[PATCH 3 of 3] debugbuilddag: build a changelog dag from a concise description
Peter Arrenbrecht
peter.arrenbrecht at gmail.com
Sat Feb 13 21:02:22 UTC 2010
# HG changeset patch
# User Peter Arrenbrecht <peter.arrenbrecht at gmail.com>
# Date 1266093976 -3600
debugbuilddag: build a changelog dag from a concise description
Useful in tests to quickly build a complex DAG in an empty repo.
Handles local tags and named branches.
Options to, at each rev,
- create a new file,
- overwrite the same file,
- append to the same file,
- write to a specific line in a mergeable file.
Can run shell commands during DAG buildup.
diff --git a/mercurial/commands.py b/mercurial/commands.py
--- a/mercurial/commands.py
+++ b/mercurial/commands.py
@@ -756,6 +756,123 @@
a = r.ancestor(lookup(rev1), lookup(rev2))
ui.write("%d:%s\n" % (r.rev(a), hex(a)))
+def debugbuilddag(ui, repo, text,
+ mergeable_file=False,
+ appended_file=False,
+ overwritten_file=False,
+ new_file=False):
+ """builds a repo with a given dag from scratch in the current empty repo
+
+ Elements:
+
+ - "+n" is a linear run of n nodes based on the current default parent
+ - "." is a single node based on the current default parent
+ - "$" resets the default parent to null (implied at the start);
+ otherwise the default parent is always the last node created
+ - "<p" sets the default parent to the backref p
+ - "*p" is a fork at parent p, which is a backref
+ - "*p1/p2" is a merge of parents p1 and p2, which are backrefs
+ - "/p2" is a merge of the preceding node and p2
+ - ":tag" defines a local tag for the preceding node
+ - "@branch" sets the named branch for subsequent nodes
+ - "!command" runs the command using your shell
+ - "!!my command\\n" is like "!", but to the end of the line
+ - "#...\\n" is a comment up to the end of the line
+
+ Whitespace between the above elements is ignored.
+
+ A backref is either
+
+ - a number n, which references the node curr-n, where curr is the current
+ node, or
+ - the name of a local tag you placed earlier using ":tag", or
+ - empty to denote the default parent.
+
+ All string valued-elements are either strictly alphanumeric, or must
+ be enclosed in double quotes ("..."), with "\" as escape character.
+
+ Note that the --overwritten-file and --appended-file options imply the
+ use of "HGMERGE=internal:local" during DAG buildup.
+ """
+
+ if not (mergeable_file or appended_file or overwritten_file or new_file):
+ raise Exception(_('need at least one of -m, -a, -o, -n'))
+
+ if len(repo.changelog) > 0:
+ raise Exception(_('repository is not empty'))
+
+ if overwritten_file or appended_file:
+ # we don't want to fail in merges during buildup
+ os.environ['HGMERGE'] = 'internal:local'
+
+ def writefile(fname, text, fmode="w"):
+ f = open(fname, fmode)
+ try:
+ f.write(text)
+ finally:
+ f.close()
+
+ if mergeable_file:
+ linesperrev = 2
+ # determine number of revs in DAG
+ n = 0
+ for type, data in dagparser.parsedag(text):
+ if type == 'n':
+ n += 1
+ # make a file with k lines per rev
+ writefile("mf", "\n".join(str(i) for i in xrange(0, n * linesperrev))
+ + "\n")
+
+ at = -1
+ atbranch = 'default'
+ for type, data in dagparser.parsedag(text):
+ if type == 'n':
+ ui.status('node %s\n' % format(data))
