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Merge pull request #428 from MSoegtropIMC/windows-enable-long-path
Windows: enable long path support in cygwin MinGW toolchain and Windows registry
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| Original file line number | Diff line number | Diff line change |
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| #!/bin/bash | ||
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| ###################### COPYRIGHT/COPYLEFT ###################### | ||
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| # (C) 2024 Michael Soegtrop | ||
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| # Released to the public under the | ||
| # Creative Commons CC0 1.0 Universal License | ||
| # See https://creativecommons.org/publicdomain/zero/1.0/legalcode.txt | ||
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| ###################### USER CHOICES ##################### | ||
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| # Enable long paths in Windows | ||
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| if [[ "${COQREGTESTING:-n}" == y ]] | ||
| then | ||
| ANSWER=y | ||
| else | ||
| cat <<EOH | ||
| ========================= WINDOWS LONG PATH SUPPORT ========================= | ||
| By default on Windows the length of file paths is restricted to 259 character. | ||
| This is not sufficient for building Coq Platform, so long filename support | ||
| must be enabled. | ||
| This enablement is done in two steps: | ||
| - enable it in each executable built by Coq Platform | ||
| - enable it in the Windows registry | ||
| Both criteria must be fullfilled for an executable in order to enable long | ||
| path support. For this reason it is not dangerous to enable it in the | ||
| registry - applictions which do not support it do not enable it in their | ||
| manifests. | ||
| The setup has detected that long paths in not enabled in the registry. | ||
| If you want to enable it automatically now, select Y - otherwise C. | ||
| ========================= WINDOWS LONG PATH SUPPORT ========================= | ||
| EOH | ||
| ask_user_opt1_cancel "Enable long path support in registry (y)" yY "enable long paths in registry" | ||
| fi |
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| LANGUAGE 0, 0 | ||
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| /* CREATEPROCESS_MANIFEST_RESOURCE_ID RT_MANIFEST MOVEABLE PURE DISCARDABLE */ | ||
| 1 24 MOVEABLE PURE DISCARDABLE | ||
| BEGIN | ||
| "<?xml version=""1.0"" encoding=""UTF-8"" standalone=""yes""?>\n" | ||
| "<assembly xmlns=""urn:schemas-microsoft-com:asm.v1"" manifestVersion=""1.0"" xmlns:asmv3=""urn:schemas-microsoft-com:asm.v3"">\n" | ||
| " <trustInfo xmlns=""urn:schemas-microsoft-com:asm.v3"">\n" | ||
| " <security>\n" | ||
| " <requestedPrivileges>\n" | ||
| " <requestedExecutionLevel level=""asInvoker""/>\n" | ||
| " </requestedPrivileges>\n" | ||
| " </security>\n" | ||
| " </trustInfo>\n" | ||
| " <compatibility xmlns=""urn:schemas-microsoft-com:compatibility.v1"">\n" | ||
| " <application>\n" | ||
| " <!--The ID below indicates application support for Windows Vista -->\n" | ||
| " <supportedOS Id=""{e2011457-1546-43c5-a5fe-008deee3d3f0}""/>\n" | ||
| " <!--The ID below indicates application support for Windows 7 -->\n" | ||
| " <supportedOS Id=""{35138b9a-5d96-4fbd-8e2d-a2440225f93a}""/>\n" | ||
| " <!--The ID below indicates application support for Windows 8 -->\n" | ||
| " <supportedOS Id=""{4a2f28e3-53b9-4441-ba9c-d69d4a4a6e38}""/>\n" | ||
| " <!--The ID below indicates application support for Windows 8.1 -->\n" | ||
| " <supportedOS Id=""{1f676c76-80e1-4239-95bb-83d0f6d0da78}""/> \n" | ||
| " <!--The ID below indicates application support for Windows 10 -->\n" | ||
| " <supportedOS Id=""{8e0f7a12-bfb3-4fe8-b9a5-48fd50a15a9a}""/> \n" | ||
| " </application>\n" | ||
| " </compatibility>\n" | ||
| " <asmv3:application>\n" | ||
| " <asmv3:windowsSettings xmlns=""http://schemas.microsoft.com/SMI/2016/WindowsSettings"">\n" | ||
| " <longPathAware>true</longPathAware>\n" | ||
| " </asmv3:windowsSettings>\n" | ||
| " </asmv3:application>\n" | ||
| "</assembly>\n" | ||
| END |
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| # Background | ||
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| In order to allow long paths in Windows, two conditions must be met | ||
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| - this must be enabled in the registry | ||
| - the manifest of the executables must state that they do support this | ||
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| See | ||
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| https://learn.microsoft.com/en-us/windows/win32/fileio/maximum-file-path-limitation?tabs=registry#enable-long-paths-in-windows-10-version-1607-and-later | ||
