[jira] [Closed] (HAWQ-888) Remove some dummy files which were used to keep related "empty" directories.

["Paul Guo (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HAWQ-888?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Paul Guo closed HAWQ-888.
-------------------------
    Resolution: Fixed

> Remove some dummy files which were used to keep related "empty" directories.
> ----------------------------------------------------------------------------
>
>                 Key: HAWQ-888
>                 URL: https://issues.apache.org/jira/browse/HAWQ-888
>             Project: Apache HAWQ
>          Issue Type: Bug
>          Components: Build
>            Reporter: Paul Guo
>            Assignee: Paul Guo
>
> After building with pgcrypto, plr, orca, the git repos will have the following tracked files. 
> Changes not staged for commit:
>   (use "git add/rm <file>..." to update what will be committed)
>   (use "git checkout -- <file>..." to discard changes in working directory)
>     deleted:    gp-xerces/git_keep_empty_directory.readme
>     deleted:    gporca/git_keep_empty_directory.readme
>     deleted:    gpos/git_keep_empty_directory.readme
>     deleted:    postgres/git_keep_empty_directory.readme
>     deleted:    ../../src/pl/plr/git_keep_empty_directory.readme
> Those files are just to remind developers to not write the directory (git does not save empty directories). This is really annoying. .gitignore does not resolve this issue.
> A simple and elegant solution is:
> git update-index --assume-unchanged 
> however followering error is seen after parallel building, 
> fatal: Unable to create '/data2/github/incubator-hawq/.git/index.lock': File exists.
> If no other git process is currently running, this probably means a
> git process crashed in this repository earlier. Make sure no other git
> process is running and remove the file manually to continue.
> I do not want to waste too much time in digging into git internals, instead,
> I'd try another simple solution:
> -       rm -f git_keep_empty_directory.readme; \
> +       mv -f gporca.git_keep_empty_directory.readme ..; \
>         [ ! -d .git ] && git clone $(gporca_git) . && git checkout $(gporca_branch); \
> +       mv -f ../gporca.git_keep_empty_directory.readme .; \



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