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@@ -1,83 +1,131 b'' | |||
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1 | 1 | # ancestor.py - generic DAG ancestor algorithm for mercurial |
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2 | 2 | # |
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3 | 3 | # Copyright 2006 Matt Mackall <mpm@selenic.com> |
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4 | 4 | # |
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5 | 5 | # This software may be used and distributed according to the terms |
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6 | 6 | # of the GNU General Public License, incorporated herein by reference. |
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7 | 7 | |
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8 | 8 | import heapq |
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9 | 9 | |
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10 | 10 | def ancestor(a, b, pfunc): |
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11 | 11 | """ |
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12 | 12 | return the least common ancestor of nodes a and b or None if there |
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13 | 13 | is no such ancestor. |
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14 | 14 | |
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15 | 15 | pfunc must return a list of parent vertices |
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16 | 16 | """ |
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17 | 17 | |
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18 | 18 | if a == b: |
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19 | 19 | return a |
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20 | 20 | |
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21 | 21 | # find depth from root of all ancestors |
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22 | 22 | visit = [a, b] |
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23 | 23 | depth = {} |
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24 | 24 | while visit: |
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25 | 25 | vertex = visit[-1] |
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26 | 26 | pl = pfunc(vertex) |
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27 | 27 | if not pl: |
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28 | 28 | depth[vertex] = 0 |
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29 | 29 | visit.pop() |
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30 | 30 | else: |
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31 | 31 | for p in pl: |
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32 | 32 | if p == a or p == b: # did we find a or b as a parent? |
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33 | 33 | return p # we're done |
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34 | 34 | if p not in depth: |
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35 | 35 | visit.append(p) |
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36 | 36 | if visit[-1] == vertex: |
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37 | 37 | depth[vertex] = min([depth[p] for p in pl]) - 1 |
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38 | 38 | visit.pop() |
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39 | 39 | |
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40 | 40 | # traverse ancestors in order of decreasing distance from root |
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41 | 41 | def ancestors(vertex): |
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42 | 42 | h = [(depth[vertex], vertex)] |
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43 | 43 | seen = {} |
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44 | 44 | while h: |
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45 | 45 | d, n = heapq.heappop(h) |
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46 | 46 | if n not in seen: |
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47 | 47 | seen[n] = 1 |
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48 | 48 | yield (d, n) |
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49 | 49 | for p in pfunc(n): |
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50 | 50 | heapq.heappush(h, (depth[p], p)) |
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51 | 51 | |
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52 | 52 | def generations(vertex): |
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53 | 53 | sg, s = None, {} |
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54 | 54 | for g, v in ancestors(vertex): |
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55 | 55 | if g != sg: |
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56 | 56 | if sg: |
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57 | 57 | yield sg, s |
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58 | 58 | sg, s = g, {v:1} |
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59 | 59 | else: |
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60 | 60 | s[v] = 1 |
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61 | 61 | yield sg, s |
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62 | 62 | |
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63 | 63 | x = generations(a) |
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64 | 64 | y = generations(b) |
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65 | 65 | gx = x.next() |
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66 | 66 | gy = y.next() |
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67 | 67 | |
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68 | 68 | # increment each ancestor list until it is closer to root than |
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69 | 69 | # the other, or they match |
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70 | 70 | try: |
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71 | 71 | while 1: |
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72 | 72 | if gx[0] == gy[0]: |
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73 | 73 | for v in gx[1]: |
