Commit Graph

47 Commits

Author SHA1 Message Date
Robert Findley ec044b1a47 gopls: update dependencies following the v0.10.0 release
Update selected dependencies following the v0.10.0 release, excluding
sergi/go-diff and x/vuln.

Gofumpt@v0.4.0 requires go1.18, so link it selectively following the
pattern of staticcheck. While at it, clean up some things related to the
wiring of staticcheck and gofumpt support. Notably, in VS Code error
messages do not support formatting such as newlines or tabs.

Add a test for the conditional Gofumpt support.

For golang/go#56211

Change-Id: Id09fdcc30ad83c0ace11b0dea9a5556a6461d552
Reviewed-on: https://go-review.googlesource.com/c/tools/+/446736
Run-TryBot: Robert Findley <rfindley@google.com>
Reviewed-by: Hyang-Ah Hana Kim <hyangah@gmail.com>
gopls-CI: kokoro <noreply+kokoro@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
2022-11-04 16:52:27 +00:00
Alan Donovan 2af106efed gopls/internal/hooks: fixes to diff disaster logic
Previously, the disaster logic in the new diff implementation
would "encrypt" the before/after files using a monoalphabetic
substitution, which has been insecure since the 9th century.
Instead, save plain text, in file with mode 0600, and invite
the user to audit the file before sharing it with us.

Also, separate the two files using a NUL byte, not a newline,
which is highly ambiguous.

Also, in the JSON diff stats writer:
- print a warning if we can't create the log file.
  (The previous code was subtle--it stored a nil *os.File in
  an io.Writer, which caused Writes to fail with an error,
  in effect, silently.)
- Don't hold the mutex around the write operation.
- Fix minor off-by-one error (re: 15)
- Crash if JSON encoding fails; it "can't happen".

Change-Id: I9b6a4145451afd77594f0ef9868143634a9c4561
Reviewed-on: https://go-review.googlesource.com/c/tools/+/445580
Run-TryBot: Alan Donovan <adonovan@google.com>
Reviewed-by: Robert Findley <rfindley@google.com>
gopls-CI: kokoro <noreply+kokoro@google.com>
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2022-10-27 00:23:26 +00:00
Alan Donovan 60ddccae85 internal/diff: Apply: validate inputs
Apply now checks that its edits are valid
(not out of bounds or overlapping),
and reports an error if not.

It also sorts them, if necessary, using (start, end)
as the key, to ensure that insertions (end=start)
are ordered before deletions at the same point
(but without changing the relative order of insertions).

Two other implementations of the diff.Apply algorithm
have been eliminated. (One of them failed to sort edits,
requiring the protocol sender to do so; that burden
is now gone.)

Change-Id: Ia76e485e6869db4a165835c3312fd14bc7d43db2
Reviewed-on: https://go-review.googlesource.com/c/tools/+/439278
Auto-Submit: Alan Donovan <adonovan@google.com>
gopls-CI: kokoro <noreply+kokoro@google.com>
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Reviewed-by: Robert Findley <rfindley@google.com>
Run-TryBot: Alan Donovan <adonovan@google.com>
2022-10-07 14:24:20 +00:00
Alan Donovan d96b2388c6 internal/diff: simplify API, break span dependency
diff.TextEdit (now called simply Edit) no longer has a Span,
and no longer depends on the span package, which is really
part of gopls. Instead, it records only start/end byte
offsets within an (implied) file.

The diff algorithms have been simplified to avoid the need to
map offsets to line/column numbers (e.g. using a token.File).
All the conditions actually needed by the logic can be derived
by local string operations on the source text.

This change will allow us to move the span package into the
gopls module.

I was expecting that gopls would want to define its own
Span-augmented TextEdit type but, surprisingly, diff.Edit
is quite convenient to use throughout the entire repo:
in all places in gopls that manipulate Edits, the implied
file is obvious. In most cases, less conversion boilerplate
is required than before.

