Check if current directory is a Git repository

Question

I am writing a series of scripts for Git management in zsh   How do I check if the current directory is a Git repository   When I m not in a Git repo  I don t want to execute a bunch of commands and get a bunch of fatal  Not a git repository responses

User · Answer

check if git repo  if     git rev-parse --is-inside-work-tree    true    then     echo  yes  is a git repo      git pull else     echo  no  is not a git repo      git clone url --depth 1 fi

User · Answer

Another solution is to check for the command s exit code   git rev-parse 2 gt   dev null          0    amp  amp  echo 1   This will print 1 if you re in a git repository folder

User · Answer

Not sure if there is a publicly accessible documented way to do this  there are some internal git functions which you can use abuse in the git source itself   You could do something like   if   git ls-files  gt  amp   dev null  then   echo  not in git  fi

User · Answer

You can use   git rev-parse --is-inside-work-tree   Which will print  true  if you are in a git repos working tree   Note that it still returns output to STDERR if you are outside of a git repo  and does not print  false     Taken from this answer  https   stackoverflow com a 2044714 12983

User · Answer

if        pwd      git        pwd      git     then    if type -P git  gt  dev null  then       git rev-parse --is-inside-work-tree  gt  dev null 2 gt  amp 1           printf   n s n n   GIT repository detected    amp  amp  git status         fi fi   Thank you ivan pozdeev  Now I have a test if inside the  git directory the code will not run so no errors printed out or false exit status    The         pwd     git       pwd      git     tests if you re not inside a  git repo then it will run the git command  The builtin type command is use to check if you have git installed or it is within your PATH  see help type

User · Answer

Use git rev-parse --git-dir   if git rev-parse --git-dir    dev null 2  1  then       This is a valid git repository  but the current working       directory may not be the top level        Check the output of the git rev-parse command if you care  else       this is not a git repository fi

User · Answer

this works for me  You still get the errors but they re easy enough to suppress  it also works from within subfolders   git status   dev null 2  amp 1  amp  amp  echo Hello World   You can put this in an if then statement if you need to conditionally do more

User · Answer

Why not using exit codes  If a git repository exists in the current directory  then git branch and git tag commands return exit code of 0  otherwise  a non-zero exit code will be returned  This way  you can determine if a git repository exist or not  Simply  you can run   git tag  gt   dev null 2 gt  amp 1  amp  amp       -eq 0     Advantage  Flexibe  It works for both bare and non-bare repositories  and in sh  zsh and bash   Explanation   git tag  Getting tags of the repository to determine if exists or not   gt   dev null 2 gt  amp 1  Preventing from printing anything  including normal and error outputs       -eq 0    Check if the previous command returned with exit code 0 or not  As you may know  every non-zero exit means something bad happened     gets the exit code of the previous command  and    -eq and   perform the comparison    As an example  you can create a file named check-git-repo with the following contents  make it executable and run it      bin sh  if git tag  gt   dev null 2 gt  amp 1  amp  amp       -eq 0    then     echo  Repository exists    else     echo  No repository here    fi

User · Answer

This answer provides a sample POSIX shell function and a usage example to complement  jabbie s answer   is inside git repo         git rev-parse --is-inside-work-tree  gt  dev null 2 gt  amp 1     git returns errorlevel 0 if it is inside a git repository  else it returns errorlevel 128    It also returns true or false if it is inside a git repository    Usage example  for repo in    do       skip files       -d   repo       continue       run commands in subshell so each loop starts in the current dir               cd   repo            skip plain directories         is inside git repo    continue         printf      s    n    repo          git remote update --prune  origin    example command           other commands here       done

User · Answer

Or you could do this   inside git repo    git rev-parse --is-inside-work-tree 2 gt  dev null    if     inside git repo     then   echo  inside git repo  else   echo  not in git repo  fi

User · Answer

Copied from the bash completion file  the following is a naive way to do it    Copyright  C  2006 2007 Shawn O  Pearce  lt spearce spearce org gt    Conceptually based on gitcompletion  http   gitweb hawaga org uk      Distributed under the GNU General Public License  version 2 0   if   -d  git    then   echo  git  else   git rev-parse --git-dir 2 gt   dev null  fi    You could either wrap that in a function or use it in a script   Condensed into a one line condition suitable for bash and zsh    -d  git    amp  amp  echo  git    git rev-parse --git-dir  gt   dev null 2 gt  amp 1

User · Answer

Based on  Alex Cory s answer        git rev-parse --is-inside-work-tree 2 gt  dev null       true      doesn t contain any redundant operations and works in -e mode    As  go2null noted  this will not work in a bare repo  If you want to work with a bare repo for whatever reason  you can just check for git rev-parse succeeding  ignoring its output    I don t consider this a drawback because the above line is indended for scripting  and virtually all git commands are only valid inside a worktree  So for scripting purposes  you re most likely interested in being not just inside a  git repo  but inside a worktree

[git] Check if current directory is a Git repository

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