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Commit Graph

500 Commits

Author SHA1 Message Date
Rebecca Stambler
77f530d86f internal/lsp: handle deletion of file content
We had previously been treating file changes with no content in the same
way as the deletion of content. Now, we distinguish between the two.

Fixes golang/go#38424.

Change-Id: I44b338006af0c13a8a3f842844521789ea378470
Reviewed-on: https://go-review.googlesource.com/c/tools/+/243577
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2020-07-21 03:22:37 +00:00
Rebecca Stambler
9cbb971a18 internal/lsp: split only on the first = for Go environment variables
Follow-up from CL 243538.

Change-Id: I15ac8ba738fa5326b18f7b179bed8623f4c57cfd
Reviewed-on: https://go-review.googlesource.com/c/tools/+/243640
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2020-07-20 16:24:43 +00:00
Rebecca Stambler
e6549b8dc8 internal/lsp: don't re-run go env for every call to WriteEnv
This is unnecessary. It also saves a lot of time for the regtests.

Change-Id: Ifc12d4c8e0c215f336e958316d415bc7f30e5344
Reviewed-on: https://go-review.googlesource.com/c/tools/+/243538
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
2020-07-20 15:02:21 +00:00
Rebecca Stambler
58eba7e750 internal/lsp: refactor go.mod diagnostics to simplify the API
Currently, diagnostics for modules that are missing from the go.mod
appear in the Go files in which those modules are imported. As a result,
the diagnostics were previously calculated as part of the Go file
diagnostic calculations. This is convoluted and required passing around
an extra map.

This CL puts that logic in the ModTidyHandle where it belongs.
The diagnostics for the Go files are combined from the multiple sources.

Also, added a skipped test for golang/go#39784, since this CL was
originally intended to be a fix for that issue...

Change-Id: Ic0f9aa235dcd56ea131a2339de9801346f715415
Reviewed-on: https://go-review.googlesource.com/c/tools/+/242579
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-07-16 22:50:03 +00:00
Rebecca Stambler
43ed94694c internal/lsp: don't keep track of closed overlays
getFile still returns a FileHandle, even if the file doesn't exist on
disk. Work-around this by checking if the file exists before adding
the file handle to the map.

Fixes golang/go#38498

Change-Id: Ie02679068b37bf4f3d19966c6cfcf2361086b1de
Reviewed-on: https://go-review.googlesource.com/c/tools/+/242924
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-07-16 17:49:00 +00:00
Rebecca Stambler
4cea89713c internal/lsp: handle nil pointer in PackageStats
Fixes golang/go#40224

Change-Id: I9f3f194b1c115ff0242cbce89a36e20d9e21a41f
Reviewed-on: https://go-review.googlesource.com/c/tools/+/242797
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-07-15 19:57:38 +00:00
Rebecca Stambler
f8240f79c3 internal/lsp: add changeMethods logic to rename check
This logic is directly copied from the refactor/rename package. See
https://github.com/golang/tools/blob/master/refactor/rename/rename.go#L321.

Fixes golang/go#39269

Change-Id: Ibe335aab37c495d2a960cb9da254b24b6fbac8e8
Reviewed-on: https://go-review.googlesource.com/c/tools/+/242158
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
2020-07-13 19:50:33 +00:00
Rebecca Stambler
125cc70a40 internal/lsp: add new go.mod requires to files with unused require
This change addresses an underlying issue with the go.mod code, which is
that it was modifying go.mod files without cloning them. This could've
resulted in some ugly race conditions.

We also handle the fact that new dependencies weren't being added
cleanly to files that already had unused dependencies.

Fixes golang/go#39041

Change-Id: I96ee0052d8d29a25e24f0bda9688e780a0fa7442
Reviewed-on: https://go-review.googlesource.com/c/tools/+/241443
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-07-10 04:15:23 +00:00
Heschi Kreinick
31b9a74881 internal/lsp/cache: handle missing mod file
If the config changes in non-module mode, don't look at the nonexistant mod file.

