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This commit is contained in:
Lars Hvam 2014-06-24 20:30:30 +02:00
parent cd037a70ce
commit 9ee8c322b5
1 changed files with 232 additions and 130 deletions
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zagit.abap
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@ -1,4 +1,4 @@
REPORT zdk8lahvp089.
REPORT zabapgit.
TYPES: t_type TYPE c LENGTH 6,
t_bitbyte TYPE c LENGTH 8,
@ -467,11 +467,12 @@ CLASS lcl_pack DEFINITION FINAL.
RETURNING value(rt_latest) TYPE tt_latest
RAISING lcx_exception.
CLASS-METHODS latest_commit IMPORTING it_objects TYPE tt_objects
RETURNING value(rs_object) TYPE st_object
RAISING lcx_exception.
* CLASS-METHODS latest_commit IMPORTING it_objects TYPE tt_objects
* RETURNING value(rs_object) TYPE st_object
* RAISING lcx_exception.
CLASS-METHODS latest_objects IMPORTING it_objects TYPE tt_objects
CLASS-METHODS latest_objects IMPORTING iv_branch TYPE t_sha1
it_objects TYPE tt_objects
RETURNING value(rt_latest) TYPE tt_latest
RAISING lcx_exception.
@ -485,7 +486,7 @@ CLASS lcl_pack DEFINITION FINAL.
PRIVATE SECTION.
CONSTANTS: c_debug_pack TYPE abap_bool VALUE abap_false,
c_pack_start TYPE x LENGTH 4 VALUE '5041434B',
c_pack_start TYPE x LENGTH 4 VALUE '5041434B', " PACK
c_zlib TYPE x LENGTH 2 VALUE '789C',
c_zlib_hmm TYPE x LENGTH 2 VALUE '7801',
c_version TYPE x LENGTH 4 VALUE '00000002'.
@ -727,7 +728,12 @@ CLASS lcl_pack IMPLEMENTATION.
ls_object TYPE st_object.
ls_object = latest_commit( it_objects ).
READ TABLE it_objects INTO ls_object WITH KEY sha1 = iv_branch type = gc_commit.
IF sy-subrc <> 0.
RAISE EXCEPTION TYPE lcx_exception
EXPORTING
iv_text = 'Commit/branch not found'. "#EC NOTEXT
ENDIF.
ls_commit = lcl_pack=>decode_commit( ls_object-data ).
walk( EXPORTING it_objects = it_objects
@ -737,51 +743,6 @@ CLASS lcl_pack IMPLEMENTATION.
ENDMETHOD. "latest
METHOD latest_commit.
DATA: lt_commits TYPE tt_objects,
ls_commit TYPE st_commit,
lv_sha1 TYPE t_sha1.
FIELD-SYMBOLS: <ls_object> LIKE LINE OF it_objects.
LOOP AT it_objects ASSIGNING <ls_object> WHERE type = gc_commit.
APPEND <ls_object> TO lt_commits.
ENDLOOP.
* find first commit
LOOP AT lt_commits ASSIGNING <ls_object>.
ls_commit = lcl_pack=>decode_commit( <ls_object>-data ).
IF ls_commit-parent IS INITIAL.
lv_sha1 = <ls_object>-sha1.
EXIT. " current loop.
ENDIF.
ENDLOOP.
* todo, there must be faster/easier way to do this
* todo, assumes no branching
DO lines( lt_commits ) TIMES.
LOOP AT lt_commits ASSIGNING <ls_object>.
ls_commit = lcl_pack=>decode_commit( <ls_object>-data ).
IF ls_commit-parent = lv_sha1.
lv_sha1 = <ls_object>-sha1.
EXIT. " current loop
ENDIF.
ENDLOOP.
ENDDO.
READ TABLE lt_commits ASSIGNING <ls_object> WITH KEY sha1 = lv_sha1.
IF sy-subrc <> 0.
RAISE EXCEPTION TYPE lcx_exception
EXPORTING
iv_text = 'Latest, commit not found'. "#EC NOTEXT
ENDIF.
rs_object = <ls_object>.
ENDMETHOD. "latest_commit
METHOD sanity_checks.
DATA: ls_commit TYPE st_commit,
@ -1359,27 +1320,50 @@ CLASS lcl_transport DEFINITION FINAL.
PUBLIC SECTION.
* from GitHub to SAP
CLASS-METHODS upload_pack IMPORTING iv_repo TYPE string
RETURNING value(rv_pack) TYPE xstring
EXPORTING ev_pack TYPE xstring
ev_branch TYPE t_sha1
RAISING lcx_exception.
