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Optimize: Do not attempt to print if output is a pipe

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This is a small optimization so that we do not print the information if
the output is a pipe anyways.

Signed-off-by: Matthias Beyer <mail@beyermatthias.de>
This commit is contained in:
Matthias Beyer 2019-02-04 00:01:57 +01:00
parent f1a639ea8c
commit c8e74193b3
1 changed files with 47 additions and 43 deletions
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90
bin/domain/imag-contact/src/main.rs
View file

@ -288,52 +288,56 @@ fn find(rt: &Runtime) {
}) })
.enumerate(); .enumerate();
if scmd.is_present("json") { if !rt.output_is_pipe() {
let v : Vec<DeserVcard> = iterator.map(|(_, tlp)| tlp.1).collect(); if scmd.is_present("json") {
let v : Vec<DeserVcard> = iterator.map(|(_, tlp)| tlp.1).collect();
match ::serde_json::to_string(&v) { match ::serde_json::to_string(&v) {
Ok(s) => writeln!(rt.stdout(), "{}", s).to_exit_code().unwrap_or_exit(), Ok(s) => writeln!(rt.stdout(), "{}", s).to_exit_code().unwrap_or_exit(),
Err(e) => { Err(e) => {
error!("Error generating JSON: {:?}", e); error!("Error generating JSON: {:?}", e);
::std::process::exit(1) ::std::process::exit(1)
}
} }
} else if scmd.is_present("find-id") {
iterator
.for_each(|(_i, (entry, _))| {
writeln!(rt.stdout(), "{}", entry.get_location())
.to_exit_code()
.unwrap_or_exit();
})
} else if scmd.is_present("find-full-id") {
let storepath = rt.store().path().display();
iterator
.for_each(|(_i, (entry, _))| {
writeln!(rt.stdout(), "{}/{}", storepath, entry.get_location())
.to_exit_code()
.unwrap_or_exit();
})
} else {
iterator
.for_each(|(i, (_, card))| {
let fmt = if scmd.is_present("find-show") {
&show_format
} else if scmd.is_present("find-list") {
&list_format
} else { // default: find-list
&list_format
};
let data = build_data_object_for_handlebars(i, &card);
let s = fmt
.render("format", &data)
.map_err(Error::from)
.map_err_trace_exit_unwrap(1);
let _ = writeln!(rt.stdout(), "{}", s)
.to_exit_code()
.unwrap_or_exit();
});
} }
} else if scmd.is_present("find-id") { } else { // if not printing, we still have to consume the iterator to report the touched IDs
iterator let _ = iterator.collect::<Vec<_>>();
.for_each(|(_i, (entry, _))| {
writeln!(rt.stdout(), "{}", entry.get_location())
.to_exit_code()
.unwrap_or_exit();
})
} else if scmd.is_present("find-full-id") {
let storepath = rt.store().path().display();
iterator
.for_each(|(_i, (entry, _))| {
writeln!(rt.stdout(), "{}/{}", storepath, entry.get_location())
.to_exit_code()
.unwrap_or_exit();
})
} else {
iterator
.for_each(|(i, (_, card))| {
let fmt = if scmd.is_present("find-show") {
&show_format
} else if scmd.is_present("find-list") {
&list_format
} else { // default: find-list
&list_format
};
let data = build_data_object_for_handlebars(i, &card);
let s = fmt
.render("format", &data)
.map_err(Error::from)
.map_err_trace_exit_unwrap(1);
let _ = writeln!(rt.stdout(), "{}", s)
.to_exit_code()
.unwrap_or_exit();
});
} }
} }