diff options
author | Derrick Stolee <dstolee@microsoft.com> | 2020-01-31 20:16:09 +0000 |
---|---|---|
committer | Junio C Hamano <gitster@pobox.com> | 2020-01-31 13:05:29 -0800 |
commit | 4f52c2ce6c578896964e960f6017510f0efd3f46 (patch) | |
tree | 6e35b5a1de6c7d5a73319f2fe96cb0f422155027 /dir.c | |
parent | sparse-checkout: warn on globs in cone patterns (diff) | |
download | tgif-4f52c2ce6c578896964e960f6017510f0efd3f46.tar.xz |
sparse-checkout: properly match escaped characters
In cone mode, the sparse-checkout feature uses hashset containment
queries to match paths. Make this algorithm respect escaped asterisk
(*) and backslash (\) characters.
Create dup_and_filter_pattern() method to convert a pattern by
removing escape characters and dropping an optional "/*" at the end.
This method is available in dir.h as we will use it in
builtin/sparse-checkout.c in a later change.
Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'dir.c')
-rw-r--r-- | dir.c | 35 |
1 files changed, 32 insertions, 3 deletions
@@ -630,6 +630,36 @@ int pl_hashmap_cmp(const void *unused_cmp_data, return strncmp(ee1->pattern, ee2->pattern, min_len); } +static char *dup_and_filter_pattern(const char *pattern) +{ + char *set, *read; + size_t count = 0; + char *result = xstrdup(pattern); + + set = result; + read = result; + + while (*read) { + /* skip escape characters (once) */ + if (*read == '\\') + read++; + + *set = *read; + + set++; + read++; + count++; + } + *set = 0; + + if (count > 2 && + *(set - 1) == '*' && + *(set - 2) == '/') + *(set - 2) = 0; + + return result; +} + static void add_pattern_to_hashsets(struct pattern_list *pl, struct path_pattern *given) { struct pattern_entry *translated; @@ -702,8 +732,7 @@ static void add_pattern_to_hashsets(struct pattern_list *pl, struct path_pattern goto clear_hashmaps; } - truncated = xstrdup(given->pattern); - truncated[given->patternlen - 2] = 0; + truncated = dup_and_filter_pattern(given->pattern); translated = xmalloc(sizeof(struct pattern_entry)); translated->pattern = truncated; @@ -737,7 +766,7 @@ static void add_pattern_to_hashsets(struct pattern_list *pl, struct path_pattern translated = xmalloc(sizeof(struct pattern_entry)); - translated->pattern = xstrdup(given->pattern); + translated->pattern = dup_and_filter_pattern(given->pattern); translated->patternlen = given->patternlen; hashmap_entry_init(&translated->ent, ignore_case ? |