Working through Go projects #281

v1gnesh · 2023-05-01T05:51:14Z

v1gnesh
May 1, 2023
Collaborator

Kicking off from Q/A: Which software packages do you want to see ported to z/OS? #23, I've tried building direnv and caddy.

To add the findings into wharf, so that these issues are centrally documented & auto-sorted, here are the build errors I get.

caddy

# github.com/dgraph-io/badger/y
/v1g/pkg/mod/github.com/dgraph-io/[email protected]/y/file_dsync.go:24:26: undefined: unix.O_DSYNC
# github.com/dgraph-io/badger/v2/y
/v1g/pkg/mod/github.com/dgraph-io/badger/[email protected]/y/file_dsync.go:24:26: undefined: unix.O_DSYNC
# github.com/chzyer/readline
/v1g/pkg/mod/github.com/chzyer/[email protected]/utils.go:81:29: undefined: State
/v1g/pkg/mod/github.com/chzyer/[email protected]/utils.go:241:9: undefined: State
/v1g/pkg/mod/github.com/chzyer/[email protected]/operation.go:234:4: undefined: ClearScreen
/v1g/pkg/mod/github.com/chzyer/[email protected]/readline.go:129:20: undefined: GetScreenWidth
/v1g/pkg/mod/github.com/chzyer/[email protected]/readline.go:132:22: undefined: DefaultIsTerminal
/v1g/pkg/mod/github.com/chzyer/[email protected]/readline.go:142:26: undefined: DefaultOnWidthChanged
/v1g/pkg/mod/github.com/chzyer/[email protected]/remote.go:324:2: undefined: DefaultOnWidthChanged
/v1g/pkg/mod/github.com/chzyer/[email protected]/remote.go:346:17: undefined: GetScreenWidth
/v1g/pkg/mod/github.com/chzyer/[email protected]/remote.go:362:16: undefined: DefaultIsTerminal
/v1g/pkg/mod/github.com/chzyer/[email protected]/terminal.go:51:2: undefined: SuspendMe
/v1g/pkg/mod/github.com/chzyer/[email protected]/terminal.go:51:2: too many errors

v1gnesh · 2023-05-02T14:35:39Z

v1gnesh
May 2, 2023
Collaborator Author

direnv

This actually builds. However, make test says:

shellcheck stdlib.sh
bash: line 1: shellcheck: command not found
make: *** [GNUmakefile:112: test-shellcheck] Error 127

EDIT: ShellCheck is written in Haskell, and building it requires something called Cabal.
Looks better after commenting out irrelevant (to us) tests from the GNUmakefile like this:

tests = \
				test-stdlib \
				test-bash \
				test-go \
				test-go-fmt
#				test-go-lint \
#				test-elvish \
#				test-fish \
#				test-tcsh \
#				test-zsh 
#				test-shellcheck \

I've submitted a PR to direnv to skip these tests for zOS (only zOS responds to uname with OS/390. LoZ says Linux).

0 replies

v1gnesh · 2023-05-04T15:33:03Z

v1gnesh
May 4, 2023
Collaborator Author

Terraform

Surprisingly not a lot to fix..
chzyer/readline errors are the same as with caddy above.
wharf already handles EBADFD.

