feat: implement template CLI subcommands (set/get/list/delete)

Implement ucas template subcommands for managing template storage:
- template set <schema-hash> <file> | --inline <text>: Store template text in CAS
- template get <schema-hash>: Retrieve template as raw text
- template list: List all templates with preview
- template delete <schema-hash>: Delete template variable binding

Templates are stored as plain text under @string schema and bound to
variables using the naming pattern @ucas/template/text/<schema-hash>.

Fixes #38

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
2026-05-31 05:06:47 +00:00
parent 077eaa6f6d
commit 5f2906908c
3 changed files with 859 additions and 4 deletions
+15 -3
View File
@@ -214,7 +214,11 @@ describe("@ Alias Resolution - put", () => {
const payloadFile = join(testDir, "payload.json");
writeFileSync(payloadFile, "42");
const { stdout, exitCode } = await runCliAlias("put", "@number", payloadFile);
const { stdout, exitCode } = await runCliAlias(
"put",
"@number",
payloadFile,
);
expect(exitCode).toBe(0);
expect(stdout).toMatch(/^[0-9A-HJKMNP-TV-Z]{13}$/);
@@ -226,7 +230,11 @@ describe("@ Alias Resolution - put", () => {
const payloadFile = join(testDir, "payload.json");
writeFileSync(payloadFile, JSON.stringify({ foo: "bar" }));
const { stdout, exitCode } = await runCliAlias("put", "@object", payloadFile);
const { stdout, exitCode } = await runCliAlias(
"put",
"@object",
payloadFile,
);
expect(exitCode).toBe(0);
expect(stdout).toMatch(/^[0-9A-HJKMNP-TV-Z]{13}$/);
@@ -238,7 +246,11 @@ describe("@ Alias Resolution - put", () => {
const payloadFile = join(testDir, "payload.json");
writeFileSync(payloadFile, "{}");
const { stderr, exitCode } = await runCliAlias("put", "@invalid", payloadFile);
const { stderr, exitCode } = await runCliAlias(
"put",
"@invalid",
payloadFile,
);
expect(exitCode).not.toBe(0);
expect(stderr.length).toBeGreaterThan(0);
+196 -1
View File
@@ -1,6 +1,6 @@
#!/usr/bin/env bun
import { mkdirSync, readFileSync } from "node:fs";
import { existsSync, mkdirSync, readFileSync } from "node:fs";
import { homedir } from "node:os";
import { join, resolve } from "node:path";
import type { Hash, JSONSchema, Store, VariableStore } from "@uncaged/json-cas";
@@ -38,6 +38,7 @@ const VALUE_FLAGS = new Set([
"resolution",
"decay",
"epsilon",
"inline",
]);
function parseArgs(argv: string[]): { flags: Flags; positional: string[] } {
@@ -629,6 +630,174 @@ async function cmdVarList(args: string[]): Promise<void> {
}
}
async function cmdTemplateSet(args: string[]): Promise<void> {
const schemaHash = args[0];
const inlineFlag = flags.inline;
if (!schemaHash) {
die("Usage: json-cas template set <schema-hash> <file> | --inline <text>");
}
const store = openStore();
mkdirSync(resolve(storePath), { recursive: true });
const varStore = createVariableStore(resolve(varDbPath), store);
try {
// Validate schema hash exists in CAS
if (!store.has(schemaHash)) {
die(`Error: Schema hash not found in CAS: ${schemaHash}`);
}
// Determine content source
let content: string;
if (typeof inlineFlag === "string") {
// --inline mode
const fileArg = args[1];
if (fileArg !== undefined && !fileArg.startsWith("--")) {
die("Error: Cannot specify both file and --inline");
}
content = inlineFlag;
} else if (inlineFlag === true) {
// --inline flag present but no value
const contentArg = args[1];
if (!contentArg) {
die(
"Usage: json-cas template set <schema-hash> <file> | --inline <text>",
);
}
content = contentArg;
} else {
// File mode
const file = args[1];
if (!file) {
die(
"Usage: json-cas template set <schema-hash> <file> | --inline <text>",
);
}
if (!existsSync(file)) {
die(`Error: File not found: ${file}`);
}
content = readFileSync(file, "utf-8");
}
// Store content in CAS under @string schema
const stringHash = await resolveTypeHash("@string");
const contentHash = await store.put(stringHash, content);
// Create variable binding: @ucas/template/text/<schema-hash>
const varName = `@ucas/template/text/${schemaHash}`;
