Hi Nick,

Weirdly I did know that it was you, but you know, when you read something, 
sometimes you end up typing / saying whatever you're reading when doing both at 
the same time. Haha :D.

I'm really sorry I wrote the wrong name. Let me thank you again for your work 
:-)

-- 
Thibault Martin-Lagardette



On Aug 23, 2010, at 14:22, Nick Ludlam wrote:

> Hi Thibault, it's actually me who wrote the tutorial, and Emil who gave me 
> really solid feedback on some required steps I managed to miss out first time 
> round.
> 
> I've done what you've recommended and changed the example irb session to use 
> simple-prompt mode.  It's now pushed to 
> http://github.com/nickludlam/macruby_website/tree/bundle-tutorial and 
> awaiting a merge from Matt.
> 
> Nick
> 
> On 23 Aug 2010, at 18:58, Thibault Martin-Lagardette wrote:
> 
>> Hi Emil!
>> 
>> That's very awesome work, thanks for the dedication of making a tutorial!
>> 
>> I would simply want to add, maybe you should launch macirb with 
>> --simple-prompt, it makes the output a little nicer and clearer I think (at 
>> least for that kind of examples where line numbers are not really needed).
>> 
>> Thank you again!
>> -- 
>> Thibault Martin-Lagardette
>> 
>> 
>> 
>> On Aug 22, 2010, at 12:46, Nick Ludlam wrote:
>> 
>>> 
>>> Fantastic feedback, thanks again. I've included comments inline below, and 
>>> I've updated the preview at 
>>> http://recoil.org/~nick/macruby/documentation/realworld-dynamic-bundles.h
>>> 
>>> On 20 Aug 2010, at 14:51, Emil Tin wrote:
>>> 
>>>> progress!
>>>> I downloaded your project, and it builds without problems. Comparing them 
>>>> I found out that:
>>>> 
>>>> 1. my project was missing the 'Copy Headers' build phase.
>>> 
>>> You're right, I've added this into the text.
>>> 
>>> 
>>>> 2. after adding a 'copy headers' phase, and using the get info.. then 
>>>> checkbox method to add headers files from the taglib target to the 
>>>> taglibbundle target, it still couldn't build because my project had 
>>>> list.tcc and tmap.tcc in the 'compile sources' build phase. for some 
>>>> reason, it seems that when i use 'get info' method, files with the .tcc 
>>>> extension are added to the 'compile source' phase isntead of the 'copy 
>>>> headers' phase.
>>> 
>>> Yeah it seems XCode gets confused with that suffix. I've simplified the 
>>> method of cloning the header and source settings by getting the reader to 
>>> drag and drop the files from the existing folders directly into the new.
>>> 
>>> 
>>>> after moving the two .tcc files to the 'copy headers phase', my project 
>>>> builds. moving on i found.
>>>> 
>>>> 
>>>> 3.  TagLib.h needs #import <Cocoa/Cocoa.h>
>>> 
>>> Linking to <Foundation/Foundation.h> should be all thats needed, but the 
>>> template uses Cocoa, so I'll add a step to edit this from Cocoa to 
>>> Foundation.
>>> 
>>> 
>>>> 4. TagLib.m needs #import "tag_c.h"
>>> 
>>> Correct, and fixed!
>>> 
>>> 
>>>> 5. the copy script at the end failed. the reason was i copied it from the 
>>>> webpage, which had a line break. you might add a "\" to the code at the 
>>>> webapge:
>>>> 
>>>> cp -v "${TARGET_BUILD_DIR}/${EXECUTABLE_PATH}" \
>>>> "${SOURCE_ROOT}/${FULL_PRODUCT_NAME}"
>>> 
>>> I've now added the backslash to help with the line wrapping.
>>> 
>>> 
>>>> 6. i need to require the full path to the bundle (or modify load paths). 
>>>> simply using require 'TagLibBundle' fails even if i'm inside the folder 
>>>> the bundle is?
