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2022-01-07hooks: convert worktree 'post-checkout' hook to hook libraryLibravatar Emily Shaffer1-0/+8
Move the running of the 'post-checkout' hook away from run-command.h to the new hook.h library in builtin/worktree.c. For this special case we need a change to the hook API to teach it to run the hook from a given directory. We cannot skip the "absolute_path" flag and just check if "dir" is specified as we'd then fail to find our hook in the new dir we'd chdir() to. We currently don't have a use-case for running a hook not in our "base" repository at a given absolute path, so let's have "dir" imply absolute_path(find_hook(hook_name)). Signed-off-by: Emily Shaffer <emilyshaffer@google.com> Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Acked-by: Emily Shaffer <emilyshaffer@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-01-07hook API: add a run_hooks_l() wrapperLibravatar Ævar Arnfjörð Bjarmason1-0/+14
Add a run_hooks_l() wrapper, we'll use it in subsequent commits for the simple cases of wanting to run a single hook under a given name along with a list of arguments. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Reviewed-by: Emily Shaffer <emilyshaffer@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-01-07hook API: add a run_hooks() wrapperLibravatar Ævar Arnfjörð Bjarmason1-0/+7
Add a run_hooks() wrapper, we'll use it in subsequent commits for the simple cases of wanting to run a single hook under a given name, without providing options such as "env" or "args". Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Reviewed-by: Emily Shaffer <emilyshaffer@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-01-07hook: add 'run' subcommandLibravatar Emily Shaffer1-0/+102
In order to enable hooks to be run as an external process, by a standalone Git command, or by tools which wrap Git, provide an external means to run all configured hook commands for a given hook event. Most of our hooks require more complex functionality than this, but let's start with the bare minimum required to support our simplest hooks. In terms of implementation the usage_with_options() and "goto usage" pattern here mirrors that of builtin/{commit-graph,multi-pack-index}.c. Some of the implementation here, such as a function being named run_hooks_opt() when it's tasked with running one hook, to using the run_processes_parallel_tr2() API to run with jobs=1 is somewhere between a bit odd and and an overkill for the current features of this "hook run" command and the hook.[ch] API. This code will eventually be able to run multiple hooks declared in config in parallel, by starting out with these names and APIs we reduce the later churn of renaming functions, switching from the run_command() to run_processes_parallel_tr2() API etc. Signed-off-by: Emily Shaffer <emilyshaffer@google.com> Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Acked-by: Emily Shaffer <emilyshaffer@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-27hook.c: add a hook_exists() wrapper and use it in bugreport.cLibravatar Emily Shaffer1-0/+5
Add a boolean version of the find_hook() function for those callers who are only interested in checking whether the hook exists, not what the path to it is. Signed-off-by: Emily Shaffer <emilyshaffer@google.com> Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-27hook.[ch]: move find_hook() from run-command.c to hook.cLibravatar Ævar Arnfjörð Bjarmason1-0/+37
Move the find_hook() function from run-command.c to a new hook.c library. This change establishes a stub library that's pretty pointless right now, but will see much wider use with Emily Shaffer's upcoming "configuration-based hooks" series. Eventually all the hook related code will live in hook.[ch]. Let's start that process by moving the simple find_hook() function over as-is. Signed-off-by: Emily Shaffer <emilyshaffer@google.com> Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>