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show: use consistent (and possibly shorter) node lengths...
show: use consistent (and possibly shorter) node lengths `hg show` makes heavy use of shortest() to limit the length of the node hash. For the "stack" and "work" views, you are often looking at multiple lines of similar output for "lines" of work. It is visually appeasing for things to vertically align. A naive use of {shortest(node, N)} could result in variable length nodes and for the first character of the description to vary by a column or two. We implement a function to determine the longest shortest prefix for a set of revisions. The new function is used to determine the printed node length for all `hg show` views. .. feature:: show: use consistent node length in views Our previous shortest node length of 5 was arbitrarily chosen. shortest() already does the work of ensuring that a partial node isn't ambiguous with an integer revision, which is our primary risk of a collision for very short nodes. It should be safe to go with the shortest node possible. Existing code is also optimized to handle nodes as short as 4. So, we decrease the minimum hash length from 5 to 4. We also add a test demonstrating that prefix collisions increase the node length. .. feature:: show: decrease minimum displayed hash length from 5 to 4 Differential Revision: https://phab.mercurial-scm.org/D558

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r32660:9d201b39 default
r34192:e6b5e732 default
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test-export.t
246 lines | 5.7 KiB | text/troff | Tads3Lexer
$ hg init repo
$ cd repo
$ touch foo
$ hg add foo
$ for i in 0 1 2 3 4 5 6 7 8 9 10 11; do
> echo "foo-$i" >> foo
> hg ci -m "foo-$i"
> done
$ for out in "%nof%N" "%%%H" "%b-%R" "%h" "%r" "%m"; do
> echo
> echo "# foo-$out.patch"
> hg export -v -o "foo-$out.patch" 2:tip
> done
# foo-%nof%N.patch
exporting patches:
foo-01of10.patch
foo-02of10.patch
foo-03of10.patch
foo-04of10.patch
foo-05of10.patch
foo-06of10.patch
foo-07of10.patch
foo-08of10.patch
foo-09of10.patch
foo-10of10.patch
# foo-%%%H.patch
exporting patches:
foo-%617188a1c80f869a7b66c85134da88a6fb145f67.patch
foo-%dd41a5ff707a5225204105611ba49cc5c229d55f.patch
foo-%f95a5410f8664b6e1490a4af654e4b7d41a7b321.patch
foo-%4346bcfde53b4d9042489078bcfa9c3e28201db2.patch
foo-%afda8c3a009cc99449a05ad8aa4655648c4ecd34.patch
foo-%35284ce2b6b99c9d2ac66268fe99e68e1974e1aa.patch
foo-%9688c41894e6931305fa7165a37f6568050b4e9b.patch
foo-%747d3c68f8ec44bb35816bfcd59aeb50b9654c2f.patch
foo-%5f17a83f5fbd9414006a5e563eab4c8a00729efd.patch
foo-%f3acbafac161ec68f1598af38f794f28847ca5d3.patch
# foo-%b-%R.patch
exporting patches:
foo-repo-2.patch
foo-repo-3.patch
foo-repo-4.patch
foo-repo-5.patch
foo-repo-6.patch
foo-repo-7.patch
foo-repo-8.patch
foo-repo-9.patch
foo-repo-10.patch
foo-repo-11.patch
# foo-%h.patch
exporting patches:
foo-617188a1c80f.patch
foo-dd41a5ff707a.patch
foo-f95a5410f866.patch
foo-4346bcfde53b.patch
foo-afda8c3a009c.patch
foo-35284ce2b6b9.patch
foo-9688c41894e6.patch
foo-747d3c68f8ec.patch
foo-5f17a83f5fbd.patch
foo-f3acbafac161.patch
# foo-%r.patch
exporting patches:
foo-02.patch
foo-03.patch
foo-04.patch
foo-05.patch
foo-06.patch
foo-07.patch
foo-08.patch
foo-09.patch
foo-10.patch
foo-11.patch
# foo-%m.patch
exporting patches:
foo-foo_2.patch
foo-foo_3.patch
foo-foo_4.patch
foo-foo_5.patch
foo-foo_6.patch
foo-foo_7.patch
foo-foo_8.patch
foo-foo_9.patch
