git/connect.c, branch v2.2.0

Merge branch 'rs/more-uses-of-skip-prefix'

2014-09-19T18:38:35Z

Code clean-up. * rs/more-uses-of-skip-prefix: pack-write: simplify index_pack_lockfile using skip_prefix() and xstrfmt() connect: simplify check_ref() using skip_prefix() and starts_with()

connect: simplify check_ref() using skip_prefix() and starts_with()

2014-09-02T17:36:42Z

Both callers of check_ref() pass in NUL-terminated strings for name. Remove the len parameter and then use skip_prefix() and starts_with() instead of memcmp() to check if it starts with certain strings. This gets rid of several magic string length constants and a strlen() call. Signed-off-by: Rene Scharfe Signed-off-by: Junio C Hamano

run-command: introduce child_process_init()

2014-08-20T16:54:58Z

Add a helper function for initializing those struct child_process variables for which the macro CHILD_PROCESS_INIT can't be used. Suggested-by: Jeff King Signed-off-by: Rene Scharfe Signed-off-by: Junio C Hamano

run-command: introduce CHILD_PROCESS_INIT

2014-08-20T16:53:37Z

Most struct child_process variables are cleared using memset first after declaration. Provide a macro, CHILD_PROCESS_INIT, that can be used to initialize them statically instead. That's shorter, doesn't require a function call and is slightly more readable (especially given that we already have STRBUF_INIT, ARGV_ARRAY_INIT etc.). Helped-by: Johannes Sixt Signed-off-by: Rene Scharfe Signed-off-by: Junio C Hamano

Merge branch 'maint'

2014-07-21T19:35:39Z

* maint: use xmemdupz() to allocate copies of strings given by start and length use xcalloc() to allocate zero-initialized memory

use xmemdupz() to allocate copies of strings given by start and length

2014-07-21T17:37:02Z

Use xmemdupz() to allocate the memory, copy the data and make sure to NUL-terminate the result, all in one step. The resulting code is shorter, doesn't contain the constants 1 and '\0', and avoids duplicating function parameters. For blame, the last copied byte (o->file.ptr[o->file.size]) is always set to NUL by fake_working_tree_commit() or read_sha1_file(), so no information is lost by the conversion to using xmemdupz(). Signed-off-by: Rene Scharfe Signed-off-by: Junio C Hamano

use skip_prefix to avoid magic numbers

2014-06-20T17:44:45Z

It's a common idiom to match a prefix and then skip past it with a magic number, like: if (starts_with(foo, "bar")) foo += 3; This is easy to get wrong, since you have to count the prefix string yourself, and there's no compiler check if the string changes. We can use skip_prefix to avoid the magic numbers here. Note that some of these conversions could be much shorter. For example: if (starts_with(arg, "--foo=")) { bar = arg + 6; continue; } could become: if (skip_prefix(arg, "--foo=", &bar)) continue; However, I have left it as: if (skip_prefix(arg, "--foo=", &v)) { bar = v; continue; } to visually match nearby cases which need to actually process the string. Like: if (skip_prefix(arg, "--foo=", &v)) { bar = atoi(v); continue; } Signed-off-by: Jeff King Signed-off-by: Junio C Hamano

git_connect: use argv_array

2014-05-15T16:49:10Z

This avoids magic numbers when we allocate fixed-size argv arrays, and makes it more obvious that we are not overflowing. It is also the first step to fixing a memory leak. When git_connect returns a child_process struct, the argv array in the struct is dynamically allocated, but the individual strings are not (they are either owned elsewhere, or are freed). Later, in finish_connect, we free the array but leave the strings alone. This works for the child_process created by git_connect, but if we use transport_take_over, we may also end up with a child_process created by transport-helper's get_helper. In that case, the strings are freshly allocated, and we would want to free them. However, we have no idea in finish_connect which type we have. By consistently using run-command's internal argv-array, we do not have to worry about this issue at all; finish_command takes care of it for us, and we can drop our manual free entirely. Note that this actually makes the get_helper leak slightly worse; now we are leaking both the strings and the array. But when we adjust it in a future patch, that leak will go away entirely. Signed-off-by: Jeff King Signed-off-by: Junio C Hamano

Merge branch 'nd/indent-fix-connect-c'

2014-03-25T18:07:06Z

* nd/indent-fix-connect-c: connect.c: SP after "}", not TAB

connect.c: SP after "}", not TAB

2014-03-13T17:54:21Z

Signed-off-by: Nguyễn Thái Ngọc Duy Signed-off-by: Junio C Hamano