git difftool, open all diff files immediately, not in serial

Question

The default git diff behavior is to open each diff file in serial (wait for previous file to be closed before opening next file). I'm looking for a way to open all the files at once - in BeyondCompare for example this would open all the files in tabs within the same BC window. This would make it easier to review a complex set of changes; flick back and forwards between the diff files and ignore unimportant files.

Accepted Answer

Here's what I settled on...

Copy the following code to a file called `git-diffall` (no extension):

```
#!/bin/sh
git diff --name-only "$@" | while read filename; do
    git difftool "$@" --no-prompt "$filename" &
done
```

Place the file in the `cmd` folder of your git install dir (eg `C:\Program Files (x86)\Git\cmd`)

And use like you would `git diff`:

```
git diffall
git diffall HEAD
git diffall --cached 
git diffall rev1..rev2
etc...
```

Notes: The key to it is the & param which tells the external diff command to run in a background task so files are processed immediately. In the case of BeyondCompare this opens one screen with each file in its own tab.

git difftool, open all diff files immediately, not in serial

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