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project: Use dicts to keep track of copyfiles and linkfiles

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This avoids copying/linking the same file/link multiple times if a
copyfile/linkfile element with the same values has been specifed
multiple times. This can happen when including a common manifest that
uses an extend-project element that has a copyfile/linkfile element.

This uses dicts rather than sets to store the copyfiles and linkfiles to
make sure the order they are specified in the manifest is maintained.
For Python 3.7+, maintaining the order that keys are added to dicts is
guaranteed, and for Python 3.6 it happened to be true.

The _CopyFile class and the _LinkFile class are changed to inherit from
NamedTuple to be able to store them in dicts.

Change-Id: I9f5a80298b875251a81c5fe7d353e262d104fae4
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/525322
Reviewed-by: Mike Frysinger <vapier@google.com>
Reviewed-by: Gavin Mak <gavinmak@google.com>
Tested-by: Peter Kjellerstedt <peter.kjellerstedt@axis.com>
Commit-Queue: Peter Kjellerstedt <peter.kjellerstedt@axis.com>
This commit is contained in:
Peter Kjellerstedt
2025-11-08 00:06:16 +01:00
committed by LUCI
parent 47c24b5c40
commit 412367bfaf
4 changed files with 131 additions and 40 deletions
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docs/manifest-format.md
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@@ -453,10 +453,14 @@ Intermediate paths must not be symlinks either.
Parent directories of "dest" will be automatically created if missing.
The files are copied in the order they are specified in the manifests.
If multiple elements specify the same source and destination, they will
only be applied as one, based on the first occurence. Files are copied
before any links specified via linkfile elements are created.
### Element linkfile
It's just like copyfile and runs at the same time as copyfile but
instead of copying it creates a symlink.
It's just like copyfile, but instead of copying it creates a symlink.
The symlink is created at "dest" (relative to the top of the tree) and
points to the path specified by "src" which is a path in the project.
@@ -466,6 +470,11 @@ Parent directories of "dest" will be automatically created if missing.
The symlink target may be a file or directory, but it may not point outside
of the repo client.
The links are created in the order they are specified in the manifests.
If multiple elements specify the same source and destination, they will
only be applied as one, based on the first occurence. Links are created
after any files specified via copyfile elements are copied.
### Element remove-project
Deletes a project from the internal manifest table, possibly