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authorbrian m. carlson <sandals@crustytoothpaste.net>2020-02-22 20:17:48 (GMT)
committerJunio C Hamano <gitster@pobox.com>2020-02-28 17:53:41 (GMT)
commitd9db599ca85b008faedc1d5e771e28b6fb648c4e (patch)
treeddf59df0ecac306b2c8d24d934b18796fa32667b /fast-import.c
parent11d8ef3ee7ab8cfe56a4276ea4b62794d23293e3 (diff)
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fast-import: add a generic function to iterate over marks
Currently, we can iterate over marks only to dump them to a file. In the future, we'll want to perform an arbitrary operation over the items of a mark set. Add a function, for_each_mark, that iterates over marks in a set and performs an arbitrary callback function for each mark. Switch the mark dumping routine to use this function now that it's available. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'fast-import.c')
-rw-r--r--fast-import.c50
1 files changed, 26 insertions, 24 deletions
diff --git a/fast-import.c b/fast-import.c
index 8aaa7f6..6711f71 100644
--- a/fast-import.c
+++ b/fast-import.c
@@ -132,6 +132,7 @@ struct recent_command {
};
typedef void (*mark_set_inserter_t)(struct mark_set *s, struct object_id *oid, uintmax_t mark);
+typedef void (*each_mark_fn_t)(uintmax_t mark, void *obj, void *cbp);
/* Configured limits on output */
static unsigned long max_depth = 50;
@@ -232,6 +233,29 @@ static void parse_get_mark(const char *p);
static void parse_cat_blob(const char *p);
static void parse_ls(const char *p, struct branch *b);
+static void for_each_mark(struct mark_set *m, uintmax_t base, each_mark_fn_t callback, void *p)
+{
+ uintmax_t k;
+ if (m->shift) {
+ for (k = 0; k < 1024; k++) {
+ if (m->data.sets[k])
+ for_each_mark(m->data.sets[k], base + (k << m->shift), callback, p);
+ }
+ } else {
+ for (k = 0; k < 1024; k++) {
+ if (m->data.marked[k])
+ callback(base + k, m->data.marked[k], p);
+ }
+ }
+}
+
+static void dump_marks_fn(uintmax_t mark, void *object, void *cbp) {
+ struct object_entry *e = object;
+ FILE *f = cbp;
+
+ fprintf(f, ":%" PRIuMAX " %s\n", mark, oid_to_hex(&e->idx.oid));
+}
+
static void write_branch_report(FILE *rpt, struct branch *b)
{
fprintf(rpt, "%s:\n", b->name);
@@ -260,8 +284,6 @@ static void write_branch_report(FILE *rpt, struct branch *b)
fputc('\n', rpt);
}
-static void dump_marks_helper(FILE *, uintmax_t, struct mark_set *);
-
static void write_crash_report(const char *err)
{
char *loc = git_pathdup("fast_import_crash_%"PRIuMAX, (uintmax_t) getpid());
@@ -340,7 +362,7 @@ static void write_crash_report(const char *err)
if (export_marks_file)
fprintf(rpt, " exported to %s\n", export_marks_file);
else
- dump_marks_helper(rpt, 0, marks);
+ for_each_mark(marks, 0, dump_marks_fn, rpt);
fputc('\n', rpt);
fputs("-------------------\n", rpt);
@@ -1655,26 +1677,6 @@ static void dump_tags(void)
strbuf_release(&err);
}
-static void dump_marks_helper(FILE *f,
- uintmax_t base,
- struct mark_set *m)
-{
- uintmax_t k;
- if (m->shift) {
- for (k = 0; k < 1024; k++) {
- if (m->data.sets[k])
- dump_marks_helper(f, base + (k << m->shift),
- m->data.sets[k]);
- }
- } else {
- for (k = 0; k < 1024; k++) {
- if (m->data.marked[k])
- fprintf(f, ":%" PRIuMAX " %s\n", base + k,
- oid_to_hex(&m->data.marked[k]->idx.oid));
- }
- }
-}
-
static void dump_marks(void)
{
struct lock_file mark_lock = LOCK_INIT;
@@ -1704,7 +1706,7 @@ static void dump_marks(void)
return;
}
- dump_marks_helper(f, 0, marks);
+ for_each_mark(marks, 0, dump_marks_fn, f);
if (commit_lock_file(&mark_lock)) {
failure |= error_errno("Unable to write file %s",
export_marks_file);