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2021-10-06all: use bytes.Cut, strings.CutRuss Cox
Many uses of Index/IndexByte/IndexRune/Split/SplitN can be written more clearly using the new Cut functions. Do that. Also rewrite to other functions if that's clearer. For #46336. Change-Id: I68d024716ace41a57a8bf74455c62279bde0f448 Reviewed-on: https://go-review.googlesource.com/c/go/+/351711 Trust: Russ Cox <rsc@golang.org> Run-TryBot: Russ Cox <rsc@golang.org> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Ian Lance Taylor <iant@golang.org>
2021-09-17syscall: do not use handle lists on windows when NoInheritHandles is trueJason A. Donenfeld
If NoInheritHandles is passed, then we shouldn't attempt to do anything with handle lists. Otherwise CreateProcess fails with invalid param, because it's being told both to not inherit handles and to inherit certain handles. This commit fixes that by using the same logic for handle lists as it does for enabling or disabling handle inheritance. It also adds a test to make sure this doesn't regress again. Fixes #48040 Change-Id: I507261baeec263091738ab90157a991d917dc92f Reviewed-on: https://go-review.googlesource.com/c/go/+/350411 Reviewed-by: Patrik Nyblom <pnyb@google.com> Trust: Jason A. Donenfeld <Jason@zx2c4.com> Run-TryBot: Jason A. Donenfeld <Jason@zx2c4.com> TryBot-Result: Go Bot <gobot@golang.org>
2021-08-12os/exec: re-enable LookPathTest/16Dmitri Shuralyov
This failure was confirmed to be due to a bug in prerelease versions of Windows, and has been fixed by now. Remove the skip for this test. Fixes #44379. Change-Id: Idfb92ffd6b9d416d4c78ef3800a5ffdda06c6562 Reviewed-on: https://go-review.googlesource.com/c/go/+/341455 Trust: Dmitri Shuralyov <dmitshur@golang.org> Run-TryBot: Dmitri Shuralyov <dmitshur@golang.org> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Cherry Mui <cherryyz@google.com>
2021-04-14os/exec: replace os.Setenv with T.SetenvManlio Perillo
Updates #45448 Change-Id: I570e9894c4976d0a875388ef9ea4a2aa31b78013 Reviewed-on: https://go-review.googlesource.com/c/go/+/310031 Trust: Tobias Klauser <tobias.klauser@gmail.com> Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Ian Lance Taylor <iant@golang.org>
2021-04-08os/exec: replace os.MkdirTemp with T.TempDirManlio Perillo
Updates #45402 Change-Id: Idbd8067759d58bc57c52ede4ddccc98ab0ae18fc Reviewed-on: https://go-review.googlesource.com/c/go/+/308129 Run-TryBot: Dave Cheney <dave@cheney.net> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Ian Lance Taylor <iant@golang.org> Trust: Tobias Klauser <tobias.klauser@gmail.com>
2021-03-24os/exec: use testenv.SkipFlaky in TestExtraFilesFDShuffleTobias Klauser
Change-Id: Icc1980ea0f6363c667bf91371404a8df6ed6b8ab Reviewed-on: https://go-review.googlesource.com/c/go/+/303950 Trust: Tobias Klauser <tobias.klauser@gmail.com> Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com> Reviewed-by: Emmanuel Odeke <emmanuel@orijtech.com> Reviewed-by: Ian Lance Taylor <iant@golang.org> TryBot-Result: Go Bot <gobot@golang.org>
2021-03-23os/exec: simplify TestContextCancelShuhei Takahashi
TestContextCancel is a test that ensures a process is killed soon after canceling the context, even if Wait is not called (#16222). The test checks whether the process exited without calling Wait by writing some data to its stdin. Currently the test involves two goroutines writing to stdin and reading from stdout. However the reading goroutine is not very necessary to detect the process exit. This patch simplifies the test by connecting the process stdout to /dev/null. For #42061 Change-Id: I0447a1c024ee5abb050c627ec3766b731b02181a Reviewed-on: https://go-review.googlesource.com/c/go/+/303352 Trust: Emmanuel Odeke <emmanuel@orijtech.com> Run-TryBot: Emmanuel Odeke <emmanuel@orijtech.com> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Ian Lance Taylor <iant@golang.org>
2021-03-22os/exec: avoid flaky Wait in TestContextCancelShuhei Takahashi