I actually caught this case after review but didn't finish the job.

Fixes golang/go#40121.

Change-Id: Ic888f7eab5f882e6ca79b046b5a3fb37b3b19e5c
Reviewed-on: https://go-review.googlesource.com/c/tools/+/241520
Run-TryBot: Heschi Kreinick <heschi@google.com>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2020-07-08 18:08:30 +00:00
Heschi Kreinick
065b96d36c internal/lsp/cache: fix race in RunProcessEnvFunc
Changing build flags (-modfile) while work is happening in the
background causes races. Explicitly detect relevant configuration
changes and only modify the ProcessEnv then, when the resolver is
inactive after the call to ClearForNewMod.

This still leaves a very small window for a race: if refreshProcessEnv
has already captured env but not yet started priming the cache, it may
race with the modification. But I don't expect it to be a problem in
practice.

Fixes golang/go#39865.

Change-Id: I31c79f39be55975fee14aa0e548b060c46cdd882
Reviewed-on: https://go-review.googlesource.com/c/tools/+/241317
Run-TryBot: Heschi Kreinick <heschi@google.com>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-07-07 22:21:32 +00:00
Heschi Kreinick
416e8f4faf internal/imports: require valid options, move LocalPrefix up
CL 239754 eagerly initialized the environment. This turns out to be a
problem for gopls, which calls ApplyFixes with no ProcessEnv.
Reinitializing it every time seriously harmed the performance of
unimported completions. Move back to lazy initialization.

Working with invalid options has caused a lot of confusion; this is only
the most recent. We have to maintain backwards compatibility in the
externally visible API, but everywhere else we can require fully
populated options. That includes the source byte slice and the options.

LocalPrefix is really more of an Option than an attribute of the
ProcessEnv, and it is needed in ApplyFixes where we really don't want to
have to pass a ProcessEnv. Move it up to Options.

Change-Id: Ib9466c375a640a521721da4587091bf93bbdaa3c
Reviewed-on: https://go-review.googlesource.com/c/tools/+/241159
Run-TryBot: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-07-07 20:02:13 +00:00
Rebecca Stambler
682c4542fd all: update dependencies in go.mod file
CL 226639 changed the positions of the go.mod diagnostics (in a
negligible way), but the tests are quite brittle and can't handle the
different position. Rewrite this test as a regression test to handle it.

The special // indirect marker can be removed from the go/expect package
as a result, since it was only used in this one place.

Change-Id: I7d9a62e32e53d477838e65673635ed231c07b659
Reviewed-on: https://go-review.googlesource.com/c/tools/+/240691
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-07-06 23:19:48 +00:00
Rebecca Stambler
f01a4bec33 internal/lsp: support opening single files
This change permits starting gopls without a root URI or any workspace
folders. If no view is found for an opened file, we try to create a new
view based on the module root of that file. In GOPATH mode, we just
use the directory containing the file.

I wrote a regtest for this by adding a new configuration that gets
propagated to the sandbox. I'm not sure if this is the best way to do
that, so I'll let Rob advise.

Fixes golang/go#34160

Change-Id: I3deca3ac1b86b69eba416891a1c28fd35658a2ed
Reviewed-on: https://go-review.googlesource.com/c/tools/+/240099
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-07-01 22:10:12 +00:00
Muir Manders
1837592efa internal/lsp/source: speed up completion candidate formatting
Completion could be slow due to calls to astutil.PathEnclosingInterval
for every candidate during formatting. There were two reasons we
called PEI:

1. To properly render type alias names, we must refer to the AST
   because the alias name is not available in the typed world.
   Previously we would call PEI to find the *type.Var's
   corresponding *ast.Field, but now we have a PosToField cache that
   lets us jump straight from the types.Object's token.Pos to the
   corresponding *ast.Field.

