manifest: enable remove-project using path

A something.xml that gets included by two different
files, that both remove and add same shared project
to two different locations, would not work
prior to this change.

Reason is that remove killed all name keys, even
though reuse of same repo in different locations
is allowed.

Solve by adding optional attrib path to
<remove-project name="foo" path="only_this_path" />
and tweak remove-project.

Behaves as before without path, and deletes
more selectively when remove path is supplied.

As secondary feature, a project can now also be removed
by only using path, assuming a matching project name
can be found.

Change-Id: I502d9f949f5d858ddc1503846b170473f76dc8e2
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/375694
Tested-by: Fredrik de Groot <fredrik.de.groot@aptiv.com>
Reviewed-by: Mike Frysinger <vapier@google.com>

1 files changed, 36 insertions, 13 deletions

diff --git a/manifest_xml.py b/manifest_xml.py
index 555bf736..73be1b6e 100644
--- a/manifest_xml.py
+++ b/manifest_xml.py
@@ -1535,22 +1535,45 @@ https://gerrit.googlesource.com/git-repo/+/HEAD/docs/manifest-format.md
                 self._contactinfo = ContactInfo(bugurl)
 
             if node.nodeName == "remove-project":
-                name = self._reqatt(node, "name")
+                name = node.getAttribute("name")
+                path = node.getAttribute("path")
 
-                if name in self._projects:
-                    for p in self._projects[name]:
-                        del self._paths[p.relpath]
-                    del self._projects[name]
-
-                    # If the manifest removes the hooks project, treat it as if
-                    # it deleted
-                    # the repo-hooks element too.
-                    if repo_hooks_project == name:
-                        repo_hooks_project = None
-                elif not XmlBool(node, "optional", False):
+                # Name or path needed.
+                if not name and not path:
+                    raise ManifestParseError(
+                        "remove-project must have name and/or path"
+                    )
+
+                removed_project = ""
+
+                # Find and remove projects based on name and/or path.
+                for projname, projects in list(self._projects.items()):
+                    for p in projects:
+                        if name == projname and not path:
+                            del self._paths[p.relpath]
+                            if not removed_project:
+                                del self._projects[name]
+                                removed_project = name
+                        elif path == p.relpath and (
+                            name == projname or not name
+                        ):
+                            self._projects[projname].remove(p)
+                            del self._paths[p.relpath]
+                            removed_project = p.name
+
+                # If the manifest removes the hooks project, treat it as if
+                # it deleted the repo-hooks element too.
+                if (
+                    removed_project
+                    and removed_project not in self._projects
+                    and repo_hooks_project == removed_project
+                ):
+                    repo_hooks_project = None
+
+                if not removed_project and not XmlBool(node, "optional", False):
                     raise ManifestParseError(
                         "remove-project element specifies non-existent "
-                        "project: %s" % name
+                        "project: %s" % node.toxml()
                     )
 
         # Store repo hooks project information.