Add an alternate install location for binary resources. Fixes devices where /data/local/tmp is mounted as noexec, like ZUK Z1. Closes #436.

lib/units/device/resources/minicap.js

@@ -1,3 +1,4 @@
+var fs = require('fs')
 var util = require('util')
 var path = require('path')
 
@@ -8,16 +9,17 @@ var logger = require('../../../util/logger')
 var pathutil = require('../../../util/pathutil')
 var devutil = require('../../../util/devutil')
 var streamutil = require('../../../util/streamutil')
+var Resource = require('./util/resource')
 
 module.exports = syrup.serial()
   .dependency(require('../support/adb'))
   .dependency(require('../support/properties'))
   .dependency(require('../support/abi'))
   .define(function(options, adb, properties, abi) {
-    logger.createLogger('device:resources:minicap')
+    var log = logger.createLogger('device:resources:minicap')
 
     var resources = {
-      bin: {
+      bin: new Resource({
         src: pathutil.requiredMatch(abi.all.map(function(supportedAbi) {
           return pathutil.module(util.format(
             'minicap-prebuilt/prebuilt/%s/bin/minicap%s'
@@ -25,11 +27,14 @@ module.exports = syrup.serial()
           , abi.pie ? '' : '-nopie'
           ))
         }))
-      , dest: '/data/local/tmp/minicap'
+      , dest: [
+          '/data/local/tmp/minicap'
+        , '/data/data/com.android.shell/minicap'
+        ]
       , comm: 'minicap'
       , mode: 0755
-      }
-    , lib: {
+      })
+    , lib: new Resource({
         // @todo The lib ABI should match the bin ABI. Currently we don't
         // have an x86_64 version of the binary while the lib supports it.
         src: pathutil.requiredMatch(abi.all.reduce(function(all, supportedAbi) {
@@ -46,9 +51,13 @@ module.exports = syrup.serial()
             ))
           ])
         }, []))
-      , dest: '/data/local/tmp/minicap.so'
+      , dest: [
+          '/data/local/tmp/minicap.so'
+        , '/data/data/com.android.shell/minicap.so'
+        ]
+      , comm: 'minicap.so' // Not actually used for anything but log output
       , mode: 0755
-      }
+      })
     }
 
     function removeResource(res) {
@@ -60,7 +69,7 @@ module.exports = syrup.serial()
         .return(res)
     }
 
-    function installResource(res) {
+    function pushResource(res) {
       return adb.push(options.serial, res.src, res.dest, res.mode)
         .timeout(10000)
         .then(function(transfer) {
@@ -72,10 +81,39 @@ module.exports = syrup.serial()
         .return(res)
     }
 
+    function installResource(res) {
+      log.info('Installing "%s" as "%s"', res.comm, res.dest)
+
+      function checkExecutable(res) {
+        return adb.stat(options.serial, res.dest)
+          .timeout(5000)
+          .then(function(stats) {
+            return (stats.mode & fs.constants.S_IXUSR) === fs.constants.S_IXUSR
+          })
+      }
+
+      return removeResource(res)
+        .then(pushResource)
+        .then(function(res) {
+          return checkExecutable(res).then(function(ok) {
+            if (!ok) {
+              log.info(
+                'Pushed "%s" not executable, attempting fallback location'
+              , res.comm
+              )
+              res.shift()
+              return installResource(res)
+            }
+            return res
+          })
+        })
+        .return(res)
+    }
+
     function installAll() {
       return Promise.all([
-        removeResource(resources.bin).then(installResource)
-      , removeResource(resources.lib).then(installResource)
+        installResource(resources.bin)
+      , installResource(resources.lib)
       ])
     }