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path: root/doc/howto-publish-a-release.md
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Prepare the "stable" branch
---------------------------
Before you can do anything else, you need to decide what should be included in
the new version.

**Bugfix releases** bump the third number of the version, e.g. 1.9.0 -> 1.9.1.
They may include bugfix commits that you `git cherry-pick`ed from the master
branch into the stable branch, or you can just do a fast-forward merge of
master into stable, if there were only bugfix commits since the last major
version.  You can also add minor new features that are very likely not causing
any bugs.  However, there should be absolutely **no** backward-incompatible
changes, like:

- renamed or removed settings, commands or python functions
- renamed, removed or reordered function arguments
- change in syntax of configuration files or in API of configuration scripts

New settings are okay, just make sure a sane default value is defined.

**Major releases** bump the second number of the version, e.g. 1.9.2 -> 1.10.0
and are necessary if you introduce any breaking changes, like the ones
mentioned in the list above.

Test everything
----------------
* [ ] `make test`
* [ ] `./ranger.py [--clean]`
* [ ] `ranger/ext/rifle.py`
* [ ] `make install`

Make a release commit
---------------------
* [ ] Update the number in the `README`
* [ ] Update `__version__` and `__release__` in `ranger/__init__.py`
* [ ] Update `__version__` in `ranger/ext/rifle.py`
* [ ] `make man`
* [ ] Write changelog entry
* [ ] Think of a witty commit message
* [ ] Commit
* [ ] Tag the signed release with `git tag -as vX.Y.Z`, using the same
      commit message as annotation
* [ ] Push release and tag

Make snapshot and test again
----------------------------
* [ ] Build `.tar.gz` with `make snapshot`
* [ ] `make`
* [ ] `make install`
* [ ] Test the snapshot one last time

Update the website
------------------
* [ ] Add the new version as `ranger-stable.tar.gz`
* [ ] Add the new version as `ranger-X.Y.Z.tar.gz`
* [ ] Update both signatures `gpg --local-user 0x00FB5CDF --sign --detach-sign <file>`
* [ ] Update the man page
    * [ ] run `make manhtml` in ranger's repository
    * [ ] copy the generated `doc/ranger.1.html` to the `ranger.github.io` repository
* [ ] Rebuild the website, see `README.md` in https://github.com/ranger/ranger.github.io
* [ ] Commit & push the website

Make a PyPI release
-------------------
* [ ] `git clean --force -d -x`
* [ ] `python setup.py sdist`
* [ ] `gpg --local-user 0x00000000 --detach-sign --armor dist/*`
* [ ] `twine upload dist/*`

Announce the update
-------------------
* [ ] To the mailing list
* [ ] In the arch linux forum

Change back to before
---------------------
* [ ] Change `__release__` in `ranger/__init__.py` back to `False`
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# write-byte-buffered: add a single byte to a buffered-file.
# flush: write out any buffered writes to disk.
#
# TODO: Come up with a way to signal failure to write to disk. This is hard
# since the failure may impact previous calls that were buffered.

== data

# The buffered file for standard output.
Stdout:  # buffered-file
    # file descriptor or (addr stream byte)
    1/imm32  # standard output
$Stdout->buffer:
    # inlined fields for a stream
    #   current write index
    0/imm32
    #   current read index
    0/imm32
    #   length
    8/imm32
    #   data
    00 00 00 00 00 00 00 00  # 8 bytes

# TODO: 8 bytes is too small. We'll need to grow the buffer for efficiency. But
# I don't want to type in 1024 bytes here.

