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2020-08-27t7421: eliminate 'grep' check in t7421.4 for mingw compatibilityLibravatar Shourya Shukla1-1/+1
The 'grep' check in test 4 of t7421 resulted in the failure of t7421 on Windows due to a different error message error: cannot spawn git: No such file or directory instead of fatal: exec 'rev-parse': cd to 'my-subm' failed: No such file or directory Tighten up the check to compute 'src_abbrev' by guarding the 'verify_submodule_committish()' call using `p->status !='D'`, so that the former isn't called in case of non-existent submodule directory, consequently, there is no such error message on any execution environment. The same need not be implemented for 'dst_abbrev' and is rather redundant since the conditional 'if (S_ISGITLINK(p->mod_dst))' already guards the 'verify_submodule_committish()' when we have a status of 'D'. Therefore, eliminate the 'grep' check in t7421. Instead, verify the absence of an error message by doing a 'test_must_be_empty' on the file containing the error. Reported-by: Johannes Schindelin <Johannes.Schindelin@gmx.de> Helped-by: Kaartic Sivaraam <kaartic.sivaraam@gmail.com> Mentored-by: Christian Couder <chriscool@tuxfamily.org> Mentored-by: Kaartic Sivaraam <kaartic.sivaraam@gmail.com> Signed-off-by: Shourya Shukla <shouryashukla.oo@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-08-12submodule: port submodule subcommand 'summary' from shell to CLibravatar Prathamesh Chavan1-1/+1
Convert submodule subcommand 'summary' to a builtin and call it via 'git-submodule.sh'. The shell version had to call $diff_cmd twice, once to find the modified modules cared by the user and then again, with that list of modules to do various operations for computing the summary of those modules. On the other hand, the C version does not need a second call to $diff_cmd since it reuses the module list from the first call to do the aforementioned tasks. In the C version, we use the combination of setting a child process' working directory to the submodule path and then calling 'prepare_submodule_repo_env()' which also sets the 'GIT_DIR' to '.git', so that we can be certain that those spawned processes will not access the superproject's ODB by mistake. A behavioural difference between the C and the shell version is that the shell version outputs two line feeds after the 'git log' output when run outside of the tests while the C version outputs one line feed in any case. The reason for this is that the shell version calls log with '--pretty=format:<fmt>' whose output is followed by two echo calls; 'format' does not have "terminator" semantics like its 'tformat' counterpart. So, the log output is terminated by a newline only when invoked by the user and not when invoked from the scripts. This results in the one & two line feed differences in the shell version. On the other hand, the C version calls log with '--pretty=<fmt>' which is equivalent to '--pretty:tformat:<fmt>' which is then followed by a 'printf("\n")'. Due to its "terminator" semantics the log output is always terminated by newline and hence one line feed in any case. Also, when we try to pass an option-like argument after a non-option argument, for instance: git submodule summary HEAD --foo-bar (or) git submodule summary HEAD --cached That argument would be treated like a path to the submodule for which the user is requesting a summary. So, the option ends up having no effect. Though, passing '--quiet' is an exception to this: git submodule summary HEAD --quiet While 'summary' doesn't support '--quiet', we don't get an output for the above command as '--quiet' is treated as a path which means we get an output only if a submodule whose path is '--quiet' exists. The error message in case of computing a summary for non-existent submodules in the C version is different from that of the shell version. Since the new error message is not marked for translation, change the 'test_i18ngrep' in t7421.4 to 'grep'. Mentored-by: Christian Couder <chriscool@tuxfamily.org> Mentored-by: Stefan Beller <stefanbeller@gmail.com> Mentored-by: Kaartic Sivaraam <kaartic.sivaraam@gmail.com> Helped-by: Johannes Schindelin <Johannes.Schindelin@gmx.de> Signed-off-by: Prathamesh Chavan <pc44800@gmail.com> Signed-off-by: Shourya Shukla <shouryashukla.oo@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-08-12t7421: introduce a test script for verifying 'summary' outputLibravatar Shourya Shukla1-0/+69
't7401-submodule-summary.sh' uses 'git add' to add submodules. Therefore, some commands such as 'git submodule init' and 'git submodule deinit' do not work as expected. So, introduce a test script for verifying the 'summary' output for submodules added using 'git submodule add' and notify regarding the above mentioned behaviour in t7401 itself. Mentored-by: Christian Couder <chriscool@tuxfamily.org> Mentored-by: Kaartic Sivaraam <kaartic.sivaraam@gmail.com> Signed-off-by: Shourya Shukla <shouryashukla.oo@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>