Mercurial > hg
annotate mercurial/help/revisions.txt @ 22373:f6a1386d540e
revert: no backup for `dsadded` set
There is only one case where a backup is required in the `dsadded` set, and the
current backup mechanism fails to handle it. So we stop trying to do backups at
all for now. This will help us to simplify the backup code and finally fix
this backup issue.
author | Pierre-Yves David <pierre-yves.david@fb.com> |
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date | Sat, 30 Aug 2014 01:49:28 +0200 |
parents | 4edd179fefb8 |
children | bbb5cc55ab8b |
rev | line source |
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1 Mercurial supports several ways to specify individual revisions. |
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2 |
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3 A plain integer is treated as a revision number. Negative integers are |
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4 treated as sequential offsets from the tip, with -1 denoting the tip, |
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5 -2 denoting the revision prior to the tip, and so forth. |
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6 |
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7 A 40-digit hexadecimal string is treated as a unique revision |
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8 identifier. |
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9 |
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10 A hexadecimal string less than 40 characters long is treated as a |
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11 unique revision identifier and is referred to as a short-form |
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12 identifier. A short-form identifier is only valid if it is the prefix |
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13 of exactly one full-length identifier. |
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14 |
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15 Any other string is treated as a bookmark, tag, or branch name. A |
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16 bookmark is a movable pointer to a revision. A tag is a permanent name |
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17 associated with a revision. A branch name denotes the tipmost open branch head |
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18 of that branch - or if they are all closed, the tipmost closed head of the |
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19 branch. Bookmark, tag, and branch names must not contain the ":" character. |
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20 |
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21 The reserved name "tip" always identifies the most recent revision. |
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22 |
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23 The reserved name "null" indicates the null revision. This is the |
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24 revision of an empty repository, and the parent of revision 0. |
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25 |
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26 The reserved name "." indicates the working directory parent. If no |
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27 working directory is checked out, it is equivalent to null. If an |
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28 uncommitted merge is in progress, "." is the revision of the first |
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29 parent. |