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build: add experimental support for print flag

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Print flag can be used to make additional information
requests about the build and print their results.

Currently Dockerfile supports: outline, targets, subrequests.describe

Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>
This commit is contained in:
Tonis Tiigi
2022-05-04 18:48:50 -07:00
parent 17dc0e1108
commit eefa8188e1
98 changed files with 8536 additions and 3339 deletions
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19
build/build.go
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@ -81,7 +81,8 @@ type Options struct {
Ulimits *opts.UlimitOpt
// Linked marks this target as exclusively linked (not requested by the user).
Linked bool
Linked bool
PrintFunc string
}
type Inputs struct {
@ -1039,11 +1040,23 @@ func BuildWithResultHandler(ctx context.Context, drivers []DriverInfo, opt map[s
defer func() { <-done }()
cc := c
var printRes map[string][]byte
rr, err := c.Build(ctx, so, "buildx", func(ctx context.Context, c gateway.Client) (*gateway.Result, error) {
if opt.PrintFunc != "" {
if _, ok := req.FrontendOpt["frontend.caps"]; !ok {
req.FrontendOpt["frontend.caps"] = "moby.buildkit.frontend.subrequests+forward"
} else {
req.FrontendOpt["frontend.caps"] += ",moby.buildkit.frontend.subrequests+forward"
}
req.FrontendOpt["requestid"] = "frontend." + opt.PrintFunc
}
res, err := c.Solve(ctx, req)
if err != nil {
return nil, err
}
if opt.PrintFunc != "" {
printRes = res.Metadata
}
results.Set(resultKey(dp.driverIndex, k), res)
if resultHandleFunc != nil {
resultHandleFunc(dp.driverIndex, &ResultContext{cc, res})
@ -1055,6 +1068,10 @@ func BuildWithResultHandler(ctx context.Context, drivers []DriverInfo, opt map[s
}
res[i] = rr
for k, v := range printRes {
rr.ExporterResponse[k] = string(v)
}
d := drivers[dp.driverIndex].Driver
if d.IsMobyDriver() {
for _, e := range so.Exports {