>>> 
>>> I think this is because I missed a step where you give the project the 
>>> '.bundle' suffix, so you end up with a 'TagLibBundle.bundle' filename. I've 
>>> added it to the tutorial text. 
>>> 
>>> 
>>>> 7. it works! i can use test.tags[:title] and get the title af an mp3.
>>>> 
>>>> 8. if i call test.tags i get a segmentation fault:
>>>> 
>>>> ~/Desktop/MacRuby/TagLib.framework$ macirb
>>>> Couldn't load Wirble: no such file to load -- wirble
>>>> irb(main):001:0> require 
>>>> '/Users/emiltin/Desktop/MacRuby/TagLib.framework/TagLibBundle.bundle'
>>>> => true
>>>> irb(main):002:0> test = 
>>>> TagLib.alloc.initWithFileAtPath("/Users/emiltin/Music/Elysium\ 
>>>> etc/Celestial_Sounds_and_Tribal_Beats_mp3/05.Wisdom.mp3")
>>>> => #<TagLib:0x200031f40>
>>>> irb(main):003:0> test.tags[:title]=> "Wisdom"
>>>> irb(main):004:0> test.tagsSegmentation fault
>>> 
>>> Ok this is a weird one, and I think related to reference counting and 
>>> release pools. I've now altered the way the wrapper works, and it now uses 
>>> discreet ivars and getters instead of a dictionary, which is a little more 
>>> verbose, but nicer from the Ruby side of things.
>>> 
>>> 
>>>> 
>>>> On 20/08/2010, at 14.42, Nick Ludlam wrote:
>>>> 
>>>>> Thanks very much Emil. I'll go through the points:
>>>>> 
>>>>> 1. Good catch. I'll replace this with 'curl' since it's part of the base 
>>>>> system. 
>>>>> 
>>>>> 2. I'll describe this step in a little more detail, perhaps with a 
>>>>> screenshot. There is a reasonable familiarity with XCode that's assumed, 
>>>>> though.
>>>>> 
>>>>> 3. I suspect this is related to build setting change that I may have 
>>>>> missed out. If you have time, could you grab the project from 
>>>>> http://github.com/nickludlam/TagLib.framework and try compiling ?
>>>>> 
>>>>> 
>>>>> Nick
>>>>> 
>>>>> 
>>>>> On 20 Aug 2010, at 12:42, Emil Tin wrote:
>>>>> 
>>>>>> 
>>>>>> nice tutorials!
>>>>>> 
>>>>>> i tried following the tutorial but ran into a few problems:
>>>>>> 
>>>>>> 1.
>>>>>> wget command was not found. wget is not installed by default in os x, it 
>>>>>> seems.
>>>>>> 
>>>>>> 2.
>>>>>> linking agains foundation and libz: as an xcode beginner, i had to guess 
>>>>>> a bit to figure out how to do this. i suppose you mean adding items in 
>>>>>> the 'linked libraries' area of the taglibbundle target info pane. maybe 
>>>>>> describe in a sentence the simple steps involved.
>>>>>> 
>>>>>> 3.
>>>>>> can't compile. when i try to build the project, i get a lot of errors. 
