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false,true: Implement custom help, version

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This avoids hacking around the short options of these command line
arguments that have been introduced by clap. Additionally, we test and
correctly handle the combination of both version and help. The GNU
binary will ignore both arguments in this case while clap would perform
the first one. A test for this edge case was added.
This commit is contained in:
Andreas Molzer 2022-02-01 14:29:26 +01:00
parent c1e108933f
commit 23a544c485
4 changed files with 69 additions and 38 deletions
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10
tests/by-util/test_true.rs
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@ -25,11 +25,19 @@ fn test_help() {
#[test]
fn test_short_options() {
for option in ["-h", "-v"] {
for option in ["-h", "-V"] {
new_ucmd!().arg(option).succeeds().stdout_is("");
}
}
#[test]
fn test_conflict() {
new_ucmd!()
.args(&["--help", "--version"])
.succeeds()
.stdout_is("");
}
#[test]
#[cfg(any(target_os = "linux", target_os = "freebsd", target_os = "netbsd"))]
fn test_full() {