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51 Commits

Author SHA1 Message Date
Heschi Kreinick
6d582d504c internal/lsp/source: optimize computeFixEdits
In the common case that a file has imports, we're going to diff just the
import block. That means that ApplyFixes doesn't need to produce the
whole formatted file, which is a huge speedup. We will do more work twice
for files with no imports, but those are presumably pretty short.

Hat tip to Muir for pointing towards this in
https://go-review.googlesource.com/c/tools/+/209579/2/internal/imports/imports.go#87
even if I didn't catch it.

Updates golang/go#36001.

Change-Id: Ibbeb4d88c6505eac26a36994de514813606c8c79
Reviewed-on: https://go-review.googlesource.com/c/tools/+/210200
Run-TryBot: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-12-06 20:21:26 +00:00
Heschi Kreinick
5a103c92be internal/imports: make ApplyFixes work despite syntax errors
ApplyFixes is only used by gopls, which cares a lot about files with syntax
errors, and not at all about files that aren't structurally valid. Use
the standard ParseFile function instead of goimports' weird one.

Adding a test is impractical because it seems to break type checking of
whatever package it's in.

Fixes golang/go#35915.

Change-Id: Iaf0e331978415428a422d942a1e0c5f6e66dc8a1
Reviewed-on: https://go-review.googlesource.com/c/tools/+/209579
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-12-02 20:30:33 +00:00
Heschi Kreinick
66af5afb16 internal/lsp/source: give more imports names
Expose ImportPathToAssumedName (internally) and use it in an LSP
completion case that doesn't go through the usual imports code.

Fixes golang/go#35401.

Change-Id: If87912072e11e22c542f7474841e53467a33ef2b
Reviewed-on: https://go-review.googlesource.com/c/tools/+/206890
Run-TryBot: Heschi Kreinick <heschi@google.com>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-11-25 20:50:14 +00:00
Jay Conrod
298f0cb188 txtar: promote from internal
Rather than copying this package to another repository, let's promote
this one out of internal.

Change-Id: I6f9cc1ada1577a720905271f7471c3afe05a2b41
Reviewed-on: https://go-review.googlesource.com/c/tools/+/207905
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-11-19 22:48:55 +00:00
Heschi Kreinick
689d0f08e6 internal/imports: set import names on completion candidates
I forgot to set .Name on completion candidates. That meant that if the
package name didn't match the import path, you'd first get an import
without a name, then it would be added when you organized imports.

Change-Id: Ic374de872324effa6bc04c1440c659d7a182d17f
Reviewed-on: https://go-review.googlesource.com/c/tools/+/205503
Run-TryBot: Heschi Kreinick <heschi@google.com>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2019-11-05 23:13:37 +00:00
Heschi Kreinick
fda23558a1 internal/lsp/cache: only refresh imports cache every 30 seconds
Loading completion suggestions can be slow, especially in GOPATH mode
where basically anything can change at any time. As a compromise, cache
everything for 30 seconds. Specifically, after a completion operation
finishes, if the cache is more than 30 seconds old, refresh it
asynchronously. That keeps user-facing latency consistent, without
chewing up CPU when the editor isn't in use. It does mean that if you
walk away for an hour and come back, the first completion may be stale.

In module mode this is relatively benign. The only things the
longer caching affects are the main module and replace targets, and
relevant packages in those will generally be loaded by gopls, so they'll
have full, up-to-date type information regardless.

In GOPATH mode this may be more troublesome, since it affects
everything. In particular, go get -u of a package that isn't imported
yet won't be reflected until the cache period expires. I think that's a
rare enough case not to worry about.

Change-Id: Iaadfd0ff647cda2b1dcdead9254b5492b397e86e
Reviewed-on: https://go-review.googlesource.com/c/tools/+/205163
Run-TryBot: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-11-04 21:31:29 +00:00
Heschi Kreinick
c02c21e5e9 internal/imports: cache GOPATH, exports
We intend to use the GOPATH resolver's results during LSP
autocompletion. That means we have to be able to cache its data, same as
we do for modules. Convert it to use a dirInfoCache.

Cache exports in the dirInfoCache. Along the way, store exports as slices
rather than maps. We don't need the extra structure the vast majority of
the time, and the memory overhead is nontrivial.

