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[CONSUL-543] Create exec_supported.go (#89)
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Original file line number | Diff line number | Diff line change |
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//go:build linux || darwin || windows | ||
// +build linux darwin windows | ||
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package envoy | ||
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import ( | ||
"fmt" | ||
"os" | ||
"strings" | ||
) | ||
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// testSelfExecOverride is a way for the tests to no fork-bomb themselves by | ||
// self-executing the whole test suite for each case recursively. It's gross but | ||
// the least gross option I could think of. | ||
var testSelfExecOverride string | ||
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func isHotRestartOption(s string) bool { | ||
restartOpts := []string{ | ||
"--restart-epoch", | ||
"--hot-restart-version", | ||
"--drain-time-s", | ||
"--parent-shutdown-time-s", | ||
} | ||
for _, opt := range restartOpts { | ||
if s == opt { | ||
return true | ||
} | ||
if strings.HasPrefix(s, opt+"=") { | ||
return true | ||
} | ||
} | ||
return false | ||
} | ||
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func hasHotRestartOption(argSets ...[]string) bool { | ||
for _, args := range argSets { | ||
for _, opt := range args { | ||
if isHotRestartOption(opt) { | ||
return true | ||
} | ||
} | ||
} | ||
return false | ||
} | ||
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// execArgs returns the command and args used to execute a binary. By default it | ||
// will return a command of os.Executable with the args unmodified. This is a shim | ||
// for testing, and can be overridden to execute using 'go run' instead. | ||
var execArgs = func(args ...string) (string, []string, error) { | ||
execPath, err := os.Executable() | ||
if err != nil { | ||
return "", nil, err | ||
} | ||
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if strings.HasSuffix(execPath, "/envoy.test") { | ||
return "", nil, fmt.Errorf("set execArgs to use 'go run' instead of doing a self-exec") | ||
} | ||
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return execPath, args, nil | ||
} |
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