tree-wide: remove Emacs lines from all files This should be handled fine now by .dir-locals.el, so need to carry that stuff in every file.

basic: re-sort includes My previous patch to only include what we use accidentially placed the added inlcudes in non-sorted order.

basic: include only what we use This is a cleaned up result of running iwyu but without forward declarations on src/basic.

calendarspec: sub-second support, v3

tree-wide: sort includes Sort the includes accoding to the new coding style.

time-util: add parse_time(), which is like parse_sec() but allows specification of default time unit if none is specified This is useful if we want to parse RLIMIT_RTTIME values where the common UNIX syntax is without any units but refers to a non-second unit (µs in this case), but where we want to allow specification of units.

util-lib: split out allocation calls into alloc-util.[ch]

util-lib: move more file I/O related calls into fileio.[ch]

basic: use the return value of endswith It returns the position where the suffix begins, which can be used for strndup to extract the prefix without calling strlen.

util-lib: split our string related calls from util.[ch] into its own file string-util.[ch] There are more than enough calls doing string manipulations to deserve its own files, hence do something about it. This patch also sorts the #include blocks of all files that needed to be updated, according to the sorting suggestions from CODING_STYLE. Since pretty much every file needs our string manipulation functions this effectively means that most files have sorted #include blocks now. Also touches a few unrelated include files.

basic: calendarspec UTC support Just add " UTC" to the end of the event expression. Works for the special expressions.

tree-wide: port everything over to fflush_and_check() Some places invoked fflush() directly with their own manual error checking, let's unify all that by using fflush_and_check(). This also unifies the general error paths of fflush()+rename() file writers.

build-sys: split internal basic/ library from shared/ basic/ can be used by everything cannot use anything outside of basic/ libsystemd/ can use basic/ cannot use shared/ shared/ can use libsystemd/