t6035-merge-dir-to-symlink depends on SYMLINKS prerequisite
[gitweb.git] / setup.c
diff --git a/setup.c b/setup.c
index dfda532adc16f5e6d25d7cfc5add3e0e2b6a5209..e3781b656d77be94e04c5229e6a190c5fc496490 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();
@@ -167,7 +81,7 @@ void verify_filename(const char *prefix, const char *arg)
        if (errno == ENOENT)
                die("ambiguous argument '%s': unknown revision or path not in the working tree.\n"
                    "Use '--' to separate paths from revisions", arg);
-       die("'%s': %s", arg, strerror(errno));
+       die_errno("failed to stat '%s'", arg);
 }
 
 /*
@@ -189,7 +103,7 @@ void verify_non_filename(const char *prefix, const char *arg)
                die("ambiguous argument '%s': both revision and filename\n"
                    "Use '--' to separate filenames from revisions", arg);
        if (errno != ENOENT && errno != ENOTDIR)
-               die("'%s': %s", arg, strerror(errno));
+               die_errno("failed to stat '%s'", arg);
 }
 
 const char **get_pathspec(const char *prefix, const char **pathspec)
@@ -343,7 +257,7 @@ const char *read_gitfile_gently(const char *path)
                return NULL;
        fd = open(path, O_RDONLY);
        if (fd < 0)
-               die("Error opening %s: %s", path, strerror(errno));
+               die_errno("Error opening '%s'", path);
        buf = xmalloc(st.st_size + 1);
        len = read_in_full(fd, buf, st.st_size);
        close(fd);
@@ -413,7 +327,7 @@ const char *setup_git_directory_gently(int *nongit_ok)
                                return NULL;
                        set_git_dir(make_absolute_path(gitdirenv));
                        if (chdir(work_tree_env) < 0)
-                               die ("Could not chdir to %s", work_tree_env);
+                               die_errno ("Could not chdir to '%s'", work_tree_env);
                        strcat(buffer, "/");
                        return retval;
                }
@@ -425,7 +339,7 @@ const char *setup_git_directory_gently(int *nongit_ok)
        }
 
        if (!getcwd(cwd, sizeof(cwd)-1))
-               die("Unable to read current working directory");
+               die_errno("Unable to read current working directory");
 
        ceil_offset = longest_ancestor_length(cwd, env_ceiling_dirs);
        if (ceil_offset < 0 && has_dos_drive_prefix(cwd))
@@ -468,14 +382,14 @@ const char *setup_git_directory_gently(int *nongit_ok)
                if (offset <= ceil_offset) {
                        if (nongit_ok) {
                                if (chdir(cwd))
-                                       die("Cannot come back to cwd");
+                                       die_errno("Cannot come back to cwd");
                                *nongit_ok = 1;
                                return NULL;
                        }
                        die("Not a git repository (or any of the parent directories): %s", DEFAULT_GIT_DIR_ENVIRONMENT);
                }
                if (chdir(".."))
-                       die("Cannot change to %s/..: %s", cwd, strerror(errno));
+                       die_errno("Cannot change to '%s/..'", cwd);
        }
 
        inside_git_dir = 0;
@@ -520,7 +434,7 @@ int git_config_perm(const char *var, const char *value)
 
        /*
         * Treat values 0, 1 and 2 as compatibility cases, otherwise it is
-        * a chmod value.
+        * a chmod value to restrict to.
         */
        switch (i) {
        case PERM_UMASK:               /* 0 */
@@ -542,7 +456,7 @@ int git_config_perm(const char *var, const char *value)
         * Mask filemode value. Others can not get write permission.
         * x flags for directories are handled separately.
         */
-       return i & 0666;
+       return -(i & 0666);
 }
 
 int check_repository_format_version(const char *var, const char *value, void *cb)
@@ -579,10 +493,10 @@ const char *setup_git_directory(void)
                static char buffer[PATH_MAX + 1];
                char *rel;
                if (retval && chdir(retval))
-                       die ("Could not jump back into original cwd");
+                       die_errno ("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");
+                       die_errno ("Could not jump to working directory");
                return rel && *rel ? strcat(rel, "/") : NULL;
        }