Add sqlite3.version object. Add more state to the Worker #1 config-get response, including sqlite3.version.

FossilOrigin-Name: 711f458d188a0dbe6612069c856ade29323ab426dfa4f80e7b82757ccc474cb8

ext/wasm/api/sqlite3-api-glue.js

@@ -202,4 +202,9 @@ self.sqlite3ApiBootstrap.initializers.push(function(sqlite3){
       capi[s.name] = sqlite3.StructBinder(s);
     }
   }/*end C constant imports*/
+
+  sqlite3.version = Object.assign(Object.create(null),{
+    library: sqlite3.capi.sqlite3_libversion(),
+    sourceId: sqlite3.capi.sqlite3_sourceid()
+  });
 });

ext/wasm/api/sqlite3-api-prologue.js

@@ -927,13 +927,16 @@ self.sqlite3ApiBootstrap = function sqlite3ApiBootstrap(
        subsequent calls are no-ops which return a pre-resolved
        Promise.
 
-       If called at all, this function must be called by client-level
+       Ideally this function is called as part of the Promise chain
-       code, which must not use the library until the returned promise
+       which handles the loading and bootstrapping of the API.  If not
-       resolves.
+       then it must be called by client-level code, which must not use
+       the library until the returned promise resolves.
 
        Bug: if called while a prior call is still resolving, the 2nd
        call will resolve prematurely, before the 1st call has finished
-       resolving.
+       resolving. The current build setup precludes that possibility,
+       so it's only a hypothetical problem if/when this function
+       ever needs to be invoked by clients.
 
        In Emscripten-based builds, this function is called
        automatically and deleted from this object.

ext/wasm/api/sqlite3-api-worker1.js

@@ -154,15 +154,20 @@
     messageId: ...as above...,
     result: {
 
-      wasmfsOpfsDir: path prefix, if any, of persistent storage.
+      version: sqlite3.version object
-      An empty string denotes that no persistent storage is available.
 
       bigIntEnabled: bool. True if BigInt support is enabled.
 
-      wasmfsOpfsEnabled: true if persistent storage is enabled in the
+      wasmfsOpfsDir: path prefix, if any, _intended_ for use with
-      current environment. Only files stored under persistentDirName
+      OPFS persistent storage.
-      will persist, however.
 
