Feature request: Support Pacman 6

[huyz-git]

Is your feature request related to a problem? Please describe.
Since 2020.5 pacman-git adds an useful feature: parallel download. It would be great if yay can support pacman-git.

Describe the solution you'd like
yay cannot be built against pacman-git. It seems that pacman-git has changed some ABI in alpm, this prevents yay from building against pacman-git.

Describe alternatives you've considered
Most features of yay-bin or yay built against pacman works on pacman-git. The only thing I found that doesn't work is the -Ss command.

Additional context
If I run yay-bin with pacman-git, it will SIGSEGV when using -Ss command:

$ curl -L -O https://github.com/Jguer/yay/releases/download/v10.1.0/yay_10.1.0_x86_64.tar.gz
$ tar xvf ./yay_10.1.0_x86_64.tar.gz
$ cd yay_10.1.0_x86_64
$ ./yay -Ss something
unexpected fault address 0xffffffff
fatal error: fault
[signal SIGSEGV: segmentation violation code=0x1 addr=0xffffffff pc=0x558cb7010279]

goroutine 1 [running]:
runtime.throw(0x558cb71dc3fd, 0x5)
        runtime/panic.go:1116 +0x74 fp=0xc0000d9a08 sp=0xc0000d99d8 pc=0x558cb6ec1874
runtime.sigpanic()
        runtime/signal_unix.go:727 +0x405 fp=0xc0000d9a38 sp=0xc0000d9a08 pc=0x558cb6ed7365
github.com/Jguer/go-alpm/v2.(*list).forEach(0xffffffff, 0xc0000d9a80, 0x558cb700d24f, 0xc000680000)
        github.com/Jguer/go-alpm/v2@v2.0.1/types.go:113 +0x39 fp=0xc0000d9a60 sp=0xc0000d9a38 pc=0x558cb7010279
github.com/Jguer/go-alpm/v2.PackageList.ForEach(0xffffffff, 0x558cb91f4910, 0xc0000fc160, 0xffffff01, 0xc0000fc160)
        github.com/Jguer/go-alpm/v2@v2.0.1/package.go:48 +0x69 fp=0xc0000d9ab0 sp=0xc0000d9a60 pc=0x558cb700e429
github.com/Jguer/go-alpm/v2.(*PackageList).ForEach(0xc0000fc140, 0xc0000fc160, 0x1, 0x1)
        <autogenerated>:1 +0x51 fp=0xc0000d9ae8 sp=0xc0000d9ab0 pc=0x558cb70158f1
github.com/Jguer/yay/v10/pkg/db/ialpm.(*AlpmExecutor).SyncPackages.func1(0x558cb7304260, 0xc000338010, 0xc0000d9bf0, 0x558cb6e99470)
        github.com/Jguer/yay/v10/pkg/db/ialpm/alpm.go:326 +0x164 fp=0xc0000d9b40 sp=0xc0000d9ae8 pc=0x558cb71b0404
github.com/Jguer/go-alpm/v2.DBList.ForEach.func1(0x558cb9211b50, 0x0, 0x7f3b5592f438)
        github.com/Jguer/go-alpm/v2@v2.0.1/db.go:36 +0x75 fp=0xc0000d9b80 sp=0xc0000d9b40 pc=0x558cb70109b5
github.com/Jguer/go-alpm/v2.(*list).forEach(0x558cb920f960, 0xc0000d9bc8, 0xc0001ae910, 0xc000680000)
        github.com/Jguer/go-alpm/v2@v2.0.1/types.go:113 +0x4a fp=0xc0000d9ba8 sp=0xc0000d9b80 pc=0x558cb701028a
github.com/Jguer/go-alpm/v2.DBList.ForEach(0x558cb920f960, 0x558cb91f4910, 0xc000013740, 0x558cb7518401, 0xc000013740)
        github.com/Jguer/go-alpm/v2@v2.0.1/db.go:35 +0x69 fp=0xc0000d9bf8 sp=0xc0000d9ba8 pc=0x558cb700c5c9
github.com/Jguer/go-alpm/v2.(*DBList).ForEach(0xc0001ae900, 0xc000013740, 0x1, 0xc00012fc70)
        <autogenerated>:1 +0x51 fp=0xc0000d9c30 sp=0xc0000d9bf8 pc=0x558cb7014f91
github.com/Jguer/yay/v10/pkg/db/ialpm.(*AlpmExecutor).SyncPackages(0xc0001b8270, 0xc0001ae910, 0x1, 0x1, 0x558cb75184b8, 0xc00012fcd0, 0x558cb6ecbfca)
        github.com/Jguer/yay/v10/pkg/db/ialpm/alpm.go:319 +0xb0 fp=0xc0000d9c68 sp=0xc0000d9c30 pc=0x558cb71ae330
main.queryRepo(0xc0001ae910, 0x1, 0x1, 0x558cb7305460, 0xc0001b8270, 0x4c4, 0x63f, 0x0)
        github.com/Jguer/yay/v10/query.go:244 +0x5b fp=0xc0000d9cc8 sp=0xc0000d9c68 pc=0x558cb71d245b
main.syncSearch(0xc0001ae910, 0x1, 0x1, 0x558cb7305460, 0xc0001b8270, 0xc0001ae900, 0x0)
        github.com/Jguer/yay/v10/query.go:160 +0x165 fp=0xc0000d9d80 sp=0xc0000d9cc8 pc=0x558cb71d18e5
main.handleSync(0xc00012ff28, 0x558cb7305460, 0xc0001b8270, 0x1, 0xffffffffffffffff)
        github.com/Jguer/yay/v10/cmd.go:259 +0x174 fp=0xc0000d9e38 sp=0xc0000d9d80 pc=0x558cb71b4714
main.handleCmd(0xc00012ff28, 0x558cb7305460, 0xc0001b8270, 0x0, 0x301)
        github.com/Jguer/yay/v10/cmd.go:165 +0x14e fp=0xc0000d9eb0 sp=0xc0000d9e38 pc=0x558cb71b2f8e
main.main()
        github.com/Jguer/yay/v10/main.go:130 +0x46a fp=0xc0000d9f88 sp=0xc0000d9eb0 pc=0x558cb71cb0aa
runtime.main()
        runtime/proc.go:204 +0x209 fp=0xc0000d9fe0 sp=0xc0000d9f88 pc=0x558cb6ec4089
runtime.goexit()
        runtime/asm_amd64.s:1374 +0x1 fp=0xc0000d9fe8 sp=0xc0000d9fe0 pc=0x558cb6ef6321

