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view tests/test-bheads.t @ 27372:a79cba6cb206
help: add documentation for changegroup formats
There is no formal location for spec-like technical/internal docs. The
repository makes sense as such a location because spec-like
documentation should be reviewed (ruling out a wiki). mpm has also
stated that he would like this documentation to be part of the
built-in help system. So, we establish an "internals" sub-directory
to hold this class of documentation.
The format of changegroups does not appear to be documented anywhere,
even in source code. It therefore seemed like an appropriate first thing
to document.
This patch adds low-level documentation of versions 1 and 2 of the
changegroup foromat. It currently only describes the raw data format.
There is probably room to write higher-level documentation on strategies
for producing and consuming the data. We'll leave that for another day.
The added file is not yet accessible via `hg help` nor via hgweb.
Support for this will follow in subsequent patches.
author | Gregory Szorc <gregory.szorc@gmail.com> |
---|---|
date | Sun, 25 Oct 2015 00:19:45 +0100 |
parents | 701df761aa94 |
children | 95c4cca641f6 |
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$ heads() > { > hg heads --template '{rev}: {desc|firstline|strip} ({branches})\n' "$@" > } $ hg init a $ cd a $ echo 'root' >root $ hg add root $ hg commit -m "Adding root node" $ heads 0: Adding root node () ------- $ heads . 0: Adding root node () ======= $ echo 'a' >a $ hg add a $ hg branch a marked working directory as branch a (branches are permanent and global, did you want a bookmark?) $ hg commit -m "Adding a branch" $ heads 1: Adding a branch (a) 0: Adding root node () ------- $ heads . 1: Adding a branch (a) ======= $ hg update -C 0 0 files updated, 0 files merged, 1 files removed, 0 files unresolved $ echo 'b' >b $ hg add b $ hg branch b marked working directory as branch b $ hg commit -m "Adding b branch" $ heads 2: Adding b branch (b) 1: Adding a branch (a) 0: Adding root node () ------- $ heads . 2: Adding b branch (b) ======= $ echo 'bh1' >bh1 $ hg add bh1 $ hg commit -m "Adding b branch head 1" $ heads 3: Adding b branch head 1 (b) 1: Adding a branch (a) 0: Adding root node () ------- $ heads . 3: Adding b branch head 1 (b) ======= $ hg update -C 2 0 files updated, 0 files merged, 1 files removed, 0 files unresolved $ echo 'bh2' >bh2 $ hg add bh2 $ hg commit -m "Adding b branch head 2" created new head $ heads 4: Adding b branch head 2 (b) 3: Adding b branch head 1 (b) 1: Adding a branch (a) 0: Adding root node () $ heads . 4: Adding b branch head 2 (b) 3: Adding b branch head 1 (b) ======= $ hg update -C 2 0 files updated, 0 files merged, 1 files removed, 0 files unresolved $ echo 'bh3' >bh3 $ hg add bh3 $ hg commit -m "Adding b branch head 3" created new head $ heads 5: Adding b branch head 3 (b) 4: Adding b branch head 2 (b) 3: Adding b branch head 1 (b) 1: Adding a branch (a) 0: Adding root node () ------- $ heads . 5: Adding b branch head 3 (b) 4: Adding b branch head 2 (b) 3: Adding b branch head 1 (b) ======= $ hg merge 4 1 files updated, 0 files merged, 0 files removed, 0 files unresolved (branch merge, don't forget to commit) $ hg commit -m "Merging b branch head 2 and b branch head 3" $ heads 6: Merging b branch head 2 and b branch head 3 (b) 3: Adding b branch head 1 (b) 1: Adding a branch (a) 0: Adding root node () ------- $ heads . 6: Merging b branch head 2 and b branch head 3 (b) 3: Adding b branch head 1 (b) ======= $ echo 'c' >c $ hg add c $ hg branch c marked working directory as branch c $ hg commit -m "Adding c branch" $ heads 7: Adding c branch (c) 6: Merging b branch head 2 and b branch head 3 (b) 3: Adding b branch head 1 (b) 1: Adding a branch (a) 0: Adding root node () ------- $ heads . 7: Adding c branch (c) ======= $ heads -r 3 . no open branch heads found on branches c (started at 3) [1] $ heads -r 2 . 7: Adding c branch (c) ------- $ hg update -C 4 0 files updated, 0 files merged, 2 files removed, 0 files unresolved ------- $ heads -r 3 . 3: Adding b branch head 1 (b) ------- $ heads -r 2 . 