>>>>>> here's the first:
>>>>>> 
>>>>>> 
>>>>>> CompileC 
>>>>>> /Users/emiltin/Desktop/builds/TagLib.build/Debug/TagLibBundle.build/Objects-normal/x86_64/tlist.o
>>>>>>  taglib-src/taglib/toolkit/tlist.tcc normal x86_64 c++ 
>>>>>> com.apple.compilers.gcc.4_2
>>>>>> cd /Users/emiltin/Desktop/MacRuby/TagLib.framework
>>>>>> setenv LANG en_US.US-ASCII
>>>>>> /Developer/usr/bin/gcc-4.2 -x c++ -arch x86_64 -fmessage-length=0 -pipe 
>>>>>> -Wno-trigraphs -fpascal-strings -fasm-blocks -O0 -Wreturn-type 
>>>>>> -Wunused-variable -DHAVE_CONFIG_H -isysroot 
>>>>>> /Developer/SDKs/MacOSX10.6.sdk -mfix-and-continue 
>>>>>> -fvisibility-inlines-hidden -mmacosx-version-min=10.6 -gdwarf-2 -iquote 
>>>>>> /Users/emiltin/Desktop/builds/TagLib.build/Debug/TagLibBundle.build/TagLibBundle-generated-files.hmap
>>>>>>  
>>>>>> -I/Users/emiltin/Desktop/builds/TagLib.build/Debug/TagLibBundle.build/TagLibBundle-own-target-headers.hmap
>>>>>>  
>>>>>> -I/Users/emiltin/Desktop/builds/TagLib.build/Debug/TagLibBundle.build/TagLibBundle-all-target-headers.hmap
>>>>>>  -iquote 
>>>>>> /Users/emiltin/Desktop/builds/TagLib.build/Debug/TagLibBundle.build/TagLibBundle-project-headers.hmap
>>>>>>  -F/Users/emiltin/Desktop/builds/Debug 
>>>>>> -I/Users/emiltin/Desktop/builds/Debug/include 
>>>>>> -I/Users/emiltin/Desktop/builds/TagLib.build/Debug/TagLibBundle.build/DerivedSources/x86_64
>>>>>>  
>>>>>> -I/Users/emiltin/Desktop/builds/TagLib.build/Debug/TagLibBundle.build/DerivedSou
 r
> c
>> e
>>> s 
>>>>> -c 
>>>>> /Users/emiltin/Desktop/MacRuby/TagLib.framework/taglib-src/taglib/toolkit/tlist.tcc
>>>>>  -o 
>>>>> /Users/emiltin/Desktop/builds/TagLib.build/Debug/TagLibBundle.build/Objects-normal/x86_64/tlist.o
>>>>>> 
>>>>>> /Users/emiltin/Desktop/MacRuby/TagLib.framework/taglib-src/taglib/toolkit/tlist.tcc:42:
>>>>>>  error: expected class-name before '{' token
>>>>>> /Users/emiltin/Desktop/MacRuby/TagLib.framework/taglib-src/taglib/toolkit/tlist.tcc:51:
>>>>>>  error: 'List' is not a template
>>>>>> /Users/emiltin/Desktop/MacRuby/TagLib.framework/taglib-src/taglib/toolkit/tlist.tcc:51:
>>>>>>  error: 'List' has not been declared
>>>>>> /Users/emiltin/Desktop/MacRuby/TagLib.framework/taglib-src/taglib/toolkit/tlist.tcc:51:
>>>>>>  error: expected unqualified-id before ':' token
>>>>>> /Users/emiltin/Desktop/MacRuby/TagLib.framework/taglib-src/taglib/toolkit/tlist.tcc:66:
>>>>>>  error: 'List' is not a template
>>>>>> /Users/emiltin/Desktop/MacRuby/TagLib.framework/taglib-src/taglib/toolkit/tlist.tcc:66:
>>>>>>  error: 'List' has not been declared
>>>>>> /Users/emiltin/Desktop/MacRuby/TagLib.framework/taglib-src/taglib/toolkit/tlist.tcc:66:
>>>>>>  error: expected unqualified-id before '<' token
>>>>>> /Users/emiltin/Desktop/MacRuby/TagLib.framework/taglib-src/taglib/toolkit/tlist.tcc:90:
>>>>>>  error: expected constructor, destructor, or type conversion before '<' 
>>>>>> token
>>>>>> /Users/emiltin/Desktop/MacRuby/TagLib.framework/taglib-src/taglib/toolkit/tlist.tcc:96:
>>>>>>  error: expected constructor, destructor, or type conversion before '<' 
>>>>>> token
>>>>>> /Users/emiltin/Desktop/MacRuby/TagLib.framework/taglib-src/taglib/toolkit/tlist.tcc:102:
>>>>>>  error: expected constructor, destructor, or type conversion before '<' 
>>>>>> token
>>>>>> /Users/emiltin/Desktop/MacRuby/TagLib.framework/taglib-src/taglib/toolkit/tlist.tcc:109:
>>>>>>  error: expected nested-name-specifier before 'List'
>>>>>> /Users/emiltin/Desktop/MacRuby/TagLib.framework/taglib-src/taglib/toolkit/tlist.tcc:109:
