From a52beae3a319e8133be0fe245e5fb3b9e7d8d9fb Mon Sep 17 00:00:00 2001 From: Patrick Steinhardt Date: Thu, 12 Sep 2024 13:29:54 +0200 Subject: [PATCH] environment: move `set_git_dir()` and related into setup layer The functions `set_git_dir()` and friends are used to set up repositories. As such, they are quite clearly part of the setup subsystem, but still live in "environment.c". Move them over, which also helps to get rid of dependencies on `the_repository` in the environment subsystem. Signed-off-by: Patrick Steinhardt Signed-off-by: Junio C Hamano --- environment.c | 105 ------------------------------------------------- environment.h | 2 - setup.c | 106 ++++++++++++++++++++++++++++++++++++++++++++++++++ setup.h | 3 ++ 4 files changed, 109 insertions(+), 107 deletions(-) diff --git a/environment.c b/environment.c index 4984441841..64ae13ef24 100644 --- a/environment.c +++ b/environment.c @@ -22,14 +22,9 @@ #include "fmt-merge-msg.h" #include "commit.h" #include "strvec.h" -#include "object-file.h" #include "path.h" -#include "replace-object.h" -#include "tmp-objdir.h" #include "chdir-notify.h" #include "setup.h" -#include "shallow.h" -#include "trace.h" #include "write-or-die.h" int trust_executable_bit = 1; @@ -155,41 +150,6 @@ const char *getenv_safe(struct strvec *argv, const char *name) return argv->v[argv->nr - 1]; } -void setup_git_env(const char *git_dir) -{ - char *git_replace_ref_base; - const char *shallow_file; - const char *replace_ref_base; - struct set_gitdir_args args = { NULL }; - struct strvec to_free = STRVEC_INIT; - - args.commondir = getenv_safe(&to_free, GIT_COMMON_DIR_ENVIRONMENT); - args.object_dir = getenv_safe(&to_free, DB_ENVIRONMENT); - args.graft_file = getenv_safe(&to_free, GRAFT_ENVIRONMENT); - args.index_file = getenv_safe(&to_free, INDEX_ENVIRONMENT); - args.alternate_db = getenv_safe(&to_free, ALTERNATE_DB_ENVIRONMENT); - if (getenv(GIT_QUARANTINE_ENVIRONMENT)) { - args.disable_ref_updates = 1; - } - - repo_set_gitdir(the_repository, git_dir, &args); - strvec_clear(&to_free); - - if (getenv(NO_REPLACE_OBJECTS_ENVIRONMENT)) - disable_replace_refs(); - replace_ref_base = getenv(GIT_REPLACE_REF_BASE_ENVIRONMENT); - git_replace_ref_base = xstrdup(replace_ref_base ? replace_ref_base - : "refs/replace/"); - update_ref_namespace(NAMESPACE_REPLACE, git_replace_ref_base); - - shallow_file = getenv(GIT_SHALLOW_FILE_ENVIRONMENT); - if (shallow_file) - set_alternate_shallow_file(the_repository, shallow_file, 0); - - if (git_env_bool(NO_LAZY_FETCH_ENVIRONMENT, 0)) - fetch_if_missing = 0; -} - int is_bare_repository(void) { /* if core.bare is not 'false', let's see if there is a work tree */ @@ -243,71 +203,6 @@ const char *strip_namespace(const char *namespaced_ref) return NULL; } -static int git_work_tree_initialized; - -/* - * Note. This works only before you used a work tree. This was added - * primarily to support git-clone to work in a new repository it just - * created, and is not meant to flip between different work trees. - */ -void set_git_work_tree(const char *new_work_tree) -{ - if (git_work_tree_initialized) { - struct strbuf realpath = STRBUF_INIT; - - strbuf_realpath(&realpath, new_work_tree, 1); - new_work_tree = realpath.buf; - if (strcmp(new_work_tree, the_repository->worktree)) - die("internal error: work tree has already been set\n" - "Current worktree: %s\nNew worktree: %s", - the_repository->worktree, new_work_tree); - strbuf_release(&realpath); - return; - } - git_work_tree_initialized = 1; - repo_set_worktree(the_repository, new_work_tree); -} - -static void set_git_dir_1(const char *path) -{ - xsetenv(GIT_DIR_ENVIRONMENT, path, 1); - setup_git_env(path); -} - -static void update_relative_gitdir(const char *name UNUSED, - const char *old_cwd, - const char *new_cwd, - void *data UNUSED) -{ - char *path = reparent_relative_path(old_cwd, new_cwd, - repo_get_git_dir(the_repository)); - struct tmp_objdir *tmp_objdir = tmp_objdir_unapply_primary_odb(); - - trace_printf_key(&trace_setup_key, - "setup: move $GIT_DIR to '%s'", - path); - set_git_dir_1(path); - if (tmp_objdir) - tmp_objdir_reapply_primary_odb(tmp_objdir, old_cwd, new_cwd); - free(path); -} - -void set_git_dir(const char *path, int make_realpath) -{ - struct strbuf realpath = STRBUF_INIT; - - if (make_realpath) { - strbuf_realpath(&realpath, path, 1); - path = realpath.buf; - } - - set_git_dir_1(path); - if (!is_absolute_path(path)) - chdir_notify_register(NULL, update_relative_gitdir, NULL); - - strbuf_release(&realpath); -} - const char *get_log_output_encoding(void) { return git_log_output_encoding ? git_log_output_encoding diff --git a/environment.h b/environment.h index 682d4f2e3b..b846039679 