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Bryan C. Mills b96d32bd92 cmd/go/internal/modload: track which packages are in 'all' during loading
If the user requests the 'all' pattern in addition to explicit roots
outside of 'all', we should not load the transitive dependencies of
those explicit roots as if they were *in* 'all'. Without the '-test'
flag, we should not load test dependencies of any package outside of
'all'. Even *with* the '-test' flag, we should only load test
dependencies of the requested roots, not test dependencies of other
packages that happen to be imported by those roots.

More precise tracking of membership in 'all' will be important when we
implement lazy loading, because membership in 'all' determines which
module dependencies we will record in the main module's go.mod file.

This change also reduces reliance on global state, factors out the
loading process into several smaller functions, and sets us up to
reuse the 'go mod vendor' version of the 'all' pattern for lazy
loading.

For #36460
Fixes #40799

Change-Id: I5ca21c86a860daee1316f732cea131a331d8ddf9
Reviewed-on: https://go-review.googlesource.com/c/go/+/240505
Run-TryBot: Bryan C. Mills <bcmills@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Jay Conrod <jayconrod@google.com>
Reviewed-by: Michael Matloob <matloob@golang.org>
2020-09-09 20:46:48 +00:00
.github .github: add link to questions in ISSUE_TEMPLATE 2020-01-06 17:05:31 +00:00
api text/template: add CommentNode to template parse tree 2020-08-28 21:45:12 +00:00
doc doc/go1.16: reformat the minor changes section as a definition list 2020-09-05 18:40:02 +00:00
lib/time lib/time, time/tzdata: update tz data to 2020a 2020-04-30 08:07:39 +00:00
misc cmd/cgo: document #include <> search path behaviour 2020-09-01 23:12:18 +00:00
src cmd/go/internal/modload: track which packages are in 'all' during loading 2020-09-09 20:46:48 +00:00
test cmd/compile: fix mishandling of unsafe-uintptr arguments in go/defer 2020-09-09 07:50:01 +00:00
.gitattributes all: treat all files as binary, but check in .bat with CRLF 2020-06-08 15:31:43 +00:00
.gitignore .gitignore: ignore src/cmd/dist/dist 2017-10-28 21:55:49 +00:00
AUTHORS A+C: add Kush Patel (corporate CLA for Hootsuite Inc) 2020-07-08 00:10:44 +00:00
CONTRIBUTING.md all: restore changes from faulty merge/revert 2018-02-12 20:13:59 +00:00
CONTRIBUTORS CONTRIBUTORS: update for the Go 1.15 release 2020-08-10 21:51:48 +00:00
favicon.ico website: recreate 16px and 32px favicon 2016-08-25 15:43:32 +00:00
LICENSE doc: revert copyright date to 2009 2016-06-01 22:40:04 +00:00
PATENTS LICENSE: separate, change PATENTS text 2010-12-06 16:31:59 -05:00
README.md README: linkify some paths 2018-06-06 18:07:01 +00:00
robots.txt godoc: serve robots.txt raw 2011-02-19 05:46:20 +11:00
SECURITY.md SECURITY.md: update go versions 2019-09-26 15:34:57 +00:00

The Go Programming Language

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