Change-Id: If267d6b00da2163a960b93b2cf2088ec2538f73d
Reviewed-on: https://go-review.googlesource.com/c/tools/+/205162
Run-TryBot: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-11-04 21:31:17 +00:00
Heschi Kreinick
8266eea4ea internal/imports: provide export completions for unimported packages
Add a function that returns all the exported identifiers associated with
a package name that doesn't have an import yet. This will allow
completions like rand<> to return rand.Seed (from math/rand) and
rand.Prime (from crypto/rand).

Updates golang/go#31906

Change-Id: Iee290c786de263d42acbfabd76bf0edbf303afc9
Reviewed-on: https://go-review.googlesource.com/c/tools/+/204204
Run-TryBot: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-11-04 21:30:58 +00:00
Heschi Kreinick
7871c2d767 internal/imports: sort import candidates by "relevance"
When proposing packages to import, we can propose more relevant packages
first. Introduce that concept to the pkg struct, and sort by it when
returning candidates.

In all cases we prefer stdlib packages first. Then, in module mode, we
prefer packages that are in the module's dependencies over those that
aren't. We could go further and prefer direct deps over indirect too,
but I didn't have the code for that handy.

I also changed the alphabetical sort from import path to package name,
because that's what the user sees first in the UI.

Updates golang/go#31906

Change-Id: Ia981ee9ffe3202e2a68eef3a36f65e81849a4ac2
Reviewed-on: https://go-review.googlesource.com/c/tools/+/204203
Run-TryBot: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-10-30 22:54:52 +00:00
Bryan C. Mills
e26a8c8a3c internal/imports: set ctx.WorkingDir if such a field exists
CL 203820 removes an assumption in go/build that srcDir is in the main
module, since in general it need not be. That requires the use of some
other mechanism for callers to communicate the correct location of the
main module.

Fortunately, we already have a WorkingDir field on the ProcessEnv
struct that does exactly that. We can simply propagate it through if
the corresponding field is present on go/build.Context.

Updates golang/go#34860

Change-Id: Idabf9ae06d8383a72772d5a589fae1d10f206c01
Reviewed-on: https://go-review.googlesource.com/c/tools/+/203857
Reviewed-by: Heschi Kreinick <heschi@google.com>
2019-10-29 18:52:34 +00:00
Heschi Kreinick
dc9d807def internal/imports: re-enable TestStdlibNotPrefixed
Vendor mode is fully supported now and I forgot to revert this.

Change-Id: I2a5b69818944e87cfb85e00f0486ffb3754fe6a6
Reviewed-on: https://go-review.googlesource.com/c/tools/+/203280
Run-TryBot: Heschi Kreinick <heschi@google.com>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2019-10-24 21:22:50 +00:00
Heschi Kreinick
377bdac4e7 internal/imports: support vendoring in module mode
Previously, goimports half-supported vendor mode -- it searched the
module cache on some code paths and the vendor dir in others. That
seemed to work okay, probably because people happened to have a populated
module cache. In 1.14, it's much more likely that people will work
solely from the vendor directory.

In this CL we bite the bullet and fully support vendor mode. 1.14 makes
this particularly challenging by disabling list -m ... in vendor mode, and
by enabling it automatically under some circumstances. We need to mirror
that behavior, which means knowing whether we're running with 1.14, and
figuring out whether vendoring should be enabled given that. We collect
the information we need with a list -m -f query just on the main module.

If vendor mode is enabled, we throw away all the modules and replace
them with a single pseudo-module rooted at /vendor. Everything basically
works at that point.

Fixes golang/go#34826

Change-Id: Ia4030344d822d5a4a3bbc010912ab98bf2f5f95b
Reviewed-on: https://go-review.googlesource.com/c/tools/+/203017
Reviewed-by: Bryan C. Mills <bcmills@google.com>
2019-10-24 21:04:39 +00:00
Heschi Kreinick
c825e86a85 internal/imports: skip TestStdlibNotPrefixed
At tip, $GOROOT/src/go.mod is 1.14, $GOROOT/src/vendor exists, and so
vendor mode is automatically enabled. That causes golang/go#34826.

This will be fixed by my upcoming vendoring CL, but for now skip.

