mirror of
https://github.com/git/git.git
synced 2024-11-06 09:13:01 +01:00
8c82534d89
If the compiler has asked us to disable use of mmap() on their platform then we are forced to use git_mmap and its emulation via pread. In this case large (e.g. 32 MiB) windows for pack access are simply too big as a command will wind up reading a lot more data than it will ever need, significantly reducing response time. To prevent a high latency when NO_MMAP has been selected we now use a default of 1 MiB for core.packedGitWindowSize. Credit goes to Linus and Junio for recommending this more reasonable setting. [jc: upcased the name of the symbolic constant, and made another hardcoded constant into a symbolic constant while at it. ] Signed-off-by: Shawn O. Pearce <spearce@spearce.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
101 lines
2.4 KiB
C
101 lines
2.4 KiB
C
/*
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* We put all the git config variables in this same object
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* file, so that programs can link against the config parser
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* without having to link against all the rest of git.
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*
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* In particular, no need to bring in libz etc unless needed,
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* even if you might want to know where the git directory etc
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* are.
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*/
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#include "cache.h"
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char git_default_email[MAX_GITNAME];
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char git_default_name[MAX_GITNAME];
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int use_legacy_headers = 1;
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int trust_executable_bit = 1;
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int assume_unchanged;
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int prefer_symlink_refs;
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int log_all_ref_updates;
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int warn_ambiguous_refs = 1;
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int repository_format_version;
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char *git_commit_encoding;
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char *git_log_output_encoding;
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int shared_repository = PERM_UMASK;
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const char *apply_default_whitespace;
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int zlib_compression_level = Z_DEFAULT_COMPRESSION;
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size_t packed_git_window_size = DEFAULT_PACKED_GIT_WINDOW_SIZE;
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size_t packed_git_limit = DEFAULT_PACKED_GIT_LIMIT;
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int pager_in_use;
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int pager_use_color = 1;
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static const char *git_dir;
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static char *git_object_dir, *git_index_file, *git_refs_dir, *git_graft_file;
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static void setup_git_env(void)
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{
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git_dir = getenv(GIT_DIR_ENVIRONMENT);
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if (!git_dir)
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git_dir = DEFAULT_GIT_DIR_ENVIRONMENT;
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git_object_dir = getenv(DB_ENVIRONMENT);
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if (!git_object_dir) {
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git_object_dir = xmalloc(strlen(git_dir) + 9);
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sprintf(git_object_dir, "%s/objects", git_dir);
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}
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git_refs_dir = xmalloc(strlen(git_dir) + 6);
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sprintf(git_refs_dir, "%s/refs", git_dir);
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git_index_file = getenv(INDEX_ENVIRONMENT);
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if (!git_index_file) {
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git_index_file = xmalloc(strlen(git_dir) + 7);
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sprintf(git_index_file, "%s/index", git_dir);
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}
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git_graft_file = getenv(GRAFT_ENVIRONMENT);
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if (!git_graft_file)
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git_graft_file = xstrdup(git_path("info/grafts"));
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log_all_ref_updates = !is_bare_git_dir(git_dir);
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}
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int is_bare_git_dir (const char *dir)
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{
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const char *s;
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if (!strcmp(dir, DEFAULT_GIT_DIR_ENVIRONMENT))
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return 0;
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s = strrchr(dir, '/');
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return !s || strcmp(s + 1, DEFAULT_GIT_DIR_ENVIRONMENT);
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}
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const char *get_git_dir(void)
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{
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if (!git_dir)
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setup_git_env();
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return git_dir;
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}
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char *get_object_directory(void)
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{
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if (!git_object_dir)
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setup_git_env();
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return git_object_dir;
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}
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char *get_refs_directory(void)
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{
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if (!git_refs_dir)
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setup_git_env();
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return git_refs_dir;
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}
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char *get_index_file(void)
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{
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if (!git_index_file)
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setup_git_env();
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return git_index_file;
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}
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char *get_graft_file(void)
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{
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if (!git_graft_file)
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setup_git_env();
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return git_graft_file;
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}
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