我们在工作中使用SVN,但在我的个人项目中,我决定使用Git。所以我昨天安装了Git,我想知道Git中对应的版本号是多少。

假设我们在3.0.8版本上工作,当我们讨论这个错误修复时,每个错误修复都有自己的修订号。那么,如果我在Git中将代码标记为3.0.8,那么我可以使用什么作为修订号或其他更详细的标识?我发现哈希对人类不太友好。


当前回答

我只是想指出另一种可能的方法-那就是使用git git-notes(1),自v 1.6.6 (Self - git的注释)以来就存在(我使用的是git版本1.7.9.5)。

基本上,我使用git svn克隆了一个具有线性历史的svn存储库(没有标准布局、没有分支、没有标记),并且我想比较克隆的git存储库中的修订号。默认情况下,这个git克隆没有标签,所以我不能使用git describe。这里的策略可能只适用于线性历史-不确定它将如何与合并等;但基本策略如下:

Ask git rev-list for list of all commit history Since rev-list is by default in "reverse chronological order", we'd use its --reverse switch to get list of commits sorted by oldest first Use bash shell to increase a counter variable on each commit as a revision counter, generate and add a "temporary" git note for each commit Then, browse the log by using git log with --notes, which will also dump a commit's note, which in this case would be the "revision number" When done, erase the temporary notes (NB: I'm not sure if these notes are committed or not; they don't really show in git status)

首先,让我们注意到git有一个默认的笔记位置-但你也可以为笔记指定一个ref(erence) -它会将它们存储在.git下的另一个目录中;例如,在git repo文件夹中,你可以调用git notes get-ref来查看该目录:

$ git notes get-ref
refs/notes/commits
$ git notes --ref=whatever get-ref
refs/notes/whatever

需要注意的是,如果你的注释添加了——ref,你也必须在之后再次使用该引用-否则你可能会得到像“没有为对象XXX找到注释…”这样的错误。

对于这个示例,我选择将注释的引用称为“linrev”(用于线性修订)——这也意味着该过程不太可能干扰已经存在的注释。我也使用——git-dir开关,因为是一个git新手,我有一些问题理解它-所以我想“记住以后”:);并且我还使用——no-pager来抑制生成较少时使用git日志。

假设你在一个目录下,子文件夹myrepo_git是一个git仓库;你可以这样做:

### check for already existing notes:

$ git --git-dir=./myrepo_git/.git notes show
# error: No note found for object 04051f98ece25cff67e62d13c548dacbee6c1e33.
$ git --git-dir=./myrepo_git/.git notes --ref=linrev show
# error: No note found for object 04051f98ece25cff67e62d13c548dacbee6c1e33.

### iterate through rev-list three, oldest first,
### create a cmdline adding a revision count as note to each revision

$ ix=0; for ih in $(git --git-dir=./myrepo_git/.git rev-list --reverse HEAD); do \
  TCMD="git --git-dir=./myrepo_git/.git notes --ref linrev"; \
  TCMD="$TCMD add $ih -m \"(r$((++ix)))\""; \
  echo "$TCMD"; \
  eval "$TCMD"; \
done

# git --git-dir=./myrepo_git/.git notes --ref linrev add 6886bbb7be18e63fc4be68ba41917b48f02e09d7 -m "(r1)"
# git --git-dir=./myrepo_git/.git notes --ref linrev add f34910dbeeee33a40806d29dd956062d6ab3ad97 -m "(r2)"
# ...
# git --git-dir=./myrepo_git/.git notes --ref linrev add 04051f98ece25cff67e62d13c548dacbee6c1e33 -m "(r15)"

### check status - adding notes seem to not affect it:

$ cd myrepo_git/
$ git status
# # On branch master
# nothing to commit (working directory clean)
$ cd ../

### check notes again:

$ git --git-dir=./myrepo_git/.git notes show
# error: No note found for object 04051f98ece25cff67e62d13c548dacbee6c1e33.
$ git --git-dir=./myrepo_git/.git notes --ref=linrev show
# (r15)

### note is saved - now let's issue a `git log` command, using a format string and notes:

$ git --git-dir=./myrepo_git/.git --no-pager log --notes=linrev --format=format:"%h: %an: %ad:  >>%s<< %N" HEAD
# 04051f9: _user_: Sun Apr 21 18:29:02 2013 +0000:  >>test message 15 << (r15)
# 77f3902: _user_: Sun Apr 21 18:29:00 2013 +0000:  >>test message 14<< (r14)
# ...
# 6886bbb: _user_: Sun Apr 21 17:11:52 2013 +0000:  >>initial test message 1<< (r1)

