessary on `try` builds. We also don't actually have anything that