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setlocalversion: use only the correct release tag for git-describe

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Currently, setlocalversion uses any annotated tag for git-describe.
If we are at a tagged commit, it will not append the commit hash.

  $ git checkout v6.2-rc1^
  $ make -s defconfig kernelrelease
  6.1.0-14595-g292a089d78d3
  $ git tag -a foo -m foo
  $ make -s kernelrelease
  6.1.0

If a local tag 'foo' exists, it pretends to be a released version
'6.1.0', while there are many commits on top of it.

The output should be consistent irrespective of such a local tag.
Pass the correct release tag to --match option of git-describe.

In the mainline kernel, the SUBLEVEL is always '0', which is omitted
from the tag.

  KERNELVERSION      annotated tag
  6.1.0          ->  v6.1            (mainline)
  6.2.0-rc5      ->  v6.2-rc5        (mainline, release candidate)
  6.1.7          ->  v6.1.7          (stable)

To preserve the behavior in linux-next, use the tag derived from
localversion* files if exists. In linux-next, the local version is
specified by the localversion-next file.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
This commit is contained in:
Masahiro Yamada 2023-02-05 21:09:57 +09:00
parent eed36d7751
commit 6ab7e1f95e
1 changed files with 20 additions and 7 deletions
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27
scripts/setlocalversion
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@ -27,6 +27,7 @@ fi
scm_version()
{
local short
local tag
short=false
cd "$srctree"
@ -42,9 +43,21 @@ scm_version()
return
fi
# If we are at a tagged commit (like "v2.6.30-rc6"), we ignore it
# because this version is defined in the top level Makefile.
if [ -z "$(git describe --exact-match 2>/dev/null)" ]; then
# If a localversion*' file and the corresponding annotated tag exist,
# use it. This is the case in linux-next.
tag=${file_localversion#-}
tag=$(git describe --exact-match --match=$tag $tag 2>/dev/null)
# Otherwise, default to the annotated tag derived from KERNELVERSION.
# mainline kernel: 6.2.0-rc5 -> v6.2-rc5
# stable kernel: 6.1.7 -> v6.1.7
if [ -z "${tag}" ]; then
tag=v$(echo "${KERNELVERSION}" | sed -E 's/^([0-9]+\.[0-9]+)\.0(.*)$/\1\2/')
fi
# If we are at the tagged commit, we ignore it because the version is
# well-defined.
if [ -z "$(git describe --exact-match --match=$tag 2>/dev/null)" ]; then
# If only the short version is requested, don't bother
# running further git commands
@ -52,9 +65,9 @@ scm_version()
echo "+"
return
fi
# If we are past a tagged commit (like
# "v2.6.30-rc5-302-g72357d5"), we pretty print it.
if atag="$(git describe 2>/dev/null)"; then
# If we are past the tagged commit, we pretty print it.
# (like 6.1.0-14595-g292a089d78d3)
if atag="$(git describe --match=$tag 2>/dev/null)"; then
echo "$atag" | awk -F- '{printf("-%05d", $(NF-1))}'
fi
@ -116,7 +129,7 @@ fi
# version string from CONFIG_LOCALVERSION
config_localversion=$(sed -n 's/^CONFIG_LOCALVERSION=\(.*\)$/\1/p' include/config/auto.conf)
# scm version string if not at a tagged commit
# scm version string if not at the kernel version tag or at the file_localversion
if grep -q "^CONFIG_LOCALVERSION_AUTO=y$" include/config/auto.conf; then
# full scm version string
scm_version="$(scm_version)"