# github.com/spf13/afero
/v1g/gopath/pkg/mod/github.com/spf13/[email protected]/const_win_unix.go:25:23: undefined: syscall.EBADFD
# github.com/bgentry/speakeasy
/v1g/gopath/pkg/mod/github.com/bgentry/[email protected]/speakeasy.go:23:18: undefined: getPassword
# github.com/chzyer/readline
/v1g/gopath/pkg/mod/github.com/chzyer/[email protected]/utils.go:81:29: undefined: State
/v1g/gopath/pkg/mod/github.com/chzyer/[email protected]/utils.go:241:9: undefined: State
/v1g/gopath/pkg/mod/github.com/chzyer/[email protected]/operation.go:234:4: undefined: ClearScreen
/v1g/gopath/pkg/mod/github.com/chzyer/[email protected]/readline.go:129:20: undefined: GetScreenWidth
/v1g/gopath/pkg/mod/github.com/chzyer/[email protected]/readline.go:132:22: undefined: DefaultIsTerminal
/v1g/gopath/pkg/mod/github.com/chzyer/[email protected]/readline.go:142:26: undefined: DefaultOnWidthChanged
/v1g/gopath/pkg/mod/github.com/chzyer/[email protected]/remote.go:324:2: undefined: DefaultOnWidthChanged
/v1g/gopath/pkg/mod/github.com/chzyer/[email protected]/remote.go:346:17: undefined: GetScreenWidth
/v1g/gopath/pkg/mod/github.com/chzyer/[email protected]/remote.go:362:16: undefined: DefaultIsTerminal
/v1g/gopath/pkg/mod/github.com/chzyer/[email protected]/terminal.go:51:2: undefined: SuspendMe
/v1g/gopath/pkg/mod/github.com/chzyer/[email protected]/terminal.go:51:2: too many errors

1 reply

v1gnesh May 14, 2023
Collaborator Author

Ok, maybe a lot to fix.

Reproducing

Follow Basic steps to port a dependent package.

Then, the following had to be done to get terraform to build.
Build tags had to be updated in these files within $GOPATH, where these dependencies are kept.
No changes to the main terraform repo yet.

+build !zos -- https://github.com/apparentlymart/go-userdirs/blob/master/userdirs/app_stub.go
+build zos  -- https://github.com/apparentlymart/go-userdirs/blob/master/userdirs/app_unix.go
+build zos  -- https://github.com/chzyer/readline/blob/master/term_nosyscall6.go
+build zos  -- https://github.com/spf13/afero/blob/master/const_bsds.go
+build !zos -- https://github.com/spf13/afero/blob/master/const_win_unix.go
+build zos  -- https://github.com/bgentry/speakeasy/blob/master/speakeasy_unix.go
+build zos  -- https://github.com/chzyer/readline/blob/master/term.go
+build zos  -- https://github.com/chzyer/readline/blob/master/utils_unix.go

I think, after an IBM gopher confirms the above are correct, PRs can be sent with these build tags to these repos.
Then, we can update the indirect require() block in go.mod to make it pick the latest.

Tests

93% of the total 123 tests are passing.
These fail:

FAIL: TestApply_destroyLockedState (155.13s)             /terraform/internal/command/apply_destroy_test.go
FAIL: TestApply_lockedState (132.00s)	                 /terraform/internal/command/apply_test.go
FAIL: TestInit_backendMigrateWhileLocked (134.75s)	 /terraform/internal/command/init_test.go
FAIL: TestLoadLocksFromFileAbsent (0.00s)	         /terraform/internal/depsfile/locks_file_test.go
FAIL: TestPackageHashAuthentication_failure (0.00s)      /terraform/internal/getproviders/package_authentication_test.go
FAIL: TestArchiveChecksumAuthentication_failure (0.00s)  /terraform/internal/getproviders/package_authentication_test.go
FAIL: TestExecutableFile (0.00s)	                 /terraform/internal/providercache/cached_provider_test.go
FAIL: TestFilesystemLocks (60.48s)	                 /terraform/internal/states/statemgr/filesystem_test.go

The full log file looks quite nasty. Can forward if anyone's interested 🥲

This also showed up in the tests:

# github.com/creack/pty
/v1g/gopath/pkg/mod/github.com/creack/pty@v1.1.18/ioctl.go:14:21: undefined: syscall.Syscall

Problem is, creack/pty implements a wrapper for ioctl. But go on zos itself is doing this and only surfacing a few syscalls.
So have to figure out if the syscall creak/pty wants is accessible in zos.

