fix: print more debugging info (#297)

* fix: print found few specs

* print first five specs

* print the empty custom spec pattern

src/index.js

@@ -106,6 +106,16 @@ function cypressSplit(on, config) {
     const specs = getSpecsToSplit(process.env, config)
 
     console.log('%s there are %d found specs', label, specs.length)
+    if (specs.length < 5) {
+      specs.forEach((spec, k) => {
+        console.log('- %d: %s', k + 1, spec)
+      })
+    } else {
+      console.log('the first 5 specs')
+      specs.slice(0, 5).forEach((spec, k) => {
+        console.log('- %d: %s', k + 1, spec)
+      })
+    }
     // console.log(specs)
     const splitN = Number(SPLIT)
     const splitIndex = Number(SPLIT_INDEX)
@@ -334,6 +344,7 @@ function cypressSplit(on, config) {
         tempFilename,
       )
       config.specPattern = tempFilename
+      debug('set spec pattern to "%s"', config.specPattern)
     }
 
     return config