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Sam Saccone
project: pass –no-filter and –no-tags in DownloadPatchSet


In partial clone checkouts (e.g. –filter=blob:none or blob:limit=10k),
DownloadPatchSet previously invoked git fetch <remote> <ref> without
explicit filter overrides. Consequently, git fetch applied the
configured partial clone filter from the remote and omitted the blobs
for the incoming change.


When repo download subsequently checks out, cherry-picks, or merges the
downloaded commit, Git discovers that the required blobs are missing
locally and triggers on-demand unadvertised object fetches to the
promisor remote (POST /git-upload-pack with want <blob_sha>). On large
repositories, server-side reachability validation for unadvertised
objects can result in expensive graph traversals, proxy/gateway timeouts
(such as HTTP 502 or connection drops), and client fetch failures:
  fatal: expected ‘packfile’
  fatal: could not fetch  from promisor remote


Pass –no-filter (when Git >= 2.17.0) and –no-tags when fetching patch
sets in DownloadPatchSet. Because the change ref is an advertised ref
tip, fetching with –no-filter allows the server to generate a complete
packfile containing all required blobs upfront without requiring
unadvertised object reachability checks. All blobs are present in the
local object database prior to checkout or cherry-pick, completely
preventing on-demand promisor queries.


TAG=agy
CONV=bdc489e3-b20b-4ef3-b32e-549dbe21fc6c


Google-Bug-Id: b/532920848
Test: pytest tests/test_project.py
Change-Id: Ic6118e4edeb754f0467e0580fd1d0965a6553153
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/625621
Reviewed-by: Gavin Mak gavinmak@google.com
Tested-by: Sam Saccone samccone@google.com
Commit-Queue: Sam Saccone samccone@google.com
15天前2159次提交
README.md

repo

Repo is a tool built on top of Git. Repo helps manage many Git repositories, does the uploads to revision control systems, and automates parts of the development workflow. Repo is not meant to replace Git, only to make it easier to work with Git. The repo command is an executable Python script that you can put anywhere in your path.

Contact

Please use the repo-discuss mailing list or issue tracker for questions.

You can file a new bug report under the “repo” component.

Please do not e-mail individual developers for support. They do not have the bandwidth for it, and often times questions have already been asked on repo-discuss or bugs posted to the issue tracker. So please search those sites first.

Install

Many distros include repo, so you might be able to install from there.

# Debian/Ubuntu.
$ sudo apt-get install repo

# Gentoo.
$ sudo emerge dev-vcs/repo

You can install it manually as well as it’s a single script.

$ mkdir -p ~/.bin
$ PATH="${HOME}/.bin:${PATH}"
$ curl https://storage.googleapis.com/git-repo-downloads/repo > ~/.bin/repo
$ chmod a+rx ~/.bin/repo

Shell Completion

Repo includes completion scripts for Bash and Zsh.

Bash

To enable completion in Bash, source completion.bash in your ~/.bashrc:

source /path/to/git-repo/completion.bash

Zsh

To enable completion in Zsh, you can either:

  1. Copy or symlink completion.zsh to a file named _repo in a directory in your $fpath:

    mkdir -p ~/.zsh/completion
# You can copy the file:
cp /path/to/git-repo/completion.zsh ~/.zsh/completion/_repo
# Or symlink it:
ln -s /path/to/git-repo/completion.zsh ~/.zsh/completion/_repo

    Then add that directory to your fpath in ~/.zshrc before compinit:

    fpath=(~/.zsh/completion $fpath)
autoload -Uz compinit
compinit

  2. Or source the file directly and call compdef in your ~/.zshrc:

    source /path/to/git-repo/completion.zsh
compdef _repo repo
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