feat: base option

Author: turusuke

readme.md

@@ -26,6 +26,7 @@ $ posthtml --help
     --output -o    Output File or Folder
     --config -c    Path to config file
     --use -u       PostHTML plugin name
+    --base -b      Mirror the directory structure relative to this path in the output directory
     --help -h      CLI Help
     --version -v   CLI Version
 

src/cfg-resolve.js

@@ -4,7 +4,7 @@ import mergeOptions from 'merge-options';
 
 export default ({input, flags = {}}) => {
   const explorer = cosmiconfigSync('posthtml');
-  let {config, use, output} = flags;
+  let {config, use, output, base} = flags;
 
   if (config) {
     ({config} = explorer.load(config));
@@ -20,6 +20,7 @@ export default ({input, flags = {}}) => {
 
   return mergeOptions({
     input,
-    output
+    output,
+    base
   }, use || {}, config || {});
 };

src/cli.js

@@ -16,6 +16,7 @@ const cli = meow(`
     --output -o    Output File or Folder
     --config -c    Path to config file
     --use -u       PostHTML plugin name
+    --base -b      Mirror the directory structure relative to this path in the output directory
     --help -h      CLI Help
     --version -v   CLI Version
 
@@ -27,6 +28,7 @@ const cli = meow(`
     $ posthtml input.html -o output.html -u posthtml-bem --posthtml-bem.elemPrefix __
     $ posthtml inputFolder/*.html -o outputFolder
     $ posthtml inputFolder/**/*.html -o outputFolder
+    $ posthtml inputFolder/**/*.html -o outputFolder -b inputFolder
 `, {
   flags: {
     config: {
@@ -48,6 +50,10 @@ const cli = meow(`
     use: {
       type: 'array',
       alias: 'u'
+    },
+    base: {
+      type: 'string',
+      alias: 'b'
     }
   }
 });
@@ -68,7 +74,7 @@ const getPlugins = config => Object.keys(config.plugins || {})
 const config = cfgResolve(cli);
 
 const processing = async file => {
-  const output = await outResolve(file, config.output);
+  const output = await outResolve(file, config.output, config.base);
   const plugins = Array.isArray(config.plugins) ? config.plugins : getPlugins(config);
 
   makeDir(path.dirname(output))

src/out-resolve.js

@@ -1,12 +1,13 @@
 import path from 'path';
 
-export default (input, output) => new Promise(resolve => {
+export default (input, output, base) => new Promise(resolve => {
   if (output && path.extname(output)) {
     return resolve(output);
   }
 
   if (output) {
-    return resolve(path.join(output, path.basename(input)));
+    const basePath = base ? path.resolve(input).replace(path.resolve(base), '') : path.basename(input);
+    return resolve(path.join(output, basePath));
   }
 
   resolve(input);