Merge "Create a ninja.environment file"

	"strings"

	"time"

	"android/soong/shared"

	"android/soong/ui/metrics"

	"android/soong/ui/status"

)

const (

	// File containing the environment state when ninja is executed

	ninjaEnvFileName = "ninja.environment"

)

// Constructs and runs the Ninja command line with a restricted set of

// environment variables. It's important to restrict the environment Ninja runs

// for hermeticity reasons, and to avoid spurious rebuilds.

		ctx.Verbosef("  %s", envVar)

	}

	// Write the env vars available during ninja execution to a file

	ninjaEnvVars := cmd.Environment.AsMap()

	data, err := shared.EnvFileContents(ninjaEnvVars)

	if err != nil {

		ctx.Panicf("Could not parse environment variables for ninja run %s", err)

	}

	// Write the file in every single run. This is fine because

	// 1. It is not a dep of Soong analysis, so will not retrigger Soong analysis.

	// 2. Is is fairly lightweight (~1Kb)

	ninjaEnvVarsFile := shared.JoinPath(config.SoongOutDir(), ninjaEnvFileName)

	err = os.WriteFile(ninjaEnvVarsFile, data, 0666)

	if err != nil {

		ctx.Panicf("Could not write ninja environment file %s", err)

	}

	// Poll the Ninja log for updates regularly based on the heartbeat

	// frequency. If it isn't updated enough, then we want to surface the

	// possibility that Ninja is stuck, to the user.