static struct string_list tag_refs = STRING_LIST_INIT_NODUP;
static struct refspec refspecs = REFSPEC_INIT_FETCH;
static int anonymize;
+static struct hashmap anonymized_seeds;
static struct revision_sources revision_sources;
static int parse_opt_signed_tag_mode(const struct option *opt,
}
struct anonymized_entry {
+ struct hashmap_entry hash;
+ const char *anon;
+ const char orig[FLEX_ARRAY];
+};
+
+struct anonymized_entry_key {
struct hashmap_entry hash;
const char *orig;
size_t orig_len;
- const char *anon;
- size_t anon_len;
};
static int anonymized_entry_cmp(const void *unused_cmp_data,
const struct hashmap_entry *eptr,
const struct hashmap_entry *entry_or_key,
- const void *unused_keydata)
+ const void *keydata)
{
const struct anonymized_entry *a, *b;
a = container_of(eptr, const struct anonymized_entry, hash);
- b = container_of(entry_or_key, const struct anonymized_entry, hash);
+ if (keydata) {
+ const struct anonymized_entry_key *key = keydata;
+ int equal = !strncmp(a->orig, key->orig, key->orig_len) &&
+ !a->orig[key->orig_len];
+ return !equal;
+ }
- return a->orig_len != b->orig_len ||
- memcmp(a->orig, b->orig, a->orig_len);
+ b = container_of(entry_or_key, const struct anonymized_entry, hash);
+ return strcmp(a->orig, b->orig);
}
/*
* the same anonymized string with another. The actual generation
* is farmed out to the generate function.
*/
-static const void *anonymize_mem(struct hashmap *map,
- void *(*generate)(const void *, size_t *),
- const void *orig, size_t *len)
+static const char *anonymize_str(struct hashmap *map,
+ char *(*generate)(void *),
+ const char *orig, size_t len,
+ void *data)
{
- struct anonymized_entry key, *ret;
+ struct anonymized_entry_key key;
+ struct anonymized_entry *ret;
if (!map->cmpfn)
hashmap_init(map, anonymized_entry_cmp, NULL, 0);
- hashmap_entry_init(&key.hash, memhash(orig, *len));
+ hashmap_entry_init(&key.hash, memhash(orig, len));
key.orig = orig;
- key.orig_len = *len;
- ret = hashmap_get_entry(map, &key, hash, NULL);
+ key.orig_len = len;
+
+ /* First check if it's a token the user configured manually... */
+ if (anonymized_seeds.cmpfn)
+ ret = hashmap_get_entry(&anonymized_seeds, &key, hash, &key);
+ else
+ ret = NULL;
+
+ /* ...otherwise check if we've already seen it in this context... */
+ if (!ret)
+ ret = hashmap_get_entry(map, &key, hash, &key);
+ /* ...and finally generate a new mapping if necessary */
if (!ret) {
- ret = xmalloc(sizeof(*ret));
+ FLEX_ALLOC_MEM(ret, orig, orig, len);
hashmap_entry_init(&ret->hash, key.hash.hash);
- ret->orig = xstrdup(orig);
- ret->orig_len = *len;
- ret->anon = generate(orig, len);
- ret->anon_len = *len;
+ ret->anon = generate(data);
hashmap_put(map, &ret->hash);
}
- *len = ret->anon_len;
return ret->anon;
}
*/
static void anonymize_path(struct strbuf *out, const char *path,
struct hashmap *map,
- void *(*generate)(const void *, size_t *))
+ char *(*generate)(void *))
{
while (*path) {
const char *end_of_component = strchrnul(path, '/');
size_t len = end_of_component - path;
- const char *c = anonymize_mem(map, generate, path, &len);
- strbuf_add(out, c, len);
+ const char *c = anonymize_str(map, generate, path, len, NULL);
+ strbuf_addstr(out, c);
path = end_of_component;
if (*path)
strbuf_addch(out, *path++);
printf("%s", path);
}
-static void *anonymize_path_component(const void *path, size_t *len)
+static char *anonymize_path_component(void *data)
{
static int counter;
struct strbuf out = STRBUF_INIT;
strbuf_addf(&out, "path%d", counter++);
- return strbuf_detach(&out, len);
+ return strbuf_detach(&out, NULL);
}
static void print_path(const char *path)
}
}
-static void *generate_fake_oid(const void *old, size_t *len)
+static char *generate_fake_oid(void *data)
{
static uint32_t counter = 1; /* avoid null oid */
const unsigned hashsz = the_hash_algo->rawsz;
- unsigned char *out = xcalloc(hashsz, 1);
+ unsigned char out[GIT_MAX_RAWSZ];
+ char *hex = xmallocz(GIT_MAX_HEXSZ);
+
+ hashclr(out);
put_be32(out + hashsz - 4, counter++);
- return out;
+ return hash_to_hex_algop_r(hex, out, the_hash_algo);
}
-static const struct object_id *anonymize_oid(const struct object_id *oid)
+static const char *anonymize_oid(const char *oid_hex)
{
static struct hashmap objs;
- size_t len = the_hash_algo->rawsz;
- return anonymize_mem(&objs, generate_fake_oid, oid, &len);
+ size_t len = strlen(oid_hex);
+ return anonymize_str(&objs, generate_fake_oid, oid_hex, len, NULL);
}
static void show_filemodify(struct diff_queue_struct *q,
*/
if (no_data || S_ISGITLINK(spec->mode))
printf("M %06o %s ", spec->mode,
- oid_to_hex(anonymize ?
