tooling(restep): fixes

sync.py

@@ -239,6 +239,9 @@ def generate_sotaignore(large_files: list[Path]) -> None:
             "# .sotaignore file generated by sota staircase ReStepper",
         )
 
+    if new_sotaignore == []:
+        return
+
     REPO_SOTAIGNORE.touch(exist_ok=True)
     REPO_SOTAIGNORE.write_text("\n".join(new_sotaignore) + "\n", encoding="utf-8")
 
@@ -254,13 +257,7 @@ def rewrite_gitattributes(target_dir: Path) -> None:
 
     # recursively search for .gitattributes files
     for repo_file in target_dir.rglob(".gitattributes"):
-        # print(repo_file)
+        repo_file.write_text(NEUTERED_GITATTRIBUTES, encoding="utf-8")
-        try:
-            repo_file.write_text(NEUTERED_GITATTRIBUTES, encoding="utf-8")
-        except Exception as exc:
-            print(f"error writing to {repo_file}: {exc} ({exc.__class__.__name__})")
-        else:
-            print(f"success to {repo_file}")
 
 
 # helper function for running steps
@@ -472,6 +469,7 @@ def main() -> None:
                 f"critical error (whuh? internal?): not inside the temp dir '{str(Path(dir_temp).absolute())}'"
             )
 
+        # check for forge and github remotes
         step(
             func=cmd("git remote -v"),
             post_func=post_remote_v,
@@ -479,11 +477,20 @@ def main() -> None:
         if "remote/forge" not in r:
             err("critical error (whuh?): no forge remote found")
 
+        # get the current branch
         step(
-            func=cmd(f"git fetch {r['remote/forge']} --dry-run"),
+            func=cmd("git branch --show-current"),
         )
-        if (not r["blank"]) and ("--dirty" not in argv):
+        branch = r["stdout"].strip()
-            err("critical error (whuh?): not up to date with forge... sync your changes first?")
+        if r.get("errored", "yes") or branch == "":
+            err("critical error (whuh?): couldn't get current branch")
+
+        step(func=cmd(f"git fetch {r['remote/forge']}"))
+        step(func=cmd(f"git rev-list HEAD...{r['remote/forge']}/{branch} --count"))
+        if (r.get("stdout", "").strip() != "0") and ("--dirty" not in argv):
+            err(
+                "critical error (whuh?): not up to date with forge... sync your changes first?"
+            )
 
         step(desc="3 lfs\tfetch lfs objects", func=cmd("git lfs fetch"))
 
@@ -507,33 +514,31 @@ def main() -> None:
                 "critical error (whuh? internal?): lfs objects still exist post-migrate and uninstall"
             )
 
-        try:
+        temp_sotaignore = Path(dir_temp).joinpath(".sotaignore")
-            sotaignore = (
-                Path(dir_temp)
-                .joinpath(".sotaignore")
-                .read_text(encoding="utf-8")
-                .strip()
-            )
-        except Exception as exc:
-            err("critical error: couldn't read .sotaignore file", exc=exc)
 
-        sotaignore_large_files: list[str] = [
+        if temp_sotaignore.exists():
-            line
+            try:
-            for line in sotaignore.splitlines()
+                sotaignore = temp_sotaignore.read_text(encoding="utf-8").strip()
-            if not line.startswith("#") and line.strip() != ""
+            except Exception as exc:
-        ]
+                err("critical error: couldn't read .sotaignore file", exc=exc)
 
-        # FUTURE: if this becomes slow, start chunking --path arguments
+            sotaignore_large_files: list[str] = [
-        # https://stackoverflow.com/questions/43762338/how-to-remove-file-from-git-history
+                line
+                for line in sotaignore.splitlines()
+                if not line.startswith("#") and line.strip() != ""
+            ]
 
-        for n, lf in enumerate(sotaignore_large_files, start=1):
+            # FUTURE: if this becomes slow, start chunking --path arguments
-            step(
+            # https://stackoverflow.com/questions/43762338/how-to-remove-file-from-git-history
-                desc=f"6 lfs\tfilter ({n}/{len(sotaignore_large_files)}) - {lf}",
+
-                func=cmd(f'git filter-repo --force --invert-paths --path "{lf}"'),
+            for n, lf in enumerate(sotaignore_large_files, start=1):
-            )
+                step(
+                    desc=f"6 lfs\tfilter ({n}/{len(sotaignore_large_files)}) - {lf}",
+                    func=cmd(f'git filter-repo --force --invert-paths --path "{lf}"'),
+                )
 
         step(
-            desc="7 lfs\tneuter .gitattributes",
+            desc="7 fin\tneuter .gitattributes",
             func=lambda: rewrite_gitattributes(Path(dir_temp)),
         )
 
@@ -552,15 +557,10 @@ def main() -> None:
                 err("critical error (whuh?): couldn't add github remote")
             r["remote/github"] = "github"
 
-        # get current branch
         step(
-            func=cmd("git branch --show-current"),
+            desc=f"9 fin\tpushing to github/{branch}",
-        )
-
-        step(
-            desc=f"9 fin\tpushing to github/{r['stdout'].strip()}",
             func=cmd(
-                f"git push {r['remote/github']} {r['stdout'].strip()} --force"
+                f"git push {r['remote/github']} {branch} --force"
                 if ("--test" not in argv)
                 else "git --version"
             ),