From f6781ebc8bb011080f51b1533abc3f919ec56bfb Mon Sep 17 00:00:00 2001
From: Josh Holtrop <jholtrop+git@gmail.com>
Date: Fri, 14 Jan 2011 15:11:21 -0500
Subject: [PATCH] add jsvn Subversion wrapper and remove svn aliases

---
 bash_aliases | 42 ++-------------------------
 jsvn         | 81 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 84 insertions(+), 39 deletions(-)
 create mode 100755 jsvn

diff --git a/bash_aliases b/bash_aliases
index 895c907..1abea4e 100644
--- a/bash_aliases
+++ b/bash_aliases
@@ -17,25 +17,6 @@ alias grep='grep --color=auto'
 alias grepnosvn='grep --color=auto --exclude-dir=".svn"'
 alias egrepnosvn='egrep --color=auto --exclude-dir=".svn"'
 alias gvim='gvim --remote-tab-silent'
-alias svnst='svn st | grep -v "^X" | grep -v "^\$"'
-alias svn-root="svn info | grep '^URL: ' | sed -e 's/^URL: //' -re 's/\/(trunk|tags|branches)\>.*//'"
-function svn-branch()
-{
-    # do from anywhere in a working copy of the repository
-    # usage: svn-branch branch-name -m "comment"
-    local branch_name="$1"
-    shift 1
-    svn copy `svn-root`/trunk `svn-root`/branches/"$branch_name" "$@"
-}
-function svn-merge-branch()
-{
-    # usage: svn-merge-branch branch-name branch-dir -m "comment"
-    local branch_name="$1"
-    local branch_dir="$2"
-    shift 2
-    local branch_rev=$(svn log --stop-on-copy `svn-root`/branches/"$branch_name" | egrep -A1 -- '-{50}' | egrep '^r[0-9]+' | tail -n 1 | sed -re 's/^r([0-9]+).*/\1/')
-    svn merge -r${branch_rev}:HEAD `svn-root`/branches/"$branch_name""$branch_dir" "$@"
-}
 alias cribbage='cribbage -r'
 alias backgammon='backgammon -r -pb'
 # put 'cattodo' in $PROMPT_COMMAND to use
@@ -104,29 +85,12 @@ function git-config-joshs()
     git config --global core.excludesfile ${HOME}/.gitignore
     git config --global core.pager 'less -FRXi'
 }
-function svn()
-{
-    local subcommand="$1"
-    local realsvn=$(which svn 2>/dev/null)
-    local colorsvn=$(which colorsvn 2>/dev/null)
-    local colordiff=$(which colordiff 2>/dev/null)
-    if [[ "$realsvn" == "" ]]; then
-        echo "Subversion not found in \$PATH"
-        return
-    fi
-    if [[ "$subcommand" == "diff" && "$colordiff" != "" ]]; then
-        ${realsvn} "$@" | ${colordiff}
-        return
-    fi
-    if [[ "$colorsvn" != "" ]]; then
-        ${colorsvn} "$@"
-        return
-    fi
-    ${realsvn} "$@"
-}
 function svn-contributors()
 {
     svn log -q "$@" | grep -Ev '^-{30}' | cut -d '|' -f2 | awk '{ print $1 }' | sort | uniq -c | sort -n
 }
+if [[ "$(which jsvn)" != "" ]]; then
+    alias svn='jsvn'
+fi
 
 # local
diff --git a/jsvn b/jsvn
new file mode 100755
index 0000000..c4ef76e
--- /dev/null
+++ b/jsvn
@@ -0,0 +1,81 @@
+#!/usr/bin/env python
+
+# Josh's SVN wrapper script
+# Recommend putting in path as 'jsvn' or something other than 'svn' and
+# making an alias svn='jsvn'
+
+import sys
+import os
+import re
+from subprocess import *
+
+PATH = os.environ['PATH'].split(os.pathsep)
+
+def findInPath(cmd):
+    for p in PATH:
+        full_path = os.path.join(p, cmd)
+        if os.path.exists(full_path):
+            return full_path
+    return ''
+
+def getSVNURL(svn):
+    for line in Popen([svn, 'info'], stdout=PIPE).communicate()[0].split('\n'):
+        m = re.match('^URL:\s*(.*?)\s*$', line)
+        if m is not None:
+            return m.group(1)
+    return ''
+
+def getSVNRoot(svn):
+    url = getSVNURL(svn)
+    parts = url.split('/')
+    for i in range(0, len(parts)):
+        if parts[i] in ('trunk', 'tags', 'branches'):
+            return '/'.join(parts[:i-1])
+    return ''
+
+def getSVNTopLevel(svn):
+    url = getSVNURL(svn)
+    parts = url.split('/')
+    for i in range(0, len(parts)):
+        if parts[i] == 'trunk' or i > 0 and parts[i-1] in ('tags', 'branches'):
+            return '/'.join(parts[:i+1])
+    return ''
+
+def main(argv):
+    realsvn = findInPath('svn')
+    colorsvn = findInPath('colorsvn')
+    colordiff = findInPath('colordiff')
+
+    if realsvn == '':
+        sys.stderr.write("Error: 'svn' not found in path\n")
+        return 1
+
+    if len(argv) >= 1 and argv[0] == "branch":
+        if len(argv) < 2:
+            sys.stderr.write("Must supply branch name\n")
+            return 2
+        branch_name = argv[1]
+        origin = getSVNTopLevel(realsvn)
+        root = getSVNRoot(realsvn)
+        if origin == '' or root == '':
+            sys.stderr.write("Could not determine origin/root URL\n")
+            return 1
+        comment = "Created '%s' branch" % branch_name
+        branch_path = root + '/branches/' + branch_name
+        Popen([realsvn, 'copy', origin, branch_path, '-m', comment]).wait()
+        return 0
+
+    if len(argv) >= 1 and argv[0] == "diff" and colordiff != '':
+        diff_out = Popen([realsvn] + argv, stdout=PIPE).stdout
+        Popen([colordiff], stdin=diff_out).wait()
+        return 0
+
+    if colorsvn != '':
+        Popen([colorsvn] + argv).wait()
+        return 0
+
+    Popen([realsvn] + argv).wait()
+    return 0
+
+if __name__ == "__main__":
+    sys.exit(main(sys.argv[1:]))