Updates golang/go#34826

Change-Id: I5fff51fff54cf83e6369ae76bf3b19cfb7b5ac15
Reviewed-on: https://go-review.googlesource.com/c/tools/+/203257
Run-TryBot: Heschi Kreinick <heschi@google.com>
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2019-10-24 19:18:02 +00:00
Heschi Kreinick
7178990c25 internal/imports: cache module information
To avoid proposing unusable completions, such as those in modules that
need a replace statement to be usable, we need to know what module a
directory is in. That involves walking up the directory tree to find a
go.mod file, which is expensive to do over and over. Really, we just
need to check if the directory we're in has a go.mod file, then use the
parent dir's results.

Add module information to the cache and use it when figuring out what
module a dir is in.

Change-Id: Ia74ba9b37d73fca5e6786a94c73c8fd71b591645
Reviewed-on: https://go-review.googlesource.com/c/tools/+/202541
Run-TryBot: Heschi Kreinick <heschi@google.com>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-10-21 22:41:28 +00:00
Heschi Kreinick
d2fffb4b84 internal/imports: cache things outside the mod cache
Since a user's module cache is generally going to be much bigger than
their main module, one would expect that caching just information about
the module cache would be sufficient. It turns out that's not correct.
When we discover something in the module cache, we have to make sure
that a different version of it isn't already in scope. Doing that can
require information about the main module or replace targets, so that
needs to be cached too.

Concretely, when I'm working in x/tools, if a scan discovers a version
of x/tools in the module cache, it should usually ignore that version.
But that might not be true in more complicated cases, especially those
involving nested modules whose boundaries change.

So, cache everything except GOROOT. Since the new data is mutable,
we store it separately from the module cache data so that it can be
discarded easily between runs.

Change-Id: I47364f6c0270fee03af8898fec6c85d1b9c8d780
Reviewed-on: https://go-review.googlesource.com/c/tools/+/202045
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-10-21 20:45:41 +00:00
Heschi Kreinick
eb46839a96 internal/imports: return non-stdlib candidates from GetAllCandidates
Scan most sources, including GOPATH, the module cache, the main module,
and replace targets as appropriate. Use the cached stdlib instead of
scanning GOROOT.

We heavily cache the contents of the module cache, so performance is
decent. But we have to look at all the modules not in the module cache
too to get the right versions of modules (see
(*ModuleResolver).canonicalize), which currently isn't cached at all,
even just for a single run. That ends up being pretty expensive.

The implementation changes are relatively small; add package name
loading to scan(), cache that result, and allow callers to control what
directories are scanned so that it can skip GOROOT.

I also cleared out most of the stdlib from the unimported completion
test and added a simple external completion to it for safety's sake.

Change-Id: Id50fd4703b1126be35a000fe90719e19c3ab84bf
Reviewed-on: https://go-review.googlesource.com/c/tools/+/199178
Run-TryBot: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-10-21 20:45:15 +00:00
Ariel Mashraki
1f7a813c0d tools/internal/imports: fix data race in packageInfo
Before this commit, when running imports.Process concurrently, the program
panics with a fatal error due to concurrent map iterations and map writes.

This CL fixes this by adding a copy of the map to the packageInfo structure.

Fixed #34895

Change-Id: If009e6108813f86495c7e20e69739186b8b236d7
Reviewed-on: https://go-review.googlesource.com/c/tools/+/200865
Run-TryBot: Heschi Kreinick <heschi@google.com>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2019-10-18 18:31:53 +00:00
Jay Conrod
8abd424004 internal/imports: skip TestModeGetmodeVendor
Test is broken by recent cmd/go vendoring changes. Skipping the test
case while we figure out what to do.

Updates golang/go#34826

Change-Id: I31a6f18e40420970251e25836edcf32c56c10ef5
Reviewed-on: https://go-review.googlesource.com/c/tools/+/200299
Run-TryBot: Jay Conrod <jayconrod@google.com>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
2019-10-10 17:12:13 +00:00
Heschi Kreinick
c886270503 internal/imports: don't prefix stdlib package with std/
When running in GOROOT/src, `go list -m all` shows the std package (or
cmd package) as the main module. This confuses goimports into adding
std/ or cmd/ at the beginning of import paths. Skip canonicalization for
paths under GOROOT.