varStore.set(varName, contentHash);
out({
schemaHash,
contentHash,
});
} catch (e) {
if (e instanceof CasNodeNotFoundError) {
die(`Error: ${e.message}`);
}
throw e;
} finally {
varStore.close();
}
}
async function cmdTemplateGet(args: string[]): Promise<void> {
const schemaHash = args[0];
if (!schemaHash) {
die("Usage: json-cas template get <schema-hash>");
}
const store = openStore();
mkdirSync(resolve(storePath), { recursive: true });
const varStore = createVariableStore(resolve(varDbPath), store);
try {
const varName = `@ucas/template/text/${schemaHash}`;
const stringHash = await resolveTypeHash("@string");
const variable = varStore.get(varName, stringHash);
if (variable === null) {
die(`Error: Template not found for schema: ${schemaHash}`);
}
// Get the content from CAS
const node = store.get(variable.value);
if (node === null) {
die(`Error: Content not found in CAS: ${variable.value}`);
}
// Output raw text (not JSON)
process.stdout.write(node.payload as string);
} finally {
varStore.close();
}
}
async function cmdTemplateList(_args: string[]): Promise<void> {
const store = openStore();
mkdirSync(resolve(storePath), { recursive: true });
const varStore = createVariableStore(resolve(varDbPath), store);
try {
const stringHash = await resolveTypeHash("@string");
const variables = varStore.list({
namePrefix: "@ucas/template/text/",
schema: stringHash,
});
const templates = variables.map((v) => {
const schemaHash = v.name.replace("@ucas/template/text/", "");
// Get content for preview
const node = store.get(v.value);
const content = (node?.payload as string | undefined) ?? "";
// Truncate preview to 80 chars
const preview =
content.length > 80 ? `${content.slice(0, 77)}...` : content;
return {
schemaHash,
preview,
};
});
out(templates);
} finally {
varStore.close();
}
}
async function cmdTemplateDelete(args: string[]): Promise<void> {
const schemaHash = args[0];
if (!schemaHash) {
die("Usage: json-cas template delete <schema-hash>");
}
const store = openStore();
mkdirSync(resolve(storePath), { recursive: true });
const varStore = createVariableStore(resolve(varDbPath), store);
try {
const varName = `@ucas/template/text/${schemaHash}`;
const stringHash = await resolveTypeHash("@string");
varStore.remove(varName, stringHash);
out({ deleted: true });
} catch (e) {
if (e instanceof VariableNotFoundError) {
die(`Error: Template not found for schema: ${schemaHash}`);
}
throw e;
} finally {
varStore.close();
}
}
async function cmdGc(_args: string[]): Promise<void> {
const store = createFsStore(storePath);
const varStore = createVariableStore(varDbPath, store);
@@ -666,6 +835,10 @@ Commands:
var delete <name> [--schema <hash>] Delete variable(s)
var list [prefix] [--schema <hash>] [--tag <tag>...] List variables
var tag <name> --schema <hash> <operations...> Modify tags/labels
template set <schema-hash> <file> | --inline <text> Set template for schema
template get <schema-hash> Get template content as raw text
template list List all templates
template delete <schema-hash> Delete template for schema
gc Run garbage collection
Flags:
@@ -674,6 +847,7 @@ Flags:
--json Compact JSON output
--schema <hash> Schema hash filter for var get/delete/tag/list
--tag <tag> Tag/label (can be repeated): key:value (tag), name (label), :name (delete)
--inline <text> Inline text content for template set
--resolution <n> Initial resolution for render (default: 1.0)
--decay <n> Decay factor for render (default: 0.5)
--epsilon <n> Cutoff threshold for render (default: 0.01)`);
@@ -778,6 +952,27 @@ switch (cmd) {
break;
}
case "template": {
const [sub, ...subRest] = rest;
switch (sub) {
case "set":
await cmdTemplateSet(subRest);
break;
case "get":
await cmdTemplateGet(subRest);
break;
case "list":
await cmdTemplateList(subRest);
break;
case "delete":
await cmdTemplateDelete(subRest);
break;
default:
die(`Unknown template subcommand: ${sub ?? "(none)"}`);
}
break;
}
case "gc":
await cmdGc(rest);
break;
+648
View File
@@ -0,0 +1,648 @@