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74 | 74 | if v in gy[1]: |
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75 | 75 | return v |
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76 | 76 | gy = y.next() |
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77 | 77 | gx = x.next() |
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78 | 78 | elif gx[0] > gy[0]: |
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79 | 79 | gy = y.next() |
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80 | 80 | else: |
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81 | 81 | gx = x.next() |
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82 | 82 | except StopIteration: |
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83 | 83 | return None |
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84 | ||
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85 | def symmetricdifference(a, b, pfunc): | |
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86 | """symmetric difference of the sets of ancestors of a and b | |
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87 | ||
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88 | I.e. revisions that are ancestors of a or b, but not both. | |
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89 | """ | |
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90 | # basic idea: | |
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91 | # - mark a and b with different colors | |
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92 | # - walk the graph in topological order with the help of a heap; | |
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93 | # for each revision r: | |
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94 | # - if r has only one color, we want to return it | |
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95 | # - add colors[r] to its parents | |
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96 | # | |
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97 | # We keep track of the number of revisions in the heap that | |
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98 | # we may be interested in. We stop walking the graph as soon | |
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99 | # as this number reaches 0. | |
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100 | WHITE = 1 | |
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101 | BLACK = 2 | |
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102 | ALLCOLORS = WHITE | BLACK | |
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103 | colors = {a: WHITE, b: BLACK} | |
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104 | ||
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105 | visit = [-a, -b] | |
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106 | heapq.heapify(visit) | |
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107 | n_wanted = len(visit) | |
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108 | ret = [] | |
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109 | ||
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110 | while n_wanted: | |
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111 | r = -heapq.heappop(visit) | |
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112 | wanted = colors[r] != ALLCOLORS | |
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113 | n_wanted -= wanted | |
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114 | if wanted: | |
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115 | ret.append(r) | |
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116 | ||
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117 | for p in pfunc(r): | |
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118 | if p not in colors: | |
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119 | # first time we see p; add it to visit | |
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120 | n_wanted += wanted | |
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121 | colors[p] = colors[r] | |
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122 | heapq.heappush(visit, -p) | |
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123 | elif colors[p] != ALLCOLORS and colors[p] != colors[r]: | |
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124 | # at first we thought we wanted p, but now | |
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125 | # we know we don't really want it | |
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126 | n_wanted -= 1 | |
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127 | colors[p] |= colors[r] | |
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128 | ||
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129 | del colors[r] | |
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130 | ||
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131 | return ret |
@@ -1,633 +1,584 b'' | |||
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1 | 1 | # merge.py - directory-level update/merge handling for Mercurial |
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2 | 2 | # |
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3 | 3 | # Copyright 2006, 2007 Matt Mackall <mpm@selenic.com> |
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4 | 4 | # |
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5 | 5 | # This software may be used and distributed according to the terms |
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6 | 6 | # of the GNU General Public License, incorporated herein by reference. |
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7 | 7 | |
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8 | 8 | from node import nullid, nullrev |
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9 | 9 | from i18n import _ |
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10 | import errno, util, os, heapq, filemerge | |
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10 | import errno, util, os, heapq, filemerge, ancestor | |
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11 | 11 | |
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12 | 12 | def _checkunknown(wctx, mctx): |
