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Diffstat (limited to 'sha1_name.c')
-rw-r--r--sha1_name.c227
1 files changed, 117 insertions, 110 deletions
diff --git a/sha1_name.c b/sha1_name.c
index 73a915ff1b..389276e9d3 100644
--- a/sha1_name.c
+++ b/sha1_name.c
@@ -11,16 +11,16 @@
static int get_sha1_oneline(const char *, unsigned char *, struct commit_list *);
-typedef int (*disambiguate_hint_fn)(const unsigned char *, void *);
+typedef int (*disambiguate_hint_fn)(const struct object_id *, void *);
struct disambiguate_state {
int len; /* length of prefix in hex chars */
- char hex_pfx[GIT_SHA1_HEXSZ + 1];
- unsigned char bin_pfx[GIT_SHA1_RAWSZ];
+ char hex_pfx[GIT_MAX_HEXSZ + 1];
+ struct object_id bin_pfx;
disambiguate_hint_fn fn;
void *cb_data;
- unsigned char candidate[GIT_SHA1_RAWSZ];
+ struct object_id candidate;
unsigned candidate_exists:1;
unsigned candidate_checked:1;
unsigned candidate_ok:1;
@@ -29,7 +29,7 @@ struct disambiguate_state {
unsigned always_call_fn:1;
};
-static void update_candidates(struct disambiguate_state *ds, const unsigned char *current)
+static void update_candidates(struct disambiguate_state *ds, const struct object_id *current)
{
if (ds->always_call_fn) {
ds->ambiguous = ds->fn(current, ds->cb_data) ? 1 : 0;
@@ -37,10 +37,10 @@ static void update_candidates(struct disambiguate_state *ds, const unsigned char
}
if (!ds->candidate_exists) {
/* this is the first candidate */
- hashcpy(ds->candidate, current);
+ oidcpy(&ds->candidate, current);
ds->candidate_exists = 1;
return;
- } else if (!hashcmp(ds->candidate, current)) {
+ } else if (!oidcmp(&ds->candidate, current)) {
/* the same as what we already have seen */
return;
}
@@ -52,14 +52,14 @@ static void update_candidates(struct disambiguate_state *ds, const unsigned char
}
if (!ds->candidate_checked) {
- ds->candidate_ok = ds->fn(ds->candidate, ds->cb_data);
+ ds->candidate_ok = ds->fn(&ds->candidate, ds->cb_data);
ds->disambiguate_fn_used = 1;
ds->candidate_checked = 1;
}
if (!ds->candidate_ok) {
/* discard the candidate; we know it does not satisfy fn */
- hashcpy(ds->candidate, current);
+ oidcpy(&ds->candidate, current);
ds->candidate_checked = 0;
return;
}
@@ -80,7 +80,7 @@ static void update_candidates(struct disambiguate_state *ds, const unsigned char
static void find_short_object_filename(struct disambiguate_state *ds)
{
struct alternate_object_database *alt;
- char hex[GIT_SHA1_HEXSZ];
+ char hex[GIT_MAX_HEXSZ];
static struct alternate_object_database *fakeent;
if (!fakeent) {
@@ -107,15 +107,15 @@ static void find_short_object_filename(struct disambiguate_state *ds)
continue;
while (!ds->ambiguous && (de = readdir(dir)) != NULL) {
- unsigned char sha1[20];
+ struct object_id oid;
- if (strlen(de->d_name) != 38)
+ if (strlen(de->d_name) != GIT_SHA1_HEXSZ - 2)
continue;
if (memcmp(de->d_name, ds->hex_pfx + 2, ds->len - 2))
continue;
- memcpy(hex + 2, de->d_name, 38);
- if (!get_sha1_hex(hex, sha1))
- update_candidates(ds, sha1);
+ memcpy(hex + 2, de->d_name, GIT_SHA1_HEXSZ - 2);
+ if (!get_oid_hex(hex, &oid))
+ update_candidates(ds, &oid);
}
closedir(dir);
}
@@ -140,7 +140,7 @@ static void unique_in_pack(struct packed_git *p,
struct disambiguate_state *ds)
{
uint32_t num, last, i, first = 0;
- const unsigned char *current = NULL;
+ const struct object_id *current = NULL;
open_pack_index(p);
num = p->num_objects;
@@ -151,7 +151,7 @@ static void unique_in_pack(struct packed_git *p,
int cmp;
current = nth_packed_object_sha1(p, mid);
- cmp = hashcmp(ds->bin_pfx, current);
+ cmp = hashcmp(ds->bin_pfx.hash, current);
if (!cmp) {
first = mid;
break;
@@ -169,8 +169,9 @@ static void unique_in_pack(struct packed_git *p,
* 0, 1 or more objects that actually match(es).