foo-foo_10.patch
foo-foo_11.patch
Doing it again clobbers the files rather than appending:
$ hg export -v -o "foo-%m.patch" 2:3
exporting patches:
foo-foo_2.patch
foo-foo_3.patch
$ grep HG foo-foo_2.patch | wc -l
\s*1 (re)
$ grep HG foo-foo_3.patch | wc -l
\s*1 (re)
Exporting 4 changesets to a file:
$ hg export -o export_internal 1 2 3 4
$ grep HG export_internal | wc -l
\s*4 (re)
Doing it again clobbers the file rather than appending:
$ hg export -o export_internal 1 2 3 4
$ grep HG export_internal | wc -l
\s*4 (re)
Exporting 4 changesets to stdout:
$ hg export 1 2 3 4 | grep HG | wc -l
\s*4 (re)
Exporting revision -2 to a file:
$ hg export -- -2
# HG changeset patch
# User test
# Date 0 0
# Thu Jan 01 00:00:00 1970 +0000
# Node ID 5f17a83f5fbd9414006a5e563eab4c8a00729efd
# Parent 747d3c68f8ec44bb35816bfcd59aeb50b9654c2f
foo-10
diff -r 747d3c68f8ec -r 5f17a83f5fbd foo
--- a/foo Thu Jan 01 00:00:00 1970 +0000
+++ b/foo Thu Jan 01 00:00:00 1970 +0000
@@ -8,3 +8,4 @@
foo-7
foo-8
foo-9
+foo-10
Exporting wdir revision:
$ echo "foo-wdir" >> foo
$ hg export 'wdir()'
# HG changeset patch
# User test
# Date 0 0
# Thu Jan 01 00:00:00 1970 +0000
# Node ID ffffffffffffffffffffffffffffffffffffffff
# Parent f3acbafac161ec68f1598af38f794f28847ca5d3
diff -r f3acbafac161 foo
--- a/foo Thu Jan 01 00:00:00 1970 +0000
+++ b/foo Thu Jan 01 00:00:00 1970 +0000
@@ -10,3 +10,4 @@
foo-9
foo-10
foo-11
+foo-wdir
$ hg revert -q foo
No filename should be printed if stdout is specified explicitly:
$ hg export -v 1 -o -
exporting patch:
# HG changeset patch
# User test
# Date 0 0
# Thu Jan 01 00:00:00 1970 +0000
# Node ID d1c9656e973cfb5aebd5499bbd2cb350e3b12266
# Parent 871558de6af2e8c244222f8eea69b782c94ce3df
foo-1
diff -r 871558de6af2 -r d1c9656e973c foo
--- a/foo Thu Jan 01 00:00:00 1970 +0000
+++ b/foo Thu Jan 01 00:00:00 1970 +0000
@@ -1,1 +1,2 @@
foo-0
+foo-1
Checking if only alphanumeric characters are used in the file name (%m option):
$ echo "line" >> foo
$ hg commit -m " !\"#$%&(,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]"'^'"_\`abcdefghijklmnopqrstuvwxyz{|}~"
$ hg export -v -o %m.patch tip
exporting patch:
____________0123456789_______ABCDEFGHIJKLMNOPQRSTUVWXYZ______abcdefghijklmnopqrstuvwxyz____.patch
Catch exporting unknown revisions (especially empty revsets, see issue3353)
$ hg export
# HG changeset patch
# User test
# Date 0 0
# Thu Jan 01 00:00:00 1970 +0000
# Node ID 197ecd81a57f760b54f34a58817ad5b04991fa47
# Parent f3acbafac161ec68f1598af38f794f28847ca5d3
!"#$%&(,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~
diff -r f3acbafac161 -r 197ecd81a57f foo
--- a/foo Thu Jan 01 00:00:00 1970 +0000
+++ b/foo Thu Jan 01 00:00:00 1970 +0000
@@ -10,3 +10,4 @@
foo-9
foo-10
foo-11
+line
$ hg export ""
hg: parse error: empty query
[255]
$ hg export 999
abort: unknown revision '999'!
[255]
$ hg export "not all()"
abort: export requires at least one changeset
[255]
Check for color output
$ cat <<EOF >> $HGRCPATH
> [color]
> mode = ansi
> [extensions]
> color =
> EOF
$ hg export --color always --nodates tip
# HG changeset patch
# User test
# Date 0 0
# Thu Jan 01 00:00:00 1970 +0000
# Node ID * (glob)
# Parent * (glob)
!"#$%&(,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~
\x1b[0;1mdiff -r f3acbafac161 -r 197ecd81a57f foo\x1b[0m (esc)
\x1b[0;31;1m--- a/foo\x1b[0m (esc)
\x1b[0;32;1m+++ b/foo\x1b[0m (esc)
\x1b[0;35m@@ -10,3 +10,4 @@\x1b[0m (esc)
foo-9
foo-10
foo-11
\x1b[0;32m+line\x1b[0m (esc)
$ cd ..