Allow to specify range specification instead of fixed version (#38)

That allows to install for example the latest bug-fix version of
terraform 1.12.* even if 1.13 is already installed.

Co-authored-by: Matthew Sanabria <24284972+sudomateo@users.noreply.github.com>

test/setup-terraform.test.js

@@ -68,11 +68,11 @@ describe('Setup Terraform', () => {
       .get('/terraform/index.json')
       .reply(200, json);
 
-    await setup();
+    const versionObj = await setup();
+    expect(versionObj.version).toEqual('0.1.1');
 
     // downloaded CLI has been added to path
     expect(core.addPath).toHaveBeenCalled();
-
     // expect credentials are in ${HOME}.terraformrc
     const creds = await fs.readFile(`${process.env.HOME}/.terraformrc`, { encoding: 'utf8' });
     expect(creds.indexOf(credentialsHostname)).toBeGreaterThan(-1);
@@ -110,7 +110,8 @@ describe('Setup Terraform', () => {
       .get('/terraform/index.json')
       .reply(200, json);
 
-    await setup();
+    const versionObj = await setup();
+    expect(versionObj.version).toEqual('0.1.1');
 
     // downloaded CLI has been added to path
     expect(core.addPath).toHaveBeenCalled();
@@ -152,7 +153,8 @@ describe('Setup Terraform', () => {
       .get('/terraform/index.json')
       .reply(200, json);
 
-    await setup();
+    const versionObj = await setup();
+    expect(versionObj.version).toEqual('0.10.0');
 
     // downloaded CLI has been added to path
     expect(core.addPath).toHaveBeenCalled();
@@ -163,6 +165,259 @@ describe('Setup Terraform', () => {
     expect(creds.indexOf(credentialsToken)).toBeGreaterThan(-1);
   });
 
