cmd/go: convert even more module tests to scripts

Change-Id: Iba185e00e9df2462e9089566053f6c64e24a6a92
Reviewed-on: https://go-review.googlesource.com/124698Reviewed-by: Bryan C. Mills <bcmills@google.com>

src/cmd/go/testdata/script/mod_bad_domain.txt

+env GO111MODULE=on
+
+# explicit get should report errors about bad names
+! go get appengine
+stderr 'cannot find module providing package appengine'
+! go get x/y.z
+stderr 'cannot find module providing package x/y.z'
+
+# build should skip over appengine imports
+! go build
+! stderr appengine
+stderr 'cannot find module providing package nonexistent.rsc.io'
+
+-- go.mod --
+module x
+
+-- x.go --
+package x
+
+import _ "appengine"
+import _ "nonexistent.rsc.io" // domain does not exist

src/cmd/go/testdata/script/mod_bad_filenames.txt

+env GO111MODULE=on
+
+! go get rsc.io/badfile1 rsc.io/badfile2 rsc.io/badfile3 rsc.io/badfile4 rsc.io/badfile5
+! stderr 'unzip.*badfile1'
+stderr 'unzip.*badfile2/@v/v1.0.0.zip:.*malformed file path "☺.go": invalid char ''☺'''
+stderr 'unzip.*badfile3/@v/v1.0.0.zip: malformed file path "x\?y.go": invalid char ''\?'''
+stderr 'unzip.*badfile4/@v/v1.0.0.zip: case-insensitive file name collision: "x/Y.go" and "x/y.go"'
+stderr 'unzip.*badfile5/@v/v1.0.0.zip: case-insensitive file name collision: "x/y" and "x/Y"'
+
+-- go.mod --
+module x

src/cmd/go/testdata/script/mod_case.txt

+env GO111MODULE=on
+
+go get rsc.io/QUOTE
+go list -m all
+stdout '^rsc.io/quote v1.5.2'
+stdout '^rsc.io/QUOTE v1.5.2'
+
+go list -f 'DIR {{.Dir}} DEPS {{.Deps}}' rsc.io/QUOTE/QUOTE
+stdout 'DEPS.*rsc.io/quote'
+stdout 'DIR.*!q!u!o!t!e'
+
+-- go.mod --
+module x

src/cmd/go/testdata/script/mod_file_proxy.txt

+# Use download cache for -getmode=local.
+env GO111MODULE=on
+env GOPATH=$WORK/gopath1
+cd $WORK/x
+! go list -getmode=local all
+go list all
+go list -getmode=local all
+env GOPROXY=file:///nonexist
+go list -getmode=local all
+grep v1.5.1 $GOPATH/src/mod/cache/download/rsc.io/quote/@v/list
+
+# Use download cache as file:/// proxy.
+env GOPATH=$WORK/gopath2
+env GOPROXY=file:///nonexist
+! go list -getmode=local all
+! go list all
+env GOPROXY=file://$WORK/gopath1/src/mod/cache/download
+! go list -getmode=local all
+go list all
+grep v1.5.1 $GOPATH/src/mod/cache/download/rsc.io/quote/@v/list
+
+-- $WORK/x/go.mod --
+module x
+require rsc.io/quote v1.5.1
+-- $WORK/x/x.go --
+package x
+import _ "rsc.io/quote"

src/cmd/go/testdata/script/mod_init_dep.txt

+env GO111MODULE=on
+
+# modconv uses git directly to examine what old 'go get' would
+[!net] skip
+[!exec:git] skip
+
+# go build should populate go.mod from Gopkg.lock
+cp go.mod1 go.mod
+go build
+stderr 'copying requirements from Gopkg.lock'
+go list -m all
+! stderr 'copying requirements from Gopkg.lock'
+stdout 'rsc.io/sampler v1.0.0'
+
+# go list should populate go.mod from Gopkg.lock
+cp go.mod1 go.mod
+go list
+stderr 'copying requirements from Gopkg.lock'
+go list
+! stderr 'copying requirements from Gopkg.lock'
+go list -m all
+stdout 'rsc.io/sampler v1.0.0'
+
+-- go.mod1 --
+module x
+
+-- x.go --
+package x
+
+-- Gopkg.lock --
+[[projects]]
+  name = "rsc.io/sampler"
+  version = "v1.0.0"
+

