feat: add multi-document YAML support and update documentation

README.md

@@ -26,6 +26,7 @@ Options:
       --indent, --id  Indentation width (in spaces)  [number] [default: 2]
   -e, --encoding      Input encoding  [choices: "ascii", "utf8", "utf16le"] [default: "utf8"]
   -q, --quotingStyle  Strings will be quoted using this quoting style  [choices: "single", "double"] [default: "single"]
+  -f, --forceQuotes   Force quotes for all scalar values  [boolean] [default: false]
   -w, --lineWidth     Wrap line width (-1 for unlimited width)  [number] [default: 80]
   -h, --help          Show help  [boolean]
       --version       Show version number  [boolean]
@@ -34,5 +35,6 @@ Examples:
   yaml-sort --input config.yml                                 Sorts alphabetically and overwrites the file config.yml
   yaml-sort --input config.yml --lineWidth 100 --stdout        Sorts the file config.yml and output result to STDOUT wrapped to 100 columns
   yaml-sort --input config.yml --indent 4 --output sorted.yml  Indents with 4 spaces and outputs result to file sorted.yml
+  yaml-sort --input config.yml --forceQuotes --quotingStyle double  Forces double quotes for all scalar values
   cat config.yml | yaml-sort                                   Sorts alphabetically from STDIN
 ```

test/test-duplicate-keys.yml

@@ -0,0 +1,6 @@
+a: first value
+b: value
+a: second value  # Duplicate key
+c:
+  d: value1
+  d: value2      # Duplicate key 

test/test-multiple-sorted.yml

@@ -0,0 +1,9 @@
+---
+a: first document
+b: 1
+c:
+  d: true
+---
+x: second document
+'y':
+  z: false

test/test-multiple-unsorted.yml

@@ -0,0 +1,9 @@
+---
+c:
+  d: true
+b: 1
+a: first document
+---
+y:
+  z: false
+x: second document

test/test-multiple.yml

@@ -0,0 +1,9 @@
+---
+c:
+  d: true
+b: 1
+a: first document
+---
+y:
+  z: false
+x: second document

test/test.js

@@ -25,10 +25,10 @@ test('CLI w/o arg (STDIN)', (t) => {
   const proc = spawn(t, 'cat test.yml | ../yaml-sort.js', opts)
   proc.exitCode(0)
   proc.stdout.match('a: Lorem ipsum dolor sit amet, consectetur adipiscing elit...\n' +
-      'b:\n' +
-      '  b: 35\n' +
-      '  c:\n' +
-      '    d: false\n')
+    'b:\n' +
+    '  b: 35\n' +
+    '  c:\n' +
+    '    d: false\n')
   proc.stderr.match('')
   proc.end()
 })
@@ -37,10 +37,10 @@ test('CLI w/ arg', (t) => {
   const proc = spawn(t, '../yaml-sort.js --input test.yml --stdout', opts)
   proc.exitCode(0)
   proc.stdout.match('a: Lorem ipsum dolor sit amet, consectetur adipiscing elit...\n' +
-        'b:\n' +
-        '  b: 35\n' +
-        '  c:\n' +
-        '    d: false\n')
+    'b:\n' +
+    '  b: 35\n' +
+    '  c:\n' +
+    '    d: false\n')
   proc.stderr.match('')
   proc.end()
 })
@@ -49,13 +49,13 @@ test('CLI quoting style single', (t) => {
   const proc = spawn(t, '../yaml-sort.js --input test-edges.yml --stdout --quotingStyle single', opts)
   proc.exitCode(0)
   proc.stdout.match('a: Lorem ipsum dolor sit amet, consectetur adipiscing elit...\n' +
-      'b:\n' +
-      '  b: 35\n' +
-      '  c:\n' +
-      '    a: \'hello: "john"\'\n' +
