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Auto merge of #687 - wdv4758h:issue_685, r=kbknapp

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fix(Completions): fish completions for nested subcommands

Fix #685
This commit is contained in:
Homu 2016-10-16 12:02:53 +09:00
commit e151bfc2e8
1 changed files with 35 additions and 57 deletions
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92
src/completions.rs
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@ -231,27 +231,26 @@ complete -F _{name} {name}
fn gen_fish<W: Write>(&self, buf: &mut W) {
let command = self.p.meta.bin_name.as_ref().unwrap();
let subcommands: Vec<_> = get_all_subcommands(self.p);
let has_subcommands = subcommands.len() > 1;
// function to detect subcommand
let detect_subcommand_function = if has_subcommands {
format!(
r#"function __fish_{}_no_subcommand --description "Test if there isn't given a subcommand"
for i in (commandline -opc)
if contains -- $i {}
return 1
let detect_subcommand_function =
r#"function __fish_using_command
set cmd (commandline -opc)
if [ (count $cmd) -eq (count $argv) ]
for i in (seq (count $argv))
if [ $cmd[$i] != $argv[$i] ]
return 1
end
end
return 0
end
return 0
return 1
end
"#, command, subcommands.join(" "))
} else {
"".to_string()
};
"#.to_string();
let mut buffer = detect_subcommand_function;
gen_fish_inner(command, self, vec![], &mut buffer, has_subcommands);
gen_fish_inner(command, self, &command.to_string(), &mut buffer);
w!(buf, buffer.as_bytes());
}
}
@ -359,9 +358,9 @@ fn vals_for(o: &OptBuilder) -> String {
fn gen_fish_inner(root_command: &str,
comp_gen: &ComplGen,
parent_cmds: Vec<&String>,
buffer: &mut String,
has_no_subcommand_fn: bool) {
parent_cmds: &String,
buffer: &mut String) {
// example :
//
// complete
@ -372,20 +371,14 @@ fn gen_fish_inner(root_command: &str,
// -a "{possible_arguments}"
// -r # if require parameter
// -f # don't use file completion
// -n "__fish_seen_subcommand_from install" # complete for subcommand "install"
// -n "__fish_using_command myprog subcmd1" # complete for command "myprog subcmd1"
let command = &comp_gen.p.meta.name;
let subcommands: Vec<_> = get_all_subcommands(comp_gen.p);
let basic_template = format!("complete -c {} -n '__fish_using_command {}'",
root_command,
parent_cmds);
for option in &comp_gen.p.opts {
let mut template = format!("complete -c {}", root_command);
if !parent_cmds.is_empty() {
template.push_str(format!(" -n '__fish_seen_subcommand_from {}'", command).as_str());
} else if has_no_subcommand_fn {
template.push_str(format!(" -n '__fish_{}_no_subcommand'",
comp_gen.p.meta.bin_name.as_ref().unwrap())
.as_str());
}
let mut template = basic_template.clone();
if let Some(data) = option.short {
template.push_str(format!(" -s {}", data).as_str());
}
@ -403,14 +396,7 @@ fn gen_fish_inner(root_command: &str,
}
for flag in &comp_gen.p.flags {
let mut template = format!("complete -c {}", root_command);
if !parent_cmds.is_empty() {
template.push_str(format!(" -n '__fish_seen_subcommand_from {}'", command).as_str());
} else if has_no_subcommand_fn {
template.push_str(format!(" -n '__fish_{}_no_subcommand'",
comp_gen.p.meta.bin_name.as_ref().unwrap())
.as_str());
}
let mut template = basic_template.clone();
if let Some(data) = flag.short {
template.push_str(format!(" -s {}", data).as_str());
}
@ -424,34 +410,26 @@ fn gen_fish_inner(root_command: &str,
buffer.push_str("\n");
}
if subcommands.len() > 1 {
for subcommand in subcommands {
let mut template = format!("complete -c {}", root_command);
if !parent_cmds.is_empty() {
template.push_str(format!(" -n '__fish_seen_subcommand_from {}'",
subcommand)
.as_str());
} else if has_no_subcommand_fn {
template.push_str(format!(" -n '__fish_{}_no_subcommand'",
comp_gen.p.meta.bin_name.as_ref().unwrap())
.as_str());
}
template.push_str(" -f");
template.push_str(format!(" -a '{}'", subcommand).as_str());
buffer.push_str(template.as_str());
buffer.push_str("\n");
}
for subcommand in &comp_gen.p.subcommands {
let mut template = basic_template.clone();
template.push_str(" -f");
template.push_str(format!(" -a '{}'", &subcommand.p.meta.name).as_str());
buffer.push_str(template.as_str());
buffer.push_str("\n");
}
// generate options of subcommands
for subcommand in &comp_gen.p.subcommands {
let sub_comp_gen = ComplGen::new(&subcommand.p);
// make new "parent_cmds" for different subcommands
let mut sub_parent_cmds = parent_cmds.clone();
sub_parent_cmds.push(command);
if !sub_parent_cmds.is_empty() {
sub_parent_cmds.push_str(" ");
}
sub_parent_cmds.push_str(&subcommand.p.meta.name);
gen_fish_inner(root_command,
&sub_comp_gen,
sub_parent_cmds,
buffer,
has_no_subcommand_fn);
&mut sub_parent_cmds,
buffer);
}
}