API Notes:
- diff.TextEdit -> Edit (it needn't be text)
- diff.ApplyEdits -> Apply
- source.protocolEditsFromSource is now private

Change-Id: I4d7cef078dfbd189b4aef477f845db320af6c5f6
Reviewed-on: https://go-review.googlesource.com/c/tools/+/436781
Run-TryBot: Alan Donovan <adonovan@google.com>
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Reviewed-by: Robert Findley <rfindley@google.com>
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2022-10-05 20:32:15 +00:00
Alan Donovan 9856077059 internal/diff: abolish errors
Computing the difference between two strings is logically an
infallible operation. This change makes the code reflect that. The
actual failures were unreachable given consistent inputs, but that was
hard to see from the complexity of the logic surrounding span.Span.
(The problem only occurs when converting offsets beyond the end of the
file to Spans, but the code preserves the integrity of offsets.)

gopls' "old" hooks.ComputeEdits impl (based on sergi/go-diff) now
reports a bug and returns a single diff for the entire file if it
panics.

Also, first steps towards simpler API and a
reusable diff package in x/tools:

- add TODO for new API. In particular, the diff package shouldn't care
  about filenames, spans, and URIs. These are gopls concerns.
- diff.String is the main diff function.
- diff.Unified prints edits in unified form;
  all its internals are now hidden.
- the ComputeEdits func type is moved to gopls (source.DiffFunction)
- remove all non-critical uses of myers.ComputeEdits. The only
  remaining one is in gopls' defaults, but perhaps that gets
  overridden by the default GoDiff setting in hooks, to BothDiffs
  (sergi + pjw impls), so maybe it's now actually unused in practice?

Change-Id: I6ceb5c670897abbf285b243530a7372dfa41edf6
Reviewed-on: https://go-review.googlesource.com/c/tools/+/436778
Run-TryBot: Alan Donovan <adonovan@google.com>
Reviewed-by: Robert Findley <rfindley@google.com>
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2022-10-05 20:30:46 +00:00
cui fliter 7f79a022cb gopls: use fmt.Fprintf
Change-Id: Ife7f3269df554d2ecb6d1ccf6d1c1fa6de49587c
GitHub-Last-Rev: 9faefaefc2cc344859edeb2912cc60e9f2be4850
GitHub-Pull-Request: golang/tools#406
Reviewed-on: https://go-review.googlesource.com/c/tools/+/438537
Reviewed-by: Robert Griesemer <gri@google.com>
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2022-10-04 16:29:17 +00:00
cui fliter 3dda4ba24c all: replace deprecated egrep with grep -E
egrep command is about to be deprecated, use grep -E instead.

Reference: https://pubs.opengroup.org/onlinepubs/9699919799/xrat/V4_xcu_chap04.html

Change-Id: Ib37f5b244ead4c2d46078bea34d4cb6363c48b1b
GitHub-Last-Rev: b1e16d0212d682c780668e62ac8659973bb11a9d
GitHub-Pull-Request: golang/tools#400
Reviewed-on: https://go-review.googlesource.com/c/tools/+/432295
Reviewed-by: Bryan Mills <bcmills@google.com>
Reviewed-by: Robert Findley <rfindley@google.com>
2022-09-23 13:31:09 +00:00
Hana (Hyang-Ah) Kim a8b9ed3e93 gopls/internal/lsp/source: remove Govulncheck from Hooks
Now lsp packages are moved to the gopls module where the vulncheck
implementation exists. We no longer need to inject govulncheck
through the hook.