Fixes golang/go#31814

Change-Id: Iff5cc7e2a2053e4cc87c1a579a4c47d856cd0a2e
Reviewed-on: https://go-review.googlesource.com/c/tools/+/195063
Run-TryBot: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-09-18 19:29:07 +00:00
Ainar Garipov
feee8acb39 all: fix more typos
Change-Id: I978ad5e1800ebfceb78aaced438331a8341715d4
Reviewed-on: https://go-review.googlesource.com/c/tools/+/194697
Reviewed-by: Toshihiro Shiino <shiino.toshihiro@gmail.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2019-09-11 15:13:14 +00:00
Heschi Kreinick
7f5965fd77 internal/imports: fix scanning GOROOT in module mode
Go 1.13 introduced a module in GOROOT/src. That triggered goimports to
think that it was an invalid module, usable only as a replace target,
because its declared module path "std" didn't match its apparent path
"src". The stdlib is always in scope, so skip the needs-replace check
for GOROOT.

Fixes golang/go#34199

Change-Id: I1199378b940cfedc04e9a4e943c46b9ffdf18446
Reviewed-on: https://go-review.googlesource.com/c/tools/+/194570
Run-TryBot: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-09-10 22:16:09 +00:00
Heschi Kreinick
d0542c01b0 internal/imports: add all interfaces in mkstdlib
In api/*.txt, interface declarations are represented with lines like:
  pkg container/heap, type Interface interface { Len, Less, Pop, Push, Swap }
or, when they have no exported methods:
  pkg go/ast, type Expr interface, unexported methods

The latter form confuses mkstdlib into thinking that it's a method
because of the extra comma, and then it skips the interface entirely.
Running this program is a matter of seconds once per release, so rather
than trying to fix the optimization, just remove it. The parsing logic
doesn't care about the extra lines.

And the corresponding change to the copy in lsp/testdata/unimported.

Updates golang/go#34199

Change-Id: Ic34b8a47537608401e4ef6683617d797f9f50f8a
Reviewed-on: https://go-review.googlesource.com/c/tools/+/194568
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
2019-09-10 20:25:02 +00:00
Heschi Kreinick
df93a1b922 internal/imports: fix mkstdlib, run for go1.13
And the corresponding change to the copy in lsp/testdata/unimported.

Change-Id: I604ae6d5217356e19bb18f7cbe69a8dd71e5f23e
Reviewed-on: https://go-review.googlesource.com/c/tools/+/194567
Run-TryBot: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
2019-09-10 19:51:17 +00:00
Heschi Kreinick
6b3d1c9ba8 internal/imports: ignore invalid mod cache entries
If someone puts something silly in their module cache, ignore it instead
of crashing.

Fixes golang/go#34027.

Change-Id: I114e10010bd6bc483f865a628dc2b331c3a34a11
Reviewed-on: https://go-review.googlesource.com/c/tools/+/193268
Run-TryBot: Heschi Kreinick <heschi@google.com>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-09-05 17:34:53 +00:00
Bryan C. Mills
311ec0312e all: skip more memory-intensive tests on linux-arm
Updates golang/go#32834

Change-Id: I9844dc09d9a6eb2e79a0b28a1e69ed018bfa1bff
Reviewed-on: https://go-review.googlesource.com/c/tools/+/192578
Run-TryBot: Bryan C. Mills <bcmills@google.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2019-08-30 17:05:41 +00:00
Bryan C. Mills
c17b040389 all: skip tests if required tools are not found
Fixes golang/go#33950

Change-Id: Iefcb757e773bc052793611c099c25a457fd7e243
Reviewed-on: https://go-review.googlesource.com/c/tools/+/192400
Run-TryBot: Bryan C. Mills <bcmills@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-08-30 15:40:57 +00:00
Suzy Mueller
340205e581 internal/imports: skip scanned module cache dirs
Packages found in the module cache do not change. When we encounter a
directory we have already processed in the module cache, skip that
directory and add the packages that have already been computed.

Change-Id: Ib1bf0bf22727110b8073b415b145034acceb6787
Reviewed-on: https://go-review.googlesource.com/c/tools/+/186921
Run-TryBot: Suzy Mueller <suzmue@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2019-08-29 21:03:13 +00:00
Suzy Mueller
ee1fc86af2 internal/imports: use cache of mod cache pkgs in find packages
To check if a package is in a module that is in scope, the module
resolver checks if there are Go files that would be included in a
package in the directory matching the import path in scope.

