improve reporting bugs

Closes #121

Author: stevemao

readme.md

@@ -92,12 +92,24 @@ Pull requests quite welcome, along with any feedback or ideas.
 
 ### Reporting bugs
 
-Providing the original diff text inline in the issue is quite helpful.
+If you find a bug using the following command
 
 ```sh
-git --no-pager diff > output.diff
+git diff HEAD..HEAD^
 ```
 
+You can use [report-bug.sh](./report-bug.sh) we provide
+
+```sh
+./report-bug.sh 'git diff HEAD..HEAD^'
+
+# or
+
+curl https://raw.githubusercontent.com/so-fancy/diff-so-fancy/master/report-bug.sh | bash -s 'git diff HEAD..HEAD^' 'diff.txt'
+```
+
+Grab the output file and attach to the GitHub issue you create. A base64 version is also copied to your clipboard so you can paste to the issue.
+
 ### Hacking
 
 ```sh

report-bug.sh

@@ -0,0 +1,59 @@
+#!/bin/bash
+
+clipboard() {
+  local copy_cmd
+  if [ -n "$PBCOPY_SERVER" ]; then
+    local body="" buffer
+    body=$(cat)
+    # while IFS= read -r buffer; do
+    #   body="$body$buffer\n";
+    # done
+    curl $PBCOPY_SERVER --data-urlencode body="$body" >/dev/null 2>&1
+    return $?
+  fi
+  if type putclip >/dev/null 2>&1; then
+    copy_cmd="putclip"
+  elif [ -e /dev/clipboard ];then
+    cat > /dev/clipboard
+    return 0
+  elif type clip >/dev/null 2>&1; then
+    if [[ $LANG = UTF-8 ]]; then
+      copy_cmd="iconv -f utf-8 -t shift_jis | clip"
+    else
+      copy_cmd=clip
+    fi
+    # copy_cmd=clip
+  elif which pbcopy >/dev/null 2>&1; then
+    copy_cmd="pbcopy"
+  elif which xclip >/dev/null 2>&1; then
+    # copy_cmd="xclip -i -selection clipboard"
+    copy_cmd="xclip"
+  elif which xsel  >/dev/null 2>&1 ; then
+    local copy_cmd="xsel -b"
+  fi
+  if [ -n "$copy_cmd" ] ;then
+    eval $copy_cmd
+  else
+    echo "clipboard is unavailable" 1>&2
+  fi
+}
+
+file=${2:-diff.txt}
+
+echo $1 > $file
+eval $1 >> $file
+
+echo "
+
+" >> $file
+
+echo "$1 --color" >> $file
+eval "$1 --color" >> $file
+
+echo "git config pager.diff" >> $file
+eval "git config pager.diff" >> $file
+
+echo "git config pager.show" >> $file
+eval "git config pager.show" >> $file
+
+cat $file | base64 | clipboard