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revisions: allow "x123" to refer to nodeid prefix "123"...
revisions: allow "x123" to refer to nodeid prefix "123" When resolving "123" to a revision, we try to interpret it as revnum before we try to interpret it as a nodeid hex prefix. This can lead to the shortest valid prefix being longer than necessary. This patch lets us write such nodeids in a shorter form by prefixing them with "x" instead of adding more hex digits until they're longer than the longest decimal revnum. On my hg repo with almost 69k revisions, turning this feature on saves on average 0.4% on the average nodeid length. That clearly doesn't justify this patch. However, it becomes more usefule when combined with the earlier patches in this series that let you disambiguate nodeid prefixes within a configured revset. Note that we attempt to resolve symbols as nodeid prefixes after we've exhausted all other posibilities, so this is a backwards compatible change (only queries that would previously fail may now succeed). I've still hidden this feature behind an experiemntal config option so we can roll it back if needed. Differential Revision: https://phab.mercurial-scm.org/D4041
Pulkit Goyal - - Load All Authors

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test-diffstat.t
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$ hg init repo
$ cd repo
$ i=0; while [ "$i" -lt 213 ]; do echo a >> a; i=`expr $i + 1`; done
$ hg add a
$ cp a b
$ hg add b
Wide diffstat:
$ hg diff --stat
a | 213 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
b | 213 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 426 insertions(+), 0 deletions(-)
diffstat width:
$ COLUMNS=24 hg diff --config ui.interactive=true --stat
a | 213 ++++++++++++++
b | 213 ++++++++++++++
2 files changed, 426 insertions(+), 0 deletions(-)
$ hg ci -m adda
$ cat >> a <<EOF
> a
> a
> a
> EOF
Narrow diffstat:
$ hg diff --stat
a | 3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
$ hg ci -m appenda
>>> open("c", "wb").write(b"\0") and None
$ touch d
$ hg add c d
Binary diffstat:
$ hg diff --stat
c | Bin
1 files changed, 0 insertions(+), 0 deletions(-)
Binary git diffstat:
$ hg diff --stat --git
c | Bin
d | 0
2 files changed, 0 insertions(+), 0 deletions(-)
$ hg ci -m createb
>>> open("file with spaces", "wb").write(b"\0") and None
$ hg add "file with spaces"
Filename with spaces diffstat:
$ hg diff --stat
file with spaces | Bin
1 files changed, 0 insertions(+), 0 deletions(-)
Filename with spaces git diffstat:
$ hg diff --stat --git
file with spaces | Bin
1 files changed, 0 insertions(+), 0 deletions(-)
Filename without "a/" or "b/" (issue5759):
$ hg diff --config 'diff.noprefix=1' -c1 --stat --git
a | 3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
$ hg diff --config 'diff.noprefix=1' -c2 --stat --git
c | Bin
d | 0
2 files changed, 0 insertions(+), 0 deletions(-)
$ hg log --config 'diff.noprefix=1' -r '1:' -p --stat --git
changeset: 1:3a95b07bb77f
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: appenda
a | 3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a a
--- a
+++ a
@@ -211,3 +211,6 @@
a
a
a
+a
+a
+a
changeset: 2:c60a6c753773
tag: tip
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: createb
c | Bin
d | 0
2 files changed, 0 insertions(+), 0 deletions(-)
diff --git c c
new file mode 100644
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..f76dd238ade08917e6712764a16a22005a50573d
GIT binary patch
literal 1
Ic${MZ000310RR91
diff --git d d
new file mode 100644
diffstat within directories:
$ hg rm -f 'file with spaces'
$ mkdir dir1 dir2
$ echo new1 > dir1/new
$ echo new2 > dir2/new
$ hg add dir1/new dir2/new
$ hg diff --stat
dir1/new | 1 +
dir2/new | 1 +
2 files changed, 2 insertions(+), 0 deletions(-)
$ hg diff --stat --root dir1
new | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)
$ hg diff --stat --root dir1 dir2
warning: dir2 not inside relative root dir1
$ hg diff --stat --root dir1 -I dir1/old
$ cd dir1
$ hg diff --stat .
dir1/new | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)
$ hg diff --stat --root .
new | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)
$ hg diff --stat --root ../dir1 ../dir2
warning: ../dir2 not inside relative root .
$ hg diff --stat --root . -I old
$ cd ..
Files with lines beginning with '--' or '++' should be properly counted in diffstat
$ hg up -Cr tip
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ rm dir1/new
$ rm dir2/new
$ rm "file with spaces"
$ cat > file << EOF
> line 1
> line 2
> line 3
> EOF
$ hg commit -Am file
adding file
Lines added starting with '--' should count as additions
$ cat > file << EOF
> line 1
> -- line 2, with dashes
> line 3
> EOF
$ hg diff --root .
diff -r be1569354b24 file
--- a/file Thu Jan 01 00:00:00 1970 +0000
+++ b/file * (glob)
@@ -1,3 +1,3 @@
line 1
-line 2
+-- line 2, with dashes
line 3
$ hg diff --root . --stat
file | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
Lines changed starting with '--' should count as deletions
$ hg commit -m filev2
$ cat > file << EOF
> line 1
> -- line 2, with dashes, changed again
> line 3
> EOF
$ hg diff --root .
diff -r 160f7c034df6 file
--- a/file Thu Jan 01 00:00:00 1970 +0000
+++ b/file * (glob)
@@ -1,3 +1,3 @@
line 1
--- line 2, with dashes
+-- line 2, with dashes, changed again
line 3
$ hg diff --root . --stat
file | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
Lines changed starting with '--' should count as deletions
and starting with '++' should count as additions
$ cat > file << EOF
> line 1
> ++ line 2, switched dashes to plusses
> line 3
> EOF
$ hg diff --root .
diff -r 160f7c034df6 file
--- a/file Thu Jan 01 00:00:00 1970 +0000
+++ b/file * (glob)
@@ -1,3 +1,3 @@
line 1
--- line 2, with dashes
+++ line 2, switched dashes to plusses
line 3
$ hg diff --root . --stat
file | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)