If this directory is in the module cache and we have saved it as a
package, we know this directory contains Go files, and do not have to
read the directory.

Change-Id: I7c9365ce42c760ab95bc68b036212120895c89fb
Reviewed-on: https://go-review.googlesource.com/c/tools/+/186922
Run-TryBot: Suzy Mueller <suzmue@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2019-08-29 20:29:44 +00:00
Suzy Mueller
857b4dd9f8 internal/imports: avoid walking dir for mod file in mod cache
The root of the module containing a package in the module cache can be
determined by looking at the directory path. Use this instead of
scanning up the file tree to find the mod file of a package from a
module cache. The go command prunes nested modules before populating
the module cache, so there is only one go.mod within each module.

Change-Id: I434a04350ef3ca2f44b7ffd08ccc5afe4209654f
Reviewed-on: https://go-review.googlesource.com/c/tools/+/190906
Run-TryBot: Suzy Mueller <suzmue@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2019-08-29 20:29:07 +00:00
Suzy Mueller
324b35332a internal/imports: save information about the module cache
The module cache can only be added to, so any information discovered
about directories that are within a module in the module cache will
not change. Store the information we have discovered about the module
cache.

Updates #32750

Change-Id: I56c88f03f6a364221198fb032b139208497cd0e5
Reviewed-on: https://go-review.googlesource.com/c/tools/+/188762
Reviewed-by: Heschi Kreinick <heschi@google.com>
2019-08-20 18:54:49 +00:00
Suzy Mueller
d0b4265052 internal/imports: get candidate imports
This exposes the candidate imports that are discovered, even if there is
not a particular reference that requires it to be imported. Currently,
this only produces results for standard library packages.

This is useful for autocompletion on unimported packages.

Change-Id: Iafd883153d451a0ef1dae29b24d4d48530c855f7
Reviewed-on: https://go-review.googlesource.com/c/tools/+/189999
Run-TryBot: Suzy Mueller <suzmue@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2019-08-16 16:26:37 +00:00
Suzy Mueller
ea4142463b internal/imports: merge import declarations
When an import is added to the ast, the import declarations are merged
together into the first import declaration. Since this is a part of
the formatting functionality of goimports, do this during formatting
regardless.

The merging pass was added to astutil.AddNamedImport in order to address
issue golang/go#14075. This joined imports from other blocks into the first
import declaration, so that a single block of imports isn't split across
multiple blocks.

This functionality is more of a formatting change than a fix imports
change, in line with sorting the imports, which occurs even when
FormatOnly. The formatting was only applied when an import was added
(not renamed or deleted). This change makes formatting by goimports
more consistent across runs and is not dependent on the exact fixes
that need to be applied.

Change-Id: Icb90bf694ff35e2d6405a3d477cf82fcd3e697e0
Reviewed-on: https://go-review.googlesource.com/c/tools/+/189941
Run-TryBot: Suzy Mueller <suzmue@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2019-08-14 23:54:02 +00:00
Suzy Mueller
578fe56564 internal/imports: use the resolver to load exports
Have the imports resolvers load the exports for packages. This allows
each resolver to provide its own implementation of loading exports,
beyond reading from the directory.

Change-Id: I813f2ca59271a1698874556e8771243ac008f46f
Reviewed-on: https://go-review.googlesource.com/c/tools/+/188759
Run-TryBot: Suzy Mueller <suzmue@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2019-08-14 23:51:36 +00:00
Suzy Mueller
4cb0cfd181 internal/imports: test exported functions with nil args
Test the api of the internal imports package to make sure that it does
not crash when given nil as opts or Env.

Change-Id: I0127d550a49f63040efb16c07e8cff8b599bbe3c
Reviewed-on: https://go-review.googlesource.com/c/tools/+/190000
Reviewed-by: Heschi Kreinick <heschi@google.com>
2019-08-14 23:42:26 +00:00
Suzy Mueller
2ad8dc80bc internal/imports: return initialized options
Whent the pointer is nil, changing its value does not fix the returned
options. Return the new pointer so it can be used.