This change just increases the timeout to 1 minute to avoid test flakiness. Fixes #42061 Change-Id: Id258488ee8f062cd5e68b68bb5cf11e15fdbb396 Reviewed-on: https://go-review.googlesource.com/c/go/+/303351 Run-TryBot: Ian Lance Taylor <iant@golang.org> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Ian Lance Taylor <iant@golang.org> Trust: Benny Siegert <bsiegert@gmail.com>
2021-03-01os: mark pipes returned by os.Pipe() as inheritable by defaultJason A. Donenfeld
Now that we don't automatically pass all inheritable handles to new processes, we can make pipes returned by os.Pipe() inheritable, just like they are on Unix. This then allows them to be passed through the SysProcAttr.AdditionalInheritedHandles parameter simply. Updates #44011. Fixes #21085. Change-Id: I8eae329fbc74f9dc7962136fa9aae8fb66879751 Reviewed-on: https://go-review.googlesource.com/c/go/+/288299 Trust: Jason A. Donenfeld <Jason@zx2c4.com> Trust: Alex Brainman <alex.brainman@gmail.com> Run-TryBot: Jason A. Donenfeld <Jason@zx2c4.com> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
2021-02-20all: go fmt std cmd (but revert vendor)Russ Cox
Make all our package sources use Go 1.17 gofmt format (adding //go:build lines). Part of //go:build change (#41184). See https://golang.org/design/draft-gobuild Change-Id: Ia0534360e4957e58cd9a18429c39d0e32a6addb4 Reviewed-on: https://go-review.googlesource.com/c/go/+/294430 Trust: Russ Cox <rsc@golang.org> Run-TryBot: Russ Cox <rsc@golang.org> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Jason A. Donenfeld <Jason@zx2c4.com> Reviewed-by: Ian Lance Taylor <iant@golang.org>
2021-02-19os/exec: disable failing LookPathTest on windows/arm64Russ Cox
For #44379. Change-Id: I9a3cf4d511a8286117f877c2ff9dbde56fa55983 Reviewed-on: https://go-review.googlesource.com/c/go/+/293709 Reviewed-by: Cherry Zhang <cherryyz@google.com> Trust: Russ Cox <rsc@golang.org>
2020-12-09all: update to use os.ReadDir where appropriateRuss Cox
os.ReadDir is a replacement for ioutil.ReadDir that returns a slice of fs.DirEntry instead of fs.FileInfo, meaning it is the more efficient form. This CL updates call sites throughout the Go source tree wherever possible. As usual, code built using the Go 1.4 bootstrap toolchain is not included. There is also a use in go/build that appears in the public API and can't be changed, at least not without additional changes. Fixes #42026. Change-Id: Icfc9dd52c6045020f6830e22c72128499462d561 Reviewed-on: https://go-review.googlesource.com/c/go/+/266366 Trust: Russ Cox <rsc@golang.org> Run-TryBot: Russ Cox <rsc@golang.org> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Ian Lance Taylor <iant@golang.org>
2020-12-09all: update to use os.ReadFile, os.WriteFile, os.CreateTemp, os.MkdirTempRuss Cox
As part of #42026, these helpers from io/ioutil were moved to os. (ioutil.TempFile and TempDir became os.CreateTemp and MkdirTemp.) Update the Go tree to use the preferred names. As usual, code compiled with the Go 1.4 bootstrap toolchain and code vendored from other sources is excluded. ReadDir changes are in a separate CL, because they are not a simple search and replace. For #42026. Change-Id: If318df0216d57e95ea0c4093b89f65e5b0ababb3 Reviewed-on: https://go-review.googlesource.com/c/go/+/266365 Trust: Russ Cox <rsc@golang.org> Run-TryBot: Russ Cox <rsc@golang.org> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Ian Lance Taylor <iant@golang.org>
2020-11-30os/exec: constrain thread usage in leaked descriptor test on illumosJoshua M. Clulow
