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| -rw-r--r-- | contrib/fast-import/p4-fast-export.py | 150 |
1 files changed, 150 insertions, 0 deletions
diff --git a/contrib/fast-import/p4-fast-export.py b/contrib/fast-import/p4-fast-export.py new file mode 100644 index 0000000000..238f6e3524 --- /dev/null +++ b/contrib/fast-import/p4-fast-export.py @@ -0,0 +1,150 @@ +#!/usr/bin/python +# +# p4-fast-export.py +# +# Author: Simon Hausmann <hausmann@kde.org> +# License: MIT <http://www.opensource.org/licenses/mit-license.php> +# +# TODO: - fix date parsing (how hard can it be?) +# - support integrations (at least p4i) +# - support incremental imports +# - create tags +# - instead of reading all files into a variable try to pipe from +# - p4 print directly to stdout. need to figure out file size somehow +# though. +# - support p4 submit (hah!) +# - don't hardcode the import to master +# +import os, string, sys + +# yep, that's hardcoded right. will fix to a commandline option rsn :) +prefix = "//depot/qt/main/" +# that's in revision range syntax, for example @2342,523634 +changeRange = "" + +def describe(change): + output = os.popen("p4 describe %s" % change).readlines() + + firstLine = output[0] + + author = firstLine.split(" ")[3] + author = author[:author.find("@")] + + filesSection = 0 + try: + filesSection = output.index("Affected files ...\n") + except ValueError: + sys.stderr.write("Change %s doesn't seem to affect any files. Weird.\n" % change) + return [], [], [], [] + + differencesSection = 0 + try: + differencesSection = output.index("Differences ...\n") + except ValueError: + sys.stderr.write("Change %s doesn't seem to have a differences section. Weird.\n" % change) + return [], [], [], [] + + log = output[2:filesSection - 1] + + lines = output[filesSection + 2:differencesSection - 1] + + changed = [] + removed = [] + + for line in lines: + # chop off "... " and trailing newline + line = line[4:len(line) - 1] + + lastSpace = line.rfind(" ") + if lastSpace == -1: + sys.stderr.write("trouble parsing line %s, skipping!\n" % line) + continue + + operation = line[lastSpace + 1:] + path = line[:lastSpace] + + if operation == "delete": + removed.append(path) + else: + changed.append(path) + + return author, log, changed, removed + +def p4cat(path): + return os.popen("p4 print -q \"%s\"" % path).read() + +def stripRevision(path): + hashPos = path.rindex("#") + return path[:hashPos] + +def getUserMap(): + users = {} + output = os.popen("p4 users") + for line in output: + firstSpace = line.index(" ") + secondSpace = line.index(" ", firstSpace + 1) + key = line[:firstSpace] + email = line[firstSpace + 1:secondSpace] + openParenPos = line.index("(", secondSpace) + closedParenPos = line.index(")", openParenPos) + name = line[openParenPos + 1:closedParenPos] + + users[key] = name + " " + email + + return users + + +users = getUserMap() + +output = os.popen("p4 changes %s...%s" % (prefix, changeRange)).readlines() + +changes = [] +for line in output: + changeNum = line.split(" ")[1] + changes.append(changeNum) + +changes.reverse() + +sys.stderr.write("\n") + +cnt = 0 +for change in changes: + [ author, log, changedFiles, removedFiles ] = describe(change) + sys.stderr.write("\rimporting revision %s (%s%%)" % (change, cnt * 100 / len(changes))) + cnt = cnt + 1 +# sys.stderr.write("%s\n" % log) +# sys.stderr.write("%s\n" % changedFiles) +# sys.stderr.write("%s\n" % removedFiles) + + print "commit refs/heads/master" + if author in users: + print "committer %s 1 2" % users[author] + else: + print "committer %s <a@b> 1 2" % author + print "data <<EOT" + for l in log: + print l[:len(l) - 1] + print "EOT" + + print "" + + for f in changedFiles: + if not f.startswith(prefix): + sys.stderr.write("\nchanged files: ignoring path %s outside of %s in change %s\n" % (f, prefix, change)) + continue + relpath = f[len(prefix):] + print "M 644 inline %s" % stripRevision(relpath) + data = p4cat(f) + print "data %s" % len(data) + sys.stdout.write(data) + print "" + + for f in removedFiles: + if not f.startswith(prefix): + sys.stderr.write("\ndeleted files: ignoring path %s outside of %s in change %s\n" % (f, prefix, change)) + continue + relpath = f[len(prefix):] + print "D %s" % stripRevision(relpath) + + print "" + |