Change-Id: Ia627f1abe4c626d254d3e72b778535d6cb1ab41e
Reviewed-on: https://go-review.googlesource.com/c/tools/+/429938
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2022-09-12 13:57:24 +00:00
Robert Findley b15dac2b88 gopls: migrate internal/lsp to gopls/internal/lsp
This CL was created using the following commands:

    ./gopls/internal/migrate.sh
    git add .
    git codereview gofmt

For golang/go#54509

Change-Id: Iceeec602748a5e6f609c3ceda8d19157e5c94009
Reviewed-on: https://go-review.googlesource.com/c/tools/+/426796
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2022-09-07 16:44:44 +00:00
Peter Weinberger 3d474c8905 internal/lsp/diff: new diff implementation to replace go-diff
The new implementation is based on Myers' paper, and is in the
package diff/lcs.

There is a new option newDiff, that can be set to 'old', 'new',
or 'both'. The default is 'both', although that may not be
the right choice for a release. See gopls/hooks/diff.go.
'both' runs both the old and new diff algorithm and saves some
statistics in a file in os.Tempdir(),

When (or if) the new code becomes the default, this logging (and
some internal checking) will be removed.

The new implementation has internal checking, which currently
panics. The code in gopls/hooks/diff.go tries to save an encrypted
(for privacy) version of the failing input.

The package diff/myers has not been replaced, but it could be.

Fixes golang/go#52966

Change-Id: Id38d76ed383c4330d9373580561765b5a2412587
Reviewed-on: https://go-review.googlesource.com/c/tools/+/396855
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2022-07-24 16:55:18 +00:00
Robert Findley 7cc24c2ba3 gopls: upgrade staticcheck to v0.3.0
Upgrade staticcheck to v0.3.0 to pick up support for generics. Since
this version only supports Go 1.17+, increase the version at which we
install staticcheck to 1.17 (from 1.15). This change is likely to cause
confusion for users on Go 1.16, so show a warning when setting
the "staticcheck" option to an unsupported value. Slightly refactor our
setting of options along the way.

Fixes golang/go#52159

Change-Id: Id9b4cee340e31988c64ca712d98573343aaf5848
Reviewed-on: https://go-review.googlesource.com/c/tools/+/396974
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2022-04-07 14:59:24 +00:00
Hana cd31eaad03 internal/lsp/command: add RunVulncheckExp
This is a command that runs govulncheck-like analysis.
This is highly experimental and can change any time,
so we mark it with the "Exp" suffix. Once the interface
becomes stable, we will rename this command.

It returns VulncheckResult that can be encoded as
a JSON message. The result includes all potentially
affecting vulnerabilities, and sample traces.

This feature is currently available only when gopls
is compiled with go1.18. Otherwise, the command will
return an error.

Updates golang/go#50577
Updates golang/vscode-go#2096

Change-Id: Ia37b0555f7bf98760292c9f68e50fb70dd494522
Reviewed-on: https://go-review.googlesource.com/c/tools/+/395576
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2022-03-24 19:25:58 +00:00
Daniel Martí 19fe2d77ce gopls: update xurls dependency, remove \b workaround
Update to v2.4.0, which brings optimizations and minor improvements.

Upstream fixed the issue with word breaks in v2.3.0,
released back in July 2021. For more, see:
https://github.com/mvdan/xurls/issues/49

In short, ASCII TLDs now require a word break in Relaxed again.
Note that non-ASCII TLDs don't require one, as that just breaks them.
So, in that sense, this is making non-ASCII TLDs work in gopls again.

Plus, we avoid wasting CPU cycles at init time by rebuilding the regexp.

Change-Id: Iddb34827b61594fa1f911143f1d7e2c67a6658c9
Reviewed-on: https://go-review.googlesource.com/c/tools/+/389814
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2022-03-04 09:11:28 +00:00
Robert Findley 5210e0ca15 gopls: wire in LangVersion and ModulePath for gofumpt formatting
If available, pass the LangVersion and ModulePath provided by
go/packages to gofumpt. This allows gofumpt to apply additional
formatting rules that require this information.

Also add a regression test for gofumpt formatting.

