setup: move prefix into repository

The repository prefix is currently stored in the startup info. This feels somewhat awkward though, as it is inherently a property of a given repository. Move the prefix into the repository accordingly. Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>

Patrick Steinhardt committed Jul 7, 2026 at 09:21 UTC b964ad1f019d66604d7577e2db49481461bcab5a
9 files changed +25 -16
builtin/repo.c
+4 -4
@@ -84,7 +84,7 @@ static int get_path_commondir_absolute(struct repository *repo, struct strbuf *b
84 if (!common_dir)
85 return error(_("unable to get common directory"));
86
87 - format_path(buf, common_dir, startup_info->prefix, PATH_FORMAT_CANONICAL);
87 + format_path(buf, common_dir, repo->prefix, PATH_FORMAT_CANONICAL);
88 return 0;
89 }
90
@@ -95,7 +95,7 @@ static int get_path_commondir_relative(struct repository *repo, struct strbuf *b
95 if (!common_dir)
96 return error(_("unable to get common directory"));
97
98 - format_path(buf, common_dir, startup_info->prefix, PATH_FORMAT_RELATIVE);
98 + format_path(buf, common_dir, repo->prefix, PATH_FORMAT_RELATIVE);
99 return 0;
100 }
101
@@ -106,7 +106,7 @@ static int get_path_gitdir_absolute(struct repository *repo, struct strbuf *buf)
106 if (!git_dir)
107 return error(_("unable to get git directory"));
108
109 - format_path(buf, git_dir, startup_info->prefix, PATH_FORMAT_CANONICAL);
109 + format_path(buf, git_dir, repo->prefix, PATH_FORMAT_CANONICAL);
110 return 0;
111 }
112
@@ -117,7 +117,7 @@ static int get_path_gitdir_relative(struct repository *repo, struct strbuf *buf)
117 if (!git_dir)
118 return error(_("unable to get git directory"));
119
120 - format_path(buf, git_dir, startup_info->prefix, PATH_FORMAT_RELATIVE);
120 + format_path(buf, git_dir, repo->prefix, PATH_FORMAT_RELATIVE);
121 return 0;
122 }
123
builtin/rev-parse.c
+3 -2
@@ -255,7 +255,7 @@ static int show_file(const char *arg, int output_prefix)
255 show_default();
256 if ((filter & (DO_NONFLAGS|DO_NOREV)) == (DO_NONFLAGS|DO_NOREV)) {
257 if (output_prefix) {
258 - const char *prefix = startup_info->prefix;
258 + const char *prefix = the_repository->prefix;
259 char *fname = prefix_filename(prefix, arg);
260 show(fname);
261 free(fname);
@@ -832,7 +832,8 @@ int cmd_rev_parse(int argc,
832 prefix = argv[++i];
833 if (!prefix)
834 die(_("--prefix requires an argument"));
835 - startup_info->prefix = prefix;
835 + FREE_AND_NULL(the_repository->prefix);
836 + the_repository->prefix = xstrdup(prefix);
837 output_prefix = 1;
838 continue;
839 }
builtin/update-index.c
+2 -2
@@ -875,7 +875,7 @@ static enum parse_opt_result unresolve_callback(
875 const char *arg, int unset)
876 {
877 int *has_errors = opt->value;
878 - const char *prefix = startup_info->prefix;
878 + const char *prefix = the_repository->prefix;
879
880 BUG_ON_OPT_NEG(unset);
881 BUG_ON_OPT_ARG(arg);
@@ -896,7 +896,7 @@ static enum parse_opt_result reupdate_callback(
896 const char *arg, int unset)
897 {
898 int *has_errors = opt->value;
899 - const char *prefix = startup_info->prefix;
899 + const char *prefix = the_repository->prefix;
900
901 BUG_ON_OPT_NEG(unset);
902 BUG_ON_OPT_ARG(arg);
object-name.c
+2 -2
@@ -1708,8 +1708,8 @@ static char *resolve_relative_path(struct repository *r, const char *rel)
1708 die(_("relative path syntax can't be used outside working tree"));
1709
1710 /* die() inside prefix_path() if resolved path is outside worktree */
1711 - return prefix_path(the_repository, startup_info->prefix,
1712 - startup_info->prefix ? strlen(startup_info->prefix) : 0,
1711 + return prefix_path(the_repository, the_repository->prefix,
1712 + the_repository->prefix ? strlen(the_repository->prefix) : 0,
1713 rel);
1714 }
1715
repository.c
+1
@@ -376,6 +376,7 @@ void repo_clear(struct repository *repo)
376
377 FREE_AND_NULL(repo->gitdir);
378 FREE_AND_NULL(repo->commondir);
379 + FREE_AND_NULL(repo->prefix);
380 FREE_AND_NULL(repo->graft_file);
381 FREE_AND_NULL(repo->index_file);
382 FREE_AND_NULL(repo->worktree);
repository.h
+8
@@ -52,6 +52,14 @@ struct repository {
52 */
53 char *commondir;
54
55 + /*
56 + * The "prefix", a path to the current working directory relative to
57 + * the work tree root, or NULL, if the current working directory is not
58 + * a strict subdirectory of the work tree root. The prefix always ends
59 + * with a '/' character.
60 + */
61 + char *prefix;
62 +
63 /*
64 * Holds any information related to accessing the raw object content.
65 */
setup.c
+3 -3
@@ -2030,7 +2030,7 @@ const char *setup_git_directory_gently(struct repository *repo, int *nongit_ok)
2030 * repository and that the caller expects startup_info to reflect
2031 * this.
2032 *
2033 - * Regardless of the state of nongit_ok, startup_info->prefix and
2033 + * Regardless of the state of nongit_ok, the_repository->prefix and
2034 * the GIT_PREFIX environment variable must always match. For details
2035 * see Documentation/config/alias.adoc.
2036 */
@@ -2105,10 +2105,10 @@ const char *setup_git_directory_gently(struct repository *repo, int *nongit_ok)
2105 */
2106 if (prefix) {
2107 prefix = precompose_string_if_needed(prefix);
2108 - startup_info->prefix = prefix;
2108 + repo->prefix = xstrdup(prefix);
2109 setenv(GIT_PREFIX_ENVIRONMENT, prefix, 1);
2110 } else {
2111 - startup_info->prefix = NULL;
2111 + FREE_AND_NULL(repo->prefix);
2112 setenv(GIT_PREFIX_ENVIRONMENT, "", 1);
2113 }
2114
setup.h
-1
@@ -299,7 +299,6 @@ struct startup_info {
299 bool force_bare_repository;
300
301 int have_repository;
302 - const char *prefix;
302 const char *original_cwd;
303 };
304 extern struct startup_info *startup_info;
trace.c
+2 -2
@@ -299,7 +299,7 @@ static const char *quote_crnl(const char *path)
299
300 void trace_repo_setup(struct repository *r)
301 {
302 - const char *git_work_tree, *prefix = startup_info->prefix;
302 + const char *git_work_tree, *prefix = r->prefix;
303 char *cwd;
304
305 if (!trace_want(&trace_setup_key))
@@ -310,7 +310,7 @@ void trace_repo_setup(struct repository *r)
310 if (!(git_work_tree = repo_get_work_tree(r)))
311 git_work_tree = "(null)";
312
313 - if (!startup_info->prefix)
313 + if (!r->prefix)
314 prefix = "(null)";
315
316 trace_printf_key(&trace_setup_key, "setup: git_dir: %s\n", quote_crnl(repo_get_git_dir(r)));