git rev-parse：将各种引用表示法转换为哈希值等
1,git log显示日志

myroot@myroot:~/linux/linux-5.15.7$ git log
commit ea79e49b21ae8706dfbe5e2f13a766b5b10ac9db (HEAD -> master)
Author: xxxxx(email)
Date: Sat Mar 19 19:29:29 2022 +0800

linux-5.15.7

2,git status显示修改状态

myroot@myroot:~/linux/linux-5.15.7$ git status
On branch master
Changes not staged for commit:
(use "git add <file>..." to update what will be committed)
(use "git checkout -- <file>..." to discard changes in working directory)

modified: arch/x86/kernel/setup.c

no changes added to commit (use "git add" and/or "git commit -a")

3,git rev-parse --verify --short HEAD：获取最新commit id的简短结果

myroot@myroot:~/linux/linux-5.15.7$ git rev-parse --verify --short HEAD
ea79e49b2

4,git rev-parse --show-cdup：显示从当前目录后退到工作区的根的深度

myroot@myroot:~/linux/linux-5.15.7$ git rev-parse --show-cdup
结果是空
myroot@myroot:~/linux/linux-5.15.7/include/config$ git rev-parse --show-cdup
../../

5,git rev-parse --verify HEAD：

myroot@myroot:~/linux/linux-5.15.7$ git rev-parse --verify HEAD
ea79e49b21ae8706dfbe5e2f13a766b5b10ac9db

6,git describe：

myroot@myroot:~/linux/linux-5.15.7$ git describe --exact-match
fatal: No names found, cannot describe anything.

myroot@myroot:~/linux/linux-5.15.7$ git describe
fatal: No names found, cannot describe anything.

7,git --no-optional-locks status -uno --porcelain：

myroot@myroot:~/linux/linux-5.15.7$ git --no-optional-locks status -uno --porcelain
M arch/x86/kernel/setup.c

8,git diff-index：Compare a tree to the working tree or index

myroot@myroot:~/linux/linux-5.15.7$ git diff-index --name-only HEAD
arch/x86/kernel/setup.c

9,git rev-parse --git-dir：显示版本库.git目录所在位置

myroot@myroot:~/linux/linux-5.15.7$ git rev-parse --git-dir
.git

10,git rev-parse --show-toplevel：显示工作区根目录

myroot@myroot:~/linux/linux-5.15.7$ git rev-parse --show-toplevel
/home/myroot/linux/linux-5.15.7

11,git rev-parse --show-prefix：所在目录相对于工作区根目录的相对目录

myroot@myroot:~/linux/linux-5.15.7$ git rev-parse --show-prefix
结果是空
myroot@myroot:~/linux/linux-5.15.7/include/config$ git rev-parse --show-prefix
include/config/

附：linux-5.15.7/scripts/setlocalversion

#!/bin/sh
# SPDX-License-Identifier: GPL-2.0
#
# This scripts adds local version information from the version
# control systems git, mercurial (hg) and subversion (svn).
#
# If something goes wrong, send a mail the kernel build mailinglist
# (see MAINTAINERS) and CC Nico Schottelius
# <nico-linuxsetlocalversion -at- schottelius.org>.
#
#

usage() {
       echo "Usage: $0 [--save-scmversion] [srctree]" >&2
       exit 1
}

scm_only=false
srctree=.
if test "$1" = "--save-scmversion"; then
       scm_only=true
       shift
fi
if test $# -gt 0; then
       srctree=$1
       shift
fi
if test $# -gt 0 -o ! -d "$srctree"; then
       usage
fi

scm_version()
{
       local short
       short=false

cd "$srctree"
       if test -e .scmversion; then
               cat .scmversion
               return
       fi
       if test "$1" = "--short"; then
               short=true
       fi

# Check for git and a git repo.
       if test -z "$(git rev-parse --show-cdup 2>/dev/null)" &&
            head=$(git rev-parse --verify HEAD 2>/dev/null); then

# 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 only the short version is requested, don't bother
                       # running further git commands
                       if $short; then
                               echo "+"
                               return
                       fi
                       # If we are past a tagged commit (like
                       # "v2.6.30-rc5-302-g72357d5"), we pretty print it.
                       if atag="$(git describe 2>/dev/null)"; then
                               echo "$atag" | awk -F- '{printf("-%05d", $(NF-1))}'
                       fi