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13 | 13 | "check for collisions between unknown files and files in mctx" |
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14 | 14 | for f in wctx.unknown(): |
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15 | 15 | if f in mctx and mctx[f].cmp(wctx[f].data()): |
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16 | 16 | raise util.Abort(_("untracked file in working directory differs" |
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17 | 17 | " from file in requested revision: '%s'") % f) |
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18 | 18 | |
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19 | 19 | def _checkcollision(mctx): |
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20 | 20 | "check for case folding collisions in the destination context" |
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21 | 21 | folded = {} |
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22 | 22 | for fn in mctx: |
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23 | 23 | fold = fn.lower() |
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24 | 24 | if fold in folded: |
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25 | 25 | raise util.Abort(_("case-folding collision between %s and %s") |
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26 | 26 | % (fn, folded[fold])) |
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27 | 27 | folded[fold] = fn |
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28 | 28 | |
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29 | 29 | def _forgetremoved(wctx, mctx, branchmerge): |
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30 | 30 | """ |
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31 | 31 | Forget removed files |
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32 | 32 | |
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33 | 33 | If we're jumping between revisions (as opposed to merging), and if |
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34 | 34 | neither the working directory nor the target rev has the file, |
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35 | 35 | then we need to remove it from the dirstate, to prevent the |
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36 | 36 | dirstate from listing the file when it is no longer in the |
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37 | 37 | manifest. |
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38 | 38 | |
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39 | 39 | If we're merging, and the other revision has removed a file |
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40 | 40 | that is not present in the working directory, we need to mark it |
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41 | 41 | as removed. |
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42 | 42 | """ |
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43 | 43 | |
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44 | 44 | action = [] |
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45 | 45 | state = branchmerge and 'r' or 'f' |
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46 | 46 | for f in wctx.deleted(): |
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47 | 47 | if f not in mctx: |
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48 | 48 | action.append((f, state)) |
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49 | 49 | |
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50 | 50 | if not branchmerge: |
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51 | 51 | for f in wctx.removed(): |
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52 | 52 | if f not in mctx: |
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53 | 53 | action.append((f, "f")) |
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54 | 54 | |
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55 | 55 | return action |
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56 | 56 | |
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57 | 57 | def _nonoverlap(d1, d2, d3): |
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58 | 58 | "Return list of elements in d1 not in d2 or d3" |
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59 | 59 | l = [d for d in d1 if d not in d3 and d not in d2] |
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60 | 60 | l.sort() |
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61 | 61 | return l |
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62 | 62 | |
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63 | 63 | def _dirname(f): |
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64 | 64 | s = f.rfind("/") |
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65 | 65 | if s == -1: |
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66 | 66 | return "" |
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67 | 67 | return f[:s] |
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68 | 68 | |
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69 | 69 | def _dirs(files): |
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70 | 70 | d = {} |
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71 | 71 | for f in files: |
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72 | 72 | f = _dirname(f) |
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73 | 73 | while f not in d: |
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74 | 74 | d[f] = True |
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75 | 75 | f = _dirname(f) |
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76 | 76 | return d |
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77 | 77 | |
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78 | 78 | def _findoldnames(fctx, limit): |
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79 | 79 | "find files that path was copied from, back to linkrev limit" |
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80 | 80 | old = {} |
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81 | 81 | seen = {} |
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82 | 82 | orig = fctx.path() |
