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| author | Jay Conrod <jayconrod@google.com> | 2019-10-22 11:30:20 -0400 |
|---|---|---|
| committer | Jay Conrod <jayconrod@google.com> | 2019-10-24 20:15:50 +0000 |
| commit | c357b363cf1027afe3296e973ea6f6613cc757ad (patch) | |
| tree | 089677a31fcbabaccf4e5c6172c103529a0b0975 /src/cmd/go/internal/work/build.go | |
| parent | c4c37547b12f113d07b987881a81c1dbc754cd66 (diff) | |
| download | go-c357b363cf1027afe3296e973ea6f6613cc757ad.tar.gz go-c357b363cf1027afe3296e973ea6f6613cc757ad.zip | |
cmd/go: add -modfile flag that sets go.mod file to read/write
This change adds the -modfile flag to module aware build commands and
to 'go mod' subcommands. -modfile may be set to a path to an alternate
go.mod file to be read and written. A real go.mod file must still
exist and is used to set the module root directory. However, it is not
opened.
When -modfile is set, the effective location of the go.sum file is
also changed to the -modfile with the ".mod" suffix trimmed (if
present) and ".sum" added.
Updates #34506
Change-Id: I2d1e044e18af55505a4f24bbff09b73bb9c908b4
Reviewed-on: https://go-review.googlesource.com/c/go/+/202564
Run-TryBot: Jay Conrod <jayconrod@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
Diffstat (limited to 'src/cmd/go/internal/work/build.go')
| -rw-r--r-- | src/cmd/go/internal/work/build.go | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/src/cmd/go/internal/work/build.go b/src/cmd/go/internal/work/build.go index d2b4bd3c65..7dd8104683 100644 --- a/src/cmd/go/internal/work/build.go +++ b/src/cmd/go/internal/work/build.go @@ -105,6 +105,13 @@ and test commands: -modcacherw leave newly-created directories in the module cache read-write instead of making them read-only. + -modfile file + in module aware mode, read (and possibly write) an alternate go.mod + file instead of the one in the module root directory. A file named + "go.mod" must still be present in order to determine the module root + directory, but it is not accessed. When -modfile is specified, an + alternate go.sum file is also used: its path is derived from the + -modfile flag by trimming the ".mod" extension and appending ".sum". -pkgdir dir install and load all packages from dir instead of the usual locations. For example, when building with a non-standard configuration, @@ -266,6 +273,7 @@ func AddBuildFlags(cmd *base.Command, mask BuildFlagMask) { // and 'go mod' subcommands. func AddModCommonFlags(cmd *base.Command) { cmd.Flag.BoolVar(&cfg.ModCacheRW, "modcacherw", false, "") + cmd.Flag.StringVar(&cfg.ModFile, "modfile", "", "") } // tagsFlag is the implementation of the -tags flag. |