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This will let cmd/cgo and cmd/link use this package for argument parsing.
For golang/go#41400
Change-Id: I12ee21151bf3f00f3e8d427faaaab2453c823117
Reviewed-on: https://go-review.googlesource.com/c/go/+/334730
Trust: Jay Conrod <jayconrod@google.com>
Reviewed-by: Michael Matloob <matloob@golang.org>
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targets
This change replaces the Target variable that represents the main module
and the pathPrefix and inGorootSrc which provide other information about
the main module with a single MainModules value that represents multiple
main modules and holds their path prefixes, module roots, and whether
they are in GOROOT/src. In cases where the code checks Target or its
previously associated variables, the code now checks or iterates over
MainModules. In some cases, the code still assumes a single main module
by calling MainModules.MustGetSingleMainModule. Some of those cases are
correct: for instance, there is always only one main module for
mod=vendor. Other cases are accompanied with TODOs and will have to be
fixed in future CLs to properly support multiple main modules.
This CL (and other cls on top of it) are planned to be checked into a
branch to allow for those evaluating the workspaces proposal to try it
hands on.
For #45713
Change-Id: I3b699e1d5cad8c76d62dc567b8460de8c73a87ea
Reviewed-on: https://go-review.googlesource.com/c/go/+/334932
Trust: Michael Matloob <matloob@golang.org>
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If the go command is executed on Linux in a deleted directory,
it fails. This behavior is reasonable for commands which depend on
the CWD, but it's unexpected for commands like `go version`.
This change delays initialization of a global CWD variable.
Fixed #34499
Change-Id: I7302fb84a3b7f5f149a123d277abd5b9b5bc95b2
Reviewed-on: https://go-review.googlesource.com/c/go/+/268261
Reviewed-by: Bryan C. Mills <bcmills@google.com>
Trust: Bryan C. Mills <bcmills@google.com>
Trust: Ian Lance Taylor <iant@golang.org>
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We were already setting GIT_SSH_COMMAND (if unset) to explicitly
include 'ControlMaster=no' in order to disable connection pooling.
Now we also set 'BatchMode=yes' to suppress password prompts for
password-protected keys.
While we're here, we also set GCM_INTERACTIVE=never to suppress
similar prompts from the Git Credential Manager for Windows.
Fixes #44904
Change-Id: Iebb050079ff7dd54d5b944c459ae212e9e6f2579
Reviewed-on: https://go-review.googlesource.com/c/go/+/300157
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PackageOpts is a new struct type accepted by package loading
functions. It initially has two fields: IgnoreImports, and
ModResolveTests. Previously, these were global variables set by
clients. We'll add more to this in the future.
For #40775
Change-Id: I6956e56502de836d3815ce788bdf16fc5f3e5338
Reviewed-on: https://go-review.googlesource.com/c/go/+/310669
Trust: Jay Conrod <jayconrod@google.com>
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Resolves #37519
Change-Id: Iba675a180b0e61b12835cdb6ecd4c6dc61e0605c
GitHub-Last-Rev: aa018af6f8fc7f0b829820e831ad96734adcb8d0
GitHub-Pull-Request: golang/go#44724
Reviewed-on: https://go-review.googlesource.com/c/go/+/297709
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This incorporates CL 297089, which allows leading dots in import path
elements but not module path elements. Also added a test.
Fixes #43985
Updates #34992
Change-Id: I2d5faabd8f7b23a7943d3f3ccb6707ab5dc2ce3c
Reviewed-on: https://go-review.googlesource.com/c/go/+/297530
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* All commands the user can run to fix the problem now appear alone on
a separate line after a tab.
* Removed -d from 'go get' commands.
* Replaced 'go mod tidy' with 'go mod download $modpath' when a
package might be provided by a module missing a sum.
* Errors about 'path@version' syntax are more explicit.
Fixes #29415
Fixes #42087
Fixes #43430
Fixes #43523
Change-Id: I4427c2c4506a727a2c727d652fd2d506bb134d3b
Reviewed-on: https://go-review.googlesource.com/c/go/+/282121
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Replaced load.PackagesForBuild with a new function,
load.CheckPackageErrors. Callers should now call PackagesAndErrors,
then CheckPackageErrors for the same functionality.
