Thread (4 messages) flat view 4 messages, 2 authors, 2016-06-15

Re: using git-svn with --no-metadata

From: Eric Wong <hidden>
Date: 2016-06-15 22:49:21
Subsystem: documentation, the rest · Maintainers: Jonathan Corbet, Linus Torvalds

Possibly related (same subject, not in this thread)

Eric Wong [off-list ref] wrote:
Vadim Zeitlin [off-list ref] wrote:
quoted
The documentation (for my 1.7.1 version) did say that:

	If you lose your .git/svn/git-svn/.rev_db file, git svn will not be
	able to rebuild it and you won't be able to fetch again, either.

but I understood it as meaning that I wouldn't be able to fetch again if
the file was lost (the file name appears to be wrong BTW, since the switch
to rev_map from rev_db some time ago)
I'll update the docs accordingly.
Hopefully the following patch makes sense, let me know what you think,
thanks.
From 4c169c696bee06472ca3511a0f58c1c1b52b9fe9 Mon Sep 17 00:00:00 2001
From: Eric Wong <redacted>
Date: Sat, 21 Aug 2010 18:52:14 +0000
Subject: [PATCH] Documentation/git-svn: discourage "noMetadata"

"noMetadata" is a limited and sometimes harmful option.
Recommend git-filter-branch instead (if at all) for one-shot
imports instead.

This also fixes an out-of-date reference to "rev_db" format,
noticed by Vadim Zeitlin.

Signed-off-by: Eric Wong <redacted>
---
 Documentation/git-svn.txt |   14 ++++++++++++--
 1 files changed, 12 insertions(+), 2 deletions(-)
diff --git a/Documentation/git-svn.txt b/Documentation/git-svn.txt
index 4b84d08..8abbcdc 100644
--- a/Documentation/git-svn.txt
+++ b/Documentation/git-svn.txt
@@ -56,6 +56,8 @@ COMMANDS
 	as well, they take precedence.
 --no-metadata;;
 	Set the 'noMetadata' option in the [svn-remote] config.
+	This option is not recommended, please read the 'svn.noMetadata'
+	section of this manpage before using this option.
 --use-svm-props;;
 	Set the 'useSvmProps' option in the [svn-remote] config.
 --use-svnsync-props;;
@@ -597,13 +599,21 @@ svn.noMetadata::
 svn-remote.<name>.noMetadata::
 	This gets rid of the 'git-svn-id:' lines at the end of every commit.
 +
-If you lose your .git/svn/git-svn/.rev_db file, 'git svn' will not
+If you lose your .git/svn/**/.rev_map.* files, 'git svn' will not
 be able to rebuild it and you won't be able to fetch again,
-either.  This is fine for one-shot imports.
+either.  This is sometimes useful for one-shot imports.
 +
 The 'git svn log' command will not work on repositories using
 this, either.  Using this conflicts with the 'useSvmProps'
 option for (hopefully) obvious reasons.
++
+This option is NOT recommended as it makes it difficult to track down
+old references to SVN revision numbers in existing documentation, bug
+reports and archives.  If you plan to eventually migrate from SVN to git
+and are certain about dropping SVN history, consider
+linkgit:git-filter-branch[1] instead.  filter-branch also allows
+reformating of metadata for ease-of-reading and rewriting authorship
+info for non-"svn.authorsFile" users.
 
 svn.useSvmProps::
 svn-remote.<name>.useSvmProps::
-- 
Eric Wong
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