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rev-list: call new "filter_skip" function

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This patch implements a new "filter_skip" function in C in
"bisect.c" that will later replace the existing implementation in
shell in "git-bisect.sh".

An array is used to store the skipped commits. But the array is
not yet fed anything.

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Christian Couder 2009-03-26 05:55:49 +01:00 committed by Junio C Hamano
parent 5aaa507b06
commit 9518864816
3 changed files with 93 additions and 6 deletions
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63
bisect.c
View File

@ -4,6 +4,9 @@
#include "revision.h"
#include "bisect.h"
static unsigned char (*skipped_sha1)[20];
static int skipped_sha1_nr;
/* bits #0-15 in revision.h */
#define COUNTED (1u<<16)
@ -386,3 +389,63 @@ struct commit_list *find_bisection(struct commit_list *list,
return best;
}
static int skipcmp(const void *a, const void *b)
{
return hashcmp(a, b);
}
static void prepare_skipped(void)
{
qsort(skipped_sha1, skipped_sha1_nr, sizeof(*skipped_sha1), skipcmp);
}
static int lookup_skipped(unsigned char *sha1)
{
int lo, hi;
lo = 0;
hi = skipped_sha1_nr;
while (lo < hi) {
int mi = (lo + hi) / 2;
int cmp = hashcmp(sha1, skipped_sha1[mi]);
if (!cmp)
return mi;
if (cmp < 0)
hi = mi;
else
lo = mi + 1;
}
return -lo - 1;
}
struct commit_list *filter_skipped(struct commit_list *list,
struct commit_list **tried,
int show_all)
{
struct commit_list *filtered = NULL, **f = &filtered;
*tried = NULL;
if (!skipped_sha1_nr)
return list;
prepare_skipped();
while (list) {
struct commit_list *next = list->next;
list->next = NULL;
if (0 <= lookup_skipped(list->item->object.sha1)) {
/* Move current to tried list */
*tried = list;
tried = &list->next;
} else {
if (!show_all)
return list;
/* Move current to filtered list */
*f = list;
f = &list->next;
}
list = next;
}
return filtered;
}

6
bisect.h
View File

@ -5,7 +5,11 @@ extern struct commit_list *find_bisection(struct commit_list *list,
int *reaches, int *all,
int find_all);
extern struct commit_list *filter_skipped(struct commit_list *list,
struct commit_list **tried,
int show_all);
extern int show_bisect_vars(struct rev_info *revs, int reaches, int all,
int show_all);
int show_all, int show_tried);
#endif

30
builtin-rev-list.c
View File

@ -226,14 +226,28 @@ static int estimate_bisect_steps(int all)
return (e < 3 * x) ? n : n - 1;
}
int show_bisect_vars(struct rev_info *revs, int reaches, int all, int show_all)
static void show_tried_revs(struct commit_list *tried)
{
printf("bisect_tried='");
for (;tried; tried = tried->next) {
char *format = tried->next ? "%s|" : "%s";
printf(format, sha1_to_hex(tried->item->object.sha1));
}
printf("'\n");
}
int show_bisect_vars(struct rev_info *revs, int reaches, int all,
int show_all, int show_tried)
{
int cnt;
char hex[41];
char hex[41] = "";
struct commit_list *tried;
if (!revs->commits)
if (!revs->commits && !show_tried)
return 1;
revs->commits = filter_skipped(revs->commits, &tried, show_all);
/*
* revs->commits can reach "reaches" commits among
* "all" commits. If it is good, then there are
@ -247,13 +261,16 @@ int show_bisect_vars(struct rev_info *revs, int reaches, int all, int show_all)
if (cnt < reaches)
cnt = reaches;
strcpy(hex, sha1_to_hex(revs->commits->item->object.sha1));
if (revs->commits)
strcpy(hex, sha1_to_hex(revs->commits->item->object.sha1));
if (show_all) {
traverse_commit_list(revs, show_commit, show_object);
printf("------\n");
}
if (show_tried)
show_tried_revs(tried);
printf("bisect_rev=%s\n"
"bisect_nr=%d\n"
"bisect_good=%d\n"
@ -278,6 +295,7 @@ int cmd_rev_list(int argc, const char **argv, const char *prefix)
int bisect_list = 0;
int bisect_show_vars = 0;
int bisect_find_all = 0;
int bisect_show_all = 0;
int quiet = 0;
git_config(git_default_config, NULL);
@ -305,6 +323,7 @@ int cmd_rev_list(int argc, const char **argv, const char *prefix)
if (!strcmp(arg, "--bisect-all")) {
bisect_list = 1;
bisect_find_all = 1;
bisect_show_all = 1;
revs.show_decorations = 1;
continue;
}
@ -357,9 +376,10 @@ int cmd_rev_list(int argc, const char **argv, const char *prefix)
revs.commits = find_bisection(revs.commits, &reaches, &all,
bisect_find_all);
if (bisect_show_vars)
return show_bisect_vars(&revs, reaches, all,
bisect_find_all);
bisect_show_all, 0);
}
traverse_commit_list(&revs,