### test git log with range:

$ git --git-dir=./myrepo_git/.git --no-pager log --notes=linrev --format=format:"%h: %an: %ad:  >>%s<< %N" HEAD^..HEAD
# 04051f9: _user_: Sun Apr 21 18:29:02 2013 +0000:  >>test message 15 << (r15)

### erase notes - again must iterate through rev-list

$ ix=0; for ih in $(git --git-dir=./myrepo_git/.git rev-list --reverse HEAD); do \
  TCMD="git --git-dir=./myrepo_git/.git notes --ref linrev"; \
  TCMD="$TCMD remove $ih"; \
  echo "$TCMD"; \
  eval "$TCMD"; \
done
# git --git-dir=./myrepo_git/.git notes --ref linrev remove 6886bbb7be18e63fc4be68ba41917b48f02e09d7
# Removing note for object 6886bbb7be18e63fc4be68ba41917b48f02e09d7
# git --git-dir=./myrepo_git/.git notes --ref linrev remove f34910dbeeee33a40806d29dd956062d6ab3ad97
# Removing note for object f34910dbeeee33a40806d29dd956062d6ab3ad97
# ...
# git --git-dir=./myrepo_git/.git notes --ref linrev remove 04051f98ece25cff67e62d13c548dacbee6c1e33
# Removing note for object 04051f98ece25cff67e62d13c548dacbee6c1e33

### check notes again:

$ git --git-dir=./myrepo_git/.git notes show
# error: No note found for object 04051f98ece25cff67e62d13c548dacbee6c1e33.
$ git --git-dir=./myrepo_git/.git notes --ref=linrev show
# error: No note found for object 04051f98ece25cff67e62d13c548dacbee6c1e33.

因此,至少在我的完全线性历史没有分支的特定情况下,修订号似乎与这种方法相匹配-此外,似乎这种方法将允许使用修订范围的git log,同时仍然获得正确的修订号- YMMV具有不同的上下文,尽管…

希望这能帮助到一些人, 干杯!


编辑:好的,这里稍微简单一点,上面的循环有git别名,叫做setlinrev和unsetlinrev;当在你的git仓库文件夹中,do(注意讨厌的bash转义,参见#16136745 -添加一个包含分号的git别名):

cat >> .git/config <<"EOF"
[alias]
  setlinrev = "!bash -c 'ix=0; for ih in $(git rev-list --reverse HEAD); do \n\
      TCMD=\"git notes --ref linrev\"; \n\
      TCMD=\"$TCMD add $ih -m \\\"(r\\$((++ix)))\\\"\"; \n\
      #echo \"$TCMD\"; \n\
      eval \"$TCMD\"; \n\
    done; \n\
    echo \"Linear revision notes are set.\" '"

  unsetlinrev = "!bash -c 'ix=0; for ih in $(git rev-list --reverse HEAD); do \n\
      TCMD=\"git notes --ref linrev\"; \n\
      TCMD=\"$TCMD remove $ih\"; \n\
      #echo \"$TCMD\"; \n\
      eval \"$TCMD 2>/dev/null\"; \n\
    done; \n\
    echo \"Linear revision notes are unset.\" '"
EOF

... 所以你可以在尝试做线性修订笔记的日志之前简单地调用git setlinrev;和git unsetlinrev删除这些笔记当你完成;一个来自git repo目录的例子:

$ git log --notes=linrev --format=format:"%h: %an: %ad:  >>%s<< %N" HEAD^..HEAD
04051f9: _user_: Sun Apr 21 18:29:02 2013 +0000:  >>test message 15 <<

$ git setlinrev
Linear revision notes are set.
$ git log --notes=linrev --format=format:"%h: %an: %ad:  >>%s<< %N" HEAD^..HEAD
04051f9: _user_: Sun Apr 21 18:29:02 2013 +0000:  >>test message 15 << (r15)
$ git unsetlinrev
Linear revision notes are unset.

