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Drop in replacement/wrapper for xcodebuild, fixes Xcode 7 build dependency on system ruby vs. rvm. Explained further @ http://stackoverflow.com/questions/33041109.
#!/bin/bash --login
# Cf. http://stackoverflow.com/questions/33041109
#
# Xcode 7 (incl. 7.0.1) seems to have a dependency on the system ruby.
# xcodebuild is screwed up by using rvm to map to another non-system
# ruby†. This script is a fix that allows you call xcodebuild in a
# "safe" rvm environment, but will not (AFAIK) affect the "external"
# rvm setting.
#
# The script is a drop in replacement for your xcodebuild call.
#
# xcodebuild arg1 ... argn
#
# would become
#
# path/to/xcbuild-safe.sh arg1 ... argn
#
# -----
# † Because, you know, that *never* happens when you are building
# Xcode projects, say with abstruse tools like Rake or CocoaPods.
# This allows you to use rvm in a script. Otherwise you get a BS
# error along the lines of "cannot use rvm as function". Jeez.
[[ -s "$HOME/.rvm/scripts/rvm" ]] && source "$HOME/.rvm/scripts/rvm"
# Cause rvm to use system ruby. AFAIK, this is effective only for
# the scope of this script.
rvm use system
unset RUBYLIB
unset RUBYOPT
unset BUNDLE_BIN_PATH
unset _ORIGINAL_GEM_PATH
unset BUNDLE_GEMFILE
set -x # echoes commands
xcodebuild "$@" # calls xcodebuild with all the arguments passed to this
@lacostej
lacostej commented Jan 6, 2016

This wasn't sufficient for us. I had to unset more variables

unset RUBYLIB
unset RUBYOPT
unset BUNDLE_BIN_PATH
unset _ORIGINAL_GEM_PATH
unset BUNDLE_GEMFILE

before calling xcodebuild.

@claybridges
Owner

Updated, thanks.

@claybridges
Owner

Answering a question from elsewhere, I release this into the public domain with no copyright attachments whatsoever.

@xeieshan

I ran it but it failed with following errors, kindly help me

The following build commands failed:
CompileSwift normal arm64
CompileSwiftSources normal arm64 com.apple.xcode.tools.swift.compiler
CompileSwift normal armv7
CompileSwiftSources normal armv7 com.apple.xcode.tools.swift.compiler
Ditto build/<#AppName#>/Release-iphoneos/<#AppName#>/DerivedSources/<#AppName#>-Swift.h build/<#AppName#>/Release-iphoneos/<#AppName#>/Objects-normal/arm64/<#AppName#>-Swift.h
Ditto build/<#AppName#>/Release-iphoneos/<#AppName#>/DerivedSources/<#AppName#>-Swift.h build/<#AppName#>/Release-iphoneos/<#AppName#>/Objects-normal/armv7/<#AppName#>-Swift.h
CompileC build/<#AppName#>/Release-iphoneos/<#AppName#>/Objects-normal/armv7/UILabel+Helper.o <#AppName#>/Classes/Category/UILabel/UILabel+Helper.m normal armv7 objective-c com.apple.compilers.llvm.clang.1_0.compiler
CompileC build/<#AppName#>/Release-iphoneos/<#AppName#>/Objects-normal/armv7/UtilityFunctions.o <#AppName#>/Classes/UtilityFunctions/UtilityFunctions.m normal armv7 objective-c com.apple.compilers.llvm.clang.1_0.compiler
CompileC build/<#AppName#>/Release-iphoneos/<#AppName#>/Objects-normal/arm64/UILabel+Helper.o <#AppName#>/Classes/Category/UILabel/UILabel+Helper.m normal arm64 objective-c com.apple.compilers.llvm.clang.1_0.compiler
CompileC build/<#AppName#>/Release-iphoneos/<#AppName#>/Objects-normal/arm64/UtilityFunctions.o <#AppName#>/Classes/UtilityFunctions/UtilityFunctions.m normal arm64 objective-c com.apple.compilers.llvm.clang.1_0.compiler
Ditto build/Release-iphoneos/<#AppName#>.swiftmodule/arm.swiftmodule build/<#AppName#>/Release-iphoneos/<#AppName#>/Objects-normal/armv7/<#AppName#>.swiftmodule
Ditto build/Release-iphoneos/<#AppName#>.swiftmodule/arm.swiftdoc build/<#AppName#>/Release-iphoneos/<#AppName#>/Objects-normal/armv7/<#AppName#>.swiftdoc
Ditto build/Release-iphoneos/<#AppName#>.swiftmodule/arm64.swiftmodule build/<#AppName#>/Release-iphoneos/<#AppName#>/Objects-normal/arm64/<#AppName#>.swiftmodule
Ditto build/Release-iphoneos/<#AppName#>.swiftmodule/arm64.swiftdoc build/<#AppName#>/Release-iphoneos/<#AppName#>/Objects-normal/arm64/<#AppName#>.swiftdoc
Ld build/<#AppName#>.build/Release-iphoneos/<#AppName#>/Objects-normal/arm64/<#AppName#> normal arm64
Ld build/<#AppName#>/Release-iphoneos/<#AppName#>/Objects-normal/armv7/<#AppName#> normal armv7
CreateUniversalBinary build/Release-iphoneos/<#AppName#>.app/<#AppName#> normal armv7\ arm64
GenerateDSYMFile build/Release-iphoneos/<#AppName#>.app.dSYM build/Release-iphoneos/<#AppName#>.app/<#AppName#>
PhaseScriptExecution [CP]\ Embed\ Pods\ Frameworks build/<#AppName#>/Release-iphoneos/<#AppName#>/Script-BCDEC6F471C9E9C710CD7329.sh
(19 failures)

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