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Overview
Comment:Add compression to the built-in javascript. Update comments on graph.js.
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SHA3-256: 4da95b254396d1f3fc8875a9fdccec82499d669efa6bd3e96ce15a8210587c7a
User & Date: drh 2018-12-28 16:52:07
Context
2018-12-28
18:15
Enhance the from=/to= query parameters on the /timeline page so that when the "rel" query parameter is present, the graph shows checkins that merge with checkins on the choose path. check-in: 7759a00e user: drh tags: trunk
16:52
Add compression to the built-in javascript. Update comments on graph.js. check-in: 4da95b25 user: drh tags: trunk
16:21
Improved graph display when a single checkin is the parent of both a normal and a cherrypick merge. check-in: 30aec47a user: drh tags: trunk
Changes
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Changes to src/graph.js.

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**        is iTopRow and numbers increase moving down the timeline.
**   bg:  The background color for this row
**    r:  The "rail" that the node for this row sits on.  The left-most
**        rail is 0 and the number increases to the right.
**    d:  If exists and true then there is a "descender" - an arrow
**        coming from the bottom of the page straight up to this node.
**   mo:  "merge-out".  If it exists, this is the rail position
**        for the upward portion of a merge arrow.  The merge arrow goes up
**        to the row identified by mu:.  If this value is omitted then
**        node has no merge children and no merge-out line is drawn.

**   mu:  The id of the row which is the top of the merge-out arrow.
**        Only exists if "mo" exists.
**   cu:  The id of the top row of the merge-out arrow for a cherrypick
**        merge arrow that extends beyond the main merge arrow. Only
**        exists if "mo" exists and if there is a cherrpick merge that is
**        higher than "mu".
**    u:  Draw a thick child-line out of the top of this node and up to
**        the node with an id equal to this value.  0 if it is straight to
**        the top of the page, -1 if there is no thick-line riser.
**    f:  0x01: a leaf node.
**        0x02: all output merges are cherrypicks
**   au:  An array of integers that define thick-line risers for branches.
**        The integers are in pairs.  For each pair, the first integer is
**        is the rail on which the riser should run and the second integer
**        is the id of the node upto which the riser should run. If there
**        are no risers, this array does not exist.
**   mi:  "merge-in".  An array of integer rail positions from which
**        merge arrows should be drawn into this node.  If the value is







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**        is iTopRow and numbers increase moving down the timeline.
**   bg:  The background color for this row
**    r:  The "rail" that the node for this row sits on.  The left-most
**        rail is 0 and the number increases to the right.
**    d:  If exists and true then there is a "descender" - an arrow
**        coming from the bottom of the page straight up to this node.
**   mo:  "merge-out".  If it exists, this is the rail position
**        for the upward portion of a merge arrow.  The merge arrow goes as
**        a solid normal merge line up to the row identified by "mu" and
**        then as a dashed cherrypick merge line up further to "cu".
**        If this value is omitted if there are no merge children.
**   mu:  The id of the row which is the top of the merge-out arrow.
**        Only exists if "mo" exists.

**   cu:  Extend the mu merge arrow up to this row as a cherrypick
**        merge line, if this value exists.

**    u:  Draw a thick child-line out of the top of this node and up to
**        the node with an id equal to this value.  0 if it is straight to
**        the top of the page, -1 if there is no thick-line riser.
**    f:  0x01: a leaf node.

**   au:  An array of integers that define thick-line risers for branches.
**        The integers are in pairs.  For each pair, the first integer is
**        is the rail on which the riser should run and the second integer
**        is the id of the node upto which the riser should run. If there
**        are no risers, this array does not exist.
**   mi:  "merge-in".  An array of integer rail positions from which
**        merge arrows should be drawn into this node.  If the value is

Changes to src/mkbuiltin.c.

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    exit(1);
  }
  got = fread(z, 1, nByte, in);
  fclose(in);
  z[got] = 0;
  return z;
}








































/*
** There is an instance of the following for each file translated.
*/
typedef struct Resource Resource;
struct Resource {
  char *zName;
................................................................................
  int j, n;
  Resource *aRes;
  int nRes;
  unsigned char *pData;
  int nErr = 0;
  int nSkip;
  int nPrefix = 0;


  if( argc>3 && strcmp(argv[1],"--prefix")==0 ){
    nPrefix = (int)strlen(argv[2]);
    argc -= 2;
    argv += 2;
  }
  nRes = argc - 1;
................................................................................

