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* fsck: git receive-pack: support excluding objects from fsck'ingJohannes Schindelin2015-06-231-0/+1
| | | | | | | | | | | | | | | | | | | The optional new config option `receive.fsck.skipList` specifies the path to a file listing the names, i.e. SHA-1s, one per line, of objects that are to be ignored by `git receive-pack` when `receive.fsckObjects = true`. This is extremely handy in case of legacy repositories where it would cause more pain to change incorrect objects than to live with them (e.g. a duplicate 'author' line in an early commit object). The intended use case is for server administrators to inspect objects that are reported by `git push` as being too problematic to enter the repository, and to add the objects' SHA-1 to a (preferably sorted) file when the objects are legitimate, i.e. when it is determined that those problematic objects should be allowed to enter the server. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* fsck: optionally ignore specific fsck issues completelyJohannes Schindelin2015-06-231-0/+1
| | | | | | | | | | | | | | | An fsck issue in a legacy repository might be so common that one would like not to bother the user with mentioning it at all. With this change, that is possible by setting the respective message type to "ignore". This change "abuses" the missingEmail=warn test to verify that "ignore" is also accepted and works correctly. And while at it, it makes sure that multiple options work, too (they are passed to unpack-objects or index-pack as a comma-separated list via the --strict=... command-line option). Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* fsck (receive-pack): allow demoting errors to warningsJohannes Schindelin2015-06-231-0/+1
| | | | | | | | | | | | | | | | | | | | | For example, missing emails in commit and tag objects can be demoted to mere warnings with git config receive.fsck.missingemail=warn The value is actually a comma-separated list. In case that the same key is listed in multiple receive.fsck.<msg-id> lines in the config, the latter configuration wins (this can happen for example when both $HOME/.gitconfig and .git/config contain message type settings). As git receive-pack does not actually perform the checks, it hands off the setting to index-pack or unpack-objects in the form of an optional argument to the --strict option. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* fsck: offer a function to demote fsck errors to warningsJohannes Schindelin2015-06-231-2/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | There are legacy repositories out there whose older commits and tags have issues that prevent pushing them when 'receive.fsckObjects' is set. One real-life example is a commit object that has been hand-crafted to list two authors. Often, it is not possible to fix those issues without disrupting the work with said repositories, yet it is still desirable to perform checks by setting `receive.fsckObjects = true`. This commit is the first step to allow demoting specific fsck issues to mere warnings. The `fsck_set_msg_types()` function added by this commit parses a list of settings in the form: missingemail=warn,badname=warn,... Unfortunately, the FSCK_WARN/FSCK_ERROR flag is only really heeded by git fsck so far, but other call paths (e.g. git index-pack --strict) error out *always* no matter what type was specified. Therefore, we need to take extra care to set all message types to FSCK_ERROR by default in those cases. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* fsck: introduce identifiers for fsck messagesJohannes Schindelin2015-06-221-3/+2
| | | | | | | | | | | | | | | | | | | | | Instead of specifying whether a message by the fsck machinery constitutes an error or a warning, let's specify an identifier relating to the concrete problem that was encountered. This is necessary for upcoming support to be able to demote certain errors to warnings. In the process, simplify the requirements on the calling code: instead of having to handle full-blown varargs in every callback, we now send a string buffer ready to be used by the callback. We could use a simple enum for the message IDs here, but we want to guarantee that the enum values are associated with the appropriate message types (i.e. error or warning?). Besides, we want to introduce a parser in the next commit that maps the string representation to the enum value, hence we use the slightly ugly preprocessor construct that is extensible for use with said parser. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* fsck: introduce fsck optionsJohannes Schindelin2015-06-221-3/+14
| | | | | | | | | Just like the diff machinery, we are about to introduce more settings, therefore it makes sense to carry them around as a (pointer to a) struct containing all of them. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* fsck_object(): allow passing object data separately from the object itselfJohannes Schindelin2014-09-101-1/+3
| | | | | | | | | | | | | | | | | | | | | | When fsck'ing an incoming pack, we need to fsck objects that cannot be read via read_sha1_file() because they are not local yet (and might even be rejected if transfer.fsckobjects is set to 'true'). For commits, there is a hack in place: we basically cache commit objects' buffers anyway, but the same is not true, say, for tag objects. By refactoring fsck_object() to take the object buffer and size as optional arguments -- optional, because we still fall back to the previous method to look at the cached commit objects if the caller passes NULL -- we prepare the machinery for the upcoming handling of tag objects. The assumption that such buffers are inherently NUL terminated is now wrong, of course, hence we pass the size of the buffer so that we can add a sanity check later, to prevent running past the end of the buffer. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* Check the format of more printf-type functionsTarmigan Casebolt2009-11-151-0/+1
| | | | | | | | | | | We already have these checks in many printf-type functions that have prototypes which are in header files. Add these same checks to some more prototypes in header functions and to static functions in .c files. cc: Miklos Vajna <vmiklos@frugalware.org> Signed-off-by: Tarmigan Casebolt <tarmigan+git@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* Fix typos / spelling in commentsMike Ralphson2009-04-221-1/+1
| | | | | Signed-off-by: Mike Ralphson <mike@abacus.co.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* add common fsck error printing functionMartin Koegler2008-02-251-0/+2
| | | | | Signed-off-by: Martin Koegler <mkoegler@auto.tuwien.ac.at> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* builtin-fsck: move common object checking code to fsck.cMartin Koegler2008-02-251-0/+7
| | | | | Signed-off-by: Martin Koegler <mkoegler@auto.tuwien.ac.at> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* add generic, type aware object chain walkerMartin Koegler2008-02-251-0/+23
The requirements are: * it may not crash on NULL pointers * a callback function is needed, as index-pack/unpack-objects need to do different things * the type information is needed to check the expected <-> real type and print better error messages Signed-off-by: Martin Koegler <mkoegler@auto.tuwien.ac.at> Signed-off-by: Junio C Hamano <gitster@pobox.com>