Bug 16297 - Cannot set a git repo as a git premirror
Summary: Cannot set a git repo as a git premirror
Status: RESOLVED FIXED
Alias: None
Product: BitBake
Classification: Build System, Metadata & Runtime
Component: bitbake (show other bugs)
Version: 6.0
Hardware: x86 Multiple
: Medium enhancement
Target Milestone: 6.1
Assignee: Antonin Godard
QA Contact:
URL:
Whiteboard:
Depends on:
Blocks:
 
Reported: 2026-05-22 13:48 UTC by Ross Burton
Modified: 2026-06-17 15:23 UTC (History)
3 users (show)

See Also:
OS type for building Yocto: ---
Type of Regression: ---
Verified:
Documentation change: Yes (doc changes required)

Attachments
Add an attachment (proposed patch, testcase, etc.)

Note You need to log in before you can comment on or make changes to this bug.
Description Ross Burton 2026-05-22 13:48:03 UTC 
I have internal mirrors of the yocto git repositories, but I can't use them in fetches using PREMIRRORS. My expectation was that setting a git: URL premirror to a git: server is that it would do a git fetch from the new location:

PREMIRRORS:prepend = " \
    git://git.yoctoproject.org/.*     git://internal/mirrors/yoctoproject/ \
    git://git.openembedded.org/.*     git://internal/mirrors/openembedded/ \
    "

This absolutely did the wrong thing and tried to clone git://internal/mirrors/yoctoproject.

Reading the source told me about magic symbols so I changed the line to

  git://git.yoctoproject.org/.* git://internal/mirrors/yoctoproject/BASENAME \

This mostly does the right thing, but it does use the mirror URL in the paths:

  Cloning into bare repository '.../downloads/git2/internal.mirrors.yoctoproject.linux-yocto.git'...

I initially started to file a bug before discovering BASENAME so now I'm thinking we need to:
1) at least document the symbols better
2) consider if a git premirror should use the final or stated url as the filename
Comment 1 Randy MacLeod 2026-05-28 14:44:37 UTC 
Antonin can you work with Ross to document this issue/limitation?
Comment 2 Antonin Godard 2026-06-01 13:23:14 UTC 
Patch sent to hopefully clarify this: https://lore.kernel.org/r/20260601-clarify-mirrors-syntax-v1-1-d9dbdbaf037f@bootlin.com