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@@ -4,12 +4,11 b'' | |||
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4 | 4 | # ----------------------------------------------------------------------------- |
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5 | 5 | # Project : Basic Darcs to Mercurial conversion script |
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6 | 6 | # ----------------------------------------------------------------------------- |
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7 |
# Author |
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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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8 | 10 | # Creation : 24-May-2006 |
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9 |
# Last mod : |
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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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11 | # Last mod : 05-Jun-2006 | |
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13 | 12 | # ----------------------------------------------------------------------------- |
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14 | 13 | |
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15 | 14 | import os, sys |
@@ -21,12 +20,14 b' DARCS_REPO = None' | |||
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21 | 20 | HG_REPO = None |
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22 | 21 | |
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23 | 22 | USAGE = """\ |
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24 | %s DARCSREPO HGREPO | |
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23 | %s DARCSREPO HGREPO [SKIP] | |
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25 | 24 | |
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26 | 25 | Converts the given Darcs repository to a new Mercurial repository. The given |
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27 | 26 | HGREPO must not exist, as it will be created and filled up (this will avoid |
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28 | 27 | overwriting valuable data. |
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29 | 28 | |
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29 | In case an error occurs within the process, you can resume the process by | |
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30 | giving the last successfuly applied change number. | |
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30 | 31 | """ % (os.path.basename(sys.argv[0])) |
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31 | 32 | |
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32 | 33 | # ------------------------------------------------------------------------------ |
@@ -35,7 +36,7 b' USAGE = """\\' | |||
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35 | 36 | # |
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36 | 37 | # ------------------------------------------------------------------------------ |
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37 | 38 | |
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38 | def cmd(text, path=None): | |
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39 | def cmd(text, path=None, silent=False): | |
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39 | 40 | """Executes a command, in the given directory (if any), and returns the |
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40 | 41 | command result as a string.""" |
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41 | 42 | cwd = None |
@@ -43,7 +44,7 b' def cmd(text, path=None):' | |||
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43 | 44 | path = os.path.abspath(path) |
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44 | 45 | cwd = os.getcwd() |
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45 | 46 | os.chdir(path) |
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46 | print text | |
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47 | if not silent: print "> ", text | |
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47 | 48 | res = os.popen(text).read() |
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48 | 49 | if path: |
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49 | 50 | os.chdir(cwd) |
@@ -53,6 +54,14 b' def writefile(path, data):' | |||
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53 | 54 | """Writes the given data into the given file.""" |
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54 | 55 | f = file(path, "w") ; f.write(data) ; f.close() |
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55 | 56 | |
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57 | def error( *args ): | |
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58 | sys.stderr.write("ERROR: ") | |
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59 | for a in args: sys.stderr.write(str(a)) | |
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60 | sys.stderr.write("\n") | |
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61 | sys.stderr.write("You can make manual fixes if necessary and then resume by" | |
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62 | " giving the last changeset number") | |
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63 | sys.exit(-1) | |
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64 | ||
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56 | 65 | # ------------------------------------------------------------------------------ |
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57 | 66 | # |
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58 | 67 | # Darcs interface |
@@ -64,7 +73,6 b' def darcs_changes(darcsRepo):' | |||
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64 | 73 | chronological list of changes as (change name, change summary).""" |
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65 | 74 | changes = cmd("darcs changes --reverse --xml-output", darcsRepo) |
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66 | 75 | doc = xml_dom.parseString(changes) |
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67 | res = [] | |
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68 | 76 | for patch_node in doc.childNodes[0].childNodes: |
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69 | 77 | name = filter(lambda n:n.nodeName == "name", patch_node.childNodes) |
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70 | 78 | comm = filter(lambda n:n.nodeName == "comment", patch_node.childNodes) |
@@ -74,11 +82,21 b' def darcs_changes(darcsRepo):' | |||
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74 | 82 | else: comm = comm[0].childNodes[0].data |
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75 | 83 | author = patch_node.getAttribute("author") |
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76 | 84 | date = patch_node.getAttribute("date") |
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77 |
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78 |
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85 | chash = os.path.splitext(patch_node.getAttribute("hash"))[0] | |
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86 | yield author, date, name, chash, comm | |
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87 | ||
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88 | def darcs_tip(darcs_repo): | |
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89 | changes = cmd("darcs changes",darcs_repo,silent=True) | |
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90 | changes = filter(lambda l:l.strip().startswith("* "), changes.split("\n")) | |
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91 | return len(changes) | |
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79 | 92 | |
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80 |
def darcs_pull(hg_repo, darcs_repo, cha |
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81 | cmd("darcs pull '%s' --all --patches='%s'" % (darcs_repo, change), hg_repo) | |
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93 | def darcs_pull(hg_repo, darcs_repo, chash): | |