Fixes golang/go#51327

Change-Id: I47c8c96d595d62e1c444285ce69ce6a4e61fa74c
Reviewed-on: https://go-review.googlesource.com/c/tools/+/387634
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2022-02-24 18:08:50 +00:00
Daniel Martí 4f21f7a508 gopls: update gofumpt to v0.3.0
Also add a TODO inside the format.Options expression,
as we are not currently wiring up some information from the main go.mod.
The TODO comment contains a summary of what should be done.

Change-Id: Ibace6c36de4b729b5ba8b347f6f48f0a8fda695e
Reviewed-on: https://go-review.googlesource.com/c/tools/+/387374
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2022-02-23 14:43:16 +00:00
Rob Findley 251092de1b internal/lsp/source: compute imports text edits from scratch
Fix the imports text edits by computing it on first principles. This
fixes at least a couple bugs:

 - Incorrect handling of positions between \r and \n with windows line
   endings.
 - Incorrect computation of edits when the imports source prefix is
   synthetically terminated with just \n, but the actual source has
   \r\n.

This is an unsatisfying solution, necessary because of the interaction
of token.File with file termination (token.File does not capture this
information).

Efforts to fix token.File proved complicated, and this is causing
problems for our users, so I think we should do this for now.

For golang/vscode-go#1489

Change-Id: I235caf3960c7201af93800d65546fbab5c6e3f4b
Reviewed-on: https://go-review.googlesource.com/c/tools/+/319129
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2021-07-22 17:13:07 +00:00
Dominik Honnef c3e30ffe92 gopls/internal/hooks: add Staticcheck's quickfix category of checks
Staticcheck's new quickfix category contains optional code
refactorings, such as turning a chain of if/else-if into a switch
statement, or simplifying boolean expressions.

These checks produce diagnostics with the "hint" or "information"
severities. Most use "hint", which produces a subtle hint in VSCode's
UI that a refactoring is available. "information" produces a blue
underline and is only used for those checks that have a very high
likelyhood of improving code readability.

Change-Id: I8f5b4eca67eb6b4e45c17510459d83eb673384e3
Reviewed-on: https://go-review.googlesource.com/c/tools/+/322492
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2021-05-25 19:05:14 +00:00
Dominik Honnef 917abfb0e7 gopls: propagate Staticcheck's diagnostic severities
Each analyzer in Staticcheck is annotated with the appropriate
severity to use for its diagnostics. For example, most checks in SA*
produce warnings, but some produce errors (e.g. when passing an
invalid regular expression to regexp.Compile).

This will be especially important for a follow-up CL that enables
Staticcheck's new quickfix category, which contains optional
refactorings that shouldn't be flagged as warnings.

Change-Id: I6235303a3bb188ef79f52952c01e9585301a3270
Reviewed-on: https://go-review.googlesource.com/c/tools/+/322491
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2021-05-25 19:05:09 +00:00
Dominik Honnef b95d58a81b gopls/internal/hooks: update for Staticcheck 2021.1
Change-Id: I3b10339b4049453cd3d9393df79c333c1e4f7c82
Reviewed-on: https://go-review.googlesource.com/c/tools/+/322490
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2021-05-25 18:39:40 +00:00
Shoshin Nikita 799b6824f9 gopls/internal/hooks: respect the default checks of the staticcheck tool
Disable non-default checks by default. Also, update the regression
test because the previous version used a non-default check (ST1022).

Fixes golang/go#44712

Change-Id: I825cac8387b33307e529fc27ca2f54c2d0d50cc7
GitHub-Last-Rev: 3ad413a50d867fa266ccf7fd4b87a88888fbc0a7
GitHub-Pull-Request: golang/tools#303
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2021-04-15 21:16:26 +00:00
Heschi Kreinick 303d8bbb5c gopls/internal/hooks: compile URL regexp once
The URL regexp is apparently enormous and we spend 13 CPU-seconds
compiling it in the gopls version of the LSP tests.