On illumos systems, libc can under some conditions make use of files from /proc. In the case of this test, the creation of new threads was (in the target thread) causing libc to open and close "/proc/self/lwp/5/lwpname" to set the thread name, which raced with the leaking descriptor check (see detailed analysis in #42431). This change requests that the Go runtime use less threads in the child process used to check for leaked descriptors, without just disabling the test. After a thousand repeated trials, the test no longer fails on illumos. Fixes #42431. Change-Id: Iefda26134fc91f7cb205754676e9845d9b7205cc Reviewed-on: https://go-review.googlesource.com/c/go/+/273966 Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by: Ian Lance Taylor <iant@golang.org> Trust: Brad Fitzpatrick <bradfitz@golang.org> Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org> TryBot-Result: Go Bot <gobot@golang.org>
2020-11-07os/exec: use "pfiles" for fd debugging on illumosJoshua M. Clulow
On illumos (and Solaris) systems, the native "pfiles" tool provides the best information about open file descriptors for a process: https://illumos.org/man/1/pfiles Use that instead of "lsof" when debugging file descriptor leaks. Updates #42431. Change-Id: If1250c4e6c9e8adbd076495a09fb1ce63abcc68b Reviewed-on: https://go-review.googlesource.com/c/go/+/268019 Run-TryBot: Ian Lance Taylor <iant@golang.org> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Ian Lance Taylor <iant@golang.org> Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org> Trust: Dmitri Shuralyov <dmitshur@golang.org>
2020-10-20all: update references to symbols moved from io/ioutil to ioRuss Cox
The old ioutil references are still valid, but update our code to reflect best practices and get used to the new locations. Code compiled with the bootstrap toolchain (cmd/asm, cmd/dist, cmd/compile, debug/elf) must remain Go 1.4-compatible and is excluded. Also excluded vendored code. For #41190. Change-Id: I6d86f2bf7bc37a9d904b6cee3fe0c7af6d94d5b1 Reviewed-on: https://go-review.googlesource.com/c/go/+/263142 Trust: Russ Cox <rsc@golang.org> Run-TryBot: Russ Cox <rsc@golang.org> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Emmanuel Odeke <emm.odeke@gmail.com>
2020-10-20all: update references to symbols moved from os to io/fsRuss Cox
The old os references are still valid, but update our code to reflect best practices and get used to the new locations. Code compiled with the bootstrap toolchain (cmd/asm, cmd/dist, cmd/compile, debug/elf) must remain Go 1.4-compatible and is excluded. For #41190. Change-Id: I8f9526977867c10a221e2f392f78d7dec073f1bd Reviewed-on: https://go-review.googlesource.com/c/go/+/243907 Trust: Russ Cox <rsc@golang.org> Run-TryBot: Russ Cox <rsc@golang.org> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Rob Pike <r@golang.org>
2020-10-09all: enable more tests on macOS/ARM64Cherry Zhang
On macOS, we can do "go build", can exec, and have the source tree available, so we can enable more tests. Skip ones that don't work. Most of them are due to that it requires external linking (for now) and some tests don't work with external linking (e.g. runtime deadlock detection). For them, helper functions CanInternalLink/MustInternalLink are introduced. I still want to have internal linking implemented, but it is still a good idea to identify which tests don't work with external linking. Updates #38485. Change-Id: I6b14697573cf3f371daf54b9ddd792acf232f2f2 Reviewed-on: https://go-review.googlesource.com/c/go/+/260719 Trust: Cherry Zhang <cherryyz@google.com> Run-TryBot: Cherry Zhang <cherryyz@google.com> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by: Than McIntosh <thanm@google.com>
2020-04-18os/exec: build TestExtraFiles subprocess without cgoIan Lance Taylor
Fixes #25628 Change-Id: I8b69e59f9c0123c4f65b5931d7c6d7ecc1c720e8 Reviewed-on: https://go-review.googlesource.com/c/go/+/228639 Run-TryBot: Ian Lance Taylor <iant@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Bryan C. Mills <bcmills@google.com>
2020-04-14os/exec: create extra threads when starting a subprocessIan Lance Taylor
TestExtraFiles seems to be flaky on GNU/Linux systems when using cgo because creating a new thread will call malloc which can create a new arena which can open a file to see how many processors there are. Try to avoid the flake by creating several new threads at process startup time. For #25628 Change-Id: Ie781acdbba475d993c39782fe172cf7f29a05b24 Reviewed-on: https://go-review.googlesource.com/c/go/+/228099 Reviewed-by: Bryan C. Mills <bcmills@google.com>
