Honor read-only flag when writing to config backends #4217
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The config_file.h header provides some inline declarations accessing the `git_config_backend`, but misses its declaration. Add the missing include for "git2/sys/config.h" to add it.
ethomson
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Apr 25, 2017
src/config.c
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| if (git_vector_length(&cfg->files) == 0) { | ||
| giterr_set(GITERR_CONFIG, | ||
| "cannot set value for '%s' when no config files exist", name); |
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If I can bikeshed here just a touch, it might be nice to switch this message on whether we're in a set function or in delete_entry.
Configuration backends have a readonly-flag which is currently used to distinguish configuration snapshots. But somewhat unexpectedly, we do not use the flag to prevent writing to a readonly backend but happily proceed to do so. This commit modifies logic to also honor the readonly flag for configuration setters. We will now traverse through all backends and pick the first one which is not marked as read-only whenever we want to write new configuration.
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Okay, I've extended the function to accept a use-case. Right now it feels a bit overengineered, so I initially thought about extending the function to also handle the other use cases (lock/unlock and read). It would then be some kind of "get me the right thing for whatever I want to do" function, so it would also honor the readonly flag. But the interface would look horrible. So I refrained from doing so and instead stayed with this version. |
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Seems fine to me. Thanks! |
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Configuration backends have a readonly-flag which is currently used to
distinguish configuration snapshots. But somewhat unexpectedly, we do
not use the flag to prevent writing to a readonly backend but happily
proceed to do so.
This commit modifies logic to also honor the readonly flag for
configuration setters. We will now traverse through all backends and
pick the first one which is not marked as read-only whenever we want to
write new configuration.
Implements #4134