Bug#771300: vcmibuilder should not be case sensitive

[Dave]

Package: vcmi
Version: 0.97+dfsg-2
Severity: important
Tags: upstream

vcmibuilder is case-sensistive, while you can’t expect some strict case scheme from HoMM3 data.
An example here where all data is available but vcmibuilder miss it due to case sensitivity:
dave at HAL9000:~$ ls /usr/local/share/games/heroes-of-might-and-magic-3/
binkw32.dll              goggame.sdb   h3camped.exe  h3update.txt            heroes3_tutorial.pdf  readmesd.txt
data                     h3blade.cnt   h3camped.hlp  heroes3_ab_manual.pdf   ifc21.dll             readme.txt
eula                     h3blade.exe   h3ccmped.cnt  heroes3.cnt             maps                  smackw32.dll
games                    h3blade.hlp   h3ccmped.exe  heroes3.exe             mcp.dll               webcache.zip
gameuxinstallhelper.dll  h3bmaped.cnt  h3ccmped.hlp  heroes3.hlp             mp3
goggame-1207658787.dll   h3bmaped.exe  h3maped.cnt   heroes3_manual.pdf      mp3dec.asi
goggame-1207658787.ico   h3bmaped.hlp  h3maped.exe   heroes3_refcard.pdf     mss32.dll
goggame-1207658787.info  h3camped.cnt  h3maped.hlp   heroes3_sod_manual.pdf  readmeab.txt
dave at HAL9000:~$ LANGUAGE=C vcmibuilder --data /usr/local/share/games/heroes-of-might-and-magic-3/
cp: cannot stat ‘/usr/local/share/games/heroes-of-might-and-magic-3//Data’: No such file or directory
cp: cannot stat ‘/usr/local/share/games/heroes-of-might-and-magic-3//Maps’: No such file or directory
cp: cannot stat ‘/usr/local/share/games/heroes-of-might-and-magic-3//Mp3’: No such file or directory

The problem can be seen with GOG installer version 2.1.0.20, that includes the directory "mp3" while vcmibuilder looks for "Mp3":
dave at HAL9000:~$ LANGUAGE=C vcmibuilder --gog setup_homm3_complete_french_2.1.0.20.exe 
cp: cannot stat ‘/home/dave/.local/share/vcmi/buildertmp/app/Mp3’: No such file or directory

Tagged as "important" as it breaks vcmibuilder with some version(s?) of GOG installer, fell free to set down the severity if you think it is not a "breaking bug".

-- System Information:
Debian Release: jessie/sid
  APT prefers stable-updates
  APT policy: (900, 'stable-updates'), (900, 'unstable'), (900, 'testing'), (900, 'stable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 3.16.0-4-amd64 (SMP w/4 CPU cores)
Locale: LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8) (ignored: LC_ALL set to fr_FR.UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages vcmi depends on:
ii  libavcodec56                    6:11-2
ii  libavformat56                   6:11-2
ii  libavutil54                     6:11-2
ii  libboost-filesystem1.55.0       1.55.0+dfsg-3
ii  libboost-locale1.55.0           1.55.0+dfsg-3
ii  libboost-program-options1.55.0  1.55.0+dfsg-3
ii  libboost-system1.55.0           1.55.0+dfsg-3
ii  libboost-thread1.55.0           1.55.0+dfsg-3
ii  libc6                           2.19-13
ii  libfuzzylite5.0                 5.0+dfsg-2
ii  libgcc1                         1:4.9.2-3
ii  libminizip1                     1.1-3
ii  libqt5core5a                    5.3.2+dfsg-4+b1
ii  libqt5gui5                      5.3.2+dfsg-4+b1
ii  libqt5network5                  5.3.2+dfsg-4+b1
ii  libqt5widgets5                  5.3.2+dfsg-4+b1
ii  libsdl2-2.0-0                   2.0.2+dfsg1-6
ii  libsdl2-image-2.0-0             2.0.0+dfsg-3+b4
ii  libsdl2-mixer-2.0-0             2.0.0+dfsg1-5
ii  libsdl2-ttf-2.0-0               2.0.12+dfsg1-2
ii  libstdc++6                      4.9.2-3
ii  libswscale3                     6:11-2
ii  zlib1g                          1:1.2.8.dfsg-2+b1

Versions of packages vcmi recommends:
ii  innoextract  1.4-1+b1
pn  libav-tools  <none>
ii  unshield     1.0-1
ii  unzip        6.0-12+b1

vcmi suggests no packages.

-- no debconf information