src/cmd/go/testdata/script/mod_list.txt

+env GO111MODULE=on
+
+# list {{.Dir}} shows main module but not not-yet-downloaded dependency
+go list -m -f '{{.Path}} {{.Main}} {{.Dir}}' all
+stdout '^x true .*[\\/]src$'
+stdout '^rsc.io/quote false $'
+
+# list {{.Dir}} shows dependency after download
+go list -f {{.Dir}} rsc.io/quote
+stdout 'mod[\\/]rsc.io[\\/]quote@v1.5.2'
+
+# downloaded dependencies are read-only
+exists -readonly $GOPATH/src/mod/rsc.io/quote@v1.5.2
+exists -readonly $GOPATH/src/mod/rsc.io/quote@v1.5.2/buggy
+
+# go clean -modcache can delete read-only dependencies
+go clean -modcache
+! exists $GOPATH/src/mod/rsc.io/quote@v1.5.2
+
+# list {{.Dir}} shows replaced directories
+cp go.mod2 go.mod
+go list -f {{.Dir}} rsc.io/quote
+go list -m -f '{{.Path}} {{.Version}} {{.Dir}}{{with .Replace}} => {{.Version}} {{.Dir}}{{end}}' all
+stdout 'mod[\\/]rsc.io[\\/]quote@v1.5.1'
+stdout 'v1.3.0.*mod[\\/]rsc.io[\\/]sampler@v1.3.1 => v1.3.1.*sampler@v1.3.1'
+
+# list std should work
+go list std
+stdout ^math/big
+
+# rsc.io/quote/buggy should be listable as a package
+go list rsc.io/quote/buggy
+
+# rsc.io/quote/buggy should not be listable as a module
+go list -m -e -f '{{.Error.Err}}' nonexist rsc.io/quote/buggy
+stdout '^module "nonexist" is not a known dependency'
+stdout '^module "rsc.io/quote/buggy" is not a known dependency'
+
+! go list -m nonexist rsc.io/quote/buggy
+stderr '^go list -m nonexist: module "nonexist" is not a known dependency'
+stderr '^go list -m rsc.io/quote/buggy: module "rsc.io/quote/buggy" is not a known dependency'
+
+# Module loader does not interfere with list -e (golang.org/issue/24149).
+go list -e -f '{{.Error.Err}}' database
+stdout 'no Go files in '
+! go list database
+stderr 'no Go files in '
+
+-- go.mod --
+module x
+require rsc.io/quote v1.5.2
+
+-- go.mod2 --
+module x
+require rsc.io/quote v1.5.1
+replace rsc.io/sampler v1.3.0 => rsc.io/sampler v1.3.1
+
+-- x.go --
+package x
+import _ "rsc.io/quote"

src/cmd/go/testdata/script/mod_verify.txt

+env GO111MODULE=on
+
+# With good go.sum, verify succeeds by avoiding download.
+cp go.sum.good go.sum
+go mod -verify
+! exists $GOPATH/src/mod/cache/download/rsc.io/quote/@v/v1.1.0.zip
+
+# With bad go.sum, verify succeeds by avoiding download.
+cp go.sum.bad go.sum
+go mod -verify
+! exists $GOPATH/src/mod/cache/download/rsc.io/quote/@v/v1.1.0.zip
+
+# With bad go.sum, sync (which must download) fails.
+# Even if the bad sum is in the old legacy go.modverify file.
+rm go.sum
+cp go.sum.bad go.modverify
+! go mod -sync
+stderr 'checksum mismatch'
+! exists $GOPATH/src/mod/cache/download/rsc.io/quote/@v/v1.1.0.zip
+
+# With good go.sum, sync works (and moves go.modverify to go.sum).
+rm go.sum
+cp go.sum.good go.modverify
+go mod -sync
+exists $GOPATH/src/mod/cache/download/rsc.io/quote/@v/v1.1.0.zip
+exists $GOPATH/src/mod/rsc.io/quote@v1.1.0/quote.go
+! exists go.modverify
+
+# go.sum should have the new checksum for go.mod
+grep '^rsc.io/quote v1.1.0/go.mod ' go.sum
+
+# verify should work
+go mod -verify
+
+# basic loading of module graph should detect incorrect go.mod files.
+go mod -graph
+cp go.sum.bad2 go.sum
+! go mod -graph
+stderr 'go.mod: checksum mismatch'
+
+# go.sum should be created and updated automatically.
+rm go.sum
+go mod -graph
+exists go.sum
+grep '^rsc.io/quote v1.1.0/go.mod ' go.sum
+! grep '^rsc.io/quote v1.1.0 ' go.sum
+
+go mod -sync
+grep '^rsc.io/quote v1.1.0/go.mod ' go.sum
+grep '^rsc.io/quote v1.1.0 ' go.sum
+
+# sync should ignore missing ziphash; verify should not
+rm $GOPATH/src/mod/cache/download/rsc.io/quote/@v/v1.1.0.ziphash
+go mod -sync
+! go mod -verify
+
+# Packages below module root should not be mentioned in go.sum.
+rm go.sum
+go mod -droprequire rsc.io/quote
+go list rsc.io/quote/buggy # re-resolves import path and updates go.mod
+grep '^rsc.io/quote v1.5.2/go.mod ' go.sum
+! grep buggy go.sum
+
+# non-existent packages below module root should not be mentioned in go.sum
+go mod -droprequire rsc.io/quote
+! go list rsc.io/quote/morebuggy
+grep '^rsc.io/quote v1.5.2/go.mod ' go.sum
+! grep buggy go.sum
+
+-- go.mod --
+module x
+require rsc.io/quote v1.1.0
+
+-- x.go --
+package x
+import _ "rsc.io/quote"
+
+-- go.sum.good --
+rsc.io/quote v1.1.0 h1:a3YaZoizPtXyv6ZsJ74oo2L4/bwOSTKMY7MAyo4O/0c=
+
+-- go.sum.bad --
+rsc.io/quote v1.1.0 h1:a3YaZoizPtXyv6ZsJ74oo2L4/bwOSTKMY7MAyo4O/1c=
+
+-- go.sum.bad2 --
+rsc.io/quote v1.1.0/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl1=