[vcpkg] Fix the case of current_path() before use on Windows. (#13537)

* Fix the case of current_path() before use on Windows.

This is a better solution than that I tried in https://github.com/microsoft/vcpkg/pull/13144 -- rather than trying to cannoicalize the path completely, which would destroy symlinks etc; this form  calls FindFirstFile on each path element to get the real case from the filesystem.

Fixes #13105.

(Note the wrong case in the CWD in the prompt, but the correct case in all the output:)

PS C:\DeV\vcPKG> .\vcpkg.exe install curl
Computing installation plan...
The following packages will be built and installed:
    curl[core,non-http,schannel,ssl,sspi,winssl]:x86-windows
  * zlib[core]:x86-windows
Additional packages (*) will be modified to complete this operation.
Detecting compiler hash for triplet x86-windows...
Starting package 1/2: zlib:x86-windows
Building package zlib[core]:x86-windows...
Using cached binary package: C:\Users\billy\AppData\Local\vcpkg/archives\c6\c61dd1bcc23348934c55f4ced77f1e4b0f353394.zipBuilding package zlib[core]:x86-windows... done
Installing package zlib[core]:x86-windows...
Installing package zlib[core]:x86-windows... done
Elapsed time for package zlib:x86-windows: 62.26 ms
Starting package 2/2: curl:x86-windows
Building package curl[core,non-http,schannel,ssl,sspi,winssl]:x86-windows...
Could not locate cached archive: C:\Users\billy\AppData\Local\vcpkg/archives\9f\9fa16d473c9539e9ea7ab3922eff46618f3a4c4b.zip
-- Downloading https://github.com/curl/curl/archive/9d954e49bce3706a9a2efb119ecd05767f0f2a9e.tar.gz...
-- Extracting source C:/Dev/vcpkg/downloads/curl-curl-9d954e49bce3706a9a2efb119ecd05767f0f2a9e.tar.gz
-- Applying patch 0002_fix_uwp.patch
-- Applying patch 0004_nghttp2_staticlib.patch
-- Applying patch 0005_remove_imp_suffix.patch
-- Applying patch 0006_fix_tool_depends.patch
-- Applying patch 0007_disable_tool_export_curl_target.patch
-- Applying patch 0009_fix_openssl_config.patch
-- Applying patch 0010_fix_othertests_cmake.patch
-- Applying patch 0011_fix_static_build.patch
-- Using source at C:/Dev/vcpkg/buildtrees/curl/src/767f0f2a9e-91d24adee1.clean
-- Configuring x86-windows
-- Building x86-windows-dbg
-- Building x86-windows-rel
-- Installing: C:/Dev/vcpkg/packages/curl_x86-windows/share/curl/curl-config
-- Installing: C:/Dev/vcpkg/packages/curl_x86-windows/share/curl/vcpkg-cmake-wrapper.cmake
-- Installing: C:/Dev/vcpkg/packages/curl_x86-windows/share/curl/copyright
-- Performing post-build validation
-- Performing post-build validation done
Stored binary cache: C:\Users\billy\AppData\Local\vcpkg/archives\9f\9fa16d473c9539e9ea7ab3922eff46618f3a4c4b.zip
Building package curl[core,non-http,schannel,ssl,sspi,winssl]:x86-windows... done
Installing package curl[core,non-http,schannel,ssl,sspi,winssl]:x86-windows...
Installing package curl[core,non-http,schannel,ssl,sspi,winssl]:x86-windows... done
Elapsed time for package curl:x86-windows: 1.299 min

Total elapsed time: 1.33 min

The package curl:x86-windows provides CMake targets:

    find_package(CURL CONFIG REQUIRED)
    target_link_libraries(main PRIVATE CURL::libcurl)

PS C:\DeV\vcPKG>

* Fix *nix builds.

* PR feedback.

