ability for RunStep with stdio inherit mode to succeed when the child process has a failing exit code

[leecannon]

After the merge of #14647 the ability to ignore the exit code of a RunStep to determine success has been removed.

This means that if you use a RunStep to execute your program and it fails due to incorrect arguments, incorrect system state or some other reason the build runner outputs a failed build summary even though in this situation the build was fine.

[andrewrk]

Please share some example code for us to examine

[leecannon]

build.zig:
https://github.com/leecannon/zig-coreutils/blob/a817a79dc98fd394a454d214c1c990a3d889c498/build.zig#L103-L110

result of running with invalid argument (release safe is to disable debug logging):

$ zig build run -Doptimize=ReleaseSafe -- groups user_doesnt_exist
groups: unknown user user_doesnt_exist
run zig-coreutils: error: the following command exited with error code 1:
/home/lee/src/zig-coreutils/zig-out/bin/zig-coreutils groups user_doesnt_exist
Build Summary: 4/6 steps succeeded; 1 failed (disable with -fno-summary)
run transitive failure
└─ run zig-coreutils failure
   ├─ zig build-exe zig-coreutils ReleaseSafe native cached 3ms MaxRSS:35M
   │  └─ options success
   └─ install cached
      └─ install zig-coreutils cached
         └─ zig build-exe zig-coreutils ReleaseSafe native (+1 more reused dependencies)
error: the following build command failed with exit code 1:
/home/lee/src/zig-coreutils/zig-cache/o/ce807d9c2f8585b39598d5fcb20dd3a0/build /home/lee/zig/0.11.0-dev.2157+f56f3c582/files/zig /home/lee/src/zig-coreutils /home/lee/src/zig-coreutils/zig-cache /home/lee/.cache/zig run -Doptimize=ReleaseSafe -- groups user_doesnt_exist

desired output:

$ zig build run -Doptimize=ReleaseSafe -- groups user_doesnt_exist
groups: unknown user user_doesnt_exist

[andrewrk]

This is working entirely as designed. It seems like you would rather run your command without the build system?