http-push: add regression tests

[git.git] / cache.h

diff --git a/cache.h b/cache.h
index e1000bccb2470ad66038aabbf57b0af96e506f11..922bed921213e4cc0e40c6f14533024c240af9ed 100644 (file)
--- a/cache.h
+++ b/cache.h
@@ -110,7 +110,6 @@ struct ondisk_cache_entry {
 };
 
 struct cache_entry {
-       struct cache_entry *next;
        unsigned int ce_ctime;
        unsigned int ce_mtime;
        unsigned int ce_dev;
@@ -121,6 +120,7 @@ struct cache_entry {
        unsigned int ce_size;
        unsigned int ce_flags;
        unsigned char sha1[20];
+       struct cache_entry *next;
        char name[FLEX_ARRAY]; /* more */
 };
 
@@ -133,7 +133,39 @@ struct cache_entry {
 #define CE_UPDATE    (0x10000)
 #define CE_REMOVE    (0x20000)
 #define CE_UPTODATE  (0x40000)
-#define CE_UNHASHED  (0x80000)
+
+#define CE_HASHED    (0x100000)
+#define CE_UNHASHED  (0x200000)
+
+/*
+ * Copy the sha1 and stat state of a cache entry from one to
+ * another. But we never change the name, or the hash state!
+ */
+#define CE_STATE_MASK (CE_HASHED | CE_UNHASHED)
+static inline void copy_cache_entry(struct cache_entry *dst, struct cache_entry *src)
+{
+       unsigned int state = dst->ce_flags & CE_STATE_MASK;
+
+       /* Don't copy hash chain and name */
+       memcpy(dst, src, offsetof(struct cache_entry, next));
+
+       /* Restore the hash state */
+       dst->ce_flags = (dst->ce_flags & ~CE_STATE_MASK) | state;
+}
+
+/*
+ * We don't actually *remove* it, we can just mark it invalid so that
+ * we won't find it in lookups.
+ *
+ * Not only would we have to search the lists (simple enough), but
+ * we'd also have to rehash other hash buckets in case this makes the
+ * hash bucket empty (common). So it's much better to just mark
+ * it.
+ */
+static inline void remove_index_entry(struct cache_entry *ce)
+{
+       ce->ce_flags |= CE_UNHASHED;
+}
 
 static inline unsigned create_ce_flags(size_t len, unsigned stage)
 {
@@ -666,6 +698,7 @@ extern const char *git_log_output_encoding;
 /* IO helper functions */
 extern void maybe_flush_or_die(FILE *, const char *);
 extern int copy_fd(int ifd, int ofd);
+extern int copy_file(const char *dst, const char *src, int mode);
 extern int read_in_full(int fd, void *buf, size_t count);
 extern int write_in_full(int fd, const void *buf, size_t count);
 extern void write_or_die(int fd, const void *buf, size_t count);
@@ -719,6 +752,7 @@ void shift_tree(const unsigned char *, const unsigned char *, unsigned char *, i
 #define WS_TRAILING_SPACE      01
 #define WS_SPACE_BEFORE_TAB    02
 #define WS_INDENT_WITH_NON_TAB 04
+#define WS_CR_AT_EOL           010
 #define WS_DEFAULT_RULE (WS_TRAILING_SPACE|WS_SPACE_BEFORE_TAB)
 extern unsigned whitespace_rule_cfg;
 extern unsigned whitespace_rule(const char *);
@@ -727,6 +761,7 @@ extern unsigned check_and_emit_line(const char *line, int len, unsigned ws_rule,
     FILE *stream, const char *set,
     const char *reset, const char *ws);
 extern char *whitespace_error_string(unsigned ws);
+extern int ws_fix_copy(char *, const char *, int, unsigned, int *);
 
 /* ls-files */
 int pathspec_match(const char **spec, char *matched, const char *filename, int skiplen);