v1gnesh · 2023-05-05T04:49:16Z

v1gnesh
May 5, 2023
Collaborator Author

chezmoi

# github.com/muesli/termenv
/v1g/gopath/pkg/mod/github.com/muesli/[email protected]/output.go:143:17: o.foregroundColor undefined (type *Output has no field or method foregroundColor, but does have ForegroundColor)
/v1g/gopath/pkg/mod/github.com/muesli/[email protected]/output.go:162:17: o.backgroundColor undefined (type *Output has no field or method backgroundColor, but does have BackgroundColor)
/v1g/gopath/pkg/mod/github.com/muesli/[email protected]/termenv.go:44:16: output.ColorProfile undefined (type *Output has no field or method ColorProfile)
/v1g/gopath/pkg/mod/github.com/muesli/[email protected]/termenv.go:102:9: o.ColorProfile undefined (type *Output has no field or method ColorProfile)
# github.com/go-git/go-git/v5
/v1g/gopath/pkg/mod/github.com/go-git/go-git/[email protected]/worktree.go:581:19: undefined: isSymlinkWindowsNonAdmin
# github.com/atotto/clipboard
/v1g/gopath/pkg/mod/github.com/atotto/[email protected]/clipboard.go:10:9: undefined: readAll
/v1g/gopath/pkg/mod/github.com/atotto/[email protected]/clipboard.go:15:9: undefined: writeAll
# github.com/twpayne/chezmoi/v2/pkg/shell
pkg/shell/shell_posix.go:28:18: undefined: cgoGetUserShell

0 replies

v1gnesh · 2023-05-05T04:51:40Z

v1gnesh
May 5, 2023
Collaborator Author

tableflip

Graceful process restarts in Go
Reference: https://blog.cloudflare.com/graceful-upgrades-in-go/

# github.com/cloudflare/tableflip
./dup_fd.go:12:29: undefined: syscall.Syscall

1 reply

v1gnesh May 14, 2023
Collaborator Author

It seems this can't be ported 😞

https://github.com/cloudflare/tableflip/blob/b3a0d54308fba327fb463cc1a3c11d3607deea53/dup_fd.go#LL12C68-L12C83

F_DUPFD_CLOEXEC isn't supported on zos:
syscall/zerrors_zos_s390x.go: F_DUPFD_CLOEXEC = 999 // NOT REAL - hopefully will trigger a EINVAL.

v1gnesh · 2023-05-05T13:55:06Z

v1gnesh
May 5, 2023
Collaborator Author

VictoriaMetrics

This is a simpler, more capable, prometheus-compatible TSDB.
victoria-metrics is a single-node deployment binary.
The rest are individual components, to be used for clustered deployments.

Need only the following built (reference: VictoriaMetrics/VictoriaMetrics@255a0cf).
But technically, we can get away with either just vmagent on zOS, or running self-contained, single-node victoria-metrics on each zOS system... to keep build fixing work to a minimum.

To reproduce:

$ git clone https://github.com/VictoriaMetrics/VictoriaMetrics.git
$ cd VictoriaMetrics/app/vmagent
$ go build

app/victoria-metrics:

# github.com/VictoriaMetrics/VictoriaMetrics/lib/memory
../../lib/memory/memory.go:34:16: undefined: sysTotalMemory
# github.com/valyala/gozstd
../../vendor/github.com/valyala/gozstd/gozstd.go:126:37: unable to find value of constant C.ZSTD_error_dstSize_tooSmall
../../vendor/github.com/valyala/gozstd/gozstd.go:250:37: unable to find value of constant C.ZSTD_error_dstSize_tooSmall
../../vendor/github.com/valyala/gozstd/gozstd.go:262:14: unable to find value of constant C.ZSTD_CONTENTSIZE_UNKNOWN
../../vendor/github.com/valyala/gozstd/gozstd.go:264:14: unable to find value of constant C.ZSTD_CONTENTSIZE_ERROR
# github.com/VictoriaMetrics/fastcache
../../vendor/github.com/VictoriaMetrics/fastcache/malloc_mmap.go:26:96: undefined: unix.MAP_ANON

app/vmagent:

