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99 lines
3.3 KiB
Bash
99 lines
3.3 KiB
Bash
#!/usr/bin/env bash
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# vim:ts=4:sts=4:sw=4:et
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# args: HariSekhon/DevOps-Bash-tools
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#
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# Author: Hari Sekhon
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# Date: 2022-01-26 19:58:49 +0000 (Wed, 26 Jan 2022)
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#
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# https://github.com/HariSekhon/DevOps-Bash-tools
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#
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# License: see accompanying Hari Sekhon LICENSE file
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#
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# If you're using my code you're welcome to connect with me on LinkedIn and optionally send me feedback to help steer this or other code I publish
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#
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# https://www.linkedin.com/in/HariSekhon
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#
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set -euo pipefail
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[ -n "${DEBUG:-}" ] && set -x
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srcdir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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# shellcheck disable=SC1090
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. "$srcdir/lib/github.sh"
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# shellcheck disable=SC2034,SC2154
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usage_description="
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Finds all GitHub Actions in use in the given repo under .github/workflows/ in the default branch using the GitHub API
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This is useful to combine with github_actions_repo_actions_allow.sh and github_actions_repos_lockdown.sh
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"
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# used by usage() in lib/utils.sh
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# shellcheck disable=SC2034
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usage_args="<owner>/<repo>"
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help_usage "$@"
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min_args 1 "$@"
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repo="$1" # in owner/repo format
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if ! is_github_owner_repo "$repo"; then
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usage "invalid repo format specified, expected owner/repo format"
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fi
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process_contents(){
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local data
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data="$(cat)"
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if [ "$(jq -r '.type' <<< "$data")" != file ]; then
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return 0
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fi
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jq -r '.content' <<< "$data" |
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base64 --decode
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}
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grep_github_actions(){
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# filtering out anything with .github in it as that will be a .github/workflows/file.yaml, not an action
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{ grep -Eo '^[^#]+[[:space:]]uses:.+@[^#[:space:]]+' || : ; } |
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sed '
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s/^[^#]*[[:space:]]uses:[[:space:]]*//;
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s/#.*$//;
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s/[[:space:]]*$//;
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/\.github/d;
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' |
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sort -fu
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}
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timestamp "Checking repo '$repo'"
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# if this gets a 404 then skip there is no such dir and no workflows
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if "$srcdir/github_api.sh" "/repos/$repo/contents/.github/workflows" &>/dev/null; then
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timestamp "GitHub workflows dir found, fetching file list"
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"$srcdir/github_api.sh" "/repos/$repo/contents/.github/workflows" |
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#jq -r '.[] | select(.type == "file") | .download_url' | # this would probably only work for public repos, we need to use the API address to reuse github_api.sh
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jq -r '.[].name' |
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while read -r filename; do
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[[ "$filename" =~ \.ya?ml$ ]] || continue
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#timestamp "Checking '$repo' => ${download_url##*/}"
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timestamp "Checking '$repo' => $filename"
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# Find directly used GitHub Actions
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data="$("$srcdir/github_api.sh" "/repos/$repo/contents/.github/workflows/$filename")"
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contents="$(process_contents <<< "$data")"
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grep_github_actions <<< "$contents"
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# Find GitHub Actions in remote workflow files
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{ grep -Eo '^[^#]+[[:space:]]uses:.+/.github/workflows/.+@[^#[:space:]]+' || : ; } <<< "$contents" |
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sed 's/^[^#]*[[:space:]]uses:[[:space:]]*//; s/#.*$//;' |
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while read -r reusable_workflow; do
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timestamp "Checking reusable workflow: $reusable_workflow"
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reusable_workflow="${reusable_workflow/.github/contents/.github}"
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reusable_workflow="${reusable_workflow/@/?ref=}"
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"$srcdir/github_api.sh" "/repos/$reusable_workflow" |
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process_contents |
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grep_github_actions
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done
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done
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else
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timestamp "No GitHub workflows found in repo '$repo'"
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fi
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