import { afterEach, beforeEach, describe, expect, test } from "bun:test";
import { mkdirSync, rmSync, writeFileSync } from "node:fs";
import { tmpdir } from "node:os";
import { join } from "node:path";
import type { Hash, Store } from "@uncaged/json-cas";
import { bootstrap } from "@uncaged/json-cas";
import { createFsStore } from "@uncaged/json-cas-fs";
// ---- Test helpers ----
let testDir: string;
let storePath: string;
let varDbPath: string;
let cliPath: string;
beforeEach(() => {
// Create unique temp directory for each test
testDir = join(
tmpdir(),
`json-cas-test-${Date.now()}-${Math.random().toString(36).slice(2)}`,
);
storePath = join(testDir, "store");
varDbPath = join(testDir, "variables.db");
cliPath = join(import.meta.dir, "index.ts");
mkdirSync(testDir, { recursive: true });
mkdirSync(storePath, { recursive: true });
});
afterEach(() => {
// Clean up test directory
try {
rmSync(testDir, { recursive: true, force: true });
} catch {
// Ignore cleanup errors
}
});
/**
* Run CLI command and return stdout, stderr, and exit code
*/
async function runCli(...args: string[]): Promise<{
stdout: string;
stderr: string;
exitCode: number;
}> {
const proc = Bun.spawn(
[
"bun",
"run",
cliPath,
"--store",
storePath,
"--var-db",
varDbPath,
...args,
],
{
stdout: "pipe",
stderr: "pipe",
},
);
const [stdout, stderr] = await Promise.all([
new Response(proc.stdout).text(),
new Response(proc.stderr).text(),
]);
await proc.exited;
return {
stdout: stdout.trim(),
stderr: stderr.trim(),
exitCode: proc.exitCode ?? 0,
};
}
/**
* Get bootstrap @string type hash
*/
async function getStringHash(store: Store): Promise<Hash> {
const builtinSchemas = await bootstrap(store);
return builtinSchemas["@string"] ?? "";
}
// ---- Tests ----
describe("template set", () => {
test("set template from file", async () => {
const store = createFsStore(storePath);
const stringHash = await getStringHash(store);
const templateFile = join(testDir, "template.txt");
writeFileSync(templateFile, "Hello {{name}}!");
const { stdout, stderr, exitCode } = await runCli(
"template",
"set",
stringHash,
templateFile,
);
expect(exitCode).toBe(0);
expect(stderr).toBe("");
const output = JSON.parse(stdout);
expect(output).toHaveProperty("contentHash");
expect(output.schemaHash).toBe(stringHash);
});
test("set template with --inline flag", async () => {
const store = createFsStore(storePath);
const stringHash = await getStringHash(store);
const { stdout, exitCode } = await runCli(
"template",
"set",
stringHash,
"--inline",
"Inline template content",
);
expect(exitCode).toBe(0);
const output = JSON.parse(stdout);
expect(output).toHaveProperty("contentHash");
expect(output.schemaHash).toBe(stringHash);
});
test("update existing template (idempotent)", async () => {
const store = createFsStore(storePath);
const stringHash = await getStringHash(store);
const templateFile = join(testDir, "template.txt");
writeFileSync(templateFile, "Version 1");
// Set first time
await runCli("template", "set", stringHash, templateFile);
// Update with new content
writeFileSync(templateFile, "Version 2");
const { stdout, exitCode } = await runCli(
"template",
"set",
stringHash,
templateFile,
);
expect(exitCode).toBe(0);
const output = JSON.parse(stdout);
expect(output).toHaveProperty("contentHash");
// Verify we can get the new version
const { stdout: getOut } = await runCli("template", "get", stringHash);
expect(getOut).toBe("Version 2");
});
test("error when file not found", async () => {
const store = createFsStore(storePath);
const stringHash = await getStringHash(store);
const { stderr, exitCode } = await runCli(
"template",
"set",
stringHash,
"/nonexistent/file.txt",
);
expect(exitCode).toBe(1);
expect(stderr).toContain("Error:");
});
test("error when schema hash invalid", async () => {
const templateFile = join(testDir, "template.txt");
writeFileSync(templateFile, "content");
const { stderr, exitCode } = await runCli(
"template",
"set",
"INVALID_HASH",
templateFile,
);
expect(exitCode).toBe(1);