100644 --- a/environment.h +++ b/environment.h @@ -105,10 +105,8 @@ int have_git_dir(void); extern int is_bare_repository_cfg; int is_bare_repository(void); extern char *git_work_tree_cfg; -void set_git_dir(const char *path, int make_realpath); const char *get_git_namespace(void); const char *strip_namespace(const char *namespaced_ref); -void set_git_work_tree(const char *tree); #define ALTERNATE_DB_ENVIRONMENT "GIT_ALTERNATE_OBJECT_DIRECTORIES" diff --git a/setup.c b/setup.c index 1bfec288ab..19cce5afa7 100644 --- a/setup.c +++ b/setup.c @@ -7,16 +7,22 @@ #include "exec-cmd.h" #include "gettext.h" #include "hex.h" +#include "object-file.h" #include "object-name.h" #include "refs.h" +#include "replace-object.h" #include "repository.h" #include "config.h" #include "dir.h" #include "setup.h" +#include "shallow.h" #include "string-list.h" +#include "strvec.h" #include "chdir-notify.h" #include "path.h" #include "quote.h" +#include "tmp-objdir.h" +#include "trace.h" #include "trace2.h" #include "worktree.h" #include "exec-cmd.h" @@ -1613,6 +1619,106 @@ enum discovery_result discover_git_directory_reason(struct strbuf *commondir, return result; } +void setup_git_env(const char *git_dir) +{ + char *git_replace_ref_base; + const char *shallow_file; + const char *replace_ref_base; + struct set_gitdir_args args = { NULL }; + struct strvec to_free = STRVEC_INIT; + + args.commondir = getenv_safe(&to_free, GIT_COMMON_DIR_ENVIRONMENT); + args.object_dir = getenv_safe(&to_free, DB_ENVIRONMENT); + args.graft_file = getenv_safe(&to_free, GRAFT_ENVIRONMENT); + args.index_file = getenv_safe(&to_free, INDEX_ENVIRONMENT); + args.alternate_db = getenv_safe(&to_free, ALTERNATE_DB_ENVIRONMENT); + if (getenv(GIT_QUARANTINE_ENVIRONMENT)) { + args.disable_ref_updates = 1; + } + + repo_set_gitdir(the_repository, git_dir, &args); + strvec_clear(&to_free); + + if (getenv(NO_REPLACE_OBJECTS_ENVIRONMENT)) + disable_replace_refs(); + replace_ref_base = getenv(GIT_REPLACE_REF_BASE_ENVIRONMENT); + git_replace_ref_base = xstrdup(replace_ref_base ? replace_ref_base + : "refs/replace/"); + update_ref_namespace(NAMESPACE_REPLACE, git_replace_ref_base); + + shallow_file = getenv(GIT_SHALLOW_FILE_ENVIRONMENT); + if (shallow_file) + set_alternate_shallow_file(the_repository, shallow_file, 0); + + if (git_env_bool(NO_LAZY_FETCH_ENVIRONMENT, 0)) + fetch_if_missing = 0; +} + +static void set_git_dir_1(const char *path) +{ + xsetenv(GIT_DIR_ENVIRONMENT, path, 1); + setup_git_env(path); +} + +static void update_relative_gitdir(const char *name UNUSED, + const char *old_cwd, + const char *new_cwd, + void *data UNUSED) +{ + char *path = reparent_relative_path(old_cwd, new_cwd, + repo_get_git_dir(the_repository)); + struct tmp_objdir *tmp_objdir = tmp_objdir_unapply_primary_odb(); + + trace_printf_key(&trace_setup_key, + "setup: move $GIT_DIR to '%s'", + path); + set_git_dir_1(path); + if (tmp_objdir) + tmp_objdir_reapply_primary_odb(tmp_objdir, old_cwd, new_cwd); + free(path); +} + +void set_git_dir(const char *path, int make_realpath) +{ + struct strbuf realpath = STRBUF_INIT; + + if (make_realpath) { + strbuf_realpath(&realpath, path, 1); + path = realpath.buf; + } + + set_git_dir_1(path); + if (!is_absolute_path(path)) + chdir_notify_register(NULL, update_relative_gitdir, NULL); + + strbuf_release(&realpath); +} + +static int git_work_tree_initialized; + +/* + * Note. This works only before you used a work tree. This was added + * primarily to support git-clone to work in a new repository it just + * created, and is not meant to flip between different work trees. + */ +void set_git_work_tree(const char *new_work_tree) +{ + if (git_work_tree_initialized) { + struct strbuf realpath = STRBUF_INIT; + + strbuf_realpath(&realpath, new_work_tree, 1); + new_work_tree = realpath.buf; + if (strcmp(new_work_tree, the_repository->worktree)) + die("internal error: work tree has already been set\n" + "Current worktree: %s\nNew worktree: %s", + the_repository->worktree, new_work_tree); + strbuf_release(&realpath); + return; + } + git_work_tree_initialized = 1; + repo_set_worktree(the_repository, new_work_tree); +} + const char *setup_git_directory_gently(int *nongit_ok) { static struct strbuf cwd = STRBUF_INIT; diff --git a/setup.h b/setup.h index fd2df7cd52..e496ab3e4d 100644 --- a/setup.h +++ b/setup.h @@ -94,6 +94,9 @@ static inline int discover_git_directory(struct strbuf *commondir, return 0; } +void set_git_dir(const char *path, int make_realpath); +void set_git_work_tree(const char *tree); + const char *setup_git_directory_gently(int *); const char *setup_git_directory(void); char *prefix_path(const char *prefix, int len, const char *path);