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| 1 | +// @ts-check |
| 2 | +/// <reference types="@actions/github-script" /> |
| 3 | + |
| 4 | +const fs = require("fs"); |
| 5 | +const path = require("path"); |
| 6 | + |
| 7 | +/** |
| 8 | + * @param {string} rawSkills |
| 9 | + * @returns {string[]} |
| 10 | + */ |
| 11 | +function parseSkillSpecs(rawSkills) { |
| 12 | + return (rawSkills || "") |
| 13 | + .split(/\r?\n/) |
| 14 | + .map(skill => skill.trim()) |
| 15 | + .filter(Boolean); |
| 16 | +} |
| 17 | + |
| 18 | +/** |
| 19 | + * @typedef {{args: string[]; displaySpec: string}} SkillInstallCommand |
| 20 | + */ |
| 21 | + |
| 22 | +/** |
| 23 | + * @param {string} skillSpec |
| 24 | + * @param {string} skillsDst |
| 25 | + * @returns {SkillInstallCommand} |
| 26 | + */ |
| 27 | +function buildSkillInstallCommand(skillSpec, skillsDst) { |
| 28 | + const atIndex = skillSpec.lastIndexOf("@"); |
| 29 | + const hasPin = atIndex >= 0; |
| 30 | + const skillBase = hasPin ? skillSpec.slice(0, atIndex) : skillSpec; |
| 31 | + const skillRef = hasPin ? skillSpec.slice(atIndex + 1) : ""; |
| 32 | + const parts = skillBase.split("/"); |
| 33 | + const pinArgs = skillRef ? ["--pin", skillRef] : []; |
| 34 | + |
| 35 | + if (parts.length >= 3) { |
| 36 | + return { |
| 37 | + displaySpec: skillSpec, |
| 38 | + args: ["skill", "install", `${parts[0]}/${parts[1]}`, parts.slice(2).join("/"), ...pinArgs, "--dir", skillsDst, "--force"], |
| 39 | + }; |
| 40 | + } |
| 41 | + |
| 42 | + if (parts.length === 2) { |
| 43 | + return { |
| 44 | + displaySpec: skillSpec, |
| 45 | + args: ["skill", "install", skillBase, "--all", ...pinArgs, "--dir", skillsDst, "--force"], |
| 46 | + }; |
| 47 | + } |
| 48 | + |
| 49 | + return { |
| 50 | + displaySpec: skillSpec, |
| 51 | + args: ["skill", "install", skillSpec, "--dir", skillsDst, "--force"], |
| 52 | + }; |
| 53 | +} |
| 54 | + |
| 55 | +/** |
| 56 | + * @param {string} skillsDst |
| 57 | + * @returns {number} |
| 58 | + */ |
| 59 | +function countInstalledSkillFiles(skillsDst) { |
| 60 | + if (!fs.existsSync(skillsDst)) { |
| 61 | + return 0; |
| 62 | + } |
| 63 | + |
| 64 | + let count = 0; |
| 65 | + const stack = [skillsDst]; |
| 66 | + while (stack.length > 0) { |
| 67 | + const currentDir = stack.pop(); |
| 68 | + if (!currentDir) { |
| 69 | + continue; |
| 70 | + } |
| 71 | + for (const entry of fs.readdirSync(currentDir, { withFileTypes: true })) { |
| 72 | + const entryPath = path.join(currentDir, entry.name); |
| 73 | + if (entry.isDirectory()) { |
| 74 | + stack.push(entryPath); |
| 75 | + continue; |
| 76 | + } |
| 77 | + if (entry.isFile() && entry.name === "SKILL.md") { |
| 78 | + count++; |
| 79 | + } |
| 80 | + } |
| 81 | + } |
| 82 | + |
| 83 | + return count; |
| 84 | +} |
| 85 | + |
| 86 | +/** |
| 87 | + * @param {string} skillDir |
| 88 | + * @param {string[]} skills |
| 89 | + * @param {number} installedSkillCount |
| 90 | + * @returns {Promise<void>} |
| 91 | + */ |
| 92 | +async function writeSkillSummary(skillDir, skills, installedSkillCount) { |
| 93 | + core.summary |
| 94 | + .addRaw("### Frontmatter skills installed\n\n") |
| 95 | + .addRaw(`- Engine skill directory: \`${skillDir}\`\n`) |
| 96 | + .addRaw(`- Requested references: \`${JSON.stringify(skills)}\`\n`) |
| 97 | + .addRaw(`- Installed SKILL.md files: ${installedSkillCount}\n`); |
| 98 | + await core.summary.write(); |
| 99 | +} |
| 100 | + |
| 101 | +async function main() { |
| 102 | + const skillDir = process.env.GH_AW_SKILL_DIR || ""; |
| 103 | + const skills = parseSkillSpecs(process.env.GH_AW_FRONTMATTER_SKILLS || ""); |
| 104 | + const skillsDst = path.join("/tmp/gh-aw", skillDir); |
| 105 | + |
| 106 | + fs.mkdirSync(skillsDst, { recursive: true }); |
| 107 | + |
| 108 | + core.info(`Installing frontmatter skills to ${skillsDst}`); |
| 109 | + core.info("Existing skills at destination may be replaced (--force) to ensure pinned refs are up to date"); |
| 110 | + |
| 111 | + for (const skillSpec of skills) { |
| 112 | + core.info(`Installing skill reference: ${skillSpec}`); |
| 113 | + const command = buildSkillInstallCommand(skillSpec, skillsDst); |
| 114 | + await exec.exec("gh", command.args); |
| 115 | + } |
| 116 | + |
| 117 | + const installedSkillCount = countInstalledSkillFiles(skillsDst); |
| 118 | + core.info(`Installed ${installedSkillCount} skill file(s)`); |
| 119 | + await writeSkillSummary(skillDir, skills, installedSkillCount); |
| 120 | +} |
| 121 | + |
| 122 | +module.exports = { main, parseSkillSpecs, buildSkillInstallCommand, countInstalledSkillFiles }; |
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