JP2005346660A - Source code management server and source code management program - Google Patents

Abstract

A source code management server for efficiently managing source code changes is provided.
A source code management server 1 parses a source code file received from a client terminal and decomposes it into a syntax tree, and a previous version of the source code file for each element of the syntax tree. A repository editing unit 13 for extracting a change difference from the source code file and a repository information holding unit 20 for holding the change difference.
[Selection] Figure 1

Description

  The present invention relates to a source code management server and a source code management program.

  Conventionally, Visual SourceSafe of Microsoft Corporation and CVS of free software are known as source code change history management systems. These store the information of the source code before correction and the change difference information corresponding to the information in a database called a repository, and can display the corrected line for each version (see, for example, Patent Document 1).

However, when corrections are made across a plurality of files, the conventional products manage the differences only on a file basis, and thus it is not possible to associate the corrections on the plurality of files. On the other hand, products such as BitKeeper, Perfoce, and Subversion can process modifications to multiple files individually, so there is no inconsistency.
JP-A-2-79121

  However, there are still problems with the above-described improved technology. For example, since difference information is collected in binary units, changes that are not related to actual correction such as insertion of spaces or line breaks are detected. . That is, as shown in FIG. 9, a place where a space or a line feed is inserted is also recognized as a corrected place, and is displayed inverted (the hatched portion in FIG. 9). If the number of such displays (noise) increases, the efficiency of the operator who manages the change point decreases.

  Also, with the improved technology described above, changes to a plurality of files can be associated and managed. For this reason, when investigating the scope of impact at the time of revision of the previous revision at the time of a later version upgrade, it is possible to prevent omissions by comprehensively examining the files associated with the revision of the previous version. it can. However, when corrections are made more than once, not all corrections can be associated with each other, so there is a risk of omission of correction when investigating the influence range. For example, it is assumed that correction A is performed as shown in FIG. The correction A is a correction to a certain block of the files 1, 2, and 3, and these corrections are dependent on each other. For this reason, when the file 1 is corrected again, it is necessary to investigate the influence on the files 2 and 3. However, as shown in FIGS. 10B and 10C, when the correction A1 and the correction A2 are performed, a plurality of corrections cannot be associated with each other, so that the file 1 needs to be corrected in the future. You may not realize that you need to investigate the impact on File 2.

  Furthermore, the conventional source code management system manages a coding style that is not the essence of the source code. For this reason, when the source code management system is to be shared by a plurality of manufacturers and developers, as shown in FIGS. 11A and 11B, the position of the line break, the number of spaces, You may be confused by differences in coding style, such as the number of characters in tabs and the position of comments.

  In view of the above problems, an object of the present invention is to provide a source code management server and a source code management program for efficiently managing source code changes.

  In order to achieve the above object, the first feature of the present invention is: (a) a syntax analysis means for parsing a source code file received from a client terminal and decomposing it into a syntax tree; and (b) elements of the syntax tree. It is a source code management server that includes a repository editing unit that extracts a change difference from a source code file in a previous version of the source code file and (c) a repository information holding unit that holds the change difference. And Here, “syntax” refers to a unit having a logical meaning, such as an if statement or a for statement, and “syntax tree” refers to a tree shape of these syntaxes.

  According to the source code management server according to the first feature, by managing the change difference for each syntax tree, it is possible to efficiently manage the change of the source code.

  Further, the syntax analysis means of the source code management server according to the first feature may decompose the syntax tree for each minimum element of each language. Here, the “minimum element” refers to one sentence of the source code, for example, up to; is treated as one sentence. According to this source code management server, if there are changes that do not make sense such as spaces and line breaks, they are not displayed (removal of noise), improving the efficiency of workers who manage the changes. can do.

  In addition, the source code management server according to the first feature includes (d) a correction block management means for associating each block represented by the syntax tree with another block that is affected when the block is corrected. ) A correction block information holding unit for holding related information for each block associated by the correction block management means may be further provided. According to the source code management server, it is easy to confirm the affected range when the source code is corrected, and errors such as omission of correction can be reduced.

  The source code management server according to the first feature includes: (f) a coding information holding unit that holds coding information including a coding rule and a predetermined coding style; and (g) a syntax tree based on the coding information. It may further comprise format adjusting means for adjusting the coding style for the syntax tree and forming the syntax tree into a source code file format. According to this source code management server, different coding standards and coding styles are absorbed, and the source code can be shared among a plurality of manufacturers and developers.

  The second feature of the present invention is that the source code management server (b) parses the source code file received from the client terminal and decomposes it into a syntax tree, and (b) for each element of the syntax tree, The gist of the present invention is a source code management program that executes a procedure for extracting a change difference from a source code file in a previous version of a source code file.