Change-Id: Id291ce0f104aa02b5e38aad43fff8647ce1b5b98
Reviewed-on: https://go-review.googlesource.com/c/tools/+/297876
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2021-03-02 22:01:27 +00:00
Russ Cox 2363391a5b all: go fmt ./...
Part of //go:build change (#41184).
See https://golang.org/design/draft-gobuild

Not strictly necessary but will avoid gofmt changes later
as people edit these files.

Change-Id: I20749ed82e18938a305d9425d0739f0ea7bd24c0
Reviewed-on: https://go-review.googlesource.com/c/tools/+/294414
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2021-02-20 03:28:52 +00:00
Rebecca Stambler ed97357570 all: upgrade all dependencies, if possible
Change-Id: Ifce11f6d94b1c6b4231abffd848cf45a10c962df
Reviewed-on: https://go-review.googlesource.com/c/tools/+/288733
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2021-02-03 19:28:29 +00:00
Heschi Kreinick 514964b755 gopls/internal/hooks: improve license file test
Now that we're only including licenses for the things gopls actually
depends on, we don't need to access the network on the trybots, and we
can get rid of the go.sum check that adds a step to the release process.

Change-Id: I3d38334ea3a9c904dfa125157c7b0468a0699b54
Reviewed-on: https://go-review.googlesource.com/c/tools/+/286436
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2021-01-26 00:28:59 +00:00
Roland Shoemaker fe37c9e135 all: replace all usages of os/exec with golang.org/x/sys/execabs
This change ensures that packages using exec.LookPath or
exec.Command to find or run binaries do not accidentally run
programs from the current directory when they mean to run programs
from the system PATH instead.

Change-Id: I5907aa630ff64012395a7eb472967a477d90f12e
Reviewed-on: https://team-review.git.corp.google.com/c/golang/go-private/+/949438
Reviewed-by: Katie Hockman <katiehockman@google.com>
Reviewed-by: Russ Cox <rsc@google.com>
Reviewed-on: https://go-review.googlesource.com/c/tools/+/284773
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2021-01-19 22:25:03 +00:00
Heschi Kreinick 7905ceac4f internal/lsp/cmd: add licenses command
Add a "licenses" command that shows the licenses of included software.

As special cases, we print the Go license first, and the LSP
specification license second since we bundle a Go version of it.

Change-Id: I3575073766a458c214108643b2b550c407a118dd
Reviewed-on: https://go-review.googlesource.com/c/tools/+/282112
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2021-01-08 19:50:35 +00:00
Heschi Kreinick 9c811dba2c gopls/internal/hooks: create included licenses text
We're adding a command that shows the licenses of all the code we depend
on. Start by creating a (very kludgy) shell script to gather them into a
string constant. Hopefully something nicer will come along later, but
for now this works fine with our current dependencies.

There's no strong reason this needs to be in the gopls module but it
felt right and it needed to live somewhere.

Trybots don't have network access, so testing that the file is in sync
is a little tricky. For simplicity's sake, we bake the gopls go.sum into
the generated file, and if that goes out of sync we assume the licenses
need updating. That's an overapproximation, since a dependency update
doesn't necessarily mean a license change, but it's easy and we don't
update deps often.

Change-Id: I338834044078f7df25304fa50864716057ce308e
Reviewed-on: https://go-review.googlesource.com/c/tools/+/281858
Trust: Heschi Kreinick <heschi@google.com>
Run-TryBot: Heschi Kreinick <heschi@google.com>
gopls-CI: kokoro <noreply+kokoro@google.com>
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Reviewed-by: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>
2021-01-08 19:28:01 +00:00
Rebecca Stambler 008e477491 internal/lsp, gopls: recover from go-diff panics
This CL handles the panic in the sergi/go-diff library which has not
yet been resolved. We add an error return to the ComputeEdits function
and return an error if there is a panic. I'm not sure if this is the
best approach, but it does seem better than allowing the server to
crash.