# github.com/VictoriaMetrics/VictoriaMetrics/lib/memory
../../lib/memory/memory.go:34:16: undefined: sysTotalMemory
# github.com/valyala/gozstd
../../vendor/github.com/valyala/gozstd/gozstd.go:126:37: unable to find value of constant C.ZSTD_error_dstSize_tooSmall
../../vendor/github.com/valyala/gozstd/gozstd.go:250:37: unable to find value of constant C.ZSTD_error_dstSize_tooSmall
../../vendor/github.com/valyala/gozstd/gozstd.go:262:14: unable to find value of constant C.ZSTD_CONTENTSIZE_UNKNOWN
../../vendor/github.com/valyala/gozstd/gozstd.go:264:14: unable to find value of constant C.ZSTD_CONTENTSIZE_ERROR
# github.com/VictoriaMetrics/fastcache
../../vendor/github.com/VictoriaMetrics/fastcache/malloc_mmap.go:26:96: undefined: unix.MAP_ANON

app/vmalert:

# github.com/VictoriaMetrics/VictoriaMetrics/lib/memory
../../lib/memory/memory.go:34:16: undefined: sysTotalMemory
# github.com/cheggaaa/pb/v3/termutil
../../vendor/github.com/cheggaaa/pb/v3/termutil/term.go:32:11: undefined: lockEcho
../../vendor/github.com/cheggaaa/pb/v3/termutil/term.go:48:11: undefined: unlockEcho
../../vendor/github.com/cheggaaa/pb/v3/termutil/term.go:59:22: undefined: unlockSignals

app/vmauth:

# github.com/VictoriaMetrics/VictoriaMetrics/lib/memory
../../lib/memory/memory.go:34:16: undefined: sysTotalMemory

app/vmbackup:

# github.com/Azure/azure-sdk-for-go/sdk/storage/azblob/blockblob
../../vendor/github.com/Azure/azure-sdk-for-go/sdk/storage/azblob/blockblob/chunkwriting.go:273:15: undefined: mmb
../../vendor/github.com/Azure/azure-sdk-for-go/sdk/storage/azblob/blockblob/chunkwriting.go:279:65: undefined: mmb
../../vendor/github.com/Azure/azure-sdk-for-go/sdk/storage/azblob/blockblob/chunkwriting.go:281:22: undefined: mmb
../../vendor/github.com/Azure/azure-sdk-for-go/sdk/storage/azblob/blockblob/chunkwriting.go:287:39: undefined: mmb
../../vendor/github.com/Azure/azure-sdk-for-go/sdk/storage/azblob/blockblob/chunkwriting.go:293:18: undefined: newMMB
../../vendor/github.com/Azure/azure-sdk-for-go/sdk/storage/azblob/blockblob/chunkwriting.go:303:37: undefined: mmb
# github.com/VictoriaMetrics/VictoriaMetrics/lib/memory
../../lib/memory/memory.go:34:16: undefined: sysTotalMemory

app/vmctl:

# github.com/cheggaaa/pb/v3/termutil
../../vendor/github.com/cheggaaa/pb/v3/termutil/term.go:32:11: undefined: lockEcho
../../vendor/github.com/cheggaaa/pb/v3/termutil/term.go:48:11: undefined: unlockEcho
../../vendor/github.com/cheggaaa/pb/v3/termutil/term.go:59:22: undefined: unlockSignals
# github.com/VictoriaMetrics/VictoriaMetrics/lib/memory
../../lib/memory/memory.go:34:16: undefined: sysTotalMemory
# github.com/prometheus/prometheus/tsdb/fileutil
../../vendor/github.com/prometheus/prometheus/tsdb/fileutil/flock.go:39:11: undefined: newLock
# github.com/valyala/gozstd
../../vendor/github.com/valyala/gozstd/gozstd.go:126:37: unable to find value of constant C.ZSTD_error_dstSize_tooSmall
../../vendor/github.com/valyala/gozstd/gozstd.go:250:37: unable to find value of constant C.ZSTD_error_dstSize_tooSmall
../../vendor/github.com/valyala/gozstd/gozstd.go:262:14: unable to find value of constant C.ZSTD_CONTENTSIZE_UNKNOWN
../../vendor/github.com/valyala/gozstd/gozstd.go:264:14: unable to find value of constant C.ZSTD_CONTENTSIZE_ERROR
# github.com/VictoriaMetrics/fastcache
../../vendor/github.com/VictoriaMetrics/fastcache/malloc_mmap.go:26:96: undefined: unix.MAP_ANON