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83 | 83 | visit = [fctx] |
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84 | 84 | while visit: |
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85 | 85 | fc = visit.pop() |
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86 | 86 | s = str(fc) |
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87 | 87 | if s in seen: |
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88 | 88 | continue |
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89 | 89 | seen[s] = 1 |
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90 | 90 | if fc.path() != orig and fc.path() not in old: |
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91 | 91 | old[fc.path()] = 1 |
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92 | 92 | if fc.rev() < limit: |
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93 | 93 | continue |
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94 | 94 | visit += fc.parents() |
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95 | 95 | |
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96 | 96 | old = old.keys() |
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97 | 97 | old.sort() |
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98 | 98 | return old |
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99 | 99 | |
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100 | 100 | def findcopies(repo, m1, m2, ma, limit): |
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101 | 101 | """ |
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102 | 102 | Find moves and copies between m1 and m2 back to limit linkrev |
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103 | 103 | """ |
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104 | 104 | |
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105 | 105 | wctx = repo.workingctx() |
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106 | 106 | |
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107 | 107 | def makectx(f, n): |
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108 | 108 | if len(n) == 20: |
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109 | 109 | return repo.filectx(f, fileid=n) |
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110 | 110 | return wctx.filectx(f) |
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111 | 111 | ctx = util.cachefunc(makectx) |
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112 | 112 | |
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113 | 113 | copy = {} |
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114 | 114 | fullcopy = {} |
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115 | 115 | diverge = {} |
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116 | 116 | |
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117 | 117 | def checkcopies(f, m1, m2): |
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118 | 118 | '''check possible copies of f from m1 to m2''' |
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119 | 119 | c1 = ctx(f, m1[f]) |
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120 | 120 | for of in _findoldnames(c1, limit): |
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121 | 121 | fullcopy[f] = of # remember for dir rename detection |
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122 | 122 | if of in m2: # original file not in other manifest? |
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123 | 123 | # if the original file is unchanged on the other branch, |
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124 | 124 | # no merge needed |
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125 | 125 | if m2[of] != ma.get(of): |
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126 | 126 | c2 = ctx(of, m2[of]) |
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127 | 127 | ca = c1.ancestor(c2) |
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128 | 128 | # related and named changed on only one side? |
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129 | 129 | if ca and ca.path() == f or ca.path() == c2.path(): |
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130 | 130 | if c1 != ca or c2 != ca: # merge needed? |
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131 | 131 | copy[f] = of |
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132 | 132 | elif of in ma: |
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133 | 133 | diverge.setdefault(of, []).append(f) |
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134 | 134 | |
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135 | 135 | if not repo.ui.configbool("merge", "followcopies", True): |
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136 | 136 | return {}, {} |
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137 | 137 | |
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138 | 138 | # avoid silly behavior for update from empty dir |
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139 | 139 | if not m1 or not m2 or not ma: |
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140 | 140 | return {}, {} |
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141 | 141 | |
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142 | 142 | repo.ui.debug(_(" searching for copies back to rev %d\n") % limit) |
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143 | 143 | |
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144 | 144 | u1 = _nonoverlap(m1, m2, ma) |
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145 | 145 | u2 = _nonoverlap(m2, m1, ma) |
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146 | 146 | |
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147 | 147 | if u1: |
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148 | 148 | repo.ui.debug(_(" unmatched files in local:\n %s\n") |
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149 | 149 | % "\n ".join(u1)) |
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150 | 150 | if u2: |
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151 | 151 | repo.ui.debug(_(" unmatched files in other:\n %s\n") |
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152 | 152 | % "\n ".join(u2)) |
