| About this directory. |
| |
| |
| This subdirectory has two branches. |
| They are copies of /trunk:13253 and are merged from trunk from time |
| to time. |
| - text-time |
| This branch is dedicated for the versioning of the text-time |
| attribute for files. See below for details. |
| This part has beta-quality. |
| - owner-group-mode |
| Here the versioning of owner, group, and unix-filemode is implemented. |
| This part is more like an early alpha. |
| - patches |
| Here I will store patches of the functionalities above; this is meant |
| for people running of /trunk, who want to test this parts. |
| The patches for owner-group-mode will not depend on the text-time-patches; |
| they will include them. |
| |
| |
| Why meta-data versioning? |
| |
| There has been much discussion whether, and to a smaller extent, how |
| meta-data should be versioned. |
| Some argue that this is not a requirement of subversion itself, but |
| should be done by wrapper scripts; IMO it makes much sense to do that |
| inside subversion, as only one run through a wc is required on commit. |
| |
| |
| How does this work? |
| |
| The general approach is as follows: |
| - A file about to be committed is checked for the properties |
| svn:text-time, svn:owner, svn:group, svn:unix-mode |
| - Each of these properties gets set to the current value of the file, |
| if it exists. |
| So the mtime of a file is only versioned, if the file has the property |
| svn:text-time set (to any value) |
| - The initial property setting can be achieved by auto-props. |
| - If the configuration value "use-commit-times" is set to "yes", then |
| on checkout/update/export the stored values should [1] be used |
| to restore the files' meta-data. |
| |
| Example of ~/.subversion/config: |
| [miscellany] |
| use-commit-times = yes |
| enable-auto-props = yes |
| |
| [auto-props] |
| * = svn:text-time=yes;svn:owner=yes;svn:group=yes;svn:unix-mode=yes |
| |
| |
| Known problems: |
| - The functionality is incomplete/has bugs, the meta-data is not restored |
| on every occasion. |
| Whereas text-time is mostly complete, the other properties need work. |
| - As mentioned by Philip Martin in |
| http://marc.theaimsgroup.com/?l=subversion-dev&m=110729651620515&w=2, |
| the way conflicts are treated has to be specified. |
| |
| |
| Last updated: 04 Mar 2005. |
| |
| |
| |
| References |
| |
| 1. Issue 1256. Discussion about svn:text-time. |
| http://subversion.tigris.org/issues/show_bug.cgi?id=1256 |
| |
| 2. Feb. 2005 - discussion about mtime versioning on the mailing list. |
| Fwd: Feature request: Keep file dates |
| http://marc.theaimsgroup.com/?l=subversion-dev&m=110917936530930&w=2 |
| |
| 3. Feb. 2005 - Announce of first o-g-m patch on ml |
| [PATCH] svn now stores unix-owner, -group, and -mode too |
| http://marc.theaimsgroup.com/?l=subversion-dev&m=110724160930812&w=2 |
| |
| 4. May 2003 - Thread with first patches for mtime versioning on ml |
| saving time stamps of files |
| http://marc.theaimsgroup.com/?l=subversion-dev&m=105238644900470&w=2 |
| |
| |
| Notes |
| |
| [1] "Should". If they *would* be used in every case, the branches would |
| be finished (and not alpha or beta quality). |
| |
| |
