Added checks that docker CLI exists and also that docker info wor…

…ks properly

CHANGELOG.md

@@ -5,6 +5,10 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## v0.4.1
+
+* Added checks that `docker` CLI exists and also that `docker info` works properly.
+
 ## v0.4.0
 
 * Added full `CGO` support when building Go application/library, `.goreleaser.yaml` file now has `C_INCLUDE_PATH` and `LIBRARY_PATH` sets correctly so it's possible to build Go that depends on C libraries.

cmd/sfreleaser/main.go

@@ -67,3 +67,18 @@ func verifyCommand(command string, onErrorText string) {
 		cli.Exit(1)
 	}
 }
+
+func verifyCommandRunSuccesfully(command string, onErrorText string) {
+	verifyCommand("docker", onErrorText)
+
+	output, _, err := maybeResultOf(command)
+	if err != nil {
+		zlog.Debug("command check failed", zap.String("command", command), zap.String("output", output))
+
+		fmt.Printf("Command %q did not execute succesfully, error with %q\n", command, err.Error())
+		fmt.Println()
+		fmt.Println(onErrorText)
+
+		cli.Exit(1)
+	}
+}

cmd/sfreleaser/release.go

@@ -115,15 +115,7 @@ func release(cmd *cobra.Command, args []string) error {
 
 	cli.NoError(os.Chdir(global.WorkingDirectory), "Unable to change directory to %q", global.WorkingDirectory)
 
-	verifyCommand("gh", cli.Dedent(`
-    	The GitHub CLI utility (https://cli.github.com/) is required to obtain
-    	information about the current draft release.
-
-    	Install via brew with 'brew install gh' or refer https://github.com/cli/cli#installation
-    	otherwise.
-
-    	Don't forget to activate link with GitHub by doing 'gh auth login'.
-	`))
+	verifyTools()
 
 	if release.Version == "" {
 		release.Version = promptVersion()
@@ -274,3 +266,33 @@ func prepareSubstreamsSpkg(spkgPath string, global *GlobalModel, release *Releas
 
 	return spkgPath
 }
+
+func verifyTools() {
+	verifyCommand("docker", cli.Dedent(`
+		The 'docker' utility (https://docs.docker.com/get-docker/) is perform the
+		release.
+
+		Install it via https://docs.docker.com/get-docker/. Ensure you have it enough
+		resources allocated to it. You should use the fastest available options for your
+		system. You should also allocate minimally 4 CPU and 8GiB of RAM.
+	`))
+
+	verifyCommandRunSuccesfully("docker info", cli.Dedent(`
+		Ensure that your Docker Engine is currently running, it seems it's not running
+		right now because the command 'docker info' failed.
+
+		Try running the command 'docker info' locally to see the output. Ensure that it
+		execute successuflly and exits with a 0 exit code (run 'echo $?' right after
+		execution of the 'docker info' command to get its exit code).
+	`))
+
+	verifyCommand("gh", cli.Dedent(`
+		The GitHub CLI utility (https://cli.github.com/) is required to obtain
+		information about the current draft release.
+
+		Install via brew with 'brew install gh' or refer https://github.com/cli/cli#installation
+		otherwise.
+
+		Don't forget to activate link with GitHub by doing 'gh auth login'.
+	`))
+}