Removed load.Packages. Callers should call base.Errorf and filter the
package list as needed.
This gives callers more flexibility in handling package load errors.
For #42638
Change-Id: Id75463ba695adc1ca3f8693ceb2c8978b74a3500
Reviewed-on: https://go-review.googlesource.com/c/go/+/277354
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Updates #37519
Change-Id: I212607f1839b729d7da24b1258e56997b13ad830
GitHub-Last-Rev: db6d3c835bdf867a0b18f115276210e3a05902ed
GitHub-Pull-Request: golang/go#41613
Reviewed-on: https://go-review.googlesource.com/c/go/+/257157
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Adds deprecation warning for -insecure flag on go get in both modules
and GOPATH mode.
Updates #37519.
Change-Id: Ie2efeeb4a91e6dda92955295969e9715314ae50e
GitHub-Last-Rev: a9ebe21fe067baa12391ad4f9357d8e5b0cf7051
GitHub-Pull-Request: golang/go#41497
Reviewed-on: https://go-review.googlesource.com/c/go/+/255882
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This is a refactoring intended to break the dependency from
internal/modfetch to internal/get. No change in functionality is intended.
Change-Id: If51aba7139cc0b62ecc9ba454c055c99e8f36f0f
Reviewed-on: https://go-review.googlesource.com/c/go/+/254364
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Change-Id: If9c73ff5adc7e080a48ecc6b35ce40822193d66f
Reviewed-on: https://go-review.googlesource.com/c/go/+/254363
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Adds support for the GOINSECURE environment variable to GOPATH mode.
Updates #37519.
Change-Id: Ibe3f52b7f30b1395edb000998905ee93abe6cada
GitHub-Last-Rev: e298c0009eb5eba537bb00185a8778d2aab696ba
GitHub-Pull-Request: golang/go#38628
Reviewed-on: https://go-review.googlesource.com/c/go/+/229758
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The copy of CheckImportPath in path.go and the regular expression for github
repos in vcsPaths together allow import paths with unicode letters with import
paths. These all come from github repos with non-ASCII unicode letters
with paths in directories. This mainly shows up in GOPATH mode, but could
also show up in Module mode when getting a module in GOPROXY=direct mode.
We expect there to not be any significant affected users of this change--
an investingation of github repos that would produce import paths that
would comply with the copy CheckImportPaths that's being removed, but not
modload.CheckImportPaths only surfaced a handful of cases, all of which
seemed to be small test or demonstation repos. But this CL is being
submitted early in the cycle so that it can be backed out if need be.
Updates #29101
Change-Id: I719df4af5b318e1330e90d8a0bffe5bb8d816f4f
Reviewed-on: https://go-review.googlesource.com/c/go/+/251878
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This change does context propagation (and only context propagation)
necessary to add context to modfetch.Download and pkg.LoadImport.
This was done by adding context to their callers, and then
adding context to all call-sites, and then repeating adding
context to callers of those enclosing functions and their
callers until none were left. In some cases the call graph expansion
was pruned by using context.TODOs.
The next CL will add a span to Download. I kept it out of this
change to avoid making it any larger (and harder to review)
than it needs to be.
Updates #38714
Change-Id: I7a03416e04a14ca71636d96f2c1bda2c4c30d348
Reviewed-on: https://go-review.googlesource.com/c/go/+/249021
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This reverts the following changes:
• cmd/go: add tracing for querying and downloading from the proxy
CL 242786, commit 1a3558341860357c2400e37773e5076bb3a51628
• cmd/go: do context propagation for tracing downloads
CL 248327, commit c0cf190d226cc3defb71d17c01d0b45bf49a8a85
• cmd/go/internal: remove some users of par.Work
CL 248326, commit f30044a03bc7cf107dbec03c02fb6d0072878252
Reason for revert: broke linux 386 and amd64 longtest builders.
The problem started with CL 248326, but CL 248327 and CL 242786
are reverted as well due to conflicts.
Updates #38714.
Fixes #40861.
Change-Id: I68496b4e5a27e47a42183553c3a645b288edac83
Reviewed-on: https://go-review.googlesource.com/c/go/+/249017
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This change does context propagation (and only context propagation)
necessary to add context to modfetch.Download and pkg.LoadImport.
