refdb_fs: refactor error handling in refdb_reflog_fs__delete#4915
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ethomson merged 1 commit intolibgit2:masterfrom Dec 19, 2018
Merged
refdb_fs: refactor error handling in refdb_reflog_fs__delete#4915ethomson merged 1 commit intolibgit2:masterfrom
refdb_reflog_fs__delete#4915ethomson merged 1 commit intolibgit2:masterfrom
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The function `refdb_reflog_fs__delete` uses the `if (!error && foobar())` pattern of checking, where error conditions are being checked by following calls to different code. This does not match our current style, where the call-site of a function is usually directly responsible for checking the return value. Convert the function to use `if ((error = foobar()) < 0) goto out;` style. Note that this changes the code flow a bit: previously, we were always trying to delete empty reference hierarchies even if deleting the reflog entry has failed. This wasn't much of a problem -- if deletion failed, the hierarchy will still contain at least one file and thus the function call was an expensive no-op. Now, we will only perform this deletion if we have successfully removed the reflog.
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The function
refdb_reflog_fs__deleteuses theif (!error && foobar())pattern of checking, where error conditions are being checked by following calls
to different code. This does not match our current style, where the call-site of
a function is usually directly responsible for checking the return value.
Convert the function to use
if ((error = foobar()) < 0) goto out;style. Notethat this changes the code flow a bit: previously, we were always trying to
delete empty reference hierarchies even if deleting the reflog entry has failed.
This wasn't much of a problem -- if deletion failed, the hierarchy will still
contain at least one file and thus the function call was an expensive no-op.
Now, we will only perform this deletion if we have successfully removed the
reflog.