add global --literal-pathspecs option

diff --git a/dir.c b/dir.c
index c4e64a5bc93176b62979a264fa8a8c54c4349233..03ff36bc6eb24d716fc3fa49ff745575fa79683b 100644 (file)
--- a/dir.c
+++ b/dir.c
@@ -38,6 +38,7 @@ static size_t common_prefix_len(const char **pathspec)
 {
        const char *n, *first;
        size_t max = 0;
+       int literal = limit_pathspec_to_literal();
 
        if (!pathspec)
                return max;
@@ -47,7 +48,7 @@ static size_t common_prefix_len(const char **pathspec)
                size_t i, len = 0;
                for (i = 0; first == n || i < max; i++) {
                        char c = n[i];
-                       if (!c || c != first[i] || is_glob_special(c))
+                       if (!c || c != first[i] || (!literal && is_glob_special(c)))
                                break;
                        if (c == '/')
                                len = i + 1;
@@ -117,6 +118,7 @@ int within_depth(const char *name, int namelen,
 static int match_one(const char *match, const char *name, int namelen)
 {
        int matchlen;
+       int literal = limit_pathspec_to_literal();
 
        /* If the match was just the prefix, we matched */
        if (!*match)
@@ -126,7 +128,7 @@ static int match_one(const char *match, const char *name, int namelen)
                for (;;) {
                        unsigned char c1 = tolower(*match);
                        unsigned char c2 = tolower(*name);
-                       if (c1 == '\0' || is_glob_special(c1))
+                       if (c1 == '\0' || (!literal && is_glob_special(c1)))
                                break;
                        if (c1 != c2)
                                return 0;
@@ -138,7 +140,7 @@ static int match_one(const char *match, const char *name, int namelen)
                for (;;) {
                        unsigned char c1 = *match;
                        unsigned char c2 = *name;
-                       if (c1 == '\0' || is_glob_special(c1))
+                       if (c1 == '\0' || (!literal && is_glob_special(c1)))
                                break;
                        if (c1 != c2)
                                return 0;
@@ -148,14 +150,16 @@ static int match_one(const char *match, const char *name, int namelen)
                }
        }
 
-
        /*
         * If we don't match the matchstring exactly,
         * we need to match by fnmatch
         */
        matchlen = strlen(match);
-       if (strncmp_icase(match, name, matchlen))
+       if (strncmp_icase(match, name, matchlen)) {
+               if (literal)
+                       return 0;
                return !fnmatch_icase(match, name, 0) ? MATCHED_FNMATCH : 0;
+       }
 
        if (namelen == matchlen)
                return MATCHED_EXACTLY;
@@ -308,10 +312,10 @@ static int no_wildcard(const char *string)
        return string[simple_length(string)] == '\0';
 }
 
-static void parse_exclude_pattern(const char **pattern,
-                                 int *patternlen,
-                                 int *flags,
-                                 int *nowildcardlen)
+void parse_exclude_pattern(const char **pattern,
+                          int *patternlen,
+                          int *flags,
+                          int *nowildcardlen)
 {
        const char *p = *pattern;
        size_t i, len;
@@ -424,6 +428,8 @@ int add_excludes_from_file_to_list(const char *fname,
 
        fd = open(fname, O_RDONLY);
        if (fd < 0 || fstat(fd, &st) < 0) {
+               if (errno != ENOENT)
+                       warn_on_inaccessible(fname);
                if (0 <= fd)
                        close(fd);
                if (!check_index ||
@@ -530,9 +536,9 @@ static void prep_exclude(struct dir_struct *dir, const char *base, int baselen)
        dir->basebuf[baselen] = '\0';
 }
 
-static int match_basename(const char *basename, int basenamelen,
-                         const char *pattern, int prefix, int patternlen,
-                         int flags)
+int match_basename(const char *basename, int basenamelen,
+                  const char *pattern, int prefix, int patternlen,
+                  int flags)
 {
        if (prefix == patternlen) {
                if (!strcmp_icase(pattern, basename))
@@ -549,10 +555,10 @@ static int match_basename(const char *basename, int basenamelen,
        return 0;
 }
 
-static int match_pathname(const char *pathname, int pathlen,
-                         const char *base, int baselen,
-                         const char *pattern, int prefix, int patternlen,
-                         int flags)
+int match_pathname(const char *pathname, int pathlen,
+                  const char *base, int baselen,
+                  const char *pattern, int prefix, int patternlen,
+                  int flags)
 {
        const char *name;
        int namelen;
@@ -1363,12 +1369,17 @@ int remove_dir_recursively(struct strbuf *path, int flag)
 void setup_standard_excludes(struct dir_struct *dir)
 {
        const char *path;
+       char *xdg_path;
 
        dir->exclude_per_dir = ".gitignore";
        path = git_path("info/exclude");
-       if (!access(path, R_OK))
+       if (!excludes_file) {
+               home_config_paths(NULL, &xdg_path, "ignore");
+               excludes_file = xdg_path;
+       }
+       if (!access_or_warn(path, R_OK))
                add_excludes_from_file(dir, path);
-       if (excludes_file && !access(excludes_file, R_OK))
+       if (excludes_file && !access_or_warn(excludes_file, R_OK))
                add_excludes_from_file(dir, excludes_file);
 }
 
@@ -1422,7 +1433,8 @@ int init_pathspec(struct pathspec *pathspec, const char **paths)
 
                item->match = path;
                item->len = strlen(path);
-               item->use_wildcard = !no_wildcard(path);
+               item->use_wildcard = !limit_pathspec_to_literal() &&
+                                    !no_wildcard(path);
                if (item->use_wildcard)
                        pathspec->has_wildcard = 1;
        }
@@ -1438,3 +1450,11 @@ void free_pathspec(struct pathspec *pathspec)
        free(pathspec->items);
        pathspec->items = NULL;
 }
+
+int limit_pathspec_to_literal(void)
+{
+       static int flag = -1;
+       if (flag < 0)
+               flag = git_env_bool(GIT_LITERAL_PATHSPECS_ENVIRONMENT, 0);
+       return flag;
+}