*/
for (i = first; i < num && !ds->ambiguous; i++) {
- current = nth_packed_object_sha1(p, i);
- if (!match_sha(ds->len, ds->bin_pfx, current))
+ struct object_id oid;
+ current = nth_packed_object_oid(&oid, p, i);
+ if (!match_sha(ds->len, ds->bin_pfx.hash, current->hash))
break;
update_candidates(ds, current);
}
@@ -213,66 +214,66 @@ static int finish_object_disambiguation(struct disambiguate_state *ds,
* same repository!
*/
ds->candidate_ok = (!ds->disambiguate_fn_used ||
- ds->fn(ds->candidate, ds->cb_data));
+ ds->fn(&ds->candidate, ds->cb_data));
if (!ds->candidate_ok)
return SHORT_NAME_AMBIGUOUS;
- hashcpy(sha1, ds->candidate);
+ hashcpy(sha1, ds->candidate.hash);
return 0;
}
-static int disambiguate_commit_only(const unsigned char *sha1, void *cb_data_unused)
+static int disambiguate_commit_only(const struct object_id *oid, void *cb_data_unused)
{
- int kind = sha1_object_info(sha1, NULL);
+ int kind = sha1_object_info(oid->hash, NULL);
return kind == OBJ_COMMIT;
}
-static int disambiguate_committish_only(const unsigned char *sha1, void *cb_data_unused)
+static int disambiguate_committish_only(const struct object_id *oid, void *cb_data_unused)
{
struct object *obj;
int kind;
- kind = sha1_object_info(sha1, NULL);
+ kind = sha1_object_info(oid->hash, NULL);
if (kind == OBJ_COMMIT)
return 1;
if (kind != OBJ_TAG)
return 0;
/* We need to do this the hard way... */
- obj = deref_tag(parse_object(sha1), NULL, 0);
+ obj = deref_tag(parse_object(oid), NULL, 0);
if (obj && obj->type == OBJ_COMMIT)
return 1;
return 0;
}
-static int disambiguate_tree_only(const unsigned char *sha1, void *cb_data_unused)
+static int disambiguate_tree_only(const struct object_id *oid, void *cb_data_unused)
{
- int kind = sha1_object_info(sha1, NULL);
+ int kind = sha1_object_info(oid->hash, NULL);
return kind == OBJ_TREE;
}
-static int disambiguate_treeish_only(const unsigned char *sha1, void *cb_data_unused)
+static int disambiguate_treeish_only(const struct object_id *oid, void *cb_data_unused)
{
struct object *obj;
int kind;
- kind = sha1_object_info(sha1, NULL);
+ kind = sha1_object_info(oid->hash, NULL);
if (kind == OBJ_TREE || kind == OBJ_COMMIT)
return 1;
if (kind != OBJ_TAG)
return 0;
/* We need to do this the hard way... */
- obj = deref_tag(parse_object(sha1), NULL, 0);
+ obj = deref_tag(parse_object(oid), NULL, 0);
if (obj && (obj->type == OBJ_TREE || obj->type == OBJ_COMMIT))
return 1;
return 0;
}
-static int disambiguate_blob_only(const unsigned char *sha1, void *cb_data_unused)
+static int disambiguate_blob_only(const struct object_id *oid, void *cb_data_unused)
{
- int kind = sha1_object_info(sha1, NULL);
+ int kind = sha1_object_info(oid->hash, NULL);
return kind == OBJ_BLOB;
}
@@ -332,7 +333,7 @@ static int init_object_disambiguation(const char *name, int len,
ds->hex_pfx[i] = c;
if (!(i & 1))
val <<= 4;
- ds->bin_pfx[i >> 1] |= val;
+ ds->bin_pfx.hash[i >> 1] |= val;
}
ds->len = len;
@@ -341,31 +342,32 @@ static int init_object_disambiguation(const char *name, int len,
return 0;
}
-static int show_ambiguous_object(const unsigned char *sha1, void *data)
+static int show_ambiguous_object(const struct object_id *oid, void *data)
{
const struct disambiguate_state *ds = data;
struct strbuf desc = STRBUF_INIT;
int type;
- if (ds->fn && !ds->fn(sha1, ds->cb_data))
+
+ if (ds->fn && !ds->fn(oid, ds->cb_data))
return 0;
- type = sha1_object_info(sha1, NULL);
+ type = sha1_object_info(oid->hash, NULL);
if (type == OBJ_COMMIT) {
- struct commit *commit = lookup_commit(sha1);
+ struct commit *commit = lookup_commit(oid);
if (commit) {
struct pretty_print_context pp = {0};
pp.date_mode.type = DATE_SHORT;
format_commit_message(commit, " %ad - %s", &desc, &pp);
}
} else if (type == OBJ_TAG) {
- struct tag *tag = lookup_tag(sha1);
+ struct tag *tag = lookup_tag(oid);
if (!parse_tag(tag) && tag->tag)