app/vmrestore:

# github.com/Azure/azure-sdk-for-go/sdk/storage/azblob/blockblob
../../vendor/github.com/Azure/azure-sdk-for-go/sdk/storage/azblob/blockblob/chunkwriting.go:273:15: undefined: mmb
../../vendor/github.com/Azure/azure-sdk-for-go/sdk/storage/azblob/blockblob/chunkwriting.go:279:65: undefined: mmb
../../vendor/github.com/Azure/azure-sdk-for-go/sdk/storage/azblob/blockblob/chunkwriting.go:281:22: undefined: mmb
../../vendor/github.com/Azure/azure-sdk-for-go/sdk/storage/azblob/blockblob/chunkwriting.go:287:39: undefined: mmb
../../vendor/github.com/Azure/azure-sdk-for-go/sdk/storage/azblob/blockblob/chunkwriting.go:293:18: undefined: newMMB
../../vendor/github.com/Azure/azure-sdk-for-go/sdk/storage/azblob/blockblob/chunkwriting.go:303:37: undefined: mmb
# github.com/VictoriaMetrics/VictoriaMetrics/lib/memory
../../lib/memory/memory.go:34:16: undefined: sysTotalMemory

0 replies

v1gnesh · 2023-05-06T03:33:56Z

v1gnesh
May 6, 2023
Collaborator Author

rclone

Rclone is a command-line program to manage files on cloud storage. It is a feature-rich alternative to cloud vendors' web storage interfaces. Over 40 cloud storage products support rclone including S3 object stores, business & consumer file storage services, as well as standard transfer protocols.

Rclone has powerful cloud equivalents to the unix commands rsync, cp, mv, mount, ls, ncdu, tree, rm, and cat. Rclone's familiar syntax includes shell pipeline support, and --dry-run protection. It is used at the command line, in scripts or via its API.

Users call rclone "The Swiss army knife of cloud storage", and "Technology indistinguishable from magic".

Rclone really looks after your data. It preserves timestamps and verifies checksums at all times. Transfers over limited bandwidth; intermittent connections, or subject to quota can be restarted, from the last good file transferred. You can check the integrity of your files. Where possible, rclone employs server-side transfers to minimise local bandwidth use and transfers from one provider to another without using local disk.

Virtual backends wrap local and cloud file systems to apply encryption, compression, chunking, hashing and joining.

Rclone mounts any local, cloud or virtual filesystem as a disk on Windows, macOS, linux and FreeBSD, and also serves these over SFTP, HTTP, WebDAV, FTP and DLNA.

Rclone is mature, open-source software originally inspired by rsync and written in Go. The friendly support community is familiar with varied use cases. Official Ubuntu, Debian, Fedora, Brew and Chocolatey repos. include rclone. For the latest version downloading from rclone.org is recommended.

Rclone is widely used on Linux, Windows and Mac. Third-party developers create innovative backup, restore, GUI and business process solutions using the rclone command line or API.

Rclone does the heavy lifting of communicating with cloud storage.

