Merge pull request #7698 from apocelipes/fix-semver-exact-version-selection

fix(semver): correct version selection

1 files changed, 92 insertions, 28 deletions

diff --git a/core/src/xmake/semver/select.c b/core/src/xmake/semver/select.c
index 283afb050..e95840eab 100644
--- a/core/src/xmake/semver/select.c
+++ b/core/src/xmake/semver/select.c
@@ -33,6 +33,69 @@
 /* //////////////////////////////////////////////////////////////////////////////////////
  * private implementation
  */
+static tb_char_t const *xm_semver_skip_version_prefix(tb_char_t const *version_str, tb_size_t *version_len) {
+    if (*version_len && (version_str[0] == 'v' || version_str[0] == '=')) {
+        ++version_str;
+        --*version_len;
+    }
+    return version_str;
+}
+static tb_bool_t xm_semver_is_exact_version(
+    tb_char_t const *version_str, tb_size_t version_len, tb_bool_t *is_exact_with_build) {
+    *is_exact_with_build = tb_false;
+    version_str = xm_semver_skip_version_prefix(version_str, &version_len);
+    semver_t version = { 0 };
+    if (!semvern(&version, version_str, version_len)) {
+        *is_exact_with_build = version.build.len > 0;
+        semver_dtor(&version);
+        return tb_true;
+    }
+    return tb_false;
+}
+static tb_long_t xm_semver_compare_build(semver_id_t const *left, semver_id_t const *right) {
+    while (left && right && left->len && right->len) {
+        if (left->numeric && right->numeric) {
+            if (left->num != right->num) {
+                return left->num > right->num ? 1 : -1;
+            }
+        } else {
+            tb_size_t size = left->len < right->len ? left->len : right->len;
+            tb_long_t result = tb_memcmp(left->raw, right->raw, size);
+            if (result) {
+                return result;
+            }
+            if (left->len != right->len) {
+                return left->len > right->len ? 1 : -1;
+            }
+        }
+        left = left->next;
+        right = right->next;
+    }
+    if (left && left->len) {
+        return 1;
+    }
+    if (right && right->len) {
+        return -1;
+    }
+    return 0;
+}
+static tb_long_t xm_semver_compare_with_build(semver_t const *left, semver_t const *right) {
+    tb_long_t result = semver_pcmp(left, right);
+    // xmake-repo orders build metadata as package revisions
+    return result ? result : xm_semver_compare_build(&left->build, &right->build);
+}
+static semver_t const *xm_semvers_find_newest(semvers_t const *versions) {
+    tb_assert_and_check_return_val(versions && versions->length, tb_null);
+
+    semver_t const *newest = &versions->data[0];
+    tb_size_t i = 0;
+    for (i = 1; i < versions->length; ++i) {
+        if (xm_semver_compare_with_build(&versions->data[i], newest) > 0) {
+            newest = &versions->data[i];
+        }
+    }
+    return newest;
+}
 static tb_bool_t xm_semver_select_from_versions_tags1(
     lua_State *lua, tb_int_t fromidx, semver_t *semver, semver_range_t const *range, semvers_t *matches) {
     // clear matches
@@ -59,27 +122,24 @@ static tb_bool_t xm_semver_select_from_versions_tags1(
     // no matches?
     tb_check_return_val(matches->length, tb_false);
 
-    // sort matches
-    semvers_psort(matches);
-
     // get the newest version
-    semver_t top = semvers_ppop(matches);
+    semver_t const *top = xm_semvers_find_newest(matches);
     lua_createtable(lua, 0, 2);
 
     // return results
-    lua_pushstring(lua, top.raw);
+    lua_pushstring(lua, top->raw);
     lua_setfield(lua, -2, "version");
 
     lua_pushstring(lua, fromidx == 2 ? "version" : "tag");
     lua_setfield(lua, -2, "source");
 
