CODEWITHSUNDEEP
permissionsruntimedeno
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Reputation: 823

How to add permission flags in deno compile?

I created a script, and I want to use deno compile --unstable [src] to make it into an executable, but when I try to run the executable it says permission denied.

My question is is there a way to create the executable with permission flags like you can deno install --flag [src].

Upvotes: 2

Views: 1400

Answers (1)

jps
jps

Reputation: 22545

From Deno 1.7.0 on, the compile function has the same permission flags that we know from the run command.

Code that would need permissions (e.g. --allow-write) when run as a script, needs the same permissions given to the compile command.

For example, consider this short script that creates a file and writes text into it:

const write = Deno.writeTextFile("./hello.txt", "Hello World!");
write.then(() => console.log("File written to ./hello.txt"));

Run as a script with --allow-write:

> deno run --allow-write .\filewrite.ts
File written to ./hello.txt

Compiled without --allow-write. The error message could be interpreted as if you need to apply the option to the created .exe, but in fact it needs to be applied during compilation:

>deno compile --unstable .\filewrite.ts
...Emit filewrite

>.\filewrite.exe
error: PermissionDenied: write access to "./hello.txt", run again with the --allow-write flag

Compiled with the --allow-write flag:

>deno compile --unstable --allow-write .\filewrite.ts
...Emit filewrite

>.\filewrite.exe
File written to ./hello.txt

The same is of course true for the --allow-read and --allow-net flags.

The previous Deno version (1.6.3) didn't have these compiler flags and behaved as if all permissions had been granted. See the older revision of this answer

Upvotes: 3

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