# github.com/rclone/rclone/lib/mmap
lib/mmap/mmap_unix.go:19:91: undefined: unix.MAP_ANON
# github.com/Azure/azure-sdk-for-go/sdk/storage/azblob/blockblob
/v1g/gopath/pkg/mod/github.com/!azure/azure-sdk-for-go/sdk/storage/[email protected]/blockblob/chunkwriting.go:273:15: undefined: mmb
/v1g/gopath/pkg/mod/github.com/!azure/azure-sdk-for-go/sdk/storage/[email protected]/blockblob/chunkwriting.go:279:65: undefined: mmb
/v1g/gopath/pkg/mod/github.com/!azure/azure-sdk-for-go/sdk/storage/[email protected]/blockblob/chunkwriting.go:281:22: undefined: mmb
/v1g/gopath/pkg/mod/github.com/!azure/azure-sdk-for-go/sdk/storage/[email protected]/blockblob/chunkwriting.go:287:39: undefined: mmb
/v1g/gopath/pkg/mod/github.com/!azure/azure-sdk-for-go/sdk/storage/[email protected]/blockblob/chunkwriting.go:293:18: undefined: newMMB
/v1g/gopath/pkg/mod/github.com/!azure/azure-sdk-for-go/sdk/storage/[email protected]/blockblob/chunkwriting.go:303:37: undefined: mmb
# github.com/rclone/rclone/fs/log
fs/log/redirect_stderr_unix.go:17:6: redirectStderr redeclared in this block
	fs/log/redirect_stderr.go:15:6: other declaration of redirectStderr
# github.com/pkg/sftp
/v1g/gopath/pkg/mod/github.com/pkg/[email protected]/attrs.go:87:2: undefined: fileStatFromInfoOs
/v1g/gopath/pkg/mod/github.com/pkg/[email protected]/ls_formatting.go:63:24: undefined: lsLinksUIDGID
# github.com/atotto/clipboard
/v1g/gopath/pkg/mod/github.com/atotto/[email protected]/clipboard.go:10:9: undefined: readAll
/v1g/gopath/pkg/mod/github.com/atotto/[email protected]/clipboard.go:15:9: undefined: writeAll

0 replies

v1gnesh · 2023-05-06T03:50:12Z

v1gnesh
May 6, 2023
Collaborator Author

wireguard-go

WireGuard® is an extremely simple yet fast and modern VPN that utilizes state-of-the-art cryptography. It aims to be faster, simpler, leaner, and more useful than IPsec, while avoiding the massive headache. It intends to be considerably more performant than OpenVPN. WireGuard is designed as a general purpose VPN for running on embedded interfaces and super computers alike, fit for many different circumstances. Initially released for the Linux kernel, it is now cross-platform (Windows, macOS, BSD, iOS, Android) and widely deployable. It is currently under heavy development, but already it might be regarded as the most secure, easiest to use, and simplest VPN solution in the industry.

V1G@zopen-dev2:/v1g/dev/wireguard-go/ipc [master] $ cp uapi_unix.go uapi_zos.go
V1G@zopen-dev2:/v1g/dev/wireguard-go/ipc [master] $ vim uapi_zos.go
V1G@zopen-dev2:/v1g/dev/wireguard-go [master] $ make
go build -v -o "wireguard-go"
golang.org/x/sys/unix
golang.org/x/net/bpf
golang.org/x/net/internal/iana
golang.org/x/net/internal/socket
golang.org/x/net/ipv4
golang.org/x/net/ipv6
golang.zx2c4.com/wireguard/conn
golang.org/x/crypto/blake2s
golang.org/x/crypto/internal/alias
golang.org/x/sys/cpu
golang.org/x/crypto/chacha20
golang.org/x/crypto/internal/poly1305
golang.org/x/crypto/chacha20poly1305
golang.org/x/crypto/curve25519/internal/field
golang.org/x/crypto/curve25519
golang.org/x/crypto/poly1305
golang.zx2c4.com/wireguard/ipc
golang.zx2c4.com/wireguard/ratelimiter
golang.zx2c4.com/wireguard/replay
golang.zx2c4.com/wireguard/rwcancel
golang.zx2c4.com/wireguard/tai64n
golang.zx2c4.com/wireguard/tun
golang.zx2c4.com/wireguard/device
golang.zx2c4.com/wireguard
# golang.zx2c4.com/wireguard
./main.go:117:15: undefined: tun.CreateTUN
./main.go:133:14: undefined: tun.CreateTUNFromFile
./main.go:232:19: undefined: ipc.UAPIListen
note: module requires Go 1.20
make[1]: *** [Makefile:20: wireguard-go] Error 2
make: *** [Makefile:12: generate-version-and-build] Error 2

note: module requires Go 1.20

Is Go 1.20 available for zOS... ?

