Mercurial > hg
annotate mercurial/help/revsets.txt @ 18669:18242716a014
blackbox: adds a blackbox extension
Adds a blackbox extension that listens to ui.log() and writes the messages to
.hg/blackbox.log. Future commits will use ui.log() to log commands, unhandled
exceptions, incoming changes, and hooks. The extension defaults to logging
everything, but can be configured via blackbox.track to only log certain events.
Log lines are of the format: "date time user> message"
Example log line:
2013/02/09 08:35:19 durham> 1 incoming changes - new heads: d84ced58aaa
author | Durham Goode <durham@fb.com> |
---|---|
date | Tue, 12 Feb 2013 14:08:33 -0800 |
parents | ddbe689af784 |
children | 3a4d8a6ce432 |
rev | line source |
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11382 | 1 Mercurial supports a functional language for selecting a set of |
2 revisions. | |
3 | |
4 The language supports a number of predicates which are joined by infix | |
5 operators. Parenthesis can be used for grouping. | |
6 | |
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7 Identifiers such as branch names may need quoting with single or |
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8 double quotes if they contain characters like ``-`` or if they match |
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9 one of the predefined predicates. |
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10 |
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11 Special characters can be used in quoted identifiers by escaping them, |
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12 e.g., ``\n`` is interpreted as a newline. To prevent them from being |
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13 interpreted, strings can be prefixed with ``r``, e.g. ``r'...'``. |
11382 | 14 |
15 There is a single prefix operator: | |
16 | |
17 ``not x`` | |
18 Changesets not in x. Short form is ``! x``. | |
19 | |
20 These are the supported infix operators: | |
21 | |
22 ``x::y`` | |
23 A DAG range, meaning all changesets that are descendants of x and | |
24 ancestors of y, including x and y themselves. If the first endpoint | |
25 is left out, this is equivalent to ``ancestors(y)``, if the second | |
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26 is left out it is equivalent to ``descendants(x)``. |
11382 | 27 |
28 An alternative syntax is ``x..y``. | |
29 | |
30 ``x:y`` | |
31 All changesets with revision numbers between x and y, both | |
32 inclusive. Either endpoint can be left out, they default to 0 and | |
33 tip. | |
34 | |
35 ``x and y`` | |
36 The intersection of changesets in x and y. Short form is ``x & y``. | |
37 | |
38 ``x or y`` | |
39 The union of changesets in x and y. There are two alternative short | |
40 forms: ``x | y`` and ``x + y``. | |
41 | |
42 ``x - y`` | |
43 Changesets in x but not in y. | |
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44 |
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45 ``x^n`` |
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46 The nth parent of x, n == 0, 1, or 2. |
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47 For n == 0, x; for n == 1, the first parent of each changeset in x; |
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48 for n == 2, the second parent of changeset in x. |
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49 |
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50 ``x~n`` |
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51 The nth first ancestor of x; ``x~0`` is x; ``x~3`` is ``x^^^``. |
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52 |
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53 There is a single postfix operator: |
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54 |
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55 ``x^`` |
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56 Equivalent to ``x^1``, the first parent of each changeset in x. |
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57 |
11382 | 58 |
59 The following predicates are supported: | |
60 | |
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61 .. predicatesmarker |
11382 | 62 |
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63 New predicates (known as "aliases") can be defined, using any combination of |
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64 existing predicates or other aliases. An alias definition looks like:: |
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65 |
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66 <alias> = <definition> |
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67 |
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68 in the ``revsetalias`` section of a Mercurial configuration file. Arguments |
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69 of the form `$1`, `$2`, etc. are substituted from the alias into the |
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70 definition. |
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71 |
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72 For example, |
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73 |
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74 :: |
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75 |
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76 [revsetalias] |
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77 h = heads() |
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78 d($1) = sort($1, date) |
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79 rs($1, $2) = reverse(sort($1, $2)) |
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80 |
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81 defines three aliases, ``h``, ``d``, and ``rs``. ``rs(0:tip, author)`` is |
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82 exactly equivalent to ``reverse(sort(0:tip, author))``. |
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83 |
11382 | 84 Command line equivalents for :hg:`log`:: |
85 | |
86 -f -> ::. | |
87 -d x -> date(x) | |
88 -k x -> keyword(x) | |
89 -m -> merge() | |
90 -u x -> user(x) | |
91 -b x -> branch(x) | |
92 -P x -> !::x | |
93 -l x -> limit(expr, x) | |
94 | |
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95 Some sample queries: |
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96 |
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97 - Changesets on the default branch:: |
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98 |
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99 hg log -r "branch(default)" |
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100 |
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101 - Changesets on the default branch since tag 1.5 (excluding merges):: |
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102 |
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103 hg log -r "branch(default) and 1.5:: and not merge()" |
11382 | 104 |
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105 - Open branch heads:: |
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106 |
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107 hg log -r "head() and not closed()" |
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108 |
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109 - Changesets between tags 1.3 and 1.5 mentioning "bug" that affect |
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110 ``hgext/*``:: |
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111 |
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112 hg log -r "1.3::1.5 and keyword(bug) and file('hgext/*')" |
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113 |
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114 - Changesets committed in May 2008, sorted by user:: |
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115 |
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116 hg log -r "sort(date('May 2008'), user)" |
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117 |
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118 - Changesets mentioning "bug" or "issue" that are not in a tagged |
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119 release:: |
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120 |
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121 hg log -r "(keyword(bug) or keyword(issue)) and not ancestors(tag())" |