== code
#   instruction                     effective address                                                   register    displacement    immediate
# . op          subop               mod             rm32          base        index         scale       r32
# . 1-3 bytes   3 bits              2 bits          3 bits        3 bits      3 bits        2 bits      2 bits      0/1/2/4 bytes   0/1/2/4 bytes

# Write lower byte of 'n' to 'f'.
write-byte-buffered:  # f: (addr buffered-file), n: int
    # . prologue
    55/push-ebp
    89/copy                         3/mod/direct    5/rm32/ebp    .           .             .           4/r32/esp   .               .                 # copy esp to ebp
    # . save registers
    51/push-ecx
    57/push-edi
    # edi = f
    8b/copy                         1/mod/*+disp8   5/rm32/ebp    .           .             .           7/r32/edi   8/disp8         .                 # copy *(ebp+8) to edi
    # ecx = f->write
    8b/copy                         1/mod/*+disp8   7/rm32/edi    .           .             .           1/r32/ecx   4/disp8         .                 # copy *(edi+4) to ecx
    # if (f->write >= f->length) flush and clear f's stream
    3b/compare                      1/mod/*+disp8   7/rm32/edi    .           .             .           1/r32/ecx   0xc/disp8       .                 # compare ecx with *(edi+12)
    7c/jump-if-<  $write-byte-buffered:to-stream/disp8
    # . flush(f)
    # . . push args
    57/push-edi
    # . . call
    e8/call  flush/disp32
    # . . discard args
    81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               4/imm32           # add to esp
    # . clear-stream(stream = f+4)
    # . . push args
    8d/copy-address                 1/mod/*+disp8   7/rm32/edi    .           .             .           0/r32/eax   4/disp8         .                 # copy edi+4 to eax
    50/push-eax
    # . . call
    e8/call  clear-stream/disp32
    # . . discard args
    81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               4/imm32           # add to esp
    # . f->write must now be 0; update its cache at ecx
    31/xor                          3/mod/direct    1/rm32/ecx    .           .             .           1/r32/ecx   .               .                 # clear ecx
$write-byte-buffered:to-stream:
    # write to stream
    # f->data[f->write] = LSB(n)
    31/xor                          3/mod/direct    0/rm32/eax    .           .             .           0/r32/eax   .               .                 # clear eax
    8a/copy-byte                    1/mod/*+disp8   5/rm32/ebp    .           .             .           0/r32/AL    0xc/disp8       .                 # copy byte at *(ebp+12) to AL
    88/copy-byte                    1/mod/*+disp8   4/rm32/sib    7/base/edi  1/index/ecx   .           0/r32/AL    0x10/disp8      .                 # copy AL to *(edi+ecx+16)
    # ++f->write
    ff          0/subop/increment   1/mod/*+disp8   7/rm32/edi    .           .             .           .           4/disp8         .                 # increment *(edi+4)
$write-byte-buffered:end:
    # . restore registers
    5f/pop-to-edi
    59/pop-to-ecx
    # . epilogue
    89/copy                         3/mod/direct    4/rm32/esp    .           .             .           5/r32/ebp   .               .                 # copy ebp to esp
    5d/pop-to-ebp
    c3/return

flush:  # f: (addr buffered-file)
    # . prologue
    55/push-ebp
    89/copy                         3/mod/direct    5/rm32/ebp    .           .             .           4/r32/esp   .               .                 # copy esp to ebp
    # . save registers
    50/push-eax
    51/push-ecx
    # eax = f
    8b/copy                         1/mod/*+disp8   5/rm32/ebp    .           .             .           0/r32/eax   8/disp8         .                 # copy *(ebp+8) to eax
    # write-stream(f->fd, data = f+4)
      # . . push args
    8d/copy-address                 1/mod/*+disp8   0/rm32/eax    .           .             .           1/r32/ecx   4/disp8         .                 # copy eax+4 to ecx
    51/push-ecx
    ff          6/subop/push        0/mod/indirect  0/rm32/eax    .           .             .           .           .               .                 # push *eax
      # . . call
    e8/call  write-stream/disp32
      # . . discard args
    81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               8/imm32           # add to esp
$flush:end:
    # . restore registers
    59/pop-to-ecx
    58/pop-to-eax
    # . epilogue
    89/copy                         3/mod/direct    4/rm32/esp    .           .             .           5/r32/ebp   .               .                 # copy ebp to esp
    5d/pop-to-ebp
    c3/return