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153 | 153 | |
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154 | 154 | for f in u1: |
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155 | 155 | checkcopies(f, m1, m2) |
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156 | 156 | |
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157 | 157 | for f in u2: |
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158 | 158 | checkcopies(f, m2, m1) |
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159 | 159 | |
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160 | 160 | diverge2 = {} |
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161 | 161 | for of, fl in diverge.items(): |
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162 | 162 | if len(fl) == 1: |
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163 | 163 | del diverge[of] # not actually divergent |
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164 | 164 | else: |
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165 | 165 | diverge2.update(dict.fromkeys(fl)) # reverse map for below |
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166 | 166 | |
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167 | 167 | if fullcopy: |
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168 | 168 | repo.ui.debug(_(" all copies found (* = to merge, ! = divergent):\n")) |
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169 | 169 | for f in fullcopy: |
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170 | 170 | note = "" |
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171 | 171 | if f in copy: note += "*" |
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172 | 172 | if f in diverge2: note += "!" |
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173 | 173 | repo.ui.debug(_(" %s -> %s %s\n") % (f, fullcopy[f], note)) |
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174 | 174 | |
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175 | 175 | del diverge2 |
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176 | 176 | |
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177 | 177 | if not fullcopy or not repo.ui.configbool("merge", "followdirs", True): |
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178 | 178 | return copy, diverge |
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179 | 179 | |
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180 | 180 | repo.ui.debug(_(" checking for directory renames\n")) |
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181 | 181 | |
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182 | 182 | # generate a directory move map |
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183 | 183 | d1, d2 = _dirs(m1), _dirs(m2) |
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184 | 184 | invalid = {} |
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185 | 185 | dirmove = {} |
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186 | 186 | |
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187 | 187 | # examine each file copy for a potential directory move, which is |
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188 | 188 | # when all the files in a directory are moved to a new directory |
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189 | 189 | for dst, src in fullcopy.items(): |
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190 | 190 | dsrc, ddst = _dirname(src), _dirname(dst) |
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191 | 191 | if dsrc in invalid: |
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192 | 192 | # already seen to be uninteresting |
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193 | 193 | continue |
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194 | 194 | elif dsrc in d1 and ddst in d1: |
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195 | 195 | # directory wasn't entirely moved locally |
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196 | 196 | invalid[dsrc] = True |
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197 | 197 | elif dsrc in d2 and ddst in d2: |
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198 | 198 | # directory wasn't entirely moved remotely |
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199 | 199 | invalid[dsrc] = True |
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200 | 200 | elif dsrc in dirmove and dirmove[dsrc] != ddst: |
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201 | 201 | # files from the same directory moved to two different places |
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202 | 202 | invalid[dsrc] = True |
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203 | 203 | else: |
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204 | 204 | # looks good so far |
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205 | 205 | dirmove[dsrc + "/"] = ddst + "/" |
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206 | 206 | |
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207 | 207 | for i in invalid: |
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208 | 208 | if i in dirmove: |
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209 | 209 | del dirmove[i] |
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210 | 210 | |
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211 | 211 | del d1, d2, invalid |
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212 | 212 | |
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213 | 213 | if not dirmove: |
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214 | 214 | return copy, diverge |
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215 | 215 | |
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216 | 216 | for d in dirmove: |
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217 | 217 | repo.ui.debug(_(" dir %s -> %s\n") % (d, dirmove[d])) |
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218 | 218 | |
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219 | 219 | # check unaccounted nonoverlapping files against directory moves |
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220 | 220 | for f in u1 + u2: |