This was done by adding context to their callers, and then
adding context to all call-sites, and then repeating adding
context to callers of those enclosing functions and their
callers until none were left. In some cases the call graph expansion
was pruned by using context.TODOs.
The next CL will add a span to Download. I kept it out of this
change to avoid making it any larger (and harder to review)
than it needs to be.
Updates #38714
Change-Id: I5bf2d599aafef67334c384dfccd5e255198c85b4
Reviewed-on: https://go-review.googlesource.com/c/go/+/248327
Run-TryBot: Michael Matloob <matloob@golang.org>
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This change propagates context into PackagesForErrors and Do for
the purpose of tracing, and calls trace.StartSpan on PackagesForErrors
and Do, so that the trace now shows the broad outline of where
the "Loading" and "Execution" phases are in the build.
Updates #38714
Change-Id: Ib9a7cf7030210f68f76663d1c8a7461e0a226611
Reviewed-on: https://go-review.googlesource.com/c/go/+/238541
Run-TryBot: Michael Matloob <matloob@golang.org>
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One small step to start propagating the context in
cmd/go for tracing purposes.
Updates #38714
Change-Id: Ibb6debeb9233f84d55f0e81244487355cbe7b82c
Reviewed-on: https://go-review.googlesource.com/c/go/+/237684
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Using 'go get x.go' instead of 'go build x.go' or some other
go command is a common mistake. By that mistake, a user gets
a misleading error message about unsuccessful `x.go` domain lookup.
This improvement handles such cases, by validating, whether the
argument hasn't specified version, has .go suffix, and either has
no slashes or such file locally exists. Handled both GOPATH
and GOMOD modes.
Fixes #38478
Change-Id: I583a4ef7f7ca8901deb07ebc811e2b3c0e828fa6
Reviewed-on: https://go-review.googlesource.com/c/go/+/229938
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To avoid confusion, also distinguish between packages and dirs in
search.Match results.
No test because this is technically only a performance optimization:
it would be very difficult to write such a test so that it would not
be flaky. (However, tested the change manually.)
Fixes #37521
Change-Id: I17b443699ce6a8f3a63805a7ef0be806f695a4b3
Reviewed-on: https://go-review.googlesource.com/c/go/+/221544
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methods
This change consolidates predicates currently scattered throughout
various parts of the package and module loader into methods on the
search.Match type.
That not only makes them more concise, but also encourages
consistency, both in the code and in reasoning about the kinds of
patterns that need to be handled. (For example, the IsLocal predicate
was previously two different calls, either of which could be easily
forgotten at a given call site.)
Factored out from CL 185344 and CL 185345.
Updates #32917
Change-Id: Ifa450ffaf6101f673e0ed69ced001a487d6f9335
Reviewed-on: https://go-review.googlesource.com/c/go/+/221458
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Previously, we would either invoke base.Fatalf (which is too aggressive),
or log.Print (which is too passive).
Updates #32917
Change-Id: I5475e873e76948de7df65dca08bc0ce67a7fc827
Reviewed-on: https://go-review.googlesource.com/c/go/+/185344
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The -modcacherw flag is now registered in work.AddModCommonFlags,
which is called from work.AddBuildFlags, where it was registered
before. 'go mod' subcommands register the flag by calling
work.AddModCommonFlags directly.
Also, build commands now exit with an error if -modcacherw is set
explicitly (not in GOFLAGS) in GOPATH mode.
Updates #31481
Change-Id: I461e59a51ed31b006fff4d5c57c2a866be0bbf38
Reviewed-on: https://go-review.googlesource.com/c/go/+/202563
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This change introduces a new interface, load.ImportPathError. An error
may satisfy this by providing an ImportPath method and including the
import path in its error text. modload.ImportMissingError satisfies
this interface. load.ImportErrorf also provides a convenient way to
create an error satisfying this interface with an arbitrary message.
When load.PackageError formats its error text, it may omit the last
path on the import stack if the wrapped error satisfies
ImportPathError and has a matching path.
To make this work, PackageError.Err is now an error instead of a
string. PackageError.MarshalJSON will write Err as a string for
'go list -json' output.
