mirror of
https://github.com/git/git
synced 2024-08-24 18:26:02 +00:00
966c6edd31
$(gitexecdir) (as defined in the Makefile) has gained another path component, but the relative paths in the MINGW section of the Makefile, which are interpreted relative to it, do not account for it. Instead of adding another ../ in front of the path, we change the code that constructs the absolute paths to do it relative to the command's directory, which is essentially $(bindir). We do it this way because we will also allow a relative $(gitexecdir) later. Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at> Signed-off-by: Junio C Hamano <gitster@pobox.com>
162 lines
2.9 KiB
C
162 lines
2.9 KiB
C
#include "cache.h"
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#include "exec_cmd.h"
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#include "quote.h"
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#define MAX_ARGS 32
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extern char **environ;
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static const char *argv_exec_path;
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static const char *argv0_path;
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static const char *builtin_exec_path(void)
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{
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#ifndef __MINGW32__
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return GIT_EXEC_PATH;
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#else
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int len;
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char *p, *q, *sl;
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static char *ep;
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if (ep)
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return ep;
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len = strlen(_pgmptr);
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if (len < 2)
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return ep = ".";
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p = ep = xmalloc(len+1);
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q = _pgmptr;
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sl = NULL;
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/* copy program name, turn '\\' into '/', skip last part */
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while ((*p = *q)) {
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if (*q == '\\' || *q == '/') {
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*p = '/';
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sl = p;
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}
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p++, q++;
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}
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if (sl)
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*sl = '\0';
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else
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ep[0] = '.', ep[1] = '\0';
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return ep;
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#endif
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}
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const char *system_path(const char *path)
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{
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if (!is_absolute_path(path) && argv0_path) {
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struct strbuf d = STRBUF_INIT;
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strbuf_addf(&d, "%s/%s", argv0_path, path);
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path = strbuf_detach(&d, NULL);
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}
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return path;
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}
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void git_set_argv0_path(const char *path)
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{
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argv0_path = path;
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}
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void git_set_argv_exec_path(const char *exec_path)
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{
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argv_exec_path = exec_path;
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}
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/* Returns the highest-priority, location to look for git programs. */
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const char *git_exec_path(void)
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{
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const char *env;
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if (argv_exec_path)
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return argv_exec_path;
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env = getenv(EXEC_PATH_ENVIRONMENT);
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if (env && *env) {
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return env;
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}
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return builtin_exec_path();
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}
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static void add_path(struct strbuf *out, const char *path)
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{
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if (path && *path) {
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if (is_absolute_path(path))
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strbuf_addstr(out, path);
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else
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strbuf_addstr(out, make_absolute_path(path));
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strbuf_addch(out, PATH_SEP);
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}
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}
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void setup_path(void)
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{
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const char *old_path = getenv("PATH");
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struct strbuf new_path;
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strbuf_init(&new_path, 0);
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add_path(&new_path, argv_exec_path);
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add_path(&new_path, getenv(EXEC_PATH_ENVIRONMENT));
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add_path(&new_path, builtin_exec_path());
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add_path(&new_path, argv0_path);
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if (old_path)
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strbuf_addstr(&new_path, old_path);
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else
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strbuf_addstr(&new_path, "/usr/local/bin:/usr/bin:/bin");
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setenv("PATH", new_path.buf, 1);
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strbuf_release(&new_path);
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}
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int execv_git_cmd(const char **argv)
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{
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int argc;
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const char **nargv;
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for (argc = 0; argv[argc]; argc++)
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; /* just counting */
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nargv = xmalloc(sizeof(*nargv) * (argc + 2));
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nargv[0] = "git";
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for (argc = 0; argv[argc]; argc++)
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nargv[argc + 1] = argv[argc];
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nargv[argc + 1] = NULL;
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trace_argv_printf(nargv, "trace: exec:");
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/* execvp() can only ever return if it fails */
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execvp("git", (char **)nargv);
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trace_printf("trace: exec failed: %s\n", strerror(errno));
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free(nargv);
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return -1;
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}
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int execl_git_cmd(const char *cmd,...)
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{
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int argc;
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const char *argv[MAX_ARGS + 1];
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const char *arg;
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va_list param;
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va_start(param, cmd);
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argv[0] = cmd;
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argc = 1;
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while (argc < MAX_ARGS) {
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arg = argv[argc++] = va_arg(param, char *);
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if (!arg)
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break;
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}
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va_end(param);
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if (MAX_ARGS <= argc)
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return error("too many args to run %s", cmd);
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argv[argc] = NULL;
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return execv_git_cmd(argv);
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}
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