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cmd/go: report 'go get' errors for absolute paths outside module root

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'go get' will now check absolute paths without wildcards the same way
it checks relative paths. modload.DirImportPath may be used for both
without converting path separators.

Fixes #38038

Change-Id: I453299898ece58f3b5002a5e80021d6bfe815fdd
Reviewed-on: https://go-review.googlesource.com/c/go/+/226857
Run-TryBot: Jay Conrod <jayconrod@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
Reviewed-by: Michael Matloob <matloob@golang.org>
This commit is contained in:
Jay Conrod 2020-04-01 13:08:41 -04:00
parent 98534812bd
commit 44ae94751a
2 changed files with 24 additions and 12 deletions
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21
src/cmd/go/internal/modget/get.go
View File

@ -326,15 +326,18 @@ func runGet(cmd *base.Command, args []string) {
// patterns like golang.org/x/tools/..., which can't be expanded
// during package loading until they're in the build list.
switch {
case search.IsRelativePath(path):
// Relative paths like ../../foo or ../../foo... are restricted to
// matching packages in the main module. If the path is explicit and
// contains no wildcards (...), check that it is a package in
// the main module. If the path contains wildcards but matches no
// packages, we'll warn after package loading.
case filepath.IsAbs(path) || search.IsRelativePath(path):
// Absolute paths like C:\foo and relative paths like ../foo...
// are restricted to matching packages in the main module. If the path
// is explicit and contains no wildcards (...), check that it is a
// package in the main module. If the path contains wildcards but
// matches no packages, we'll warn after package loading.
if !strings.Contains(path, "...") {
pkgPath := modload.DirImportPath(filepath.FromSlash(path))
if pkgs := modload.TargetPackages(pkgPath); len(pkgs) == 0 {
var pkgs []string
if pkgPath := modload.DirImportPath(path); pkgPath != "." {
pkgs = modload.TargetPackages(pkgPath)
}
if len(pkgs) == 0 {
abs, err := filepath.Abs(path)
if err != nil {
abs = path
@ -520,7 +523,7 @@ func runGet(cmd *base.Command, args []string) {
// If the pattern did not match any packages, look up a new module.
// If the pattern doesn't match anything on the last iteration,
// we'll print a warning after the outer loop.
if !search.IsRelativePath(arg.path) && !match.IsLiteral() && arg.path != "all" {
if !match.IsLocal() && !match.IsLiteral() && arg.path != "all" {
addQuery(&query{querySpec: querySpec{path: arg.path, vers: arg.vers}, arg: arg.raw})
} else {
for _, err := range match.Errs {

15
src/cmd/go/testdata/script/mod_get_main.txt vendored
View File

@ -1,9 +1,18 @@
env GO111MODULE=on
[short] skip
cp go.mod.orig go.mod
# relative and absolute paths must be within the main module.
! go get -d ..
stderr '^go get \.\.: path '$WORK'[/\\]gopath is not a package in module rooted at '$WORK'[/\\]gopath[/\\]src$'
! go get -d $WORK
stderr '^go get '$WORK': path '$WORK' is not a package in module rooted at '$WORK'[/\\]gopath[/\\]src$'
! go get -d ../...
stderr '^go get: pattern \.\./\.\.\.: directory prefix \.\. outside available modules$'
! go get -d $WORK/...
stderr '^go get: pattern '$WORK'[/\\]\.\.\.: directory prefix \.\.[/\\]\.\. outside available modules$'
# @patch and @latest within the main module refer to the current version.
# The main module won't be upgraded, but missing dependencies will be added.
cp go.mod.orig go.mod
go get -d rsc.io/x
grep 'rsc.io/quote v1.5.2' go.mod
go get -d rsc.io/x@upgrade
@ -18,7 +27,7 @@ cp go.mod.orig go.mod
stderr '^go get rsc.io/x@latest: can.t request explicit version of path in main module$'
# The main module cannot be updated to a specific version.
! go get rsc.io/x@v0.1.0
! go get -d rsc.io/x@v0.1.0
stderr '^go get rsc.io/x@v0.1.0: can.t request explicit version of path in main module$'
! go get -d rsc.io/x@v0.1.0
stderr '^go get rsc.io/x@v0.1.0: can.t request explicit version of path in main module$'