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Move code interpreting path relative to exec-dir to new function system_path()

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Expanding system paths relative to git_exec_path can be used for
creating an installation that can be moved to a different directory
without re-compiling.  We use this approach for template_dir and the
system wide gitconfig.  The Windows installer (msysgit) is an example
for such a setup.

This commit moves common code to a new function system_path().  System
paths that are to be interpreted relative to git_exec_path are passed to
system_path() and the return value is used instead of the original path.
system_path() prefixes a relative path with git_exec_path and leaves
absolute paths unmodified.  For example, we now write

    template_dir = system_path(DEFAULT_GIT_TEMPLATE_DIR);

[j6t: moved from path.c to exec_cmd.c]

Signed-off-by: Steffen Prohaska <prohaska@zib.de>
Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Steffen Prohaska 2008-07-13 22:31:18 +02:00 committed by Junio C Hamano
parent a9a3e82e6d
commit 2de9de5e4a
4 changed files with 15 additions and 22 deletions
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14
builtin-init-db.c
View File

@ -115,18 +115,8 @@ static void copy_templates(const char *template_dir)
if (!template_dir)
template_dir = getenv(TEMPLATE_DIR_ENVIRONMENT);
if (!template_dir) {
/*
* if the hard-coded template is relative, it is
* interpreted relative to the exec_dir
*/
template_dir = DEFAULT_GIT_TEMPLATE_DIR;
if (!is_absolute_path(template_dir)) {
struct strbuf d = STRBUF_INIT;
strbuf_addf(&d, "%s/%s", git_exec_path(), template_dir);
template_dir = strbuf_detach(&d, NULL);
}
}
if (!template_dir)
template_dir = system_path(DEFAULT_GIT_TEMPLATE_DIR);
strcpy(template_path, template_dir);
template_len = strlen(template_path);
if (template_path[template_len-1] != '/') {

11
config.c
View File

@ -581,15 +581,8 @@ int git_config_from_file(config_fn_t fn, const char *filename, void *data)
const char *git_etc_gitconfig(void)
{
static const char *system_wide;
if (!system_wide) {
system_wide = ETC_GITCONFIG;
if (!is_absolute_path(system_wide)) {
/* interpret path relative to exec-dir */
struct strbuf d = STRBUF_INIT;
strbuf_addf(&d, "%s/%s", git_exec_path(), system_wide);
system_wide = strbuf_detach(&d, NULL);
}
}
if (!system_wide)
system_wide = system_path(ETC_GITCONFIG);
return system_wide;
}

10
exec_cmd.c
View File

@ -40,6 +40,16 @@ static const char *builtin_exec_path(void)
#endif
}
const char *system_path(const char *path)
{
if (!is_absolute_path(path)) {
struct strbuf d = STRBUF_INIT;
strbuf_addf(&d, "%s/%s", git_exec_path(), path);
path = strbuf_detach(&d, NULL);
}
return path;
}
void git_set_argv_exec_path(const char *exec_path)
{
argv_exec_path = exec_path;

2
exec_cmd.h
View File

@ -6,6 +6,6 @@ extern const char* git_exec_path(void);
extern void setup_path(const char *);
extern int execv_git_cmd(const char **argv); /* NULL terminated */
extern int execl_git_cmd(const char *cmd, ...);
extern const char *system_path(const char *path);
#endif /* GIT_EXEC_CMD_H */