goroutine 28 [IO wait]:
internal/poll.runtime_pollWait(0x7f3b2c7790b8, 0x72, 0x558cb72fb7e0)
        runtime/netpoll.go:220 +0x65
internal/poll.(*pollDesc).wait(0xc000146318, 0x72, 0x558cb72fb700, 0x558cb74ad9a0, 0x0)
        internal/poll/fd_poll_runtime.go:87 +0x47
internal/poll.(*pollDesc).waitRead(...)
        internal/poll/fd_poll_runtime.go:92
internal/poll.(*FD).Read(0xc000146300, 0xc000280000, 0xd85b, 0xd85b, 0x0, 0x0, 0x0)
        internal/poll/fd_unix.go:159 +0x1a5
net.(*netFD).Read(0xc000146300, 0xc000280000, 0xd85b, 0xd85b, 0x203000, 0xc, 0xc000288031)
        net/fd_posix.go:55 +0x51
net.(*conn).Read(0xc000094000, 0xc000280000, 0xd85b, 0xd85b, 0x0, 0x0, 0x0)
        net/net.go:182 +0x90
crypto/tls.(*atLeastReader).Read(0xc0002c2500, 0xc000280000, 0xd85b, 0xd85b, 0x582a, 0xc00028802c, 0xc00012b730)
        crypto/tls/conn.go:779 +0x62
bytes.(*Buffer).ReadFrom(0xc000096280, 0x558cb72fa640, 0xc0002c2500, 0x558cb6e97127, 0x558cb7298960, 0x558cb72dece0)
        bytes/buffer.go:204 +0xbb
crypto/tls.(*Conn).readFromUntil(0xc000096000, 0x558cb72fa960, 0xc000094000, 0x5, 0xc000094000, 0xc000288031)
        crypto/tls/conn.go:801 +0xf3
crypto/tls.(*Conn).readRecordOrCCS(0xc000096000, 0x0, 0x0, 0xc00012bd38)
        crypto/tls/conn.go:608 +0x125
crypto/tls.(*Conn).readRecord(...)
        crypto/tls/conn.go:576
crypto/tls.(*Conn).Read(0xc000096000, 0xc000132000, 0x1000, 0x1000, 0x0, 0x0, 0x0)
        crypto/tls/conn.go:1252 +0x15f
bufio.(*Reader).Read(0xc00009a0c0, 0xc0004318b8, 0x9, 0x9, 0xc00012bd38, 0x558cb72f1d00, 0x558cb713920d)
        bufio/bufio.go:227 +0x224
io.ReadAtLeast(0x558cb72fa520, 0xc00009a0c0, 0xc0004318b8, 0x9, 0x9, 0x9, 0xc000064060, 0x0, 0x558cb72fa7e0)
        io/io.go:314 +0x89
io.ReadFull(...)
        io/io.go:333
net/http.http2readFrameHeader(0xc0004318b8, 0x9, 0x9, 0x558cb72fa520, 0xc00009a0c0, 0x0, 0x558c00000000, 0xc0000129f0, 0x0)
        net/http/h2_bundle.go:1477 +0x89
net/http.(*http2Framer).ReadFrame(0xc000431880, 0xc0000129f0, 0x0, 0x0, 0x0)
        net/http/h2_bundle.go:1735 +0xa5
net/http.(*http2clientConnReadLoop).run(0xc00012bfa8, 0x0, 0x0)
        net/http/h2_bundle.go:8240 +0x8f
net/http.(*http2ClientConn).readLoop(0xc000582c00)
        net/http/h2_bundle.go:8168 +0x71
created by net/http.(*http2Transport).newClientConn
        net/http/h2_bundle.go:7173 +0x66e