2. To display an object's documentation we must refer to the AST. We
   need the object's declaring node and any containing ast.Decl. We
   now maintain a special PosToDecl cache so we can avoid the PEI call
   in this case as well.

We can't use a single cache for both because the *ast.Field's position
is present in both caches (but points to different nodes). The caches
are memoized to defer generation until they are needed and to save
work creating them if the *ast.Files haven't changed.

These changes speed up completing the fields of
github.com/aws/aws-sdk-go/service/ec2 from 18.5s to 45ms on my laptop.

Fixes golang/go#37450.

Change-Id: I25cc5ea39551db728a2348f346342ebebeddd049
Reviewed-on: https://go-review.googlesource.com/c/tools/+/221021
Run-TryBot: Muir Manders <muir@mnd.rs>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-07-01 04:11:22 +00:00
Rebecca Stambler
4bdfe1a3b7 internal/lsp/cache: handle a few possible panics in PackageStats
Change-Id: I50dbe8bf7d801e7325bdbe413368e85779511d85
Reviewed-on: https://go-review.googlesource.com/c/tools/+/240183
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-06-30 15:45:28 +00:00
Rob Findley
aa94e735be internal/lsp/source: add a new symbolStyle configuration option
Add a symbolStyle configuration option, and use it to parameterize the
following behavior when computing workspace symbols:

 + package (default): include package name in the workspace symbol.
 + full: fully qualify the symbol by import path
 + dynamic: use as the symbol the shortest suffix of the full path that
   contains the match.

To implement this, expose package name in the source.Package interface.
To be consistent with other handling in the cache package, define a new
cache.packageName named string type, to avoid confusion with packageID
or packagePath (if confusing those two identifiers was a problem, surely
it is a potential problem for package name as well).

Change-Id: Ic8ed6ba5473b0523b97e677878e5e6bddfff10a7
Reviewed-on: https://go-review.googlesource.com/c/tools/+/236842
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Paul Jolly <paul@myitcv.org.uk>
2020-06-26 17:13:37 +00:00
Rebecca Stambler
fadf93ffb2 internal/lsp: watch all files in the module and replace target
Previously, our file watching only considered the root directory of the
view, which may not include the entire module or its replaced
dependencies. Now we expand our watching to include the whole module.

As part of testing this, I noticed that VS Code's file watcher actually
only sends updates for files in the workspace, even if we request
notifications for all files in the module. I filed an issue to ask about
this: https://github.com/microsoft/vscode-languageserver-node/issues/641.

Change-Id: I9499d31aff273f69e9c117511e7985ff58b7fdc4
Reviewed-on: https://go-review.googlesource.com/c/tools/+/239198
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-06-25 21:08:52 +00:00
Heschi Kreinick
e31c80b82c all: rework goimports environment, support GOMODCACHE
This CL got away from me a little.

For a number of reasons, the existing goimports API of passing in values
for various GO* values was not working. For one, the number of necessary
variables kept growing. For another, we tried to avoid calling `go env`
in GOPATH mode by using `build.Default`, but that turns out to be buggy;
see golang/go#39838. And finally, it created massive confusion about
whether the values were intended to be read from the OS environment, or
fully evaluated by the `go` command.

There are only two users of the internal imports API, so there really
shouldn't need to be more than two modes. For the command line tool, we
have to call `go env` to deal with the `go/build` bug. So we just do it.
Tests use that same path, but can augment the enviroment to set
themselves up. In contrast, `gopls` needs to fully specify the
environment. It can simply pass in the fully evaluated GO* values.

Finally, make the change I was actually here to make: propagate
GOMODCACHE and use it where appropriate.

Fixes golang/go#39761.