+      wasmfsOpfsEnabled: true if persistent storage is enabled in the
+      current environment. Only files stored under wasmfsOpfsDir
+      will persist using that mechanism, however. It is legal to use
+      the non-WASMFS OPFS VFS to open a database via a URI-style
+      db filename.
+
+      vfses: result of sqlite3.capi.sqlite3_web_vfs_list()
    }
   }
   ```
@@ -180,7 +185,8 @@
     args:{
 
       filename [=":memory:" or "" (unspecified)]: the db filename.
-      See the sqlite3.oo1.DB constructor for peculiarities and transformations,
+      See the sqlite3.oo1.DB constructor for peculiarities and
+      transformations,
 
       persistent [=false]: if true and filename is not one of ("",
       ":memory:"), prepend sqlite3.capi.sqlite3_wasmfs_opfs_dir()
@@ -188,6 +194,9 @@
       _if_ the environment supports it.  If persistent storage is not
       supported, the filename is used as-is.
 
+      // TODO?: ^^^^ maybe rework that, now that we have the non-WASMFS
+      // OFPS.
+
     }
   }
   ```
@@ -211,6 +220,7 @@
       persistent: true if the given filename resides in the
       known-persistent storage, else false. This determination is
       independent of the `persistent` input argument.
+
    }
   }
   ```
@@ -448,7 +458,8 @@ sqlite3.initWorker1API = function(){
       }
       const db = wState.open(oargs);
       rc.filename = db.filename;
-      rc.persistent = !!pDir && db.filename.startsWith(pDir);
+      rc.persistent = (!!pDir && db.filename.startsWith(pDir))
+        || sqlite3.capi.sqlite3_web_db_uses_vfs(db.pointer, "opfs");
       rc.dbId = getDbId(db);
       return rc;
     },
@@ -526,6 +537,8 @@ sqlite3.initWorker1API = function(){
         if(Object.getOwnPropertyDescriptor(src, k)) rc[k] = src[k];
       });
       rc.wasmfsOpfsEnabled = !!sqlite3.capi.sqlite3_wasmfs_opfs_dir();
+      rc.version = sqlite3.version;
+      rc.vfses = sqlite3.capi.sqlite3_web_vfs_list();
       return rc;
     },
 
@@ -542,12 +555,10 @@ sqlite3.initWorker1API = function(){
          mimetype: 'application/x-sqlite3'
        }
 
-       TODO is to determine how/whether this feature can support
+       2022-09-30: we have shell.c:fiddle_export_db() which works fine
-       exports of ":memory:" and "" (temp file) DBs. The latter is
+       for disk-based databases (even if it's a virtual disk like an
-       ostensibly easy because the file is (potentially) on disk, but
+       Emscripten VFS). sqlite3_serialize() can return this for
-       the former does not have a structure which maps directly to a
+       :memory: and temp databases.
-       db file image. We can VACUUM INTO a :memory:/temp db into a
-       file for that purpose, though.
     */
     export: function(ev){
       toss("export() requires reimplementing for portability reasons.");

manifest

@@ -1,5 +1,5 @@
-C Add\soo1.JsStorageDb.clearStorage/storageSize()\smethods,\scopies\sof\scapi.sqlite3_web_kvvfs_clear/size().
+C Add\ssqlite3.version\sobject.\sAdd\smore\sstate\sto\sthe\sWorker\s#1\sconfig-get\sresponse,\sincluding\ssqlite3.version.
-D 2022-09-30T15:46:08.196
+D 2022-09-30T16:49:03.804
 F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
 F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
 F LICENSE.md df5091916dbb40e6e9686186587125e1b2ff51f022cc334e886c19a0e9982724
@@ -485,11 +485,11 @@ F ext/wasm/api/post-js-footer.js b64319261d920211b8700004d08b956a6c285f3b0bba814
 F ext/wasm/api/post-js-header.js 2e5c886398013ba2af88028ecbced1e4b22dc96a86467f1ecc5ba9e64ef90a8b
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 F ext/wasm/api/sqlite3-api-cleanup.js 98905936119a555659b5cf43844211809ab9f436c52a569004e5585d2842b5c2
-F ext/wasm/api/sqlite3-api-glue.js 81b06946223181727b9a1d731b4f3c2ba97a33ae43bc0bbda7e8fa02400a207e
+F ext/wasm/api/sqlite3-api-glue.js 90206acd5cf556bd8a7a9275619aa680c9075ad8072ed1e18f47fc1d5cfbcf26
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-F ext/wasm/api/sqlite3-api-prologue.js 304e883ff1b06f668ebb7bbdc80152b0a9f395bbd34acfd5f7a8ef84e8f17466
+F ext/wasm/api/sqlite3-api-prologue.js 3a93497a9bc542c7202f32063cd070aa9c4cd03171a5e354cf99dd4357585b7a
-F ext/wasm/api/sqlite3-api-worker1.js d5d5b7fac4c4731c38c7e03f4f404b2a95c388a2a1d8bcf361caada572f107e0
+F ext/wasm/api/sqlite3-api-worker1.js 2e8a037a76d20c7653e5a392d9830f17a22ce6736ffd0597aa39b69d1c01ad2c
 F ext/wasm/api/sqlite3-wasi.h 25356084cfe0d40458a902afb465df8c21fc4152c1d0a59b563a3fba59a068f9
 F ext/wasm/api/sqlite3-wasm.c 336389b23c9b83763177499e49a0967949c392b2f7d84fbbb52ad6678e159f18
 F ext/wasm/batch-runner.html c363032aba7a525920f61f8be112a29459f73f07e46f0ba3b7730081a617826e
@@ -2029,8 +2029,8 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
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+R 4c776ad1a7aec6f0bcde0b14554ad6b2
 U stephan
-Z 221cd5b9b95b0e9d6b36653a70003bd2
+Z 125edfcbc5b4725eac67cee184f7f0b1
 # Remove this line to create a well-formed Fossil manifest.

manifest.uuid

@@ -1 +1 @@
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+711f458d188a0dbe6612069c856ade29323ab426dfa4f80e7b82757ccc474cb8