  In addition, the source code management program according to the second feature includes (c) a procedure for associating each block represented by the syntax tree with another block that affects when the block is modified, and (d) the association. And a procedure for holding related information for each block may be further executed.

  The source code management program according to the second feature includes (e) a procedure for holding coding information including a coding rule and a predetermined coding style, and (f) coding on a syntax tree based on the coding information. The procedure of adjusting the style and shaping the syntax tree into a source code file format may be further executed.

  By reading out the source code management program, the source code management server or the like can execute the above procedure.

  According to the present invention, it is possible to provide a source code management server and a source code management program that perform efficient source code change management.

  Next, embodiments of the present invention will be described with reference to the drawings. In the following description of the drawings, the same or similar parts are denoted by the same or similar reference numerals. However, it should be noted that the drawings are schematic.

  In the embodiment of the present invention, a source code management server, a source code management method, and a source code management program for decomposing source code as a logical configuration tree and managing difference for each configuration block will be described.

(Source code management server)
As shown in FIG. 1, the source code management system according to the embodiment of the present invention includes a source code management server 1 and a plurality of client terminals 30a, 30b, and 30c. The source code management server 1 and the client terminals 30a, 30b, 30c are connected via a communication network (Internet, wireless LAN, etc.). The connection method may be wired or wireless.

  The client terminals 30a, 30b, and 30c are terminal devices that modify the source code, and specifically include personal computers (PCs), notebook computers, mobile phones, and the like. The client terminals 30a, 30b, and 30c receive the source code file from the source code management server 1 and transmit the modified source code file to the source code management server 1. Further, the client terminals 30a, 30b, and 30c display the change difference information received from the source code management server 1 as necessary. Here, the “change difference information” refers to a change place between a source code file of a predetermined version and a source code file of a previous version. Usually, such a change part is clearly shown by changing a color and a background color with another part.

  The source code management server 1 includes a processing control device (CPU) 10 that includes a repository information holding unit 20, a modified block information holding unit 21, a coding information holding unit 22, a program holding unit 23, an input device 24, and an output. A device 25 is connected. Further, the CPU 10 incorporates modules such as a communication unit 11, a syntax analysis unit 12, a repository editing unit 13, a format adjustment unit 14, and a correction block management unit 15. These modules can be realized by executing a dedicated program for using a predetermined program language in a general-purpose computer such as a personal computer.

  The communication unit 11 transmits the source code file to the client terminals 30a, 30b, and 20c, and receives the corrected source code file from the client terminals 30a, 30b, and 20c. Further, the communication unit 11 transmits the change difference information to the client terminals 30a, 30b, and 30c as necessary.

  The syntax analysis means 12 parses the source code file and decomposes it into a syntax tree as shown in FIG. Further, as shown in FIG. 4B, the syntax analysis unit 12 decomposes the syntax tree for each minimum element of each language.

  The repository editing unit 13 stores the source code file in the repository information holding unit 20 in the form of the syntax tree decomposed by the syntax analysis unit 12. Further, the repository editing means 13 extracts a change difference from the previous version for each element of the syntax tree and stores it in the repository information holding unit 20. Further, the repository editing unit 13 extracts a corresponding syntax tree from the repository information holding unit 20 based on the version number of the source code file specified from the client terminals 30a, 30b, and 30c.

  The format adjusting unit 14 adjusts the coding style for the syntax tree based on the coding information, and forms the syntax tree into a source code file format. The formed source code file is transmitted to the client terminals 30a, 30b, and 30c by the communication means 11.

  The corrected block management means 15 associates each block represented by the syntax tree with another block that has an influence when the block is corrected, and stores it in the corrected block information holding unit 21. Here, the “block” refers to a branch (such as a shaded portion shown in FIG. 5) represented by a syntax tree. The “other blocks” include not only the same source code file but also blocks existing in different source code files.

  The repository information holding unit 20 holds a source code file in the form of a syntax tree and a change difference from the previous version. Further, the repository information holding unit 20 may hold a syntax tree decomposed for each minimum element of each language.

  The corrected block information holding unit 21 holds related information for each block associated by the corrected block management unit 15.

  The coding information holding unit 22 holds coding information including a coding rule and a predetermined coding style. “Coding rules” are coding rules determined by each development environment, and “predetermined coding styles” are coding styles that differ for each user according to user preferences and the like. For example, as shown in FIG. 11, user A and user B have different coding styles such as a line feed method.

