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init: add --manifest-depth for shallow manifest clone

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People rarely care about the history of the manifest repo.  Add a
parameter to specify depth for the manifest.

For now, make the default behavior the same as the current behavior.  At
a future date, the default will be changed to 1.  People who need the
full history should begin passing --manifest-depth=0 to preserve the
behavior when the default changes.

We can't reuse the existing --depth option because that applies to
all projects we clone, not just the manifest repo.

Bug: https://crbug.com/gerrit/16193, https://crbug.com/gerrit/16358
Change-Id: I9130fed3eaed656435c778a85cfe9d04e3a4a6a0
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/349814
Tested-by: LaMont Jones <lamontjones@google.com>
Reviewed-by: Xin Li <delphij@google.com>
This commit is contained in:
LaMont Jones 2022-08-18 07:20:57 -04:00
parent 6c8b894d8d
commit b750b48f50
5 changed files with 28 additions and 4 deletions
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6
man/repo-gitc-init.1
View File

@ -1,5 +1,5 @@
.\" DO NOT MODIFY THIS FILE! It was generated by help2man.
.TH REPO "1" "August 2022" "repo gitc-init" "Repo Manual"
.TH REPO "1" "October 2022" "repo gitc-init" "Repo Manual"
.SH NAME
repo \- repo gitc-init - manual page for repo gitc-init
.SH SYNOPSIS
@ -45,6 +45,10 @@ sync any submodules associated with the manifest repo
\fB\-\-standalone\-manifest\fR
download the manifest as a static file rather then
create a git checkout of the manifest repo
.TP
\fB\-\-manifest\-depth\fR=\fI\,DEPTH\/\fR
create a shallow clone of the manifest repo with given
depth (0 for full clone); see git clone (default: 0)
.SS Manifest (only) checkout options:
.TP
\fB\-\-current\-branch\fR

6
man/repo-init.1
View File

@ -1,5 +1,5 @@
.\" DO NOT MODIFY THIS FILE! It was generated by help2man.
.TH REPO "1" "August 2022" "repo init" "Repo Manual"
.TH REPO "1" "October 2022" "repo init" "Repo Manual"
.SH NAME
repo \- repo init - manual page for repo init
.SH SYNOPSIS
@ -45,6 +45,10 @@ sync any submodules associated with the manifest repo
\fB\-\-standalone\-manifest\fR
download the manifest as a static file rather then
create a git checkout of the manifest repo
.TP
\fB\-\-manifest\-depth\fR=\fI\,DEPTH\/\fR
create a shallow clone of the manifest repo with given
depth (0 for full clone); see git clone (default: 0)
.SS Manifest (only) checkout options:
.TP
\fB\-c\fR, \fB\-\-current\-branch\fR

10
man/repo-manifest.1
View File

@ -1,5 +1,5 @@
.\" DO NOT MODIFY THIS FILE! It was generated by help2man.
.TH REPO "1" "July 2022" "repo manifest" "Repo Manual"
.TH REPO "1" "October 2022" "repo manifest" "Repo Manual"
.SH NAME
repo \- repo manifest - manual page for repo manifest
.SH SYNOPSIS
@ -190,6 +190,8 @@ CDATA #IMPLIED>
<!ATTLIST extend\-project groups CDATA #IMPLIED>
<!ATTLIST extend\-project revision CDATA #IMPLIED>
<!ATTLIST extend\-project remote CDATA #IMPLIED>
<!ATTLIST extend\-project dest\-branch CDATA #IMPLIED>
<!ATTLIST extend\-project upstream CDATA #IMPLIED>
.IP
<!ELEMENT remove\-project EMPTY>
<!ATTLIST remove\-project name CDATA #REQUIRED>
@ -485,6 +487,12 @@ project. Same syntax as the corresponding element of `project`.
Attribute `remote`: If specified, overrides the remote of the original project.
Same syntax as the corresponding element of `project`.
.PP
Attribute `dest\-branch`: If specified, overrides the dest\-branch of the original
project. Same syntax as the corresponding element of `project`.
.PP
Attribute `upstream`: If specified, overrides the upstream of the original
project. Same syntax as the corresponding element of `project`.
.PP
Element annotation
.PP
Zero or more annotation elements may be specified as children of a project or

4
repo
View File

@ -316,6 +316,10 @@ def InitParser(parser, gitc_init=False):
help='download the manifest as a static file '
'rather then create a git checkout of '
'the manifest repo')
group.add_option('--manifest-depth', type='int', default=0, metavar='DEPTH',
help='create a shallow clone of the manifest repo with '
'given depth (0 for full clone); see git clone '
'(default: %default)')
# Options that only affect manifest project, and not any of the projects
# specified in the manifest itself.

4
subcmds/init.py
View File

@ -109,6 +109,10 @@ to update the working directory files.
Args:
opt: options from optparse.
"""
# Normally this value is set when instantiating the project, but the
# manifest project is special and is created when instantiating the
# manifest which happens before we parse options.
self.manifest.manifestProject.clone_depth = opt.manifest_depth
if not self.manifest.manifestProject.Sync(
manifest_url=opt.manifest_url,
manifest_branch=opt.manifest_branch,