Mercurial > hg > mercurial-crew-with-dirclash
annotate tests/test-import @ 2577:fa76c5d609c9
bdiff: improve worst case behavior by 100x.
on 5.8MB (244.000 lines) text file with similar lines, hash before
this change made diff against empty file take 75 seconds. this change
improves performance to 0.6 seconds. result is that clone of smallish
repo (137MB) with some files like this takes 1 minute instead of 10
minutes.
common case of diff is 10% slower now, probably because of worse cache
locality. but diff does not affect overall performance in common case
(less than 1% of runtime is in diff when it is working ok), so this
tradeoff looks good.
author | Vadim Gelfer <vadim.gelfer@gmail.com> |
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date | Fri, 07 Jul 2006 15:02:55 -0700 |
parents | f22e3e8fd457 |
children | 871ca5b9d348 |
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2513
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1 #!/bin/sh |
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2 |
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3 hg init a |
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4 echo line 1 > a/a |
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5 hg --cwd a ci -d '0 0' -Ama |
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6 |
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7 echo line 2 >> a/a |
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8 hg --cwd a ci -u someone -d '1 0' -m'second change' |
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9 |
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10 echo % import exported patch |
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11 hg clone -r0 a b |
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12 hg --cwd a export tip > tip.patch |
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13 hg --cwd b import ../tip.patch |
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14 echo % message should be same |
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15 hg --cwd b tip | grep 'second change' |
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16 echo % committer should be same |
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17 hg --cwd b tip | grep someone |
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18 rm -rf b |
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19 |
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20 echo % import of plain diff should fail without message |
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21 hg clone -r0 a b |
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22 hg --cwd a diff -r0:1 > tip.patch |
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23 hg --cwd b import ../tip.patch |
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24 rm -rf b |
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25 |
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26 echo % import of plain diff should be ok with message |
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27 hg clone -r0 a b |
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28 hg --cwd a diff -r0:1 > tip.patch |
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29 hg --cwd b import -mpatch ../tip.patch |
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30 rm -rf b |
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31 |
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32 echo % import from stdin |
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33 hg clone -r0 a b |
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34 hg --cwd a export tip | hg --cwd b import - |
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35 rm -rf b |
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36 |
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37 echo % override commit message |
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38 hg clone -r0 a b |
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39 hg --cwd a export tip | hg --cwd b import -m 'override' - |
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40 hg --cwd b tip | grep override |
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41 rm -rf b |
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42 |
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43 cat > mkmsg.py <<EOF |
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44 import email.Message, sys |
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45 msg = email.Message.Message() |
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46 msg.set_payload('email commit message\n' + open('tip.patch').read()) |
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47 msg['Subject'] = 'email patch' |
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48 msg['From'] = 'email patcher' |
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49 sys.stdout.write(msg.as_string()) |
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50 EOF |
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51 |
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52 echo % plain diff in email, subject, message body |
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53 hg clone -r0 a b |
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54 hg --cwd a diff -r0:1 > tip.patch |
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55 python mkmsg.py > msg.patch |
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56 hg --cwd b import ../msg.patch |
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57 hg --cwd b tip | grep email |
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58 rm -rf b |
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59 |
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60 echo % plain diff in email, no subject, message body |
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61 hg clone -r0 a b |
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62 grep -v '^Subject:' msg.patch | hg --cwd b import - |
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63 rm -rf b |
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64 |
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65 echo % plain diff in email, subject, no message body |
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66 hg clone -r0 a b |
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67 grep -v '^email ' msg.patch | hg --cwd b import - |
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68 rm -rf b |
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69 |
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70 echo % plain diff in email, no subject, no message body, should fail |
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71 hg clone -r0 a b |
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72 grep -v '^\(Subject\|email\)' msg.patch | hg --cwd b import - |
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73 rm -rf b |
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74 |
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75 echo % hg export in email, should use patch header |
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76 hg clone -r0 a b |
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77 hg --cwd a export tip > tip.patch |
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import: added tests, fixed bugs found by tests and asak.
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78 python mkmsg.py | hg --cwd b import - |
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79 hg --cwd b tip | grep second |
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80 rm -rf b |
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81 |