  The program holding unit 23 holds a source code management program for causing the CPU 10 to execute syntax analysis processing, repository editing processing, and the like. By reading the source code management program, the above-described syntax analysis means 12 (syntax analysis module) and repository editing means 13 (repository editing module) can be formed. The program holding unit 23 is a recording medium such as a RAM, a ROM, a hard disk, a flexible disk, a compact disk, an IC chip, and a cassette tape. According to such a recording medium, the source code management program can be easily stored, transported, sold, and the like.

  The input device 24 refers to devices such as a keyboard, a mouse, and a touch panel. When an input operation is performed from the input device 24, corresponding key information and position information are transmitted to the CPU 10.

  The output device 25 refers to a screen such as a monitor, and a liquid crystal display (LCD), a light emitting diode (LED) panel, an electroluminescence (EL) panel, or the like can be used.

  The repository information holding unit 20, the modified block information holding unit 21, and the coding information holding unit 22 are recording media that store the above-described information. Examples of the recording medium include RAM, ROM, hard disk, flexible disk, compact disk, IC chip, and cassette tape. According to such a recording medium, data can be easily stored, transported, sold, and the like.

(Source code management method)
Next, the source code management method according to the present embodiment will be described with reference to FIGS.

  First, a source code registration method will be described with reference to FIGS.

  (A) In step S101 in FIG. 2, the client terminal 30a edits the source code file, and transmits the corrected source code file to the source code management server 1 in step S102.

  (B) Next, in step S103, the syntax analysis means 12 parses the source code file and decomposes it into a syntax tree. For example, the source code file shown in FIG. 3A is broken down into a syntax tree as shown in FIG. Further, the syntax analysis means 12 may decompose the syntax tree for each minimum element of each language. For example, the source code file shown in FIG. 4A is broken down into a syntax tree as shown in FIG.

  (C) Next, in step S104, the syntax analysis unit 12 transmits the syntax tree to the repository editing unit 13. In step S105, the repository editing unit 13 checks whether there is a change from the previous version (the previous version of the modified source code file) for each element of the syntax tree, and sends the change difference to the repository information holding unit 20. save.

  After this, the source code management server 1 transmits the change difference information to the client terminals 30a, 30b, 30c in response to requests from the client terminals 30a, 30b, 30c, and the client terminals 30a, 30b, 30c, In 30c, a change difference display may be performed.

  Next, a correction block association method will be described with reference to FIG.

  The correction block management means 15 analyzes the syntax tree held in the repository information holding unit 20 and affects each block (such as the hatched portion shown in FIG. 5) expressed in the syntax tree when the block is corrected. Associate other blocks that exit. Specifically, from the change difference information held in the repository information holding unit 20, it is determined that the corrections at the same time are related corrections, and these blocks are associated.

  The blocks associated in this way are displayed on the output device 25 of the source code management server 1 based on the related information held in the modified block information holding unit 21. Alternatively, the source code management server 1 transmits related information together with the source code file to the client terminals 30a, 30b, and 30c, so that the associated blocks are displayed on the client terminals 30a, 30b, and 30c.

  As a related block display method, when a specific block is displayed, the related block may be displayed at the same time, and the name of the related block (source code in which the related block exists) is displayed in the vicinity of the displayed specific block. File version number, function name, number of lines, etc.) may be displayed.

  Next, a coding style adjustment method will be described with reference to FIGS.

  (A) In step S201 of FIG. 6, the client terminal 30a notifies the source code management server 1 of the version number of the source code file to be acquired. In step S202, the repository editing unit 13 extracts the specified version of the syntax tree from the repository information holding unit 20.

  (B) Next, in step S203, the repository editing unit 13 transmits the syntax tree information to the format adjusting unit 14 (see FIG. 7). On the other hand, in step 204, the format adjusting unit 14 acquires coding information from the coding information holding unit 22 (see FIG. 7).

  (C) Next, in step S205, the format adjusting unit 14 adjusts the coding style for the elements of the syntax tree based on the coding information. Then, the syntax tree is formed into a source code file format.

  (D) Next, in step S206, the source code management server 1 transmits the source code file to the client terminal 30a. In step S207, the client terminal 30a edits the source code file (see FIG. 7).

(Function and effect)
According to the source code management server 1, the source code management method, and the source code management program according to the present embodiment, by managing the change difference for each syntax tree, the source code can be efficiently managed.

  For example, the change difference display in the conventional product is the display shown in FIG. 8A, but according to the present embodiment, the display is as shown in FIG. 8B. That is, only the changed portion (i <sData.len ();) is displayed as the change difference (hatched portion), and the corrected portion can be easily grasped.

  In the present embodiment, the syntax tree can be decomposed for each minimum element of each language. For this reason, when there is a change that does not mean actual correction such as a space or a line break, these are not displayed (removal of noise), and the efficiency of the operator who manages the change can be improved.

