Use realpath instead of readlink

Summary:
Changelog: [Internal]

Generated with:

```
python3 codemod.py -d xplat/js --extensions=sh 'THIS_DIR=\$\(cd -P "\$\(dirname "\$\(readlink "\${BASH_SOURCE\[0\]}"' 'THIS_DIR=$(cd -P "$(dirname "$(realpath "${BASH_SOURCE[0]}"'```

Reviewed By: motiz88

Differential Revision: D34379955

fbshipit-source-id: c60521cd6508b203f48ca8c890c450319991c2d4

Author: IanChilds

packages/react-native-codegen/scripts/oss/build.sh

@@ -6,7 +6,7 @@
 
 # This script assumes yarn is already installed.
 
-THIS_DIR=$(cd -P "$(dirname "$(readlink "${BASH_SOURCE[0]}" || echo "${BASH_SOURCE[0]}")")" && pwd)
+THIS_DIR=$(cd -P "$(dirname "$(realpath "${BASH_SOURCE[0]}" || echo "${BASH_SOURCE[0]}")")" && pwd)
 
 set -e
 set -u

packages/react-native-codegen/src/cli/combine/combine_js_to_schema.sh

@@ -7,7 +7,7 @@
 set -e
 set -u
 
-THIS_DIR=$(cd -P "$(dirname "$(readlink "${BASH_SOURCE[0]}" || echo "${BASH_SOURCE[0]}")")" && pwd)
+THIS_DIR=$(cd -P "$(dirname "$(realpath "${BASH_SOURCE[0]}" || echo "${BASH_SOURCE[0]}")")" && pwd)
 
 # shellcheck source=xplat/js/env-utils/setup_env_vars.sh
 source "$THIS_DIR/../../../../../../env-utils/setup_env_vars.sh"

packages/react-native-codegen/src/cli/generators/generate-all.sh

@@ -7,7 +7,7 @@
 set -e
 set -u
 
-THIS_DIR=$(cd -P "$(dirname "$(readlink "${BASH_SOURCE[0]}" || echo "${BASH_SOURCE[0]}")")" && pwd)
+THIS_DIR=$(cd -P "$(dirname "$(realpath "${BASH_SOURCE[0]}" || echo "${BASH_SOURCE[0]}")")" && pwd)
 
 # shellcheck source=xplat/js/env-utils/setup_env_vars.sh
 source "$THIS_DIR/../../../../../../env-utils/setup_env_vars.sh"

packages/react-native-codegen/src/cli/parser/parser.sh

@@ -7,7 +7,7 @@
 set -e
 set -u
 
-THIS_DIR=$(cd -P "$(dirname "$(readlink "${BASH_SOURCE[0]}" || echo "${BASH_SOURCE[0]}")")" && pwd)
+THIS_DIR=$(cd -P "$(dirname "$(realpath "${BASH_SOURCE[0]}" || echo "${BASH_SOURCE[0]}")")" && pwd)
 
 # shellcheck source=xplat/js/env-utils/setup_env_vars.sh
 source "$THIS_DIR/../../../../../../env-utils/setup_env_vars.sh"

runXcodeTests.sh

@@ -6,7 +6,7 @@
 
 # This script should be run from the react-native root
 
-THIS_DIR=$(cd -P "$(dirname "$(readlink "${BASH_SOURCE[0]}" || echo "${BASH_SOURCE[0]}")")" && pwd)
+THIS_DIR=$(cd -P "$(dirname "$(realpath "${BASH_SOURCE[0]}" || echo "${BASH_SOURCE[0]}")")" && pwd)
 source "scripts/.tests.env"
 
 if [ -n "$1" ]

scripts/objc-test.sh

@@ -78,7 +78,7 @@ xcprettyFormat() {
     # Circle CI expects JUnit reports to be available here
     REPORTS_DIR="$HOME/react-native/reports/junit"
   else
-    THIS_DIR=$(cd -P "$(dirname "$(readlink "${BASH_SOURCE[0]}" || echo "${BASH_SOURCE[0]}")")" && pwd)
+    THIS_DIR=$(cd -P "$(dirname "$(realpath "${BASH_SOURCE[0]}" || echo "${BASH_SOURCE[0]}")")" && pwd)
 
     # Write reports to the react-native root dir
     REPORTS_DIR="$THIS_DIR/../build/reports"

scripts/packager.sh

@@ -5,7 +5,7 @@
 # LICENSE file in the root directory of this source tree.
 
 # scripts directory
-THIS_DIR=$(cd -P "$(dirname "$(readlink "${BASH_SOURCE[0]}" || echo "${BASH_SOURCE[0]}")")" && pwd)
+THIS_DIR=$(cd -P "$(dirname "$(realpath "${BASH_SOURCE[0]}" || echo "${BASH_SOURCE[0]}")")" && pwd)
 REACT_NATIVE_ROOT="$THIS_DIR/.."
 # Application root directory - General use case: react-native is a dependency
 PROJECT_ROOT="$THIS_DIR/../../.."

scripts/run-android-emulator.sh

@@ -10,7 +10,7 @@
 # virtual device configuration.
 # This is useful for running integration tests on a local machine.
 
-THIS_DIR=$(cd -P "$(dirname "$(readlink "${BASH_SOURCE[0]}" || echo "${BASH_SOURCE[0]}")")" && pwd)
+THIS_DIR=$(cd -P "$(dirname "$(realpath "${BASH_SOURCE[0]}" || echo "${BASH_SOURCE[0]}")")" && pwd)
 
 STATE=`adb get-state`
 

scripts/update_podfile_lock.sh

@@ -8,7 +8,7 @@
 # Usage:
 #   source scripts/update_podfile_lock && update_pods
 
-THIS_DIR=$(cd -P "$(dirname "$(readlink "${BASH_SOURCE[0]}" || echo "${BASH_SOURCE[0]}")")" && pwd)
+THIS_DIR=$(cd -P "$(dirname "$(realpath "${BASH_SOURCE[0]}" || echo "${BASH_SOURCE[0]}")")" && pwd)
 RNTESTER_DIR="$THIS_DIR/../packages/rn-tester"
 
 # Keep this separate for FB internal access.