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init: change --manifest-depth default to 1

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Most users do not care about the manifest history in .repo/manifests/.
Let's change the default to 1 so things work smoothly for most people
most of the time.  For the rare folks who want the full history, they
can add --manifest-depth=0 to their `repo init`.

This has no effect on existing checkouts.

Spot checking Android & CrOS manifests shows significant speedups.
Full history can take O(10's seconds) to O(minutes) while depth of 1
takes constant time of O(~5 seconds).

Bug: 468033850
Change-Id: I4b8ed62a8a636babcc5226552badb69600d0c353
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/535481
Tested-by: Mike Frysinger <vapier@google.com>
Commit-Queue: Mike Frysinger <vapier@google.com>
Reviewed-by: Gavin Mak <gavinmak@google.com>
This commit is contained in:
Mike Frysinger
2025-12-11 17:24:49 -05:00
committed by LUCI
parent 871e4c7ed1
commit 622a5bf9c2
2 changed files with 4 additions and 4 deletions
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4
man/repo-init.1
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@@ -1,5 +1,5 @@
.\" DO NOT MODIFY THIS FILE! It was generated by help2man. .\" DO NOT MODIFY THIS FILE! It was generated by help2man.
.TH REPO "1" "September 2024" "repo init" "Repo Manual" .TH REPO "1" "December 2025" "repo init" "Repo Manual"
.SH NAME .SH NAME
repo \- repo init - manual page for repo init repo \- repo init - manual page for repo init
.SH SYNOPSIS .SH SYNOPSIS
@@ -53,7 +53,7 @@ create a git checkout of the manifest repo
.TP .TP
\fB\-\-manifest\-depth\fR=\fI\,DEPTH\/\fR \fB\-\-manifest\-depth\fR=\fI\,DEPTH\/\fR
create a shallow clone of the manifest repo with given create a shallow clone of the manifest repo with given
depth (0 for full clone); see git clone (default: 0) depth (0 for full clone); see git clone (default: 1)
.SS Manifest (only) checkout options: .SS Manifest (only) checkout options:
.TP .TP
\fB\-c\fR, \fB\-\-current\-branch\fR \fB\-c\fR, \fB\-\-current\-branch\fR

4
repo
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@@ -129,7 +129,7 @@ if not REPO_REV:
BUG_URL = "https://issues.gerritcodereview.com/issues/new?component=1370071" BUG_URL = "https://issues.gerritcodereview.com/issues/new?component=1370071"
# increment this whenever we make important changes to this script # increment this whenever we make important changes to this script
VERSION = (2, 54) VERSION = (2, 61)
# increment this if the MAINTAINER_KEYS block is modified # increment this if the MAINTAINER_KEYS block is modified
KEYRING_VERSION = (2, 3) KEYRING_VERSION = (2, 3)
@@ -325,7 +325,7 @@ def InitParser(parser):
group.add_option( group.add_option(
"--manifest-depth", "--manifest-depth",
type="int", type="int",
default=0, default=1,
metavar="DEPTH", metavar="DEPTH",
help="create a shallow clone of the manifest repo with " help="create a shallow clone of the manifest repo with "
"given depth (0 for full clone); see git clone " "given depth (0 for full clone); see git clone "