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@@ -14,4 +14,27 @@ $ echo FULL_COMMIT_ID ...|GIT_DIR=/your/rust/dir/.git ./build-src.sh
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Instead of echoing in the commit IDs, you might pipe in `rustc-commit-db
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list-valid`.
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-The build-src script will prompt you to create patches for new commits.
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+The build-src script will prompt you to create patches for new commits. You
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+will be dropped in a shell prompt with a temporary new, clean, git repository
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+just for this patch. Make any changes necessary to make it build. **Don't**
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+commit any changes! When exiting the shell and the script will use the working
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+tree diff as the patch. The temporary git repository will be deleted. Before
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+dropping into the shell, the script will show you nearby commits, you can try
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+to apply `$PATCH_DIR/that_commit.patch` and see if it works for you.
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+
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+## Editing patches
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+
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+To edit all patches, again make a checkout of the rust source. Then, run:
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+
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+```
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+$ GIT_DIR=/your/rust/dir/.git ./edit-patches.sh
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+```
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+
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+The script will prompt you to make changes. You will be dropped in a shell
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+prompt with a temporary new, clean, git repository just for this patch edit.
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+The original patch will be the HEAD commit in the repository. Make any changes
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+you want. **Don't** commit any changes! When exiting the shell and the script
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+will use the diff between the working tree and the root commit as the patch.
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+The temporary git repository will be deleted. When editing further commits, the
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+previous patch changes will already be applied to the working tree (if
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+succesful).
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Jethro Beekman