yay fails to build with pacman-git:

$ git clone https://github.com/Jguer/yay
$ cd yay
$ make
go build -v -trimpath -mod=readonly -modcacherw -ldflags '-s -w  -X "main.yayVersion=10.0.0" -X "main.localePath=/usr/local/share/locale/"' -buildmode=pie -o yay
go: downloading github.com/Morganamilo/go-srcinfo v1.0.0
go: downloading github.com/leonelquinteros/gotext v1.4.0
go: downloading golang.org/x/crypto v0.0.0-20200930160638-afb6bcd081ae
go: downloading github.com/Morganamilo/go-pacmanconf v0.0.0-20180910220353-9c5265e1b14f
go: downloading github.com/mikkeloscar/aur v0.0.0-20200113170522-1cb4e2949656
go: downloading golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f
go: downloading github.com/Jguer/go-alpm/v2 v2.0.1
go: downloading gopkg.in/yaml.v3 v3.0.0-20200615113413-eeeca48fe776
runtime/cgo
github.com/Jguer/go-alpm/v2
net
vendor/golang.org/x/net/http/httpproxy
net/textproto
crypto/x509
vendor/golang.org/x/net/http/httpguts
crypto/tls
net/http/httptrace
net/http
# github.com/Jguer/go-alpm/v2
/home/abc/go/pkg/mod/github.com/!jguer/go-alpm/v2@v2.0.1/db.go:165:35: cannot convert _Cfunc_alpm_db_search(db.ptr, needles) (type _Ctype_int) to type unsafe.Pointer
/home/abc/go/pkg/mod/github.com/!jguer/go-alpm/v2@v2.0.1/db.go:165:52: not enough arguments in call to _Cfunc_alpm_db_search
        have (*_Ctype_struct___alpm_db_t, *_Ctype_struct___alpm_list_t)
        want (*_Ctype_struct___alpm_db_t, *_Ctype_struct___alpm_list_t, **_Ctype_struct___alpm_list_t)
net/http/httptest
github.com/Jguer/yay/v10/pkg/settings/exe
github.com/Jguer/yay/v10/pkg/vcs
github.com/Jguer/yay/v10/pkg/settings
github.com/Jguer/yay/v10/pkg/news
make: *** [Makefile:127：yay] Error 2

[Morganamilo]

I used to maintain the pacman-git branch here and on go-alpm. Honestly it's super annoying keeping them rebased against master. I wish go had #ifdefs.

[bpierre]

The first alpha of Pacman 6 has been released: http://allanmcrae.com/2020/12/pacman-6-0-0alpha1/

Should this issue be renamed to “Support Pacman 6”?

[kageurufu]

My locally built copy of yay is working fine with the pacman 6.0.0-alpha1 right now

EDIT: Nevermind, segfault when searching for a package. yay -Syu worked earlier

[Jguer]

yay-git now works with both pacman 5 and 6. A recompile is needed though.

So next question is how to detect pacman update to add yay to the update list or how to make sure they get updated together

[grandchild]

Bump the pkgrel for yay and yay-git when pacman-6 gets released? That wouldn't work for people on testing though, but it's the easy way out.

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[lucki1000]

After upgrading pacman to version 6, If got this errror while using yay:

yay -Syua 
yay: error while loading shared libraries: libalpm.so.12: cannot open shared object file: No such file or directory

but since i've updated pacman i only have libalpm.so.13

[kageurufu]

Rebuild yay after upgrading pacman.

[lucki1000]

Worked, thanks

[Jguer]

Closed in favor of #1519