rebase -i --autosquash: auto-squash commits

diff --git a/builtin-grep.c b/builtin-grep.c
index fd450bc16e56a634b14cfa33f77e5192412643d8..a5b6719a1af014497399ea6ff4f1a6f3852a0570 100644 (file)
--- a/builtin-grep.c
+++ b/builtin-grep.c
@@ -53,26 +53,58 @@ static int grep_config(const char *var, const char *value, void *cb)
        return git_color_default_config(var, value, cb);
 }
 
+/*
+ * Return non-zero if max_depth is negative or path has no more then max_depth
+ * slashes.
+ */
+static int accept_subdir(const char *path, int max_depth)
+{
+       if (max_depth < 0)
+               return 1;
+
+       while ((path = strchr(path, '/')) != NULL) {
+               max_depth--;
+               if (max_depth < 0)
+                       return 0;
+               path++;
+       }
+       return 1;
+}
+
+/*
+ * Return non-zero if name is a subdirectory of match and is not too deep.
+ */
+static int is_subdir(const char *name, int namelen,
+               const char *match, int matchlen, int max_depth)
+{
+       if (matchlen > namelen || strncmp(name, match, matchlen))
+               return 0;
+
+       if (name[matchlen] == '\0') /* exact match */
+               return 1;
+
+       if (!matchlen || match[matchlen-1] == '/' || name[matchlen] == '/')
+               return accept_subdir(name + matchlen + 1, max_depth);
+
+       return 0;
+}
+
 /*
  * git grep pathspecs are somewhat different from diff-tree pathspecs;
  * pathname wildcards are allowed.
  */
-static int pathspec_matches(const char **paths, const char *name)
+static int pathspec_matches(const char **paths, const char *name, int max_depth)
 {
        int namelen, i;
        if (!paths || !*paths)
-               return 1;
+               return accept_subdir(name, max_depth);
        namelen = strlen(name);
        for (i = 0; paths[i]; i++) {
                const char *match = paths[i];
                int matchlen = strlen(match);
                const char *cp, *meta;
 
-               if (!matchlen ||
-                   ((matchlen <= namelen) &&
-                    !strncmp(name, match, matchlen) &&
-                    (match[matchlen-1] == '/' ||
-                     name[matchlen] == '\0' || name[matchlen] == '/')))
+               if (is_subdir(name, namelen, match, matchlen, max_depth))
                        return 1;
                if (!fnmatch(match, name, 0))
                        return 1;
@@ -335,7 +367,7 @@ static int external_grep(struct grep_opt *opt, const char **paths, int cached)
                push_arg("-h");
        if (opt->regflags & REG_EXTENDED)
                push_arg("-E");
-       if (opt->regflags & REG_ICASE)
+       if (opt->ignore_case)
                push_arg("-i");
        if (opt->binary == GREP_BINARY_NOMATCH)
                push_arg("-I");
@@ -401,7 +433,11 @@ static int external_grep(struct grep_opt *opt, const char **paths, int cached)
 
                if (opt->color_external && strlen(opt->color_external) > 0)
                        push_arg(opt->color_external);
+       } else {
+               unsetenv("GREP_COLOR");
+               unsetenv("GREP_COLORS");
        }
+       unsetenv("GREP_OPTIONS");
 
        hit = 0;
        argc = nr;
@@ -411,7 +447,7 @@ static int external_grep(struct grep_opt *opt, const char **paths, int cached)
                int kept;
                if (!S_ISREG(ce->ce_mode))
                        continue;
-               if (!pathspec_matches(paths, ce->name))
+               if (!pathspec_matches(paths, ce->name, opt->max_depth))
                        continue;
                name = ce->name;
                if (name[0] == '-') {
@@ -469,7 +505,7 @@ static int grep_cache(struct grep_opt *opt, const char **paths, int cached,
                struct cache_entry *ce = active_cache[nr];
                if (!S_ISREG(ce->ce_mode))
                        continue;
-               if (!pathspec_matches(paths, ce->name))
+               if (!pathspec_matches(paths, ce->name, opt->max_depth))
                        continue;
                /*
                 * If CE_VALID is on, we assume worktree file and its cache entry
@@ -529,7 +565,7 @@ static int grep_tree(struct grep_opt *opt, const char **paths,
                        strbuf_addch(&pathbuf, '/');
 
                down = pathbuf.buf + tn_len;
-               if (!pathspec_matches(paths, down))
+               if (!pathspec_matches(paths, down, opt->max_depth))
                        ;
                else if (S_ISREG(entry.mode))
                        hit |= grep_sha1(opt, entry.sha1, pathbuf.buf, tn_len);
@@ -599,7 +635,7 @@ static int file_callback(const struct option *opt, const char *arg, int unset)
        struct grep_opt *grep_opt = opt->value;
        FILE *patterns;
        int lno = 0;
-       struct strbuf sb;
+       struct strbuf sb = STRBUF_INIT;
 
        patterns = fopen(arg, "r");
        if (!patterns)
@@ -674,8 +710,8 @@ int cmd_grep(int argc, const char **argv, const char *prefix)
                OPT_GROUP(""),
                OPT_BOOLEAN('v', "invert-match", &opt.invert,
                        "show non-matching lines"),
-               OPT_BIT('i', "ignore-case", &opt.regflags,
-                       "case insensitive matching", REG_ICASE),
+               OPT_BOOLEAN('i', "ignore-case", &opt.ignore_case,
+                       "case insensitive matching"),
                OPT_BOOLEAN('w', "word-regexp", &opt.word_regexp,
                        "match patterns only at word boundaries"),
                OPT_SET_INT('a', "text", &opt.binary,
@@ -683,6 +719,9 @@ int cmd_grep(int argc, const char **argv, const char *prefix)
                OPT_SET_INT('I', NULL, &opt.binary,
                        "don't match patterns in binary files",
                        GREP_BINARY_NOMATCH),
+               { OPTION_INTEGER, 0, "max-depth", &opt.max_depth, "depth",
+                       "descend at most <depth> levels", PARSE_OPT_NONEG,
+                       NULL, 1 },
                OPT_GROUP(""),
                OPT_BIT('E', "extended-regexp", &opt.regflags,
                        "use extended POSIX regular expressions", REG_EXTENDED),
@@ -753,6 +792,13 @@ int cmd_grep(int argc, const char **argv, const char *prefix)
                OPT_END()
        };
 
+       /*
+        * 'git grep -h', unlike 'git grep -h <pattern>', is a request
+        * to show usage information and exit.
+        */
+       if (argc == 2 && !strcmp(argv[1], "-h"))
+               usage_with_options(grep_usage, options);
+
        memset(&opt, 0, sizeof(opt));
        opt.prefix = prefix;
        opt.prefix_length = (prefix && *prefix) ? strlen(prefix) : 0;
@@ -760,6 +806,7 @@ int cmd_grep(int argc, const char **argv, const char *prefix)
        opt.pathname = 1;
        opt.pattern_tail = &opt.pattern_list;
        opt.regflags = REG_NEWLINE;
+       opt.max_depth = -1;
 
        strcpy(opt.color_match, GIT_COLOR_RED GIT_COLOR_BOLD);
        opt.color = -1;
@@ -794,6 +841,8 @@ int cmd_grep(int argc, const char **argv, const char *prefix)
                external_grep_allowed = 0;
        if (!opt.pattern_list)
                die("no pattern given.");
+       if (!opt.fixed && opt.ignore_case)
+               opt.regflags |= REG_ICASE;
        if ((opt.regflags != REG_NEWLINE) && opt.fixed)
                die("cannot mix --fixed-strings and regexp");
        compile_grep_patterns(&opt);