* from SAP to GitHub
CLASS-METHODS receive_pack IMPORTING iv_repo TYPE string
iv_commit TYPE t_sha1
iv_pack TYPE xstring
RAISING lcx_exception.
PRIVATE SECTION.
CONSTANTS: c_debug_http TYPE abap_bool VALUE abap_false.
CONSTANTS: c_debug_http TYPE abap_bool VALUE abap_true,
c_cap_list TYPE string VALUE 'side-band-64k no-progress',
c_dot_git TYPE c LENGTH 4 VALUE '.git'.
CLASS-METHODS pkt IMPORTING iv_string TYPE string
CHANGING cv_pkt TYPE string
CLASS-METHODS pkt_string
IMPORTING iv_string TYPE string
RETURNING value(rv_pkt) TYPE string
RAISING lcx_exception.
CLASS-METHODS parse EXPORTING ev_pack TYPE xstring
CHANGING cv_data TYPE xstring.
CLASS-METHODS pkt_xstring
IMPORTING iv_xstring TYPE xstring
RETURNING value(rv_pkt) TYPE xstring
RAISING lcx_exception.
CLASS-METHODS length_utf8_hex IMPORTING iv_data TYPE xstring
CLASS-METHODS parse
EXPORTING ev_pack TYPE xstring
CHANGING cv_data TYPE xstring.
CLASS-METHODS length_utf8_hex
IMPORTING iv_data TYPE xstring
RETURNING value(rv_len) TYPE i.
CLASS-METHODS ref_discovery
IMPORTING iv_repo TYPE string
iv_service TYPE string
EXPORTING ei_client TYPE REF TO if_http_client
ev_branch TYPE t_sha1
RAISING lcx_exception.
CLASS-METHODS check_http_200
IMPORTING if_client TYPE REF TO if_http_client
RAISING lcx_exception.
ENDCLASS. "lcl_transport DEFINITION
*----------------------------------------------------------------------*
@ -1389,14 +1373,161 @@ ENDCLASS. "lcl_transport DEFINITION
*----------------------------------------------------------------------*
CLASS lcl_transport IMPLEMENTATION.
METHOD pkt_xstring.
DATA: lv_x2 TYPE x LENGTH 2,
lv_xstring TYPE xstring,
lv_string TYPE string.
lv_x2 = xstrlen( iv_xstring ).
lv_string = lv_x2.
lv_xstring = lcl_convert=>string_to_xstring_utf8( lv_string ).
CONCATENATE lv_xstring iv_xstring INTO rv_pkt IN BYTE MODE.
ENDMETHOD. "pkt_xstring
METHOD check_http_200.
DATA: lv_code TYPE i.
if_client->response->get_status(
IMPORTING
code = lv_code ).
IF lv_code <> 200.
RAISE EXCEPTION TYPE lcx_exception
EXPORTING
iv_text = 'HTTP error code'. "#EC NOTEXT
ENDIF.
ENDMETHOD. "http_200
METHOD ref_discovery.
DATA: lv_hash TYPE c LENGTH 40,
lt_result TYPE TABLE OF string,
lv_data TYPE string.
cl_http_client=>create_by_url(
EXPORTING
url = 'https://github.com' "#EC NOTEXT
IMPORTING
client = ei_client ).
ei_client->request->set_cdata( '' ).
ei_client->request->set_header_field(
name = '~request_method'
value = 'GET' ).
ei_client->request->set_header_field(
name = '~request_uri'
value = iv_repo && '/info/refs?service=git-' && iv_service && '-pack' ).
ei_client->send( ).
ei_client->receive( ).
check_http_200( ei_client ).
lv_data = ei_client->response->get_cdata( ).
SPLIT lv_data AT cl_abap_char_utilities=>newline INTO TABLE lt_result.
LOOP AT lt_result INTO lv_data.
IF lv_data CP '*refs/heads/master*'.
lv_hash = lv_data+4.
ENDIF.
ENDLOOP.
TRANSLATE lv_hash TO UPPER CASE.
IF strlen( lv_hash ) <> 40.
RAISE EXCEPTION TYPE lcx_exception
EXPORTING
iv_text = 'Branch not found'. "#EC NOTEXT
ENDIF.
ev_branch = lv_hash.
ENDMETHOD. "ref_discovery
METHOD receive_pack.
DATA: li_client TYPE REF TO if_http_client,
lv_cmd_pkt TYPE string,
lv_line TYPE string,
lv_x TYPE x,
lv_pack TYPE xstring,
lv_tmp TYPE xstring,
lv_xstring TYPE xstring,
lv_code TYPE i,
lv_buffer TYPE string,
lv_branch TYPE t_sha1,
lv_repo TYPE string.