strbuf_addf(&desc, " %s", tag->tag);
}
advise(" %s %s%s",
- find_unique_abbrev(sha1, DEFAULT_ABBREV),
+ find_unique_abbrev(oid->hash, DEFAULT_ABBREV),
typename(type) ? typename(type) : "unknown type",
desc.buf);
@@ -422,15 +424,15 @@ static int get_short_sha1(const char *name, int len, unsigned char *sha1,
return status;
}
-static int collect_ambiguous(const unsigned char *sha1, void *data)
+static int collect_ambiguous(const struct object_id *oid, void *data)
{
- sha1_array_append(data, sha1);
+ oid_array_append(data, oid);
return 0;
}
int for_each_abbrev(const char *prefix, each_abbrev_fn fn, void *cb_data)
{
- struct sha1_array collect = SHA1_ARRAY_INIT;
+ struct oid_array collect = OID_ARRAY_INIT;
struct disambiguate_state ds;
int ret;
@@ -443,8 +445,8 @@ int for_each_abbrev(const char *prefix, each_abbrev_fn fn, void *cb_data)
find_short_object_filename(&ds);
find_short_packed_object(&ds);
- ret = sha1_array_for_each_unique(&collect, fn, cb_data);
- sha1_array_clear(&collect);
+ ret = oid_array_for_each_unique(&collect, fn, cb_data);
+ oid_array_clear(&collect);
return ret;
}
@@ -509,7 +511,7 @@ int find_unique_abbrev_r(char *hex, const unsigned char *sha1, int len)
const char *find_unique_abbrev(const unsigned char *sha1, int len)
{
static int bufno;
- static char hexbuffer[4][GIT_SHA1_HEXSZ + 1];
+ static char hexbuffer[4][GIT_MAX_HEXSZ + 1];
char *hex = hexbuffer[bufno];
bufno = (bufno + 1) % ARRAY_SIZE(hexbuffer);
find_unique_abbrev_r(hex, sha1, len);
@@ -549,7 +551,7 @@ static inline int at_mark(const char *string, int len,
for (i = 0; i < nr; i++) {
int suffix_len = strlen(suffix[i]);
if (suffix_len <= len
- && !memcmp(string, suffix[i], suffix_len))
+ && !strncasecmp(string, suffix[i], suffix_len))
return suffix_len;
}
return 0;
@@ -658,8 +660,8 @@ static int get_sha1_basic(const char *str, int len, unsigned char *sha1,
if (reflog_len) {
int nth, i;
- unsigned long at_time;
- unsigned long co_time;
+ timestamp_t at_time;
+ timestamp_t co_time;
int co_tz, co_cnt;
/* Is it asking for N-th entry, or approxidate? */
@@ -720,14 +722,14 @@ static int get_sha1_basic(const char *str, int len, unsigned char *sha1,
static int get_parent(const char *name, int len,
unsigned char *result, int idx)
{
- unsigned char sha1[20];
- int ret = get_sha1_1(name, len, sha1, GET_SHA1_COMMITTISH);
+ struct object_id oid;
+ int ret = get_sha1_1(name, len, oid.hash, GET_SHA1_COMMITTISH);
struct commit *commit;
struct commit_list *p;
if (ret)
return ret;
- commit = lookup_commit_reference(sha1);
+ commit = lookup_commit_reference(&oid);
if (parse_commit(commit))
return -1;
if (!idx) {
@@ -748,14 +750,14 @@ static int get_parent(const char *name, int len,
static int get_nth_ancestor(const char *name, int len,
unsigned char *result, int generation)
{
- unsigned char sha1[20];
+ struct object_id oid;
struct commit *commit;
int ret;
- ret = get_sha1_1(name, len, sha1, GET_SHA1_COMMITTISH);
+ ret = get_sha1_1(name, len, oid.hash, GET_SHA1_COMMITTISH);
if (ret)
return ret;
- commit = lookup_commit_reference(sha1);
+ commit = lookup_commit_reference(&oid);
if (!commit)
return -1;
@@ -774,7 +776,7 @@ struct object *peel_to_type(const char *name, int namelen,
if (name && !namelen)
namelen = strlen(name);
while (1) {
- if (!o || (!o->parsed && !parse_object(o->oid.hash)))
+ if (!o || (!o->parsed && !parse_object(&o->oid)))
return NULL;
if (expected_type == OBJ_ANY || o->type == expected_type)
return o;
@@ -796,7 +798,7 @@ struct object *peel_to_type(const char *name, int namelen,
static int peel_onion(const char *name, int len, unsigned char *sha1,
unsigned lookup_flags)
{
- unsigned char outer[20];
+ struct object_id outer;
const char *sp;
unsigned int expected_type = 0;
struct object *o;
@@ -844,15 +846,15 @@ static int peel_onion(const char *name, int len, unsigned char *sha1,
else if (expected_type == OBJ_TREE)
lookup_flags |= GET_SHA1_TREEISH;
