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In loadModFile with -mod=vendor, load the vendor list and use it to
initialize the module graph before calling updateRoots.
In updateLazyRoots with any mode other than "mod", return the original
*Requirements if no roots needed to be upgraded, even if there are
inconsistencies. This means 'go list -m -mod=readonly' and -mod=vendor
may succeed if there are duplicate requirements or requirements on
versions of the main module.
Fixes #47565
Change-Id: I4640dffc4a7359367cc910da0d29e3538bfd1ca4
Reviewed-on: https://go-review.googlesource.com/c/go/+/340252
Trust: Jay Conrod <jayconrod@google.com>
Trust: Bryan C. Mills <bcmills@google.com>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
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On Plan 9, locking a file requires a chmod call. In general, the go
command should not modify files in the overlay, even metadata. With
this change, we won't lock these files for reading.
The go command already reported errors when attempting to write these
files if they were in the overlay, but this change moves those checks
to the point of access for clearer error
messages. cmd/go/internal/lockedfile no longer imports
cmd/go/internal/fsys.
Fixes #44700
Change-Id: Ib544459dd6cf56ca0f7a27b3285f045f08040d7e
Reviewed-on: https://go-review.googlesource.com/c/go/+/333012
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Updates #40276
Change-Id: Ic192d51f9f0306e5c206c550ef02f6d4495d0851
Reviewed-on: https://go-review.googlesource.com/c/go/+/332569
Trust: Bryan C. Mills <bcmills@google.com>
Reviewed-by: Jay Conrod <jayconrod@google.com>
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I needed to also update TestScript/mod_sumdb_golang.
It had been relying on 'go list -mod=mod' to add both the go.mod and
go.sum entries for the named package, but when 'go get' actually adds
all of the needed dependencies, lazy loading kicks in and 'go list'
doesn't end up needing the checksums for go.mod files.
We didn't detect the skew before because the 'go list' command was
(unexpectedly) also adding the missing dependencies, which triggered a
deep scan of the complete module graph.
For #45979
Change-Id: Ica917dee22c83ffa71c6ad0f2e189f911b73edf4
Reviewed-on: https://go-review.googlesource.com/c/go/+/328231
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from direct ones
Fixes #45965
Change-Id: If5c0d7b29e9f81be0763f3fa68051d4ef5419990
Reviewed-on: https://go-review.googlesource.com/c/go/+/325922
Trust: Bryan C. Mills <bcmills@google.com>
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'go mod download' calls modload.LoadModFile early to find the main
module path in order to validate arguments. LoadModFile may write
go.mod and go.sum to fix formatting and add a go directive. This calls
keepSums, which, in eager mode, loaded the complete module graph in
order to find out what sums are needed to load the complete module
graph. If go.mod requires a lower version of a module than will be
selected later, keepSums causes the sum for that version's go.mod to
be retained, even though it isn't needed later after a consistent
go.mod is written.
This CL fixes keepSums not to load the graph if it hasn't already been
loaded (whether eager or lazy), addressing comments from CL 318629.
For #45332
Change-Id: I20d4404004e4ad335450fd0fd753e7bc0060f702
Reviewed-on: https://go-review.googlesource.com/c/go/+/322369
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Fixes #46141
Change-Id: I9d4032e75252ade9eaa937389ea97ef3fb287499
Reviewed-on: https://go-review.googlesource.com/c/go/+/321071
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Fixes #45025.
Change-Id: I70c2b745f764484e4b3a2824adc470f168fb2c50
Reviewed-on: https://go-review.googlesource.com/c/go/+/320310
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versions
For #46141
Updates #45094
Change-Id: I6553600c69273762a81795ef021c66f4e0872b6b
Reviewed-on: https://go-review.googlesource.com/c/go/+/321069
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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
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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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This change adds two possible upgrade paths for lazy loading:
1. Run 'go mod tidy -go=1.17'.
2. Starting in a module with no existing 'go' directive,
run any 'go' command that updates the go.mod file.
In the latter case, commands other than 'go mod tidy'
may leave the go.mod file *very* untidy if it had non-trivial
dependencies. (The 'go' invocation will promote all
implicit eager dependencies to explicit lazy ones,
which preserves the original module graph — most of which is
not actually relevant.)
