Mercurial > hg > mercurial-crew-with-dirclash

annotate contrib/darcs2hg.py @ 2586:bb63d29ce03d

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darcs2hg: improved logging
author Sébastien Pierre <sebastien@xprima.com>
date Mon, 10 Jul 2006 09:24:04 -0700
parents 5ec2dded1bda
children 8210cf2ec19d
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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 # Authors : Sebastien Pierre <sebastien@xprima.com>
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8 # TK Soh <teekaysoh@gmail.com>
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9 # -----------------------------------------------------------------------------
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10 # Creation : 24-May-2006
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11 # Last mod : 01-Jun-2006
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12 # -----------------------------------------------------------------------------
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13
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14 import os, sys
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15 import tempfile
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16 import xml.dom.minidom as xml_dom
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17 from time import strptime, mktime
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18
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19 DARCS_REPO = None
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20 HG_REPO = None
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21
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22 USAGE = """\
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23 %s DARCSREPO HGREPO
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24
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25 Converts the given Darcs repository to a new Mercurial repository. The given
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26 HGREPO must not exist, as it will be created and filled up (this will avoid
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27 overwriting valuable data.
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28
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29 """ % (os.path.basename(sys.argv[0]))
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30
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31 # ------------------------------------------------------------------------------
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32 #
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33 # Utilities
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34 #
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35 # ------------------------------------------------------------------------------
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36
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37 def cmd(text, path=None, silent=False):
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38 """Executes a command, in the given directory (if any), and returns the
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39 command result as a string."""
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40 cwd = None
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41 if path:
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42 path = os.path.abspath(path)
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43 cwd = os.getcwd()
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44 os.chdir(path)
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45 if not silent: print "> ", text
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46 res = os.popen(text).read()
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47 if path:
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48 os.chdir(cwd)
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49 return res
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51 def writefile(path, data):
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52 """Writes the given data into the given file."""
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53 f = file(path, "w") ; f.write(data) ; f.close()
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54
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55 def error( *args ):
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56 sys.stderr.write("ERROR:")
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57 for a in args: sys.stderr.write(str(a))
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58 sys.stderr.write("\n")
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59 sys.exit(-1)
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60
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61 # ------------------------------------------------------------------------------
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62 #
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63 # Darcs interface
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64 #
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65 # ------------------------------------------------------------------------------
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66
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67 def darcs_changes(darcsRepo):
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68 """Gets the changes list from the given darcs repository. This returns the
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69 chronological list of changes as (change name, change summary)."""
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70 changes = cmd("darcs changes --reverse --xml-output", darcsRepo)
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71 doc = xml_dom.parseString(changes)
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72 for patch_node in doc.childNodes[0].childNodes:
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73 name = filter(lambda n:n.nodeName == "name", patch_node.childNodes)
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74 comm = filter(lambda n:n.nodeName == "comment", patch_node.childNodes)
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75 if not name:continue
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76 else: name = name[0].childNodes[0].data
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77 if not comm: comm = ""
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78 else: comm = comm[0].childNodes[0].data
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79 author = patch_node.getAttribute("author")
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80 date = patch_node.getAttribute("date")
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81 hash = patch_node.getAttribute("hash")
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82 yield hash, author, date, name, comm
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83
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84 def darcs_pull(hg_repo, darcs_repo, change):
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85 cmd("darcs pull '%s' --all --patches='%s'" % (darcs_repo, change), hg_repo)
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86
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87 # ------------------------------------------------------------------------------
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88 #
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89 # Mercurial interface
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90 #
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91 # ------------------------------------------------------------------------------
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92
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93 def hg_commit( hg_repo, text, author, date ):
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94 fd, tmpfile = tempfile.mkstemp(prefix="darcs2hg_")
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95 writefile(tmpfile, text)
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96 cmd("hg add -X _darcs", hg_repo)
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97 cmd("hg remove -X _darcs --after", hg_repo)
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98 cmd("hg commit -l %s -u '%s' -d '%s 0'" % (tmpfile, author, date), hg_repo)
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99 os.unlink(tmpfile)
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100
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101 # ------------------------------------------------------------------------------
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102 #
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103 # Main
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104 #
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105 # ------------------------------------------------------------------------------
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106
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107 if __name__ == "__main__":
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108 args = sys.argv[1:]
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109 # We parse the arguments
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110 if len(args) == 2:
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111 darcs_repo = os.path.abspath(args[0])
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112 hg_repo = os.path.abspath(args[1])
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113 else:
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114 print USAGE
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115 sys.exit(-1)
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116 # Initializes the target repo
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117 if not os.path.isdir(darcs_repo + "/_darcs"):
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118 print "No darcs directory found at: " + darcs_repo
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119 sys.exit(-1)
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120 if not os.path.isdir(hg_repo):
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121 os.mkdir(hg_repo)
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122 else:
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123 print "Given HG repository must not exist. It will be created"
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124 sys.exit(-1)
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125 cmd("hg init '%s'" % (hg_repo))
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126 cmd("darcs initialize", hg_repo)
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127 # Get the changes from the Darcs repository
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128 for hash, author, date, summary, description in darcs_changes(darcs_repo):
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88c881bda888 darcs2hg.py: import darcs project into mercurial
Sébastien Pierre <sebastien@xprima.com>
parents:
diff changeset
129 text = summary + "\n" + description
2585
5ec2dded1bda darcs2hg.py: use darcs patch hash as patch identifier
Nils Decker <mercurial@ndecker.de>
parents: 2352
diff changeset
130 darcs_pull(hg_repo, darcs_repo, hash)
2352
61909dfb316d various fixes to darcs conversion script
TK Soh <teekaysoh@yahoo.com>
parents: 2349
diff changeset
131 epoch = int(mktime(strptime(date, '%Y%m%d%H%M%S')))
61909dfb316d various fixes to darcs conversion script
TK Soh <teekaysoh@yahoo.com>
parents: 2349
diff changeset
132 hg_commit(hg_repo, text, author, epoch)
2349
88c881bda888 darcs2hg.py: import darcs project into mercurial
Sébastien Pierre <sebastien@xprima.com>
parents:
diff changeset
133
88c881bda888 darcs2hg.py: import darcs project into mercurial
Sébastien Pierre <sebastien@xprima.com>
parents:
diff changeset
134 # EOF