$ git log --notes=linrev --format=format:"%h: %an: %ad:  >>%s<< %N" HEAD^..HEAD
04051f9: _user_: Sun Apr 21 18:29:02 2013 +0000:  >>test message 15 <<

shell完成这些别名所需的时间取决于存储库历史记录的大小。

其他回答

我们使用这个命令从git中获取版本和修订:

git describe --always --tags --dirty

它返回

当没有使用标记时提交哈希作为修订(例如gcc7b71f) 当标签上的标签名称为版本时(例如v2.1.0,用于版本) 标签名称,自上一个标签以来的修订号,以及在标签之后提交哈希(例如v5.3.0-88-gcc7b71f) 如果工作树有局部修改(例如v5.3.0-88-gcc7b71f-dirty),则与上述相同,加上“dirty”标签。

参见:https://www.git-scm.com/docs/git-describe#Documentation/git-describe.txt

使用现代Git(在我的例子中是1.8.3.4)并且不使用分支,你可以做到:

$ git rev-list --count HEAD
68

但这有各种各样的问题,可能不容易重现,或者在需要时不容易回到提交散列。所以尽量避免,或者只把它作为一个暗示。

git describe命令创建一个更容易读懂的名称,用于引用特定的提交。例如,从文档中:

和像少年犯一样的东西。git当前树,我得到: [torvalds@g5 git]$ git描述父 v1.0.4-14-g2414721 例如,我的“父”分支的当前头基于v1.0.4,但由于它在此之上有一些提交,describe在最后添加了额外提交的数量(“14”)和提交本身的缩写对象名称(“2414721”)。

只要您使用合理命名的标记标记特定的版本,就可以认为这大致相当于SVN的“修订号”。

我编写了一些PowerShell实用程序,用于从Git中检索版本信息并简化标记

函数:Get-LastVersion, Get-Revision, Get-NextMajorVersion, Get-NextMinorVersion, TagNextMajorVersion, TagNextMinorVersion:

# Returns the last version by analysing existing tags,
# assumes an initial tag is present, and
# assumes tags are named v{major}.{minor}.[{revision}]
#
function Get-LastVersion(){
  $lastTagCommit = git rev-list --tags --max-count=1
  $lastTag = git describe --tags $lastTagCommit
  $tagPrefix = "v"
  $versionString = $lastTag -replace "$tagPrefix", ""
  Write-Host -NoNewline "last tagged commit "
  Write-Host -NoNewline -ForegroundColor "yellow" $lastTag
  Write-Host -NoNewline " revision "
  Write-Host -ForegroundColor "yellow" "$lastTagCommit"
  [reflection.assembly]::LoadWithPartialName("System.Version")

  $version = New-Object System.Version($versionString)
  return $version;
}

# Returns current revision by counting the number of commits to HEAD
function Get-Revision(){
   $lastTagCommit = git rev-list HEAD
   $revs  = git rev-list $lastTagCommit |  Measure-Object -Line
   return $revs.Lines
}

# Returns the next major version {major}.{minor}.{revision}
function Get-NextMajorVersion(){
    $version = Get-LastVersion;
    [reflection.assembly]::LoadWithPartialName("System.Version")
    [int] $major = $version.Major+1;
    $rev = Get-Revision
    $nextMajor = New-Object System.Version($major, 0, $rev);
    return $nextMajor;
}

# Returns the next minor version {major}.{minor}.{revision}
function Get-NextMinorVersion(){
    $version = Get-LastVersion;
    [reflection.assembly]::LoadWithPartialName("System.Version")
    [int] $minor = $version.Minor+1;
    $rev = Get-Revision
    $next = New-Object System.Version($version.Major, $minor, $rev);
    return $next;
}

# Creates a tag with the next minor version
function TagNextMinorVersion($tagMessage){
    $version = Get-NextMinorVersion;
    $tagName = "v{0}" -f "$version".Trim();
    Write-Host -NoNewline "Tagging next minor version to ";
    Write-Host -ForegroundColor DarkYellow "$tagName";
    git tag -a $tagName -m $tagMessage
}

# Creates a tag with the next major version (minor version starts again at 0)
function TagNextMajorVersion($tagMessage){
    $version = Get-NextMajorVersion;
    $tagName = "v{0}" -f "$version".Trim();
    Write-Host -NoNewline "Tagging next majo version to ";
    Write-Host -ForegroundColor DarkYellow "$tagName";
    git tag -a $tagName -m $tagMessage
}

除了提交的SHA-1 id,服务器时间的日期和时间也有帮助吗?

就像这样:

Commit happened at 11:30:25 on 2013年8月19日将显示为 6886年bbb7be18e63fc4be68ba41917b48f02e09d7_19aug2013_113025