-      '    d: false\n' +
-      '    e: \'"foo"\'\n' +
-      '    f: \'\'\'foo\'\'\'\n')
+    'b:\n' +
+    '  b: 35\n' +
+    '  c:\n' +
+    '    a: \'hello: "john"\'\n' +
+    '    d: false\n' +
+    '    e: \'"foo"\'\n' +
+    '    f: \'\'\'foo\'\'\'\n')
   proc.stderr.match('')
   proc.end()
 })
@@ -64,28 +64,28 @@ test('CLI quoting style double', (t) => {
   const proc = spawn(t, '../yaml-sort.js --input test-edges.yml --stdout --quotingStyle double', opts)
   proc.exitCode(0)
   proc.stdout.match('a: Lorem ipsum dolor sit amet, consectetur adipiscing elit...\n' +
-      'b:\n' +
-      '  b: 35\n' +
-      '  c:\n' +
-      '    a: "hello: \\"john\\""\n' +
-      '    d: false\n' +
-      '    e: "\\"foo\\""\n' +
-      '    f: "\'foo\'"\n')
+    'b:\n' +
+    '  b: 35\n' +
+    '  c:\n' +
+    '    a: "hello: \\"john\\""\n' +
+    '    d: false\n' +
+    '    e: "\\"foo\\""\n' +
+    '    f: "\'foo\'"\n')
   proc.stderr.match('')
   proc.end()
 })
 
 test('CLI --output', (t) => {
   const proc = spawn(t,
     '../yaml-sort.js --input test.yml --output output.yml' +
-        ' && cat output.yml' +
-        ' && rm -f output.yml', opts)
+    ' && cat output.yml' +
+    ' && rm -f output.yml', opts)
   proc.exitCode(0)
   proc.stdout.match('a: Lorem ipsum dolor sit amet, consectetur adipiscing elit...\n' +
-        'b:\n' +
-        '  b: 35\n' +
-        '  c:\n' +
-        '    d: false\n')
+    'b:\n' +
+    '  b: 35\n' +
+    '  c:\n' +
+    '    d: false\n')
   proc.stderr.match('')
   proc.end()
 })
@@ -94,24 +94,24 @@ test('CLI --output -', (t) => {
   const proc = spawn(t, '../yaml-sort.js --input test.yml --output -', opts)
   proc.exitCode(0)
   proc.stdout.match('a: Lorem ipsum dolor sit amet, consectetur adipiscing elit...\n' +
-      'b:\n' +
-      '  b: 35\n' +
-      '  c:\n' +
-      '    d: false\n')
+    'b:\n' +
+    '  b: 35\n' +
+    '  c:\n' +
+    '    d: false\n')
   proc.stderr.match('')
   proc.end()
 })
 test('CLI --output (STDIN)', (t) => {
   const proc = spawn(t,
     'cat test.yml | ../yaml-sort.js --input - --output output.yml' +
-      ' && cat output.yml' +
-      ' && rm -f output.yml', opts)
+    ' && cat output.yml' +
+    ' && rm -f output.yml', opts)
   proc.exitCode(0)
   proc.stdout.match('a: Lorem ipsum dolor sit amet, consectetur adipiscing elit...\n' +
-      'b:\n' +
-      '  b: 35\n' +
-      '  c:\n' +
-      '    d: false\n')
+    'b:\n' +
+    '  b: 35\n' +
+    '  c:\n' +
+    '    d: false\n')
   proc.stderr.match('')
   proc.end()
 })
@@ -120,10 +120,10 @@ test('CLI (STDIN) (STDOUT)', (t) => {
   const proc = spawn(t, 'cat test.yml | ../yaml-sort.js', opts)
   proc.exitCode(0)
   proc.stdout.match('a: Lorem ipsum dolor sit amet, consectetur adipiscing elit...\n' +
-      'b:\n' +
-      '  b: 35\n' +
-      '  c:\n' +
-      '    d: false\n')
+    'b:\n' +
+    '  b: 35\n' +
+    '  c:\n' +
+    '    d: false\n')
   proc.stderr.match('')
   proc.end()
 })
@@ -132,10 +132,10 @@ test('CLI --indent', (t) => {
   const proc = spawn(t, '../yaml-sort.js --input test.yml --stdout --indent 4', opts)