'go mod tidy -go=1.17' can be used to enable lazy loading without
accidentally downgrading existing transitive dependencies.
'go mod tidy -go=1.16' can be used to disable lazy loading and clear
away redundant roots in a single step (if reducing the go version), or
to prune away dependencies of tests-of-external-tests (if increasing
the go version).
'go mod tidy -go=1.15' can be used to add dependencies of
tests-of-external-tests, although there isn't much point to that.
DO NOT MERGE
This change still needs an explicit test and a release note.
Fixes #45094
For #36460
Change-Id: I68f057e39489dfd6a667cd11dc1e320c1ee1aec1
Reviewed-on: https://go-review.googlesource.com/c/go/+/315210
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which checksums to add to go.sum
For #36460
Change-Id: I606314054bd9064f7c4053f56049fabbaec54143
Reviewed-on: https://go-review.googlesource.com/c/go/+/309189
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satisfied by lazy roots
For #36460
Change-Id: Ibdbaa893ded772617e22f12db7a0463604db5195
Reviewed-on: https://go-review.googlesource.com/c/go/+/308516
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For #36460
Updates #41297
Change-Id: I1b82176a45df499e52f1a3a0ffe23eab2a1ca86e
Reviewed-on: https://go-review.googlesource.com/c/go/+/265777
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special character
According to the code comment, \ should be treated as a path separator.
See fileNameOK in golang.org/x/mod/module/module.go.
Change-Id: I05e05246005191ecccfecf46848aba5cb1359956
Reviewed-on: https://go-review.googlesource.com/c/go/+/310429
Reviewed-by: Bryan C. Mills <bcmills@google.com>
Trust: Robert Findley <rfindley@google.com>
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to add modules for missing packages
editRequirements does a lot of work in order to respect the upper
bounds of mustSelect, and as a result it doesn't provide many promises
about conserving other things (like root dependencies).
When we add modules for missing packages, we aren't dealing with upper
bounds at all, so we would rather avoid the upper-bound overhead and
preserve the root-dependency invariants instead.
(*loader).updateRequirements does exactly that; it just needs to be
told about the additional dependencies to add.
For #36460
Change-Id: Ie0f2bc0dde18026bbd23e51357bb1d725d201680
Reviewed-on: https://go-review.googlesource.com/c/go/+/310791
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updating and tidying
In CL 293689, I fused the mvs.Reqs calls that were formerly in MinReqs
and TidyBuildList into a single function, updateRoots, in the hope
that it expressed a fundamental operation. As I have been working on
the lazy equivalents, I have come to realize that these functions are
deeply related but fundamentally different.
In order to help me reason about the two different roles, I am making
the two functions separate once more, but leaving them colocated in
the code.
For #36460
Change-Id: I851d6d81fbfd84f39411e0d076ee72a9909c60ee
Reviewed-on: https://go-review.googlesource.com/c/go/+/310629
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This eliminates some awkwardly-stateful outside calls to
modload.{Disallow,Allow,}WriteGoMod.
Perhaps more importantly, it gives the loader the opportunity to
reload packages and revise dependencies after the tidied requirements
are computed. With lazy loading, dropping an irrelevant requirement
from the main module's go.mod file may (rarely) cause other test
dependencies for packages outside the main module to become
unresolved, which may require the loader to re-resolve those
dependencies, which may in turn add new roots and increase the
selected versions of modules providing other packages.
This refactoring allows the loader to iterate between tidying the
build list and reloading packages as needed, making the exact
sequencing of loading and tidying an implementation detail of the
modload package.
For #36460
For #40775
Change-Id: Ib6da3672f32153d5bd7d653d85e3672ab96cbe36
Reviewed-on: https://go-review.googlesource.com/c/go/+/310181
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allowMissingModuleImports
For #36460
Change-Id: I50c7018a6841bba1a8c6f8f8eca150df1f685526
Reviewed-on: https://go-review.googlesource.com/c/go/+/310789
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Fixes #33767
Change-Id: Ia2d6dd32bcb0e142f59346232b3b1aa3babb034a
Reviewed-on: https://go-review.googlesource.com/c/go/+/306809
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The 'go mod tidy' hint was truncated due to a typo in CL 293689,
and that particular case was not covered by any existing test.
