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Merge pull request #337 from tonistiigi/cacheonly-exporter

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build: support cacheonly exporter
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Tõnis Tiigi 2020-07-29 19:32:54 -07:00 committed by GitHub
commit 38f9241316
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1 changed files with 12 additions and 1 deletions
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13
build/build.go
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@ -343,11 +343,13 @@ func toSolveOpt(d driver.Driver, multiDriver bool, opt Options, dl dockerLoadCal
IsDefaultMobyDriver() IsDefaultMobyDriver()
}) })
noDefaultLoad, _ := strconv.ParseBool(os.Getenv("BUILDX_NO_DEFAULT_LOAD"))
switch len(opt.Exports) { switch len(opt.Exports) {
case 1: case 1:
// valid // valid
case 0: case 0:
if isDefaultMobyDriver { if isDefaultMobyDriver && !noDefaultLoad {
// backwards compat for docker driver only: // backwards compat for docker driver only:
// this ensures the build results in a docker image. // this ensures the build results in a docker image.
opt.Exports = []client.ExportEntry{{Type: "image", Attrs: map[string]string{}}} opt.Exports = []client.ExportEntry{{Type: "image", Attrs: map[string]string{}}}
@ -382,6 +384,15 @@ func toSolveOpt(d driver.Driver, multiDriver bool, opt Options, dl dockerLoadCal
} }
} }
// cacheonly is a fake exporter to opt out of default behaviors
exports := make([]client.ExportEntry, 0, len(opt.Exports))
for _, e := range opt.Exports {
if e.Type != "cacheonly" {
exports = append(exports, e)
}
}
opt.Exports = exports
// set up exporters // set up exporters
for i, e := range opt.Exports { for i, e := range opt.Exports {
if (e.Type == "local" || e.Type == "tar") && opt.ImageIDFile != "" { if (e.Type == "local" || e.Type == "tar") && opt.ImageIDFile != "" {