2020-04-10os/exec: extend grace period in TestExtraFiles to 20% of overall deadlineBryan C. Mills
Updates #25628 Change-Id: I938a7646521b34779a3a57833e7ce9d508b58faf Reviewed-on: https://go-review.googlesource.com/c/go/+/227765 Run-TryBot: Bryan C. Mills <bcmills@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Ian Lance Taylor <iant@golang.org>
2020-04-08os/exec: use subprocess deadline in TestExtraFilesIan Lance Taylor
Try to get some output even if the subprocess hangs. For #25628 Change-Id: I4cc0a8f2c52b03a322b8fd0a620cba37b06ff10a Reviewed-on: https://go-review.googlesource.com/c/go/+/227517 Run-TryBot: Ian Lance Taylor <iant@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Bryan C. Mills <bcmills@google.com>
2020-03-27os/exec: add temporary debugging code for #25628Ian Lance Taylor
On linux-386 builders run the TestExtraFiles subprocess under strace, in hopes of finding out where the unexpected descriptor is coming from. For #25628 Change-Id: I9a62d6a5192a076525a616ccc71de74bbe7ebd58 Reviewed-on: https://go-review.googlesource.com/c/go/+/225799 Run-TryBot: Ian Lance Taylor <iant@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Bryan C. Mills <bcmills@google.com>
2020-03-24os/exec: for TestExtraFiles failure, print readlink of unexpected fdIan Lance Taylor
For #25628 Change-Id: If1dce7ba9310e1418e67b9954c989471b775a28e Reviewed-on: https://go-review.googlesource.com/c/go/+/225278 Run-TryBot: Ian Lance Taylor <iant@golang.org> Reviewed-by: Bryan C. Mills <bcmills@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org>
2020-02-25os/exec: use environment variables for user token when presentLiam 'Auzzie' Haworth
Builds upon the changes from #32000 which supported sourcing environment variables for a new process from the environment of a Windows user token when supplied. But due to the logic of os/exec, the Env field of a process was always non-nil when it reached that change. This change moves the logic up to os/exec, specifically when os.ProcAttr is being built for the os.StartProcess call, this ensures that if a user token has been supplied and no Env slice has been provided on the command it will be sourced from the user's environment. If no token is provided, or the program is compiled for any other platform than Windows, the default environment will be sourced from syscall.Environ(). Fixes #35314 Change-Id: I4c1722e90b91945eb6980d5c5928183269b50487 GitHub-Last-Rev: 32216b7291418f9285147a93ed6d0ba028f94ef2 GitHub-Pull-Request: golang/go#37402 Reviewed-on: https://go-review.googlesource.com/c/go/+/220587 Run-TryBot: Ian Lance Taylor <iant@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Ian Lance Taylor <iant@golang.org>
2019-12-15os/exec: ignore hungup error while copying stdin on Plan 9Fazlul Shahriar
Fixes #35753 Change-Id: I38674c59c601785eb25b778dc25efdb92231dd9b Reviewed-on: https://go-review.googlesource.com/c/go/+/208223 Run-TryBot: Emmanuel Odeke <emm.odeke@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2019-12-02os/exec: document that cmd.Start() sets the Process fieldGünther Noack
Change-Id: I4f41b680741e9bd2a4e8c094ecf3ce6226e48d12 GitHub-Last-Rev: 8f58bc6c4398cf739b33f8b5368926d6650059c3 GitHub-Pull-Request: golang/go#35934 Reviewed-on: https://go-review.googlesource.com/c/go/+/209558 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2019-11-13os/exec: skip poll descriptors when checking for open descriptorsIan Lance Taylor
It turns out that there is a path that initializes netpoll and opens file descriptors before running the os/exec init function: on some systems, the uses of NewFile when setting os.Stdin and friends can initialize netpoll which can open file descriptors. This in itself is not a problem, but when we check whether the new files are open using os.NewFile, a side-effect is to put them into non-blocking mode. This can then break future uses of netpoll. Updates #35469 Fixes #35566 Change-Id: I1b2e2c943695d1c2d29496b050abbce9ee710a00 Reviewed-on: https://go-review.googlesource.com/c/go/+/207078 Reviewed-by: Bryan C. Mills <bcmills@google.com>