Updates #36460
Updates #40775
Change-Id: Ib6fa872a9dfdafc4e9a112e8add2ff5aecd2dbd0
Reviewed-on: https://go-review.googlesource.com/c/go/+/310089
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This change adds the depth constants 'lazy' and 'eager', but leaves
the go117EnableLazyLoading constant set to false so that the depth in
effect is still always 'eager'.
The go117EnableLazyLoading constant can be toggled to true once the
module loader has been updated to maintain the lazy-loading invariants
in the go.mod file. In the meantime, this will allow me to
progressively replace uses of go117LazyTODO with real conditions and
locally toggle lazy-mode on to see which tests are still failing
(or which behaviors are missing test coverage).
For #36460
Change-Id: Ifd358265a3903a5000003c2072f28171f336e15c
Reviewed-on: https://go-review.googlesource.com/c/go/+/308515
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However, still only trigger -mod=vendor automatically (and only apply
the more stringent Go 1.14 vendor consistency checks) if the 'go'
version is explicit. This provides maximal compatibility with Go 1.16
and earlier: Go 1.11 modules will continue not to fail vendor
consistency checks, but scripts that assume semantics up to Go 1.16
for unversioned modules will continue to work unmodified.
Fixes #44976
For #36460
Change-Id: Idb05ca320023f57249c71fc8079218e8991d1ff9
Reviewed-on: https://go-review.googlesource.com/c/go/+/308509
Trust: Bryan C. Mills <bcmills@google.com>
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requirements
This is intended to be a pure-refactoring change, with very little
observable change in the behavior of the 'go' command. A few error
messages have prefixes changed (by virtue of being attached to
packages or modules instead of the build list overall), and
'go list -m' (without arguments) no longer loads the complete module
graph in order to provide the name of the (local) main module.
The previous modload.buildList variable contained a flattened build
list, from which the go.mod file was reconstructed using various
heuristics and metadata cobbled together from the original go.mod
file, the package loader (which was occasionally constructed without
actually loading packages, for the sole purpose of populating
otherwise-unrelated metadata!), and the updated build list.
This change replaces that variable with a new package-level variable,
named "requirements". The new variable is structured to match the
structure of the go.mod file: it explicitly specifies the roots of the
module graph, from which the complete module graph and complete build
list can be reconstructed (and cached) on demand. Similarly, the
"direct" markings on the go.mod requirements are now stored alongside
the requirements themselves, rather than side-channeled through the
loader.
The requirements are now plumbed explicitly though the modload
package, with accesses to the package-level variable occurring only
within top-level exported functions. The structured requirements are
logically immutable, so a new copy of the requirements is constructed
whenever the requirements are changed, substantially reducing implicit
communication-by-sharing in the package.
For #36460
Updates #40775
Change-Id: I97bb0381708f9d3e42af385b5c88a7038e1f0556
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explicit 'go' directives
Fixes #45109
Updates #44976
Updates #36876
Change-Id: Icb00f8b6e0d4e076d82da1697e7058b9e7603916
Reviewed-on: https://go-review.googlesource.com/c/go/+/303229
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will be written
Then, write the 'go.mod' file with that version before further
processing. That way, if the command errors out due to a change in
behavior, the reason for the change in behavior will be visible in the
file diffs.
If the 'go.mod' file cannot be written (due to -mod=readonly or
-mod=vendor), assume Go 1.11 instead of the current Go release.
(cmd/go has added 'go' directives automatically, including in 'go mod
init', since Go 1.12.)
For #44976
Change-Id: If9d4af557366f134f40ce4c5638688ba3bab8380
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The new error message tells the user what was wrong (no go.mod found)
and directs them to 'go help modules', which links to tutorials.
Fixes #44745
Change-Id: I98f31fec4a8757eb1792b45491519da4c552cb0f
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If a canonical version is passed to fixVersion when loading the main
go.mod and that version don't match the module path's major version
suffix, don't call Query.
Query doesn't return a useful error in this case when the path is
malformed, for example, when it doens't have a dot in the first path
element. It's better to report the major version mismatch error.
