Mercurial > hg
annotate tests/test-copies-in-changeset.t @ 42141:0e41f40b01cc
copies: add config option for writing copy metadata to file and/or changset
This introduces a config option that lets you choose to write copy
metadata to the changeset extras instead of to filelog. There's also
an option to write it to both places. I imagine that may possibly be
useful when transitioning an existing repo.
The copy metadata is stored as two fields in extras: one for copies
since p1 and one for copies since p2.
I may need to add more information later in order to make copy tracing
faster. Specifically, I'm thinking out recording which files were
added or removed so that copies._chaincopies() doesn't have to look at
the manifest for that. But that would just be an optimization and that
can be added once we know if it's necessary.
I have also considered saving space by using replacing the destination
file path by an index into the "files" list, but that can also be
changed later (but before the feature is ready to release).
Differential Revision: https://phab.mercurial-scm.org/D6183
author | Martin von Zweigbergk <martinvonz@google.com> |
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date | Wed, 27 Dec 2017 19:49:36 -0800 |
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children | 5382d8f8530b |
rev | line source |
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1 |
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2 $ cat >> $HGRCPATH << EOF |
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3 > [experimental] |
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4 > copies.write-to=changeset-only |
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5 > [alias] |
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6 > changesetcopies = log -r . -T 'files: {files} |
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7 > {extras % "{ifcontains("copies", key, "{key}: {value}\n")}"}' |
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8 > EOF |
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9 |
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10 Check that copies are recorded correctly |
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11 |
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12 $ hg init repo |
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13 $ cd repo |
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14 $ echo a > a |
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15 $ hg add a |
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16 $ hg ci -m initial |
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17 $ hg cp a b |
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18 $ hg cp a c |
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19 $ hg cp a d |
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20 $ hg ci -m 'copy a to b, c, and d' |
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21 $ hg changesetcopies |
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22 files: b c d |
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23 p1copies: b\x00a (esc) |
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24 c\x00a (esc) |
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25 d\x00a (esc) |
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26 |
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27 Check that renames are recorded correctly |
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28 |
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29 $ hg mv b b2 |
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30 $ hg ci -m 'rename b to b2' |
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31 $ hg changesetcopies |
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32 files: b b2 |
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33 p1copies: b2\x00b (esc) |
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34 |
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35 Rename onto existing file. This should get recorded in the changeset files list and in the extras, |
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36 even though there is no filelog entry. |
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37 |
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38 $ hg cp b2 c --force |
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39 $ hg st --copies |
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40 M c |
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41 b2 |
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42 $ hg debugindex c |
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43 rev linkrev nodeid p1 p2 |
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44 0 1 b789fdd96dc2 000000000000 000000000000 |
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45 $ hg ci -m 'move b onto d' |
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46 $ hg changesetcopies |
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47 files: c |
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48 p1copies: c\x00b2 (esc) |
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49 $ hg debugindex c |
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50 rev linkrev nodeid p1 p2 |
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51 0 1 b789fdd96dc2 000000000000 000000000000 |
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52 |
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53 Create a merge commit with copying done during merge. |
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54 |
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55 $ hg co 0 |
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56 0 files updated, 0 files merged, 3 files removed, 0 files unresolved |
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57 $ hg cp a e |
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58 $ hg cp a f |
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59 $ hg ci -m 'copy a to e and f' |
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60 created new head |
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61 $ hg merge 3 |
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62 3 files updated, 0 files merged, 0 files removed, 0 files unresolved |
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63 (branch merge, don't forget to commit) |
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64 File 'a' exists on both sides, so 'g' could be recorded as being from p1 or p2, but we currently |
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65 always record it as being from p1 |
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66 $ hg cp a g |
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67 File 'd' exists only in p2, so 'h' should be from p2 |
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68 $ hg cp d h |
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69 File 'f' exists only in p1, so 'i' should be from p1 |
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70 $ hg cp f i |
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71 $ hg ci -m 'merge' |
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72 $ hg changesetcopies |
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73 files: g h i |
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74 p1copies: g\x00a (esc) |
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75 i\x00f (esc) |
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76 p2copies: h\x00d (esc) |
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77 |
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78 Test writing to both changeset and filelog |
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79 |
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80 $ hg cp a j |
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81 $ hg ci -m 'copy a to j' --config experimental.copies.write-to=compatibility |
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82 $ hg changesetcopies |
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83 files: j |
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84 p1copies: j\x00a (esc) |
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85 $ hg debugdata j 0 |
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86 \x01 (esc) |
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87 copy: a |
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88 copyrev: b789fdd96dc2f3bd229c1dd8eedf0fc60e2b68e3 |
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89 \x01 (esc) |
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90 a |
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91 |
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92 Test writing only to filelog |
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93 |
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94 $ hg cp a k |
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95 $ hg ci -m 'copy a to k' --config experimental.copies.write-to=filelog-only |
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96 $ hg changesetcopies |
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97 files: k |
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98 $ hg debugdata k 0 |
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99 \x01 (esc) |
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100 copy: a |
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101 copyrev: b789fdd96dc2f3bd229c1dd8eedf0fc60e2b68e3 |
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102 \x01 (esc) |
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103 a |
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104 |
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105 $ cd .. |