X-Git-Url: https://git.verplant.org/?a=blobdiff_plain;f=rev-tree.c;h=d3fc93c61a6c0629c32413bb7b64f06facda803d;hb=aa1c48df8172f844455cc12f25aa49be8ffdd828;hp=8c19b3161fd5032eb57cac081c454afc8b822989;hpb=2de381f919829aec1e35d6c7cc33519295dcd053;p=git.git

diff --git a/rev-tree.c b/rev-tree.c
index 8c19b316..d3fc93c6 100644
--- a/rev-tree.c
+++ b/rev-tree.c
@@ -1,106 +1,20 @@
 #define _XOPEN_SOURCE /* glibc2 needs this */
 #include <time.h>
 #include <ctype.h>
+
 #include "cache.h"
+#include "revision.h"
 
 /*
- * The low 16 bits of the "flags" field shows whether
- * a commit is part of the path to the root for that
- * parent.
- *
- * Bit 16 is an internal flag that we've seen the
- * definition for this rev, and not just seen it as
- * a parent target.
+ * revision.h leaves the low 16 bits of the "flags" field of the
+ * revision data structure unused. We use it for a "reachable from
+ * this commit <N>" bitmask.
  */
-#define MAX_COMMITS (16)
-#define marked(rev)	((rev)->flags & 0xffff)
-#define SEEN 0x10000
+#define MAX_COMMITS 16
 
 static int show_edges = 0;
 static int basemask = 0;
 
-struct parent {
-	struct revision *parent;
-	struct parent *next;
-};
-
-struct revision {
-	unsigned int flags;
-	unsigned char sha1[20];
-	unsigned long date;
-	struct parent *parent;
-};
-
-static struct revision **revs;
-static int nr_revs, rev_allocs;
-
-static int find_rev(unsigned char *sha1)
-{
-	int first = 0, last = nr_revs;
-
-	while (first < last) {
-		int next = (first + last) / 2;
-		struct revision *rev = revs[next];
-		int cmp;
-
-		cmp = memcmp(sha1, rev->sha1, 20);
-		if (!cmp)
-			return next;
-		if (cmp < 0) {
-			last = next;
-			continue;
-		}
-		first = next+1;
-	}
-	return -first-1;
-}
-
-static struct revision *lookup_rev(unsigned char *sha1)
-{
-	int pos = find_rev(sha1);
-	struct revision *n;
-
-	if (pos >= 0)
-		return revs[pos];
-	
-	pos = -pos-1;
-
-	if (rev_allocs == nr_revs) {
-		rev_allocs = alloc_nr(rev_allocs);
-		revs = realloc(revs, rev_allocs * sizeof(struct revision *));
-	}
-	n = malloc(sizeof(struct revision));
-
-	n->flags = 0;
-	memcpy(n->sha1, sha1, 20);
-	n->parent = NULL;
-
-	/* Insert it into the right place */
-	memmove(revs + pos + 1, revs + pos, (nr_revs - pos) * sizeof(struct revision *));
-	revs[pos] = n;
-	nr_revs++;
-
-	return n;
-}
-
-static int add_relationship(struct revision *rev, unsigned char *parent_sha)
-{
-	struct revision *parent_rev = lookup_rev(parent_sha);
-	struct parent **pp = &rev->parent, *p;
-
-	while ((p = *pp) != NULL) {
-		if (p->parent == parent_rev)
-			return 0;
-		pp = &p->next;
-	}
-
-	p = malloc(sizeof(*p));
-	p->parent = parent_rev;
-	p->next = NULL;
-	*pp = p;
-	return 1;
-}
-
 static unsigned long parse_time(const char *buf)
 {
 	char c, *p;