Change-Id: I720c69839d91d66d98e94dfc5f065ba0279c5542
Reviewed-on: https://go-review.googlesource.com/c/tools/+/239754
Run-TryBot: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-06-25 17:33:20 +00:00
Rebecca Stambler
25775e59ac internal/memoize: add an error return to (*handle).Get
Fixes golang/go#36004

Change-Id: I8da7c21eaa9cf6ffac12aabdd6803d06781cef32
Reviewed-on: https://go-review.googlesource.com/c/tools/+/239564
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-06-24 16:33:19 +00:00
Rebecca Stambler
1745ac5bc6 internal/lsp: refactor various module-specific handles in cache
This change separates out different functions of mod handles.
Previously, we had ModHandle and ModTidyHandle. ModHandle was used to
parse go.mod files and get the results of `go mod why` and possible
dependency upgrades.

Now, we factor this out into 4 handles: ParseModHandle, ModWhyHandle,
ModUpgradeHandle, and ModTidyHandle. This allows each handle to be
specific to its own functionality. It also simplifies the code a bit,
as the handles can be written in terms of ParseModHandles instead of
FileHandles.

I may have some follow-up CLs to refactor the `go mod tidy` logic out of
the cache package, though I'm no longer certain that that's a good
choice.

Change-Id: I8e12299dfdda7bb61b05903d9aa474461d7f4836
Reviewed-on: https://go-review.googlesource.com/c/tools/+/239117
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-06-23 18:31:46 +00:00
Rebecca Stambler
20e05c1c8f internal/lsp: don't use -modfile for go mod commands
These are commands whose changes should be reflected in the existing
go.mod file, as they do not provide edits. Add a third way of running
the go command, explicitly without -modfile. Update the regression test
accordingly.

Change-Id: I866b5db83b504fae190e58c306c01a7a4296672d
Reviewed-on: https://go-review.googlesource.com/c/tools/+/239200
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-06-22 20:30:43 +00:00
Heschi Kreinick
4fd1c64487 internal/lsp/cache: fix ignored file check
The return of IgnoreFile. We continue using go list's ignore rules,
but only apply them to the part of the path underneath the source root.

This should be fixed to include replace targets once we have them.

Change-Id: I054fee8c12fc860a279b0d0c1fd670f44d78a63f
Reviewed-on: https://go-review.googlesource.com/c/tools/+/239288
Run-TryBot: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2020-06-22 19:29:24 +00:00
Heschi Kreinick
8b7669898d internal/lsp/debug: save per-package stats in memory debug files
The per-package stats have proven pretty useful, and I don't want to
have to teach users how to save them. Create zip files and add them in.

Since some users may be sensitive about revealing any information about
the code, generate two variants: one with package names, and one
without.

Change-Id: Icc5631b4cebbbabfdd2fcea4a4cdf4f205dbcab9
Reviewed-on: https://go-review.googlesource.com/c/tools/+/239037
Run-TryBot: Heschi Kreinick <heschi@google.com>
Reviewed-by: Robert Findley <rfindley@google.com>
2020-06-19 18:00:37 +00:00
Rebecca Stambler
6023b8da91 internal/lsp: use -modfile for import organization
Also add a regression test.

Fixes golang/go#39681.

Change-Id: I685fbe4255b9e8e067dacd84a6d464d0a2bbe1f1
Reviewed-on: https://go-review.googlesource.com/c/tools/+/238737
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-06-19 17:44:56 +00:00
Rob Findley
20370b0cb4 internal/lsp: honor GOPRIVATE in documentLinks and go.mod hovers
Several fixes related to GOPRIVATE handling and links:
 + In Go source, fix links matching GOPRIVATE for external modules.
   Previously, in these cases we'd try to match <mod>@v1.2.3/<suffix>,
   which wasn't the correct input into the GOPRIVATE matching algorithm.
 + Similarly check GOPRIVATE for go.mod require statement hovers.
 + Likewise, for documentLink requests (both mod and source).
 + Move the existing hover regtest to link_test.go, and expand to cover
   all these cases.

Along the way, I encountered a couple apparent bugs, which I fixed:
 + Correctly handle the case where there is only one require in a go.mod
   file. This was exercised by the regtest, so took some debugging.
 + Only format links [like](this) if the requested format is actually
   markdown.

