[cmake-developers] [CMake 0015996]: Unable to zip files with CMake command-line tool `tar` without path prefix in zip file

[Mantis Bug Tracker]

The following issue has been SUBMITTED. 
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https://cmake.org/Bug/view.php?id=15996 
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Reported By:                Marcel Metz
Assigned To:                
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Project:                    CMake
Issue ID:                   15996
Category:                   CMake
Reproducibility:            always
Severity:                   minor
Priority:                   normal
Status:                     new
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Date Submitted:             2016-03-01 16:35 CET
Last Modified:              2016-03-01 16:35 CET
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Summary:                    Unable to zip files with CMake command-line tool
`tar` without path prefix in zip file
Description: 
Hi,

the current implementation does not allow to package the whole content of a
directory without listing every entry in the directory.

I would expect that executing a command line like `cmake -E tar cvf
../result.zip --format=zip .` would zip the whole content of the current working
directory.  While CMake packages all the files it prepends every entry with
'./', which I don't expect compared to the `zip` tool provided with most linux
distributions.

The alternative command line `cmake -E tar cvf ../result.zip $PWD` only creates
an empty zip file.

Steps to Reproduce: 
#!/usr/bin/sh
# cmake --version
# cmake version 3.4.1

mkdir zip_root
touch zip_root/file1
touch zip_root/file2
# The whole content of 'zip_root' should be zipped, so change working directory
cd zip_root

cmake -E tar cvf ../cmake-abs.zip --format=zip $PWD
# <no output>: $? = 0

cmake -E tar cvf ../cmake-rel.zip --format=zip .
# .
# ./file1
# ./file2
# $? = 0

zip ../zip-abs.zip $PWD
#   adding: $PWD/ (stored 0%)
# $? = 0

zip ../zip-rel.zip .
# zip error: Nothing to do! (../zip-rel.zip)
# $? = 12

zip -r ../zip-abs-rec.zip $PWD
# adding: $PWD/ (stored 0%)
# adding: $PWD/file1 (stored 0%)
# adding: $PWD/file2 (stored 0%)
# $? = 0

zip -r ../zip-rel-rec.zip .
# adding: file1 (stored 0%)
# adding: file2 (stored 0%)
# $? = 0

unzip -t ../cmake-abs.zip 
# Archive:  ../cmake-abs.zip
# warning [../cmake-abs.zip]:  zipfile is empty


unzip -t ../cmake-rel.zip 
# Archive:  ../cmake-rel.zip
#    testing: ./                       OK
#    testing: ./file1                  OK
#    testing: ./file2                  OK
# No errors detected in compressed data of ../cmake-rel.zip.

unzip -t ../zip-abs.zip 
# Archive:  ../zip-abs.zip
#    testing: $PWD/   OK
# No errors detected in compressed data of ../zip-abs.zip.

unzip -t ../zip-rel.zip 
# unzip:  cannot find or open ../zip-rel.zip, ../zip-rel.zip.zip or
../zip-rel.zip.ZIP.

unzip -t ../zip-abs-rec.zip 
# Archive:  ../zip-abs-rec.zip
#    testing: $PWD/   OK
#    testing: $PWD/file1   OK
#    testing: $PWD/file2   OK
# No errors detected in compressed data of ../zip-abs-rec.zip.

unzip -t ../zip-rel-rec.zip 
# Archive:  ../zip-rel-rec.zip
#    testing: file1                    OK
#    testing: file2                    OK
# No errors detected in compressed data of ../zip-rel-rec.zip.
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Issue History 
Date Modified    Username       Field                    Change               
====================================================================== 
2016-03-01 16:35 Marcel Metz    New Issue                                    
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