# LibreWolf bootstrap-without-vcs.patch
#
# Author:        Malte Jürgens <maltejur@dismail.de>
# Description:   Allow mach bootstrapping without a VCS checkout
# Last Updated:  2023-03-15
# License:       MPL 2.0
#
# This patch allows you to use `./mach bootstrap` without a VCS checkout.
# You can use that command to bootstrap a Firefox build environment.
# This patch works by adding a stub `LocalRepository`, which suprisingly
# is enough to make the bootstrapping process work. This may break other
# things in mach, but we don't use those.
--- a/python/mozboot/mozboot/bootstrap.py
+++ b/python/mozboot/mozboot/bootstrap.py
@@ -628,10 +628,7 @@ def current_firefox_checkout(env, hg: Optional[Path] = None):
             break
         path = path.parent
 
-    raise UserError(
-        "Could not identify the root directory of your checkout! "
-        "Are you running `mach bootstrap` in an hg or git clone?"
-    )
+    return ("local", Path.cwd())
 
 
 def update_git_tools(git: Optional[Path], root_state_dir: Path):
--- a/python/mozversioncontrol/mozversioncontrol/__init__.py
+++ b/python/mozversioncontrol/mozversioncontrol/__init__.py
@@ -744,6 +744,29 @@ class GitRepository(Repository):
         self._run("config", name, value)
 
 
+class LocalRepository(Repository):
+
+    def __init__(self, path):
+        super(LocalRepository, self).__init__(path, tool="true")
+
+    @property
+    def head_ref(self):
+        return ""
+
+    def get_outgoing_files(self):
+        return []
+
+    def get_changed_files(self):
+        return []
+
+    def get_tracked_files_finder(self):
+        files = [os.path.relpath(os.path.join(dp, f), self.path).replace("\\","/") for dp, dn, fn in os.walk(self.path) for f in fn]
+        files.sort()
+        return FileListFinder(files)
+
+
+        
+
 def get_repository_object(path: Optional[Union[str, Path]], hg="hg", git="git"):
     """Get a repository object for the repository at `path`.
     If `path` is not a known VCS repository, raise an exception.
@@ -757,7 +780,7 @@ def get_repository_object(path: Optional[Union[str, Path]], hg="hg", git="git"):
     elif (path / ".git").exists():
         return GitRepository(path, git=git)
     else:
-        raise InvalidRepoPath(f"Unknown VCS, or not a source checkout: {path}")
+        return LocalRepository(path)
 
 
 def get_repository_from_build_config(config):
@@ -781,6 +804,8 @@ def get_repository_from_build_config(config):
         return HgRepository(Path(config.topsrcdir), hg=config.substs["HG"])
     elif flavor == "git":
         return GitRepository(Path(config.topsrcdir), git=config.substs["GIT"])
+    elif flavor == "local":
+        return LocalRepository(config.topsrcdir)
     else:
         raise MissingVCSInfo("unknown VCS_CHECKOUT_TYPE value: %s" % flavor)
 
--- a/third_party/python/mozilla_repo_urls/mozilla_repo_urls/parser.py
+++ b/third_party/python/mozilla_repo_urls/mozilla_repo_urls/parser.py
@@ -9,22 +9,7 @@ for i, platform in enumerate(ADDITIONAL_PLATFORMS):
     giturlparse.platforms.PLATFORMS.insert(i, platform)
 
 
-_SUPPORTED_PLATFORMS = ("hgmo", "github")
-
-
-SUPPORTED_HOSTS = tuple(
-    sorted(
-        [
-            host
-            for domains in [
-                platform[1].DOMAINS
-                for platform in giturlparse.platforms.PLATFORMS
-                if platform[0] in _SUPPORTED_PLATFORMS
-            ]
-            for host in domains
-        ]
-    )
-)
+SUPPORTED_HOSTS = ("hg.mozilla.org", "github.com", "gitlab.com")
 
 
 def parse(url_string):
--- a/third_party/python/taskcluster_taskgraph/taskgraph/util/vcs.py
+++ b/third_party/python/taskcluster_taskgraph/taskgraph/util/vcs.py
@@ -495,6 +495,64 @@ class GitRepository(Repository):
             raise
 
 
+class LocalRepository(Repository):
+    @property
+    def tool(self):
+        return "true"
+
+    @property
+    def head_rev(self) -> str:
+        return ""
+
+    @property
+    def base_rev(self):
+        return ""
+
+    @property
+    def branch(self):
+        return ""
+
+    @property
+    def all_remote_names(self):
+        return ""
+
+    @property
+    def default_remote_name(self):
+        return ""
+
+    @property
+    def remote_name(self):
+        return ""
+
+    @property
+    def default_branch(self):
+        return ""
+
+    def get_url(self, remote=None):
+        return ""
+
+    def get_commit_message(self, revision=None):
+        raise Exception("Unimplemented")
+
+    def get_changed_files(self, diff_filter, mode="unstaged", rev=None, base_rev=None):
+        raise Exception("Unimplemented")
+
+    def get_outgoing_files(self, diff_filter, upstream):
+        raise Exception("Unimplemented")
+
+    def working_directory_clean(self, untracked=False, ignored=False):
+        raise Exception("Unimplemented")
+
+    def update(self, ref):
+        raise Exception("Unimplemented")
+
+    def find_latest_common_revision(self, base_ref_or_rev, head_rev):
+        raise Exception("Unimplemented")
+
+    def does_revision_exist_locally(self, revision):
+        raise Exception("Unimplemented")
+
+
 def get_repository(path):
     """Get a repository object for the repository at `path`.
     If `path` is not a known VCS repository, raise an exception.
@@ -505,7 +563,7 @@ def get_repository(path):
         elif os.path.exists(os.path.join(path, ".git")):
             return GitRepository(path)
 
-    raise RuntimeError("Current directory is neither a git or hg repository")
+    return LocalRepository(path)
 
 
 def find_hg_revision_push_info(repository, revision):