Generated v2 prefixes

.github/workflows/release.yml

@@ -81,7 +81,9 @@ jobs:
       - name: find-prev-version
         continue-on-error: true
         run: |
-          LFS2_PREV_VERSION="$(git describe --tags --abbrev=0 --match 'v*')"
+          LFS2_PREV_VERSION="$( \
+            git describe --tags --abbrev=0 --match 'v*' \
+            || true)"
           echo "LFS2_PREV_VERSION=$LFS2_PREV_VERSION"
           echo "LFS2_PREV_VERSION=$LFS2_PREV_VERSION" >> $GITHUB_ENV
 
@@ -240,6 +242,7 @@ jobs:
         run: |
           # create release and patch version tag (vN.N.N)
           # only draft if not a patch release
+          touch release.txt
           [ -e table.txt ] && cat table.txt >> release.txt
           echo >> release.txt
           [ -e changes.txt ] && cat changes.txt >> release.txt

lfs2.c

@@ -877,7 +877,7 @@ static int lfs2_dir_traverse(lfs2_t *lfs2,
     // iterate over directory and attrs
     lfs2_tag_t tag;
     const void *buffer;
-    struct lfs2_diskoff disk;
+    struct lfs2_diskoff disk = {0};
     while (true) {
         {
             if (off+lfs2_tag_dsize(ptag) < dir->off) {
@@ -1628,7 +1628,7 @@ static int lfs2_dir_commitcrc(lfs2_t *lfs2, struct lfs2_commit *commit) {
         }
 
         // space for fcrc?
-        uint8_t eperturb = -1;
+        uint8_t eperturb = (uint8_t)-1;
         if (noff >= end && noff <= lfs2->cfg->block_size - lfs2->cfg->prog_size) {
             // first read the leading byte, this always contains a bit
             // we can perturb to avoid writes that don't change the fcrc