bug(install): --backup=nil and --backup --suffix= silently skip backup creation
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Description
Hi, uutils mainteners
we confirmed install too not just cp, when using --backup and an empty suffix, it do not create the backup
relunsec@relunsec:~/software/coreutils/target/debug$ ./install --backup a b --suffix=
relunsec@relunsec:~/software/coreutils/target/debug$ ls b~
ls: cannot access 'b~': No such file or directory
relunsec@relunsec:~/software/coreutils/target/debug$ gnuinstall --backup a b --suffix=
relunsec@relunsec:~/software/coreutils/target/debug$ ls b~
b~
relunsec@relunsec:~/software/coreutils/target/debug$
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First steps
- Read the whole issue, then the project's contributing guide.
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- Open a pull request that references the issue number.
Research direction
Start at the Rust implementation or entry point for the install command and trace handling of --backup, --backup=nil, and an empty --suffix. Reproduce the shown commands, compare the result with GNU install, and verify that backup creation produces b~ when the suffix is empty.
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Assessment
- Tech stack
- rust
- Domain
- cli
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Active
- Clarity
- Mostly clear
- Newbie friendliness
- 68/100