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221 | 221 | if f not in fullcopy: |
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222 | 222 | for d in dirmove: |
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223 | 223 | if f.startswith(d): |
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224 | 224 | # new file added in a directory that was moved, move it |
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225 | 225 | copy[f] = dirmove[d] + f[len(d):] |
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226 | 226 | repo.ui.debug(_(" file %s -> %s\n") % (f, copy[f])) |
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227 | 227 | break |
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228 | 228 | |
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229 | 229 | return copy, diverge |
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230 | 230 | |
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231 | def _symmetricdifference(repo, rev1, rev2): | |
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232 | """symmetric difference of the sets of ancestors of rev1 and rev2 | |
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233 | ||
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234 | I.e. revisions that are ancestors of rev1 or rev2, but not both. | |
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235 | """ | |
|
236 | # basic idea: | |
|
237 | # - mark rev1 and rev2 with different colors | |
|
238 | # - walk the graph in topological order with the help of a heap; | |
|
239 | # for each revision r: | |
|
240 | # - if r has only one color, we want to return it | |
|
241 | # - add colors[r] to its parents | |
|
242 | # | |
|
243 | # We keep track of the number of revisions in the heap that | |
|
244 | # we may be interested in. We stop walking the graph as soon | |
|
245 | # as this number reaches 0. | |
|
246 | WHITE = 1 | |
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247 | BLACK = 2 | |
|
248 | ALLCOLORS = WHITE | BLACK | |
|
249 | colors = {rev1: WHITE, rev2: BLACK} | |
|
250 | ||
|
251 | cl = repo.changelog | |
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252 | ||
|
253 | visit = [-rev1, -rev2] | |
|
254 | heapq.heapify(visit) | |
|
255 | n_wanted = len(visit) | |
|
256 | ret = [] | |
|
257 | ||
|
258 | while n_wanted: | |
|
259 | r = -heapq.heappop(visit) | |
|
260 | wanted = colors[r] != ALLCOLORS | |
|
261 | n_wanted -= wanted | |
|
262 | if wanted: | |
|
263 | ret.append(r) | |
|
264 | ||
|
265 | for p in cl.parentrevs(r): | |
|
266 | if p == nullrev: | |
|
267 | continue | |
|
268 | if p not in colors: | |
|
269 | # first time we see p; add it to visit | |
|
270 | n_wanted += wanted | |
|
271 | colors[p] = colors[r] | |
|
272 | heapq.heappush(visit, -p) | |
|
273 | elif colors[p] != ALLCOLORS and colors[p] != colors[r]: | |
|
274 | # at first we thought we wanted p, but now | |
|
275 | # we know we don't really want it | |
|
276 | n_wanted -= 1 | |
|
277 | colors[p] |= colors[r] | |
|
278 | ||
|
279 | del colors[r] | |
|
280 | ||
|
281 | return ret | |
|
282 | ||
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283 | 231 | def manifestmerge(repo, p1, p2, pa, overwrite, partial): |
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284 | 232 | """ |
|
285 | 233 | Merge p1 and p2 with ancestor ma and generate merge action list |
|
286 | 234 | |
|
287 | 235 | overwrite = whether we clobber working files |
|
288 | 236 | partial = function to filter file lists |
|
289 | 237 | """ |
|
290 | 238 | |
|
291 | 239 | repo.ui.note(_("resolving manifests\n")) |
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292 | 240 | repo.ui.debug(_(" overwrite %s partial %s\n") % (overwrite, bool(partial))) |
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293 | 241 | repo.ui.debug(_(" ancestor %s local %s remote %s\n") % (pa, p1, p2)) |
|
294 | 242 | |
|
295 | 243 | m1 = p1.manifest() |
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296 | 244 | m2 = p2.manifest() |
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297 | 245 | ma = pa.manifest() |
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298 | 246 | backwards = (pa == p2) |
|
299 | 247 | action = [] |
|
300 | 248 | copy = {} |
|
301 | 249 | diverge = {} |
|
302 | 250 | |
|
303 | 251 | def fmerge(f, f2=None, fa=None): |
|
304 | 252 | """merge flags""" |
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305 | 253 | if not f2: |
|
306 | 254 | f2 = f |
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307 | 255 | fa = f |
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308 | 256 | a, m, n = ma.flags(fa), m1.flags(f), m2.flags(f2) |
|
309 | 257 | if m == n: # flags agree |
|
310 | 258 | return m # unchanged |
|
311 | 259 | if m and n: # flags are set but don't agree |
|
312 | 260 | if not a: # both differ from parent |
|
313 | 261 | r = repo.ui.prompt( |
|
314 | 262 | _(" conflicting flags for %s\n" |
|
315 | 263 | "(n)one, e(x)ec or sym(l)ink?") % f, "[nxl]", "n") |
|
316 | 264 | return r != "n" and r or '' |
|
317 | 265 | if m == a: |
|
318 | 266 | return n # changed from m to n |
|
319 | 267 | return m # changed from n to m |
|
320 | 268 | if m and m != a: # changed from a to m |
|
321 | 269 | return m |
|
322 | 270 | if n and n != a: # changed from a to n |
|
323 | 271 | return n |
|
324 | 272 | return '' # flag was cleared |
|
325 | 273 | |
|
326 | 274 | def act(msg, m, f, *args): |
|
327 | 275 | repo.ui.debug(" %s: %s -> %s\n" % (f, msg, m)) |
|
328 | 276 | action.append((f, m) + args) |
|
329 | 277 | |
|
330 | 278 | if not (backwards or overwrite): |
|
331 | 279 | rev1 = p1.rev() |
|
332 | 280 | if rev1 is None: |
|
333 | 281 | # p1 is a workingctx |
|
334 | 282 | rev1 = p1.parents()[0].rev() |
|
335 | limit = min(_symmetricdifference(repo, rev1, p2.rev())) | |
|
283 | pr = repo.changelog.parentrevs | |
|
284 | def parents(rev): | |
|
285 | return [p for p in pr(rev) if p != nullrev] | |
|
286 | limit = min(ancestor.symmetricdifference(rev1, p2.rev(), parents)) | |
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336 | 287 | copy, diverge = findcopies(repo, m1, m2, ma, limit) |
|
337 | 288 | |
|
338 | 289 | for of, fl in diverge.items(): |
|