A concern would be that the user wouldn't know why their code wasn't
being formatted, but hopefully they might look through the logs and
notice the error message. At least, other features would continue
working. The best fix will definitely be the fix for the panic, but that
is not yet available.

Threading through the error return was not pretty, but I thought it was
probably worth doing since it could be needed in other situations.

Updates golang/go#42927

Change-Id: I7f0c05eb296ef9e93b4de8ef071301cdb9dce152
Reviewed-on: https://go-review.googlesource.com/c/tools/+/278775
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2020-12-17 16:56:54 +00:00
Rebecca Stambler c537a342dd internal/lsp: pass options by reference instead of by value
We were previously behaving as though the slice/map values in the
options struct could be modified directly. The options should be cloned
before modification. Also, convert any usage of source.Options to
*source.Options.

Fixes golang/go#39592

Change-Id: Ib39f668bca0fa1038162206bd7793fd2049af576
Reviewed-on: https://go-review.googlesource.com/c/tools/+/254558
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Reviewed-by: Robert Findley <rfindley@google.com>
2020-09-16 22:53:23 +00:00
Rebecca Stambler 97363e29fc internal/lsp: handle staticcheck in didChangeConfiguration
As we have modified the ways that we control which analyzers get
executed for a given case, we have lost the behavior of enabling and
disabling staticcheck smoothly. This CL splits out the staticcheck
analyzers from the main group so that the "staticcheck" setting can
override whether or not a given staticcheck analysis is enabled.

Fixes golang/go#41311

Change-Id: I9c1695afe4a8f89cd0ee50a79e83b2f42a2c20cb
Reviewed-on: https://go-review.googlesource.com/c/tools/+/254038
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Reviewed-by: Robert Findley <rfindley@google.com>
2020-09-13 03:21:22 +00:00
Heschi Kreinick 6a8222ee25 gopls/doc: generate settings JSON, docs
gopls has many settings. We want to automatically generate
documentation, and we want to allow clients to perform their own
validation if they so desire.

Using all three of AST, type information, and reflection, generate a
JSON description of the settings and their default values. Add a gopls
command that prints it. Add a documentation generator that uses it to
write settings.md.

I assumed that everything not explicitly documented was experimental,
and moved it into that section. I also moved expandWorkspaceToModule to
experimental; I hope it's not long for this world, personally.

Along the way, rename many fields, make the enum matching case
insensitive, and add a stringer call so that the defaults print nicely.

Fixes golang/go#33544.

Change-Id: Ibb652002933e355ed3c6038d6ca48345b39b3025
Reviewed-on: https://go-review.googlesource.com/c/tools/+/252322
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2020-09-09 20:53:33 +00:00
Rebecca Stambler 62a0bb781d gopls, internal/lsp: support an extra formatting hook for gofumpt
This change reworks CL 240118 to apply gofumpt directly as a formatter,
not an analyzer. Depending on how gofumpt changes, we may be able to use
it as an analyzer in the future, but for now it's just easier to add it
as a formatting hook.

Fixes golang/go#39805

Change-Id: I227fde4b1916d8a82557f30dfca88e155136dff5
Reviewed-on: https://go-review.googlesource.com/c/tools/+/241985
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
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2020-07-13 21:42:47 +00:00
zikaeroh 0cc1aa72b3 gopls/internal/hooks, internal/lsp/source: only match full words in link regexes
The current URL regexes (including xurls) match links in any part of a
string. However, this leads to odd underlining within words which just
so happen to have valid domain names as substrings. For example, a
comment which contains "reflect.DeepEqual" will match the URL regex as
"reflect.de" is a domain name.

Ensure that the URLs only match full regex words by adding \b around the
expressions. For xurls, this is done by pulling the expression out of
Relaxed() and recreating the Regexp.

While I'm here, make the non-gopls module expression prefer the longest
match, as xurls does.

