Mercurial > hg > mercurial-crew-with-dirclash

annotate contrib/darcs2hg.py @ 2569:2264b2b077a1

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run-tests.py: make tests use same python interpreter as test harness. this is wanted because some tests run python interpreter directly. must use same python interpreter in tests as in main harness or problems will happen because of e.g. different python abi if run-tests.py run with python 2.5 but system python is 2.4. fix is to see if system python is used and is named python. if no, put symlink called python at front of shell search path.
author Vadim Gelfer <vadim.gelfer@gmail.com>
date Thu, 06 Jul 2006 10:09:24 -0700
parents 61909dfb316d
children 5ec2dded1bda
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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')))
61909dfb316d various fixes to darcs conversion script
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>
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128
88c881bda888 darcs2hg.py: import darcs project into mercurial
Sébastien Pierre <sebastien@xprima.com>
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129 # EOF
88c881bda888 darcs2hg.py: import darcs project into mercurial
Sébastien Pierre <sebastien@xprima.com>
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130