84 lines
2.1 KiB
C
84 lines
2.1 KiB
C
#define USE_THE_REPOSITORY_VARIABLE
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#include "git-compat-util.h"
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#include "common-init.h"
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#include "exec-cmd.h"
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#include "gettext.h"
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#include "attr.h"
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#include "odb.h"
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#include "parse.h"
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#include "repository.h"
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#include "replace-object.h"
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#include "setup.h"
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#include "strbuf.h"
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#include "trace2.h"
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/*
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* Many parts of Git have subprograms communicate via pipe, expect the
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* upstream of a pipe to die with SIGPIPE when the downstream of a
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* pipe does not need to read all that is written. Some third-party
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* programs that ignore or block SIGPIPE for their own reason forget
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* to restore SIGPIPE handling to the default before spawning Git and
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* break this carefully orchestrated machinery.
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*
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* Restore the way SIGPIPE is handled to default, which is what we
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* expect.
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*/
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static void restore_sigpipe_to_default(void)
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{
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sigset_t unblock;
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sigemptyset(&unblock);
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sigaddset(&unblock, SIGPIPE);
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sigprocmask(SIG_UNBLOCK, &unblock, NULL);
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signal(SIGPIPE, SIG_DFL);
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}
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static void setup_environment(void)
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{
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char *git_replace_ref_base;
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const char *replace_ref_base;
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if (getenv(NO_REPLACE_OBJECTS_ENVIRONMENT))
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disable_replace_refs();
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replace_ref_base = getenv(GIT_REPLACE_REF_BASE_ENVIRONMENT);
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git_replace_ref_base = xstrdup(replace_ref_base ? replace_ref_base
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: "refs/replace/");
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update_ref_namespace(NAMESPACE_REPLACE, git_replace_ref_base);
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if (git_env_bool(NO_LAZY_FETCH_ENVIRONMENT, 0))
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fetch_if_missing = 0;
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}
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void init_git(const char **argv)
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{
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struct strbuf tmp = STRBUF_INIT;
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trace2_initialize_clock();
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/*
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* Always open file descriptors 0/1/2 to avoid clobbering files
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* in die(). It also avoids messing up when the pipes are dup'ed
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* onto stdin/stdout/stderr in the child processes we spawn.
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*/
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sanitize_stdfds();
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restore_sigpipe_to_default();
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git_resolve_executable_dir(argv[0]);
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setlocale(LC_CTYPE, "");
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git_setup_gettext();
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initialize_repository(the_repository);
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setup_environment();
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attr_start();
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trace2_initialize();
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trace2_cmd_start(argv);
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trace2_collect_process_info(TRACE2_PROCESS_INFO_STARTUP);
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if (!strbuf_getcwd(&tmp))
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tmp_original_cwd = strbuf_detach(&tmp, NULL);
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}
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