Fixes golang/go#36998

Change-Id: I92011821f646f2a7449dcca619483f83bdeb54b0
Reviewed-on: https://go-review.googlesource.com/c/tools/+/238029
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-06-18 13:42:42 +00:00
Rebecca Stambler
d15173dcc7 internal/lsp/cache: separate modTidyHandle out of modHandle
While working in this code, I was confused by the fact that modHandle
and modData were used for both ModHandle and ModTidyHandle. Separate out
the two so it's a little more clear. This is mostly a copy-paste, with a
few fields renamed to simplify them.

Change-Id: I20ea11c32a624fd250eabf901d09ebb05fbad062
Reviewed-on: https://go-review.googlesource.com/c/tools/+/238337
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-06-18 03:14:02 +00:00
Rebecca Stambler
47c907e258 internal/lsp: use a new temporary go.mod for every go list call
Refactor internal/lsp/cache to use a new temporary go.mod file for each
go command invocation. This cleans up the abstraction in the source
package, as we no longer are aware of temporary go.mod files.

This will also fix the raciness of reusing the same temporary go.mod
file for each invocation.

Updates golang/go#37318.
Fixes golang/go#39504.

Change-Id: I90bc17a678b5df222ab598c8f7dbf6c6fdd393f6
Reviewed-on: https://go-review.googlesource.com/c/tools/+/237517
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-06-18 02:37:23 +00:00
Heschi Kreinick
6222995d07 internal/lsp: handle deletion of workspace packages
When a workspace package is deleted, we need to stop trying to load it.
Check that every workspace package still has at least one .go file when
we copy them between snapshots.

I think this is correct, but even if it's not, orphaned file loading
should patch it up.

Fixes golang/go#38977.

Change-Id: I0b11010a40aac09f619f54b5ba02e2467b15a36c
Reviewed-on: https://go-review.googlesource.com/c/tools/+/238028
Run-TryBot: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-06-17 16:12:49 +00:00
Heschi Kreinick
b7b89dcb81 internal/lsp/cache: support minimal module compatibility in GOPATH
In GOPATH mode, you can import example.com/foo even if it has a go.mod
that says its path is example.com/foo/v2. Adjust our import path
resolution to support that case.

Fixes golang/go#39560.

Change-Id: I758a2220c579c4374084365c3a78a3a2bbd14b01
Reviewed-on: https://go-review.googlesource.com/c/tools/+/238260
Run-TryBot: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-06-16 21:57:26 +00:00
Rebecca Stambler
6aa8f57aac internal/lsp: un-export (*snapshot).Config to limit it to cache
Limiting the Config to the view seems reasonable, considering that it is
only used to run the `go` command. I prefer just having the cache run
go commands, so that source doesn't have to deal with the environment.

This also enables CL 237517.

Change-Id: I639c082592de30e9682dc25cdd12c7751ddb4f97
Reviewed-on: https://go-review.googlesource.com/c/tools/+/237600
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-06-15 22:28:25 +00:00
Heschi Kreinick
a2fa627c4b internal/lsp/cache: don't skip x_tests
We were marking normal tests as workspace packages, but pruning x_tests.
Don't do that.

Fixes golang/go#39578.

Change-Id: Ia8eceea38e63ac17e40f50d6837de9c7a668469b
Reviewed-on: https://go-review.googlesource.com/c/tools/+/237943
Run-TryBot: Heschi Kreinick <heschi@google.com>
Reviewed-by: zikaeroh <zikaeroh@gmail.com>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-06-15 19:08:35 +00:00
Heschi Kreinick
4651fa3054 internal/lsp/debug: show per-package memory usage
Calculate and display very crude memory usage statistics. This is
complicated by various levels of sharing and indirection, so the numbers
should be taken with *large* grains of salt and interpreted mostly by
experts.