2019-11-13os/exec: don't run TestExtraFiles if extra files were open for the testIan Lance Taylor
Our attempts to close existing open files are flaky. They will fail if, for example, file descriptor 3 is open when the test binary starts. Instead, report any such cases, and skip TestExtraFiles. Updates #35469 Change-Id: I7caec083f3f4a31579bf28fc9c82ae89b1bde49a Reviewed-on: https://go-review.googlesource.com/c/go/+/206939 Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by: Bryan C. Mills <bcmills@google.com>
2019-10-22os/exec: skip possible netpoll pipe in known FDs in testIan Lance Taylor
Fixes #35045 Change-Id: I90ac29882c7d03936c98c4116a8bccdd2ecbf76b Reviewed-on: https://go-review.googlesource.com/c/go/+/202445 Run-TryBot: Ian Lance Taylor <iant@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
2019-10-17os/exec: re-enable TestExtraFiles checks skipped on various OSesBryan C. Mills
The issues associated with these skipped checks are closed. If they are working around unfixed bugs, the issues should remain open. If they are working around unfixable properties of the system, the skips should refer to those properties rather than closed issues. Updates #2603 Updates #3955 Updates #25628 Change-Id: I3491c69b2ef5bad0fb12001fe8f7e06b424883ca Reviewed-on: https://go-review.googlesource.com/c/go/+/201718 Run-TryBot: Bryan C. Mills <bcmills@google.com> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2019-10-17os/exec: preserve the process environment when invoking TestHelperProcessBryan C. Mills
Also log errors from the lsof command on failure. (That's how the missing environment was discovered.) Updates #25628 Change-Id: I71594f60c15d0d254d5d4a86deec7431314c92ff Reviewed-on: https://go-review.googlesource.com/c/go/+/201717 Run-TryBot: Bryan C. Mills <bcmills@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2019-10-09all: remove the nacl port (part 1)Brad Fitzpatrick
You were a useful port and you've served your purpose. Thanks for all the play. A subsequent CL will remove amd64p32 (including assembly files and toolchain bits) and remaining bits. The amd64p32 removal will be separated into its own CL in case we want to support the Linux x32 ABI in the future and want our old amd64p32 support as a starting point. Updates #30439 Change-Id: Ia3a0c7d49804adc87bf52a4dea7e3d3007f2b1cd Reviewed-on: https://go-review.googlesource.com/c/go/+/199499 Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by: Ian Lance Taylor <iant@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org>
2019-10-04os/exec: simplify doc wording for cmd.StdoutPipe and cmd.StderrPipeJosh Bleecher Snyder
The existing text was hard to parse. Shorten the sentences and simplify the text. Change-Id: Ic16f486925090ea303c04e70969e5a4b27a60896 Reviewed-on: https://go-review.googlesource.com/c/go/+/198758 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2019-05-22all: shorten some testsRuss Cox
Shorten some of the longest tests that run during all.bash. Removes 7r 50u 21s from all.bash. After this change, all.bash is under 5 minutes again on my laptop. For #26473. Change-Id: Ie0460aa935808d65460408feaed210fbaa1d5d79 Reviewed-on: https://go-review.googlesource.com/c/go/+/177559 Run-TryBot: Russ Cox <rsc@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Ian Lance Taylor <iant@golang.org>
2019-05-04all: add Unwrap and Is methods to various error typesDamien Neil
