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Commit Graph

Author	SHA1	Message	Date
René Scharfe	c2bb0c1d1e	cocci: avoid self-references in object_id transformations The object_id functions oid_to_hex, oid_to_hex_r, oidclr, oidcmp, and oidcpy are defined as wrappers of their legacy counterparts sha1_to_hex, sha1_to_hex_r, hashclr, hashcmp, and hashcpy, respectively. Make sure that the Coccinelle transformations for converting legacy function calls are not applied to these wrappers themselves, which would result in tautological declarations. Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>	8 years ago
Junio C Hamano	13092a916d	cocci: refactor common patterns to use xstrdup_or_null() `d64ea0f83b` ("git-compat-util: add xstrdup_or_null helper", 2015-01-12) added a handy wrapper that allows us to get a duplicate of a string or NULL if the original is NULL, but a handful of codepath predate its introduction or just weren't aware of it. Signed-off-by: Junio C Hamano <gitster@pobox.com>	9 years ago
René Scharfe	39ea59a257	remove unnecessary NULL check before free(3) free(3) handles NULL pointers just fine. Add a semantic patch for removing unnecessary NULL checks before calling this function, and apply it on the code base. Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>	9 years ago
René Scharfe	353d84c537	coccicheck: make transformation for strbuf_addf(sb, "...") more precise 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>	9 years ago
René Scharfe	76dd98c139	remove unnecessary check before QSORT 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>	9 years ago
René Scharfe	dbc540c7a5	add QSORT 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>	9 years ago
René Scharfe	f937d78553	use strbuf_add_unique_abbrev() for adding short hashes, part 2 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. `1eb47f167d` 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>	9 years ago
René Scharfe	92d52fab3a	use strbuf_addstr() instead of strbuf_addf() with "%s", part 2 Replace uses of strbuf_addf() for adding strings with more lightweight strbuf_addstr() calls. This is shorter and makes the intent clearer. `bc57b9c0cc` 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>	9 years ago
René Scharfe	7f2817daef	gitignore: ignore output files of coccicheck make target 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>	9 years ago
René Scharfe	45ccef87b3	use COPY_ARRAY 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>	9 years ago
René Scharfe	a22ae753cb	use strbuf_addstr() for adding constant strings to a strbuf, part 2 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. `02962d3684` 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>	9 years ago
René Scharfe	76d156766f	contrib/coccinelle: fix semantic patch for oid_to_hex_r() 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>	9 years ago
brian m. carlson	db1d80b8fa	contrib/coccinelle: add basic Coccinelle transforms 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>	9 years ago

21 Commits (fbd09439c097123346d9823b88c87438bf5a11ae)