mirror of
https://github.com/goreleaser/goreleaser.git
synced 2025-02-01 13:07:49 +02:00
b495c905d5
<!-- Hi, thanks for contributing! Please make sure you read our CONTRIBUTING guide. Also, add tests and the respective documentation changes as well. --> Currently Goreleaser uses `runtime.NumCPU()` as the default value if `--parallelism` is not set. However, this will get the number of CPUs on the host even when Goreleaser is run in a container with a limit on the maximum number of CPUs that can be used (typically in a Kubernetes pod). Actually, `docker run --cpus=1 goreleaser/goreleaser --debug` shows `parallelism: 4` on my machine. This behavior causes CPU throttling, which increases execution time and, in the worst case, terminates with an error. I ran into this problem with Jenkins where the agent runs on pod ([Kubernetes plugin for Jenkins](https://plugins.jenkins.io/kubernetes/)). This commit introduces [automaxprocs](https://github.com/uber-go/automaxprocs) to fix this issue. This library sets `GOMAXPROCS` to match Linux container CPU quota. I have also looked for a library that can get CPU quota more directly, but this seems to be the best I could find. The reason it is set in a different notation from the automaxprocs README is to prevent logs from being displayed ([comment](https://github.com/uber-go/automaxprocs/issues/18#issuecomment-511330567)). I would have liked to write a test, but this change is dependent on the number of CPUs in the execution environment, so I could not. Instead, I wrote a Dockerfile for testing ```Dockerfile FROM golang:1.20.2 WORKDIR /go/app RUN sh -c "$(curl --location https://taskfile.dev/install.sh)" -- -d -b /usr/local/bin COPY . . RUN task build ``` and confirmed built binary shows expected parallelism by following commands: ```sh docker build --file Dockerfile.test . -t test-goreleaser docker run --cpus=1 test-goreleaser ./goreleaser build --snapshot --debug # parallelism: 1 docker run test-goreleaser ./goreleaser build --snapshot --debug # parallelism: 4 ``` I also ran the built binary on my Macbook and it was fine.
63 lines
1.4 KiB
Go
63 lines
1.4 KiB
Go
package main
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import (
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"fmt"
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"os"
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"runtime"
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"runtime/debug"
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"github.com/caarlos0/log"
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"github.com/charmbracelet/lipgloss"
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"github.com/goreleaser/goreleaser/cmd"
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"github.com/muesli/termenv"
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"go.uber.org/automaxprocs/maxprocs"
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)
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// nolint: gochecknoglobals
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var (
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version = "dev"
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commit = ""
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date = ""
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builtBy = ""
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)
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func init() {
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// enable colored output on github actions et al
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if os.Getenv("CI") != "" {
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lipgloss.SetColorProfile(termenv.TrueColor)
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}
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// automatically set GOMAXPROCS to match available CPUs.
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// GOMAXPROCS will be used as the default value for the --parallelism flag.
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if _, err := maxprocs.Set(); err != nil {
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log.WithError(err).Fatal("failed to set GOMAXPROCS")
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}
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}
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func main() {
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cmd.Execute(
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buildVersion(version, commit, date, builtBy),
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os.Exit,
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os.Args[1:],
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)
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}
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const website = "\n\nhttps://goreleaser.com"
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func buildVersion(version, commit, date, builtBy string) string {
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result := version
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if commit != "" {
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result = fmt.Sprintf("%s\ncommit: %s", result, commit)
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}
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if date != "" {
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result = fmt.Sprintf("%s\nbuilt at: %s", result, date)
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}
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if builtBy != "" {
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result = fmt.Sprintf("%s\nbuilt by: %s", result, builtBy)
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}
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result = fmt.Sprintf("%s\ngoos: %s\ngoarch: %s", result, runtime.GOOS, runtime.GOARCH)
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if info, ok := debug.ReadBuildInfo(); ok && info.Main.Sum != "" {
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result = fmt.Sprintf("%s\nmodule version: %s, checksum: %s", result, info.Main.Version, info.Main.Sum)
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}
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return result + website
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}
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