Documentation: convert SubmittingPatches to AsciiDoc
[gitweb.git] / bisect.c
index 6f512c20638718df91ed4a29aae3518f985c0d30..96beeb5d13630672fba3021468670a1bcfc72158 100644 (file)
--- a/bisect.c
+++ b/bisect.c
@@ -1,4 +1,5 @@
 #include "cache.h"
+#include "config.h"
 #include "commit.h"
 #include "diff.h"
 #include "revision.h"
@@ -12,8 +13,8 @@
 #include "sha1-array.h"
 #include "argv-array.h"
 
-static struct sha1_array good_revs;
-static struct sha1_array skipped_revs;
+static struct oid_array good_revs;
+static struct oid_array skipped_revs;
 
 static struct object_id *current_bad_oid;
 
@@ -200,6 +201,7 @@ static struct commit_list *best_bisection_sorted(struct commit_list *list, int n
 {
        struct commit_list *p;
        struct commit_dist *array = xcalloc(nr, sizeof(*array));
+       struct strbuf buf = STRBUF_INIT;
        int cnt, i;
 
        for (p = list, cnt = 0; p; p = p->next) {
@@ -215,19 +217,20 @@ static struct commit_list *best_bisection_sorted(struct commit_list *list, int n
                array[cnt].distance = distance;
                cnt++;
        }
-       qsort(array, cnt, sizeof(*array), compare_commit_dist);
+       QSORT(array, cnt, compare_commit_dist);
        for (p = list, i = 0; i < cnt; i++) {
-               char buf[100]; /* enough for dist=%d */
                struct object *obj = &(array[i].commit->object);
 
-               snprintf(buf, sizeof(buf), "dist=%d", array[i].distance);
-               add_name_decoration(DECORATION_NONE, buf, obj);
+               strbuf_reset(&buf);
+               strbuf_addf(&buf, "dist=%d", array[i].distance);
+               add_name_decoration(DECORATION_NONE, buf.buf, obj);
 
                p->item = array[i].commit;
                p = p->next;
        }
        if (p)
                p->next = NULL;
+       strbuf_release(&buf);
        free(array);
        return list;
 }
@@ -413,9 +416,9 @@ static int register_ref(const char *refname, const struct object_id *oid,
                current_bad_oid = xmalloc(sizeof(*current_bad_oid));
                oidcpy(current_bad_oid, oid);
        } else if (starts_with(refname, good_prefix.buf)) {
-               sha1_array_append(&good_revs, oid->hash);
+               oid_array_append(&good_revs, oid);
        } else if (starts_with(refname, "skip-")) {
-               sha1_array_append(&skipped_revs, oid->hash);
+               oid_array_append(&skipped_revs, oid);
        }
 
        strbuf_release(&good_prefix);
@@ -430,15 +433,13 @@ static int read_bisect_refs(void)
 
 static GIT_PATH_FUNC(git_path_bisect_names, "BISECT_NAMES")
 static GIT_PATH_FUNC(git_path_bisect_expected_rev, "BISECT_EXPECTED_REV")
+static GIT_PATH_FUNC(git_path_bisect_terms, "BISECT_TERMS")
 
 static void read_bisect_paths(struct argv_array *array)
 {
        struct strbuf str = STRBUF_INIT;
        const char *filename = git_path_bisect_names();
-       FILE *fp = fopen(filename, "r");
-
-       if (!fp)
-               die_errno(_("Could not open file '%s'"), filename);
+       FILE *fp = xfopen(filename, "r");
 
        while (strbuf_getline_lf(&str, fp) != EOF) {
                strbuf_trim(&str);
@@ -451,13 +452,13 @@ static void read_bisect_paths(struct argv_array *array)
        fclose(fp);
 }
 
-static char *join_sha1_array_hex(struct sha1_array *array, char delim)
+static char *join_sha1_array_hex(struct oid_array *array, char delim)
 {
        struct strbuf joined_hexs = STRBUF_INIT;
        int i;
 
        for (i = 0; i < array->nr; i++) {
-               strbuf_addstr(&joined_hexs, sha1_to_hex(array->sha1[i]));
+               strbuf_addstr(&joined_hexs, oid_to_hex(array->oid + i));
                if (i + 1 < array->nr)
                        strbuf_addch(&joined_hexs, delim);
        }
@@ -499,8 +500,7 @@ struct commit_list *filter_skipped(struct commit_list *list,
        while (list) {
                struct commit_list *next = list->next;
                list->next = NULL;
-               if (0 <= sha1_array_lookup(&skipped_revs,
-                                          list->item->object.oid.hash)) {
+               if (0 <= oid_array_lookup(&skipped_revs, &list->item->object.oid)) {
                        if (skipped_first && !*skipped_first)
                                *skipped_first = 1;
                        /* Move current to tried list */
@@ -544,7 +544,7 @@ static unsigned get_prn(unsigned count) {
 
