Trilltechnician f8e31d49e0 fix(ui): Prevent syntax clipping in interactive command search
This commit resolves the issue where command syntax examples were being
clipped/truncated on the right side of the interactive fzf search UI,
making them difficult to read and losing critical information.

## Problem
The previous layout calculation attempted to use nearly all terminal
width, but failed to account for:
- fzf border rendering (2 chars)
- Internal fzf padding and overhead (varies)
- Terminal emulator rendering differences
- ANSI color codes affecting length calculations

This resulted in syntax strings like "chmod [OPTION] MODE FILE..."
being displayed as "chmod [OPTION] MODE FI.." with the end clipped.

## Root Cause Analysis
1. Initial approach calculated for full TERM_WIDTH
2. Second attempt accounted for fzf border (TERM_WIDTH - 2)
3. Both failed because:
   - Colorization happened before length calculations
   - No safety buffer for fzf's internal rendering
   - Dynamic right-alignment attempted to maximize space
   - Unpredictable terminal rendering overhead

## Solution Implemented
Completely rewrote the layout calculation with a conservative,
fixed-column approach:

1. **Conservative Safe Width** (line 1072):
   - Uses SAFE_WIDTH = TERM_WIDTH - 6
   - Accounts for 2-char border + 4-char safety buffer
   - Guarantees content fits within fzf display

2. **Fixed Column Layout** (lines 1077-1082):
   - Syntax column: 50% of safe width (min 30 chars)
   - Description column: remainder (min 25 chars)
   - 8-char fixed separator space
   - Prioritizes syntax visibility over description length

3. **Pre-truncation Strategy** (lines 1115-1122):
   - Truncate to column widths BEFORE colorizing
   - Calculate padding using plain text length only
   - ANSI codes don't affect layout calculations

4. **Simplified Padding** (lines 1124-1131):
   - Fixed column positions (no dynamic right-align)
   - Consistent spacing across all entries
   - Minimum 3-char padding between columns

## Results
- All syntax examples display fully without clipping
- Consistent, predictable column layout
- Works across all terminal widths (tested 60-120 cols)
- Descriptions may be slightly shortened, but syntax always visible
- Clean, professional appearance

## Technical Details
- Changed from 2-pass dynamic layout to single-pass fixed columns
- Eliminated array buffering (CMD_NAMES, DESCRIPTIONS, SYNTAXES)
- Reduced complexity from ~80 lines to ~54 lines
- More maintainable and easier to understand

## Testing
Verified on 80-column terminal:
- Visible length: 72 chars (safe width: 74, terminal: 80)
- All test commands fit within safe bounds
- No clipping observed with fzf border enabled

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
2025-10-31 11:57:12 -07:00
2025-10-27 20:19:45 -07:00
2025-10-27 20:19:45 -07:00

Bash Buddy

🚀 CLI assistant for impromptu bash scripting help

Description

Interactive bash command helper that uses fzf to browse common bash commands and their options. Perfect for when you need a quick reminder of command flags and usage without digging through man pages.

Features

  • 🔍 Interactive Search - Browse commands with fzf fuzzy finder
  • 📖 Command Descriptions - Clear explanations for each command
  • 🎯 Flag Filtering - Search for specific command options
  • 🎨 Color-Coded Output - Easy-to-read terminal output
  • 📚 Smart Help - Works with both built-in and external commands
  • Quick Access - Fast command reference at your fingertips

Dependencies

# fzf - Fuzzy finder (required)
sudo apt install fzf      # Ubuntu/Debian
brew install fzf          # macOS
sudo pacman -S fzf        # Arch

Installation

# Clone the repository
git clone http://localhost:3030/trill-technician/bash-buddy.git
cd bash-buddy

# Make executable
chmod +x bash-helper.sh

# Optional: Install system-wide
sudo cp bash-helper.sh /usr/local/bin/bash-helper

# Or add to your PATH
echo 'export PATH="$HOME/bash-buddy:$PATH"' >> ~/.bashrc
source ~/.bashrc

Usage

./bash-helper.sh

Workflow

  1. Launch - Run the script
  2. Browse - Use arrow keys to navigate commands
  3. Select - Press Enter to choose a command
  4. Filter - Optionally enter a keyword to filter flags
  5. View - See all available flags for the command

Example Session

$ ./bash-helper.sh

> ls:List directory contents
  cd:Change the current directory
  pwd:Print the name of the current working directory
  cp:Copy files and directories
  mv:Move or rename files and directories
  ...

Command: ls
Description: List directory contents
Filter flags (optional): size

    Flags for ls:
       -s, --size
              print the allocated size of each file, in blocks
       -S     sort by file size, largest first
       --block-size=SIZE
              with -l, scale sizes by SIZE when printing them

Included Commands

The script includes help for these common bash commands:

Command Description
ls List directory contents
cd Change the current directory
pwd Print working directory
cp Copy files and directories
mv Move or rename files
rm Remove files or directories
mkdir Create directories
rmdir Remove empty directories
grep Search text patterns
find Search for files
echo Display text

Customization

Adding More Commands

Edit the COMMANDS array in bash-helper.sh:

COMMANDS=(
  "command-name:Description of what it does"
  "wget:Download files from the web"
  "curl:Transfer data with URLs"
  "tar:Archive files"
  # Add your own...
)

Changing Colors

Modify the color variables at the top of the show_flags() function:

RED='\033[0;31m'
GREEN='\033[0;32m'
YELLOW='\033[0;33m'
NC='\033[0m'  # No Color

How It Works

  1. Command List - Defines an array of common bash commands with descriptions
  2. FZF Selection - Presents commands in an interactive fuzzy finder
  3. Help Extraction - Retrieves flag information from:
    • Built-in commands using help
    • External commands using man pages
  4. Filtered Output - Optionally filters flags based on your search term

Tips

  • Use partial matching in fzf (type any part of command name)
  • Filter flags to find specific options quickly
  • Add your most-used commands to the array
  • Combine with aliases for even faster access
# Add to ~/.bashrc
alias bh='bash-helper.sh'

Contributing

Feel free to:

  • Add more commands to the default list
  • Improve flag extraction logic
  • Enhance the user interface
  • Fix bugs or improve documentation

License

MIT License - feel free to modify and distribute

Author

Created as a quick reference tool for bash command-line work


Pro Tip: Bookmark common flag patterns you discover, or add them as comments in the script for quick reference!

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Description
Token-friendly interactive man-page / command flag browser (fzf-based)
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