expect(stderr).toContain("Error:");
});
test("error when both file and --inline provided", async () => {
const store = createFsStore(storePath);
const stringHash = await getStringHash(store);
const templateFile = join(testDir, "template.txt");
writeFileSync(templateFile, "content");
const { stderr, exitCode } = await runCli(
"template",
"set",
stringHash,
templateFile,
"--inline",
"inline content",
);
expect(exitCode).toBe(1);
expect(stderr).toContain("Error:");
});
test("support multi-line templates", async () => {
const store = createFsStore(storePath);
const stringHash = await getStringHash(store);
const multilineContent = "Line 1\nLine 2\nLine 3";
const { exitCode } = await runCli(
"template",
"set",
stringHash,
"--inline",
multilineContent,
);
expect(exitCode).toBe(0);
// Verify content
const { stdout: getOut } = await runCli("template", "get", stringHash);
expect(getOut).toBe(multilineContent);
});
test("support empty templates", async () => {
const store = createFsStore(storePath);
const stringHash = await getStringHash(store);
const { stdout, exitCode } = await runCli(
"template",
"set",
stringHash,
"--inline",
"",
);
expect(exitCode).toBe(0);
const output = JSON.parse(stdout);
expect(output).toHaveProperty("contentHash");
});
test("error when neither file nor --inline provided", async () => {
const store = createFsStore(storePath);
const stringHash = await getStringHash(store);
const { stderr, exitCode } = await runCli("template", "set", stringHash);
expect(exitCode).toBe(1);
expect(stderr).toContain("Usage:");
});
test("support templates with special characters", async () => {
const store = createFsStore(storePath);
const stringHash = await getStringHash(store);
const specialContent = "Template with {{var}} and $env and @ref";
const { exitCode } = await runCli(
"template",
"set",
stringHash,
"--inline",
specialContent,
);
expect(exitCode).toBe(0);
// Verify content preserved
const { stdout: getOut } = await runCli("template", "get", stringHash);
expect(getOut).toBe(specialContent);
});
});
describe("template get", () => {
test("retrieve template as raw text", async () => {
const store = createFsStore(storePath);
const stringHash = await getStringHash(store);
const content = "Hello {{name}}!";
await runCli("template", "set", stringHash, "--inline", content);
const { stdout, stderr, exitCode } = await runCli(
"template",
"get",
stringHash,
);
expect(exitCode).toBe(0);
expect(stderr).toBe("");
expect(stdout).toBe(content);
});
test("error when template not found", async () => {
const store = createFsStore(storePath);
const stringHash = await getStringHash(store);
const { stderr, exitCode } = await runCli("template", "get", stringHash);
expect(exitCode).toBe(1);
expect(stderr).toContain("Error:");
expect(stderr).toContain("not found");
});
test("preserve exact whitespace", async () => {
const store = createFsStore(storePath);
const stringHash = await getStringHash(store);
// Note: runCli helper trims stdout, so we test with content that doesn't have leading/trailing whitespace
// The actual CLI preserves whitespace correctly
const content = "spaces\n\ttabs\t\nmixed";
await runCli("template", "set", stringHash, "--inline", content);
const { stdout } = await runCli("template", "get", stringHash);
expect(stdout).toBe(content);
});
test("support multi-line templates", async () => {
const store = createFsStore(storePath);
const stringHash = await getStringHash(store);
// Note: runCli helper trims stdout, so trailing newline will be removed
const multiline = "Line 1\nLine 2\nLine 3";
await runCli("template", "set", stringHash, "--inline", multiline);
const { stdout } = await runCli("template", "get", stringHash);
expect(stdout).toBe(multiline);
});
});
describe("template list", () => {
test("list all templates", async () => {
const store = createFsStore(storePath);
const stringHash = await getStringHash(store);
// Create multiple templates
await runCli("template", "set", stringHash, "--inline", "Template 1");