Change-Id: I403db970fa1661c443b0693c03f8dee114f8eaff
Reviewed-on: https://go-review.googlesource.com/c/tools/+/240738
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
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2020-07-02 04:49:44 +00:00
Dominik Honnef 332987a829 gopls/internal/hooks: don't run staticcheck's SA5011
SA5011 relies on facts from dependencies to avoid false positives.
However, gopls currently only loads export data for dependencies, it
does not compute facts.

SA5011 is unlike other analyzers in staticcheck, which may produce
false negatives if facts are missing, but no false positives.

Change-Id: I5063b701bbedca7b09d1894997f8c574fa497939
Reviewed-on: https://go-review.googlesource.com/c/tools/+/228119
Run-TryBot: Dominik Honnef <dominik@honnef.co>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
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2020-04-14 03:22:29 +00:00
Rebecca Stambler 3304cfb00f internal/lsp: temporarily disable type error analyzers by default
If we release gopls/v0.4.0 soon, we should keep these new analyzers off
by default. They were just merged, so they haven't been used enough to
be enabled, I think. We'll turn them on by default for gopls/v0.5.0.

Also, ended up creating a helper function to check if analysis has been
abled (which fixed a small bug in FindAnalysisError), and another helper
function to enable all analyses for testing purposes.

Updates golang/go#38212

Change-Id: I5ee94b3582dfc0863978650fc6ce51bfa0606c13
Reviewed-on: https://go-review.googlesource.com/c/tools/+/226962
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Reviewed-by: Rohan Challa <rohan@golang.org>
2020-04-02 16:54:32 +00:00
Rohan Challa 42235f6384 internal/lsp: add support for type error analyzers
This change adds support within gopls for analyzers that work with type errors to provide suggested fixes.

Updates golang/go#34644

Change-Id: Ia8929173752fda6bd84a9edaabd310e758f25fe8
Reviewed-on: https://go-review.googlesource.com/c/tools/+/222761
Run-TryBot: Rohan Challa <rohan@golang.org>
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2020-03-27 17:27:16 +00:00
Rohan Challa 8db92c5f61 internal/lsp/hooks: enable staticcheck hooks
Forgot to enable the staticcheck hooks when I created a struct for analyzers inside of the lsp (https://go-review.googlesource.com/c/tools/+/223662).

Change-Id: Ice7798089100107113741caed3ddc41d172830b4
Reviewed-on: https://go-review.googlesource.com/c/tools/+/225837
Run-TryBot: Rohan Challa <rohan@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Paul Jolly <paul@myitcv.org.uk>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2020-03-27 16:43:12 +00:00
Rohan Challa 02a6ca6dc3 internal/lsp: change disabledAnalyses setting to be general
This change removes the disabledAnalyses setting and replaces it with a more general feature named "analyses". This will allow users to opt in as well as opt out of analyzers that they do not find useful. This also updates some documentation to show users what analyzers gopls is using and which are enabled by default.

Change-Id: Id3239b4c4c9667e834f262c889270d14fdba0f93
Reviewed-on: https://go-review.googlesource.com/c/tools/+/223662
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2020-03-26 19:30:34 +00:00
Rebecca Stambler 2ee7536ab1 internal/lsp: remove nilness analyzer
The nilness analyzer requires SSA, which is very expensive to build and
uses a lot of RAM. It also seems to really shoot up memory usage when it
hits certain cases, which is causing a lot of problems for users.
Disable this analysis - we'll leave SSA to staticcheck.

Updates golang/go#36639

Change-Id: I46e67a6fd7828a5fddcd42d1aa00876f17c79e3d
Reviewed-on: https://go-review.googlesource.com/c/tools/+/219203
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2020-02-12 21:32:43 +00:00
Rebecca Stambler 6822f1ada4 internal/lsp: disable nilness analyzer, unless staticcheck enabled
Users with staticcheck enabled will be more tolerant of increased RAM
usage. We might be able to disable this check entirely once the next
version of staticcheck is released with a similar analysis (https://staticcheck.io/docs/checks#SA5011).

