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2016-10-10Merge branch 'rs/qsort'Libravatar Junio C Hamano1-0/+37
We call "qsort(array, nelem, sizeof(array[0]), fn)", and most of the time third parameter is redundant. A new QSORT() macro lets us omit it. * rs/qsort: show-branch: use QSORT use QSORT, part 2 coccicheck: use --all-includes by default remove unnecessary check before QSORT use QSORT add QSORT
2016-10-06Merge branch 'rs/cocci'Libravatar Junio C Hamano2-1/+37
Code clean-up with help from coccinelle tool continues. * rs/cocci: coccicheck: make transformation for strbuf_addf(sb, "...") more precise use strbuf_add_unique_abbrev() for adding short hashes, part 2 use strbuf_addstr() instead of strbuf_addf() with "%s", part 2 gitignore: ignore output files of coccicheck make target
2016-10-03Merge branch 'rs/copy-array'Libravatar Junio C Hamano1-0/+26
Code cleanup. * rs/copy-array: use COPY_ARRAY add COPY_ARRAY
2016-10-03coccicheck: make transformation for strbuf_addf(sb, "...") more preciseLibravatar René Scharfe1-3/+26
We can replace strbuf_addf() calls that just add a simple string with calls to strbuf_addstr() to make the intent clearer. We need to be careful if that string contains printf format specifications like %%, though, as a simple replacement would change the output. Add checks to the semantic patch to make sure we only perform the transformation if the second argument is a string constant (possibly translated) that doesn't contain any percent signs. Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-09-29remove unnecessary check before QSORTLibravatar René Scharfe1-0/+18
Add a semantic patch for removing checks similar to the one that QSORT already does internally and apply it to the code base. Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-09-29add QSORTLibravatar René Scharfe1-0/+19
Add the macro QSORT, a convenient wrapper for qsort(3) that infers the size of the array elements and supports the convention of initializing empty arrays with a NULL pointer, which we use in some places. Calling qsort(3) directly with a NULL pointer is undefined -- even with an element count of zero -- and allows the compiler to optimize away any following NULL checks. Using the macro avoids such surprises. Add a semantic patch as well to demonstrate the macro's usage and to automate the transformation of trivial cases. Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-09-27use strbuf_add_unique_abbrev() for adding short hashes, part 2Libravatar René Scharfe1-0/+6
Call strbuf_add_unique_abbrev() to add abbreviated hashes to strbufs instead of taking detours through find_unique_abbrev() and its static buffer. This is shorter and a bit more efficient. 1eb47f167d65d1d305b9c196a1bb40eb96117cb1 already converted six cases, this patch covers three more. A semantic patch for Coccinelle is included for easier checking for new cases that might be introduced in the future. Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-09-27use strbuf_addstr() instead of strbuf_addf() with "%s", part 2Libravatar René Scharfe1-0/+6
Replace uses of strbuf_addf() for adding strings with more lightweight strbuf_addstr() calls. This is shorter and makes the intent clearer. bc57b9c0cc5a123365a922fa1831177e3fd607ed already converted three cases, this patch covers two more. A semantic patch for Coccinelle is included for easier checking for new cases that might be introduced in the future. Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-09-27gitignore: ignore output files of coccicheck make targetLibravatar René Scharfe1-0/+1
Helped-by: Jakub Narębski <jnareb@gmail.com> Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-09-25use COPY_ARRAYLibravatar René Scharfe1-0/+26
Add a semantic patch for converting certain calls of memcpy(3) to COPY_ARRAY() and apply that transformation to the code base. The result is shorter and safer code. For now only consider calls where source and destination have the same type, or in other words: easy cases. Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-09-15use strbuf_addstr() for adding constant strings to a strbuf, part 2Libravatar René Scharfe1-0/+5
Replace uses of strbuf_addf() for adding strings with more lightweight strbuf_addstr() calls. This makes the intent clearer and avoids potential issues with printf format specifiers. 02962d36845b89145cd69f8bc65e015d78ae3434 already converted six cases, this patch covers eleven more. A semantic patch for Coccinelle is included for easier checking for new cases that might be introduced in the future. Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-09-15contrib/coccinelle: fix semantic patch for oid_to_hex_r()Libravatar René Scharfe1-6/+6
Both sha1_to_hex_r() and oid_to_hex_r() take two parameters, so use two expressions in the semantic patch for transforming calls of the former to the latter one. Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-06-28contrib/coccinelle: add basic Coccinelle transformsLibravatar brian m. carlson2-0/+97
Coccinelle (http://coccinelle.lip6.fr/) is a program which performs mechanical transformations on C programs using semantic patches. These semantic patches can be used to implement automatic refactoring and maintenance tasks. Add a set of basic semantic patches to convert common patterns related to the struct object_id transformation, as well as a README. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>