+  test('gets latest version matching specification adds token and hostname on linux, amd64', async () => {
+    const version = '<0.10.0';
+    const credentialsHostname = 'app.terraform.io';
+    const credentialsToken = 'asdfjkl';
+
+    core.getInput = jest
+      .fn()
+      .mockReturnValueOnce(version)
+      .mockReturnValueOnce(credentialsHostname)
+      .mockReturnValueOnce(credentialsToken);
+
+    tc.downloadTool = jest
+      .fn()
+      .mockReturnValueOnce('file.zip');
+
+    tc.extractZip = jest
+      .fn()
+      .mockReturnValueOnce('file');
+
+    os.platform = jest
+      .fn()
+      .mockReturnValue('linux');
+
+    os.arch = jest
+      .fn()
+      .mockReturnValue('amd64');
+
+    nock('https://releases.hashicorp.com')
+      .get('/terraform/index.json')
+      .reply(200, json);
+
+    const versionObj = await setup();
+    expect(versionObj.version).toEqual('0.1.1');
+
+    // downloaded CLI has been added to path
+    expect(core.addPath).toHaveBeenCalled();
+
+    // expect credentials are in ${HOME}.terraformrc
+    const creds = await fs.readFile(`${process.env.HOME}/.terraformrc`, { encoding: 'utf8' });
+    expect(creds.indexOf(credentialsHostname)).toBeGreaterThan(-1);
+    expect(creds.indexOf(credentialsToken)).toBeGreaterThan(-1);
+  });
+
+  test('gets latest version matching tilde range patch', async () => {
+    const version = '~0.1.0';
+    const credentialsHostname = 'app.terraform.io';
+    const credentialsToken = 'asdfjkl';
+
+    core.getInput = jest
+      .fn()
+      .mockReturnValueOnce(version)
+      .mockReturnValueOnce(credentialsHostname)
+      .mockReturnValueOnce(credentialsToken);
+
+    tc.downloadTool = jest
+      .fn()
+      .mockReturnValueOnce('file.zip');
+
+    tc.extractZip = jest
+      .fn()
+      .mockReturnValueOnce('file');
+
+    os.platform = jest
+      .fn()
+      .mockReturnValue('linux');
+
+    os.arch = jest
+      .fn()
+      .mockReturnValue('amd64');
+
+    nock('https://releases.hashicorp.com')
+      .get('/terraform/index.json')
+      .reply(200, json);
+
+    const versionObj = await setup();
+    expect(versionObj.version).toEqual('0.1.1');
+
+    // downloaded CLI has been added to path
+    expect(core.addPath).toHaveBeenCalled();
+    // expect credentials are in ${HOME}.terraformrc
+    const creds = await fs.readFile(`${process.env.HOME}/.terraformrc`, { encoding: 'utf8' });
+    expect(creds.indexOf(credentialsHostname)).toBeGreaterThan(-1);
+    expect(creds.indexOf(credentialsToken)).toBeGreaterThan(-1);
+  });
+
+  test('gets latest version matching tilde range minor', async () => {
+    const version = '~0.1';
+    const credentialsHostname = 'app.terraform.io';
+    const credentialsToken = 'asdfjkl';
+
+    core.getInput = jest
+      .fn()
+      .mockReturnValueOnce(version)
+      .mockReturnValueOnce(credentialsHostname)
+      .mockReturnValueOnce(credentialsToken);
+
+    tc.downloadTool = jest
+      .fn()
+      .mockReturnValueOnce('file.zip');
+
+    tc.extractZip = jest
+      .fn()
+      .mockReturnValueOnce('file');
+
+    os.platform = jest
+      .fn()
+      .mockReturnValue('linux');
+
+    os.arch = jest
+      .fn()
+      .mockReturnValue('amd64');
+
+    nock('https://releases.hashicorp.com')
+      .get('/terraform/index.json')
+      .reply(200, json);
+
+    const versionObj = await setup();
+    expect(versionObj.version).toEqual('0.1.1');
+
+    // downloaded CLI has been added to path
+    expect(core.addPath).toHaveBeenCalled();
+    // expect credentials are in ${HOME}.terraformrc
+    const creds = await fs.readFile(`${process.env.HOME}/.terraformrc`, { encoding: 'utf8' });
+    expect(creds.indexOf(credentialsHostname)).toBeGreaterThan(-1);
+    expect(creds.indexOf(credentialsToken)).toBeGreaterThan(-1);
+  });
+
+  test('gets latest version matching tilde range minor', async () => {
+    const version = '~0';
+    const credentialsHostname = 'app.terraform.io';
+    const credentialsToken = 'asdfjkl';
+
+    core.getInput = jest
+      .fn()
+      .mockReturnValueOnce(version)
+      .mockReturnValueOnce(credentialsHostname)
+      .mockReturnValueOnce(credentialsToken);
+
+    tc.downloadTool = jest
+      .fn()
+      .mockReturnValueOnce('file.zip');
+
+    tc.extractZip = jest
+      .fn()
+      .mockReturnValueOnce('file');
+
+    os.platform = jest
+      .fn()
+      .mockReturnValue('linux');
+
+    os.arch = jest
+      .fn()
+      .mockReturnValue('amd64');
+
+    nock('https://releases.hashicorp.com')
+      .get('/terraform/index.json')
+      .reply(200, json);
+
+    const versionObj = await setup();
+    expect(versionObj.version).toEqual('0.10.0');
+
+    // downloaded CLI has been added to path
+    expect(core.addPath).toHaveBeenCalled();
+    // expect credentials are in ${HOME}.terraformrc
+    const creds = await fs.readFile(`${process.env.HOME}/.terraformrc`, { encoding: 'utf8' });
+    expect(creds.indexOf(credentialsHostname)).toBeGreaterThan(-1);
+    expect(creds.indexOf(credentialsToken)).toBeGreaterThan(-1);
+  });
+
+  test('gets latest version matching .X range ', async () => {
+    const version = '0.1.x';
+    const credentialsHostname = 'app.terraform.io';
+    const credentialsToken = 'asdfjkl';
+
+    core.getInput = jest
+      .fn()
+      .mockReturnValueOnce(version)
+      .mockReturnValueOnce(credentialsHostname)
+      .mockReturnValueOnce(credentialsToken);
+
+    tc.downloadTool = jest
+      .fn()
+      .mockReturnValueOnce('file.zip');
+
+    tc.extractZip = jest
+      .fn()
+      .mockReturnValueOnce('file');
+
+    os.platform = jest
+      .fn()
+      .mockReturnValue('linux');
+
+    os.arch = jest
+      .fn()
+      .mockReturnValue('amd64');
+
+    nock('https://releases.hashicorp.com')
+      .get('/terraform/index.json')
+      .reply(200, json);
+
+    const versionObj = await setup();
+    expect(versionObj.version).toEqual('0.1.1');
+
+    // downloaded CLI has been added to path
+    expect(core.addPath).toHaveBeenCalled();
+    // expect credentials are in ${HOME}.terraformrc
+    const creds = await fs.readFile(`${process.env.HOME}/.terraformrc`, { encoding: 'utf8' });
+    expect(creds.indexOf(credentialsHostname)).toBeGreaterThan(-1);
+    expect(creds.indexOf(credentialsToken)).toBeGreaterThan(-1);
+  });
+
+  test('gets latest version matching - range ', async () => {
+    const version = '0.1.0 - 0.1.1';
+    const credentialsHostname = 'app.terraform.io';
+    const credentialsToken = 'asdfjkl';
+
+    core.getInput = jest
+      .fn()
+      .mockReturnValueOnce(version)
+      .mockReturnValueOnce(credentialsHostname)
+      .mockReturnValueOnce(credentialsToken);
+
+    tc.downloadTool = jest
+      .fn()
+      .mockReturnValueOnce('file.zip');
+
+    tc.extractZip = jest
+      .fn()
+      .mockReturnValueOnce('file');
+
+    os.platform = jest
+      .fn()
+      .mockReturnValue('linux');
+
+    os.arch = jest
+      .fn()
+      .mockReturnValue('amd64');
+
+    nock('https://releases.hashicorp.com')
+      .get('/terraform/index.json')
+      .reply(200, json);
+
+    const versionObj = await setup();
+    expect(versionObj.version).toEqual('0.1.1');
+
+    // downloaded CLI has been added to path
+    expect(core.addPath).toHaveBeenCalled();
+    // expect credentials are in ${HOME}.terraformrc
+    const creds = await fs.readFile(`${process.env.HOME}/.terraformrc`, { encoding: 'utf8' });
+    expect(creds.indexOf(credentialsHostname)).toBeGreaterThan(-1);
+    expect(creds.indexOf(credentialsToken)).toBeGreaterThan(-1);
+  });
+
   test('fails when metadata cannot be downloaded', async () => {
     const version = 'latest';
     const credentialsHostname = 'app.terraform.io';