[TxMt] Re: How to open files read-only?

[Allan Odgaard]

On 2 Oct 2019, at 16:17, Martin Wilhelm Leidig wrote:

> sometimes I open some text file just for reference or to copy 
> something from it.  I’d like to open those read-only to avoid 
> erronously introducing changes.  Could not find some easy way up to 
> now.  Which bright red button in front of me did I miss?

There is no way to open a file as read-only.

Partly for technical reasons, as we support running commands, and 
TextMate can’t be sure that a command won’t make changes to the 
file, but not allowing to run commands at all (for r/o files) would 
remove things like Git actions, word statistics, diff’ing, etc.

But I’m currently doing some refactoring and will consider how 
feasible it is to at least have a read-only mode that disallows the 
built-in mutating actions; the problem here is only that such mode is 
rarely used so I don’t want hundreds of actions to have special code 
to test for read-only mode, hence only if the impact on code can be 
minimal would I want to support this.
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