339 | 290 | act("divergent renames", "dr", of, fl) |
|
340 | 291 | |
|
341 | 292 | copied = dict.fromkeys(copy.values()) |
|
342 | 293 | |
|
343 | 294 | # Compare manifests |
|
344 | 295 | for f, n in m1.iteritems(): |
|
345 | 296 | if partial and not partial(f): |
|
346 | 297 | continue |
|
347 | 298 | if f in m2: |
|
348 | 299 | if overwrite or backwards: |
|
349 | 300 | rflags = m2.flags(f) |
|
350 | 301 | else: |
|
351 | 302 | rflags = fmerge(f) |
|
352 | 303 | # are files different? |
|
353 | 304 | if n != m2[f]: |
|
354 | 305 | a = ma.get(f, nullid) |
|
355 | 306 | # are we clobbering? |
|
356 | 307 | if overwrite: |
|
357 | 308 | act("clobbering", "g", f, rflags) |
|
358 | 309 | # or are we going back in time and clean? |
|
359 | 310 | elif backwards and not n[20:]: |
|
360 | 311 | act("reverting", "g", f, rflags) |
|
361 | 312 | # are both different from the ancestor? |
|
362 | 313 | elif n != a and m2[f] != a: |
|
363 | 314 | act("versions differ", "m", f, f, f, rflags, False) |
|
364 | 315 | # is remote's version newer? |
|
365 | 316 | elif m2[f] != a: |
|
366 | 317 | act("remote is newer", "g", f, rflags) |
|
367 | 318 | # local is newer, not overwrite, check mode bits |
|
368 | 319 | elif m1.flags(f) != rflags: |
|
369 | 320 | act("update permissions", "e", f, rflags) |
|
370 | 321 | # contents same, check mode bits |
|
371 | 322 | elif m1.flags(f) != rflags: |
|
372 | 323 | act("update permissions", "e", f, rflags) |
|
373 | 324 | elif f in copied: |
|
374 | 325 | continue |
|
375 | 326 | elif f in copy: |
|
376 | 327 | f2 = copy[f] |
|
377 | 328 | if f2 not in m2: # directory rename |
|
378 | 329 | act("remote renamed directory to " + f2, "d", |
|
379 | 330 | f, None, f2, m1.flags(f)) |
|
380 | 331 | elif f2 in m1: # case 2 A,B/B/B |
|
381 | 332 | act("local copied to " + f2, "m", |
|
382 | 333 | f, f2, f, fmerge(f, f2, f2), False) |
|
383 | 334 | else: # case 4,21 A/B/B |
|
384 | 335 | act("local moved to " + f2, "m", |
|
385 | 336 | f, f2, f, fmerge(f, f2, f2), False) |
|
386 | 337 | elif f in ma: |
|
387 | 338 | if n != ma[f] and not overwrite: |
|
388 | 339 | if repo.ui.prompt( |
|
389 | 340 | _(" local changed %s which remote deleted\n" |
|
390 | 341 | "use (c)hanged version or (d)elete?") % f, |
|
391 | 342 | _("[cd]"), _("c")) == _("d"): |
|
392 | 343 | act("prompt delete", "r", f) |
|
393 | 344 | else: |
|
394 | 345 | act("other deleted", "r", f) |
|
395 | 346 | else: |
|
396 | 347 | # file is created on branch or in working directory |
|
397 | 348 | if (overwrite and n[20:] != "u") or (backwards and not n[20:]): |
|
398 | 349 | act("remote deleted", "r", f) |
|
399 | 350 | |
|
400 | 351 | for f, n in m2.iteritems(): |
|
401 | 352 | if partial and not partial(f): |
|
402 | 353 | continue |
|
403 | 354 | if f in m1: |
|
404 | 355 | continue |
|
405 | 356 | if f in copied: |
|
406 | 357 | continue |
|
407 | 358 | if f in copy: |
|
408 | 359 | f2 = copy[f] |
|
409 | 360 | if f2 not in m1: # directory rename |
|
410 | 361 | act("local renamed directory to " + f2, "d", |
|
411 | 362 | None, f, f2, m2.flags(f)) |
|
412 | 363 | elif f2 in m2: # rename case 1, A/A,B/A |
|
413 | 364 | act("remote copied to " + f, "m", |
|
414 | 365 | f2, f, f, fmerge(f2, f, f2), False) |
|
415 | 366 | else: # case 3,20 A/B/A |
|
416 | 367 | act("remote moved to " + f, "m", |
|
417 | 368 | f2, f, f, fmerge(f2, f, f2), True) |
|
418 | 369 | elif f in ma: |
|
419 | 370 | if overwrite or backwards: |
|
420 | 371 | act("recreating", "g", f, m2.flags(f)) |
|
421 | 372 | elif n != ma[f]: |
|
422 | 373 | if repo.ui.prompt( |
|
423 | 374 | _("remote changed %s which local deleted\n" |
|
424 | 375 | "use (c)hanged version or leave (d)eleted?") % f, |
|
425 | 376 | _("[cd]"), _("c")) == _("c"): |
|
426 | 377 | act("prompt recreating", "g", f, m2.flags(f)) |
|
427 | 378 | else: |
|
428 | 379 | act("remote created", "g", f, m2.flags(f)) |
|
429 | 380 | |
|
430 | 381 | return action |
|
431 | 382 | |
|
432 | 383 | def applyupdates(repo, action, wctx, mctx): |
|
433 | 384 | "apply the merge action list to the working directory" |
|
434 | 385 | |
|
435 | 386 | updated, merged, removed, unresolved = 0, 0, 0, 0 |
|
436 | 387 | action.sort() |
|
437 | 388 | # prescan for copy/renames |
|
438 | 389 | for a in action: |
|
439 | 390 | f, m = a[:2] |
|
440 | 391 | if m == 'm': # merge |
|
441 | 392 | f2, fd, flags, move = a[2:] |
|
442 | 393 | if f != fd: |
|
443 | 394 | repo.ui.debug(_("copying %s to %s\n") % (f, fd)) |
|
444 | 395 | repo.wwrite(fd, repo.wread(f), flags) |
|
445 | 396 | |
|
446 | 397 | audit_path = util.path_auditor(repo.root) |
|
447 | 398 | |
|
448 | 399 | for a in action: |
|
449 | 400 | f, m = a[:2] |
|
450 | 401 | if f and f[0] == "/": |
|
451 | 402 | continue |
|
452 | 403 | if m == "r": # remove |
|
453 | 404 | repo.ui.note(_("removing %s\n") % f) |
|
454 | 405 | audit_path(f) |
|
455 | 406 | try: |
|
456 | 407 | util.unlink(repo.wjoin(f)) |
|
457 | 408 | except OSError, inst: |
|
458 | 409 | if inst.errno != errno.ENOENT: |
|
459 | 410 | repo.ui.warn(_("update failed to remove %s: %s!\n") % |
|
460 | 411 | (f, inst.strerror)) |
|
461 | 412 | removed += 1 |
|
462 | 413 | elif m == "m": # merge |
|
463 | 414 | f2, fd, flags, move = a[2:] |
|
464 | 415 | r = filemerge.filemerge(repo, f, fd, f2, wctx, mctx) |
|
465 | 416 | if r > 0: |
|
466 | 417 | unresolved += 1 |
|
467 | 418 | else: |
|
468 | 419 | if r is None: |
|
469 | 420 | updated += 1 |
|
470 | 421 | else: |
|
471 | 422 | merged += 1 |
|
472 | 423 | util.set_flags(repo.wjoin(fd), flags) |
|
473 | 424 | if f != fd and move and util.lexists(repo.wjoin(f)): |
|
474 | 425 | repo.ui.debug(_("removing %s\n") % f) |
|
475 | 426 | os.unlink(repo.wjoin(f)) |
|
476 | 427 | elif m == "g": # get |
|
477 | 428 | flags = a[2] |
|
478 | 429 | repo.ui.note(_("getting %s\n") % f) |
|
479 | 430 | t = mctx.filectx(f).data() |
|
480 | 431 | repo.wwrite(f, t, flags) |
|
481 | 432 | updated += 1 |
|
482 | 433 | elif m == "d": # directory rename |
|
483 | 434 | f2, fd, flags = a[2:] |
|
484 | 435 | if f: |
|
485 | 436 | repo.ui.note(_("moving %s to %s\n") % (f, fd)) |
|
486 | 437 | t = wctx.filectx(f).data() |
|
487 | 438 | repo.wwrite(fd, t, flags) |
|
488 | 439 | util.unlink(repo.wjoin(f)) |