6: Merging b branch head 2 and b branch head 3 (b) 3: Adding b branch head 1 (b) ------- $ heads -r 7 . no open branch heads found on branches b (started at 7) [1] ======= $ for i in 0 1 2 3 4 5 6 7; do > hg update -C "$i" > heads > echo '-------' > heads . > echo '-------' > done 0 files updated, 0 files merged, 2 files removed, 0 files unresolved 7: Adding c branch (c) 6: Merging b branch head 2 and b branch head 3 (b) 3: Adding b branch head 1 (b) 1: Adding a branch (a) 0: Adding root node () ------- 0: Adding root node () ------- 1 files updated, 0 files merged, 0 files removed, 0 files unresolved 7: Adding c branch (c) 6: Merging b branch head 2 and b branch head 3 (b) 3: Adding b branch head 1 (b) 1: Adding a branch (a) 0: Adding root node () ------- 1: Adding a branch (a) ------- 1 files updated, 0 files merged, 1 files removed, 0 files unresolved 7: Adding c branch (c) 6: Merging b branch head 2 and b branch head 3 (b) 3: Adding b branch head 1 (b) 1: Adding a branch (a) 0: Adding root node () ------- 6: Merging b branch head 2 and b branch head 3 (b) 3: Adding b branch head 1 (b) ------- 1 files updated, 0 files merged, 0 files removed, 0 files unresolved 7: Adding c branch (c) 6: Merging b branch head 2 and b branch head 3 (b) 3: Adding b branch head 1 (b) 1: Adding a branch (a) 0: Adding root node () ------- 6: Merging b branch head 2 and b branch head 3 (b) 3: Adding b branch head 1 (b) ------- 1 files updated, 0 files merged, 1 files removed, 0 files unresolved 7: Adding c branch (c) 6: Merging b branch head 2 and b branch head 3 (b) 3: Adding b branch head 1 (b) 1: Adding a branch (a) 0: Adding root node () ------- 6: Merging b branch head 2 and b branch head 3 (b) 3: Adding b branch head 1 (b) ------- 1 files updated, 0 files merged, 1 files removed, 0 files unresolved 7: Adding c branch (c) 6: Merging b branch head 2 and b branch head 3 (b) 3: Adding b branch head 1 (b) 1: Adding a branch (a) 0: Adding root node () ------- 6: Merging b branch head 2 and b branch head 3 (b) 3: Adding b branch head 1 (b) ------- 1 files updated, 0 files merged, 0 files removed, 0 files unresolved 7: Adding c branch (c) 6: Merging b branch head 2 and b branch head 3 (b) 3: Adding b branch head 1 (b) 1: Adding a branch (a) 0: Adding root node () ------- 6: Merging b branch head 2 and b branch head 3 (b) 3: Adding b branch head 1 (b) ------- 1 files updated, 0 files merged, 0 files removed, 0 files unresolved 7: Adding c branch (c) 6: Merging b branch head 2 and b branch head 3 (b) 3: Adding b branch head 1 (b) 1: Adding a branch (a) 0: Adding root node () ------- 7: Adding c branch (c) ------- ======= $ for i in a b c z; do > heads "$i" > echo '-------' > done 1: Adding a branch (a) ------- 6: Merging b branch head 2 and b branch head 3 (b) 3: Adding b branch head 1 (b) ------- 7: Adding c branch (c) ------- abort: unknown revision 'z'! ------- ======= $ heads 0 1 2 3 4 5 6 7 7: Adding c branch (c) 6: Merging b branch head 2 and b branch head 3 (b) 3: Adding b branch head 1 (b) 1: Adding a branch (a) 0: Adding root node () Topological heads: $ heads -t 7: Adding c branch (c) 3: Adding b branch head 1 (b) 1: Adding a branch (a) $ cd .. ______________ "created new head" message tests $ hg init newheadmsg $ cd newheadmsg Init: no msg $ echo 1 > a $ hg ci -Am "a0: Initial root" adding a $ echo 2 >> a $ hg ci -m "a1 (HN)" $ hg branch b marked working directory as branch b (branches are permanent and global, did you want a bookmark?) $ echo 1 > b $ hg ci -Am "b2: Initial root for branch b" adding b $ echo 2 >> b $ hg ci -m "b3 (HN)" Case NN: msg $ hg up -q null $ hg branch -f b marked working directory as branch b $ echo 1 > bb $ hg ci -Am "b4 (NN): new topo root for branch b" adding bb created new head Case HN: no msg $ echo 2 >> bb $ hg ci -m "b5 (HN)" Case BN: msg $ hg branch -f default marked working directory as branch default $ echo 1 > aa $ hg ci -Am "a6 (BN): new branch root" adding aa created new head Case CN: msg $ hg up -q 4 $ echo 3 >> bbb $ hg ci -Am "b7 (CN): regular new head" adding bbb created new head Case BB: msg $ hg up -q 4 $ hg merge -q 3 $ hg branch -f default marked working directory as branch default $ hg ci -m "a8 (BB): weird new branch root" created new head Case CB: msg $ hg up -q 4 $ hg merge -q 1 $ hg ci -m "b9 (CB): new head from branch merge" created new head Case HB: no msg $ hg up -q 7 $ hg merge -q 6 $ hg ci -m "b10 (HB): continuing head from branch merge" Case CC: msg $ hg up -q 4 $ hg merge -q 2 $ hg ci -m "b11 (CC): new head from merge" created new head Case CH: no msg $ hg up -q 2 $ hg merge -q 10 $ hg ci -m "b12 (CH): continuing head from merge" Case HH: no msg $ hg merge -q 3 $ hg ci -m "b12 (HH): merging two heads" $ cd ..