c5c41f6352
* command/terminal: allow restart to change process args Add -args flag to "restart" command. For example, "restart -args a b c" will pass args a b c to the new process. Add "-c" flag to pass the checkpoint name. This is needed to disambiguate the checkpoint name and arglist. Reverted unnecessary changes. * Applied reviewer comments. Vendored argv. Change the syntax of restart. When the target is is in recording mode, it always interprets the args as a checkpoint. Otherwise, it interprets the args as commandline args. The flag "-args" is still there, to handle the case in which the user wants to pass an empty args on restart. * Add restartargs.go. Change "restart -args" to "restart -noargs" to clarify that this flag is used to start a process with an empty arg.
35 lines
1.0 KiB
Go
35 lines
1.0 KiB
Go
// Package argv parse command line string into arguments array using the bash syntax.
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package argv
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import "strings"
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// ParseEnv parsing environment variables as key/value pair.
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//
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// Item will be ignored if one of the key and value is empty.
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func ParseEnv(env []string) map[string]string {
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var m map[string]string
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for _, e := range env {
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secs := strings.SplitN(e, "=", 2)
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if len(secs) == 2 {
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key := strings.TrimSpace(secs[0])
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val := strings.TrimSpace(secs[1])
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if key == "" || val == "" {
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continue
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}
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if m == nil {
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m = make(map[string]string)
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}
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m[key] = val
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}
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}
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return m
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}
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// Argv split cmdline string as array of argument array by the '|' character.
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//
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// The parsing rules is same as bash. The environment variable will be replaced
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// and string surround by '`' will be passed to reverse quote parser.
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func Argv(cmdline []rune, env map[string]string, reverseQuoteParser ReverseQuoteParser) ([][]string, error) {
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return NewParser(NewScanner(cmdline, env), reverseQuoteParser).Parse()
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}
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