Still, the results are interesting and helpful.

Change-Id: Ia9aff974c7d5fddd63df0cfd5cecc08ead33cf84
Reviewed-on: https://go-review.googlesource.com/c/tools/+/236163
Run-TryBot: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
2020-06-12 20:10:52 +00:00
Rebecca Stambler
3c1b287bbd internal/lsp: await the initial workspace load in ModHandle
ModHandle races with the initial workspace load if the go.mod file does
not yet exist. We should await for the initial workspace load to
complete before proceeding with update codelenses, etc.

Part of trying to figure out the flakes in golang/go#39504.
Also a few staticcheck fixes, and fix the Windows line endings in
fill_struct.go, because `git gofmt` complains.

Change-Id: Ide21a47137390792d1afb924740cff0bb6f0b764
Reviewed-on: https://go-review.googlesource.com/c/tools/+/237419
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-06-12 18:21:55 +00:00
Rebecca Stambler
9001f16f58 internal/lsp: cancel the initial workspace load when view shuts down
The error messages from view cancellation clutter up the logs when
testing, especially if you're running a single subtest.

A few quick staticcheck fixes in the CL also.

Change-Id: Ia1ed5360ac754023c589ed526ec0ed3e94a79b2f
Reviewed-on: https://go-review.googlesource.com/c/tools/+/237637
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
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Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-06-12 18:06:40 +00:00
Heschi Kreinick
f520afa52e internal/lsp: remove Ignore feature
Ignore ignored the builtin package and files that start with _. The
latter should already be ignored by "go list". The former seems
like too much effort to me. People shouldn't edit random parts of the
stdlib, and ignoring changes to (e.g.) the Error interface seems like
the least of the trouble they can get themselves into.

Remove it for now. If we get complains I'll re-add it, probably by
rejecting the write entirely somewhere.

We incidentally relied on this in the identifier functions; change those
to treat the builtin package slightly more specially.

Change-Id: I005b02a66b1a987c50a3074d53a2d28ff07d3324
Reviewed-on: https://go-review.googlesource.com/c/tools/+/237597
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2020-06-11 22:55:14 +00:00
Heschi Kreinick
02f7de68dc internal/lsp/cache: vendored packages are not workspace packages
Most people aren't going to edit vendored packages; we don't need to
fully analyze them.

Fixes golang/go#38080.

Change-Id: I9c9a286b5340ecffe976b0ea652f1d3b4de4bd41
Reviewed-on: https://go-review.googlesource.com/c/tools/+/237598
Run-TryBot: Heschi Kreinick <heschi@google.com>
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Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-06-11 22:31:50 +00:00
Heschi Kreinick
ca43edf915 internal/lsp/cache: intermediate test variants aren't workspace packages
When you write a test in (say) the fmt package, you get a test variant
augmented with the test files. In many cases you also get test variants
of the things the fmt package depends on. The primary test variant,
(fmt [fmt.test]) is interesting to us, because it contains the tests.
But the intermediate variants (testing [fmt.test]) aren't -- the user
can only get to them indirectly. We certainly don't need to fully parse
them.

Treat intermediate test variants as non-workspace packages. This doesn't
accomplish much yet but paves the way for later optimizations.

Updates golang/go#36943.

Change-Id: I1a20abcd2d67767f07132a75a20f098be6f19a76
Reviewed-on: https://go-review.googlesource.com/c/tools/+/236397
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Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-06-11 22:26:57 +00:00
Heschi Kreinick
ecd3fc4348 internal/lsp: read files eagerly
We use file identities pervasively throughout gopls. Prior to this
change, the identity is the modification date of an unopened file, or
the hash of an opened file. That means that opening a file changes its
identity, which causes unnecessary churn in the cache.

Unfortunately, there isn't an easy way to fix this. Changing the
cache key to something else, such as the modification time, means that
we won't unify cache entries if a change is made and then undone. The
approach here is to read files eagerly in GetFile, so that we know their
hashes immediately. That resolves the churn, but means that we do a ton
of file IO at startup.

