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ADVANCED.md: Add change-preview-window example

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Junegunn Choi
2021-12-24 14:41:47 +09:00
parent cd23401411
commit 4311ade535
1 changed files with 21 additions and 17 deletions
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ADVANCED.md
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@@ -429,30 +429,34 @@ Admittedly, that was a silly example. Here's a practical one for browsing
Kubernetes pods. Kubernetes pods.
```bash ```bash
#!/usr/bin/env bash pods() {
FZF_DEFAULT_COMMAND="kubectl get pods --all-namespaces" \
read -ra tokens < <( fzf --info=inline --layout=reverse --header-lines=1 \
kubectl get pods --all-namespaces |
fzf --info=inline --layout=reverse --header-lines=1 --border \
--prompt "$(kubectl config current-context | sed 's/-context$//')> " \ --prompt "$(kubectl config current-context | sed 's/-context$//')> " \
--header $'Press CTRL-O to open log in editor\n\n' \ --header $'╱ Enter (kubectl exec) ╱ CTRL-O (open log in editor) ╱ CTRL-R (reload) ╱\n\n' \
--bind ctrl-/:toggle-preview \ --bind 'ctrl-/:change-preview-window(80%,border-bottom|hidden|)' \
--bind 'ctrl-o:execute:${EDITOR:-vim} <(kubectl logs --namespace {1} {2}) > /dev/tty' \ --bind 'enter:execute:kubectl exec -it --namespace {1} {2} -- bash > /dev/tty' \
--preview-window up,follow \ --bind 'ctrl-o:execute:${EDITOR:-vim} <(kubectl logs --all-containers --namespace {1} {2}) > /dev/tty' \
--preview 'kubectl logs --follow --tail=100000 --namespace {1} {2}' "$@" --bind 'ctrl-r:reload:$FZF_DEFAULT_COMMAND' \
) --preview-window up:follow \
[ ${#tokens} -gt 1 ] && --preview 'kubectl logs --follow --all-containers --tail=10000 --namespace {1} {2}' "$@"
kubectl exec -it --namespace "${tokens[0]}" "${tokens[1]}" -- bash }
``` ```
![image](https://user-images.githubusercontent.com/700826/113473547-1d7a4880-94a5-11eb-98ef-9aa6f0ed215a.png) ![image](https://user-images.githubusercontent.com/700826/113473547-1d7a4880-94a5-11eb-98ef-9aa6f0ed215a.png)
- The preview window will *"log tail"* the pod - The preview window will *"log tail"* the pod
- Holding on to a large amount of log will consume a lot of memory. So we - Holding on to a large amount of log will consume a lot of memory. So we
limited the initial log amount with `--tail=100000`. limited the initial log amount with `--tail=10000`.
- With `execute` binding, you can press CTRL-O to open the log in your editor - `execute` bindings allow you to run any command without leaving fzf
without leaving fzf - Press enter key on a pod to `kubectl exec` into it
- Select a pod (with an enter key) to `kubectl exec` into it - Press CTRL-O to open the log in your editor
- Press CTRL-R to reload the pod list
- Press CTRL-/ repeatedly to to rotate through a different sets of preview
window options
1. `80%,border-bottom`
1. `hidden`
1. Empty string after `|` translates to the default options from `--preview-window`
Key bindings for git objects Key bindings for git objects
---------------------------- ----------------------------