  Further, in the present embodiment, each block represented by the syntax tree can be associated with another block that is affected when the block is modified. By displaying such related block information, it becomes easier to confirm the affected range when the source code is corrected, and errors such as omission of correction can be reduced.

  Further, in the present embodiment, the coding style can be adjusted based on the coding information including the coding rule and the predetermined coding style, and the syntax tree can be formed into the source code file format. For this reason, different coding standards and coding styles are absorbed, and source code can be shared among multiple manufacturers and developers.

(Other embodiments)
Although the present invention has been described according to the above-described embodiments, it should not be understood that the descriptions and drawings constituting a part of this disclosure limit the present invention. From this disclosure, various alternative embodiments, examples and operational techniques will be apparent to those skilled in the art.

  For example, in the present embodiment, it has been described that the source code management server 1 receives the modified source code file from the client terminals 30a, 30b, and 30c. However, the source code management server 1 receives the input from the input device 24 of the source code management server 1 and the FD. The source code file may be acquired by reading from the source. In addition, the source code management server 1 transmits change difference information to the client terminals 30a, 30b, and 30c, and the change difference display is performed in the client terminals 30a, 30b, and 30c. The display may be performed on one output device 25.

  Further, although it has been described that the source code management server 1 may include the syntax analysis unit 12 and the repository editing unit 13 as modules in one CPU, each may be provided in a different CPU and may be a different device. In that case, a plurality of devices are connected by a bus or the like.

  Further, the source code management server 1 has been described as having the repository information holding unit 21, the modified block information holding unit 21, the coding information holding unit 22, and the program holding unit 23 separately, but these pieces of information are stored in one holding unit. It may be held.

  As described above, the present invention naturally includes various embodiments not described herein. Therefore, the technical scope of the present invention is defined only by the invention specifying matters according to the scope of claims reasonable from the above description.

It is a block diagram of the configuration of a source code management server according to an embodiment of the present invention. It is a flowchart which shows the registration method of the source code which concerns on embodiment of this invention. It is a figure explaining decomposition | disassembly to the syntax tree of a source code file (the 1). It is a figure explaining decomposition | disassembly into the syntax tree of a source code file (the 2). It is a figure explaining the correlation method of the correction block which concerns on embodiment of this invention. It is a flowchart which shows the adjustment method of the coding style which concerns on embodiment of this invention. It is a figure explaining the adjustment method of the coding style which concerns on embodiment of this invention. It is a figure explaining the effect of the source code management server which concerns on embodiment of this invention. It is a figure explaining the problem of a prior art (the 1). It is a figure explaining the problem of a prior art (the 2). It is a figure explaining the problem of a prior art (the 3).

Explanation of symbols

1 ... Source code management server 10 ... CPU
DESCRIPTION OF SYMBOLS 11 ... Communication means 12 ... Syntax analysis means 13 ... Repository editing means 14 ... Format adjustment means 15 ... Correction block management means 20 ... Repository information holding part 21 ... Correction block information holding part 22 ... Coding information holding part 23 ... Program holding part 24 ... Input device 25 ... Output device 30a, 30b, 30c ... Client terminal

Claims (7)

Parsing source code file received from client terminal and parsing it into a syntax tree;
Repository editing means for extracting, for each element of the syntax tree, a change difference from a source code file in a previous version of the source code file;
A source code management server, comprising: a repository information holding unit that holds the change difference.   The source code management server according to claim 1, wherein the syntax analysis unit decomposes the syntax tree for each minimum element of each language. Modified block management means for associating each block represented by the syntax tree with another block that is affected when the block is modified;
The source code management server according to claim 1, further comprising: a correction block information holding unit that holds the related information for each of the blocks associated by the correction block management unit. A coding information holding unit for holding coding information including a coding rule and a predetermined coding style;
4. The method according to claim 1, further comprising: a format adjusting unit that adjusts a coding style for the syntax tree based on the coding information, and forms the syntax tree into a source code file format. The source code management server according to item 1. In the source code management server,
The source code file received from the client terminal is parsed and broken down into a syntax tree.
A source code management program for executing, for each element of the syntax tree, a procedure for extracting a change difference from a source code file in a previous version of the source code file. A procedure for associating each block represented in the syntax tree with another block that is affected when the block is modified;
The source code management program according to claim 5, further comprising: a step of holding related information for each of the associated blocks. A procedure for maintaining coding information including coding conventions and a predetermined coding style;
The source according to claim 5, further comprising: adjusting a coding style for the syntax tree based on the coding information, and forming the syntax tree into a source code file format. Code management program.

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