    /* Skip initial lines beginning with # */
    nSkip = 0;
    while( pData[nSkip]=='#' ){
      while( pData[nSkip]!=0 && pData[nSkip]!='\n' ){ nSkip++; }
      if( pData[nSkip]=='\n' ) nSkip++;
    }









    aRes[i].nByte = sz - nSkip;
    aRes[i].idx = i;
    printf("/* Content of file %s */\n", aRes[i].zName);
    printf("static const unsigned char bidata%d[%d] = {\n  ",
           i, sz+1-nSkip);
    for(j=nSkip, n=0; j<=sz; j++){







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    exit(1);
  }
  got = fread(z, 1, nByte, in);
  fclose(in);
  z[got] = 0;
  return z;
}

/*
** Try to compress a javascript file by removing unnecessary whitespace.
**
** Warning:  This compression routine does not necessarily work for any
** arbitrary Javascript source file.  But it should work ok for the
** well-behaved source files in this project.
*/
static void compressJavascript(unsigned char *z, int *pn){
  int n = *pn;
  int i, j, k;
  for(i=j=0; i<n; i++){
    unsigned char c = z[i];
    if( c=='/' ){
      if( z[i+1]=='*' ){
        for(k=i+3; k<n && (z[k]!='/' || z[k-1]!='*'); k++){}
        if( k<n ){
          i = k;
          while( i+1<n && isspace(z[i+1]) ) i++;
          continue;
        }
      }else if( z[i+1]=='/' ){
        for(k=i+2; k<n && z[k]!='\n'; k++){}
        i = k;
        while( i+1<n && isspace(z[i+1]) ) i++;
        continue;
      }
    }
    if( c=='\n' ){
      while( j>0 && isspace(z[j-1]) ) j--;
      z[j++] = '\n';
      while( i+1<n && isspace(z[i+1]) ) i++;
      continue;
    }
    z[j++] = c;
  }
  z[j] = 0;
  *pn = j;
}

/*
** There is an instance of the following for each file translated.
*/
typedef struct Resource Resource;
struct Resource {
  char *zName;
................................................................................
  int j, n;
  Resource *aRes;
  int nRes;
  unsigned char *pData;
  int nErr = 0;
  int nSkip;
  int nPrefix = 0;
  int nName;

  if( argc>3 && strcmp(argv[1],"--prefix")==0 ){
    nPrefix = (int)strlen(argv[2]);
    argc -= 2;
    argv += 2;
  }
  nRes = argc - 1;
................................................................................

    /* Skip initial lines beginning with # */
    nSkip = 0;
    while( pData[nSkip]=='#' ){
      while( pData[nSkip]!=0 && pData[nSkip]!='\n' ){ nSkip++; }
      if( pData[nSkip]=='\n' ) nSkip++;
    }

    /* Compress javascript source files */
    nName = (int)strlen(aRes[i].zName);
    if( nName>3 && strcmp(&aRes[i].zName[nName-3],".js")==0 ){
      int x = sz-nSkip;
      compressJavascript(pData+nSkip, &x);
      sz = x + nSkip;
    }

    aRes[i].nByte = sz - nSkip;
    aRes[i].idx = i;
    printf("/* Content of file %s */\n", aRes[i].zName);
    printf("static const unsigned char bidata%d[%d] = {\n  ",
           i, sz+1-nSkip);
    for(j=nSkip, n=0; j<=sz; j++){

Changes to src/timeline.c.

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    **   mo:  "merge-out".  If it exists, this is the rail position
    **        for the upward portion of a merge arrow.  The merge arrow goes as
    **        a solid normal merge line up to the row identified by "mu" and
    **        then as a dashed cherrypick merge line up further to "cu".
    **        If this value is omitted if there are no merge children.
    **   mu:  The id of the row which is the top of the merge-out arrow.
    **        Only exists if "mo" exists.
    **   cu:  Extend the mu merge error on up to this row as a cherrypick
    **        merge line, if this value exists.
    **    u:  Draw a thick child-line out of the top of this node and up to
    **        the node with an id equal to this value.  0 if it is straight to
    **        the top of the page, -1 if there is no thick-line riser.
    **    f:  0x01: a leaf node.
    **   au:  An array of integers that define thick-line risers for branches.
    **        The integers are in pairs.  For each pair, the first integer is







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    **   mo:  "merge-out".  If it exists, this is the rail position
    **        for the upward portion of a merge arrow.  The merge arrow goes as
    **        a solid normal merge line up to the row identified by "mu" and
    **        then as a dashed cherrypick merge line up further to "cu".
    **        If this value is omitted if there are no merge children.
    **   mu:  The id of the row which is the top of the merge-out arrow.
    **        Only exists if "mo" exists.
    **   cu:  Extend the mu merge arrow up to this row as a cherrypick
    **        merge line, if this value exists.
    **    u:  Draw a thick child-line out of the top of this node and up to
    **        the node with an id equal to this value.  0 if it is straight to
    **        the top of the page, -1 if there is no thick-line riser.
    **    f:  0x01: a leaf node.
    **   au:  An array of integers that define thick-line risers for branches.
    **        The integers are in pairs.  For each pair, the first integer is