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(Italian)
96 lines
4.6 KiB
Markdown
96 lines
4.6 KiB
Markdown
# Configurazione Avanzata
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Nonostante Starship sia una shell versatile, a volte devi fare qualche modifica in più in `starship.toml` per ottenere alcune cose. Questa pagina descrive alcune tecniche di configurazione avanzate utilizzate in Starship.
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::: warning
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Le configurazioni in questa sezione sono soggette a modifiche nelle future versioni di Starship.
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:::
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## Comandi personalizzati di pre-prompt e pre-esecuzione per Bash
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Bash non ha un framework preexec/precmd formale come la maggior parte delle altre shell. Per questo motivo, è difficile fornire hook completamente personalizzabile in `bash`. Tuttavia, Starship dà la limitata possibilità di inserire le tue funzioni nella procedura prompt-rendering:
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- Per eseguire una funzione personalizzata a destra del prompt prima che venga disegnato, definisci una nuova funzione e assegna il suo nome a `starship_precmd_user_func`. Per esempio, per visualizzare l'icona di un razzo prima del prompt, si può usare il codice seguente
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```bash
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function blastoff(){
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echo "🚀"
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}
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starship_precmd_user_func="blastoff"
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```
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- Per eseguire una funzione personalizzata prima dell'esecuzione di un comando, è possibile utilizzare il meccanismo trappola [`DEBUG`](https://jichu4n.com/posts/debug-trap-and-prompt_command-in-bash/). Tuttavia, **devi** intrappolare il segnale DEBUG *prima di* inizializzare Starship! Starship può preservare il valore trappola di DEBUG, ma se la trappola viene sovrascritta dopo l'avvio di Starship, alcune funzionalità non funzioneranno.
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```bash
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function blastoff(){
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echo "🚀"
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}
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trap blastoff DEBUG # Trap DEBUG *prima* di eseguire starship
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eval $(starship bash)
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```
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## Cambia il titolo della finestra
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Alcune shell prompt cambieranno automaticamente il titolo della finestra (ad esempio per riflettere la directory di lavoro). Fish lo fa per impostazione predefinita. Starship non lo fa, ma è abbastanza semplice aggiungere questa funzionalità a `bash` o `zsh`.
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Innanzitutto, bisogna definire una funzione per il cambio del titolo della finestra (identica sia per bash che zsh):
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```bash
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function set_win_title(){
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echo -ne "\033]0; IL_TUO_TITOLO_QUI \007"
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}
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```
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Puoi usare delle variabili per personalizzare questo titolo (`$USER`, `$HOSTNAME`, e `$PWD` sono le scelte più popolari).
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In `bash`, impostare questa funzione per essere la precmd Starship function:
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```bash
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starship_precmd_user_func="set_win_title"
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```
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In `zsh`, aggiungi questo `precmd_functions` all'array:
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```bash
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precmd_functions+=(set_win_title)
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```
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Se ti piace il risultato, aggiungi queste righe al tuo file shell di configurazione (`~/.bashrc` o `~/.zshrc`) per renderlo permanente.
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Ad esempio, se desideri visualizzare la directory corrente nel titolo della scheda del terminale, aggiungi la seguente snippet al tuo `~/.bashrc` or `~/.zshrc`:
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```bash
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function set_win_title(){
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echo -ne "\033]0; $(basename "$PWD") \007"
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}
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starship_precmd_user_func="set_win_title"
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```
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## Stringhe di stile
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Le stringhe di stile sono un elenco di parole, separate da spazi bianchi. Le parole non sono sensibili alle maiuscole (cioè `grassetto` e `BoLd` sono considerate la stessa stringa). Ogni parola può essere una delle seguenti:
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- `bold`
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- `italic`
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- `underline`
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- `dimmed`
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- `inverted`
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- `bg:<color>`
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- `fg:<color>`
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- `<color>`
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- `none`
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dove `<color>` è un colore specifico (discusso in seguito). `fg:<color>` e `<color>` attualmente fanno la stessa cosa, anche se questo potrebbe cambiare in futuro. `inverted` scambia lo sfondo e i colori in primo piano. L'ordine delle parole nella stringa non conta.
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Il token `none` sovrascrive tutti gli altri token in una stringa se non fa parte di uno specificatore `bg:`, così ad esempio `fg:red none fg:blue` creerà una stringa senza stile. `bg:none` imposta come colore di sfondo quello predefinito così `fg:red bg:none` è equivalente a `red` o `fg:red` e `bg:green fg:red bg:none` è equivalente a `fg:red` o `red`. Potrà diventare un errore usare `none` in combinazione con altri token in futuro.
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Uno colore specifico può essere uno di questi:
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- Uno dei colori standard del terminale: `nero`, `rosso`, `verde`, `blu`, `giallo`, `viola`, `ciano`, `bianco`. Puoi eventualmente utilizzare il prefisso `bright-` per ottenere la versione luminosa (es. `bright-white`).
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- Un `#` seguito da un valore esadecimale a sei cifre. Questo specifica un [colore esagesimale in RGB](https://www.w3schools.com/colors/colors_hexadecimal.asp).
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- Un numero compreso tra 0-255. Specifica un [codice colore ANSI a 8 bit](https://i.stack.imgur.com/KTSQa.png).
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Se sono specificati più colori per il primo piano/sfondo, l'ultimo nella stringa avrà la priorità.
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