[Buildroot] [Bug 6080] New: Git fetch caching

[Buildroot] [Bug 6080] New: Git fetch caching

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=6080

           Summary: Git fetch caching
           Product: buildroot
           Version: 2012.08
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: minor
          Priority: P5
         Component: Other
        AssignedTo: unassigned at buildroot.uclibc.org
        ReportedBy: acooks at gmail.com
                CC: buildroot at uclibc.org
   Estimated Hours: 0.0


When using the Custom Git tree kernel option, changes to the git repository are
not detected by buildroot. Even a 'make clean' doesn't remove the stale cached
sources. 

Please provide a way to use a local git repo directly, without any caching.

-- 
Configure bugmail: https://bugs.busybox.net/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are on the CC list for the bug.

[Buildroot] [Bug 6080] Git fetch caching

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=6080

--- Comment #1 from Thomas Petazzoni <thomas.petazzoni@free-electrons.com> 2013-03-08 08:36:16 UTC ---
Have you tested the OVERRIDE_SRCDIR mechanism?

-- 
Configure bugmail: https://bugs.busybox.net/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are on the CC list for the bug.

[Buildroot] [Bug 6080] Git fetch caching

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=6080

--- Comment #2 from Andrew Cooks <acooks@gmail.com> 2013-03-11 03:25:27 UTC ---
OVERRIDE_SRCDIR is not sufficiently described in the manual, but I found a
description at http://elinux.org/images/2/2a/Using-buildroot-real-project.pdf

It helps, but it's not exactly what I was looking for.

Consider this section from my config file:
--
#
# Kernel
#
BR2_LINUX_KERNEL=y
# BR2_LINUX_KERNEL_3_6 is not set
# BR2_LINUX_KERNEL_SAME_AS_HEADERS is not set
# BR2_LINUX_KERNEL_CUSTOM_VERSION is not set
# BR2_LINUX_KERNEL_CUSTOM_TARBALL is not set
BR2_LINUX_KERNEL_CUSTOM_GIT=y
BR2_LINUX_KERNEL_CUSTOM_GIT_REPO_URL="/home/andrew/devel/lk.git"
BR2_LINUX_KERNEL_CUSTOM_GIT_VERSION="dma_maps-20130306"
BR2_LINUX_KERNEL_VERSION="dma_maps-20130306"
BR2_LINUX_KERNEL_PATCH=""
# BR2_LINUX_KERNEL_USE_DEFCONFIG is not set
BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y
BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="/home/andrew/devel/lk.git/.config_mod_ahci"
BR2_LINUX_KERNEL_BZIMAGE=y
# BR2_LINUX_KERNEL_VMLINUX is not set
# BR2_LINUX_KERNEL_IMAGE_TARGET_CUSTOM is not set
# BR2_LINUX_KERNEL_DTS_SUPPORT is not set
# BR2_LINUX_KERNEL_INSTALL_TARGET is not set
--

It isn't clear to me whether using a local path for the CUSTOM_GIT_REPO_URL is
a recognised and valid use case. It works, but with nasty caching.

If you accept that it is a valid use case, I think it would be sensible to
detect the local path and use rsync without creating a tarball, similar to
'SITE METHOD = local'.

-- 
Configure bugmail: https://bugs.busybox.net/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are on the CC list for the bug.

[Buildroot] [Bug 6080] Git fetch caching

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=6080

--- Comment #3 from Thomas Petazzoni <thomas.petazzoni@free-electrons.com> 2013-05-26 13:33:15 UTC ---
What do you call "nasty caching" ? The fact that Buildroot creates a tarball
stored in $(DL_DIR) is expected, and I don't think we want to disable that. If
your 'dma_maps-20130306' tag doesn't move, then Buildroot caching should not be
a problem.

Otherwise, if you're actively doing some development on the Linux kernel
sources, and therefore need Buildroot to restart the build of the kernel using
the modified sources, you should really be using LINUX_OVERRIDE_SRCDIR.

-- 
Configure bugmail: https://bugs.busybox.net/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are on the CC list for the bug.

[Buildroot] [Bug 6080] Git fetch caching

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=6080

Thomas Petazzoni <thomas.petazzoni@free-electrons.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |WONTFIX

--- Comment #4 from Thomas Petazzoni <thomas.petazzoni@free-electrons.com> 2014-01-08 05:18:06 UTC ---
I don't think this was really a "bug", what the user is seeing is expected
Buildroot behavior.

-- 
Configure bugmail: https://bugs.busybox.net/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are on the CC list for the bug.