Fixes #44494
Change-Id: I97b1f64aee894fa0db6fb637aa03a51357ee782c
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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
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Previously, commands that wrote go.sum (except 'go mod tidy') would
retain sums for zip files of directly required modules. Sums of
indirect dependencies wouldn't be retained unless they were used to
load packages.
With this change, sums for indirect dependencies will be retained if
they're available. This allows users to add missing sums with
'go mod download example.com/mod', which previously only worked for
directly required modules.
Note that 'go mod download' without arguments now adds sums for every
module in the build list. That matches 1.15 behavior.
For #41103
Change-Id: I4cce2bf1c73578dae836bdb5adb32da071554f1a
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We are trying to avoid by not automatically updating go.mod. The
suggestion should be that users actually add the dependencies they
need, and the command in an easily copy-pastable form now.
Fixes: #43430
Change-Id: I2227dab498fcd8d66184c94ebe9e776629ccadfd
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modload.Init now sets the default value for -mod if it wasn't set
explicitly. This happens before go.mod is loaded, so
modload.LoadModFile sets the default value again in order to enable
automatic vendoring.
Previously, cfg.BuildMod wasn't set at all if LoadModFile wasn't
called, as is the case for commands that run outside of a module
root. This problem only affected 'go install pkg@version' since other
commands are either forbidden in module mode or run with -mod=mod
(like 'go get' and 'go mod' subcommands).
This change also suppresses "missing sum" errors when -mod=readonly is
enabled and there is no module root.
Fixes #43278
Related #40278
Change-Id: I6071cc42bc5e24d0d7e84556e5bfd8e368e0019d
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'go get pkg@vers' will now add an explicit requirement for the module
providing pkg if that version was already indirectly required.
'go get mod@vers' will do the same if mod is a module path but not a
package.
Requirements promoted this way will be marked "// indirect" because
'go get' doesn't know whether they're needed to build packages in the
main module. So users should prefer to run 'go get ./pkg' (where ./pkg
is a package in the main module) to promote requirements.
Fixes #43131
Change-Id: Ifbb65b71274b3cc752a7a593d6ddd875f7de23b8
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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
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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
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Fixes #42891
Change-Id: I0cce4204a1c4959b896188a2ab3719c0507f95e6
Reviewed-on: https://go-review.googlesource.com/c/go/+/274172
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The Reqs function returns an mvs.Reqs implemention for the global
build list. The API that it presents assumes that the build list is
globally consistent (problematic for #40775) and readily available
(problematic for #36460).
Fortunately, it is no longer used outside of the modload package.
We can instead use individual instances of the unexported mvsReqs
struct, making the dependency on the global build list more explicit.
For #36460
For #40775
Change-Id: I8674442f2a86416b0bf9c3395cb591c1e724c9d2
Reviewed-on: https://go-review.googlesource.com/c/go/+/272129
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This change updates the lockedfile package to open files using the
new fsys.OpenFile function. The logic of fsys.Open has been moved into
fsys.OpenFile, and fsys.Open is now just a light wrapper around it.
For #39958
Change-Id: I552f1a45ac00ac06b5812008d17a61e610b4b113
Reviewed-on: https://go-review.googlesource.com/c/go/+/266797
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Previously, we would retain entries in go.sum for .mod files in the
module graph (reachable from the main module) and for .zip files
of modules providing packages.
This isn't quite enough: when we load a package, we need the content
of each module in the build list that *could* provide the package
(that is, each module whose path is a prefix of the package's path) so
we can diagnose ambiguous imports.
For #33008
Change-Id: I0b4d9d68c1f4ca382f0983a3a7e537764f35c3aa
Reviewed-on: https://go-review.googlesource.com/c/go/+/262781
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When 'go mod init' is run in an existing project, it may import
requirements from a vendor configuration file, but the requirements
may not be complete, and go.sum won't contain sums for module
zips. With -mod=readonly, the next build command is likely to fail.
'go mod init' will now suggest running 'go mod tidy' if there are .go
files or subdirectories in the current directory.
We could potentially run 'go mod tidy' automatically within
'go mod init', but it seems better to guide users to using 'go mod tidy'
as a separate command to fix missing dependencies.