-    // exit the popped semver
-    semver_dtor(&top);
-
     return tb_true;
 }
 static tb_bool_t xm_semver_select_from_versions_tags2(
-    lua_State *lua, tb_int_t fromidx, semver_t *semver, tb_char_t const *version_str, tb_size_t version_len) {
+    lua_State *lua, tb_int_t fromidx, tb_char_t const *version_str, tb_size_t version_len, tb_bool_t is_exact) {
+    if (is_exact) {
+        version_str = xm_semver_skip_version_prefix(version_str, &version_len);
+    }
     lua_Integer i = 0;
     luaL_checktype(lua, fromidx, LUA_TTABLE);
     for (i = lua_objlen(lua, fromidx); i > 0; --i) {
@@ -88,8 +148,14 @@ static tb_bool_t xm_semver_select_from_versions_tags2(
 
         tb_char_t const *source_str = luaL_checkstring(lua, -1);
         tb_size_t source_len = tb_strlen(source_str);
+        tb_size_t source_version_len = source_len;
+        tb_char_t const *source_version_str = source_str;
+        // ignore a leading v/= prefix when comparing exact versions
+        if (is_exact) {
+            source_version_str = xm_semver_skip_version_prefix(source_str, &source_version_len);
+        }
         lua_pop(lua, 1);
-        if (source_len == version_len && tb_strncmp(source_str, version_str, version_len) == 0) {
+        if (source_version_len == version_len && tb_strncmp(source_version_str, version_str, version_len) == 0) {
             lua_createtable(lua, 0, 2);
             lua_pushlstring(lua, source_str, source_len);
             lua_setfield(lua, -2, "version");
@@ -147,21 +213,17 @@ static tb_bool_t xm_semver_select_latest_from_versions_tags(lua_State *lua,
     }
     tb_check_return_val(matches->length, tb_false);
 
-    // sort matches
-    semvers_psort(matches);
-
     // get the newest match
-    semver_t top = semvers_ppop(matches);
+    semver_t const *top = xm_semvers_find_newest(matches);
     lua_createtable(lua, 0, 2);
 
     // return results
-    lua_pushstring(lua, top.raw);
+    lua_pushstring(lua, top->raw);
     lua_setfield(lua, -2, "version");
 
     lua_pushstring(lua, fromidx == 2 ? "version" : "tag");
     lua_setfield(lua, -2, "source");
 
-    semver_dtor(&top);
     return tb_true;
 }
 
@@ -179,6 +241,8 @@ tb_int_t xm_semver_select(lua_State *lua) {
     // select version
     tb_bool_t ok = tb_false;
     tb_bool_t is_range = tb_false;
+    tb_bool_t is_exact = tb_false;
+    tb_bool_t is_exact_with_build = tb_false;
     tb_char_t const *range_str = tb_null;
     semver_t semver = { 0 };
     semvers_t matches = { 0 };
@@ -193,27 +257,27 @@ tb_int_t xm_semver_select(lua_State *lua) {
 
         // parse the version range string
         is_range = semver_rangen(&range, range_str, range_len) == 0;
-        if (is_range) {
-            // attempt to select version from the versions list first
-            if (xm_semver_select_from_versions_tags1(lua, 2, &semver, &range, &matches)) {
+        is_exact = xm_semver_is_exact_version(range_str, range_len, &is_exact_with_build);
+
+        // matching order: versions exact -> tags exact -> versions range -> tags range
+        if (is_exact || !is_range) {
+            if (xm_semver_select_from_versions_tags2(lua, 2, range_str, range_len, is_exact)) {
                 ok = tb_true;
                 break;
             }
-
-            // attempt to select version from the tags list
-            if (xm_semver_select_from_versions_tags1(lua, 3, &semver, &range, &matches)) {
+            if (xm_semver_select_from_versions_tags2(lua, 3, range_str, range_len, is_exact)) {
                 ok = tb_true;
                 break;
             }
-        } else {
-            // attempt to select version from the versions list first
-            if (xm_semver_select_from_versions_tags2(lua, 2, &semver, range_str, range_len)) {
+        }
+
+        // a build-qualified exact version identifies a specific package revision
+        if (is_range && !is_exact_with_build) {
+            if (xm_semver_select_from_versions_tags1(lua, 2, &semver, &range, &matches)) {
                 ok = tb_true;
                 break;
             }
-
-            // attempt to select version from the tags list
-            if (xm_semver_select_from_versions_tags2(lua, 3, &semver, range_str, range_len)) {
+            if (xm_semver_select_from_versions_tags1(lua, 3, &semver, &range, &matches)) {
                 ok = tb_true;
                 break;
             }