Add Unwrap methods to types which wrap an underlying error: "encodinc/csv".ParseError "encoding/json".MarshalerError "net/http".transportReadFromServerError "net".OpError "net".DNSConfigError "net/url".Error "os/exec".Error "signal/internal/pty".PtyError "text/template".ExecError Add os.ErrTemporary. A case could be made for putting this error value in package net, since no exported error types in package os include a Temporary method. However, syscall errors returned from the os package do include this method. Add Is methods to error types with a Timeout or Temporary method, making errors.Is(err, os.Err{Timeout,Temporary}) equivalent to testing the corresponding method: "context".DeadlineExceeded "internal/poll".TimeoutError "net".adrinfoErrno "net".OpError "net".DNSError "net/http".httpError "net/http".tlsHandshakeTimeoutError "net/pipe".timeoutError "net/url".Error Updates #30322 Updates #29934 Change-Id: I409fb20c072ea39116ebfb8c7534d493483870dc Reviewed-on: https://go-review.googlesource.com/c/go/+/170037 Run-TryBot: Damien Neil <dneil@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Marcel van Lohuizen <mpvl@golang.org>
2019-04-30all: add new GOOS=illumos, split out of GOOS=solarisJoshua M. Clulow
Like GOOS=android which implies the "linux" build tag, GOOS=illumos implies the "solaris" build tag. This lets the existing ecosystem of packages still work on illumos, but still permits packages to start differentiating between solaris and illumos. Fixes #20603 Change-Id: I8f4eabf1a66060538dca15d7658c1fbc6c826622 Reviewed-on: https://go-review.googlesource.com/c/go/+/174457 Run-TryBot: Benny Siegert <bsiegert@gmail.com> Reviewed-by: Benny Siegert <bsiegert@gmail.com> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org>
2019-04-29os/exec: always set SYSTEMROOT on Windows if not listed in Cmd.EnvBrad Fitzpatrick
Fixes #25210 Change-Id: If27b61776154dae9b9b67bf4e4f5faa785d98105 Reviewed-on: https://go-review.googlesource.com/c/go/+/174318 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2019-04-07os/exec: skip unsupported test on AndroidElias Naur
The underlying system call tested by TestCredentialNoSetGroups is blocked on Android. Discovered while running all.bash from an Android device; the syscall is only blocked in an app context. Change-Id: I16fd2e64636a0958b0ec86820723c0577b8f8f24 Reviewed-on: https://go-review.googlesource.com/c/go/+/170945 Run-TryBot: Elias Naur <mail@eliasnaur.com> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org>
2019-03-21os/exec: add Cmd.StringJosh Bleecher Snyder
The initial implementation is intentionally simple. Let's see how far it gets us. Fixes #30638 Change-Id: I240afae2b401744ab2ff2a69952c4eb0fd3feb56 Reviewed-on: https://go-review.googlesource.com/c/go/+/168518 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2019-03-04os/exec: less allocs in the common caseDaniel Martí
When Stdin, Stdout, and Stderr are nil, there are no goroutines to keep track of, so we don't need a channel. And in startProcess, preallocate the right size for sysattr.Files, saving a bit of space and a couple of slice growth allocs. name old time/op new time/op delta ExecHostname-8 419µs ± 0% 417µs ± 1% ~ (p=0.093 n=6+6) name old alloc/op new alloc/op delta ExecHostname-8 6.40kB ± 0% 6.28kB ± 0% -1.86% (p=0.002 n=6+6) name old allocs/op new allocs/op delta ExecHostname-8 34.0 ± 0% 31.0 ± 0% -8.82% (p=0.002 n=6+6) Change-Id: Ic1d617f29e9c6431cdcadc7f9bb992750a6d5f48 Reviewed-on: https://go-review.googlesource.com/c/164801 Run-TryBot: Daniel Martí <mvdan@mvdan.cc> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2019-03-03os/exec: don't use the echo binary for a benchmarkDaniel Martí
