status: prefer relative paths in Rust code … when the repository root is under the current directory, so the kernel needs to traverse fewer directory in every call to `read_dir` or `symlink_metadata`. Better yet would be to use libc functions like `openat` and `fstatat` to remove such repeated traversals entirely, but the standard library does not provide APIs based on those. Maybe with a crate like https://crates.io/crates/openat instead? Benchmarks of `rhg status` show that this patch is neutral in some configurations, and makes the command up to ~20% faster in others. Below is semi-arbitrary subset of results. The four numeric columns are: time (in seconds) with this changeset’s parent, time with this changeset, time difference (negative is better), time ratio (less than 1 is better). ``` mercurial-dirstate-v1 | default-plain-clean.no-iu.pbr | 0.0061 -> 0.0059: -0.0002 (0.97) mercurial-dirstate-v2 | default-plain-clean.no-iu.pbr | 0.0029 -> 0.0028: -0.0001 (0.97) mozilla-dirstate-v1 | default-plain-clean.no-iu.pbr | 0.2110 -> 0.2102: -0.0007 (1.00) mozilla-dirstate-v2 | default-copies-clean.ignored.pbr | 0.0489 -> 0.0401: -0.0088 (0.82) mozilla-dirstate-v2 | default-copies-clean.no-iu.pbr | 0.0479 -> 0.0393: -0.0085 (0.82) mozilla-dirstate-v2 | default-copies-large.all.pbr | 0.1262 -> 0.1210: -0.0051 (0.96) mozilla-dirstate-v2 | default-copies-small.ignored-unknown.pbr | 0.1262 -> 0.1200: -0.0062 (0.95) mozilla-dirstate-v2 | default-copies-small.ignored.pbr | 0.0536 -> 0.0417: -0.0119 (0.78) mozilla-dirstate-v2 | default-copies-small.no-iu.pbr | 0.0482 -> 0.0393: -0.0089 (0.81) mozilla-dirstate-v2 | default-plain-clean.ignored.pbr | 0.0518 -> 0.0402: -0.0116 (0.78) mozilla-dirstate-v2 | default-plain-clean.no-iu.pbr | 0.0481 -> 0.0392: -0.0088 (0.82) mozilla-dirstate-v2 | default-plain-large.all.pbr | 0.1271 -> 0.1218: -0.0052 (0.96) mozilla-dirstate-v2 | default-plain-small.ignored-unknown.pbr | 0.1225 -> 0.1202: -0.0022 (0.98) mozilla-dirstate-v2 | default-plain-small.ignored.pbr | 0.0510 -> 0.0418: -0.0092 (0.82) mozilla-dirstate-v2 | default-plain-small.no-iu.pbr | 0.0480 -> 0.0394: -0.0086 (0.82) netbeans-dirstate-v1 | default-plain-clean.no-iu.pbr | 0.1442 -> 0.1422: -0.0020 (0.99) netbeans-dirstate-v2 | default-plain-clean.no-iu.pbr | 0.0325 -> 0.0282: -0.0043 (0.87) ``` Differential Revision: https://phab.mercurial-scm.org/D12175

     1

#testcases abortcommand abortflag

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#if abortflag

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  $ cat >> $HGRCPATH <<EOF

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  > [alias]

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  > abort = histedit --abort

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  > EOF

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#endif

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  $ . "$TESTDIR/histedit-helpers.sh"

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Enable extension used by this test

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  $ cat >>$HGRCPATH <<EOF

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  > [extensions]

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  > histedit=

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  > EOF

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    18

=================================

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Test backup-bundle config option|

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=================================

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Repo setup:

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  $ hg init foo

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  $ cd foo

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  $ echo first>file

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  $ hg ci -qAm one

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  $ echo second>>file

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  $ hg ci -m two

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  $ echo third>>file

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  $ hg ci -m three

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  $ echo forth>>file

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  $ hg ci -m four

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  $ hg log -G --style compact

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  @  3[tip]   7d5187087c79   1970-01-01 00:00 +0000   test

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  |    four

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  |

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  o  2   80d23dfa866d   1970-01-01 00:00 +0000   test

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  |    three

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  |

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  o  1   6153eb23e623   1970-01-01 00:00 +0000   test

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  |    two

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  |

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  o  0   36b4bdd91f5b   1970-01-01 00:00 +0000   test

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       one

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Test when `backup-bundle` config option is enabled:

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  $ hg histedit -r '36b4bdd91f5b' --commands - << EOF

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  > pick 36b4bdd91f5b 0 one

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  > pick 6153eb23e623 1 two

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  > roll 80d23dfa866d 2 three

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  > edit 7d5187087c79 3 four

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  > EOF

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  merging file

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  Editing (7d5187087c79), commit as needed now to split the change

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  (to edit 7d5187087c79, `hg histedit --continue` after making changes)

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  [240]

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  $ hg abort

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  1 files updated, 0 files merged, 0 files removed, 0 files unresolved

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  saved backup bundle to $TESTTMP/foo/.hg/strip-backup/1d8f701c7b35-cf7be322-backup.hg

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  saved backup bundle to $TESTTMP/foo/.hg/strip-backup/5c0056670bce-b54b65d0-backup.hg

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Test when `backup-bundle` config option is not enabled

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Enable config option:

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  $ cat >>$HGRCPATH <<EOF

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  > [rewrite]

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  > backup-bundle = False

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  > EOF

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  $ hg histedit -r '36b4bdd91f5b' --commands - << EOF

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  > pick 36b4bdd91f5b 0 one

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  > pick 6153eb23e623 1 two

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  > roll 80d23dfa866d 2 three

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  > edit 7d5187087c79 3 four

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  > EOF

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  merging file

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  Editing (7d5187087c79), commit as needed now to split the change

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  (to edit 7d5187087c79, `hg histedit --continue` after making changes)

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  [240]

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  $ hg abort

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  1 files updated, 0 files merged, 0 files removed, 0 files unresolved