When go/build.Import invokes 'go list' in module mode, it now runs
with '-e' and includes '.Error' in the output format instead of
expecting the error to be in the raw stderr text. If a package error
is printed and a directory was not found, the error will be returned
without extra decoration.
Fixes #34752
Change-Id: I2d81dab7dec19e0ae9f51f6412bc9f30433a8596
Reviewed-on: https://go-review.googlesource.com/c/go/+/199840
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'GOFLAGS=-mod=vendor' currently causes 'go get' to always fail unless
the '-mod' flag is explicitly overwritten. Moreover, as of CL 198319
we plan to set -mod=vendor by default if a vendor directory is
present, so all users with vendor directories will be affected — not
just those who set 'GOFLAGS' explicitly.
Similarly, an explicit '-mod=readonly' argument to 'go get' is
currently ignored as a special case, but the fact that it is ignored
(rather than rejected) can be very surprising.
Rather than adding more special cases, we should remove the '-mod'
flag from 'go get' entirely.
Fixes #30345
Fixes #32502
Updates #33848
Change-Id: Iecd3233ca3ef580ca3a66bd5e6ee8d86d4cbd8a7
Reviewed-on: https://go-review.googlesource.com/c/go/+/198438
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Fixes #31857
Change-Id: Ib0b791376acb7ee1cdc163f808b8ecf77dbdaf06
Reviewed-on: https://go-review.googlesource.com/c/go/+/176580
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The cmd/go/internal/web package was forked in order to support direct
HTTPS fetches from widely-used hosting providers,¹ but direct fetches
were subsequently dropped in CL 107657. The forked web2 package, with
its GitHub-specific diagnostics and .netrc support, remained in use
for module proxy support, but was not used for the initial '?go-get=1'
path resolution, so the .netrc file was only used to fetch from
already-resolved module protocol servers.
This CL moves the .netrc support into its own (new) package,
cmd/go/internal/auth, and consolidates the web and web2 packages back
into just web. As a result, fetches via the web package now support
.netrc, and fetches that previously used web2 now enforce the same
security policies as web (such as prohibiting HTTPS-to-HTTP
redirects).
¹https://github.com/golang/vgo/commit/63138cb6ceed7d6d4e51a8cbd568c64bd3e2b132
Fixes #29591
Fixes #29888
Fixes #30610
Updates #26232
Change-Id: Ia3a13526e443679cf14a72a1f3db96f336ce5e73
Reviewed-on: https://go-review.googlesource.com/c/go/+/170879
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LoadPackage was used to load a *load.Package for a command line
argument, after pattern expansion. It provided two special cases on
top of LoadImport. First, it ensured that "cmd/" packages in GOROOT
were installed in "$GOROOT/bin" or "$GOROOT/pkg/tool". Second, it
translated absolute paths to packages in GOROOT and GOPATH into
regular import paths.
With this change, LoadImport now ensures "cmd/" packages have the
right Target (without the need for a special case) and
search.ImportPaths translates absolute paths.
LoadPackage no longer handles these special cases and has been renamed
to LoadImportWithFlags, since it's still useful for loading implicit
dependencies.
Updates #29758
Change-Id: I9d54036f90c3ccd9b3a0fe0eaddaa7749593cc91
Reviewed-on: https://go-review.googlesource.com/c/go/+/167748
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Previously, RepoRootForImportPath trimmed certain "..." wildcards from
package patterns (even though its name suggests that the argument must
be an actual import path). It trimmed at the first path element that
was literally "..." (although wildcards in general may appear within a
larger path element), and relied on a subsequent check in
RepoRootForImportPath to catch confusing resolutions.
However, that causes 'go get' with wildcard patterns in fresh paths to
fail as of CL 154101: a wildcard pattern is not a valid import path,
and fails the path check. (The existing Test{Vendor,Go}Get* packages
in go_test.go and vendor_test.go catch the failure, but they are all
skipped when the "-short" flag is set — including in all.bash — and we
had forgotten to run them separately.)
We now trim the path before any element that contains a wildcard, and
perform the path check (and repo resolution) on only that prefix. It
is possible that the expanded path after fetching the repo will be
invalid, but a repository can contain directories that are not valid
import paths in general anyway.