 /*
  * Custom integer square root from
- * http://en.wikipedia.org/wiki/Integer_square_root
+ * https://en.wikipedia.org/wiki/Integer_square_root
  */
 static int sqrti(int val)
 {
@@ -621,7 +621,7 @@ static void bisect_rev_setup(struct rev_info *revs, const char *prefix,
        argv_array_pushf(&rev_argv, bad_format, oid_to_hex(current_bad_oid));
        for (i = 0; i < good_revs.nr; i++)
                argv_array_pushf(&rev_argv, good_format,
-                                sha1_to_hex(good_revs.sha1[i]));
+                                oid_to_hex(good_revs.oid + i));
        argv_array_push(&rev_argv, "--");
        if (read_paths)
                read_bisect_paths(&rev_argv);
@@ -667,7 +667,7 @@ static int is_expected_rev(const struct object_id *oid)
        if (stat(filename, &st) || !S_ISREG(st.st_mode))
                return 0;
 
-       fp = fopen(filename, "r");
+       fp = fopen_or_warn(filename, "r");
        if (!fp)
                return 0;
 
@@ -680,16 +680,16 @@ static int is_expected_rev(const struct object_id *oid)
        return res;
 }
 
-static int bisect_checkout(const unsigned char *bisect_rev, int no_checkout)
+static int bisect_checkout(const struct object_id *bisect_rev, int no_checkout)
 {
-       char bisect_rev_hex[GIT_SHA1_HEXSZ + 1];
+       char bisect_rev_hex[GIT_MAX_HEXSZ + 1];
 
-       memcpy(bisect_rev_hex, sha1_to_hex(bisect_rev), GIT_SHA1_HEXSZ + 1);
-       update_ref(NULL, "BISECT_EXPECTED_REV", bisect_rev, NULL, 0, UPDATE_REFS_DIE_ON_ERR);
+       memcpy(bisect_rev_hex, oid_to_hex(bisect_rev), GIT_SHA1_HEXSZ + 1);
+       update_ref(NULL, "BISECT_EXPECTED_REV", bisect_rev->hash, NULL, 0, UPDATE_REFS_DIE_ON_ERR);
 
        argv_checkout[2] = bisect_rev_hex;
        if (no_checkout) {
-               update_ref(NULL, "BISECT_HEAD", bisect_rev, NULL, 0, UPDATE_REFS_DIE_ON_ERR);
+               update_ref(NULL, "BISECT_HEAD", bisect_rev->hash, NULL, 0, UPDATE_REFS_DIE_ON_ERR);
        } else {
                int res;
                res = run_command_v_opt(argv_checkout, RUN_GIT_CMD);
@@ -701,11 +701,11 @@ static int bisect_checkout(const unsigned char *bisect_rev, int no_checkout)
        return run_command_v_opt(argv_show_branch, RUN_GIT_CMD);
 }
 
-static struct commit *get_commit_reference(const unsigned char *sha1)
+static struct commit *get_commit_reference(const struct object_id *oid)
 {
-       struct commit *r = lookup_commit_reference(sha1);
+       struct commit *r = lookup_commit_reference(oid);
        if (!r)
-               die(_("Not a valid commit name %s"), sha1_to_hex(sha1));
+               die(_("Not a valid commit name %s"), oid_to_hex(oid));
        return r;
 }
 
@@ -715,9 +715,9 @@ static struct commit **get_bad_and_good_commits(int *rev_nr)
        int i, n = 0;
 
        ALLOC_ARRAY(rev, 1 + good_revs.nr);
-       rev[n++] = get_commit_reference(current_bad_oid->hash);
+       rev[n++] = get_commit_reference(current_bad_oid);
        for (i = 0; i < good_revs.nr; i++)
-               rev[n++] = get_commit_reference(good_revs.sha1[i]);
+               rev[n++] = get_commit_reference(good_revs.oid + i);
        *rev_nr = n;
 
        return rev;
@@ -747,16 +747,16 @@ static void handle_bad_merge_base(void)
                exit(3);
        }
 