- if (get_sha1_1(name, sp - name - 2, outer, lookup_flags))
+ if (get_sha1_1(name, sp - name - 2, outer.hash, lookup_flags))
return -1;
- o = parse_object(outer);
+ o = parse_object(&outer);
if (!o)
return -1;
if (!expected_type) {
o = deref_tag(o, name, sp - name - 2);
- if (!o || (!o->parsed && !parse_object(o->oid.hash)))
+ if (!o || (!o->parsed && !parse_object(&o->oid)))
return -1;
hashcpy(sha1, o->oid.hash);
return 0;
@@ -979,7 +981,7 @@ static int handle_one_ref(const char *path, const struct object_id *oid,
int flag, void *cb_data)
{
struct commit_list **list = cb_data;
- struct object *object = parse_object(oid->hash);
+ struct object *object = parse_object(oid);
if (!object)
return 0;
if (object->type == OBJ_TAG) {
@@ -1025,7 +1027,7 @@ static int get_sha1_oneline(const char *prefix, unsigned char *sha1,
int matches;
commit = pop_most_recent_commit(&list, ONELINE_SEEN);
- if (!parse_object(commit->object.oid.hash))
+ if (!parse_object(&commit->object.oid))
continue;
buf = get_commit_buffer(commit, NULL);
p = strstr(buf, "\n\n");
@@ -1051,8 +1053,8 @@ struct grab_nth_branch_switch_cbdata {
struct strbuf buf;
};
-static int grab_nth_branch_switch(unsigned char *osha1, unsigned char *nsha1,
- const char *email, unsigned long timestamp, int tz,
+static int grab_nth_branch_switch(struct object_id *ooid, struct object_id *noid,
+ const char *email, timestamp_t timestamp, int tz,
const char *message, void *cb_data)
{
struct grab_nth_branch_switch_cbdata *cb = cb_data;
@@ -1134,13 +1136,13 @@ int get_oid_mb(const char *name, struct object_id *oid)
}
if (st)
return st;
- one = lookup_commit_reference_gently(oid_tmp.hash, 0);
+ one = lookup_commit_reference_gently(&oid_tmp, 0);
if (!one)
return -1;
if (get_sha1_committish(dots[3] ? (dots + 3) : "HEAD", oid_tmp.hash))
return -1;
- two = lookup_commit_reference_gently(oid_tmp.hash, 0);
+ two = lookup_commit_reference_gently(&oid_tmp, 0);
if (!two)
return -1;
mbs = get_merge_bases(one, two);
@@ -1176,7 +1178,8 @@ static int interpret_empty_at(const char *name, int namelen, int len, struct str
return 1;
}
-static int reinterpret(const char *name, int namelen, int len, struct strbuf *buf)
+static int reinterpret(const char *name, int namelen, int len,
+ struct strbuf *buf, unsigned allowed)
{
/* we have extra data, which might need further processing */
struct strbuf tmp = STRBUF_INIT;
@@ -1184,7 +1187,7 @@ static int reinterpret(const char *name, int namelen, int len, struct strbuf *bu
int ret;
strbuf_add(buf, name + len, namelen - len);
- ret = interpret_branch_name(buf->buf, buf->len, &tmp);
+ ret = interpret_branch_name(buf->buf, buf->len, &tmp, allowed);
/* that data was not interpreted, remove our cruft */
if (ret < 0) {
strbuf_setlen(buf, used);
@@ -1205,11 +1208,27 @@ static void set_shortened_ref(struct strbuf *buf, const char *ref)
free(s);
}
+static int branch_interpret_allowed(const char *refname, unsigned allowed)
+{
+ if (!allowed)
+ return 1;
+
+ if ((allowed & INTERPRET_BRANCH_LOCAL) &&
+ starts_with(refname, "refs/heads/"))
+ return 1;
+ if ((allowed & INTERPRET_BRANCH_REMOTE) &&
+ starts_with(refname, "refs/remotes/"))
+ return 1;
+
+ return 0;
+}
+
static int interpret_branch_mark(const char *name, int namelen,
int at, struct strbuf *buf,
int (*get_mark)(const char *, int),
const char *(*get_data)(struct branch *,
- struct strbuf *))
+ struct strbuf *),
+ unsigned allowed)
{
int len;
struct branch *branch;
@@ -1234,64 +1253,55 @@ static int interpret_branch_mark(const char *name, int namelen,
if (!value)
die("%s", err.buf);
+ if (!branch_interpret_allowed(value, allowed))
+ return -1;
+
set_shortened_ref(buf, value);
return len + at;
}
-/*
- * This reads short-hand syntax that not only evaluates to a commit
- * object name, but also can act as if the end user spelled the name
- * of the branch from the command line.