Fixes #29241
Change-Id: I70fb2f7fc6603b7d339fd6c02e8cdeacfc93fc4b
Reviewed-on: https://go-review.googlesource.com/c/154108
Reviewed-by: Russ Cox <rsc@golang.org>
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On some platforms, directories beginning with dot are treated as
hidden files, and filenames containing unusual characters can be
confusing for users to manipulate (and delete).
Fixes #29230
Fixes #29231
Change-Id: Ic6f97f577d8fafa83ef62438095a5c7ae022881a
Reviewed-on: https://team-review.git.corp.google.com/c/368507
Reviewed-by: Russ Cox <rsc@google.com>
Reviewed-on: https://go-review.googlesource.com/c/154101
Reviewed-by: Bryan C. Mills <bcmills@google.com>
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A flag setting like -gcflags=-e applies only to the packages
named on the command line, not to their dependencies.
The way we used to implement this was to remember the
command line arguments, reinterpret them as pattern matches
instead of package argument generators (globs), and apply them
during package load. The reason for this complexity was to
address a command-line like:
go build -gcflags=-e fmt runtime
The load of fmt will load dependencies, including runtime,
and the load of runtime will reuse the result of the earlier load.
Because we were computing the effective -gcflags for each
package during the load, we had to have a way to tell, when
encountering runtime during the load of fmt, that runtime had
been named on the command line, even though we hadn't
gotten that far. That would be easy if the only possible
arguments were import paths, but we also need to handle
go build -gcflags=-e fmt runt...
go build -gcflags=-e fmt $GOROOT/src/runtime
go build -gcflags=-e fmt $GOROOT/src/runt...
and so on.
The match predicates usually did their job well, but not
always. In particular, thanks to symlinks and case-insensitive
file systems and unusual ways to spell file paths, it's always
been possible in various corner cases to give an argument
that evalutes to the runtime package during loading but
failed to match it when reused to determine "was this package
named on the command line?"
CL 109235 fixed one instance of this problem by making
a directory pattern match case-insensitive on Windows, but that
is incorrect in some other cases and doesn't address the root problem,
namely that there will probably always be odd corner cases
where pattern matching and pattern globbing are not exactly aligned.
This CL eliminates the assumption that pattern matching
and pattern globbing are always completely in agreement,
by simply marking the packages named on the command line
after the package load returns them. This means delaying
the computation of tool flags until after the load too,
for a few different ways packages are loaded.
The different load entry points add some complexity,
which is why the original approach seemed more attractive,
but the original approach had complexity that we simply
didn't recognize at the time.
This CL then rolls back the CL 109235 pattern-matching change,
but it keeps the test introduced in that CL. That test still passes.
In addition to fixing ambiguity due to case-sensitive file systems,
this new approach also very likely fixes various ambiguities that
might arise from abuse of symbolic links.
Fixes #24232.
Fixes #24456.
Fixes #24750.
Fixes #25046.
Fixes #25878.
Change-Id: I0b09825785dfb5112fb11494cff8527ebf57966f
Reviewed-on: https://go-review.googlesource.com/129059
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Alan Donovan <adonovan@google.com>
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To date the go command has always just treated the command line
package patterns as a []string, expanded by pattern matching into
another []string. As a result, the code is not always clear about
whether a particular []string contains patterns or results.
A few different important bugs are caused by not keeping
this distinction clear enough. This CL sets us up well for fixing those,
by introducing an explicit search.Match struct holding the
results of matching a single pattern.
The added clarity here also makes it clear how to avoid duplicate
warnings about unmatched packages.
Fixes #26925. (Test in followup CL.)
Change-Id: Ic2f0606f7ab8b3734a40e22d3cb1e6f58d031061
Reviewed-on: https://go-review.googlesource.com/129058
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Alan Donovan <adonovan@google.com>
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The current "go mod" command does too many things.
The design is unclear.
It looks like "everything you might want to do with modules"
which causes people to think all module operations go through
"go mod", which is the opposite of the seamless integration we're
going for. In particular too many people think "go mod -require"
and "go get" are the same.
