Overlay triplets test

[pkgw]

Try using my customized vcpkg with --overlay-triplets and a Windows/static/release build to see if our builds speed up!

[codecov]

Codecov Report

❗ No coverage uploaded for pull request base (master@204f033). Click here to learn what that means.
The diff coverage is n/a.

❗ Current head af495c3 differs from pull request most recent head caab2c2. Consider uploading reports for the commit caab2c2 to get more accurate results

@@            Coverage Diff            @@
##             master     #961   +/-   ##
=========================================
  Coverage          ?   45.18%           
=========================================
  Files             ?      148           
  Lines             ?    62138           
  Branches          ?        0           
=========================================
  Hits              ?    28077           
  Misses            ?    34061           
  Partials          ?        0           

📣 We’re building smart automated test selection to slash your CI/CD build times. Learn more

[pkgw]

Initial findings are quite positive: the Windows build of vcpkg deps speeds up considerably. In my test run here the "Build vcpkg deps" step took 27 minutes, while in recent runs it has taken ~40-55 minutes.

However, the Windows vcpkg build of Tectonic itself failed because of a problem with graphite2:

thread 'main' panicked at 
'failed to load package graphite2 from vcpkg: 
  Could not find library in Vcpkg tree package 
  graphite2 is not installed for vcpkg triplet x64-windows-static', 
  D:\a\1\s\crates\dep_support\src\lib.rs:130:37

Hopefully this is something that can be deal with easily. The logs from building graphite2 here are:

Installing 19/22 graphite2:x64-windows-static-release...
Building graphite2[core]:x64-windows-static-release...
-- [OVERLAY] Loading triplet configuration from: \\?\D:\a\1\s\dist\vcpkg-triplets\x64-windows-static-release.cmake
-- Downloading https://github.com/silnrsi/graphite/archive/92f59dcc52f73ce747f1cdc831579ed2546884aa.tar.gz -> silnrsi-graphite-92f59dcc52f73ce747f1cdc831579ed2546884aa.tar.gz...
-- Extracting source D:/a/1/s/target/vcpkg/downloads/silnrsi-graphite-92f59dcc52f73ce747f1cdc831579ed2546884aa.tar.gz
-- Applying patch disable-tests.patch
-- Using source at D:/a/1/s/target/vcpkg/buildtrees/graphite2/src/d2546884aa-145bc79c0d.clean
-- Found external ninja('1.10.2').
-- Configuring x64-windows-static-release
-- Building x64-windows-static-release-rel
-- Installing: D:/a/1/s/target/vcpkg/packages/graphite2_x64-windows-static-release/share/graphite2/copyright
-- Fixing pkgconfig file: D:/a/1/s/target/vcpkg/packages/graphite2_x64-windows-static-release/lib/pkgconfig/graphite2.pc
-- Using cached msys-mingw-w64-i686-pkg-config-0.29.2-3-any.pkg.tar.zst.
-- Using cached msys-mingw-w64-i686-libwinpthread-git-9.0.0.6373.5be8fcd83-1-any.pkg.tar.zst.
-- Using msys root at D:/a/1/s/target/vcpkg/downloads/tools/msys2/9a1ec3f33446b195
-- Performing post-build validation
-- Performing post-build validation done
Stored binary cache: "C:\Users\VssAdministrator\AppData\Local\vcpkg\archives\50\5071790e1ce98663ca69822b9ac76e199606bf1b5c3c299cf4f7734da9ab8ef8.zip"
Elapsed time to handle graphite2:x64-windows-static-release: 10.81 s

Nothing obviously messed up here; it's the same as the standard build, minus debug variants!

Also note that gperf and icu still seem to build debug variants.

[pkgw]

OK, I think this is working! The Windows vcpkg build completes about twice as quickly as it used to, now. The only thing blocking merger is a new release of cargo-vcpkg that incorporates the overlay-triplets-path functionality.

[pkgw]

OK, well, no cargo-vcpkg release yet, but I think it will be fine to use the Git version until that happens.