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94 | old_tip = darcs_tip(darcs_repo) | |
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95 | res = cmd("darcs pull '%s' --all --match='hash %s'" % (darcs_repo, chash), hg_repo) | |
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96 | print res | |
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97 | new_tip = darcs_tip(darcs_repo) | |
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98 | if not new_tip != old_tip + 1: | |
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99 | error("Darcs pull did not work as expected: " + res) | |
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82 | 100 | |
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83 | 101 | # ------------------------------------------------------------------------------ |
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84 | 102 | # |
@@ -89,10 +107,24 b' def darcs_pull(hg_repo, darcs_repo, chan' | |||
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89 | 107 | def hg_commit( hg_repo, text, author, date ): |
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90 | 108 | fd, tmpfile = tempfile.mkstemp(prefix="darcs2hg_") |
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91 | 109 | writefile(tmpfile, text) |
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110 | old_tip = hg_tip(hg_repo) | |
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92 | 111 | cmd("hg add -X _darcs", hg_repo) |
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93 | 112 | cmd("hg remove -X _darcs --after", hg_repo) |
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94 | cmd("hg commit -l %s -u '%s' -d '%s 0'" % (tmpfile, author, date), hg_repo) | |
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113 | res = cmd("hg commit -l %s -u '%s' -d '%s 0'" % (tmpfile, author, date), hg_repo) | |
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95 | 114 | os.unlink(tmpfile) |
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115 | new_tip = hg_tip(hg_repo) | |
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116 | if not new_tip == old_tip + 1: | |
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117 | # Sometimes we may have empty commits, we simply skip them | |
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118 | if res.strip().lower().find("nothing changed") != -1: | |
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119 | pass | |
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120 | else: | |
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121 | error("Mercurial commit did not work as expected: " + res) | |
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122 | ||
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123 | def hg_tip( hg_repo ): | |
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124 | """Returns the latest local revision number in the given repository.""" | |
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125 | tip = cmd("hg tip", hg_repo, silent=True) | |
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126 | tip = tip.split("\n")[0].split(":")[1].strip() | |
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127 | return int(tip) | |
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96 | 128 | |
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97 | 129 | # ------------------------------------------------------------------------------ |
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98 | 130 | # |
@@ -106,26 +138,41 b' if __name__ == "__main__":' | |||
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106 | 138 | if len(args) == 2: |
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107 | 139 | darcs_repo = os.path.abspath(args[0]) |
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108 | 140 | hg_repo = os.path.abspath(args[1]) |
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141 | skip = None | |
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142 | elif len(args) == 3: | |
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143 | darcs_repo = os.path.abspath(args[0]) | |
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144 | hg_repo = os.path.abspath(args[1]) | |
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145 | skip = int(args[2]) | |
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109 | 146 | else: |
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110 | 147 | print USAGE |
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111 | 148 | sys.exit(-1) |
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112 | 149 | # Initializes the target repo |
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113 | 150 | if not os.path.isdir(darcs_repo + "/_darcs"): |
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114 | print "No darcs directory found at: " + darc_repo | |
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151 | print "No darcs directory found at: " + darcs_repo | |
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115 | 152 | sys.exit(-1) |
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116 | 153 | if not os.path.isdir(hg_repo): |
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117 | 154 | os.mkdir(hg_repo) |
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118 | else: | |
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119 |
print "Given HG repository must not exist |
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155 | elif skip == None: | |
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156 | print "Given HG repository must not exist when no SKIP is specified." | |
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120 | 157 | sys.exit(-1) |
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158 | if skip == None: | |
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121 | 159 | cmd("hg init '%s'" % (hg_repo)) |
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122 | 160 | cmd("darcs initialize", hg_repo) |
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123 | 161 | # Get the changes from the Darcs repository |
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124 | for hash, author, date, summary, description in darcs_changes(darcs_repo): | |
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162 | change_number = 0 | |
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163 | for author, date, summary, chash, description in darcs_changes(darcs_repo): | |
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164 | print "== changeset", change_number, | |
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165 | if skip != None and change_number <= skip: | |
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166 | print "(skipping)" | |
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167 | else: | |
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125 | 168 | text = summary + "\n" + description |
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126 | darcs_pull(hg_repo, darcs_repo, hash) | |
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169 | darcs_pull(hg_repo, darcs_repo, chash) | |
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170 | # The commit hash has a date like 20021020201112 | |
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171 | # --------------------------------YYYYMMDDHHMMSS | |
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172 | date = chash.split("-")[0] | |
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127 | 173 | epoch = int(mktime(strptime(date, '%Y%m%d%H%M%S'))) |
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128 | 174 | hg_commit(hg_repo, text, author, epoch) |
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175 | change_number += 1 | |
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176 | print "Darcs repository (_darcs) was not deleted. You can keep or remove it." | |
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129 | 177 | |
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130 | 178 | # EOF |
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131 |
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