It does make sense to put the module-specific functionality
under "go mod", but not as flags. Instead, split "go mod" into
multiple subcommands:
go mod edit # old go mod -require ...
go mod fix # old go mod -fix
go mod graph # old go mod -graph
go mod init # old go mod -init
go mod tidy # old go mod -sync
go mod vendor # old go mod -vendor
go mod verify # old go mod -verify
Splitting out the individual commands makes both the docs
and the implementations dramatically easier to read.
It simplifies the command lines
(go mod -init -module m is now 'go mod init m')
and allows command-specific flags.
We've avoided subcommands in the go command to date, and we
should continue to avoid adding them unless it really makes
the experience significantly better. In this case, it does.
Creating subcommands required some changes in the core
command-parsing and help logic to generalize from one
level to multiple levels.
As part of having "go mod init" be a separate command,
this CL changes the failure behavior during module initialization
to be delayed until modules are actually needed.
Initialization can still happen early, but the base.Fatalf
is delayed until something needs to use modules.
This fixes a bunch of commands like 'go env' that were
unhelpfully failing with GO111MODULE=on when not in a
module directory.
Fixes #26432.
Fixes #26581.
Fixes #26596.
Fixes #26639.
Change-Id: I868db0babe8c288e8af684b29d4a5ae4825d6407
Reviewed-on: https://go-review.googlesource.com/126655
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
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It's important for a smooth transition for non-module users
not to change operation in GOPATH/src by default in Go 1.11,
even if go.mod exists in a downloaded dependency.
Even so, users create go.mod and then are confused about
why 'go get' commands seem to behave oddly, when in fact
they are getting the old 'go get'.
Try to split the difference by printing a warning in 'go get'
when run in a tree that would normally be considered a
module if only it were outside GOPATH/src.
Change-Id: I55a1cbef127f3f36de54a8d7b93e1fc64bf0a708
Reviewed-on: https://go-review.googlesource.com/124859
Reviewed-by: Bryan C. Mills <bcmills@google.com>
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This CL corresponds to CL 123361, the final manual CL in that repo,
making this the final manual sync.
All future commits will happen in this repo (the main Go repo),
and we'll update x/vgo automatically with a fixed patch+script.
Change-Id: I572243309c1809727604fd704705a23c30e85d1a
Reviewed-on: https://go-review.googlesource.com/123576
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
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This CL corresponds to golang.org/cl/118096 (7fbc8df48a7)
in the vgo repo.
It copies the bulk of the code from vgo back into the main repo,
but completely disabled - vgo.Init is a no-op and vgo.Enabled
returns false unconditionally.
The point of this CL is to make the two trees easier to diff and
to make future syncs smaller.
Change-Id: Ic34fd5ddd8272a70c5a3b3437b5169e967d0ed03
Reviewed-on: https://go-review.googlesource.com/118095
Reviewed-by: Bryan C. Mills <bcmills@google.com>
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configuration
If a package is checked out in the right place, but uses, for instance,
an unusual Git remote configuration, don't refuse to update just because
cmd/go can't parse it. In most cases, `git pull -ff-only` (or the
equivalent in other VCSes) works just fine.
Updates #25432.
Change-Id: I1952a0e6e03f185f34029b186e1756c9549689e1
Reviewed-on: https://go-review.googlesource.com/113456
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Andrew Gerrand <adg@golang.org>
Reviewed-by: Rob Pike <r@golang.org>
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CL 109340 added “minimal module-awareness for legacy operation.”
One part of that is reinterpreting imports inside code trees with go.mod files
as using semantic import versioning, and converting them back to
legacy import paths by stripping the major version element
(for example, interpreting import "x.com/foo/v2/bar" as import "x.com/foo/bar").
This rewrite was not being applied during "go get", with the effect that once
you had the target code downloaded already, everything was fine,
but it didn't download and build successfully the first time.
Fixes #25687.
Change-Id: I3e122efdc8fd9a0a4e66f5aa3e6a99f90c7df779
Reviewed-on: https://go-review.googlesource.com/115797
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
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We want authors to be able to publish code that works with both
the current standard go command and the planned new go command
support for modules. If authors have tagged their code v2 or later,
semantic import versioning means the import paths must include a
v2 path element after the path prefix naming the module.
One option for making this convention compatible with original go get
is to move code into a v2 subdirectory of the root.