+ id, ps = data
+ p1 = ps[0]
+ if p1 != at:
+ update(ui, repo, node=p1, clean=True)
+ at = p1
+ if repo.dirstate.branch() != atbranch:
+ branch(ui, repo, atbranch, force=True)
+ if len(ps) > 1:
+ p2 = ps[1]
+ merge(ui, repo, node=p2)
+
+ if mergeable_file:
+ f = open("mf", "r+")
+ try:
+ lines = f.read().split("\n")
+ lines[id * linesperrev] += " r%i" % id
+ f.seek(0)
+ f.write("\n".join(lines))
+ finally:
+ f.close()
+
+ if appended_file:
+ writefile("af", "r%i\n" % id, "a")
+
+ if overwritten_file:
+ writefile("of", "r%i\n" % id)
+
+ if new_file:
+ writefile("nf%i" % id, "r%i\n" % id)
+
+ commit(ui, repo, addremove=True, message="r%i" % id, date=(id, 0))
+ at = id
+ elif type == 'l':
+ id, name = data
+ ui.status('tag %s\n' % name)
+ tag(ui, repo, name, local=True)
+ elif type == 'a':
+ ui.status('branch %s\n' % data)
+ atbranch = data
+ elif type in 'cC':
+ r = util.system(data, cwd=repo.root)
+ if r:
+ desc, r = util.explain_exit(r)
+ raise util.Abort(_('%s command %s') % (data, desc))
+
def debugcommands(ui, cmd='', *args):
for cmd, vals in sorted(table.iteritems()):
cmd = cmd.split('|')[0].strip('^')
@@ -3564,6 +3681,14 @@
] + walkopts + dryrunopts,
_('[OPTION]... [SOURCE]... DEST')),
"debugancestor": (debugancestor, [], _('[INDEX] REV1 REV2')),
+ "debugbuilddag":
+ (debugbuilddag,
+ [('m', 'mergeable-file', None, _('add single file mergeable changes')),
+ ('a', 'appended-file', None, _('add single file all revs append to')),
+ ('o', 'overwritten-file', None, _('add single file all revs overwrite')),
+ ('n', 'new-file', None, _('add new file at each rev')),
+ ],
+ _('[OPTION]... TEXT')),
"debugcheckstate": (debugcheckstate, [], ''),
"debugcommands": (debugcommands, [], _('[COMMAND]')),
"debugcomplete":
diff --git a/tests/test-debugbuilddag b/tests/test-debugbuilddag
new file mode 100755
--- /dev/null
+++ b/tests/test-debugbuilddag
@@ -0,0 +1,70 @@
+#! /bin/sh
+
+echo "[extensions]" >> $HGRCPATH
+echo "graphlog=" >> $HGRCPATH
+
+
+
+echo ---- overwritten and appended files
+
+rm -rf repo
+hg init repo
+cd repo
+hg debugbuilddag '+2:f +3:p2 @temp <f+4 @default /p2 +2' -q -oa
+echo -- dag
+hg debugdag -t -b
+echo -- glog
+hg glog --template '{rev}: {desc} [{branches}] @ {date}\n'
+echo -- glog of
+hg glog --template '{rev}: {desc} [{branches}]\n' of
+echo -- glog af
+hg glog --template '{rev}: {desc} [{branches}]\n' af
+echo -- tags
+hg tags -v
+echo -- cat of
+hg cat of
+echo -- cat af
+hg cat af
+cd ..
+
+echo ---- new and mergeable files
+
+rm -rf repo
+hg init repo
+cd repo
+hg debugbuilddag '+2:f +3:p2 @temp <f+4 @default /p2 +2' -q -mn
+echo -- dag
+hg debugdag -t -b
+echo -- glog
+hg glog --template '{rev}: {desc} [{branches}] @ {date}\n'
+echo -- glog mf
+hg glog --template '{rev}: {desc} [{branches}]\n' mf
+
+echo -- man r4
+hg manifest -r4
+echo -- cat r4 mf
+hg cat -r4 mf
+echo -- man r8
+hg manifest -r8
+echo -- cat r8 mf
+hg cat -r8 mf
+echo -- man
+hg manifest
+echo -- cat mf
+hg cat mf
+cd ..
+
+echo ---- command
+
+rm -rf repo
+hg init repo
+cd repo
+hg debugbuilddag '+2 !"touch X" +2' -q -o
+echo -- dag
+hg debugdag -t -b
+echo -- glog
+hg glog --template '{rev}: {desc} [{branches}]\n'
+echo -- glog X
+hg glog --template '{rev}: {desc} [{branches}]\n' X
+cd ..
