Merge branch 'cc/maint-1.6.0-bisect-fix'

[git.git] / setup.c

diff --git a/setup.c b/setup.c
index 6cf909463d4ad3681a2f35269db9dc944f4389c2..6c2deda18492acb5a8597563d6843f9d0dd232c0 100644 (file)
--- a/setup.c
+++ b/setup.c
@@ -4,92 +4,6 @@
 static int inside_git_dir = -1;
 static int inside_work_tree = -1;
 
-static int sanitary_path_copy(char *dst, const char *src)
-{
-       char *dst0;
-
-       if (has_dos_drive_prefix(src)) {
-               *dst++ = *src++;
-               *dst++ = *src++;
-       }
-       dst0 = dst;
-
-       if (is_dir_sep(*src)) {
-               *dst++ = '/';
-               while (is_dir_sep(*src))
-                       src++;
-       }
-
-       for (;;) {
-               char c = *src;
-
-               /*
-                * A path component that begins with . could be
-                * special:
-                * (1) "." and ends   -- ignore and terminate.
-                * (2) "./"           -- ignore them, eat slash and continue.
-                * (3) ".." and ends  -- strip one and terminate.
-                * (4) "../"          -- strip one, eat slash and continue.
-                */
-               if (c == '.') {
-                       if (!src[1]) {
-                               /* (1) */
-                               src++;
-                       } else if (is_dir_sep(src[1])) {
-                               /* (2) */
-                               src += 2;
-                               while (is_dir_sep(*src))
-                                       src++;
-                               continue;
-                       } else if (src[1] == '.') {
-                               if (!src[2]) {
-                                       /* (3) */
-                                       src += 2;
-                                       goto up_one;
-                               } else if (is_dir_sep(src[2])) {
-                                       /* (4) */
-                                       src += 3;
-                                       while (is_dir_sep(*src))
-                                               src++;
-                                       goto up_one;
-                               }
-                       }
-               }
-
-               /* copy up to the next '/', and eat all '/' */
-               while ((c = *src++) != '\0' && !is_dir_sep(c))
-                       *dst++ = c;
-               if (is_dir_sep(c)) {
-                       *dst++ = '/';
-                       while (is_dir_sep(c))
-                               c = *src++;
-                       src--;
-               } else if (!c)
-                       break;
-               continue;
-
-       up_one:
-               /*
-                * dst0..dst is prefix portion, and dst[-1] is '/';
-                * go up one level.
-                */
-               dst -= 2; /* go past trailing '/' if any */
-               if (dst < dst0)
-                       return -1;
-               while (1) {
-                       if (dst <= dst0)
-                               break;
-                       c = *dst--;
-                       if (c == '/') { /* MinGW: cannot be '\\' anymore */
-                               dst += 2;
-                               break;
-                       }
-               }
-       }
-       *dst = '\0';
-       return 0;
-}
-
 const char *prefix_path(const char *prefix, int len, const char *path)
 {
        const char *orig = path;
@@ -101,7 +15,7 @@ const char *prefix_path(const char *prefix, int len, const char *path)
                        memcpy(sanitized, prefix, len);
                strcpy(sanitized + len, path);
        }
-       if (sanitary_path_copy(sanitized, sanitized))
+       if (normalize_path_copy(sanitized, sanitized))
                goto error_out;
        if (is_absolute_path(orig)) {
                const char *work_tree = get_git_work_tree();
@@ -110,9 +24,7 @@ const char *prefix_path(const char *prefix, int len, const char *path)
                if (strncmp(sanitized, work_tree, len) ||
                    (sanitized[len] != '\0' && sanitized[len] != '/')) {
                error_out:
-                       error("'%s' is outside repository", orig);
-                       free(sanitized);
-                       return NULL;
+                       die("'%s' is outside repository", orig);
                }
                if (sanitized[len] == '/')
                        len++;
@@ -216,10 +128,7 @@ const char **get_pathspec(const char *prefix, const char **pathspec)
        prefixlen = prefix ? strlen(prefix) : 0;
        while (*src) {
                const char *p = prefix_path(prefix, prefixlen, *src);
-               if (p)
-                       *(dst++) = p;
-               else
-                       exit(128); /* error message already given */
+               *(dst++) = p;
                src++;
        }
        *dst = NULL;
@@ -461,7 +370,11 @@ const char *setup_git_directory_gently(int *nongit_ok)
                        inside_git_dir = 1;
                        if (!work_tree_env)
                                inside_work_tree = 0;
-                       setenv(GIT_DIR_ENVIRONMENT, ".", 1);
+                       if (offset != len) {
+                               cwd[offset] = '\0';
+                               setenv(GIT_DIR_ENVIRONMENT, cwd, 1);
+                       } else
+                               setenv(GIT_DIR_ENVIRONMENT, ".", 1);
                        check_repository_format_gently(nongit_ok);
                        return NULL;
                }
@@ -473,9 +386,10 @@ const char *setup_git_directory_gently(int *nongit_ok)
                                *nongit_ok = 1;
                                return NULL;
                        }
-                       die("Not a git repository");
+                       die("Not a git repository (or any of the parent directories): %s", DEFAULT_GIT_DIR_ENVIRONMENT);
                }
-               chdir("..");
+               if (chdir(".."))
+                       die("Cannot change to %s/..: %s", cwd, strerror(errno));
        }
 
        inside_git_dir = 0;
@@ -581,6 +495,8 @@ const char *setup_git_directory(void)
                if (retval && chdir(retval))
                        die ("Could not jump back into original cwd");
                rel = get_relative_cwd(buffer, PATH_MAX, get_git_work_tree());
+               if (rel && *rel && chdir(get_git_work_tree()))
+                       die ("Could not jump to working directory");
                return rel && *rel ? strcat(rel, "/") : NULL;
        }