pixi run confusing error when a command with spaces is passed inside a vector

[traversaro]

Problem description

Reproduce:

git clone -b patch-3 https://github.com/traversaro/pixi
cd pixi/examples/ctypes-factorial/
pixi run compile

The resulting error is:

traversaro@IITBMP014LW012:~/pixi/examples/ctypes-factorial$ pixi run compile
✨ Pixi task (default): "gcc -shared -o src/factorial.so src/factorial.c"
Error launching 'gcc -shared -o src/factorial.so src/factorial.c': No such file or directory (os error 2)

The actual problem is that the command with space is contained in a vector instead of being directly assigned to cmd (I created this on purpouse in traversaro@9a5c2ce), however it is not obvious to understand this from the error (at least, not to me that I spent some time to understand this in a similar example).

[ruben-arts]

I think you want the same thing as this issue #837

[traversaro]

I think you want the same thing as this issue #837

To be honest, I am not sure how to solve, I just spent ~10 minutes tryng to figure out what this error was about, and I thought it was worth reporting it. I guess possible solution are either:

• Have a more clear error message (something like "space detected in element of command vector?, this is is not supported?")
• Have compile = {cmd = ["gcc -shared -o src/factorial.so src/factorial.c"]} be equivalent to compile = {cmd = "gcc -shared -o src/factorial.so src/factorial.c"}

I guess from the point of view of this issue, both are solutions are fine.

[ruben-arts]

Ah yeah, I meant that it can read the list of commands without acting weird on the spaces. The actual multi command is an extra feature indeed!