Extract repository name from GitHub url in bash

Solution 1:

$ url=git://github.com/some-user/my-repo.git
$ basename=$(basename $url)
$ echo $basename
my-repo.git
$ filename=${basename%.*}
$ echo $filename
my-repo
$ extension=${basename##*.}
$ echo $extension
git

Solution 2:

I'd go with basename $URL .git.

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Solution 3:

Old post, but I faced the same problem recently.

The regex ^(https|git)(:\/\/|@)([^\/:]+)[\/:]([^\/:]+)\/(.+).git$ works for the three types of URL.

#!/bin/bash

# url="git://github.com/some-user/my-repo.git"
# url="https://github.com/some-user/my-repo.git"
url="[email protected]:some-user/my-repo.git"

re="^(https|git)(:\/\/|@)([^\/:]+)[\/:]([^\/:]+)\/(.+).git$"

if [[ $url =~ $re ]]; then    
    protocol=${BASH_REMATCH[1]}
    separator=${BASH_REMATCH[2]}
    hostname=${BASH_REMATCH[3]}
    user=${BASH_REMATCH[4]}
    repo=${BASH_REMATCH[5]}
fi

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Explaination (see it in action on regex101):

• ^ matches the start of a string
• (https|git) matches and captures the characters https or git
• (:\/\/|@) matches and captures the characters :// or @
• ([^\/:]+) matches and captures one character or more that is not / nor :
• [\/:] matches one character that is / or :
• ([^\/:]+) matches and captures one character or more that is not / nor :, yet again
• [\/:] matches the character /
• (.+) matches and captures one character or more
• .git matches....git, literally
• $ matches the end of a string

This if far from perfect, as something like [email protected]:some-user/my-repo.git would match, but I think it's fine enough for extraction.

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Solution 4:

Summing up:

• Get url without (optional) suffix:

  url_without_suffix="${url%.*}"
  

• Get repository name:

  reponame="$(basename "${url_without_suffix}")"
  

• Get user (host) name afterwards:

  hostname="$(basename "${url_without_suffix%/${reponame}}")"