+
diff --git a/tests/test-debugbuilddag.out b/tests/test-debugbuilddag.out
new file mode 100644
--- /dev/null
+++ b/tests/test-debugbuilddag.out
@@ -0,0 +1,272 @@
+---- overwritten and appended files
+-- dag
++2:f
++3:p2
+ at temp*f+3
+ at default*/p2+2:tip
+-- glog
+@ 11: r11 [] @ 11.00
+|
+o 10: r10 [] @ 10.00
+|
+o 9: r9 [] @ 9.00
+|\
+| o 8: r8 [temp] @ 8.00
+| |
+| o 7: r7 [temp] @ 7.00
+| |
+| o 6: r6 [temp] @ 6.00
+| |
+| o 5: r5 [temp] @ 5.00
+| |
+o | 4: r4 [] @ 4.00
+| |
+o | 3: r3 [] @ 3.00
+| |
+o | 2: r2 [] @ 2.00
+|/
+o 1: r1 [] @ 1.00
+|
+o 0: r0 [] @ 0.00
+
+-- glog of
+@ 11: r11 []
+|
+o 10: r10 []
+|
+o 9: r9 []
+|\
+| o 8: r8 [temp]
+| |
+| o 7: r7 [temp]
+| |
+| o 6: r6 [temp]
+| |
+| o 5: r5 [temp]
+| |
+o | 4: r4 []
+| |
+o | 3: r3 []
+| |
+o | 2: r2 []
+|/
+o 1: r1 []
+|
+o 0: r0 []
+
+-- glog af
+@ 11: r11 []
+|
+o 10: r10 []
+|
+o 9: r9 []
+|\
+| o 8: r8 [temp]
+| |
+| o 7: r7 [temp]
+| |
+| o 6: r6 [temp]
+| |
+| o 5: r5 [temp]
+| |
+o | 4: r4 []
+| |
+o | 3: r3 []
+| |
+o | 2: r2 []
+|/
+o 1: r1 []
+|
+o 0: r0 []
+
+-- tags
+tip 11:f96e381c614c
+p2 4:d9d6db981b55 local
+f 1:73253def624e local
+-- cat of
+r11
+-- cat af
+r0
+r1
+r5
+r6
+r7
+r8
+r9
+r10
+r11
+---- new and mergeable files
+-- dag
++2:f
++3:p2
+ at temp*f+3
+ at default*/p2+2:tip
+-- glog
+@ 11: r11 [] @ 11.00
+|
+o 10: r10 [] @ 10.00
+|
+o 9: r9 [] @ 9.00
+|\
+| o 8: r8 [temp] @ 8.00
+| |
+| o 7: r7 [temp] @ 7.00
+| |
+| o 6: r6 [temp] @ 6.00
+| |
+| o 5: r5 [temp] @ 5.00
+| |
+o | 4: r4 [] @ 4.00
+| |
+o | 3: r3 [] @ 3.00
+| |
+o | 2: r2 [] @ 2.00
+|/
+o 1: r1 [] @ 1.00
+|
+o 0: r0 [] @ 0.00
+
+-- glog mf
+@ 11: r11 []
+|
+o 10: r10 []
+|
+o 9: r9 []
+|\
+| o 8: r8 [temp]
+| |
+| o 7: r7 [temp]
+| |
+| o 6: r6 [temp]
+| |
+| o 5: r5 [temp]
+| |
+o | 4: r4 []
+| |
+o | 3: r3 []
+| |
+o | 2: r2 []
+|/
+o 1: r1 []
+|
+o 0: r0 []
+
+-- man r4
+mf
+nf0
+nf1
+nf2
+nf3
+nf4
+-- cat r4 mf
+0 r0
+1
+2 r1
+3
+4 r2
+5
+6 r3
+7
+8 r4
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+-- man r8
+mf
+nf0
+nf1
+nf5
+nf6
+nf7
+nf8
+-- cat r8 mf
+0 r0
+1
+2 r1
+3
+4
+5
+6
+7
+8
+9
+10 r5
+11
+12 r6
+13
+14 r7
+15
+16 r8
+17
+18
+19
+20
+21
+22
+23
+-- man
+mf
+nf0
+nf1
+nf10
+nf11
+nf2
+nf3
+nf4
+nf5
+nf6
+nf7
+nf8
+nf9
+-- cat mf
+0 r0
+1
+2 r1
+3
+4 r2
+5
+6 r3
+7
+8 r4
+9
+10 r5
+11
+12 r6
+13
+14 r7
+15
+16 r8
+17
+18 r9
+19
+20 r10
+21
+22 r11
+23
+---- command
+-- dag
++4:tip
+-- glog
+@ 3: r3 []
+|
+o 2: r2 []
+|
+o 1: r1 []
+|
+o 0: r0 []
+
+-- glog X
+o 2: r2 []
+
diff --git a/tests/test-doctest.py b/tests/test-doctest.py
--- a/tests/test-doctest.py
+++ b/tests/test-doctest.py
@@ -16,7 +16,7 @@
doctest.testmod(mercurial.util)
import mercurial.dagparser
-doctest.testmod(mercurial.dagparser)
+doctest.testmod(mercurial.dagparser, optionflags=doctest.NORMALIZE_WHITESPACE)
import hgext.convert.cvsps
doctest.testmod(hgext.convert.cvsps)
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