-       fprintf(stderr, _("Some %s revs are not ancestor of the %s rev.\n"
+       fprintf(stderr, _("Some %s revs are not ancestors of the %s rev.\n"
                "git bisect cannot work properly in this case.\n"
                "Maybe you mistook %s and %s revs?\n"),
                term_good, term_bad, term_good, term_bad);
        exit(1);
 }
 
-static void handle_skipped_merge_base(const unsigned char *mb)
+static void handle_skipped_merge_base(const struct object_id *mb)
 {
-       char *mb_hex = sha1_to_hex(mb);
+       char *mb_hex = oid_to_hex(mb);
        char *bad_hex = oid_to_hex(current_bad_oid);
        char *good_hex = join_sha1_array_hex(&good_revs, ' ');
 
@@ -787,12 +787,12 @@ static void check_merge_bases(int no_checkout)
        result = get_merge_bases_many(rev[0], rev_nr - 1, rev + 1);
 
        for (; result; result = result->next) {
-               const unsigned char *mb = result->item->object.oid.hash;
-               if (!hashcmp(mb, current_bad_oid->hash)) {
+               const struct object_id *mb = &result->item->object.oid;
+               if (!oidcmp(mb, current_bad_oid)) {
                        handle_bad_merge_base();
-               } else if (0 <= sha1_array_lookup(&good_revs, mb)) {
+               } else if (0 <= oid_array_lookup(&good_revs, mb)) {
                        continue;
-               } else if (0 <= sha1_array_lookup(&skipped_revs, mb)) {
+               } else if (0 <= oid_array_lookup(&skipped_revs, mb)) {
                        handle_skipped_merge_base(mb);
                } else {
                        printf(_("Bisecting: a merge base must be tested\n"));
@@ -826,7 +826,8 @@ static int check_ancestors(const char *prefix)
 
        /* Clean up objects used, as they will be reused. */
        clear_commit_marks_for_object_array(&pending_copy, ALL_REV_FLAGS);
-       free(pending_copy.objects);
+
+       object_array_clear(&pending_copy);
 
        return res;
 }
@@ -905,7 +906,7 @@ static void show_diff_tree(const char *prefix, struct commit *commit)
 void read_bisect_terms(const char **read_bad, const char **read_good)
 {
        struct strbuf str = STRBUF_INIT;
-       const char *filename = git_path("BISECT_TERMS");
+       const char *filename = git_path_bisect_terms();
        FILE *fp = fopen(filename, "r");
 
        if (!fp) {
@@ -939,8 +940,8 @@ int bisect_next_all(const char *prefix, int no_checkout)
        struct rev_info revs;
        struct commit_list *tried;
        int reaches = 0, all = 0, nr, steps;
-       const unsigned char *bisect_rev;
-       char steps_msg[32];
+       struct object_id *bisect_rev;
+       char *steps_msg;
 
        read_bisect_terms(&term_bad, &term_good);
        if (read_bisect_refs())
@@ -977,11 +978,11 @@ int bisect_next_all(const char *prefix, int no_checkout)
                exit(4);
        }
 
-       bisect_rev = revs.commits->item->object.oid.hash;
+       bisect_rev = &revs.commits->item->object.oid;
 
-       if (!hashcmp(bisect_rev, current_bad_oid->hash)) {
+       if (!oidcmp(bisect_rev, current_bad_oid)) {
                exit_if_skipped_commits(tried, current_bad_oid);
-               printf("%s is the first %s commit\n", sha1_to_hex(bisect_rev),
+               printf("%s is the first %s commit\n", oid_to_hex(bisect_rev),
                        term_bad);
                show_diff_tree(prefix, revs.commits->item);
                /* This means the bisection process succeeded. */
@@ -990,14 +991,17 @@ int bisect_next_all(const char *prefix, int no_checkout)
 
        nr = all - reaches - 1;
        steps = estimate_bisect_steps(all);
-       xsnprintf(steps_msg, sizeof(steps_msg),
-                 Q_("(roughly %d step)", "(roughly %d steps)", steps),
-                 steps);
-       /* TRANSLATORS: the last %s will be replaced with
-          "(roughly %d steps)" translation */
+
+       steps_msg = xstrfmt(Q_("(roughly %d step)", "(roughly %d steps)",
+                 steps), steps);
+       /*
+        * TRANSLATORS: the last %s will be replaced with "(roughly %d
+        * steps)" translation.
+        */
        printf(Q_("Bisecting: %d revision left to test after this %s\n",
                  "Bisecting: %d revisions left to test after this %s\n",
                  nr), nr, steps_msg);
+       free(steps_msg);
 
        return bisect_checkout(bisect_rev, no_checkout);
 }