surshar / claude-code

Claude Code is an agentic coding tool that lives in your terminal, understands your codebase, and helps you code faster by executing routine tasks, explaining complex code, and handling git workflows - all through natural language commands.

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claude-code / .devcontainer / cache-github-api.sh

Ben MannAdd GitHub API caching to prevent rate limiting bc84d57 · on Mar 11, 2025 History

109 lines · 3.2 KBRaw

1	#!/bin/bash
2	set -e
3
4	# Script to cache GitHub API data
5	# Used to prevent rate limiting during container builds
6
7	# Configuration
8	# Store cache in the home directory
9	CACHE_DIR="${HOME}/.github-meta-cache"
10	CACHE_FILE="${CACHE_DIR}/meta.json"
11	TIMESTAMP_FILE="${CACHE_DIR}/meta-timestamp.txt"
12	MAX_AGE_SECONDS=3600 # Cache expires after 1 hour
13
14	# Create cache directory if it doesn't exist
15	mkdir -p "${CACHE_DIR}"
16
17	# Function to get current timestamp
18	get_timestamp() {
19	date +%s
20	}
21
22	# Function to check if cache is valid
23	is_cache_valid() {
24	if [[ ! -f "${CACHE_FILE}" \|\| ! -f "${TIMESTAMP_FILE}" ]]; then
25	return 1
26	fi
27
28	local cache_time=$(cat "${TIMESTAMP_FILE}")
29	local current_time=$(get_timestamp)
30	local age=$((current_time - cache_time))
31
32	if [[ ${age} -gt ${MAX_AGE_SECONDS} ]]; then
33	echo "Cache is expired (${age} seconds old)"
34	return 1
35	fi
36
37	echo "Using cached GitHub API data (${age} seconds old)"
38	return 0
39	}
40
41	# Function to fetch data using authenticated gh cli
42	fetch_with_gh() {
43	echo "Attempting to fetch GitHub API data using authenticated gh CLI..."
44	if gh auth status &>/dev/null; then
45	gh api meta > "${CACHE_FILE}" &&
46	get_timestamp > "${TIMESTAMP_FILE}" &&
47	echo "Successfully fetched and cached GitHub API data using gh CLI"
48	return $?
49	else
50	echo "gh CLI not authenticated"
51	return 1
52	fi
53	}
54
55	# Function to fetch data using curl
56	fetch_with_curl() {
57	echo "Attempting to fetch GitHub API data using curl..."
58	# First try with GITHUB_TOKEN if available
59	if [[ -n "${GITHUB_TOKEN}" ]]; then
60	echo "Using GITHUB_TOKEN for authentication"
61	curl -s -H "Authorization: token ${GITHUB_TOKEN}" https://api.github.com/meta > "${CACHE_FILE}" &&
62	get_timestamp > "${TIMESTAMP_FILE}" &&
63	echo "Successfully fetched and cached GitHub API data using curl with token"
64	return $?
65	else
66	# Fall back to unauthenticated request
67	echo "No GITHUB_TOKEN found, making unauthenticated request (may be rate limited)"
68	curl -s https://api.github.com/meta > "${CACHE_FILE}"
69
70	# Check if the response indicates rate limiting
71	if grep -q "API rate limit exceeded" "${CACHE_FILE}"; then
72	echo "Rate limit exceeded for unauthenticated request"
73	return 1
74	else
75	get_timestamp > "${TIMESTAMP_FILE}"
76	echo "Successfully fetched and cached GitHub API data using curl without auth"
77	return 0
78	fi
79	fi
80	}
81
82	# Main logic
83	if is_cache_valid; then
84	echo "Using existing cache from $(cat ${TIMESTAMP_FILE})"
85	exit 0
86	fi
87
88	# Try with gh CLI first
89	if ! fetch_with_gh; then
90	# Fall back to curl
91	if ! fetch_with_curl; then
92	# Both methods failed, check if we have an existing cache file
93	if [[ -f "${CACHE_FILE}" ]]; then
94	echo "Warning: Failed to update cache, using existing cached data (which may be expired)"
95	exit 0
96	else
97	echo "Error: Failed to fetch GitHub API data and no cache exists"
98	exit 1
99	fi
100	fi
101	fi
102
103	# Display a summary of the cached data
104	echo "GitHub API meta data cached successfully. Summary:"
105	jq -r '.domains.actions \| length' "${CACHE_FILE}" > /dev/null 2>&1 &&
106	echo "- Actions domains: $(jq -r '.domains.actions \| length' "${CACHE_FILE}")" \|\|
107	echo "- Could not parse actions domains from cache file"
108
109	exit 0