notebook/IT/git/Git.md

git

Add in staging only a part of modification done in a file

git add -p

this will ask if you want to add each modification with this option:

• y - Yes, add this hunk
• n - No, don’t add this hunk
• d - No, don’t add this hunk and all other remaining hunks. Useful if you’ve already added what you want to, and want to skip over the rest
• s - Split the hunk into smaller hunks. This only works if there’s unchanged lines between the changes in the displayed hunk, so this wouldn’t have any effect in the example above
• e - Manually edit the hunk. This is probably the most powerful option. As promised, it will open the hunk in a text editor and you can edit it to your hearts content

delete a file only from git repository

git rm -rf --cached

delete a file from complete history

be carefull can't push repo last time use

git filter-branch --tree-filter 'rm -f passwords.txt' HEAD

changing email adress

$ git filter-branch --commit-filter '
        if [ "$GIT_AUTHOR_EMAIL" = "schacon@localhost" ];
        then
                GIT_AUTHOR_NAME="Scott Chacon";
                GIT_AUTHOR_EMAIL="schacon@example.com";
                git commit-tree "$@";
        else
                git commit-tree "$@";
        fi' HEAD

example de déclencheur git dans un dépot git

#!/bin/bash
GIT_REPO=`pwd`
SITE_NAME=notebook
TMP_GIT_CLONE="/tmp/$SITE_NAME"
PUBLIC_WWW="/usr/share/nginx/html/$SITE_NAME"
# get branch name
if ! [ -t 0 ]; then
  read -a ref
fi
IFS='/' read -ra REF <<< "${ref[2]}"
branch="${REF[2]}"

if [ "master" == "$branch" ]; then
mkdir -p $TMP_GIT_CLONE
echo "download repo"
git clone --recursive $GIT_REPO $TMP_GIT_CLONE
cd $TMP_GIT_CLONE
export PATH="$HOME/.local/bin:$PATH"
make install -e BUILDDIR=$PUBLIC_WWW
echo "Cleaning up"
rm -Rf $TMP_GIT_CLONE
fi
exit