Whenever Gento prefix is bing used, any attempt at installing a go package based on `go-module.eclass` will fail while attempting to remove the dependencies folder (AKA "${HOME}"/go/pkg/mod/). The reason lies in this upstream issue: https://github.com/golang/go/issues/27161 This was initially reported here, as a bug with an ebuild. Link: https://bugs.gentoo.org/800872 If this is confirmed to happen on any Gentoo Prefix installation, the recommended solution is to use `-modcachere` as described in the upstream issue. Possibly, by enabling the flag only if it is a prefix. Reproducible: Always Steps to Reproduce: 1. Run Gentoo according to Gentoo Prefix https://wiki.gentoo.org/wiki/Project:Prefix 2. Install a package that depends on go-modules.eclass. For instance, app-shells/fzf: `emerge -v app-shells/fzf` Actual Results: ``` >>> Installing (1 of 1) app-shells/fzf-0.27.2::gentoo Process Process-3: Traceback (most recent call last): File "/home/xxxxx/gentoo/usr/lib/python3.9/site-packages/portage/package/ebuild/prepare_build_dirs.py", line 41, in prepare_build_dirs shutil.rmtree(clean_dir) File "/home/xxxxx/gentoo/usr/lib/python3.9/site-packages/portage/__init__.py", line 231, in __call__ rval = self._func(*wrapped_args, **wrapped_kwargs) File "/home/xxxxx/gentoo/usr/lib/python3.9/shutil.py", line 718, in rmtree _rmtree_safe_fd(fd, path, onerror) File "/home/xxxxx/gentoo/usr/lib/python3.9/shutil.py", line 655, in _rmtree_safe_fd _rmtree_safe_fd(dirfd, fullname, onerror) File "/home/xxxxx/gentoo/usr/lib/python3.9/shutil.py", line 655, in _rmtree_safe_fd _rmtree_safe_fd(dirfd, fullname, onerror) File "/home/xxxxx/gentoo/usr/lib/python3.9/shutil.py", line 655, in _rmtree_safe_fd _rmtree_safe_fd(dirfd, fullname, onerror) [Previous line repeated 3 more times] File "/home/xxxxx/gentoo/usr/lib/python3.9/shutil.py", line 675, in _rmtree_safe_fd onerror(os.unlink, fullname, sys.exc_info()) File "/home/xxxxx/gentoo/usr/lib/python3.9/shutil.py", line 673, in _rmtree_safe_fd os.unlink(entry.name, dir_fd=topfd) PermissionError: [Errno 13] Permission denied: 'grapheme.go' The above exception was the direct cause of the following exception: Traceback (most recent call last): File "/home/xxxxx/gentoo/usr/lib/python3.9/multiprocessing/process.py", line 315, in _bootstrap self.run() File "/home/xxxxx/gentoo/usr/lib/python3.9/multiprocessing/process.py", line 108, in run self._target(*self._args, **self._kwargs) File "/home/xxxxx/gentoo/usr/lib/python3.9/site-packages/portage/util/_async/ForkProcess.py", line 156, in _bootstrap sys.exit(self._run()) File "/home/xxxxx/gentoo/usr/lib/python3.9/site-packages/portage/dbapi/_MergeProcess.py", line 193, in _run rval = mylink.merge(self.pkgloc, self.infloc, File "/home/xxxxx/gentoo/usr/lib/python3.9/site-packages/portage/dbapi/vartree.py", line 1752, in wrapper return f(self, *args, **kwargs) File "/home/xxxxx/gentoo/usr/lib/python3.9/site-packages/portage/dbapi/vartree.py", line 5372, in merge retval = self.treewalk(mergeroot, myroot, inforoot, myebuild, File "/home/xxxxx/gentoo/usr/lib/python3.9/site-packages/portage/dbapi/vartree.py", line 4229, in treewalk prepare_build_dirs(settings=self.settings, cleanup=cleanup) File "/home/xxxxx/gentoo/usr/lib/python3.9/site-packages/portage/package/ebuild/prepare_build_dirs.py", line 53, in prepare_build_dirs _raise_exc(oe) File "/home/xxxxx/gentoo/usr/lib/python3.9/site-packages/portage/util/install_mask.py", line 150, in _raise_exc raise wrapper portage.exception.PermissionDenied: [Errno 13] Permission denied: 'grapheme.go' >>> Failed to install app-shells/fzf-0.27.2, Log file: >>> '/home/xxxxx/gentoo/var/tmp/portage/app-shells/fzf-0.27.2/temp/build.log' ``` Expected Results: Installation successful
I can reproduce this bug on two Prefix installations: - On CentOS 8.4 x86_64 w/ kernel 4.18 - On Ubuntu 20.04 aarch64 w/ kernel 5.11 And with three packages: - net-misc/rclone - net-p2p/syncthing - net-vpn/tailscale
Created attachment 739614 [details, diff] Patch to make the go dependencydirectory writable during the installation ``` diff --git a/eclass/go-module.eclass b/eclass/go-module.eclass index d1e81babf1f..101eee5389f 100644 --- a/eclass/go-module.eclass +++ b/eclass/go-module.eclass @@ -385,7 +385,7 @@ _go-module_src_unpack_verify_gosum() { # This will print 'downloading' messages, but it's accessing content from # the $GOPROXY file:/// URL! einfo "Tidying go.mod/go.sum" - go mod tidy >/dev/null + go mod tidy -modcacherw >/dev/null # This used to call 'go get' to verify by fetching everything from the main # go.mod. However 'go get' also turns out to recursively try to fetch ``` This should fix it. Thanks Chang Liu for his investigation in https://bugs.gentoo.org/800872
*** Bug 800872 has been marked as a duplicate of this bug. ***
The bug has been closed via the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=13e742b871c4a90a7545545cd0a04cc838b938ed commit 13e742b871c4a90a7545545cd0a04cc838b938ed Author: William Hubbs <williamh@gentoo.org> AuthorDate: 2021-09-23 21:09:39 +0000 Commit: William Hubbs <williamh@gentoo.org> CommitDate: 2021-09-23 21:10:23 +0000 go-modules.eclass: allow the module cache to be read/write This allows the modules to be cleaned up on prefix systems. More information is available here: https://github.com/golang/go/issues/27161 I would like to thank Raffaele Spinelli <rafspiny@gmail.com> for the original patch this was based on. Closes: https://bugs.gentoo.org/812977 Closes: https://github.com/gentoo/gentoo/pull/22365 Signed-off-by: William Hubbs <williamh@gentoo.org> eclass/go-module.eclass | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
