# Svn pre-commit hook **URL:** \ **Category:** ruby-talk\ **Created:** [10 March 2006 21:28 UTC](https://rubytalk.org/t/svn-pre-commit-hook/25646 "2006-03-10T21:28:43Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![BIl\_Kleb1](https://avatars.discourse-cdn.com/v4/letter/b/a587f6/32.png) [@BIl\_Kleb1](https://rubytalk.org/u/BIl_Kleb1)\ **Post date:** [10 March 2006 21:28 UTC](https://rubytalk.org/t/svn-pre-commit-hook/25646/1 "2006-03-10T21:28:43Z")
OK, I give up. Can someone (Kou?) please sketch out how to intercept a Subversion transaction with a pre-commit hook and throw each file matching, say, /\.rb$/ to some StyleChecker? Based on Kou's svnlook,   [https://svn.collab.net/repos/svn/trunk/tools/examples/svnlook.rb](https://svn.collab.net/repos/svn/trunk/tools/examples/svnlook.rb) and the bindings,   [http://svn.collab.net/repos/svn/trunk/subversion/bindings/swig/ruby/svn/](http://svn.collab.net/repos/svn/trunk/subversion/bindings/swig/ruby/svn/) it seems that Svn:Fs might be the answer, but I'm having trouble figuring out SVN transactions -- the manual says very little about these creatures. Thanks, > **···** > > -- > Bil > [http://fun3d.larc.nasa.gov](http://fun3d.larc.nasa.gov) ---
**Author:** ![Collins\_Justin](https://avatars.discourse-cdn.com/v4/letter/c/e19adc/32.png) [@Collins\_Justin](https://rubytalk.org/u/Collins_Justin)\ **Post date:** [10 March 2006 21:44 UTC](https://rubytalk.org/t/svn-pre-commit-hook/25646/2 "2006-03-10T21:44:00Z")
Bil Kleb wrote: > OK, I give up. > > Can someone (Kou?) please sketch out how to intercept > a Subversion transaction with a pre-commit hook and > throw each file matching, say, /\.rb$/ to some StyleChecker? > > Based on Kou's svnlook, > > [https://svn.collab.net/repos/svn/trunk/tools/examples/svnlook.rb](https://svn.collab.net/repos/svn/trunk/tools/examples/svnlook.rb) > > and the bindings, > > [http://svn.collab.net/repos/svn/trunk/subversion/bindings/swig/ruby/svn/](http://svn.collab.net/repos/svn/trunk/subversion/bindings/swig/ruby/svn/) > > it seems that Svn:Fs might be the answer, but I'm having > trouble figuring out SVN transactions -- the manual says > very little about these creatures. > > Thanks, > -- > Bil > [http://fun3d.larc.nasa.gov](http://fun3d.larc.nasa.gov) I don't know about pre-commit hooks, but here's a post-commit hook I wrote the other day. Not fancy or anything, but will maybe give you an idea? I just used the normal 'svnlook'. > #!/usr/bin/env ruby > require 'net/smtp' > > if ARGV.length != 2 >   puts "Usage: post-commit [repos] [revision]" > end > > def parse\_changed(change\_list) >   added = Array.new >   modified = Array.new >   deleted = Array.new >   other = Array.new >   change\_list = change\_list.split("\n") > >   change\_list.each { |changed| > >     #changed file/dir is preceded by U/D/A >     mod = changed[0, 1] >      >     case mod >     when 'U' >       modified \<\< changed[1..-1] >     when 'A' >       added \<\< changed[1..-1] >     when 'D' >       deleted \<\< changed[1..-1] >     else >       other \<\< changed >     end >   } > >   change\_string = String.new > >   if not added.empty? >     change\_string \<\< "Added:\n" \<\< added.join("\n") \<\< "\n" >   end > >   if not modified.empty? >     change\_string \<\< "Modified:\n" \<\< modified.join("\n") \<\< "\n" >   end > >   if not deleted.empty? >     change\_string \<\< "Deleted:\n" \<\< deleted.join("\n") \<\< "\n" >   end > >   if not other.empty? >     change\_string \<\< "Other:\n" \<\< other.join("\n") \<\< "\n" >   end > >   return change\_string > end >    > recipients = ['fake@fake.com'] > > repository = ARGV[0] > revision = ARGV[1] > > author = `svnlook author #{repository} --revision #{revision}`.chomp.capitalize > date = `svnlook date #{repository} --revision #{revision}`.chomp > changed = parse\_changed(`svnlook changed #{repository} --revision #{revision}`.chomp) > diff = `svnlook diff #{repository} --revision #{revision} --no-diff-deleted` > log = `svnlook log #{repository} --revision #{revision}` > > message = \<\ To: #{recipients.join(',')} > From: SVN \ > Subject: SVN Commit: Revision #{revision} by #{author} > > Author: #{author} > Date: #{date} > Revision: #{revision} > > #{changed} > > Log Message: > #{log} > > #{diff} > > END\_OF\_MESSAGE > > if $DEBUG >   puts message >   exit > end > > Net::SMTP.start('smtp.host.net', 25, 'host.net', 'fake@fake.net', 'password') { |smtp| > >     smtp.send\_message(message, 'fake@fake.net', recipients) >      > } >    > -Justin ---
**Author:** ![Kouhei\_Sutou1](https://yyz1.discourse-cdn.com/flex029/user_avatar/rubytalk.org/kouhei_sutou1/32/2034_2.png) [@Kouhei\_Sutou1](https://rubytalk.org/u/Kouhei_Sutou1)\ **Post date:** [13 March 2006 14:58 UTC](https://rubytalk.org/t/svn-pre-commit-hook/25646/3 "2006-03-13T14:58:23Z")
Hi, In \   "svn pre-commit hook" on Sat, 11 Mar 2006 06:28:43 +0900, > Can someone (Kou?) please sketch out how to intercept > a Subversion transaction with a pre-commit hook and > throw each file matching, say, /\.rb$/ to some StyleChecker? What about attached script? You can use the attached script with the following pre-commit script:   #!/bin/sh   REPOS="$1"   TXN="$2"   /.../ruby \     /.../pre-check-file.rb "$REPOS" "$TXN" \     -p PATTERN1 -c CHECK\_COMMAND1 \     -p PATTERN2 -c CHECK\_COMMAND2 \     ... \     \>\> exit 1   exit 0 For example (reject space indented Ruby scripts and C programs):   #!/bin/sh   REPOS="$1"   TXN="$2"   /usr/bin/ruby \     ~/work/ruby/pre-check-file.rb "$REPOS" "$TXN" \     -p \.rb$ -c 'grep -v ^ ' \     -p \.c$ -c 'grep -v ^ ' \     \>\> exit 1   exit 0 Thanks, [pre-check-file.rb](https://rubytalk.org/uploads/short-url/gJYaSI4zoFnDnBE90fP5WL0VClc.rb) (3.79 KB) > **···** > > Bil Kleb \ wrote: > -- > kou ---
**Author:** ![BIl\_Kleb1](https://avatars.discourse-cdn.com/v4/letter/b/a587f6/32.png) [@BIl\_Kleb1](https://rubytalk.org/u/BIl_Kleb1)\ **Post date:** [10 March 2006 22:03 UTC](https://rubytalk.org/t/svn-pre-commit-hook/25646/4 "2006-03-10T22:03:42Z")
Justin Collins wrote: > I don't know about pre-commit hooks, but here's a post-commit hook I wrote the other day. Not fancy or anything, but will maybe give you an idea? Thanks. > I just used the normal 'svnlook'. If you have the SVN Ruby bindings compiled, you could use Kouhei's commit-email.rb for post-hook mailings (and RSS feed):   [https://svn.collab.net/repos/svn/trunk/tools/hook-scripts/commit-email.rb](https://svn.collab.net/repos/svn/trunk/tools/hook-scripts/commit-email.rb) If you want HTML output also, see   [https://svn.collab.net/repos/svn/trunk/tools/examples/svnlog2html.rb](https://svn.collab.net/repos/svn/trunk/tools/examples/svnlog2html.rb) Regards, > **···** > > -- > Bil > [http://fun3d.larc.nasa.gov](http://fun3d.larc.nasa.gov) ---
**Author:** ![BIl\_Kleb1](https://avatars.discourse-cdn.com/v4/letter/b/a587f6/32.png) [@BIl\_Kleb1](https://rubytalk.org/u/BIl_Kleb1)\ **Post date:** [13 March 2006 15:13 UTC](https://rubytalk.org/t/svn-pre-commit-hook/25646/5 "2006-03-13T15:13:45Z")
Kouhei Sutou wrote: > Hi, Hello. > What about attached script? Excellent, Thanks! This is the nugget I most craved: >   def changed\_paths(base\_rev=nil) >     base\_rev ||= @txn.base\_revision >     base\_root = @fs.root(base\_rev) >     editor = Svn::Delta::ChangedEditor.new(@root, base\_root) >     base\_root.dir\_delta('', '', @root, '', editor) >     (editor.added\_files + editor.updated\_files).uniq.sort >   end Thanks again, > **···** > > -- > Bil > [http://fun3d.larc.nasa.gov](http://fun3d.larc.nasa.gov)