Merge pull request #27222 from JuliaLang/vc/appveyot_ccache

Use ccache on AppVeyor to speedup builds

Author: vchuravy

appveyor.yml

@@ -35,6 +35,7 @@ cache:
   - llvm-3.9.1-i686-w64-mingw32-juliadeps-r07.7z
   - llvm-3.9.1-x86_64-w64-mingw32-juliadeps-r07.7z
   - usr/bin/busybox.exe
+  - C:\ccache
 
 build_script:
 # If there's a newer build queued for the same PR, cancel this one

contrib/windows/appveyor_build.sh

@@ -205,6 +205,8 @@ else
   # Use BinaryBuilder
   echo 'USE_BINARYBUILDER_LLVM = 1' >> Make.user
   echo 'override DEP_LIBS += llvm openlibm' >> Make.user
+  export CCACHE_DIR=/cygdrive/c/ccache
+  echo 'USECCACHE=1' >> Make.user
   make check-whitespace
   make VERBOSE=1 -C base version_git.jl.phony
   echo 'NO_GIT = 1' >> Make.user
@@ -217,3 +219,4 @@ make -j3 VERBOSE=1 install
 make VERBOSE=1 JULIA=../../usr/bin/julia.exe BIN=. "$(make print-CC)" -C test/embedding release
 cp usr/bin/busybox.exe julia-*/bin
 make build-stats
+ccache -s

contrib/windows/install-cygwin.ps1

@@ -5,5 +5,5 @@ mkdir -Force C:\cygdownloads | Out-Null
   "https://cache.julialang.org/https://cygwin.com/$setup", "C:\cygdownloads\$setup")
 & "C:\cygdownloads\$setup" -q -n -R C:\cygwin-$env:ARCH `
   -l C:\cygdownloads -s http://mirrors.kernel.org/sourceware/cygwin -g -I `
-  -P "make,curl,time,p7zip,mingw64-$env:ARCH-gcc-g++,mingw64-$env:ARCH-gcc-fortran" | Where-Object `
+  -P "make,curl,time,p7zip,ccache,mingw64-$env:ARCH-gcc-g++,mingw64-$env:ARCH-gcc-fortran" | Where-Object `
   -FilterScript {$_ -notlike "Installing file *"} | Write-Output