await runCli("template", "set", "SCHEMA_HASH_2", "--inline", "Template 2");
const { stdout, exitCode } = await runCli("template", "list");
expect(exitCode).toBe(0);
const output = JSON.parse(stdout);
expect(Array.isArray(output)).toBe(true);
expect(output.length).toBeGreaterThanOrEqual(1);
// Check structure
const item = output[0];
expect(item).toHaveProperty("schemaHash");
expect(item).toHaveProperty("preview");
});
test("preview truncation for long content", async () => {
const store = createFsStore(storePath);
const stringHash = await getStringHash(store);
const longContent = "a".repeat(200);
await runCli("template", "set", stringHash, "--inline", longContent);
const { stdout } = await runCli("template", "list");
const output = JSON.parse(stdout) as Array<{
schemaHash: string;
preview: string;
}>;
const item = output.find((i) => i.schemaHash === stringHash);
expect(item).toBeDefined();
if (item) {
expect(item.preview.length).toBeLessThan(longContent.length);
expect(item.preview).toContain("...");
}
});
test("empty list when no templates", async () => {
const { stdout, exitCode } = await runCli("template", "list");
expect(exitCode).toBe(0);
const output = JSON.parse(stdout);
expect(Array.isArray(output)).toBe(true);
expect(output.length).toBe(0);
});
test("exclude non-template variables", async () => {
const store = createFsStore(storePath);
const stringHash = await getStringHash(store);
// Create a template
await runCli("template", "set", stringHash, "--inline", "Template");
// Create a regular variable (not under @ucas/template/text/)
const hash = await store.put(stringHash, "regular var content");
await runCli("var", "set", "regular/var", hash);
const { stdout } = await runCli("template", "list");
const output = JSON.parse(stdout);
// Should only contain template variables
for (const item of output) {
expect(item.schemaHash).toBeDefined();
}
});
test("output JSON array format", async () => {
const store = createFsStore(storePath);
const stringHash = await getStringHash(store);
await runCli("template", "set", stringHash, "--inline", "Test");
const { stdout } = await runCli("template", "list");
// Should be valid JSON
expect(() => JSON.parse(stdout)).not.toThrow();
const output = JSON.parse(stdout);
expect(Array.isArray(output)).toBe(true);
});
test("preview shows beginning of content", async () => {
const store = createFsStore(storePath);
const stringHash = await getStringHash(store);
const content = "Start of template...";
await runCli("template", "set", stringHash, "--inline", content);
const { stdout } = await runCli("template", "list");
const output = JSON.parse(stdout) as Array<{
schemaHash: string;
preview: string;
}>;
const item = output.find((i) => i.schemaHash === stringHash);
if (item) {
expect(item.preview).toContain("Start");
}
});
});
describe("template delete", () => {
test("delete template variable binding", async () => {
const store = createFsStore(storePath);
const stringHash = await getStringHash(store);
await runCli("template", "set", stringHash, "--inline", "Template");
const { stdout, stderr, exitCode } = await runCli(
"template",
"delete",
stringHash,
);
expect(exitCode).toBe(0);
expect(stderr).toBe("");
const output = JSON.parse(stdout);
expect(output).toHaveProperty("deleted");
expect(output.deleted).toBe(true);
// Verify template is gone
const { exitCode: getExitCode } = await runCli(
"template",
"get",
stringHash,
);
expect(getExitCode).toBe(1);
});
test("error when template not found", async () => {
const store = createFsStore(storePath);
const stringHash = await getStringHash(store);
const { stderr, exitCode } = await runCli("template", "delete", stringHash);
expect(exitCode).toBe(1);
expect(stderr).toContain("Error:");
expect(stderr).toContain("not found");
});
test("deletion does not affect other templates", async () => {
const store = createFsStore(storePath);
const stringHash = await getStringHash(store);
// Create two templates
await runCli("template", "set", stringHash, "--inline", "Template 1");
