Commit Graph

11 Commits

Author SHA1 Message Date
Alan Donovan 03663480fa go/buildutil: ExpandPatterns: ignore a trailing slash in a pattern
Previously, a trailing slash would cause "foo/" to be treated as the
name of a package, with comical results.

Fixed golang/go#14584

Change-Id: I660f8a079bbd63d3645812e516a9264c8e080e61
Reviewed-on: https://go-review.googlesource.com/30452
Reviewed-by: Robert Griesemer <gri@golang.org>
2016-10-05 19:34:25 +00:00
Alan Donovan ba766134cc go/buildutil: add ExpandPatterns utility
This will be used by the guru command's -scope argument.

+ test

Change-Id: I5bf38b544809e4518e2c22a73ec3349a5d2c09fc
Reviewed-on: https://go-review.googlesource.com/19746
Reviewed-by: Michael Matloob <matloob@golang.org>
2016-02-22 20:15:22 +00:00
Alan Donovan 3a85b8da38 refactor/importgraph: reduce I/O concurrency to avoid EMFILE
Use an concurrency-limiting semaphore to reduce I/O parallelism in Import.

Also, start the producer in a new goroutine so that it runs in parallel
with the consumer.  Paradoxically, this reduces the peak number of
goroutines.

Also, in buildutil.ForEachPackage, make the concurrency limiting
semaphore global, since I/O parallelism is a process-wide resource.

Change-Id: I282b717c50603361826e5675077c9f464c874132
Reviewed-on: https://go-review.googlesource.com/18215
Reviewed-by: Michael Matloob <matloob@golang.org>
2015-12-30 22:01:03 +00:00
Alan Donovan 27534aa951 go/buildutil: changes for vendor support
Add AllowVendor constant for convenience across x/tools.
 (Will delete go/loader's importMode later)
Add StripVendor utility function + test.

Change-Id: I885076cb4ea67588996d85b749b85f49cd619f0d
Reviewed-on: https://go-review.googlesource.com/18049
Reviewed-by: Robert Griesemer <gri@golang.org>
2015-12-18 20:00:43 +00:00
Alan Donovan bdcea2c1b3 go/buildutil: use chan (not func) in the ForEachPackage API
The callbacks are intentionally concurrent, making this function very
easy to misuse (most clients so far have got it wrong, even my own).
Using a channel in the API makes the concurrency obvious, the
correct usage easy, and the client control flow simpler.

Change-Id: Ied38c3ed5c98b40eb1b322a984ed9dc092ac0918
Reviewed-on: https://go-review.googlesource.com/3250
Reviewed-by: Sameer Ajmani <sameer@golang.org>
2015-03-05 20:14:20 +00:00
David Symonds 24257c8cd2 tools: add import comments.
Change-Id: Idda6e64580432cb9a731e4ebf4005ee4ceb4202d
Reviewed-on: https://go-review.googlesource.com/1244
Reviewed-by: Andrew Gerrand <adg@golang.org>
2014-12-09 22:42:16 +00:00
Alan Donovan 3191bbae17 go/buildutil: call ReadDir via the build.Context's file system interface
LGTM=gri
R=gri, crawshaw
CC=golang-codereviews
https://golang.org/cl/171920043
2014-11-05 12:34:34 -05:00
Alan Donovan b45b275b99 go/buildutil: use same logic as 'go' tool for pruning package search.
The previous logic would descend into (e.g.) .git repositories
and vendored packages with "_"-prefixed names.

Fixes golang/go#8907

LGTM=gri
R=gri
CC=golang-codereviews, shurcool
https://golang.org/cl/157800043
2014-10-14 12:57:00 -04:00
Alan Donovan 4ada33969d go/buildutil: use a counting semaphore to limit the number of parallel calls to ReadDir
LGTM=gri
R=gri
CC=golang-codereviews
https://golang.org/cl/153430043
2014-10-13 17:47:43 -04:00
Alan Donovan 66176e290c go/buildutil: rename AllPackages{,List} -> {ForEachPackage,AllPackages}.
This CL is the first refactoring automated by "gorename". :)
Though I had to update the comments and run 'hg gofmt'.   :(

LGTM=gri
R=gri
CC=golang-codereviews
https://golang.org/cl/142930043
2014-09-11 14:33:37 -04:00
Alan Donovan 77b9ff6df3 go.tools/go/buildutil: AllPackages: enumerate all packages in a Go workspace.
This function has been copied at least 6 times throughout
go.tools.  This implementation is superior since it does
all I/O through the virtualized go/build file system, and it
is highly parallel (and much faster).

We expose two flavours, simple (for existing tests) and
parallel (for high-performance tools such as gorename).

This CL creates the go/buildutil package, which is intended for
utilities related to go/build.

+ test.

LGTM=gri
R=gri
CC=golang-codereviews
https://golang.org/cl/137430043
2014-09-09 18:39:14 -04:00