IF NOT iv_repo CP '*Foobar*'.
BREAK-POINT.
RETURN.
ENDIF.
* todo
CONCATENATE iv_repo c_dot_git INTO lv_repo. "#EC NOTEXT
ref_discovery(
EXPORTING
iv_repo = lv_repo
iv_service = 'receive'
IMPORTING
ei_client = li_client
ev_branch = lv_branch ).
****************************
li_client->request->set_header_field(
name = '~request_method'
value = 'POST' ).
li_client->request->set_header_field(
name = '~request_uri'
value = lv_repo && '/git-receive-pack' ).
li_client->request->set_header_field(
name = 'Content-Type'
value = 'Content-Type: application/x-git-receive-pack-request' ). "#EC NOTEXT
* todo, test report-status capability
lv_line = lv_branch &&
` ` &&
iv_commit &&
` ` &&
'refs/heads/master' &&
* ` ` &&
* c_cap_list &&
cl_abap_char_utilities=>newline. "#EC NOTEXT
lv_cmd_pkt = pkt_string( lv_line ).
lv_buffer = lv_cmd_pkt
&& '0000'
&& cl_abap_char_utilities=>newline.
lv_tmp = lcl_convert=>string_to_xstring_utf8( lv_buffer ).
* lv_x = '01'.
* CONCATENATE lv_x iv_pack INTO lv_pack IN BYTE MODE. " band
* lv_xstring = pkt_xstring( lv_pack ).
break-point.
CONCATENATE lv_tmp iv_pack INTO lv_xstring IN BYTE MODE.
li_client->request->set_data( lv_xstring ).
li_client->send( ).
li_client->receive( ).
li_client->response->get_status(
IMPORTING
code = lv_code ).
lv_xstring = li_client->response->get_data( ).
li_client->close( ).
* todo, try calling parse to check xstring
BREAK-POINT.
* expect "000Aunpack ok"
ENDMETHOD. "receive_pack
@ -1477,59 +1608,23 @@ CLASS lcl_transport IMPLEMENTATION.
METHOD upload_pack.
DATA: lv_code TYPE i,
li_client TYPE REF TO if_http_client,
lt_result TYPE TABLE OF string,
DATA: li_client TYPE REF TO if_http_client,
lv_buffer TYPE string,
lv_hash TYPE c LENGTH 40,
lv_xstring TYPE xstring,
lv_line TYPE string,
lv_repo TYPE string,
lv_pkt TYPE string,
lv_data TYPE string.
lv_pkt TYPE string.
CONCATENATE iv_repo '.git' INTO lv_repo. "#EC NOTEXT
CONCATENATE iv_repo c_dot_git INTO lv_repo. "#EC NOTEXT
cl_http_client=>create_by_url(
ref_discovery(
EXPORTING
url = 'https://github.com' "#EC NOTEXT
iv_repo = lv_repo
iv_service = 'upload'
IMPORTING
client = li_client ).
lv_buffer = ''.
li_client->request->set_cdata( lv_buffer ).
li_client->request->set_header_field(
name = '~request_method'
value = 'GET' ).
li_client->request->set_header_field(
name = '~request_uri'
value = lv_repo && '/info/refs?service=git-upload-pack' ).
li_client->send( ).
li_client->receive( ).
li_client->response->get_status(
IMPORTING
code = lv_code ).
IF lv_code <> 200.
RAISE EXCEPTION TYPE lcx_exception
EXPORTING
iv_text = 'HTTP error code'. "#EC NOTEXT
ENDIF.
lv_data = li_client->response->get_cdata( ).
SPLIT lv_data AT cl_abap_char_utilities=>newline INTO TABLE lt_result.
LOOP AT lt_result INTO lv_data.
IF lv_data CP '*refs/heads/master*'.
lv_hash = lv_data+4.
ENDIF.
ENDLOOP.
IF strlen( lv_hash ) <> 40.
RAISE EXCEPTION TYPE lcx_exception
EXPORTING
iv_text = 'Branch not found'. "#EC NOTEXT
ENDIF.
ei_client = li_client
ev_branch = ev_branch ).
