replace use of grep in Windows build utility setup with Select-String

This is a built-in function in PowerShell with equivalent functionality for this
purpose. This change is a step towards removing grep as a build dependency on
Windows. Related to #2069.

diff --git a/windows/bin/setup-build-utilities.ps1 b/windows/bin/setup-build-utilities.ps1
index cf03df3bba46b9b5c3108ff9ca55dd69d32479a9..14b99039bac060f248267738904db53feb7f8c62 100644 (file)
--- a/windows/bin/setup-build-utilities.ps1
+++ b/windows/bin/setup-build-utilities.ps1
@@ -57,7 +57,7 @@ find_or_fallback "diff grep" "$build_utilities_path\GnuWin\bin"
 find_or_fallback "cmake cpack" "$CMAKE_BIN"
 find_or_fallback "msbuild" "$MSBUILD_BIN"
 
-if (-NOT (cpack.exe --help | grep 'CPACK_GENERATOR')) {
+if (-NOT (cpack.exe --help | Select-String 'CPACK_GENERATOR')) {
     echo "Moving $CMAKE_BIN to front of PATH in order to find CMake's cpack"
     $CMAKE_BIN_ESCAPED = echo $CMAKE_BIN | sed 's#\\#\\\\#g'
     $path = (Invoke-Expression 'echo $Env:Path' | sed "s#;$CMAKE_BIN_ESCAPED##")
@@ -65,7 +65,7 @@ if (-NOT (cpack.exe --help | grep 'CPACK_GENERATOR')) {
 }
 
 $ErrorActionPreference = "Continue"
-if (-NOT (sort.exe /? 2>$null | grep "SORT")) {
+if (-NOT (sort.exe /? 2>$null | Select-String "SORT")) {
     $ErrorActionPreference = "Stop"
     echo "Moving C:\WINDOWS\system32 to front of PATH in order to find Windows' sort"
     $path = (Invoke-Expression 'echo $Env:Path' | sed 's#;C:\\WINDOWS\\system32;#;#')
@@ -90,14 +90,14 @@ $script:all_programs.Trim().Split(" ") | ForEach {
 
 # Special checks
 
-if (-NOT (cpack.exe --help | grep 'CPACK_GENERATOR')) {
+if (-NOT (cpack.exe --help | Select-String 'CPACK_GENERATOR')) {
     $exe = (Get-Command cpack.exe 2>$null).Source
     Write-Error -EA Continue "Found an unknown cpack at $exe"
     $exit_status = 1
 }
 
 $ErrorActionPreference = "Continue"
-if (-NOT (sort.exe /? 2>$null | grep "SORT")) {
+if (-NOT (sort.exe /? 2>$null | Select-String "SORT")) {
     $ErrorActionPreference = "Stop"
     $exe = (Get-Command sort.exe 2>$null).Source
     Write-Error -EA Continue "Found an unknown sort at $exe"