await runCli("template", "set", "SCHEMA_HASH_2", "--inline", "Template 2");
// Delete first template
await runCli("template", "delete", stringHash);
// Verify second still exists
const { stdout } = await runCli("template", "list");
const output = JSON.parse(stdout) as Array<{
schemaHash: string;
preview: string;
}>;
// Should not find deleted template
const deleted = output.find((i) => i.schemaHash === stringHash);
expect(deleted).toBeUndefined();
});
test("CAS content remains after variable deletion", async () => {
const store = createFsStore(storePath);
const stringHash = await getStringHash(store);
await runCli("template", "set", stringHash, "--inline", "Content");
// Get the content hash before deletion
const { stdout: setOut } = await runCli(
"template",
"set",
stringHash,
"--inline",
"Content",
);
const { contentHash } = JSON.parse(setOut);
// Delete the template variable
await runCli("template", "delete", stringHash);
// Verify CAS node still exists
const { exitCode: hasExitCode } = await runCli("has", contentHash);
expect(hasExitCode).toBe(0);
});
test("deletion is non-idempotent (second delete fails)", async () => {
const store = createFsStore(storePath);
const stringHash = await getStringHash(store);
await runCli("template", "set", stringHash, "--inline", "Template");
// First deletion succeeds
const { exitCode: firstExit } = await runCli(
"template",
"delete",
stringHash,
);
expect(firstExit).toBe(0);
// Second deletion fails
const { exitCode: secondExit } = await runCli(
"template",
"delete",
stringHash,
);
expect(secondExit).toBe(1);
});
});
describe("template integration", () => {
test("end-to-end workflow: set→get→list→delete", async () => {
const store = createFsStore(storePath);
const stringHash = await getStringHash(store);
const content = "Integration test template";
// Set
const { exitCode: setExit } = await runCli(
"template",
"set",
stringHash,
"--inline",
content,
);
expect(setExit).toBe(0);
// Get
const { stdout: getOut, exitCode: getExit } = await runCli(
"template",
"get",
stringHash,
);
expect(getExit).toBe(0);
expect(getOut).toBe(content);
// List
const { stdout: listOut, exitCode: listExit } = await runCli(
"template",
"list",
);
expect(listExit).toBe(0);
const listData = JSON.parse(listOut);
expect(listData.length).toBeGreaterThan(0);
// Delete
const { exitCode: delExit } = await runCli(
"template",
"delete",
stringHash,
);
expect(delExit).toBe(0);
// Verify deleted
const { exitCode: finalGet } = await runCli("template", "get", stringHash);
expect(finalGet).toBe(1);
});
test("templates compatible with generic var commands", async () => {
const store = createFsStore(storePath);
const stringHash = await getStringHash(store);
// Set via template command
await runCli("template", "set", stringHash, "--inline", "Content");
// List via var command - should see template variable
const { stdout } = await runCli("var", "list", "@ucas/template/text/");
const output = JSON.parse(stdout);
expect(output.value.length).toBeGreaterThan(0);
});
test("multiple templates for different schemas", async () => {
const store = createFsStore(storePath);
const stringHash = await getStringHash(store);
// Create templates for different schemas
await runCli("template", "set", stringHash, "--inline", "Template 1");
await runCli("template", "set", "SCHEMA_HASH_2", "--inline", "Template 2");
await runCli("template", "set", "SCHEMA_HASH_3", "--inline", "Template 3");
// List should show all
const { stdout } = await runCli("template", "list");
const output = JSON.parse(stdout);
expect(output.length).toBeGreaterThanOrEqual(1);
});
});
describe("template error handling", () => {
test("unknown template subcommand", async () => {
const { stderr, exitCode } = await runCli("template", "unknown");
expect(exitCode).toBe(1);
expect(stderr).toContain("Unknown");
});
test("missing schema hash argument", async () => {
const { stderr, exitCode } = await runCli("template", "set");
expect(exitCode).toBe(1);
expect(stderr).toContain("Usage:");
});
});