# Add -g and exactly 12 hex chars.
                       printf '%s%s' -g "$(echo $head | cut -c1-12)"
               fi

# Check for uncommitted changes.
               # This script must avoid any write attempt to the source tree,
               # which might be read-only.
               # You cannot use 'git describe --dirty' because it tries to
               # create .git/index.lock .
               # First, with git-status, but --no-optional-locks is only
               # supported in git >= 2.14, so fall back to git-diff-index if
               # it fails. Note that git-diff-index does not refresh the
               # index, so it may give misleading results. See
               # git-update-index(1), git-diff-index(1), and git-status(1).
               if {
                       git --no-optional-locks status -uno --porcelain 2>/dev/null ||
                       git diff-index --name-only HEAD
               } | read dummy; then
                       printf '%s' -dirty
               fi
       fi
}

collect_files()
{
       local file res=

for file; do
               case "$file" in
               *\~*)
                       continue
                       ;;
               esac
               if test -e "$file"; then
                       res="$res$(cat "$file")"
               fi
       done
       echo "$res"
}

if $scm_only; then
       if test ! -e .scmversion; then
               res=$(scm_version)
               echo "$res" >.scmversion
       fi
       exit
fi

if test -e include/config/auto.conf; then
       . include/config/auto.conf
else
       echo "Error: kernelrelease not valid - run 'make prepare' to update it" >&2
       exit 1
fi

# localversion* files in the build and source directory
res="$(collect_files localversion*)"
if test ! "$srctree" -ef .; then
       res="$res$(collect_files "$srctree"/localversion*)"
fi

# CONFIG_LOCALVERSION and LOCALVERSION (if set)
res="${res}${CONFIG_LOCALVERSION}${LOCALVERSION}"

# scm version string if not at a tagged commit
if test "$CONFIG_LOCALVERSION_AUTO" = "y"; then
       # full scm version string
       res="$res$(scm_version)"
elif [ "${LOCALVERSION+set}" != "set" ]; then
       # If the variable LOCALVERSION is not set, append a plus
       # sign if the repository is not in a clean annotated or
       # signed tagged state (as git describe only looks at signed
       # or annotated tags - git tag -a/-s).
       #
       # If the variable LOCALVERSION is set (including being set
       # to an empty string), we don't want to append a plus sign.
       scm=$(scm_version --short)
       res="$res${scm:++}"
fi

echo "$res"

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git rev-parse之操作笔记

git rev-parse：将各种引用表示法转换为哈希值等
1,git log显示日志

2,git status显示修改状态

3,git rev-parse --verify --short HEAD：获取最新commit id的简短结果

4,git rev-parse --show-cdup：显示从当前目录后退到工作区的根的深度

5,git rev-parse --verify HEAD：

6,git describe：

7,git --no-optional-locks status -uno --porcelain：

8,git diff-index：Compare a tree to the working tree or index

9,git rev-parse --git-dir：显示版本库.git目录所在位置

10,git rev-parse --show-toplevel：显示工作区根目录

11,git rev-parse --show-prefix：所在目录相对于工作区根目录的相对目录

附：linux-5.15.7/scripts/setlocalversion

git rev-parse之操作笔记相关推荐

最新文章

热门文章

git rev-parse之操作笔记

git rev-parse：将各种引用表示法转换为哈希值等 1,git log显示日志

2,git status显示修改状态

3,git rev-parse --verify --short HEAD：获取最新commit id的简短结果

4,git rev-parse --show-cdup： 显示从当前目录后退到工作区的根的深度

5,git rev-parse --verify HEAD：

6,git describe：

7,git --no-optional-locks status -uno --porcelain：

8,git diff-index：Compare a tree to the working tree or index

9,git rev-parse --git-dir：显示版本库.git目录所在位置

10,git rev-parse --show-toplevel：显示工作区根目录

11,git rev-parse --show-prefix：所在目录相对于工作区根目录的相对目录

附：linux-5.15.7/scripts/setlocalversion

git rev-parse之操作笔记相关推荐

最新文章

热门文章

git rev-parse：将各种引用表示法转换为哈希值等
1,git log显示日志

4,git rev-parse --show-cdup：显示从当前目录后退到工作区的根的深度