Mercurial > hg > mercurial-crew-with-dirclash

annotate contrib/darcs2hg.py @ 2352:61909dfb316d

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various fixes to darcs conversion script 1. removed files were missed 2. hidden files in top directory were not added/removed correctly 3. suppressed spurious warning on adding new files. 4. hg changeset now checked in with original author and date 5. __file__ not supported by pdb.py
author TK Soh <teekaysoh@yahoo.com>
date Mon, 29 May 2006 16:46:31 +0800
parents 88c881bda888
children 5ec2dded1bda
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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88c881bda888 darcs2hg.py: import darcs project into mercurial
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1 #!/usr/bin/env python
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2 # Encoding: iso-8859-1
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3 # vim: tw=80 ts=4 sw=4 noet
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4 # -----------------------------------------------------------------------------
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5 # Project : Basic Darcs to Mercurial conversion script
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6 # -----------------------------------------------------------------------------
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7 # Author : Sebastien Pierre <sebastien@xprima.com>
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8 # Creation : 24-May-2006
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9 # Last mod : 26-May-2006
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10 # History :
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11 # 26-May-2006 - Updated
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12 # 24-May-2006 - First implementation
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13 # -----------------------------------------------------------------------------
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14
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15 import os, sys
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16 import tempfile
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17 import xml.dom.minidom as xml_dom
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18 from time import strptime, mktime
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19
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20 DARCS_REPO = None
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21 HG_REPO = None
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22
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23 USAGE = """\
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24 %s DARCSREPO HGREPO
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25
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26 Converts the given Darcs repository to a new Mercurial repository. The given
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27 HGREPO must not exist, as it will be created and filled up (this will avoid
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28 overwriting valuable data.
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29
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30 """ % (os.path.basename(sys.argv[0]))
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31
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32 # ------------------------------------------------------------------------------
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33 #
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34 # Utilities
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35 #
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36 # ------------------------------------------------------------------------------
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37
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38 def cmd(text, path=None):
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39 """Executes a command, in the given directory (if any), and returns the
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40 command result as a string."""
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41 cwd = None
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42 if path:
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43 path = os.path.abspath(path)
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44 cwd = os.getcwd()
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45 os.chdir(path)
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46 print text
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47 res = os.popen(text).read()
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48 if path:
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49 os.chdir(cwd)
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50 return res
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51
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52 def writefile(path, data):
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53 """Writes the given data into the given file."""
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54 f = file(path, "w") ; f.write(data) ; f.close()
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55
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56 # ------------------------------------------------------------------------------
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57 #
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58 # Darcs interface
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59 #
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60 # ------------------------------------------------------------------------------
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61
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62 def darcs_changes(darcsRepo):
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63 """Gets the changes list from the given darcs repository. This returns the
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64 chronological list of changes as (change name, change summary)."""
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65 changes = cmd("darcs changes --reverse --xml-output", darcsRepo)
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66 doc = xml_dom.parseString(changes)
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67 res = []
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68 for patch_node in doc.childNodes[0].childNodes:
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69 name = filter(lambda n:n.nodeName == "name", patch_node.childNodes)
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70 comm = filter(lambda n:n.nodeName == "comment", patch_node.childNodes)
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71 if not name:continue
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72 else: name = name[0].childNodes[0].data
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73 if not comm: comm = ""
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74 else: comm = comm[0].childNodes[0].data
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75 author = patch_node.getAttribute("author")
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76 date = patch_node.getAttribute("date")
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77 yield author, date, name, comm
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78
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79 def darcs_pull(hg_repo, darcs_repo, change):
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80 cmd("darcs pull '%s' --all --patches='%s'" % (darcs_repo, change), hg_repo)
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81
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82 # ------------------------------------------------------------------------------
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83 #
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84 # Mercurial interface
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85 #
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86 # ------------------------------------------------------------------------------
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87
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88 def hg_commit( hg_repo, text, author, date ):
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89 fd, tmpfile = tempfile.mkstemp(prefix="darcs2hg_")
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90 writefile(tmpfile, text)
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91 cmd("hg add -X _darcs", hg_repo)
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92 cmd("hg remove -X _darcs --after", hg_repo)
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93 cmd("hg commit -l %s -u '%s' -d '%s 0'" % (tmpfile, author, date), hg_repo)
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94 os.unlink(tmpfile)
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95
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96 # ------------------------------------------------------------------------------
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97 #
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98 # Main
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99 #
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100 # ------------------------------------------------------------------------------
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101
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102 if __name__ == "__main__":
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103 args = sys.argv[1:]
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104 # We parse the arguments
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105 if len(args) == 2:
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106 darcs_repo = os.path.abspath(args[0])
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107 hg_repo = os.path.abspath(args[1])
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108 else:
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109 print USAGE
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110 sys.exit(-1)
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111 # Initializes the target repo
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112 if not os.path.isdir(darcs_repo + "/_darcs"):
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113 print "No darcs directory found at: " + darc_repo
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114 sys.exit(-1)
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115 if not os.path.isdir(hg_repo):
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116 os.mkdir(hg_repo)
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117 else:
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118 print "Given HG repository must not exist. It will be created"
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119 sys.exit(-1)
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120 cmd("hg init '%s'" % (hg_repo))
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121 cmd("darcs initialize", hg_repo)
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122 # Get the changes from the Darcs repository
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123 for author, date, summary, description in darcs_changes(darcs_repo):
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124 text = summary + "\n" + description
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125 darcs_pull(hg_repo, darcs_repo, summary)
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126 epoch = int(mktime(strptime(date, '%Y%m%d%H%M%S')))
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TK Soh <teekaysoh@yahoo.com>
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127 hg_commit(hg_repo, text, author, epoch)
2349
88c881bda888 darcs2hg.py: import darcs project into mercurial
Sébastien Pierre <sebastien@xprima.com>
parents:
diff changeset
128
88c881bda888 darcs2hg.py: import darcs project into mercurial
Sébastien Pierre <sebastien@xprima.com>
parents:
diff changeset
129 # EOF
88c881bda888 darcs2hg.py: import darcs project into mercurial
Sébastien Pierre <sebastien@xprima.com>
parents:
diff changeset
130