Thanks.
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Closed #1215 via 180afaf3b1a7c5a3b8f31815fde1e398594e22fb.
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Would you accept a pull request that that adds a `rpmlua` executable and makes
it behave more or less like my Python script?
Note that my C skills are rusty and my autotools skills are almost nonexistent,
so I will probably need some guidance.
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This gets the job done:
```python
librpm = cdll.LoadLibrary("librpm.so.9")
# Load general configuration (such as macros defined in standard places)
# Second argument is target platform, NULL is the default
librpm.rpmReadConfigFiles(librpm.rpmcliRcfile, None)
```
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My script doesn't seem to see system defined macros. Do I need to call
something explicitly to load them?
```
$ rpmlua
RPM Interactive Lua 5.3 Interpreter
> print(rpm.expand("%python3"))
%python3
> rpm.define("test b")
> print(rpm.expand("%test"))
b
>
$ rpm --eval "%{lua:rpm.interactive()}"
Just a word of caution: rpmluaRunScript() and rpmluaRunScriptFile() are not
considered public API and are not available in the public headers on C side,
although the symbols are accessible in the ABI. So they are subject to change
without further notice, although the likelihood of that happening
Wonderfully weird stuff :smile:
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Here is my draft blog post about how to get a nicer console
https://hackmd.io/@hroncok/SyNjuxcqL
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Adding a native way to flush the output shouldn't be hard. This is code that
for all practical purposes nobody has touched in 16 years so it's not
surprising if its a bit rusty and squeaky...
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Or if there was a way to flush to the output the content collected by the macro
engine
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I think it could be enough if the documentation give more reasonable example
such as:
~~~
rpm.expand("%{echo:some message}")
~~~
Which provides expected output:
~~~
$ rpm --eval "%{lua:rpm.interactive()}"
RPM Interactive Lua 5.3 Interpreter
> rpm.expand("%{echo:some message}")
some message
> r
I meant something a bit more sophisticated. I have so far:
```python
#!/usr/bin/python3
import sys
from ctypes import cdll, c_char_p
librpmio = cdll.LoadLibrary("librpmio.so.9")
adjust_path = b"""
if os.getenv("LUA_PATH") then
package.path = os.getenv("LUA_PATH") .. ";" .. package.path
end
If by "something like the above" you mean something that allows actual
interactive experience, sure :sweat_smile:
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I have it all figured out. Blog post coming. Would you consider adding
something like the above to rpm itself?
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Ouch :rofl:
The interactive interpreter was added years before my time, but as far as I can
recall, you're the first person *ever* to try actually using it. There may be
some resident fauna there... :beetle: :bug:
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This gets the job done:
```python
from ctypes import cdll, c_char_p
librpmio = cdll.LoadLibrary("librpmio.so.9")
librpmio.rpmluaRunScript(None, c_char_p(b"rpm.interactive()"), None)
```
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Can I do anything to have the interneter not in the macro expansion mode?
Dne st 13. 5. 2020 11:03 uživatel Michael Schroeder <
notificati...@github.com> napsal:
> This happens because you're in a macro expansion, so all the output is
> collected and returned to the macro engine.
>
> —
> You are
This happens because you're in a macro expansion, so all the output is
collected and returned to the macro engine.
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I'd liek to use the interactive Lua console, however, it doesn't seem to be
very... interactive.
```
$ rpm --eval "%{lua:rpm.interactive()}"
RPM Interactive Lua 5.3 Interpreter
>
```
So far so good...
```
> print"a"
>
```
Nothing...
```
> print"a"
> print"a"
> print"a"
> print"a"
>
```
Not
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