*--------------------------------------------------------------------
@ -1545,12 +1640,11 @@ CLASS lcl_transport IMPLEMENTATION.
lv_line = 'want' &&
` ` &&
lv_hash &&
ev_branch &&
` ` &&
'side-band-64k no-progress'
c_cap_list
&& cl_abap_char_utilities=>newline. "#EC NOTEXT
pkt( EXPORTING iv_string = lv_line
CHANGING cv_pkt = lv_pkt ).
lv_pkt = pkt_string( lv_line ).
lv_buffer = lv_pkt
&& '0000'
@ -1559,29 +1653,24 @@ CLASS lcl_transport IMPLEMENTATION.
li_client->request->set_cdata( lv_buffer ).
li_client->send( ).
li_client->receive( ).
li_client->response->get_status(
IMPORTING
code = lv_code ).
IF lv_code <> 200.
RAISE EXCEPTION TYPE lcx_exception
EXPORTING
iv_text = 'HTTP error code'. "#EC NOTEXT
ENDIF.
check_http_200( li_client ).
lv_xstring = li_client->response->get_data( ).
li_client->close( ).
parse( IMPORTING ev_pack = rv_pack
parse( IMPORTING ev_pack = ev_pack
CHANGING cv_data = lv_xstring ).
ENDMETHOD. "uplaod_pack
ENDMETHOD. "upload_pack
METHOD pkt.
METHOD pkt_string.
DATA: lv_x TYPE x,
lv_len TYPE i.
lv_len = strlen( iv_string ).
* todo, use int_to_xstring
IF lv_len >= 255.
RAISE EXCEPTION TYPE lcx_exception
EXPORTING
@ -1590,7 +1679,7 @@ CLASS lcl_transport IMPLEMENTATION.
lv_x = lv_len + 4.
cv_pkt = cv_pkt && '00' && lv_x && iv_string.
rv_pkt = rv_pkt && '00' && lv_x && iv_string.
ENDMETHOD. "pkt
@ -1625,6 +1714,7 @@ FORM run.
* DATA: lv_repo TYPE string VALUE '/montagejs/collections'. " 100%
DATA: lv_pack TYPE xstring,
lv_branch TYPE t_sha1,
lt_latest TYPE tt_latest,
ls_object TYPE st_object,
lx_exception TYPE REF TO lcx_exception,
@ -1634,7 +1724,9 @@ FORM run.
TRY.
lv_pack = lcl_transport=>upload_pack( lv_repo ).
lcl_transport=>upload_pack( EXPORTING iv_repo = lv_repo
IMPORTING ev_pack = lv_pack
ev_branch = lv_branch ).
IF lv_pack IS INITIAL.
RETURN.
@ -1650,13 +1742,19 @@ FORM run.
lcl_pack=>sanity_checks( lt_objects ).
lt_latest = lcl_pack=>latest_objects( lt_objects ).
lt_latest = lcl_pack=>latest_objects( iv_branch = lv_branch
it_objects = lt_objects ).
LOOP AT lt_latest ASSIGNING <ls_latest>.
WRITE: / <ls_latest>-path, 40 <ls_latest>-filename.
ENDLOOP.
ls_object = lcl_pack=>latest_commit( lt_objects ).
READ TABLE lt_objects INTO ls_object WITH KEY sha1 = lv_branch type = gc_commit.
IF sy-subrc <> 0.
RAISE EXCEPTION TYPE lcx_exception
EXPORTING
iv_text = 'Commit not found'. "#EC NOTEXT
ENDIF.
PERFORM receive USING ls_object lv_repo.
CATCH lcx_exception INTO lx_exception.
@ -1731,10 +1829,9 @@ FORM receive USING ps_parent TYPE st_object
lv_pack = lcl_pack=>encode( lt_objects ).
BREAK-POINT.
lcl_transport=>receive_pack( iv_repo = pv_repo
iv_pack = lv_pack ).
lcl_transport=>receive_pack( iv_repo = pv_repo
iv_commit = lcl_hash=>sha1( iv_type = gc_commit iv_data = lv_commit )
iv_pack = lv_pack ).
ENDFORM. "download
@ -2090,12 +2187,17 @@ CLASS lcl_abap_unit IMPLEMENTATION.
METHOD latest.
DATA: lv_pack TYPE xstring,
lv_branch TYPE t_sha1,
lt_objects TYPE tt_objects.
lv_pack = lcl_transport=>upload_pack( iv_repo ).
lcl_transport=>upload_pack( EXPORTING iv_repo = iv_repo
IMPORTING ev_pack = lv_pack
ev_branch = lv_branch ).
lt_objects = lcl_pack=>decode( lv_pack ).
lcl_pack=>decode_deltas( CHANGING ct_objects = lt_objects ).
rt_latest = lcl_pack=>latest_objects( lt_objects ).
rt_latest = lcl_pack=>latest_objects( iv_branch = lv_branch
it_objects = lt_objects ).
ENDMETHOD. "latest