I'm using git diff to return the file names of files recently changed and l’m trying to pipe the returned file names into a grep expression that searches each file and returns the files that have "*.yml" in the file name and "- name:" in the actual file. However it seems like my code only returns all the files in the directory that match the conditions, basically ignoring the git diff.
files=($(git -C ${dir} diff --name-only HEAD^ HEAD | grep -rlw --include="*.yml" --exclude-dir=$excluded -e "- name:"))
Any help would appreciated!
EDIT: Solved! By removing the recursion and setting the git diff to a different variable, the correct list was returned.
git_diff_files=($(git -C ${prov_dir} diff --name-only HEAD^ HEAD))
changed_files_full=($(printf "${dir}/%s " "${git_diff_files[@]}" ))
changed_files_ansible=($(find "${changed_files_full[@]}" -type f -print0 | xargs -0 grep -lw --include="*.yml" --exclude-dir="$excluded" -e "- name:"))
Use this, using the best practices to feed an array, and avoid the form:
arr=( $(cmd) )
instead, use:
read -ra files < <(
git -z -C "$dir" diff --name-only HEAD^ HEAD | grep -z '\.yml$'
)
printf '%s\n' "${files[@]}"
The -z from git & grep are meant to parse even files with newlines or special characters.