upstream/mercurial-mirror Files · tests/test-cat.t

internals: extract frame-based protocol docs to own document...

internals: extract frame-based protocol docs to own document wireprotocol.txt is quite long and difficult to digest. The frame-based protocol is effectively a standalone concept (and could even be used outside of Mercurial). So this commit extracts its docs to a standalone file. The first few paragraphs were rewritten as part of the extraction. Sections headers were adjusted accordingly. Existing referalls in wireprotocol.txt were updated to refer to the new doc / concept, which I've started referring to as `hgrpc`. I'm on the fence as to whether to move the HTTP and SSH transport details to the new doc as well. For now, I'm leaving them in wireprotocol.txt. Differential Revision: https://phab.mercurial-scm.org/D4443

Yuya Nishihara - - Load All Authors

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        $ hg init

        $ echo 0 > a

        $ echo 0 > b

        $ hg ci -A -m m

        adding a

        adding b

        $ hg rm a

        $ hg cat a

        0

        $ hg cat --decode a # more tests in test-encode

        0

        $ echo 1 > b

        $ hg ci -m m

        $ echo 2 > b

        $ hg cat -r 0 a

        0

        $ hg cat -r 0 b

        0

        $ hg cat -r 1 a

        a: no such file in rev 7040230c159c

        [1]

        $ hg cat -r 1 b

        1

      Test multiple files

        $ echo 3 > c

        $ hg ci -Am addmore c

        $ hg cat b c

        1

        3

        $ hg cat .

        1

        3

        $ hg cat . c

        1

        3

      Test fileset

        $ hg cat 'set:not(b) or a'

        3

        $ hg cat 'set:c or b'

        1

        3

        $ mkdir tmp

        $ hg cat --output tmp/HH_%H c

        $ hg cat --output tmp/RR_%R c

        $ hg cat --output tmp/h_%h c

        $ hg cat --output tmp/r_%r c

        $ hg cat --output tmp/%s_s c

        $ hg cat --output tmp/%d%%_d c

        $ hg cat --output tmp/%p_p c

        $ hg log -r . --template "{rev}: {node|short}\n"

        2: 45116003780e

        $ find tmp -type f | sort

        tmp/.%_d

        tmp/HH_45116003780e3678b333fb2c99fa7d559c8457e9

        tmp/RR_2

        tmp/c_p

        tmp/c_s

        tmp/h_45116003780e

        tmp/r_2

      Test template output

        $ hg --cwd tmp cat ../b ../c -T '== {path|relpath} ({path}) r{rev} ==\n{data}'

        == ../b (b) r2 ==

        1

        == ../c (c) r2 ==

        3

        $ hg cat b c -Tjson --output -

        [

         {

          "data": "1\n",

          "path": "b"

         },

         {

          "data": "3\n",

          "path": "c"

         }

        ]

        $ hg cat b c -Tjson --output 'tmp/%p.json'

        $ cat tmp/b.json

        [

         {

          "data": "1\n",

          "path": "b"

         }

        ]

        $ cat tmp/c.json

        [

         {

          "data": "3\n",

          "path": "c"

         }

        ]

      Test working directory

        $ echo b-wdir > b

        $ hg cat -r 'wdir()' b

        b-wdir

      Environment variables are not visible by default

        $ PATTERN='t4' hg log -r '.' -T "{ifcontains('PATTERN', envvars, 'yes', 'no')}\n"

        no

      Environment variable visibility can be explicit

        $ PATTERN='t4' hg log -r '.' -T "{envvars % '{key} -> {value}\n'}" \

        >                 --config "experimental.exportableenviron=PATTERN"

        PATTERN -> t4

      Test behavior of output when directory structure does not already exist

        $ mkdir foo

        $ echo a > foo/a

        $ hg add foo/a

        $ hg commit -qm "add foo/a"

        $ hg cat --output "output/%p" foo/a

        $ cat output/foo/a

        a

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				$ hg init
				$ echo 0 > a
				$ echo 0 > b
				$ hg ci -A -m m
				adding a
				adding b
				$ hg rm a
				$ hg cat a
				0
				$ hg cat --decode a # more tests in test-encode
				0
				$ echo 1 > b
				$ hg ci -m m
				$ echo 2 > b
				$ hg cat -r 0 a
				0
				$ hg cat -r 0 b
				0
				$ hg cat -r 1 a
				a: no such file in rev 7040230c159c
				[1]
				$ hg cat -r 1 b
				1

				Test multiple files

				$ echo 3 > c
				$ hg ci -Am addmore c
				$ hg cat b c
				1
				3
				$ hg cat .
				1
				3
				$ hg cat . c
				1
				3

				Test fileset

				$ hg cat 'set:not(b) or a'
				3
				$ hg cat 'set:c or b'
				1
				3

				$ mkdir tmp
				$ hg cat --output tmp/HH_%H c
				$ hg cat --output tmp/RR_%R c
				$ hg cat --output tmp/h_%h c
				$ hg cat --output tmp/r_%r c
				$ hg cat --output tmp/%s_s c
				$ hg cat --output tmp/%d%%_d c
				$ hg cat --output tmp/%p_p c
				$ hg log -r . --template "{rev}: {node\|short}\n"
				2: 45116003780e
				$ find tmp -type f \| sort
				tmp/.%_d
				tmp/HH_45116003780e3678b333fb2c99fa7d559c8457e9
				tmp/RR_2
				tmp/c_p
				tmp/c_s
				tmp/h_45116003780e
				tmp/r_2

				Test template output

				$ hg --cwd tmp cat ../b ../c -T '== {path\|relpath} ({path}) r{rev} ==\n{data}'
				== ../b (b) r2 ==
				1
				== ../c (c) r2 ==
				3

				$ hg cat b c -Tjson --output -
				[
				{
				"data": "1\n",
				"path": "b"
				},
				{
				"data": "3\n",
				"path": "c"
				}
				]

				$ hg cat b c -Tjson --output 'tmp/%p.json'
				$ cat tmp/b.json
				[
				{
				"data": "1\n",
				"path": "b"
				}
				]
				$ cat tmp/c.json
				[
				{
				"data": "3\n",
				"path": "c"
				}
				]

				Test working directory

				$ echo b-wdir > b
				$ hg cat -r 'wdir()' b
				b-wdir

				Environment variables are not visible by default

				$ PATTERN='t4' hg log -r '.' -T "{ifcontains('PATTERN', envvars, 'yes', 'no')}\n"
				no

				Environment variable visibility can be explicit

				$ PATTERN='t4' hg log -r '.' -T "{envvars % '{key} -> {value}\n'}" \
				> --config "experimental.exportableenviron=PATTERN"
				PATTERN -> t4

				Test behavior of output when directory structure does not already exist

				$ mkdir foo
				$ echo a > foo/a
				$ hg add foo/a
				$ hg commit -qm "add foo/a"
				$ hg cat --output "output/%p" foo/a
				$ cat output/foo/a
				a