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.

importd: drop dkr support The current code is not compatible with current dkr protocols anyway, and dkr has a different focus ("microservices") than nspawn anyway ("whole machine containers"), hence drop support for it, we cannot reasonably keep this up to date, and it creates the impression we'd actually care for the microservices usecase.

tree-wide: expose "p"-suffix unref calls in public APIs to make gcc cleanup easy GLIB has recently started to officially support the gcc cleanup attribute in its public API, hence let's do the same for our APIs. With this patch we'll define an xyz_unrefp() call for each public xyz_unref() call, to make it easy to use inside a __attribute__((cleanup())) expression. Then, all code is ported over to make use of this. The new calls are also documented in the man pages, with examples how to use them (well, I only added docs where the _unref() call itself already had docs, and the examples, only cover sd_bus_unrefp() and sd_event_unrefp()). This also renames sd_lldp_free() to sd_lldp_unref(), since that's how we tend to call our destructors these days. Note that this defines no public macro that wraps gcc's attribute and makes it easier to use. While I think it's our duty in the library to make our stuff easy to use, I figure it's not our duty to make gcc's own features easy to use on its own. Most likely, client code which wants to make use of this should define its own: #define _cleanup_(function) __attribute__((cleanup(function))) Or similar, to make the gcc feature easier to use. Making this logic public has the benefit that we can remove three header files whose only purpose was to define these functions internally. See #2008.

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

util-lib: move web-related calls into web-util.[ch]

util-lib: split string parsing related calls from util.[ch] into parse-util.[ch]

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.

util: introduce common version() implementation and use it everywhere This also allows us to drop build.h from a ton of files, hence do so. Since we touched the #includes of those files, let's order them properly according to CODING_STYLE.

importd: for .raw and .tar images, try to download .nspawn settings file too

util: make machine_name_is_valid() a macro and move it to hostname-util.h As it turns out machine_name_is_valid() does the exact same thing as hostname_is_valid() these days, as it just invoked that and checked the name length was < 64. However, hostname_is_valid() checks the length against HOST_NAME_MAX anyway (which is 64 on Linux), hence any additional check is redundant. We hence replace machine_name_is_valid() by a macro that simply maps it to hostname_is_valid() but sets the allow_trailing_dot parameter to false. We also move this this call to hostname-util.h, to the same place as the hostname_is_valid() declaration.

import/pull: fix pulling by image digest When pulling by image digest the identifiers that were produced by parsing image digest were later overwritten by code parsing image tag. This resulted in invalid identifiers being used when contacting the remote endpoint, resulting in 404. Reported here: http://lists.freedesktop.org/archives/systemd-devel/2015-June/033039.html

everywhere: port everything to sigprocmask_many() and friends This ports a lot of manual code over to sigprocmask_many() and friends. Also, we now consistly check for sigprocmask() failures with assert_se(), since the call cannot realistically fail unless there's a programming error. Also encloses a few sd_event_add_signal() calls with (void) when we ignore the return values for it knowingly.

tree-wide: whenever we fork off a foreign child process reset signal mask/handlers Also, when the child is potentially long-running make sure to set a death signal. Also, ignore the result of the reset operations explicitly by casting them to (void).

util: split out signal-util.[ch] from util.[ch] No functional changes.

import/pull: Tag replaced with reference Default pull version set to V2

importd: add API for exporting container/VM images Also, expose it in machinectl.

importd: add new bus calls for importing local tar and raw images This also adds "machinectl import-raw" and "machinectl import-tar" to wrap these new bus calls. THe commands basically do for local files that "machinectl pull-raw" and friends do for remote files.

pull: improve --help text

import: rename download code from "import" to "pull" That way we can call the code for local container/VM imports "import" without confusion.

import: now that the worker binary is called "systemd-pull" we can shorten the verbs Atfer all "systemd-pull pull-tar" is unnecessarily redundant, over "systemd-pull tar"...

importd: try to minimize confusion by renaming "systemd-import" binary to "systemd-pull" This way "systemd-importd" is the daemon that uses "systemd-pull" as backend worker.