Mercurial > hg
annotate tests/test-patch-offset.t @ 25596:c1975809a6b5
templater: take any string literals as template, but not for rawstring (BC)
This patch series is intended to unify the interpretation of string literals.
It is breaking change that boldly assumes
a. string literal "..." never contains template-like fragment or it is
intended to be a template
b. we tend to use raw string literal r"..." for regexp pattern in which "{"
should have different meaning
Currently, we don't have a comprehensible rule how string literals are
evaluated in template functions. For example, fill() takes "initialindent"
and "hangindent" as templates, but not for "text", whereas "text" is a
template in pad() function.
date(date, fmt)
diff(includepattern, excludepattern)
fill(text, width, initialident: T, hangindent: T)
get(dict, key)
if(expr, then: T, else: T)
ifcontains(search, thing, then: T, else: T)
ifeq(expr1, expr2, then: T, else: T)
indent(text, indentchars, firstline)
join(list, sep)
label(label: T, expr: T)
pad(text: T, width, fillchar, right)
revset(query, formatargs...])
rstdoc(text, style)
shortest(node, minlength)
startswith(pattern, text)
strip(text, chars)
sub(pattern, replacement, expression: T)
word(number, text, separator)
expr % template: T
T: interpret "string" or r"rawstring" as template
This patch series adjusts the rule as follows:
a. string literal, '' or "", starts template processing (BC)
b. raw string literal, r'' or r"", disables both \-escape and template
processing (BC, done by subsequent patches)
c. fragment not surrounded by {} is non-templated string
"ccc{'aaa'}{r'bbb'}"
------------------ *: template
--- c: string
--- a: template
--- b: rawstring
Because this can eliminate the compilation of template arguments from the
evaluation phase, "hg log -Tdefault" gets faster.
% cd mozilla-central
% LANG=C HGRCPATH=/dev/null hg log -Tdefault -r0:10000 --time > /dev/null
before: real 4.870 secs (user 4.860+0.000 sys 0.010+0.000)
after: real 3.480 secs (user 3.440+0.000 sys 0.030+0.000)
Also, this will allow us to parse nested templates at once for better error
indication.
author | Yuya Nishihara <yuya@tcha.org> |
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date | Sat, 13 Jun 2015 19:49:54 +0900 |
parents | a387b0390082 |
children | 75be14993fda |
rev | line source |
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1 |
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2 $ cat > writepatterns.py <<EOF |
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3 > import sys |
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4 > |
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5 > path = sys.argv[1] |
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6 > patterns = sys.argv[2:] |
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7 > |
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8 > fp = file(path, 'wb') |
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9 > for pattern in patterns: |
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10 > count = int(pattern[0:-1]) |
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11 > char = pattern[-1] + '\n' |
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12 > fp.write(char*count) |
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13 > fp.close() |
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14 > EOF |
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15 |
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16 prepare repo |
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17 |
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18 $ hg init a |
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19 $ cd a |
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20 |
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21 These initial lines of Xs were not in the original file used to generate |
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22 the patch. So all the patch hunks need to be applied to a constant offset |
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23 within this file. If the offset isn't tracked then the hunks can be |
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24 applied to the wrong lines of this file. |
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25 |
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26 $ python ../writepatterns.py a 34X 10A 1B 10A 1C 10A 1B 10A 1D 10A 1B 10A 1E 10A 1B 10A |
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27 $ hg commit -Am adda |
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28 adding a |
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29 |
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30 This is a cleaner patch generated via diff |
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31 In this case it reproduces the problem when |
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32 the output of hg export does not |
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33 import patch |
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34 |
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35 $ hg import -v -m 'b' -d '2 0' - <<EOF |
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36 > --- a/a 2009-12-08 19:26:17.000000000 -0800 |
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37 > +++ b/a 2009-12-08 19:26:17.000000000 -0800 |
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38 > @@ -9,7 +9,7 @@ |
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39 > A |
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40 > A |
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41 > B |
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42 > -A |
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43 > +a |
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44 > A |
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45 > A |
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46 > A |
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47 > @@ -53,7 +53,7 @@ |
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48 > A |
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49 > A |
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50 > B |
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51 > -A |
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52 > +a |
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53 > A |
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54 > A |
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55 > A |
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56 > @@ -75,7 +75,7 @@ |
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57 > A |
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58 > A |
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59 > B |
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60 > -A |
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61 > +a |
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62 > A |
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63 > A |
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64 > A |
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65 > EOF |
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66 applying patch from stdin |
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67 patching file a |
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68 Hunk #1 succeeded at 43 (offset 34 lines). |
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69 Hunk #2 succeeded at 87 (offset 34 lines). |
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70 Hunk #3 succeeded at 109 (offset 34 lines). |
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71 committing files: |
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72 a |
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73 committing manifest |
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74 committing changelog |
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75 created 189885cecb41 |
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76 |
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77 compare imported changes against reference file |
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78 |
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79 $ python ../writepatterns.py aref 34X 10A 1B 1a 9A 1C 10A 1B 10A 1D 10A 1B 1a 9A 1E 10A 1B 1a 9A |
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80 $ diff aref a |
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81 |
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82 $ cd .. |