eagle-diff-git

#!/bin/bash
# git diff wrapper to handle the fixed arguments that git diff needs
#
# Usage:
# 1. add a git config block like (~/.gitconfig or project level if you prefer)
# [diff "eagle"]
#    command = path/to/this/script
# 2. add a .gitattributes file in your project root with the following lines
#   *.sch diff=eagle
#   *.brd diff=eagle
#
# See git(1) for documentation (look for "external diff driver").
# Parameters: path old-file old-hex old-mode new-file new-hex new-mode

set -e

# TODO detect based on contents, not filename. move into eagle-diff
grep -q '[.]sch$' <<< "$2" && : ${DPI:=100}
grep -q '[.]brd$' <<< "$2" && : ${DPI:=600}
: ${DPI:=600}

DIRECTORY="$(mktemp -d)"
function cleanup { rm -rf "$DIRECTORY"; }
trap cleanup EXIT

# TODO find a way to let the user set --eagle=...
eagle-diff -d "$DPI" "$2" "$5" "$DIRECTORY/eagle_diff"

# TODO don't rely on the .desktop files name being correct
APP="$(xdg-mime query default image/png | sed s/.desktop$//)"
"$APP" "$DIRECTORY"/eagle_diff/*.png