Change-Id: Ie17fe5c47b48b4a77ffb17b974a5c90e3b44df5e
Reviewed-on: https://go-review.googlesource.com/c/tools/+/189998
Run-TryBot: Suzy Mueller <suzmue@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2019-08-12 22:09:39 +00:00
Suzy Mueller
4147ede4f8 internal/imports: fix setting default options
This fixes a nil pointer bug that occurs when opt is nil.

If nil is provide as opt to the internal/imports package, use the
default options settings.

Also check separately that Env is non-nil, as this would also cause
a crash.

Change-Id: I9a43b219b31ba80b7cb8111437f211cb72f1ca18
Reviewed-on: https://go-review.googlesource.com/c/tools/+/189939
Reviewed-by: Heschi Kreinick <heschi@google.com>
2019-08-12 19:12:14 +00:00
Suzy Mueller
5f95ed5921 internal/imports, internal/lsp: quick fix import errors
Get quick fixes for the diagnostics related to import errors. These
fixes add, remove, or rename exactly one import.

This change exposes the individual fixes found by the imports package,
and then applies each of them separately to the source.  Since applying each
fix requires a new ast anyway, we pass in the source to be parsed each time.

Change-Id: Ibcbfa703d21b6983d774d2010716da8c25525d4f
Reviewed-on: https://go-review.googlesource.com/c/tools/+/188059
Run-TryBot: Suzy Mueller <suzmue@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-08-01 20:53:47 +00:00
Suzy Mueller
1e85ed8060 internal/imports: fix typos in documentation
Fix typos and fix descriptions of methods where the behavior described
in the comment is not implemented by that method.

Change-Id: I2c34caff43399dcb4f0e5e41b67189d8d8404fd5
Reviewed-on: https://go-review.googlesource.com/c/tools/+/184697
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2019-07-31 21:41:59 +00:00
Jay Conrod
5a5cfefe1f x/tools/internal/imports: don't load package names for empty list
goimports should not attempt to load package names for an empty list
of packages. 'go list' interprets an empty argument list as '.', which
may or may not be a package.

Fixes golang/go#33175

Change-Id: Id8df148432437295905c52f2d5fb73d890277569
Reviewed-on: https://go-review.googlesource.com/c/tools/+/188379
Run-TryBot: Jay Conrod <jayconrod@google.com>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2019-07-31 21:28:42 +00:00
Christian Muehlhaeuser
2e34cfcb95 internal/import: strings.Trim expects a cutset, not a string
strings.Trim treats the second parameter as a set of characters you
want to trim. It does not look for an entire string to trim.

This fix will maintain the current behavior, simply eliminating the dupe
character in the set.

Should we instead mean to really trim the entire string, this needs a
different fix.

Change-Id: Id3fa4105421819edc6a898efb1ffab26c8cea67a
GitHub-Last-Rev: 198e429869711ee1510fffe5a993acb07eff4502
GitHub-Pull-Request: golang/tools#142
Reviewed-on: https://go-review.googlesource.com/c/tools/+/187497
Reviewed-by: Ian Cottrell <iancottrell@google.com>
Reviewed-by: Heschi Kreinick <heschi@google.com>
Run-TryBot: Ian Cottrell <iancottrell@google.com>
2019-07-25 16:12:31 +00:00
Rebecca Stambler
72478f3938 internal/imports: disable go/packages-incompatible tests
A recent change to the go command broke these tests. Mark them as
go/packages incompatible for now, until we have time to fix them.

Updates golang/go#33175

Change-Id: Ib4c594bd032107fb1245bfe18fc80392fbab0730
Reviewed-on: https://go-review.googlesource.com/c/tools/+/186838
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-07-18 23:15:46 +00:00
Suzy Mueller
82a3ea8a50 internal/imports: save scanned module cache results
Save the packages found when scanning of the module cache.
The computed package may have a different import path due
to replace directives, so this needs to be updated
when the moduleResolver is initialized again.

Change-Id: Ib575fcc59b814ff263b431362df3698839a282f6
Reviewed-on: https://go-review.googlesource.com/c/tools/+/186301
Run-TryBot: Suzy Mueller <suzmue@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2019-07-18 20:03:17 +00:00
Suzy Mueller
fdb8f0bb4e internal/lsp: cache the imports ProcessEnv across imports calls
The imports ProcessEnv contains cached module and filesystem state. This change
allows gopls to use the same ProcessEnv and resolver across multiple calls to the
internal/imports library.

