tmp_dir not work

[seepine]

The .air.toml

tmp_dir = ".tmp"

And run commond air, but create two dir, expect not to generate the tmp folder and main binary in .tmp .

[xingdongzhe]

Can you check with air -c .air.toml ?

[seepine]

@xingdongzhe it cannot work also, The generated binary directory will not be affected by the tmp_dir directory

[seepine]

The build.bin, cannot work on both Unix and Windows simultaneously

[build]
  bin = "./.tmp/main"

[xingdongzhe]

Can you provide a minimal reproducible? And you os version, go version , air version

[seepine]

@xingdongzhe Hi, just like this

[majiayu000]

Hi, I've been looking into this and traced the root cause.

Proposed approach: Fix the hardcoded './tmp/main' in default Build.Cmd (config.go ~line 288/307) to dynamically use the configured TmpDir value. When InitConfig merges user config, if tmp_dir is overridden but Build.Cmd is still the default, update Build.Cmd to use the new tmp_dir path. Also update the default ExcludeDir to reference TmpDir dynamically. Key files: runner/config.go (default build command construction and config merge logic), runner/engine.go (verify checkRunEnv uses correct path). Add test to verify that setting tmp_dir prevents default 'tmp' directory reference in Build.Cmd.

I'll open a draft PR shortly. Happy to adjust based on your preference.