From 3a1abce77780c155c2362d8fe7524b6c3185ad21 Mon Sep 17 00:00:00 2001
From: naefl <luca.s.naef@gmail.com>
Date: Sun, 25 Jul 2021 22:38:36 -0400
Subject: [PATCH] Add fuzzy scripts

---
 fuzzy/README.md               | 32 +++++++++++++++++++++++++++++
 fuzzy/fuzzy_command_search.nu | 38 +++++++++++++++++++++++++++++++++++
 fuzzy/fuzzy_history_search.nu |  1 +
 3 files changed, 71 insertions(+)
 create mode 100644 fuzzy/README.md
 create mode 100644 fuzzy/fuzzy_command_search.nu
 create mode 100644 fuzzy/fuzzy_history_search.nu

diff --git a/fuzzy/README.md b/fuzzy/README.md
new file mode 100644
index 0000000..9a97b94
--- /dev/null
+++ b/fuzzy/README.md
@@ -0,0 +1,32 @@
+# Fuzzy all the things
+
+### Purpose
+
+This contains a few scripts that add fuzzy search interfaces to built-in nu functionalities. Often you
+want to search commands/your history interactively, which is where [fzf](https://github.com/junegunn/fzf) excels at.
+
+
+### How to use
+
+`./fuzzy_history_search.nu` searches your command history and, after pressing `enter`, copies the selected command into the clipboard
+`./fuzzy_command_search.nu` searches both commands and subcommands for both a) names and b) their description, and, after pressing `enter`, copies the selected command into the clipboard
+
+To use them in your day-to-day workflow, add 
+```
+[
+    "source <absolute-path-to-nu_script>/fuzzy/fuzzy_history_search.nu", 
+    "source <absolute-path-to-nu_script>/fuzzy/fuzzy_command_search.nu"
+]
+```
+
+
+to your `startup` array in you config `.toml`.
+
+It's likely a good idea to  also add some short and sweet aliases, e.g.
+
+```
+alias hi = fuzzy-history-search
+alias hf = fuzzy-command-search
+```
+
+To your config
diff --git a/fuzzy/fuzzy_command_search.nu b/fuzzy/fuzzy_command_search.nu
new file mode 100644
index 0000000..57f1a22
--- /dev/null
+++ b/fuzzy/fuzzy_command_search.nu
@@ -0,0 +1,38 @@
+# calculate required tabs/spaces to get a nicely aligned table
+let tablen = 8
+let max-len = (help commands | get subcommands |  each { $it.name | str length } | math max)
+let max-indent = ($max-len / $tablen | into int)
+
+def pad-tabs [input-name] {
+    let input-length = ($input-name| str length) 
+    let required-tabs = $max-indent - ($"($input-length / $tablen | into int)" | str to-int)
+    echo $"( seq $required-tabs | reduce -f "" {$acc + (char tab)})"
+}
+
+# fuzzy search a) commands b) subcommands
+# on selection, will display `help` for the commands
+# and paste command into clipboard for you to paste right away
+
+
+def fuzzy-command-search [] {
+    help (echo (help commands | get subcommands | each {
+            let name = ($it.name | str trim | ansi strip)
+            $"(
+                $name
+            )( pad-tabs $name
+            )(
+                $it.description
+            )" 
+    }) ( 
+    help commands | reject subcommands | each {
+            let name = ($it.name | str trim | ansi strip)
+            $"(
+                $name
+            )(
+               pad-tabs $name
+            )(
+                $it.description
+            )" 
+    }) | str collect (char nl) | ^fzf | cut -f1 -d$'\t' | str trim | clip; paste ) 
+}
+
diff --git a/fuzzy/fuzzy_history_search.nu b/fuzzy/fuzzy_history_search.nu
new file mode 100644
index 0000000..ad2a1ca
--- /dev/null
+++ b/fuzzy/fuzzy_history_search.nu
@@ -0,0 +1 @@
+def fuzzy-history-search [] { cat $nu.history-path | fzf | clip }