Fix fchown and fchmod calls on WASI by gating them behind os(WASI).

Author: kateinoigakukun

schemes/main/swift-foundation/1094.patch …SI-build-of-_copyDirectoryMetadata.patchschemes/main/swift-foundation/1094.patch renamed to schemes/main/swift-foundation/0001-Fix-WASI-build-of-_copyDirectoryMetadata.patch schemes/main/swift-foundation/1094.patch renamed to schemes/main/swift-foundation/0001-Fix-WASI-build-of-_copyDirectoryMetadata.patch

@@ -1,7 +1,7 @@
 From cc9d6a3535122542a28f3cf8eb93feb95e05b0f5 Mon Sep 17 00:00:00 2001
 From: Yuta Saito <[email protected]>
 Date: Fri, 13 Dec 2024 16:09:59 +0000
-Subject: [PATCH] Fix WASI build of `_copyDirectoryMetadata`
+Subject: [PATCH 1/2] Fix WASI build of `_copyDirectoryMetadata`
 
 Extended attributes don't exist in WASI, so we need to exclude the use
 of xattr-related APIs including `flistxattr`.
@@ -10,7 +10,7 @@ of xattr-related APIs including `flistxattr`.
  1 file changed, 2 insertions(+)
 
 diff --git a/Sources/FoundationEssentials/FileManager/FileOperations.swift b/Sources/FoundationEssentials/FileManager/FileOperations.swift
-index 418f5cfb..9567f65d 100644
+index 418f5cf..9567f65 100644
 --- a/Sources/FoundationEssentials/FileManager/FileOperations.swift
 +++ b/Sources/FoundationEssentials/FileManager/FileOperations.swift
 @@ -951,6 +951,7 @@ enum _FileOperations {
@@ -29,3 +29,6 @@ index 418f5cfb..9567f65d 100644
          var statInfo = stat()
          if fstat(srcFD, &statInfo) == 0 {
              // Copy owner/group
+-- 
+2.46.0
+

schemes/main/swift-foundation/0002-Gate-fchown-and-fchmod-calls-behind-os-WASI.patch

@@ -0,0 +1,43 @@
+From 88ddc3cc219262ea2c3d421be0333b8625b4d77c Mon Sep 17 00:00:00 2001
+From: Yuta Saito <[email protected]>
+Date: Sat, 14 Dec 2024 06:48:35 +0000
+Subject: [PATCH 2/2] Gate `fchown` and `fchmod` calls behind `os(WASI)`
+
+They are not available on WASI, so we gate them behind `os(WASI)`.
+---
+ Sources/FoundationEssentials/FileManager/FileOperations.swift | 4 ++++
+ 1 file changed, 4 insertions(+)
+
+diff --git a/Sources/FoundationEssentials/FileManager/FileOperations.swift b/Sources/FoundationEssentials/FileManager/FileOperations.swift
+index 9567f65..49e2c37 100644
+--- a/Sources/FoundationEssentials/FileManager/FileOperations.swift
++++ b/Sources/FoundationEssentials/FileManager/FileOperations.swift
+@@ -980,10 +980,12 @@ enum _FileOperations {
+         #endif
+         var statInfo = stat()
+         if fstat(srcFD, &statInfo) == 0 {
++            #if !os(WASI) // WASI doesn't have fchown for now
+             // Copy owner/group
+             if fchown(dstFD, statInfo.st_uid, statInfo.st_gid) != 0 {
+                 try delegate.throwIfNecessary(errno, srcPath(), dstPath())
+             }
++            #endif
+             
+             // Copy modification date
+             let value = timeval(tv_sec: statInfo.st_mtim.tv_sec, tv_usec: statInfo.st_mtim.tv_nsec / 1000)
+@@ -996,10 +998,12 @@ enum _FileOperations {
+                 }
+             }
+             
++            #if !os(WASI) // WASI doesn't have fchmod for now
+             // Copy permissions
+             if fchmod(dstFD, mode_t(statInfo.st_mode)) != 0 {
+                 try delegate.throwIfNecessary(errno, srcPath(), dstPath())
+             }
++            #endif
+         } else {
+             try delegate.throwIfNecessary(errno, srcPath(), dstPath())
+         }
+-- 
+2.46.0
+