manifest_xml: change .repo/manifest.xml to a plain file

Changing this to a file instead of using a symlink serves two purposes:
* We can insert some comments & doc links to help users learn what this
  is for, discover relevant documentation, and to discourage them from
  modifying things.
* Windows requires Administrator access to use symlinks.  With this
  last change, Windows users can get repo client checkouts with the new
  --worktree option and not need symlinks anywhere at all.  Which means
  they no longer need to be an Administrator in order to `repo sync`.

Change-Id: I9bc46824fd8d4b0f446ba84bd764994ca1e597e2
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/256313
Tested-by: Mike Frysinger <vapier@google.com>
Reviewed-by: David Pursehouse <dpursehouse@collab.net>
This commit is contained in:
Mike Frysinger 2020-02-21 00:49:41 -05:00 committed by David Pursehouse
parent 7951e14385
commit a269b1cb9d
2 changed files with 31 additions and 9 deletions

View File

@ -68,13 +68,20 @@ support, see the [manifest-format.md] file.
If you want to switch the tracking settings, re-run `repo init` with the
new settings.
* `manifest.xml`: The manifest that repo uses. It is generated at `repo init`
and uses the `--manifest-name` to determine what manifest file to load next
out of `manifests/`.
Do not try to modify this to load other manifests as it will confuse repo.
If you want to switch manifest files, re-run `repo init` with the new
setting.
Older versions of repo managed this with symlinks.
* `manifest.xml -> manifests/<manifest-name>.xml`: A symlink to the manifest
that the user wishes to sync. It is specified at `repo init` time via
`--manifest-name`.
Do not try to repoint this symlink to other files as it will confuse repo.
If you want to switch manifest files, re-run `repo init` with the new
setting.
* `manifests.git/.repo_config.json`: JSON cache of the `manifests.git/config`
file for repo to read/process quickly.

View File

@ -191,12 +191,27 @@ class XmlManifest(object):
"""
self.Override(name)
try:
# Old versions of repo would generate symlinks we need to clean up.
if os.path.lexists(self.manifestFile):
platform_utils.remove(self.manifestFile)
platform_utils.symlink(os.path.join('manifests', name), self.manifestFile)
except OSError as e:
raise ManifestParseError('cannot link manifest %s: %s' % (name, str(e)))
# This file is interpreted as if it existed inside the manifest repo.
# That allows us to use <include> with the relative file name.
with open(self.manifestFile, 'w') as fp:
fp.write("""<?xml version="1.0" encoding="UTF-8"?>
<!--
DO NOT EDIT THIS FILE! It is generated by repo and changes will be discarded.
If you want to use a different manifest, use `repo init -m <file>` instead.
If you want to customize your checkout by overriding manifest settings, use
the local_manifests/ directory instead.
For more information on repo manifests, check out:
https://gerrit.googlesource.com/git-repo/+/HEAD/docs/manifest-format.md
-->
<manifest>
<include name="%s" />
</manifest>
""" % (name,))
def _RemoteToXml(self, r, doc, root):
e = doc.createElement('remote')