Sh and pkg

constructor/preconda.py

@@ -147,6 +147,7 @@ def write_files(info: dict, workspace: str):
 
     - `conda-meta/initial-state.explicit.txt`: Lockfile to provision the base environment.
     - `conda-meta/history`: Prepared history file with the right requested specs in input file.
+    - `conda-meta/frozen`: Frozen marker file used to protect conda environment state.
     - `pkgs/urls` and `pkgs/urls.txt`: Direct URLs of packages used, with and without MD5 hashes.
     - `pkgs/cache/*.json`: Trimmed repodata to mock offline channels in use.
     - `pkgs/channels.txt`: Channels in use.
@@ -199,6 +200,9 @@ def write_files(info: dict, workspace: str):
     # (list of specs/dists to install)
     write_initial_state_explicit_txt(info, join(workspace, "conda-meta"), final_urls_md5s)
 
+    # base environment frozen marker files
+    write_frozen(info.get("freeze_base"), join(workspace, "conda-meta"))
+
     for fn in files:
         os.chmod(join(workspace, fn), 0o664)
 
@@ -218,6 +222,8 @@ def write_files(info: dict, workspace: str):
         write_channels_txt(info, env_pkgs, env_config)
         # shortcuts
         write_shortcuts_txt(info, env_pkgs, env_config)
+        # frozen marker file
+        write_frozen(env_config.get("freeze_env"), env_conda_meta)
 
 
 def write_conda_meta(info, dst_dir, final_urls_md5s, user_requested_specs=None):
@@ -244,6 +250,14 @@ def write_conda_meta(info, dst_dir, final_urls_md5s, user_requested_specs=None):
         fh.write("\n".join(builder))
 
 
+def write_frozen(freeze_info, dst_dir):
+    if not freeze_info or "conda" not in freeze_info:
+        return
+    frozen_path = join(dst_dir, "frozen")
+    with open(frozen_path, "w") as ff:
+        json.dump(freeze_info["conda"], ff)
+
+
 def write_repodata_record(info, dst_dir):
     all_dists = info["_dists"].copy()
     for env_data in info.get("_extra_envs_info", {}).values():

constructor/shar.py

@@ -173,12 +173,20 @@ def create(info, verbose=False):
     pre_t.addfile(tarinfo=tarfile.TarInfo("conda-meta/history"))
     post_t.add(join(tmp_dir, "conda-meta", "history"), "conda-meta/history")
 
+    if os.path.exists(join(tmp_dir, "conda-meta", "frozen")):
+        post_t.add(join(tmp_dir, "conda-meta", "frozen"), "conda-meta/frozen")
+
     for env_name in info.get("_extra_envs_info", {}):
         pre_t.addfile(tarinfo=tarfile.TarInfo(f"envs/{env_name}/conda-meta/history"))
         post_t.add(
             join(tmp_dir, "envs", env_name, "conda-meta", "history"),
             f"envs/{env_name}/conda-meta/history",
         )
+        if os.path.exists(join(tmp_dir, "envs", env_name, "conda-meta", "frozen")):
+            post_t.add(
+                join(tmp_dir, "envs", env_name, "conda-meta", "frozen"),
+                f"envs/{env_name}/conda-meta/frozen",
+            )
 
     extra_files = copy_extra_files(info.get("extra_files", []), tmp_dir)
     for path in extra_files: