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2019-01-22Using fork of metastore to work when getpwuid isn't usableMohammad Akhlaghi-0/+0
After testing the built of Metastore on a server, I noticed that because its `/etc/passwd' doesn't have the list of users, the `getpwuid' call within metastore failed and wouldn't let it finish. So I looked into the code and was able to implement a solution to this problem by adding two options to it for default values for the user and group. Also, file attributes are not necessary in our (current) use case of metastore and caused crashes on our server, so they are also disabled.
2019-01-21Libbsd added as a dependency of MetastoreMohammad Akhlaghi-0/+0
Metastore depends on `bsd/string.h' to work properly (atleast on GNU/Linux systems). The first system I tried building with had that library, so I didn't notice! With this commit, we also build `libbsd' as part of the pipeline. Also, I couldn't find libbsd's version in any of its installed headers, so like Libjpeg, we can't actually check and will directly write our internal version into the paper.
2019-01-21Metastore package now installed to allow keeping file meta-dataMohammad Akhlaghi-0/+0
The pipeline heavily depends on file meta data (and in particular the modification dates), for example the configuration-Makefiles within the pipeline are set as prerequisites to the rules of the pipeline. However, when Git checks out a branch, it doesn't preserve the meta-data of the files unique to that branch (for example program source files or configuration-Makefiles). As a result, the rules that depend on them will be re-done. This is especially troublesome in the scenario of this reproducible paper project because we commonly need to switch between branches (for example to import recent work in the pipeline into the projects). After some searching, I think the Metastore program is the best solution. Metastore is now built as part of the pipeline and through two Git hooks, it is called by Git to store the original meta-data of files into a binary file that is version controlled (and managed by Metastore).