|
489 | 440 | if f2: |
|
490 | 441 | repo.ui.note(_("getting %s to %s\n") % (f2, fd)) |
|
491 | 442 | t = mctx.filectx(f2).data() |
|
492 | 443 | repo.wwrite(fd, t, flags) |
|
493 | 444 | updated += 1 |
|
494 | 445 | elif m == "dr": # divergent renames |
|
495 | 446 | fl = a[2] |
|
496 | 447 | repo.ui.warn("warning: detected divergent renames of %s to:\n" % f) |
|
497 | 448 | for nf in fl: |
|
498 | 449 | repo.ui.warn(" %s\n" % nf) |
|
499 | 450 | elif m == "e": # exec |
|
500 | 451 | flags = a[2] |
|
501 | 452 | util.set_flags(repo.wjoin(f), flags) |
|
502 | 453 | |
|
503 | 454 | return updated, merged, removed, unresolved |
|
504 | 455 | |
|
505 | 456 | def recordupdates(repo, action, branchmerge): |
|
506 | 457 | "record merge actions to the dirstate" |
|
507 | 458 | |
|
508 | 459 | for a in action: |
|
509 | 460 | f, m = a[:2] |
|
510 | 461 | if m == "r": # remove |
|
511 | 462 | if branchmerge: |
|
512 | 463 | repo.dirstate.remove(f) |
|
513 | 464 | else: |
|
514 | 465 | repo.dirstate.forget(f) |
|
515 | 466 | elif m == "f": # forget |
|
516 | 467 | repo.dirstate.forget(f) |
|
517 | 468 | elif m in "ge": # get or exec change |
|
518 | 469 | if branchmerge: |
|
519 | 470 | repo.dirstate.normaldirty(f) |
|
520 | 471 | else: |
|
521 | 472 | repo.dirstate.normal(f) |
|
522 | 473 | elif m == "m": # merge |
|
523 | 474 | f2, fd, flag, move = a[2:] |
|
524 | 475 | if branchmerge: |
|
525 | 476 | # We've done a branch merge, mark this file as merged |
|
526 | 477 | # so that we properly record the merger later |
|
527 | 478 | repo.dirstate.merge(fd) |
|
528 | 479 | if f != f2: # copy/rename |
|
529 | 480 | if move: |
|
530 | 481 | repo.dirstate.remove(f) |
|
531 | 482 | if f != fd: |
|
532 | 483 | repo.dirstate.copy(f, fd) |
|
533 | 484 | else: |
|
534 | 485 | repo.dirstate.copy(f2, fd) |
|
535 | 486 | else: |
|
536 | 487 | # We've update-merged a locally modified file, so |
|
537 | 488 | # we set the dirstate to emulate a normal checkout |
|
538 | 489 | # of that file some time in the past. Thus our |
|
539 | 490 | # merge will appear as a normal local file |
|
540 | 491 | # modification. |
|
541 | 492 | repo.dirstate.normallookup(fd) |
|
542 | 493 | if move: |
|
543 | 494 | repo.dirstate.forget(f) |
|
544 | 495 | elif m == "d": # directory rename |
|
545 | 496 | f2, fd, flag = a[2:] |
|
546 | 497 | if not f2 and f not in repo.dirstate: |
|
547 | 498 | # untracked file moved |
|
548 | 499 | continue |
|
549 | 500 | if branchmerge: |
|
550 | 501 | repo.dirstate.add(fd) |
|
551 | 502 | if f: |
|
552 | 503 | repo.dirstate.remove(f) |
|
553 | 504 | repo.dirstate.copy(f, fd) |
|
554 | 505 | if f2: |
|
555 | 506 | repo.dirstate.copy(f2, fd) |
|
556 | 507 | else: |
|
557 | 508 | repo.dirstate.normal(fd) |
|
558 | 509 | if f: |
|
559 | 510 | repo.dirstate.forget(f) |
|
560 | 511 | |
|
561 | 512 | def update(repo, node, branchmerge, force, partial): |
|
562 | 513 | """ |
|
563 | 514 | Perform a merge between the working directory and the given node |
|
564 | 515 | |
|
565 | 516 | branchmerge = whether to merge between branches |
|
566 | 517 | force = whether to force branch merging or file overwriting |
|
567 | 518 | partial = a function to filter file lists (dirstate not updated) |
|
568 | 519 | """ |
|
569 | 520 | |
|
570 | 521 | wlock = repo.wlock() |
|
571 | 522 | try: |
|
572 | 523 | wc = repo.workingctx() |
|
573 | 524 | if node is None: |
|
574 | 525 | # tip of current branch |
|
575 | 526 | try: |
|
576 | 527 | node = repo.branchtags()[wc.branch()] |
|
577 | 528 | except KeyError: |
|
578 | 529 | if wc.branch() == "default": # no default branch! |
|
579 | 530 | node = repo.lookup("tip") # update to tip |
|
580 | 531 | else: |
|
581 | 532 | raise util.Abort(_("branch %s not found") % wc.branch()) |
|
582 | 533 | overwrite = force and not branchmerge |
|
583 | 534 | forcemerge = force and branchmerge |
|
584 | 535 | pl = wc.parents() |
|
585 | 536 | p1, p2 = pl[0], repo.changectx(node) |
|
586 | 537 | pa = p1.ancestor(p2) |
|
587 | 538 | fp1, fp2, xp1, xp2 = p1.node(), p2.node(), str(p1), str(p2) |
|
588 | 539 | fastforward = False |
|
589 | 540 | |
|
590 | 541 | ### check phase |
|
591 | 542 | if not overwrite and len(pl) > 1: |
|
592 | 543 | raise util.Abort(_("outstanding uncommitted merges")) |
|
593 | 544 | if pa == p1 or pa == p2: # is there a linear path from p1 to p2? |
|
594 | 545 | if branchmerge: |
|
595 | 546 | if p1.branch() != p2.branch() and pa != p2: |
|
596 | 547 | fastforward = True |
|
597 | 548 | else: |
|
598 | 549 | raise util.Abort(_("there is nothing to merge, just use " |
|
599 | 550 | "'hg update' or look at 'hg heads'")) |
|
600 | 551 | elif not (overwrite or branchmerge): |
|
601 | 552 | raise util.Abort(_("update spans branches, use 'hg merge' " |
|
602 | 553 | "or 'hg update -C' to lose changes")) |
|
603 | 554 | if branchmerge and not forcemerge: |
|
604 | 555 | if wc.files() or wc.deleted(): |
|
605 | 556 | raise util.Abort(_("outstanding uncommitted changes")) |
|
606 | 557 | |
|
607 | 558 | ### calculate phase |
|
608 | 559 | action = [] |
|
609 | 560 | if not force: |
|
610 | 561 | _checkunknown(wc, p2) |
|
611 | 562 | if not util.checkfolding(repo.path): |
|
612 | 563 | _checkcollision(p2) |
|
613 | 564 | action += _forgetremoved(wc, p2, branchmerge) |
|
614 | 565 | action += manifestmerge(repo, wc, p2, pa, overwrite, partial) |
|
615 | 566 | |
|
616 | 567 | ### apply phase |
|
617 | 568 | if not branchmerge: # just jump to the new rev |
|
618 | 569 | fp1, fp2, xp1, xp2 = fp2, nullid, xp2, '' |
|
619 | 570 | if not partial: |
|
620 | 571 | repo.hook('preupdate', throw=True, parent1=xp1, parent2=xp2) |
|
621 | 572 | |
|
622 | 573 | stats = applyupdates(repo, action, wc, p2) |
|
623 | 574 | |
|
624 | 575 | if not partial: |
|
625 | 576 | recordupdates(repo, action, branchmerge) |
|
626 | 577 | repo.dirstate.setparents(fp1, fp2) |
|
627 | 578 | if not branchmerge and not fastforward: |
|
628 | 579 | repo.dirstate.setbranch(p2.branch()) |
|
629 | 580 | repo.hook('update', parent1=xp1, parent2=xp2, error=stats[3]) |
|
630 | 581 | |
|
631 | 582 | return stats |
|
632 | 583 | finally: |
|
633 | 584 | del wlock |
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