- anonymize_oid(&spec->oid) :
- &spec->oid));
+ anonymize ?
+ anonymize_oid(oid_to_hex(&spec->oid)) :
+ oid_to_hex(&spec->oid));
else {
struct object *object = lookup_object(the_repository,
&spec->oid);
return bol;
}
-static void *anonymize_ref_component(const void *old, size_t *len)
+static char *anonymize_ref_component(void *data)
{
static int counter;
struct strbuf out = STRBUF_INIT;
strbuf_addf(&out, "ref%d", counter++);
- return strbuf_detach(&out, len);
+ return strbuf_detach(&out, NULL);
}
static const char *anonymize_refname(const char *refname)
static struct strbuf anon = STRBUF_INIT;
int i;
- /*
- * We also leave "master" as a special case, since it does not reveal
- * anything interesting.
- */
- if (!strcmp(refname, "refs/heads/master"))
- return refname;
-
strbuf_reset(&anon);
for (i = 0; i < ARRAY_SIZE(prefixes); i++) {
if (skip_prefix(refname, prefixes[i], &refname)) {
return xstrfmt("subject %d\n\nbody\n", counter++);
}
-static struct hashmap idents;
-static void *anonymize_ident(const void *old, size_t *len)
+static char *anonymize_ident(void *data)
{
static int counter;
struct strbuf out = STRBUF_INIT;
strbuf_addf(&out, "User %d <user%d@example.com>", counter, counter);
counter++;
- return strbuf_detach(&out, len);
+ return strbuf_detach(&out, NULL);
}
/*
*/
static void anonymize_ident_line(const char **beg, const char **end)
{
+ static struct hashmap idents;
static struct strbuf buffers[] = { STRBUF_INIT, STRBUF_INIT };
static unsigned which_buffer;
size_t len;
len = split.mail_end - split.name_begin;
- ident = anonymize_mem(&idents, anonymize_ident,
- split.name_begin, &len);
- strbuf_add(out, ident, len);
+ ident = anonymize_str(&idents, anonymize_ident,
+ split.name_begin, len, NULL);
+ strbuf_addstr(out, ident);
strbuf_addch(out, ' ');
strbuf_add(out, split.date_begin, split.tz_end - split.date_begin);
} else {
if (mark)
printf(":%d\n", mark);
else
- printf("%s\n", oid_to_hex(anonymize ?
- anonymize_oid(&obj->oid) :
- &obj->oid));
+ printf("%s\n",
+ anonymize ?
+ anonymize_oid(oid_to_hex(&obj->oid)) :
+ oid_to_hex(&obj->oid));
i++;
}
show_progress();
}
-static void *anonymize_tag(const void *old, size_t *len)
+static char *anonymize_tag(void *data)
{
static int counter;
struct strbuf out = STRBUF_INIT;
strbuf_addf(&out, "tag message %d", counter++);
- return strbuf_detach(&out, len);
+ return strbuf_detach(&out, NULL);
}
static void handle_tail(struct object_array *commits, struct rev_info *revs,
name = anonymize_refname(name);
if (message) {
static struct hashmap tags;
- message = anonymize_mem(&tags, anonymize_tag,
- message, &message_size);
+ message = anonymize_str(&tags, anonymize_tag,
+ message, message_size, NULL);
}
}
}
}
+static char *anonymize_seed(void *data)
+{
+ return xstrdup(data);
+}
+
+static int parse_opt_anonymize_map(const struct option *opt,
+ const char *arg, int unset)
+{
+ struct hashmap *map = opt->value;
+ const char *delim, *value;
+ size_t keylen;
+
+ BUG_ON_OPT_NEG(unset);
+
+ delim = strchr(arg, ':');
+ if (delim) {
+ keylen = delim - arg;
+ value = delim + 1;
+ } else {
+ keylen = strlen(arg);
+ value = arg;
+ }
+
+ if (!keylen || !*value)
+ return error(_("--anonymize-map token cannot be empty"));
+
+ anonymize_str(map, anonymize_seed, arg, keylen, (void *)value);
+
+ return 0;
+}
+
int cmd_fast_export(int argc, const char **argv, const char *prefix)
{
struct rev_info revs;
OPT_STRING_LIST(0, "refspec", &refspecs_list, N_("refspec"),
N_("Apply refspec to exported refs")),
OPT_BOOL(0, "anonymize", &anonymize, N_("anonymize output")),
+ OPT_CALLBACK_F(0, "anonymize-map", &anonymized_seeds, N_("from:to"),
+ N_("convert <from> to <to> in anonymized output"),
+ PARSE_OPT_NONEG, parse_opt_anonymize_map),
OPT_BOOL(0, "reference-excluded-parents",
&reference_excluded_commits, N_("Reference parents which are not in fast-export stream by object id")),
OPT_BOOL(0, "show-original-ids", &show_original_ids,
if (argc > 1)
usage_with_options (fast_export_usage, options);
+ if (anonymized_seeds.cmpfn && !anonymize)
+ die(_("--anonymize-map without --anonymize does not make sense"));
+
if (refspecs_list.nr) {
int i;
projects / thirdparty / git.git / blobdiff