For #41712
Updates #40278
Change-Id: Iaece607f291244588a732ef4c5d576108965ca91
Reviewed-on: https://go-review.googlesource.com/c/go/+/264622
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InitMod is split into two functions. LoadModFile parses an existing
go.mod file and loads the build list (or checks vendor/modules.txt for
consistency in vendor mode). CreateModFile creates a new go.mod file,
possibly inferring the module path and importing a vendor
configuration file.
Some logic is moved from runInit to CreateModFile. init-specific logic
is removed from other functions.
This CL shouldn't cause substantial differences in behavior, though
some error messages are slightly different.
For #41712
Change-Id: Ia684945cfcf5beca30bbb81e7144fc246c4f27ed
Reviewed-on: https://go-review.googlesource.com/c/go/+/264621
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Previously, if a go.mod file was present, and it only contained a
module directive, any module-aware command would attempt to import
requirements from a vendor configuration file like Gopkg.lock.
This CL removes that functionality. It was undocumented and untested,
and it can cause problems with -mod=readonly. It should never come up
for go.mod files created with 'go mod init', since they have a "go"
directive.
For #40278
Change-Id: I64c0d67d204560aa5c775d29553883d094fd3b72
Reviewed-on: https://go-review.googlesource.com/c/go/+/264620
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Previously, when running cmd/go tests, if the module root directory is
requested when modules are explicitly disabled, we printed a stack
trace in addition to the error message that's normally printed. The
stack trace isn't that useful, and it makes the actual error hard to
find.
Change-Id: I8230d668f3f16659f08d0d685124c41b4055c5b9
Reviewed-on: https://go-review.googlesource.com/c/go/+/263659
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This CL adds basic support for listing packages with overlays.
The new cmd/go/internal/fs package adds an abstraction for communicating
with the file system that will open files according to their overlaid paths,
and provides functions to override those in the build context to open
overlaid files. There is also some support for executing builds on packages
with overlays. In cmd/go/internal/work.(*Builder).build, paths are mapped
to their overlaid paths before they are given as arguments to tools.
For #39958
Change-Id: I5ec0eb9ebbca303e2f1e7dbe22ec32613bc1fd17
Reviewed-on: https://go-review.googlesource.com/c/go/+/253747
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'go install pkg@version' runs without a main module or a module root
directory. The -modfile flag cannot be used to set the module root
directory or to substitute a different go.mod file.
This error won't be reported if -modfile is set in
GOFLAGS. Unsupported flags there are generally ignored.
For #40276
Change-Id: I0b39b1fa9184c15c6e863b647d43c328710920f4
Reviewed-on: https://go-review.googlesource.com/c/go/+/258297
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This change replaces ImportPaths, ImportPathsQuiet, LoadALL, and
LoadVendor with a single LoadPackages function, with a LoadOpts struct
that more clearly documents the variations in behavior.
It also eliminates the cmd/go/internal/load.ImportPaths function,
which was undocumented and had only one call site (within its own
package).
The modload.LoadTests global variable is subsumed by a field in the
new LoadOpts struct, and is no longer needed for callers that invoke
LoadPackages directly. It has been (temporarily) replaced with a
similar global variable, load.ModResolveTests, which can itself be
converted to an explicit, local argument.
For #37438
For #36460
Updates #40775
Fixes #26977
Change-Id: I4fb6086c01b04de829d98875db19cf0118d40f8c
Reviewed-on: https://go-review.googlesource.com/c/go/+/255938
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Fixes #41330
Change-Id: Ib66087ac5e1eb827694915f21c32c4d88e1b9a7e
Reviewed-on: https://go-review.googlesource.com/c/go/+/255052
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Follow-up to CL 255719, fixing review comments.
Change-Id: I26d3cc622496c3902c6924cf2b746c50705c4d50
Reviewed-on: https://go-review.googlesource.com/c/go/+/255937
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Previously, modload imported load, but it mainly just did so in order
to install callbacks to the modload API. This was important during vgo
development, but there's no longer a strong reason to do this. Nothing
modload imports strongly depends on load, so there's little danger of
a dependency cycle.
This change deletes the callbacks in load and instead, makes load call
exported functions in modload directly. In the future, these functions
may have different signatures than their GOPATH counterparts.
Change-Id: Ifde5c3ffebd190b5bd184924ec447d272b936f27
Reviewed-on: https://go-review.googlesource.com/c/go/+/255719
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