Incidental changes:

Remove the FileSystem interface; there was only one implementation and
it added a fair amount of cruft. We have many other places that assume
os.Stat and such work.

Add direct accessors to FileHandle for URI, Kind, and Version. Most uses
of (FileHandle).Identity were for stuff that we derive solely from the
URI, and this helped me disentangle them. It is a *ton* of churn,
though. I can revert it if you want.

Change-Id: Ia2133bc527f71daf81c9d674951726a232ca5bc9
Reviewed-on: https://go-review.googlesource.com/c/tools/+/237037
Run-TryBot: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-06-11 22:11:59 +00:00
Ian Cottrell
54cf04ef09 internal/lsp: decouple client and server debug
This uses log messages to convey information to the debug system, which
has the benefit of logging even if the debug pages are not active and
also not requiring systems to reach into the debug system or require
extra lifetime tracking Not all things are decoupled yet as there are a
couple of places (notably the handshaker) that read information out of
the debug system.

Change-Id: Iec1f81c34ab3b11b3e3d6e6eb39b98ee5ed0d849
Reviewed-on: https://go-review.googlesource.com/c/tools/+/236337
Run-TryBot: Ian Cottrell <iancottrell@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
2020-06-11 13:49:48 +00:00
Matthew Dempsky
2ee2e4c56a go/packages: move TypecheckCgo to packagesinternal
Updates golang/go#16623.
Updates golang/go#39072.

Change-Id: I6612cdac14faa5ad724ceb805e1d6c823b4046ff
Reviewed-on: https://go-review.googlesource.com/c/tools/+/237423
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
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2020-06-10 22:20:39 +00:00
Matthew Dempsky
51e3d70dba go/packages: use go115UsesCgo instead of UsesCgo
x/tools half of golang.org/cl/237417.

Updates #16623.
Updates #39072.

Change-Id: Ic31c2cf64dc1b71b70912b9641cf468f60d116f8
Reviewed-on: https://go-review.googlesource.com/c/tools/+/237418
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-06-10 21:22:23 +00:00
Ian Cottrell
ce53dc4445 internal/lsp: clean out the debug handling
This removes all the cache/session/view hooks from the lsp and instead
uses normal introspection from the client to find all the entities
rather than keeping shadow copies of the object graph in the debug page
handler.
This required the addition only of the ability to view the sessions open
on a cache and exposing the unique identifier for all the objects, both
of which are useful and reasonable things to have in the API anyway.

Change-Id: Ic19903e7b19832ca79290954ec373d4177789742
Reviewed-on: https://go-review.googlesource.com/c/tools/+/236197
Run-TryBot: Ian Cottrell <iancottrell@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
2020-06-06 01:49:14 +00:00
Rebecca Stambler
4d5ea46c79 internal/lsp: support go mod vendor as a command
In addition to adding a `go mod vendor` command option, which can be
exposed via an editor client frontend, we show a suggestion to users who
experience the "inconsistent vendoring" error message.

The main change made here is that we save the view initialization error,
and we return it if the view has absolutely no metadata. This seems
reasonable enough, but my fear is that it may lead to us showing
outdated error messages. I will spend some time improving the handling
of initialization errors in follow-up CLs.

Updates golang/go#39100

Change-Id: Iba21fb3fbfa4bca956fdf63736b397c47fc7ae44
Reviewed-on: https://go-review.googlesource.com/c/tools/+/235619
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
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Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-06-04 18:33:45 +00:00
Ian Cottrell
8a3674bff3 internal/lsp: change exit handling
Exit now closes the connection rather than exiting the process.
This allows things to shutdown gracefully, and removes special
cases. It also allows the tests to call CloseEditor instead of
just Shutdown, which prevents goroutine leaks.

