diff options
Diffstat (limited to 'dir.c')
| -rw-r--r-- | dir.c | 80 |
1 files changed, 80 insertions, 0 deletions
@@ -11,6 +11,86 @@ #include "cache.h" #include "dir.h" +int common_prefix(const char **pathspec) +{ + const char *path, *slash, *next; + int prefix; + + if (!pathspec) + return 0; + + path = *pathspec; + slash = strrchr(path, '/'); + if (!slash) + return 0; + + prefix = slash - path + 1; + while ((next = *++pathspec) != NULL) { + int len = strlen(next); + if (len >= prefix && !memcmp(path, next, len)) + continue; + for (;;) { + if (!len) + return 0; + if (next[--len] != '/') + continue; + if (memcmp(path, next, len+1)) + continue; + prefix = len + 1; + break; + } + } + return prefix; +} + +static int match_one(const char *match, const char *name, int namelen) +{ + int matchlen; + + /* If the match was just the prefix, we matched */ + matchlen = strlen(match); + if (!matchlen) + return 1; + + /* + * If we don't match the matchstring exactly, + * we need to match by fnmatch + */ + if (strncmp(match, name, matchlen)) + return !fnmatch(match, name, 0); + + /* + * If we did match the string exactly, we still + * need to make sure that it happened on a path + * component boundary (ie either the last character + * of the match was '/', or the next character of + * the name was '/' or the terminating NUL. + */ + return match[matchlen-1] == '/' || + name[matchlen] == '/' || + !name[matchlen]; +} + +int match_pathspec(const char **pathspec, const char *name, int namelen, int prefix, char *seen) +{ + int retval; + const char *match; + + name += prefix; + namelen -= prefix; + + for (retval = 0; (match = *pathspec++) != NULL; seen++) { + if (retval & *seen) + continue; + match += prefix; + if (match_one(match, name, namelen)) { + retval = 1; + *seen = 1; + } + } + return retval; +} + void add_exclude(const char *string, const char *base, int baselen, struct exclude_list *which) { |