test-write-byte-buffered-single:
    # - check that write-byte-buffered writes to first byte of 'file'
    # setup
    # . clear-stream(_test-stream)
    # . . push args
    68/push  _test-stream/imm32
    # . . call
    e8/call  clear-stream/disp32
    # . . discard args
    81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               4/imm32           # add to esp
    # . clear-stream($_test-buffered-file->buffer)
    # . . push args
    68/push  $_test-buffered-file->buffer/imm32
    # . . call
    e8/call  clear-stream/disp32
    # . . discard args
    81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               4/imm32           # add to esp
    # write-byte-buffered(_test-buffered-file, 'A')
    # . . push args
    68/push  0x41/imm32
    68/push  _test-buffered-file/imm32
    # . . call
    e8/call  write-byte-buffered/disp32
    # . . discard args
    81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               8/imm32           # add to esp
    # flush(_test-buffered-file)
    # . . push args
    68/push  _test-buffered-file/imm32
    # . . call
    e8/call  flush/disp32
    # . . discard args
    81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               4/imm32           # add to esp
    # check-stream-equal(_test-stream, "A", msg)
    # . . push args
    68/push  "F - test-write-byte-buffered-single"/imm32
    68/push  "A"/imm32
    68/push  _test-stream/imm32
    # . . call
    e8/call  check-stream-equal/disp32
    # . . discard args
    81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               0xc/imm32         # add to esp
    # . end
    c3/return

test-write-byte-buffered-multiple-flushes:
    # - check that write-byte-buffered correctly flushes buffered data
    # setup
    # . clear-stream(_test-stream)
    # . . push args
    68/push  _test-stream/imm32
    # . . call
    e8/call  clear-stream/disp32
    # . . discard args
    81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               4/imm32           # add to esp
    # . clear-stream($_test-buffered-file->buffer)
    # . . push args
    68/push  $_test-buffered-file->buffer/imm32
    # . . call
    e8/call  clear-stream/disp32
    # . . discard args
    81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               4/imm32           # add to esp
    # fill up the buffer for _test-buffered-file
    # . write($_test-buffered-file->buffer, "abcdef")
    # . . push args
    68/push  "abcdef"/imm32
    68/push  $_test-buffered-file->buffer/imm32
    # . . call
    e8/call  write/disp32
    # . . discard args
    81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               8/imm32           # add to esp
    # write-byte-buffered(_test-buffered-file, 'g')
    # . . push args
    68/push  0x67/imm32
    68/push  _test-buffered-file/imm32
    # . . call
    e8/call  write-byte-buffered/disp32
    # . . discard args
    81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               8/imm32           # add to esp
    # flush(_test-buffered-file)
    # . . push args
    68/push  _test-buffered-file/imm32
    # . . call
    e8/call  flush/disp32
    # . . discard args
    81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               4/imm32           # add to esp
    # check-stream-equal(_test-stream, "abcdefg", msg)
    # . . push args
    68/push  "F - test-write-byte-buffered-multiple-flushes"/imm32
    68/push  "abcdefg"/imm32
    68/push  _test-stream/imm32
    # . . call
    e8/call  check-stream-equal/disp32
    # . . discard args
    81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               0xc/imm32         # add to esp
    # . end
    c3/return