* Update toolsrc/src/vcpkg/base/files.cpp

Co-authored-by: ras0219 <533828+ras0219@users.noreply.github.com>

1 files changed, 56 insertions, 0 deletions

diff --git a/toolsrc/src/vcpkg-test/files.cpp b/toolsrc/src/vcpkg-test/files.cpp
index a8c7c2ba2..429a4ba15 100644
--- a/toolsrc/src/vcpkg-test/files.cpp
+++ b/toolsrc/src/vcpkg-test/files.cpp
@@ -194,6 +194,62 @@ TEST_CASE ("remove all", "[files]")
     CHECK_EC_ON_FILE(temp_dir, ec);
 }
 
+#if defined(_WIN32)
+TEST_CASE ("win32_fix_path_case", "[files]")
+{
+    using vcpkg::Files::win32_fix_path_case;
+
+    // This test assumes that the Windows directory is C:\Windows
+
+    CHECK(win32_fix_path_case(L"") == L"");
+
+    CHECK(win32_fix_path_case(L"C:") == L"C:");
+    CHECK(win32_fix_path_case(L"c:") == L"C:");
+    CHECK(win32_fix_path_case(L"C:/") == L"C:\\");
+    CHECK(win32_fix_path_case(L"C:\\") == L"C:\\");
+    CHECK(win32_fix_path_case(L"c:\\") == L"C:\\");
+    CHECK(win32_fix_path_case(L"C:\\WiNdOws") == L"C:\\Windows");
+    CHECK(win32_fix_path_case(L"c:\\WiNdOws\\") == L"C:\\Windows\\");
+    CHECK(win32_fix_path_case(L"C://///////WiNdOws") == L"C:\\Windows");
+    CHECK(win32_fix_path_case(L"c:\\/\\/WiNdOws\\/") == L"C:\\Windows\\");
+
+    auto& fs = vcpkg::Files::get_real_filesystem();
+    auto original_cwd = fs.current_path(VCPKG_LINE_INFO);
+    fs.current_path(L"C:\\", VCPKG_LINE_INFO);
+    CHECK(win32_fix_path_case(L"\\") == L"\\");
+    CHECK(win32_fix_path_case(L"\\/\\WiNdOws") == L"\\Windows");
+    CHECK(win32_fix_path_case(L"\\WiNdOws") == L"\\Windows");
+    CHECK(win32_fix_path_case(L"\\WiNdOws") == L"\\Windows");
+    CHECK(win32_fix_path_case(L"c:WiNdOws") == L"C:Windows");
+    CHECK(win32_fix_path_case(L"c:WiNdOws/system32") == L"C:Windows\\System32");
+    fs.current_path(original_cwd, VCPKG_LINE_INFO);
+
+    fs.create_directories("SuB/Dir/Ectory", VCPKG_LINE_INFO);
+    CHECK(win32_fix_path_case(L"sub") == L"SuB");
+    CHECK(win32_fix_path_case(L"SUB") == L"SuB");
+    CHECK(win32_fix_path_case(L"sub/") == L"SuB\\");
+    CHECK(win32_fix_path_case(L"sub/dir") == L"SuB\\Dir");
+    CHECK(win32_fix_path_case(L"sub/dir/") == L"SuB\\Dir\\");
+    CHECK(win32_fix_path_case(L"sub/dir/ectory") == L"SuB\\Dir\\Ectory");
+    CHECK(win32_fix_path_case(L"sub/dir/ectory/") == L"SuB\\Dir\\Ectory\\");
+    fs.remove_all("SuB", VCPKG_LINE_INFO);
+
+    CHECK(win32_fix_path_case(L"//nonexistent_server\\nonexistent_share\\") ==
+          L"\\\\nonexistent_server\\nonexistent_share\\");
+    CHECK(win32_fix_path_case(L"\\\\nonexistent_server\\nonexistent_share\\") ==
+          L"\\\\nonexistent_server\\nonexistent_share\\");
+    CHECK(win32_fix_path_case(L"\\\\nonexistent_server\\nonexistent_share") ==
+          L"\\\\nonexistent_server\\nonexistent_share");
+
+    CHECK(win32_fix_path_case(L"///three_slashes_not_a_server\\subdir\\") == L"\\three_slashes_not_a_server\\subdir\\");
+
+    CHECK(win32_fix_path_case(L"\\??\\c:\\WiNdOws") == L"\\??\\c:\\WiNdOws");
+    CHECK(win32_fix_path_case(L"\\\\?\\c:\\WiNdOws") == L"\\\\?\\c:\\WiNdOws");
+    CHECK(win32_fix_path_case(L"\\\\.\\c:\\WiNdOws") == L"\\\\.\\c:\\WiNdOws");
+    CHECK(win32_fix_path_case(L"c:\\/\\/Nonexistent\\/path/here") == L"C:\\Nonexistent\\path\\here");
+}
+#endif // _WIN32
+
 #if defined(CATCH_CONFIG_ENABLE_BENCHMARKING)
 TEST_CASE ("remove all -- benchmarks", "[files][!benchmark]")
 {