feat(cli): add script to generate shell completions

completions/fastanime.bash

@@ -0,0 +1,29 @@
+_fastanime_completion() {
+    local IFS=$'\n'
+    local response
+
+    response=$(env COMP_WORDS="${COMP_WORDS[*]}" COMP_CWORD=$COMP_CWORD _FASTANIME_COMPLETE=bash_complete $1)
+
+    for completion in $response; do
+        IFS=',' read type value <<< "$completion"
+
+        if [[ $type == 'dir' ]]; then
+            COMPREPLY=()
+            compopt -o dirnames
+        elif [[ $type == 'file' ]]; then
+            COMPREPLY=()
+            compopt -o default
+        elif [[ $type == 'plain' ]]; then
+            COMPREPLY+=($value)
+        fi
+    done
+
+    return 0
+}
+
+_fastanime_completion_setup() {
+    complete -o nosort -F _fastanime_completion fastanime
+}
+
+_fastanime_completion_setup;
+

completions/fastanime.fish

@@ -0,0 +1,18 @@
+function _fastanime_completion;
+    set -l response (env _FASTANIME_COMPLETE=fish_complete COMP_WORDS=(commandline -cp) COMP_CWORD=(commandline -t) fastanime);
+
+    for completion in $response;
+        set -l metadata (string split "," $completion);
+
+        if test $metadata[1] = "dir";
+            __fish_complete_directories $metadata[2];
+        else if test $metadata[1] = "file";
+            __fish_complete_path $metadata[2];
+        else if test $metadata[1] = "plain";
+            echo $metadata[2];
+        end;
+    end;
+end;
+
+complete --no-files --command fastanime --arguments "(_fastanime_completion)";
+

completions/fastanime.zsh

@@ -0,0 +1,41 @@
+#compdef fastanime
+
+_fastanime_completion() {
+    local -a completions
+    local -a completions_with_descriptions
+    local -a response
+    (( ! $+commands[fastanime] )) && return 1
+
+    response=("${(@f)$(env COMP_WORDS="${words[*]}" COMP_CWORD=$((CURRENT-1)) _FASTANIME_COMPLETE=zsh_complete fastanime)}")
+
+    for type key descr in ${response}; do
+        if [[ "$type" == "plain" ]]; then
+            if [[ "$descr" == "_" ]]; then
+                completions+=("$key")
+            else
+                completions_with_descriptions+=("$key":"$descr")
+            fi
+        elif [[ "$type" == "dir" ]]; then
+            _path_files -/
+        elif [[ "$type" == "file" ]]; then
+            _path_files -f
+        fi
+    done
+
+    if [ -n "$completions_with_descriptions" ]; then
+        _describe -V unsorted completions_with_descriptions -U
+    fi
+
+    if [ -n "$completions" ]; then
+        compadd -U -V unsorted -a completions
+    fi
+}
+
+if [[ $zsh_eval_context[-1] == loadautofunc ]]; then
+    # autoload from fpath, call function directly
+    _fastanime_completion "$@"
+else
+    # eval/source/. command, register function for later
+    compdef _fastanime_completion fastanime
+fi
+

generate_completions.sh

@@ -0,0 +1,14 @@
+#!/usr/bin/env bash
+APP_DIR="$(
+  cd -- "$(dirname "$0")" >/dev/null 2>&1
+  pwd -P
+)"
+
+# fish shell completions
+_FASTANIME_COMPLETE=fish_source fastanime >"$APP_DIR/completions/fastanime.fish"
+
+# zsh completions
+_FASTANIME_COMPLETE=zsh_source fastanime >"$APP_DIR/completions/fastanime.zsh"
+
+# bash completions
+_FASTANIME_COMPLETE=bash_source fastanime >"$APP_DIR/completions/fastanime.bash"