# - variant without buffering

# Write lower byte of 'n' to 'f'.
append-byte:  # f: (addr stream byte), n: int
    # . prologue
    55/push-ebp
    89/copy                         3/mod/direct    5/rm32/ebp    .           .             .           4/r32/esp   .               .                 # copy esp to ebp
    # . save registers
    51/push-ecx
    57/push-edi
    # edi = f
    8b/copy                         1/mod/*+disp8   5/rm32/ebp    .           .             .           7/r32/edi   8/disp8         .                 # copy *(ebp+8) to edi
    # ecx = f->write
    8b/copy                         0/mod/indirect  7/rm32/edi    .           .             .           1/r32/ecx   .               .                 # copy *edi to ecx
    # if (f->write >= f->length) abort
    3b/compare                      1/mod/*+disp8   7/rm32/edi    .           .             .           1/r32/ecx   8/disp8         .                 # compare ecx with *(edi+8)
    7d/jump-if->=  $append-byte:abort/disp8
$append-byte:to-stream:
    # write to stream
    # f->data[f->write] = LSB(n)
    31/xor                          3/mod/direct    0/rm32/eax    .           .             .           0/r32/eax   .               .                 # clear eax
    8a/copy-byte                    1/mod/*+disp8   5/rm32/ebp    .           .             .           0/r32/AL    0xc/disp8       .                 # copy byte at *(ebp+12) to AL
    88/copy-byte                    1/mod/*+disp8   4/rm32/sib    7/base/edi  1/index/ecx   .           0/r32/AL    0xc/disp8       .                 # copy AL to *(edi+ecx+12)
    # ++f->write
    ff          0/subop/increment   0/mod/indirect  7/rm32/edi    .           .             .           .           .               .                 # increment *edi
$append-byte:end:
    # . restore registers
    5f/pop-to-edi
    59/pop-to-ecx
    # . epilogue
    89/copy                         3/mod/direct    4/rm32/esp    .           .             .           5/r32/ebp   .               .                 # copy ebp to esp
    5d/pop-to-ebp
    c3/return

$append-byte:abort:
    # . _write(2/stderr, error)
    # . . push args
    68/push  "append-byte: out of space\n"/imm32
    68/push  2/imm32/stderr
    # . . call
    e8/call  _write/disp32
    # . . discard args
    81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               8/imm32           # add to esp
    # . syscall(exit, 1)
    bb/copy-to-ebx  1/imm32
    b8/copy-to-eax  1/imm32/exit
    cd/syscall  0x80/imm8
    # never gets here

test-append-byte-single:
    # - check that append-byte writes to first byte of 'file'
    # setup
    # . clear-stream(_test-stream)
    # . . push args
    68/push  _test-stream/imm32
    # . . call
    e8/call  clear-stream/disp32
    # . . discard args
    81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               4/imm32           # add to esp
    # append-byte(_test-stream, 'A')
    # . . push args
    68/push  0x41/imm32
    68/push  _test-stream/imm32
    # . . call
    e8/call  append-byte/disp32
    # . . discard args
    81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               8/imm32           # add to esp
    # check-stream-equal(_test-stream, "A", msg)
    # . . push args
    68/push  "F - test-append-byte-single"/imm32
    68/push  "A"/imm32
    68/push  _test-stream/imm32
    # . . call
    e8/call  check-stream-equal/disp32
    # . . discard args
    81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               0xc/imm32         # add to esp
    # . end
    c3/return

== data

_test-output-stream:  # (stream byte)
    # current write index
    0/imm32
    # current read index
    0/imm32
    # length
    0x200/imm32  # 512 bytes
    # data (32 lines x 16 bytes/line)
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

# a test buffered file for _test-output-stream
_test-output-buffered-file:  # buffered-file
    # file descriptor or (addr stream byte)
    _test-output-stream/imm32
$_test-output-buffered-file->buffer:
    # current write index
    0/imm32
    # current read index
    0/imm32
    # length
    6/imm32
    # data
    00 00 00 00 00 00  # 6 bytes

_test-error-stream:  # (stream byte)
    # current write index
    0/imm32
    # current read index
    0/imm32
    # line
    0x80/imm32  # 128 bytes
    # data (8 lines x 16 bytes/line)
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

# a test buffered file for _test-error-stream
_test-error-buffered-file:  # buffered-file
    # file descriptor or (addr stream byte)
    _test-error-stream/imm32
$_test-error-buffered-file->buffer:
    # current write index
    0/imm32
    # current read index
    0/imm32
    # length
    6/imm32
    # data
    00 00 00 00 00 00  # 6 bytes

# . . vim:nowrap:textwidth=0