That makes sense for some authors, but many authors would prefer
not to move all the code into a v2 subdirectory for a transition and
then move it back up once we everyone has a module-aware go command.
Instead, this CL teaches the old (non-module-aware) go command
a tiny amount about modules and their import paths, to expand
the options for authors who want to publish compatible packages.
If an author has a v2 of a package, say my/thing/v2/sub/pkg,
in the my/thing repo's sub/pkg subdirectory (no v2 in the file system path),
then old go get continues to import that package as my/thing/sub/pkg.
But when go get is processing code in any module (code in a tree with
a go.mod file) and encounters a path like my/thing/v2/sub/pkg,
it will check to see if my/thing/go.mod says "module my/thing/v2".
If so, the go command will read the import my/thing/v2/sub/pkg
as if it said my/thing/sub/pkg, which is the correct "old" import path
for the package in question.
This CL will be back-ported to Go 1.10 and Go 1.9 as well.
Once users have updated to the latest Go point releases containing
this new logic, authors will be able to update to using modules
within their own repos, including using semantic import paths
with vN path elements, and old go get will still be able to consume
those repositories.
This CL also makes "go get" ignore meta go-import lines using
the new "mod" VCS type. This allows a package to specify both
a "mod" type and a "git" type, to present more efficient module
access to module-aware go but still present a Git repo to the old
"go get".
Fixes #24751.
Fixes #25069.
Change-Id: I378955613a0d63834d4f50f121f4db7e4d87dc0a
Reviewed-on: https://go-review.googlesource.com/109340
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
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Updates #23332
Change-Id: I964d36ed751ef1844ab6c40f61047297ff1443a3
Reviewed-on: https://go-review.googlesource.com/85797
Reviewed-by: Ian Lance Taylor <iant@golang.org>
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Fixes #21309.
Change-Id: I8ff1b0f37e34a3a4e9f8448d66a64fe3863d081f
Reviewed-on: https://go-review.googlesource.com/76250
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Rob Pike <r@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
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This reverts https://golang.org/cl/65930.
Fixes #22148
Change-Id: Ie0712621ed89c43bef94417fc32de9af77607760
Reviewed-on: https://go-review.googlesource.com/68430
Reviewed-by: Ian Lance Taylor <iant@golang.org>
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This can only lead to confusion.
Change-Id: Iae84c6404ab5eeb6950faa2364f97a017c67c506
Reviewed-on: https://go-review.googlesource.com/68110
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: David Crawshaw <crawshaw@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Simon Rawet <Simon@rawet.se>
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These are rarely used and can be computed on demand,
to make clear that they are never out of sync with the
lists in the non-internal Package fields.
Change-Id: I8c621dceaff1aeb39a3ed83f18e848adf14d7106
Reviewed-on: https://go-review.googlesource.com/56284
Reviewed-by: David Crawshaw <crawshaw@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
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strings.IndexByte was introduced in go1.2 and it can be used
effectively wherever the second argument to strings.Index is
exactly one byte long.
This avoids generating unnecessary string symbols and saves
a few calls to strings.Index.
Change-Id: I1ab5edb7c4ee9058084cfa57cbcc267c2597e793
Reviewed-on: https://go-review.googlesource.com/65930
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
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Fixes #10010.
Change-Id: Ib13ac28eafed72c456d8b5b6549015cdf5fdda94
Reviewed-on: https://go-review.googlesource.com/56190
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
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The existing docs states that, get looks for a branch or tag
that matches the locally installed version of Go.
First, this is only working for "go1", so it could be confusing.
Second, "If no such version exists it retrieves the most recent
version of the package". It's more the default branch, by git defaults,
rather than most recent version.
This should address the potential unclear parts.
Fixes #20320
Change-Id: Id7d727d88dc350c9902974b64fa28c3766f7e245
Reviewed-on: https://go-review.googlesource.com/45890
Reviewed-by: Ian Lance Taylor <iant@golang.org>
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Otherwise the packages will not pick up the way that -installsuffix is
changed by -buildmode and -race.
Fixes #20512.
Change-Id: Ieca32c958a531beb6331dff30d7e9a4998867dbb
Reviewed-on: https://go-review.googlesource.com/44630
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>
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