Most notably, it's missing on Windows machines. For example, windows-amd64-race started failing consistently: --- FAIL: BenchmarkExecEcho bench_test.go:15: could not find echo: exec: "echo": executable file not found in %PATH% We can also reproduce this from Linux with Wine: $ GOOS=windows go test -bench=. -benchtime=1x -run=- -exec wine --- FAIL: BenchmarkExecEcho bench_test.go:15: could not find echo: exec: "echo": executable file not found in %PATH% Instead, use the "hostname" program, which is available on Windows too. Interestingly enough, it's also slightly faster than "echo". Any program is fine as long as it's close enough to a no-op, though. name old time/op new time/op delta ExecEcho-8 422µs ± 0% 395µs ± 0% -6.39% (p=0.004 n=6+5) name old alloc/op new alloc/op delta ExecEcho-8 6.39kB ± 0% 6.42kB ± 0% +0.53% (p=0.002 n=6+6) name old allocs/op new allocs/op delta ExecEcho-8 36.0 ± 0% 36.0 ± 0% ~ (all equal) Change-Id: I772864d69979172b5cf807552c84d0e165e73051 Reviewed-on: https://go-review.googlesource.com/c/164704 Run-TryBot: Daniel Martí <mvdan@mvdan.cc> Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org>
2019-03-03os/exec: preallocate for Cmd.childFilesDaniel Martí
We're always going to add stdin, stdout, and stderr to childFiles, so its length will be at least three. The final length will be those three elements plus however many files were given via ExtraFiles. Allocate for that final length directly, saving two slice growth allocs in the common case where ExtraFiles is empty. name old time/op new time/op delta ExecEcho-8 435µs ± 0% 435µs ± 0% ~ (p=0.394 n=6+6) name old alloc/op new alloc/op delta ExecEcho-8 6.39kB ± 0% 6.37kB ± 0% -0.39% (p=0.002 n=6+6) name old allocs/op new allocs/op delta ExecEcho-8 36.0 ± 0% 34.0 ± 0% -5.56% (p=0.002 n=6+6) Change-Id: Ib702c0da1e43f0a55ed937af6d45fca6a170e8f3 Reviewed-on: https://go-review.googlesource.com/c/164898 Run-TryBot: Daniel Martí <mvdan@mvdan.cc> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2019-03-02os/exec: provide map size hint in dedupEnvCaseJosh Bleecher Snyder
The common case is that most env vars are distinct; optimize for that. name old time/op new time/op delta ExecEcho-8 2.16ms ± 3% 2.14ms ± 1% ~ (p=0.315 n=10+10) name old alloc/op new alloc/op delta ExecEcho-8 7.87kB ± 0% 6.35kB ± 0% -19.31% (p=0.000 n=9+10) name old allocs/op new allocs/op delta ExecEcho-8 72.0 ± 0% 69.0 ± 0% -4.17% (p=0.000 n=10+10) Change-Id: I42bb696c6862f2ea12c5cbd2f24c64336a7a759a Reviewed-on: https://go-review.googlesource.com/c/164960 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2019-03-02os/exec: add BenchmarkExecEchoJosh Bleecher Snyder
Change-Id: Ie955cdc505766447f70b8f262160fe05b60a5b0c Reviewed-on: https://go-review.googlesource.com/c/164959 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-11-02internal/poll, os/exec, runtime: replace PollDescriptor by IsPollDescriptorClément Chigot
This commit changes poll.PollDescriptor by poll.IsPollDescriptor. This is needed for OS like AIX which have more than one FD using inside their netpoll implementation. Change-Id: I49e12a8d74045c501e19fdd8527cf166a3c64850 Reviewed-on: https://go-review.googlesource.com/c/146938 Run-TryBot: Ian Lance Taylor <iant@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Ian Lance Taylor <iant@golang.org>
2018-10-11os: add AIX operating systemClément Chigot
This commit adds AIX operating system to os package for ppc64 architecture. Updates: #25893 Change-Id: Ieb9a2b3ac5b9abd3b5ab68eb732c17b6256d624d Reviewed-on: https://go-review.googlesource.com/c/138725 Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org>
2018-09-01os/exec: document how to do special args quoting on WindowsGiovanni Bajo
Updates #27199 Change-Id: I5cb6540266901697d3558ce75b8de63b1bfc2ce0 Reviewed-on: https://go-review.googlesource.com/132695 Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
2018-08-28os/exec: pass ExitCode tests on Plan 9Fazlul Shahriar
Fixes #27294 Change-Id: I8db5ca0f0c690bf532d3d33b8ed7d2633ad1702b Reviewed-on: https://go-review.googlesource.com/131855 Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-08-28os: add ExitCode method to ProcessStateGuoliang Wang
Fixes #26539 Change-Id: I6d403c1bbb552e1f1bdcc09a7ccd60b50617e0fc GitHub-Last-Rev: 0b5262df5d99504523fd7a4665cb70a3cc6b0a09 GitHub-Pull-Request: golang/go#26544 Reviewed-on: https://go-review.googlesource.com/125443 Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
generated by cgit v1.3 (git 2.53.0) at 2026-04-15 12:42:55 +0000