Change-Id: I26121ba5d393ef74ce0e912611c8b3817e3691ea
Reviewed-on: https://go-review.googlesource.com/c/tools/+/231798
Reviewed-by: Robert Findley <rfindley@google.com>
2020-06-03 13:14:19 +00:00
Emrecan BATI
7521f6f425 internal/lsp/cache: show update codelens in go.mod when -mod=vendor
Ignore vendor folder while checking module updates to be able to capture
updates.

Fixes golang/go#38711

Change-Id: I522246459f98c238c2b5cd28e6028f2b94cde7d9
Reviewed-on: https://go-review.googlesource.com/c/tools/+/232477
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-05-19 17:58:26 +00:00
Michael Matloob
10921354bc go/packages: add a Module field to the Package struct
This change introduces Module and ModuleError struct types to the
packages package with the same types as defined in the cmd/go
documentation for module information output by go list (with the
exception of the Module type's Versions and Update fields).
go/packages will fill the module struct with the module information
output by go list. Drivers that support modules can also provide
module information by filling the Module fields in the packages in
their driverResponses.

Fixes golang/go#35921

Change-Id: Icbdf79869f09d26f6a01c3670146ace4f6ffa25e
Reviewed-on: https://go-review.googlesource.com/c/tools/+/234219
Run-TryBot: Michael Matloob <matloob@golang.org>
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2020-05-19 14:27:18 +00:00
Heschi Kreinick
d3bf790afa internal/lsp: add Regenerate Cgo code lens
Now that we support authoring cgo packages better, we need a way to
regenerate the C definitions. Doing it automatically is very difficult;
in particular, referencing a new symbol from the C package may require
regeneration, but we don't want to do that for every typo.

For now, give the user a button and make them push it. We attach a
code lens to the import "C" line. This is vulnerable to the usual
user-didn't-save glitches.

Updates golang/go#35721.

Change-Id: Iaa3540a9a12bbd8705e7f0e43ad0be1b22e87067
Reviewed-on: https://go-review.googlesource.com/c/tools/+/234103
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Reviewed-by: Robert Findley <rfindley@google.com>
2020-05-15 22:01:28 +00:00
Rob Findley
8ddc06776e internal/lsp/source: don't link to packages matching GOPRIVATE in hover
Currently, our hover text by default links point to public documentation
sites (e.g. pkg.go.dev). This doesn't make sense for private repos, so
hide the hovertext link when the import path matches GOPRIVATE.

Implementing this was a little messy. To be optimal I had to thread
the value of goprivate through cache.view, and to be correct I had to
duplicate some code from cmd/go internal.

Regtest will follow after https://golang.org/cl/232983 is submitted.

Updates golang/go#36998

Change-Id: I1e556471bf919fea30132d9642426a08fdb7f434
Reviewed-on: https://go-review.googlesource.com/c/tools/+/233524
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2020-05-15 19:36:02 +00:00
Heschi Kreinick
7d3b6ebf13 internal/lsp/cache: pass UsesCgo to go/types
In CL 229779 I enabled Cgo type checking for go/packages, but we don't
actually type check there. We need to enable it in our own type checking
too.

No test updates because the negative effects are relatively subtle and
caught by an upcoming regtest.

Change-Id: I31691d69eb104cdabfd4fbe0a14b1f3c9741eabb
Reviewed-on: https://go-review.googlesource.com/c/tools/+/234102
Run-TryBot: Heschi Kreinick <heschi@google.com>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2020-05-15 01:05:26 +00:00
Heschi Kreinick
0951661448 internal/lsp: use TypecheckCgo when possible
When on 1.15+, enable TypecheckCgo. This improves cgo support
significantly, but we'll still have trouble with newly-referenced C
identifiers and changes to the magic comment.

Updates golang/go#35721.

Change-Id: I44dc95ce2d91d552e1e66e3722dc4230ab59fedd
Reviewed-on: https://go-review.googlesource.com/c/tools/+/229779
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2020-05-13 17:53:51 +00:00