>>>>>>  error: expected initializer before '<' token
>>>>>> /Users/emiltin/Desktop/MacRuby/TagLib.framework/taglib-src/taglib/toolkit/tlist.tcc:116:
>>>>>>  error: expected nested-name-specifier before 'List'
>>>>>> /Users/emiltin/Desktop/MacRuby/TagLib.framework/taglib-src/taglib/toolkit/tlist.tcc:116:
>>>>>>  error: expected initializer before '<' token
>>>>>> /Users/emiltin/Desktop/MacRuby/TagLib.framework/taglib-src/taglib/toolkit/tlist.tcc:122:
>>>>>>  error: expected nested-name-specifier before 'List'
>>>>>> /Users/emiltin/Desktop/MacRuby/TagLib.framework/taglib-src/taglib/toolkit/tlist.tcc:122:
>>>>>>  error: expected initializer before '<' token
>>>>>> /Users/emiltin/Desktop/MacRuby/TagLib.framework/taglib-src/taglib/toolkit/tlist.tcc:129:
>>>>>>  error: expected nested-name-specifier before 'List'
>>>>>> /Users/emiltin/Desktop/MacRuby/TagLib.framework/taglib-src/taglib/toolkit/tlist.tcc:129:
>>>>>>  error: expected initializer before '<' token
>>>>>> /Users/emiltin/Desktop/MacRuby/TagLib.framework/taglib-src/taglib/toolkit/tlist.tcc:135:
>>>>>>  error: expected nested-name-specifier before 'List'
>>>>>> /Users/emiltin/Desktop/MacRuby/TagLib.framework/taglib-src/taglib/toolkit/tlist.tcc:135:
>>>>>>  error: expected initializer before '<' token
>>>>>> .....
>>>>>> 
>>>>>> 
>>>>>> i'm using taglib 1.6.3, os x 10.6.4 and xcode 3.2.3
>>>>>> 
>>>>>> I'm not very experienced with xcode, and not sure what to do next. i 
>>>>>> followed the steps you described wtih setting up xcode build settings, 
>>>>>> etc. it seems the header files is somehow not included correctly?
>>>>>> 
>>>>>> thanks,
>>>>>> emil
>>>>>> 
>>>>>> 
>>>>>> On 19/08/2010, at 19.12, Nick Ludlam wrote:
>>>>>> 
>>>>>>> I've written up a first draft of a tutorial on taking C/C++, wrapping 
>>>>>>> the code in a simple Obj-C class, then exporting this as a bundle which 
>>>>>>> can be loaded by MacRuby. In this case, it's about wrapping the 
>>>>>>> open-source TagLib library in order to extract ID3 tags from mp3 files.
>>>>>>> 
>>>>>>> If people have the time, I'd really appreciate any feedback on things 
>>>>>>> like length, clarity, and accuracy of describing steps in XCode etc 
>>>>>>> etc. 
>>>>>>> 
>>>>>>> http://recoil.org/~nick/macruby/documentation/realworld-dynamic-bundles.html
>>>>>>> 
>>>>>>> 
>>>>>>> Thanks,
>>>>>>> Nick
>>>>>>> 
>>>>>>> _______________________________________________
>>>>>>> MacRuby-devel mailing list
>>>>>>> MacRuby-devel@lists.macosforge.org
>>>>>>> http://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel
>>>>>> 
>>>>>> _______________________________________________
>>>>>> MacRuby-devel mailing list
>>>>>> MacRuby-devel@lists.macosforge.org
>>>>>> http://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel
>>>>> 
>>>>> _______________________________________________
>>>>> MacRuby-devel mailing list
>>>>> MacRuby-devel@lists.macosforge.org
>>>>> http://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel
>>>> 
>>>> _______________________________________________
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>>>> http://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel
>>> 
>>> _______________________________________________
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>>> http://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel
>> 
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> 
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