Getting current path of the executing Lua script?

aapo.talvensaari · 2016-01-19T01:08:15+00:00

agentzh,To be honest, I don't have a real use case, just pondering about it. In this case, I'm not too concerned about performance, so the call...

Getting current path of the executing Lua script?

aapo.talvensaari

Is there a way to get current path of the executing Lua script in OpenResty?

E.g.

content_by_lua_file 'test.lua';

And in test.lua:

local currentPath = -- something here?

Because otherwise everything seem to be relative to nginx binary path.

lordnynex

Hello,

I use debug.getinfo(1). The returned table will have a 'source' key. I see the following idiom used quite a bit

local current_path = string.sub(debug.getinfo(1).source, 2, string.len("/scriptname.lua") * -1).

On Mon, Jan 18, 2016 at 9:08 AM, Aapo Talvensaari <aapo.ta...@gmail.com> wrote:

Is there a way to get current path of the executing Lua script in OpenResty?

E.g.

content_by_lua_file 'test.lua';

And in test.lua:

local currentPath = -- something here?

Because otherwise everything seem to be relative to nginx binary path.

.

aapo.talvensaari

On Monday, 18 January 2016 20:12:45 UTC+2, Lord Nynex wrote:

Hello,

I use debug.getinfo(1). The returned table will have a 'source' key. I see the following idiom used quite a bit

local current_path = string.sub(debug.getinfo(1).source, 2, string.len("/scriptname.lua") * -1)

Is there any other ways than using debug-library? I'm not sure I want to add dependency to debug library in any of my libs. But thanks anyway, this is one possibility.

lordnynex

Unfortunately I have not seen another way. If you find a better way please let me know. I do not like this approach either.

On Mon, Jan 18, 2016 at 1:56 PM, Aapo Talvensaari <aapo.ta...@gmail.com> wrote:

On Monday, 18 January 2016 20:12:45 UTC+2, Lord Nynex wrote:
Hello,

I use debug.getinfo(1). The returned table will have a 'source' key. I see the following idiom used quite a bit

local current_path = string.sub(debug.getinfo(1).source, 2, string.len("/scriptname.lua") * -1)

Is there any other ways than using debug-library? I'm not sure I want to add dependency to debug library in any of my libs. But thanks anyway, this is one possibility.

.