   proc.exitCode(0)
   proc.stdout.match('a: Lorem ipsum dolor sit amet, consectetur adipiscing elit...\n' +
-        'b:\n' +
-        '    b: 35\n' +
-        '    c:\n' +
-        '        d: false\n')
+    'b:\n' +
+    '    b: 35\n' +
+    '    c:\n' +
+    '        d: false\n')
   proc.stderr.match('')
   proc.end()
 })
@@ -144,12 +144,12 @@ test('CLI --lineWidth', (t) => {
   const proc = spawn(t, '../yaml-sort.js --input test.yml --stdout --lineWidth 40', opts)
   proc.exitCode(0)
   proc.stdout.match('a: >-\n' +
-        '  Lorem ipsum dolor sit amet, consectetur\n' +
-        '  adipiscing elit...\n' +
-        'b:\n' +
-        '  b: 35\n' +
-        '  c:\n' +
-        '    d: false\n')
+    '  Lorem ipsum dolor sit amet, consectetur\n' +
+    '  adipiscing elit...\n' +
+    'b:\n' +
+    '  b: 35\n' +
+    '  c:\n' +
+    '    d: false\n')
   proc.stderr.match('')
   proc.end()
 })
@@ -158,10 +158,10 @@ test('CLI --lineWidth unlimited', (t) => {
   const proc = spawn(t, '../yaml-sort.js --input test-long-line.yml --stdout --lineWidth -1', opts)
   proc.exitCode(0)
   proc.stdout.match('a: Lorem ipsum dolor sit amet, consectetur adipiscing elit. Etiam nec volutpat mi, ac consectetur est. Proin venenatis tortor ut erat interdum finibus.\n' +
-      'b:\n' +
-      '  b: 35\n' +
-      '  c:\n' +
-      '    d: false\n')
+    'b:\n' +
+    '  b: 35\n' +
+    '  c:\n' +
+    '    d: false\n')
   proc.stderr.match('')
   proc.end()
 })
@@ -184,6 +184,23 @@ test('CLI --check SUCCESS', (t) => {
   proc.end()
 })
 
+test('CLI --check invalid YAML (duplicate keys) FAIL', (t) => {
+  const proc = spawn(t, '../yaml-sort.js --input test-duplicate-keys.yml --check', opts)
+  proc.exitCode(1)
+  proc.stdout.match('')
+  proc.stderr.match(/duplicated mapping key/)
+
+  proc.end()
+})
+
+test('CLI --check valid YAML SUCCESS', (t) => {
+  const proc = spawn(t, '../yaml-sort.js --input sorted.yml --check', opts)
+  proc.exitCode(0)
+  proc.stdout.match('')
+  proc.stderr.match('')
+  proc.end()
+})
+
 test('CLI --encoding FAIL', (t) => {
   const proc = spawn(t,
     '../yaml-sort.js --input test-utf16le.yml --stdout', opts)
@@ -204,8 +221,8 @@ test('CLI --encoding SUCCESS', (t) => {
 test('CLI --lineWidth SUCCESS', (t) => {
   const proc = spawn(t,
     '../yaml-sort.js --input test.yml --output output.yml' +
-        ' && ../yaml-sort.js --input output.yml --check' +
-        ' && rm -f output.yml', opts)
+    ' && ../yaml-sort.js --input output.yml --check' +
+    ' && rm -f output.yml', opts)
   proc.exitCode(0)
   proc.stdout.match('')
   proc.stderr.match('')
@@ -229,3 +246,55 @@ test('CLI --check --stdout FAIL', (t) => {
   proc.stderr.match(/Arguments check and stdout are mutually exclusive/)
   proc.end()
 })
+
+test('CLI multiple YAML documents with single quotes', (t) => {
+  const proc = spawn(t, '../yaml-sort.js --input test-multiple.yml --stdout --quotingStyle single --forceQuotes', opts)
+  proc.exitCode(0)
+  proc.stdout.match(
+    '---\n' +
+    'a: \'first document\'\n' +