0 replies

v1gnesh · 2023-05-27T10:30:34Z

v1gnesh
May 27, 2023
Collaborator Author

GitHub CLI

I thought the python packaging ecosystem was complicated (as a user).
Go's rabbit holes go into the next universe 😵‍💫

# github.com/AlecAivazis/survey/v2/terminal
/v1g/go/pkg/mod/github.com/!alec!aivazis/survey/[email protected]/terminal/runereader_posix.go:47:26: undefined: syscall.Syscall6
/v1g/go/pkg/mod/github.com/!alec!aivazis/survey/[email protected]/terminal/runereader_posix.go:47:81: undefined: ioctlReadTermios
/v1g/go/pkg/mod/github.com/!alec!aivazis/survey/[email protected]/terminal/runereader_posix.go:59:26: undefined: syscall.Syscall6
/v1g/go/pkg/mod/github.com/!alec!aivazis/survey/[email protected]/terminal/runereader_posix.go:59:81: undefined: ioctlWriteTermios
/v1g/go/pkg/mod/github.com/!alec!aivazis/survey/[email protected]/terminal/runereader_posix.go:67:26: undefined: syscall.Syscall6
/v1g/go/pkg/mod/github.com/!alec!aivazis/survey/[email protected]/terminal/runereader_posix.go:67:81: undefined: ioctlWriteTermios
# github.com/muesli/termenv
/v1g/go/pkg/mod/github.com/muesli/[email protected]/termenv.go:49:9: undefined: colorProfile
/v1g/go/pkg/mod/github.com/muesli/[email protected]/termenv.go:58:9: undefined: foregroundColor
/v1g/go/pkg/mod/github.com/muesli/[email protected]/termenv.go:67:9: undefined: backgroundColor

2 replies

skurtz97 May 29, 2023

@v1gnesh Go 1.20 should be available now for z/OS. That's the current version advertised for download by IBM as Go Open Enterprise SDK.

For what it's worth, a lot (most?) of the work that's been done on the Go compiler port appears to be upstreamed just not officially supported as a port. See golang.org/x/sys and subpackages as well as the other /x/ extended packages if you want to give those syscall errors a look.

Personally, I've grown to appreciate Go's packaging system, it just takes a little getting used to coming from ecosystems where there is a single centralized repository. Since the move to modules and away from mandatory GOPATH and the introduction of workspaces I think it's superior to just about anything else on offer. In particular the support for vendoring dependencies is fantastic for ports and for z/OS work where you are often deep behind firewalls.

v1gnesh May 30, 2023
Collaborator Author

Hey @skurtz97, yup, I refer to the source upstream heavily to figure out what amendments are needed.
Generally, it's very helpful to find the discussions surrounding the PRs, and tests that are submitted along with the actual code.
I post these here so that wharf can keep getting smarter & more autonomous over time.

... coming from ecosystems where there is a single centralized repository

That's debatable... because Go originated in a monorepo setting (Google).

In particular the support for vendoring dependencies is fantastic for ports and for z/OS work where you are often deep behind firewalls.

I don't see how it helps for porting, because the vendor folder is supposed to remain unmodified.
Vendoring is used to perform fully offline installs & to get complete portability (i.e., parcel a project with all its dependencies, and know that it will build... not portability = run on another architecture).

Anyway, I'm still learning too..
My most recent source: https://boyter.org/posts/how-to-start-go-project-2023/

Working through Go projects #281

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