- *
- * - "@{-N}" finds the name of the Nth previous branch we were on, and
- * places the name of the branch in the given buf and returns the
- * number of characters parsed if successful.
- *
- * - "<branch>@{upstream}" finds the name of the other ref that
- * <branch> is configured to merge with (missing <branch> defaults
- * to the current branch), and places the name of the branch in the
- * given buf and returns the number of characters parsed if
- * successful.
- *
- * If the input is not of the accepted format, it returns a negative
- * number to signal an error.
- *
- * If the input was ok but there are not N branch switches in the
- * reflog, it returns 0.
- */
-int interpret_branch_name(const char *name, int namelen, struct strbuf *buf)
+int interpret_branch_name(const char *name, int namelen, struct strbuf *buf,
+ unsigned allowed)
{
char *at;
const char *start;
- int len = interpret_nth_prior_checkout(name, namelen, buf);
+ int len;
if (!namelen)
namelen = strlen(name);
- if (!len) {
- return len; /* syntax Ok, not enough switches */
- } else if (len > 0) {
- if (len == namelen)
- return len; /* consumed all */
- else
- return reinterpret(name, namelen, len, buf);
+ if (!allowed || (allowed & INTERPRET_BRANCH_LOCAL)) {
+ len = interpret_nth_prior_checkout(name, namelen, buf);
+ if (!len) {
+ return len; /* syntax Ok, not enough switches */
+ } else if (len > 0) {
+ if (len == namelen)
+ return len; /* consumed all */
+ else
+ return reinterpret(name, namelen, len, buf, allowed);
+ }
}
for (start = name;
(at = memchr(start, '@', namelen - (start - name)));
start = at + 1) {
- len = interpret_empty_at(name, namelen, at - name, buf);
- if (len > 0)
- return reinterpret(name, namelen, len, buf);
+ if (!allowed || (allowed & INTERPRET_BRANCH_HEAD)) {
+ len = interpret_empty_at(name, namelen, at - name, buf);
+ if (len > 0)
+ return reinterpret(name, namelen, len, buf,
+ allowed);
+ }
len = interpret_branch_mark(name, namelen, at - name, buf,
- upstream_mark, branch_get_upstream);
+ upstream_mark, branch_get_upstream,
+ allowed);
if (len > 0)
return len;
len = interpret_branch_mark(name, namelen, at - name, buf,
- push_mark, branch_get_push);
+ push_mark, branch_get_push,
+ allowed);
if (len > 0)
return len;
}
@@ -1299,22 +1309,19 @@ int interpret_branch_name(const char *name, int namelen, struct strbuf *buf)
return -1;
}
-int strbuf_branchname(struct strbuf *sb, const char *name)
+void strbuf_branchname(struct strbuf *sb, const char *name, unsigned allowed)
{
int len = strlen(name);
- int used = interpret_branch_name(name, len, sb);
+ int used = interpret_branch_name(name, len, sb, allowed);
- if (used == len)
- return 0;
if (used < 0)
used = 0;
strbuf_add(sb, name + used, len - used);
- return len;
}
int strbuf_check_branch_ref(struct strbuf *sb, const char *name)
{
- strbuf_branchname(sb, name);
+ strbuf_branchname(sb, name, INTERPRET_BRANCH_LOCAL);
if (name[0] == '-')
return -1;
strbuf_splice(sb, 0, 0, "refs/heads/", 11);
generated by cgit v1.2.3 (git 2.25.1) at 2025-01-10 05:28:10 +0000