A ProcessEnv belongs to a view, because the cached module state depends
on the module that is open in the workspace.

Since we do not yet track whether the 'go.mod' file has changed, we
conservatively reset the cached state in the module resolver before
every call to imports.Process.

Change-Id: I27c8e212cb0b477ff425d5ed98a544b27b7d92ee
Reviewed-on: https://go-review.googlesource.com/c/tools/+/184921
Run-TryBot: Suzy Mueller <suzmue@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2019-07-16 21:50:18 +00:00
Suzy Mueller
9bea2ecb95 internal/imports: refactor to split finding and applying fixes
A pass is responsible for fixing the imports of a given file. It now
finds the necessary changes to make without applying the result to the
ast, which may be desirable to give a user more control about what
changes will be applied to their program. This change splits the process
of finding the fixes from making the modifications to the ast to allow
this functionality to be easily possible.

Change-Id: Ibf8ca247c35539f91de4be90c634f0db9a939d07
Reviewed-on: https://go-review.googlesource.com/c/tools/+/184197
Reviewed-by: Heschi Kreinick <heschi@google.com>
Run-TryBot: Suzy Mueller <suzmue@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2019-07-02 14:45:09 +00:00
Rebecca Stambler
38ae2c8f64 internal/lsp, internal/imports: use the internal goimports library
This change modifies gopls to use the internal goimports library, which
allows us to manually configure the ProcessEnv. We also add a logger to
the ProcessEnv to allow this change not to conflict with gopls's logging
mechanism.

Fixes golang/go#32585

Change-Id: Ic9aae69c7cfbc9b1f2e66aa8d812175dbc0065ce
Reviewed-on: https://go-review.googlesource.com/c/tools/+/184198
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2019-07-01 19:45:22 +00:00
Heschi Kreinick
0945d3616f internal/imports: suggest x for x_tests
golang.org/cl/170238 forgot that it's okay for an x_test to import a
package in the same directory. Only skip the candidate if the package
we're looking for has the same name as the one being fixed.

Fixes golang/go#32440

Change-Id: I7806d9f4174ca217ac83887da5e23b28cd102095
Reviewed-on: https://go-review.googlesource.com/c/tools/+/181338
Run-TryBot: Heschi Kreinick <heschi@google.com>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2019-06-10 21:48:47 +00:00
Heschi Kreinick
e9a20a1396 internal/imports: actually cache resolvers
I forgot to actually save the resolver instances...

Change-Id: Ieff4f22d29038895dc15be97491476f414544a5c
Reviewed-on: https://go-review.googlesource.com/c/tools/+/181337
Run-TryBot: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-06-10 16:54:38 +00:00
Heschi Kreinick
755ce86c76 internal/imports: fix TestNoMainModule
https://golang.org/cl/179998 made it an error to run go mod download
without args and without a go.mod. Don't do that.

Fixes golang/go#32488

Change-Id: Icd845feb8fecae69b6a8363438bb9ee546a310dc
Reviewed-on: https://go-review.googlesource.com/c/tools/+/181298
Run-TryBot: Heschi Kreinick <heschi@google.com>
Reviewed-by: Jay Conrod <jayconrod@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2019-06-07 22:46:22 +00:00
Heschi Kreinick
d487f80763 all: GOSUMDB=off for tests that use fake modules
Users of packagestest will create modules that don't exist on the
Internet and can change. There's no point in checking sum.golang.org for
them under any circumstances.

Similarly for the various goimports tests.

Fixes golang/go#32216.

Change-Id: Id9a6b660564cb744530bf9d209fca19008fb9c4f
Reviewed-on: https://go-review.googlesource.com/c/tools/+/178722
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-05-24 18:48:02 +00:00
Heschi Kreinick
26647e34d3 imports: allow nil Options in Process
Forgot this case in CL 175437.

Change-Id: I9825cf010611fed9f47b1a87fc793bf3a5a36f68
Reviewed-on: https://go-review.googlesource.com/c/tools/+/178257
Run-TryBot: Heschi Kreinick <heschi@google.com>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2019-05-20 22:08:59 +00:00