+    'b: 1\n' +
+    'c:\n' +
+    '  d: true\n' +
+    '---\n' +
+    'x: \'second document\'\n' +
+    '\'y\':\n' +
+    '  z: false\n'
+  )
+  proc.stderr.match('')
+  proc.end()
+})
+
+test('CLI multiple YAML documents with double quotes', (t) => {
+  const proc = spawn(t, '../yaml-sort.js --input test-multiple.yml --stdout --quotingStyle double --forceQuotes', opts)
+  proc.exitCode(0)
+  proc.stdout.match(
+    '---\n' +
+    'a: "first document"\n' +
+    'b: 1\n' +
+    'c:\n' +
+    '  d: true\n' +
+    '---\n' +
+    'x: "second document"\n' +
+    '"y":\n' +
+    '  z: false\n'
+  )
+  proc.stderr.match('')
+  proc.end()
+})
+
+test('CLI multiple YAML documents --check FAIL', (t) => {
+  const proc = spawn(t, '../yaml-sort.js --input test-multiple-unsorted.yml --check --quotingStyle single --forceQuotes', opts)
+  proc.exitCode(1)
+  proc.stdout.match('')
+  proc.stderr.match('\'test-multiple-unsorted.yml\' is not sorted and/or formatted (indent, line width).\n')
+  proc.end()
+})
+
+test('CLI multiple YAML documents --check SUCCESS', (t) => {
+  const proc = spawn(t, '../yaml-sort.js --input test-multiple-sorted.yml --check', opts)
+  proc.exitCode(0)
+  proc.stdout.match('')
+  proc.stderr.match('')
+  proc.end()
+})

yaml-sort.js

@@ -64,6 +64,11 @@ const argv = yargs
     describe: 'Strings will be quoted using this quoting style',
     choices: ['single', 'double']
   })
+  .option('forceQuotes', {
+    alias: 'f',
+    describe: 'Force quotes around all strings',
+    boolean: true
+  })
   .option('lineWidth', {
     alias: 'w',
     default: 80,
@@ -88,28 +93,35 @@ argv.input.forEach((file) => {
     }
 
     const output =
-        argv.stdout || (argv.output === '.') || (isStdin && !argv.output)
-          ? process.stdout.fd
-          : (argv.output ? argv.output : file)
+      argv.stdout || (argv.output === '.') || (isStdin && !argv.output)
+        ? process.stdout.fd
+        : (argv.output ? argv.output : file)
 
     const content = fs.readFileSync(isStdin ? process.stdin.fd : file, argv.encoding)
 
-    const sorted = yaml.dump(yaml.load(content), {
+    const documents = yaml.loadAll(content)
+
+    const sortedDocuments = documents.map(doc => yaml.dump(doc, {
       sortKeys: true,
       indent: argv.indent,
       lineWidth: argv.lineWidth,
-      quotingType: argv.quotingStyle === 'double' ? '"' : "'"
-    })
+      quotingType: argv.quotingStyle === 'double' ? '"' : "'",
+      forceQuotes: argv.forceQuotes
+    }))
+
+    const hasDocumentStart = content.toString().trimStart().startsWith('---')
+
+    const sortedContent = (hasDocumentStart ? '---\n' : '') + sortedDocuments.join('---\n')
 
     if (argv.check) {
-      if (sorted !== content.toString()) {
+      if (sortedContent !== content.toString()) {
         success = false
         console.warn(`'${file}' is not sorted and/or formatted (indent, line width).`)
       }
     } else {
       fs.writeFile(
         output,
-        sorted,
+        sortedContent,
         (error) => {
           if (error) {
             success = false