Change-Id: I1a844cc226e34e0f62222f12912797a6cc9d06e2
Reviewed-on: https://go-review.googlesource.com/c/tools/+/219018
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2020-02-11 20:49:38 +00:00
Rebecca Stambler 39095c1d17 gopls/internal/hooks: ignore a duplicate analysis from staticcheck
Hardcoded for now. Will need a better approach if more of these come up.

Fixes golang/go#34494

Change-Id: Id442d68fa16d81e747ad5ec951fb6b80fdb65f94
Reviewed-on: https://go-review.googlesource.com/c/tools/+/215118
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2020-01-17 06:52:30 +00:00
Rebecca Stambler 6b505debf4 gopls: use mvdan.cc/xurls for textDocument/documentLink
Our current implementation isn't robust, and it doesn't seem worth it to
invest significant effort in improving it when this library exists.

Also, make the protocol part of the default URL regex non-optional, as
the alternative is that any string of the format "foo.bar" will appear
to be a link.

Updates golang/go#33505

Change-Id: Ia430a1c193eded394f8af12050bdd4dc2a9ccc94
Reviewed-on: https://go-review.googlesource.com/c/tools/+/212517
Reviewed-by: Heschi Kreinick <heschi@google.com>
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2019-12-26 21:20:25 +00:00
Rebecca Stambler d7101b74a4 internal/lsp: set version correctly after textDocument/didOpen
The early return logic for didOpen events in
(*snapshot).invalidateContent was preventing the creation of a new
snapshot, which was in turn stopping the versions from being updated.

This exposed a fundamental issue in the way we were calculating
workspace diagnostics. Since we weren't waiting for diagnostics to be
completed for an entire snapshot before replying that the server had
been initialized, snapshots were being cloned without any type
information. For quickfix code actions, we assume that we have all
information cached (since we need to have sent the diagnostics that the
quickfix is mapped to), so we were not finding the cached analysis
results.

To handle this in the short-term, we key analyses by their names, and
then regenerate results as-needed for code actions. This is technically
more correct than simply assuming that we have the analyses cached. In a
follow-up CL, I will send a follow-up that will make sure that
snapshots "wait" on each other to be fully constructed before being
cloned.

Change-Id: Ie89fcdb438b6b8b675f87335561bf47b768641ac
Reviewed-on: https://go-review.googlesource.com/c/tools/+/208265
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Reviewed-by: Ian Cottrell <iancottrell@google.com>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2019-11-25 19:35:51 +00:00
Ian Cottrell 5889748991 internal/lsp: use options hooks to install diff driver
Change-Id: I2f94c2a68d0036a47ccac3fce07cf9f3b784d443
Reviewed-on: https://go-review.googlesource.com/c/tools/+/200558
Run-TryBot: Ian Cottrell <iancottrell@google.com>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-10-11 16:38:31 +00:00
Ian Cottrell a26de0c301 gopls: use go-diff for edit generation
this supports sub-line diffs and is much faster

Fixes golang/go#33003
Fixes golang/go#32586
Updates golang/go#31937

Change-Id: I02f82c75828e7e3ec804e8beee916893d4c14b3d
Reviewed-on: https://go-review.googlesource.com/c/tools/+/191018
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2019-10-10 20:18:25 +00:00
Ian Cottrell 71c3ad9cb7 gopls: adding static check to the new gopls module
Change-Id: Ic07741211632edb2d808f0e5fd213da3dfef5676
Reviewed-on: https://go-review.googlesource.com/c/tools/+/182179
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2019-09-23 16:54:24 +00:00
Ian Cottrell c426260dee gopls: add a hooks package
This allows us to hook functionality from the main tools repository with
alternate or extended implementations.

Change-Id: Ibc66cdd15ee80f1104a8464f1e28763a41d5765a
Reviewed-on: https://go-review.googlesource.com/c/tools/+/196319
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Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-09-20 02:37:04 +00:00