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| # Default Manifest | ||
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| This default manifest enables long paths on Windows for everything compiled / linked after it has been installed (assuming the registry seeting is set, see eblow) | ||
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| The manifest is inspired by | ||
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| https://discuss.ocaml.org/t/ocaml-on-windows-the-long-paths-issue/13283 | ||
| and | ||
| https://github.com/ManasJayanth/windows-default-manifest/ | ||
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| This file is not taken from there, though, it is a merge of the (FSFAP license) file in | ||
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| https://cygwin.com/packages/summary/windows-default-manifest-src.html | ||
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| ``` | ||
| LANGUAGE 0, 0 | ||
| /* CREATEPROCESS_MANIFEST_RESOURCE_ID RT_MANIFEST MOVEABLE PURE DISCARDABLE */ | ||
| 1 24 MOVEABLE PURE DISCARDABLE | ||
| BEGIN | ||
| "<?xml version=""1.0"" encoding=""UTF-8"" standalone=""yes""?>\n" | ||
| "<assembly xmlns=""urn:schemas-microsoft-com:asm.v1"" manifestVersion=""1.0"">\n" | ||
| " <trustInfo xmlns=""urn:schemas-microsoft-com:asm.v3"">\n" | ||
| " <security>\n" | ||
| " <requestedPrivileges>\n" | ||
| " <requestedExecutionLevel level=""asInvoker""/>\n" | ||
| " </requestedPrivileges>\n" | ||
| " </security>\n" | ||
| " </trustInfo>\n" | ||
| " <compatibility xmlns=""urn:schemas-microsoft-com:compatibility.v1"">\n" | ||
| " <application>\n" | ||
| " <!--The ID below indicates application support for Windows Vista -->\n" | ||
| " <supportedOS Id=""{e2011457-1546-43c5-a5fe-008deee3d3f0}""/>\n" | ||
| " <!--The ID below indicates application support for Windows 7 -->\n" | ||
| " <supportedOS Id=""{35138b9a-5d96-4fbd-8e2d-a2440225f93a}""/>\n" | ||
| " <!--The ID below indicates application support for Windows 8 -->\n" | ||
| " <supportedOS Id=""{4a2f28e3-53b9-4441-ba9c-d69d4a4a6e38}""/>\n" | ||
| " <!--The ID below indicates application support for Windows 8.1 -->\n" | ||
| " <supportedOS Id=""{1f676c76-80e1-4239-95bb-83d0f6d0da78}""/> \n" | ||
| " <!--The ID below indicates application support for Windows 10 -->\n" | ||
| " <supportedOS Id=""{8e0f7a12-bfb3-4fe8-b9a5-48fd50a15a9a}""/> \n" | ||
| " </application>\n" | ||
| " </compatibility>\n" | ||
| "</assembly>\n" | ||
| END | ||
| ``` | ||
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| and the example here: | ||
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| https://learn.microsoft.com/en-us/windows/win32/sbscs/application-manifests#longpathaware | ||
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| ## Build default manifest | ||
| ``` | ||
| x86_64-w64-mingw32-windres -F pe-x86-64 windows/default-manifest.rc -o windows/default-manifest.o | ||
| cp windows/default-manifest.o /usr/x86_64-w64-mingw32/sys-root/mingw/lib/default-manifest.o | ||
| ``` | ||
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| # Regsity setting | ||
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| See https://learn.microsoft.com/en-us/windows/win32/fileio/maximum-file-path-limitation?tabs=registry#enable-long-paths-in-windows-10-version-1607-and-later | ||
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| ``` | ||
| Windows Registry Editor Version 5.00 | ||
| [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\FileSystem] | ||
| "LongPathsEnabled"=dword:00000001 | ||
| ``` | ||
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| To install this file run on the cygwin prompt: | ||
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| ``` | ||
| cygstart --action=runas REG IMPORT long-path.reg | ||
| ``` | ||
| **THIS DOES NOT WORK!** | ||
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| or alternatively | ||
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| ``` | ||
| cygstart --action=runas REG ADD 'HKLM\SYSTEM\CurrentControlSet\Control\FileSystem' /v LongPathsEnabled /t REG_DWORD /d 1 /f | ||
| ``` | ||
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| Löschen des Schlüssels | ||
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| ``` | ||
| cygstart --action=runas REG DELETE 'HKLM\SYSTEM\CurrentControlSet\Control\FileSystem' /v LongPathsEnabled | ||
| ``` | ||
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| To query on the cygwin prompt run: | ||
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| ``` | ||
| REG QUERY 'HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\FileSystem' /v LongPathsEnabled | ||
| FEHLER: Der angegebene Registrierungsschlüssel bzw. Wert wurde nicht gefunden. | ||
| HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\FileSystem | ||
| LongPathsEnabled REG_DWORD 0x1 | ||
| ``` |